WO2003067160A1 - Dispositif de conditionnement de l'humidite - Google Patents
Dispositif de conditionnement de l'humidite Download PDFInfo
- Publication number
- WO2003067160A1 WO2003067160A1 PCT/JP2003/000944 JP0300944W WO03067160A1 WO 2003067160 A1 WO2003067160 A1 WO 2003067160A1 JP 0300944 W JP0300944 W JP 0300944W WO 03067160 A1 WO03067160 A1 WO 03067160A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- air
- refrigerant
- humidity control
- refrigerant circuit
- Prior art date
Links
- 230000003750 conditioning effect Effects 0.000 title abstract 2
- 239000003507 refrigerant Substances 0.000 claims abstract description 712
- 230000001172 regenerating effect Effects 0.000 claims abstract description 242
- 238000001179 sorption measurement Methods 0.000 claims description 239
- 239000003463 adsorbent Substances 0.000 claims description 69
- 238000005057 refrigeration Methods 0.000 claims description 36
- 230000008929 regeneration Effects 0.000 claims description 36
- 238000011069 regeneration method Methods 0.000 claims description 36
- 238000007599 discharging Methods 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 description 55
- 238000007791 dehumidification Methods 0.000 description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 50
- 238000010438 heat treatment Methods 0.000 description 28
- 238000004891 communication Methods 0.000 description 26
- 238000012986 modification Methods 0.000 description 21
- 230000004048 modification Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 16
- 238000001816 cooling Methods 0.000 description 14
- 239000012809 cooling fluid Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000001704 evaporation Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 239000002274 desiccant Substances 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000010979 ruby Substances 0.000 description 2
- 229910001750 ruby Inorganic materials 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1429—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/0272—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using bridge circuits of one-way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
Definitions
- the present invention relates to a humidity control device for adjusting the humidity of air.
- a so-called desiccant port and a humidity control device that combines a heat pump is known.
- the condenser of the heat pump is installed in the air passage for regeneration, and the evaporator of the heat pump is installed in the air passage for supplying air to the room.
- this humidity control device is operated to reduce the humidity of the supply air for ventilation at the desiccant port and supply it to the room, and to regenerate the desiccant low with the exhaust air for ventilation.
- outdoor air is taken into the humidity control device as air supply for ventilation.
- This outdoor air is dehumidified in the desiccant low and then flows into the air supply passage, exchanges heat with the refrigerant in the evaporator, is cooled, and is supplied to the room.
- indoor air is taken into the humidity control device as exhaust air for ventilation. This indoor air is heated by exchanging heat with the refrigerant in the condenser while flowing through the air passage for regeneration, and is then used for regeneration of desiccant trousers and discharged outside.
- the above-mentioned conventional humidity control system has a structure that considers only the dehumidification operation that dehumidifies the air supply to the room, so if it is used for the humidification operation that humidifies the air supply to the room, it has sufficient capacity. There was a problem that can not be obtained.
- the evaporator of the heat pump is installed in the air passage for air supply.
- the humidified air for air supply is cooled by the evaporator, and some of the moisture contained in the air condenses. Therefore, in the above humidity control device, when passing through the evaporator, the air for air supply is used. The amount of water contained in the water decreased, and sufficient humidification ability could not be obtained.
- the present invention has been made in view of such a point, and an object of the present invention is to obtain a sufficient humidifying capacity in a humidity control device including a refrigerant circuit. Disclosure of the invention
- the first solution taken by the present invention is an adsorption element (81, 82) having an adsorbent and bringing the adsorbent into contact with air, and a refrigerant circuit (100) for circulating a refrigerant to perform a refrigeration cycle.
- An adsorbing operation for adsorbing moisture in the first air to the adsorbing element (81, 82); and the adsorbing element (81, 82) using the second air heated by the refrigerant in the refrigerant circuit (100).
- the refrigerant circuit (100) includes a regenerative heat exchanger (102) for exchanging heat of the second air supplied to the adsorption element (81, 82) with the refrigerant, and a refrigerant for the air supplied to the room.
- a second solution taken by the present invention is the above-mentioned first solution, wherein the refrigerant circuit (100) includes one of the first heat exchanger (103) and the second heat exchanger (104) as an evaporator. Thus, it is possible to perform an operation in which the other is stopped.
- a third solution taken by the present invention is the above-mentioned first solution, wherein the refrigerant circuit (100) is provided with one of the first heat exchanger (103) and the second heat exchanger (104) as an evaporator.
- the refrigerant circuit (100) is provided with one of the first heat exchanger (103) and the second heat exchanger (104) as an evaporator.
- a fourth solution taken by the present invention is the first solution, wherein the refrigerant circuit
- (100) is an operation in which one of the first heat exchanger (103) and the second heat exchanger (104) is used as an evaporator and the other is stopped, and the first heat exchanger (103) and the second heat exchanger Of the first and second heat exchangers (103) and (104) as evaporators and the other as condensers or subcoolers. That can be configured It is.
- the refrigerant circuit (100) includes both the first heat exchanger (103) and the second heat exchanger (104) as evaporators.
- the first heat exchanger (103) and the second heat exchanger (104) as one evaporator and the other as a condenser or subcooler. It is.
- a sixth solution taken by the present invention is the method of the second, third, fourth or fifth solution, wherein the first air is supplied into the room and the second air is discharged outside the room.
- the first heat exchanger (103) of the circuit (100) is turned into an evaporator
- the second heat exchange of the refrigerant circuit (100) is performed when the second air is supplied to the room and the first air is discharged outside the room. It is configured to be able to operate the vessel (104) as an evaporator.
- a seventh solution taken by the present invention is an adsorption element (81, 82) having an adsorbent and bringing the adsorbent into contact with air, and a refrigerant circuit (100) for circulating a refrigerant to perform a refrigeration cycle.
- An adsorbing operation for adsorbing moisture in the first air to the adsorbing element (81, 82); and the adsorbing element (81, 82) using the second air heated by the refrigerant in the refrigerant circuit (100).
- Humidification operation that supplies the second air out of the first air and the second air that have passed through the adsorption element (81, 82) to the room and discharges the first air to the outside It is intended for simple humidity control equipment.
- the refrigerant circuit (100) exchanges heat with the refrigerant for the second air supplied to the adsorbing elements (81, 82) with a regenerative heat exchanger (102) that functions as a condenser, and discharges the air outside. And an exhaust-side heat exchanger (104) serving as an evaporator during the humidifying operation by exchanging heat with the refrigerant.
- An eighth solution taken by the present invention is the above-mentioned seventh solution, wherein the first air of the first air and the second air which have passed through the adsorption element (81, 82) is supplied to the room by supplying the first air to the room. While the dehumidifying operation for discharging air to the outside of the room is enabled, the refrigerant circuit (100) exchanges heat with the refrigerant for the air supplied to the room and makes the first heat exchanger (1) which serves as an evaporator during the dehumidifying operation. 03), and the exhaust-side heat exchanger (104) of the refrigerant circuit (100) constitutes a second heat exchanger (104).
- the refrigerant circuit (100) is provided with one of the first heat exchanger (103) and the second heat exchanger (104) as an evaporator.
- the refrigerant circuit (100) is connected to one of the first heat exchanger (103) and the second heat exchanger (104).
- the eleventh solution taken by the present invention is the eighth solution, wherein the refrigerant circuit (100) is connected to one of the first heat exchanger (103) and the second heat exchanger (104).
- An operation in which the other is stopped as an evaporator an operation in which both the first heat exchanger (103) and the second heat exchanger (104) are used as an evaporator, and an operation in which both the first heat exchanger (103) and the One of the two heat exchangers (104) can be operated as an evaporator and the other as a condenser or subcooler.
- the refrigerant circuit (100) evaporates both the first heat exchanger (103) and the second heat exchanger (104).
- the first heat exchanger (103) and the second heat exchanger (104) as one evaporator and the other as a condenser or subcooler. It is.
- a thirteenth solution of the present invention is the refrigerant circuit according to the third, fourth or fifth solution, wherein the first air is supplied into the room and the second air is discharged outside the room.
- the first heat exchanger (103) and the second heat exchanger (104) can be configured to be an evaporator.
- the first heat exchanger (103) and the second heat exchanger (104) of the circuit (100) are configured to be capable of operating as evaporators.
- a fifteenth solution taken by the present invention is the refrigerant circuit according to the third, fourth, or fifth solution, wherein the second air is supplied into the room and the first air is discharged outside the room.
- the first heat exchanger (103) and the second heat exchanger (104) of (100) can be operated to be an evaporator.
- the refrigerant is supplied when the second air is supplied into the room and the first air is discharged outside the room.
- the operation in which the first heat exchanger (103) and the second heat exchanger (104) of the circuit (100) are changed to an evaporator is performed. It is configured to be possible.
- the first circuit of the refrigerant circuit (100) is used.
- the heat exchanger (103) can be operated as an evaporator and the second heat exchanger (104) can be operated as a condenser or a subcooler.
- An eighteenth solution taken by the present invention is the first or the second solution, wherein the first air is supplied to the room and the second air is discharged outside the refrigerant circuit ( 100), the first heat exchanger (103) can be operated as an evaporator and the second heat exchanger (104) can be operated as a condenser or a subcooler.
- a nineteenth solution taken by the present invention is the fourth solution or the fifth solution, wherein the second air is supplied to the room and the first air is discharged outside the room.
- the refrigerant circuit (The first heat exchanger (103) of (100) can be operated as a condenser or a subcooler, and the second heat exchanger (104) can be operated as an evaporator.
- both the first heat exchanger (103) and the second heat exchanger (104) evaporate.
- the first heat exchanger (103) and the second heat exchanger (104) are connected in series with each other, and the first heat exchanger (103) is connected to the first heat exchanger (103).
- the operation of exchanging the refrigerant with air using only a part of the heat exchangers (103, 104) located downstream of the second heat exchanger (104) becomes possible.
- both the first heat exchanger (103) and the second heat exchanger (104) are used.
- the first heat exchanger (103) and the second heat exchanger (104) are connected in series with each other, and the first heat exchanger (103) is connected.
- the second heat exchanger (104), the heat exchanger (103, 104) located only on the downstream side can be used to perform an operation of exchanging the refrigerant with air using only a part of the heat exchanger (103, 104).
- a twenty-third solution taken by the present invention is the same as the third, fourth or fifth solution, wherein both the first heat exchanger (103) and the second heat exchanger (104) are used.
- the first heat exchanger (103) and the second heat exchanger (104) are connected in series with each other, and the first heat exchanger (103) Supply only a part of the refrigerant from the upstream heat exchanger (103, 104) to the downstream heat exchanger (103, 104) of the second heat exchanger (104) Operation that can be performed.
- both the first heat exchanger (103) and the second heat exchanger (104) are used.
- the first heat exchanger (103) and the second heat exchanger (104) are connected in series with each other, and the first heat exchanger (103) is connected.
- the first heat exchanger (103) is connected.
- the second heat exchanger (104) is connected.
- the outdoor air when supplying the second air to the room and discharging the first air to the outside, the outdoor air is used as the second air. It is configured to be able to take in and send it to the regenerative heat exchanger (102), as well as take in room air as the first air and send it to the adsorption elements (81, 82).
- the outdoor air when supplying the second air to the room and discharging the first air to the outside, the outdoor air is supplied to the second solution. It is configured to be able to take in as air and send it to the regenerative heat exchanger (102), as well as take in room air as primary air and send it to the adsorption elements (81, 82).
- the outdoor air when supplying the first air to the room and discharging the second air to the outside, the outdoor air is used as the first air. It is configured to be able to take in and send it to the adsorption element (81, 82) and to take in room air as the second air and send it to the regenerative heat exchanger (102).
- the outdoor air when supplying the first air to the room and discharging the second air to the outside, the outdoor air is used as the first air. It is configured to be able to take in air and send it to the adsorption element (81, 82), as well as take in room air as the second air and send it to the regenerative heat exchanger (102). 03 00944
- the adsorption operation and the regeneration operation are performed in the humidity control device.
- the first air comes into contact with the adsorbent, and the water vapor in the first air is adsorbed by the adsorbent.
- the heated second air comes into contact with the adsorbent, and water vapor is desorbed from the adsorbent. That is, the adsorption element (81, 82) is regenerated. The water vapor desorbed from the adsorbent is provided to the second air.
- the humidity control device of this solution supplies one of the first air and the second air coming out of the adsorption element (81, 82) to the room and discharges the other to the outside. That is, when the first air dehumidified by the adsorption elements (81, 82) is supplied to the room, the second air used for the regeneration of the adsorption elements (81, 82) is discharged outside the room. When supplying the second air humidified by the adsorption elements (81, 82) to the room, the first air deprived of the moisture by the adsorption elements (81, 82) is discharged outside the room.
- the refrigerant circuit (100) of the humidity control device includes a regenerative heat exchanger (102), a first heat exchanger (103), and a second heat exchanger (104).
- the regenerative heat exchanger (102) always serves as a condenser, and at least one of the first heat exchanger (103) and the second heat exchanger (104) serves as an evaporator.
- the second air is heated by heat exchange with the refrigerant.
- the second air heated by the regenerative heat exchanger (102) is sent to the adsorption elements (81, 82) during the regeneration operation.
- the first heat exchanger (103) When the first heat exchanger (103) is an evaporator, the first heat exchanger (103) exchanges heat with the first air or the second air supplied to the room to evaporate the refrigerant.
- the second heat exchanger (104) when the second heat exchanger (104) becomes an evaporator, the second heat exchanger (104) exchanges heat with the first air or the second air discharged to the outside to evaporate the refrigerant. I do.
- the refrigerant circuit (100) includes an operation in which the first heat exchanger (103) serves as an evaporator and no refrigerant is supplied to the second heat exchanger (104); (104) is configured to be an evaporator to perform an operation in which no refrigerant is supplied to the first heat exchanger (103).
- the refrigerant circuit (100) includes an operation in which the first heat exchanger (103) becomes an evaporator and no refrigerant is supplied to the second heat exchanger (104);
- the refrigerant circuit (100) of the present solution is configured such that both the first heat exchanger (103) and the second heat exchanger (104) can be operated as evaporators.
- the refrigerant circuit (100) includes an operation in which the first heat exchanger (103) serves as an evaporator and no refrigerant is supplied to the second heat exchanger (104); (104) is configured to be an evaporator to perform an operation in which no refrigerant is supplied to the first heat exchanger (103).
- the refrigerant circuit (100) of the present solution is configured so that both the first heat exchanger (103) and the second heat exchanger (104) can be operated as evaporators.
- the refrigerant circuit (100) of the present solution comprises an operation in which the first heat exchanger (103) becomes an evaporator and the second heat exchanger (104) becomes a condenser or a subcooler.
- the heat exchanger (104) is configured to be an evaporator and the first heat exchanger (103) to be a condenser or a subcooler.
- the first heat exchanger (103) and the second heat exchanger (104) become condensers when the supplied refrigerant contains high-pressure gas refrigerant, and supercool when the supplied refrigerant is only high-pressure liquid refrigerant. Container.
- the refrigerant circuit (100) is configured to perform an operation in which both the first heat exchanger (103) and the second heat exchanger (104) become evaporators.
- the refrigerant circuit (100) of the present solution comprises an operation in which the first heat exchanger (103) becomes an evaporator and the second heat exchanger (104) becomes a condenser or a subcooler.
- the first heat exchanger (103) becomes an evaporator and the first heat exchanger (103) becomes a condenser or a subcooler.
- the first heat exchanger (103) and the second heat exchanger (104) become condensers when the supplied refrigerant contains high-pressure gas refrigerant, and supercool when the supplied refrigerant is only high-pressure liquid refrigerant.
- Container
- the refrigerant circuit (100 ) when supplying the first air dehumidified by the adsorption operation to the room and discharging the second air humidified by the regeneration operation to the outside, the refrigerant circuit (100 ),
- the first heat exchanger (103) can be operated as an evaporator. During this operation, in the first heat exchanger (103), the first air supplied into the room is cooled. That is, the first air is dehumidified by the adsorption elements (81, 82), cooled by the first heat exchanger (103), and then supplied to the room.
- the second humidified by the regeneration operation is used.
- the second heat exchanger (104) of the refrigerant circuit (100) As an evaporator.
- the refrigerant absorbs heat from the first air discharged outside and evaporates the refrigerant.
- heat is recovered from the first air discharged outside in the second heat exchanger (104), and the recovered heat is used for heating the second air in the regenerative heat exchanger (102).
- the adsorption operation and the regeneration operation are performed in the humidity control device.
- the first air comes into contact with the adsorbent, and the water vapor in the first air is adsorbed by the adsorbent.
- the heated second air comes into contact with the adsorbent, and water vapor is desorbed from the adsorbent. That is, the adsorption elements (81, 82) are regenerated. The water vapor desorbed from the adsorbent is provided to the second air.
- the humidity control apparatus of the present solution performs at least a humidification operation.
- the second air humidified by the adsorption element (81, 82) is supplied to the room, and the first air deprived of the moisture by the adsorption element (81, 82) is discharged outside the room.
- the refrigerant circuit (100) of the humidity control device is provided with a regenerative heat exchanger (102) and an exhaust-side heat exchanger (104).
- the regenerative heat exchanger (102) becomes a condenser and the exhaust heat exchanger (104) becomes an evaporator. That is, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant.
- the second air heated by the regenerative heat exchanger (102) is sent to the adsorption element (81, 82) during the regenerating operation.
- the refrigerant evaporates by exchanging heat with the first air discharged outside the room.
- the humidity control apparatus not only the humidifying operation but also the dehumidifying operation can be performed.
- the first air dehumidified by the adsorption element (81, 82) is supplied to the room, and the second air used for the regeneration of the adsorption element (81, 82) is discharged outside the room.
- the refrigerant circuit (100) of the humidity control device is provided with a first heat exchanger (103) in addition to the regenerative heat exchanger (102) and the exhaust-side heat exchanger (104).
- the exhaust-side heat exchanger (104) constitutes a second heat exchanger (104).
- the regenerative heat exchanger (102) becomes a condenser
- the first heat exchanger (103) becomes an evaporator.
- the second air exchanges heat with the refrigerant. Heated by The second air heated in the regenerative heat exchanger (102) is sent to the adsorption elements (81, 82) during the regenerating operation.
- the first heat exchanger (103) exchanges heat with the first air supplied indoors to evaporate the refrigerant.
- the refrigerant circuit (100) includes an operation in which the first heat exchanger (103) becomes an evaporator and no medium is supplied to the second heat exchanger (104);
- the device (104) becomes an evaporator, and is configured to perform an operation in which the refrigerant is not supplied to the first heat exchanger (103).
- the refrigerant circuit (100) includes an operation in which the first heat exchanger (103) becomes an evaporator and no refrigerant is supplied to the second heat exchanger (104);
- the heat exchanger (104) becomes an evaporator and is configured to perform an operation in which the refrigerant is not supplied to the first heat exchanger (103).
- the refrigerant circuit (100) of the present solution is configured so that both the first heat exchanger (103) and the second heat exchanger (104) can be operated as evaporators.
- the refrigerant circuit (100) in the refrigerant circuit (100), an operation in which the first heat exchanger (103) serves as an evaporator and no refrigerant is supplied to the second heat exchanger (104);
- the heat exchanger (104) becomes an evaporator and is configured to perform an operation in which the refrigerant is not supplied to the first heat exchanger (103).
- the refrigerant circuit (100) of the present solution is configured so that both the first heat exchanger (103) and the second heat exchanger (104) can be operated as evaporators.
- the refrigerant circuit (100) of the present solution comprises an operation in which the first heat exchanger (103) becomes an evaporator and the second heat exchanger (104) becomes a condenser or a subcooler.
- the first heat exchanger (103) is configured to perform an operation in which the exchanger (104) becomes an evaporator and the first heat exchanger (103) becomes a condenser or a subcooler.
- the first heat exchanger (103) and the second heat exchanger (104) become condensers when the supplied refrigerant contains a high-pressure gas refrigerant, and operate when only the supplied refrigerant is a high-pressure liquid refrigerant. It becomes a cooler.
- the refrigerant circuit (100) is configured so that both the first heat exchanger (103) and the second heat exchanger (104) can operate as an evaporator.
- the refrigerant circuit (100) of the present solution comprises an operation in which the first heat exchanger (103) becomes an evaporator and the second heat exchanger (104) becomes a condenser or a subcooler.
- the heat exchanger (104) becomes an evaporator and the first heat exchanger (103) becomes a condenser or a subcooler. It is configured as follows.
- the first heat exchanger (103) and the second heat exchanger (104) serve as condensers when the supplied refrigerant contains a high-pressure gas refrigerant, and operate when the supplied refrigerant is only a high-pressure liquid refrigerant. It becomes a cooler.
- the humidity control apparatus when the first air dehumidified by the adsorption operation is supplied to the room and the second air humidified by the regeneration operation is discharged outside the room, It becomes possible to operate the first heat exchanger (103) and the second heat exchanger (104) of the refrigerant circuit (100) as evaporators.
- the first air supplied to the room is cooled in the first heat exchanger (103), and the refrigerant absorbs heat from the second air discharged outside the room in the second heat exchanger (104). That is, the first air is dehumidified by the adsorption elements (81, 82), cooled by the first heat exchanger (103), and then supplied to the room.
- the second heat exchanger (104) heat is recovered from the second air discharged outside the room, and the recovered heat is used for heating the second air in the regenerative heat exchanger (102). .
- the humidity control apparatus when supplying the second air humidified by the regeneration operation to the room and discharging the first air dehumidified by the adsorption operation to the outside, It becomes possible to operate the first heat exchanger (103) and the second heat exchanger (104) of the refrigerant circuit (100) as evaporators.
- the second heat supplied to the room is cooled in the first heat exchanger (103), and the refrigerant absorbs heat from the first air discharged to the outside in the second heat exchanger (104). That is, the second air is humidified by the adsorption elements (81, 82), cooled by the first heat exchanger (103), and then supplied to the room.
- the second heat exchanger (104) heat is recovered from the first air discharged outside the room, and the recovered heat is used for heating the second air in the regenerative heat exchanger (102). .
- the humidity control apparatus when the first air dehumidified by the adsorption operation is supplied to the room and the second air humidified by the regeneration operation is discharged outside the room,
- the first heat exchanger (103) of the refrigerant circuit (100) as an evaporator
- the second heat exchanger (104) as a condenser or a subcooler.
- the first heat exchanger (103) cools the first air supplied to the room
- the second heat exchanger (104) radiates the refrigerant to the second air discharged outside the room. I do.
- the first air is dehumidified by the adsorption elements (81, 82), cooled by the first heat exchanger (103), and then supplied indoors.
- the refrigerant in the refrigerant circuit (100) is supplied to the regenerative heat exchanger (1). 02) In addition to the second heat exchanger (104), heat is released to the second air.
- the humidity control apparatus when supplying the second air humidified by the regeneration operation to the room and discharging the first air dehumidified by the adsorption operation to the outside,
- the first heat exchanger (103) of the refrigerant circuit (100) as a condenser or a subcooler
- the second heat exchanger (104) as an evaporator.
- the first heat exchanger (103) heats the second air supplied to the room
- the second heat exchanger (104) absorbs heat from the first air discharged to the outside of the room to generate refrigerant. Evaporate.
- the second air is humidified by the adsorption elements (81, 82), heated by the first heat exchanger (103), and then supplied indoors.
- the second heat exchanger (104) heat is recovered from the first air discharged outside the room, and the recovered heat is used for heating the second air in the regenerative heat exchanger (102). .
- the refrigerant circuit (100) is configured such that both the first heat exchanger (103) and the second heat exchanger (104) evaporate.
- the first heat exchanger (103) and the second heat exchanger (104) are configured to be connected in series to each other. For example, if the first heat exchanger (103) is upstream and the second heat exchanger (104) is downstream, the refrigerant exchanges heat with air in the first heat exchanger (103), and then 2Sent to the heat exchanger (104).
- the refrigerant circuit (100) of the above-mentioned twenty-first and twenty-second solving means is located on the downstream side of the first heat exchanger (103) and the second heat exchanger (104) which are in series with each other.
- the operation of exchanging heat between the refrigerant and the air using only a part of the heat exchangers (103, 104) is enabled. During this operation, the amount of heat absorbed by the refrigerant in the heat exchangers (103, 104) is smaller than when the refrigerant exchanges heat with air using the entire heat exchanger (103, 104) located downstream. Decrease.
- the refrigerant circuit (100) of the above-mentioned twenty-third and twenty-fourth solution means is located on the downstream side of the first heat exchanger (103) and the second heat exchanger (104) which are in series with each other.
- the heat exchanger (103, 104) is configured to be able to supply only a part of the refrigerant that has flown out of the heat exchanger (103, 104) located upstream of the heat exchanger (103, 104). During this operation, the amount of heat absorbed by the refrigerant in the heat exchangers (103, 104) decreases as compared with the case where all the refrigerant is supplied to the heat exchangers (103, 104) located downstream.
- the outdoor air is taken into the humidity control device as the second air.
- the second air composed of outdoor air is heated by the regenerative heat exchanger (102), humidified by the adsorption elements (81, 82), and supplied to the room.
- room air is taken into the humidity control device as the first air.
- the first air which is composed of indoor air, is discharged outside the room after moisture is deprived by the adsorption elements (81, 82).
- outdoor air is taken in as first air.
- the first air composed of outdoor air is supplied into the room after being dehumidified by the adsorption elements (81, 82).
- the room air is taken into the humidity control device as the second air.
- the second air composed of room air is heated by the regenerative heat exchanger (102), and is further used for the regeneration of the adsorption elements (81, 82) before being discharged outside the room.
- the humidity control apparatus In the humidity control apparatus according to the present invention, during the operation of supplying the humidified second air into the room and discharging the dehydrated first air to the outside of the room, the refrigerant in the heat exchanger (104) serving as an evaporator is used. With the first air. Therefore, the humidified second air supplied into the room is cooled by heat exchange with the refrigerant, and it is possible to prevent the water vapor in the second air from being condensed and lost. Therefore, according to the present invention, the humidifying performance of the humidity control apparatus capable of supplying the humidified second air to the room can be maintained at a high level.
- a humidity control apparatus using a mouth-to-mouth adsorption element has been known.
- a dehumidifying operation for supplying dehumidified air to a room and a humidifying operation for supplying humidified air to a room are switched and performed.
- the suction element is housed in a casing and is driven to rotate around its central axis.
- a part of the adsorption side air passes, and the other part of the adsorption element passes the regeneration side air heated by the electric heater.
- the adsorption-side air whose moisture has been deprived by the adsorption element is supplied to the room. At this time, the adsorption element is regenerated by the heated regeneration air, and the regeneration air that has passed through the adsorption element is discharged outside the room.
- humidification operation In, the regeneration-side air provided with the moisture desorbed from the adsorption element is supplied to the room. At this time, the adsorption side air whose moisture has been deprived by the adsorption element is discharged outside the room.
- an electric heater is used as a heat source for heating the regeneration side air
- a heat pump may be used as a heat source instead.
- a refrigerant circuit constituting a heat pump is provided with two heat exchangers, one of which serves as an evaporator and the other serves as a condenser.
- the heat exchanger that functions as a condenser the air on the regeneration side is heated by exchanging heat with the refrigerant.
- the heat exchanger that becomes the evaporator the air on the adsorption side after passing through the adsorption element exchanges heat with the refrigerant.
- the first heat exchanger (103) capable of exchanging the air going indoors with the refrigerant, and the air exchanging the air going outdoors with the refrigerant.
- a second heat exchanger (104) capable of being provided is provided in the refrigerant circuit (100), and at least one of the first heat exchanger (103) and the second heat exchanger (104) is an evaporator. For this reason, it becomes possible to install the first heat exchanger (103) and the second heat exchanger (104) downstream of the point where the first air or the second air is switched indoors or outdoors. .
- the restrictions on the layout of the components of the humidity control device can be obtained. Can be reduced. Then, the problems caused by the restriction of the layout of the devices, that is, the problems that occur when the degree of freedom of the design of the humidity control device is impaired or the air passage becomes complicated and the size of the humidity control device becomes large, can be avoided.
- the refrigerant circuit (100) is configured to perform various operations. Therefore, according to these solutions, the refrigerant circuit By enabling various operations on the road (100), the function of the humidity control device can be increased.
- the first air can be dehumidified and further cooled, and then supplied to the room. Therefore, if this operation is performed, not only indoor humidity control but also cooling can be performed. Further, in the present solution, it is possible to perform an operation in which heat recovered from the exhausted first air is used for heating the second air in the regenerative heat exchanger (102). Therefore, if this operation is performed, the internal energy of the exhausted first air can be effectively used for the operation of the humidity control device.
- the first air is dehumidified and further cooled and then supplied to the room, and at the same time, the heat recovered from the exhausted second air is recovered by the regenerative heat exchanger (102). It is possible to recycle the second air for heating. Therefore, if this operation is performed, not only the indoor humidity adjustment but also the cooling can be performed, and the internal energy of the exhausted second air can be effectively used for the operation of the humidity control device.
- the second air is humidified and further cooled and then supplied to the room, and at the same time, the heat recovered from the exhausted first air is recovered by the regenerative heat exchanger (102).
- the operation used for heating the second air is possible. Therefore, if this operation is performed, an operation suitable for performing only humidification without increasing the indoor temperature can be performed. Further, the internal energy of the exhausted first air is used for the operation of the humidity control device. It can be used effectively.
- the first air is dehumidified and further cooled and then supplied to the room, and at the same time, the regenerative heat exchanger (102) and the second heat exchanger (104)
- operation in which the refrigerant radiates heat to the second air is possible. Therefore, if this operation is performed, not only indoor humidity control but also cooling can be performed.
- the second air is humidified and further heated and then supplied to the room, and at the same time, the heat recovered from the exhausted first air is recovered by the regenerative heat exchanger. And operation for heating the second air in the first heat exchanger (103) is possible. You. Therefore, by performing this operation, not only indoor humidity control but also heating can be performed, and the internal energy of the exhausted first air can be effectively used for the operation of the humidity control device.
- FIG. 1 is an exploded perspective view showing a configuration of a humidity control apparatus according to Embodiment 1 and a first operation during a dehumidification operation.
- FIG. 2 is an exploded perspective view showing a second operation during the dehumidifying operation in the humidity control apparatus according to the first embodiment.
- FIG. 3 is an exploded perspective view showing a first operation during a humidification operation in the humidity control apparatus according to the first embodiment.
- FIG. 4 is an exploded perspective view showing a second operation during the humidification operation in the humidity control apparatus according to the first embodiment.
- FIG. 5 is a schematic configuration diagram illustrating a main part of the humidity control apparatus according to the first embodiment.
- FIG. 6 is a schematic perspective view showing the adsorption element of the humidity control apparatus according to the first embodiment.
- FIG. 7 is a piping diagram illustrating a configuration of the refrigerant circuit according to the first embodiment.
- FIG. 8 is an explanatory view conceptually showing the operation of the humidity control apparatus according to Embodiments 1, 2, and 3.
- FIG. 9 is a piping diagram illustrating a configuration of a refrigerant circuit according to the second embodiment.
- FIG. 10 is an explanatory diagram conceptually showing the operation of the humidity control apparatus according to the second, third, and fourth embodiments.
- FIG. 11 is a piping diagram illustrating a configuration of a refrigerant circuit according to the third embodiment.
- FIG. 12 is an explanatory diagram conceptually showing the operation of the humidity control apparatus according to the third embodiment.
- FIG. 13 is a piping diagram illustrating a configuration of a refrigerant circuit according to the fourth embodiment.
- FIG. 14 is an explanatory diagram conceptually showing the operation of the humidity control apparatus according to the fourth embodiment.
- FIG. 15 is a piping diagram illustrating the configuration of the refrigerant circuit according to the fifth embodiment.
- FIG. 16 is an explanatory diagram conceptually showing the operation of the humidity control apparatus according to the fifth embodiment.
- FIG. 17 is an explanatory diagram conceptually showing the operation of the humidity control apparatus according to the fifth embodiment.
- FIG. 18 is a Mollier diagram (pressure-evening Ruby diagram) showing a refrigeration cycle performed in the refrigerant circuit of the humidity control apparatus according to the fifth embodiment.
- FIG. 19 is a Mollier diagram (pressure-Yen Ruby diagram) showing a refrigeration cycle performed in the refrigerant circuit of the humidity control apparatus according to the second modification of the fifth embodiment.
- FIG. 20 is an exploded perspective view showing a first operation during a dehumidifying circulation operation in the humidity control apparatus according to the first modified example of the other embodiment.
- FIG. 21 is an exploded perspective view showing a second operation during the dehumidifying circulation operation in the humidity control apparatus according to the first modification of the other embodiment.
- FIG. 22 is an exploded perspective view showing a first operation during a humidification circulation operation in the humidity control apparatus according to the first modified example of the other embodiment.
- FIG. 23 is an exploded perspective view showing a second operation during the humidification circulation operation in the humidity control apparatus according to the first modification of the other embodiment.
- FIG. 24 conceptually illustrates the operation of the humidity control apparatus according to the first modification of the other embodiment.
- FIG. 25 is an explanatory view conceptually showing the operation of the humidity control apparatus according to the first modification of the other embodiment.
- FIG. 26 is an exploded perspective view showing a configuration of a humidity control apparatus according to a second modification of the other embodiment.
- FIG. 27 is a schematic configuration diagram illustrating a main part of a humidity control apparatus according to a second modification of the other embodiment.
- FIG. 28 is an exploded perspective view showing a first operation during a humidifying operation in a humidity control apparatus according to a fourth modification of the other embodiment.
- FIG. 29 is an exploded perspective view showing a second operation during a humidifying operation in the humidity control apparatus according to the fourth modification of the other embodiment.
- the humidity control apparatus is configured to switch between a dehumidifying operation in which dehumidified air is supplied indoors and a humidifying operation in which humidified air is supplied indoors.
- the humidity control device includes a refrigerant circuit (100) and two adsorption elements (81, 82), and is configured to perform a so-called batch-type operation.
- the configuration of the humidity control apparatus according to the present embodiment will be described with reference to FIGS. 1, 5, 6, and 7.
- the humidity control device has a slightly flat rectangular parallelepiped casing (10).
- the casing (10) contains two adsorption elements (81, 82) and a refrigerant circuit (100).
- the refrigerant circuit (100) includes a regenerative heat exchanger (102), a first heat exchanger (103), and a second heat exchanger (104). The details of the refrigerant circuit (100) will be described later.
- the adsorption element (81, 82) is configured by alternately stacking flat plate members (83) and corrugated corrugated members (84).
- the flat plate member (83) is formed in a rectangular shape in which the length L i of the long side is 2.5 times the length L 2 of the short side.
- L It is 2.5.
- the numerical values shown here are examples.
- the corrugated sheet members (84) are stacked so that the ridge directions of the adjacent corrugated sheet members (84) are shifted from each other by 90 °.
- the adsorption elements (81, 82) are formed in a rectangular parallelepiped shape or a quadrangular prism shape as a whole.
- the humidity control side passage (85) and the cooling side passage (86) form the flat plate member (83). It is divided and formed alternately.
- a humidity control passage (85) is opened on the long side surface of the flat plate member (83), and the cooling side passage (86) is opened on the short side surface of the flat plate member (83). ) Is open.
- the front and rear end surfaces in the same figure constitute a closed surface in which neither the humidity control side passage (85) nor the cooling side passage (86) is open. .
- the surface of the flat plate member (83) facing the humidity control side passage (85) and the surface of the corrugated plate member (84) provided in the humidity control side passage (85) are:
- An adsorbent for absorbing water vapor is applied.
- this type of adsorbent include silica gel, zeolite, and ion exchange resin.
- an outdoor panel (11) is provided on the most front side, and an indoor panel (12) is provided on the farthest side.
- the outdoor panel (11) has an outdoor suction port (13) formed near its left end, and an outdoor air outlet (16) formed near its right end.
- the indoor-side panel (12) has an indoor-side outlet (14) near its left end and an indoor-side suction port (15) near its right end.
- the first partition plate is arranged in order from the near side to the far side.
- the interior space of the casing (10) is partitioned forward and backward by the first and second partition plates (20, 30).
- the space between the outdoor panel (11) and the first partition (20) is divided into an upper outdoor outdoor channel (41) and a lower outdoor lower channel (42).
- Outdoor upper channel (4 1) is connected to the outdoor space by the outdoor outlet (16).
- the outdoor lower flow path (42) is communicated with the outdoor space by the outdoor suction port (13).
- An exhaust fan (96) is installed near the right end of the space between the outdoor panel (11) and the first partition (20).
- a second heat exchanger (104) is installed in the outdoor upper flow path (41).
- the second heat exchanger (104) is a so-called cross-fin type fin-and-tube heat exchanger.
- the air and the refrigerant circuit (41) flow through the upper outdoor passage (41) toward the exhaust fan (96). 100) to exchange heat with the refrigerant. That is, the second heat exchanger (104) is for exchanging heat between the air discharged outside and the coolant, and constitutes an exhaust-side heat exchanger.
- the first partition (20) has a first right opening (21), a first left opening (22), a first upper right opening (23), a first lower right opening (24), a first upper left opening (25). , And a first lower left opening (26) are formed.
- Each of these openings (21, 22 ") is configured to be freely openable and closable with a shirt closure.
- the first right opening (21) and the first left opening (22) are vertically long rectangular openings.
- the first right opening (21) is provided near the right end of the first partition (20).
- the first left opening (22) is provided near the left end of the first partition (20).
- the first upper right opening (23), the first lower right opening (24), the first upper left opening (25), and the first lower left opening (26) are horizontally long rectangular openings.
- the first upper right opening (23) is provided on the upper part of the first partition plate (20), to the left of the first right opening (21).
- the first lower right opening (24) is provided in the lower part of the first partition plate (20), to the left of the first right opening (21).
- the first upper left opening (25) is provided on the upper part of the first partition plate (20) to the right of the first left opening (22).
- the first lower left opening (26) is provided to the right of the first left opening (22) below the first partition plate (20).
- Two adsorption elements (81, 82) are installed between the first partition plate (20) and the second partition plate (30). These adsorption elements (81, 82) are arranged side by side at predetermined intervals. Specifically, a first suction element (81) is provided on the right side, and a second suction element (82) is provided on the left side.
- the laminating direction of the flat plate member (83) and the corrugated plate member (84) is the longitudinal direction of the casing (10) (from front to back in FIG. 1). And the stacking directions of the flat plate members (83) and the like are parallel to each other. Furthermore, the left and right sides of each adsorption element (81, 82) are the side plate of the casing (10), the upper and lower surfaces are the top plate and bottom plate of the casing (10), and the front and rear end surfaces are the outdoor panel (11). ) And the indoor side panel (12).
- cooling-side passages (86) are opened on the left and right side surfaces.
- one side of the first adsorption element (81) where the cooling-side passage (86) opens and one side of the second adsorption element (82) where the cooling-side passage (86) opens face each other.
- the space between the first partition plate (20) and the second partition plate (30) consists of the right channel (51), the left channel (52), the upper right channel (53), the lower right channel (54), and the left channel. It is divided into an upper channel (55), a lower left channel (56), and a central channel (57).
- the right flow path (51) is formed on the right side of the first adsorption element (81), and communicates with the cooling-side passage (86) of the first adsorption element (81).
- the left flow path (52) is formed on the left side of the second adsorption element (82), and communicates with the cooling-side passage (86) of the second adsorption element (82).
- the upper right channel (53) is formed above the first adsorption element (81) and communicates with the humidity control side passageway (85) of the first adsorption element (81).
- the lower right flow path (54) is formed below the first adsorption element (81) and communicates with the humidity control side passageway (85) of the first adsorption element (81).
- the upper left flow path (55) is formed above the second adsorption element (82), and communicates with the humidity control side passageway (85) of the second adsorption element (82).
- the lower left flow path (56) is formed below the second adsorption element (82), and communicates with the humidity control passage (85) of the second adsorption element (82).
- the central flow path (57) is formed between the first adsorption element (81) and the second adsorption element (82), and communicates with the cooling-side passage (86) of both adsorption elements (81, 82). .
- the cross section of the channel shown in Figs. 1 and 5 has an octagonal shape.
- the regenerative heat exchanger (102) is a so-called cross-fin type fin 'and' tube heat exchanger that exchanges heat between the air flowing through the central flow path (57) and the refrigerant in the refrigerant circuit (100). It is configured.
- This regenerative heat exchanger (102) is arranged in the central channel (57). That is, the regenerative heat exchanger (102) is installed between the first adsorbing element (81) and the second adsorbing element (82) arranged on the left and right. Furthermore, the regenerative heat exchanger (102) Is provided so as to partition the central flow path (57) to the left and right in a state of being set up almost vertically.
- the right shirt (61) is provided between the first adsorption element (81) and the regenerative heat exchanger (102).
- the right-side shirt (61) partitions between the right side of the regenerative heat exchanger (102) in the central flow path (57) and the lower right flow path (54), and is configured to be openable and closable. I have.
- a shirt (62) on the left side is provided between the second adsorption element (82) and the regenerative heat exchanger (102).
- the left-side chatter (62) partitions between the left side of the regenerative heat exchanger (102) in the central flow path (57) and the lower left flow path (56), and is configured to be openable and closable. .
- the flow path (51, 52 ') between (20) and the second partition (30) is defined by the opening and closing shirt provided at the entrance (21, 22,-) of the first partition (20).
- the mode is switched between the communication state and the cutoff state. Specifically, when the first right opening (21) is in the open state, the right flow path (51) and the outdoor lower flow path (42) communicate with each other. When the first left opening (22) is in the open state, the left flow path (52) and the outdoor lower flow path (42) communicate with each other. When the first upper right opening (23) is in an open state, the upper right flow path (53) and the outdoor upper flow path (41) communicate with each other. When the first right port (24) is in an open state, the lower right channel (54) and the outdoor lower channel (42) communicate.
- the second partition plate (30) has a second right opening (31), a second left opening (32), a second upper right opening (33), a second lower right opening (34), and a second upper left opening (35). , And a second lower left opening (36) are formed.
- Each of these openings (31, 32 ") is configured to be openable and closable, with an opening and closing shirt.
- the second right opening (31) and the second left opening (32) are vertically long rectangular openings.
- the second right opening (31) is provided near the right end of the second partition (30).
- the second left opening (32) is provided near the left end of the second partition (30).
- the second upper right opening (33), the second lower right opening (34), the second upper left opening (35), and the second lower left opening (36) are horizontally long rectangular openings.
- the second upper right opening (33) is located above the second divider (30).
- the second lower right opening (34) is provided below the second partition plate (30) and to the left of the second right opening (31).
- the second upper left opening (35) is provided on the upper part of the second partition plate (30), right next to the second left opening (32).
- the second lower left opening (36) is provided to the right of the second left opening (32) below the second partition plate (30).
- the space between the indoor panel (12) and the second partition plate (30) is divided into an upper indoor-side upper flow path (46) and a lower indoor-side lower flow path (47).
- the indoor-side upper flow path (46) is communicated with the indoor space by the indoor-side outlet (14).
- the indoor lower flow path (47) is communicated with the indoor space by the indoor suction port (15).
- An air supply fan (95) is installed near the left end of the space between the indoor side panel (12) and the second partition (30).
- a first heat exchanger (103) is installed in the indoor upper flow path (46).
- the first heat exchanger (103) is a so-called cross-fin type fin-and-tube heat exchanger.
- the first heat exchanger (103) is a fin-and-tube heat exchanger. It is configured to exchange heat with (100) refrigerant. That is, the first heat exchanger (103) is for exchanging heat between the air supplied into the room and the coolant.
- the flow path between the first partition plate (20) and the second partition plate (30) and the flow path between the second partition plate (30) and the outdoor panel (11) are defined by the second partition plate (30).
- the open / closed shutter provided at the opening of () switches between the open and closed states. Specifically, when the second right opening (31) is in an open state, the right flow path (51) and the indoor lower flow path (47) communicate with each other. When the second left opening (32) is in the open state, the left flow path (52) communicates with the indoor lower flow path (47). When the second upper right opening (33) is in an open state, the upper right flow path (53) communicates with the indoor upper flow path (46).
- the lower right flow path (54) communicates with the indoor lower flow path (47).
- the upper left flow path (55) and the indoor upper flow path (46) communicate with each other.
- the second lower left opening (36) is in the open state, the lower left flow path (56) communicates with the indoor lower flow path (47).
- the refrigerant circuit (100) is a closed circuit filled with refrigerant.
- the refrigerant circuit (100) includes a compressor (101), a regenerative heat exchanger (102), and a first heat exchanger (10 3), a second heat exchanger (104), a receiver (105), a four-way switching valve (120), and an electric expansion valve (110) are provided.
- a vapor compression refrigeration cycle is performed by circulating the refrigerant.
- the discharge side of the compressor (101) is connected to one end of the regenerative heat exchanger (102).
- the other end of the regenerative heat exchanger (102) is connected to one end of an electric expansion valve (110) via a receiver (105).
- the other end of the electric expansion valve (110) is connected to the first port (121) of the four-way switching valve (120).
- the four-way switching valve (120) has a second port (122) connected to one end of the second heat exchanger (104), and a fourth port (124) connected to one end of the first heat exchanger (103). It is connected to the.
- the third port (123) of the four-way switching valve (120) is sealed.
- the other end of the first heat exchanger (103) and the other end of the second heat exchanger (104) are connected to the suction side of the compressor (101).
- the four-way switching valve (120) has a state in which the first port (121) and the second port (122) communicate with each other and the third port (123) and the fourth port (124) communicate with each other. (121) and the fourth port (124) communicate with each other, and the state is switched to a state where the second port (122) and the third port (123) communicate with each other. As described above, the third port (123) of the four-way switching valve (120) is closed. That is, in the refrigerant circuit (100) of the present embodiment, the four-way switching valve (120) is used as a three-way valve. Therefore, in the refrigerant circuit (100), a three-way valve may be used instead of the four-way switching valve (120).
- This humidity control device switches between a dehumidifying operation and a humidifying operation. Further, the humidity control device performs the dehumidifying operation and the humidifying operation by alternately repeating the first operation and the second operation.
- the regenerative heat exchanger (102) becomes a condenser
- the first heat exchanger (103) becomes an evaporator
- the second heat exchanger (104) becomes It is dormant. The operation of the refrigerant circuit (100) will be described later.
- an adsorption operation for the first adsorption element (81) and a reproduction operation for the second adsorption element (82) are performed. That is, in the first operation, the air is dehumidified by the first adsorption element (81), and at the same time, the adsorbent of the second adsorption element (82) is regenerated.
- the first lower right opening (24) and the first upper left opening (25) are in communication with each other, and the remaining openings (21, 22, 23, 26) Is shut off.
- the lower outside channel (42) and the lower right channel (54) are communicated by the first lower right opening (24), and the upper left channel (55) is connected to the chamber by the first upper left opening (25).
- the outside upper channel (41) is communicated with.
- the second right opening (31) and the second upper right opening (33) are in communication with each other, and the remaining openings (32, 34, 35, 36) are closed.
- the indoor lower flow path (47) and the right flow path (51) are communicated by the second right opening (31), and the upper right flow path (53) is connected to the indoor flow by the second upper right opening (33).
- the upper flow path (46) is communicated.
- the shirt on the right side (61) is closed, and the shirt on the left side (62) is open.
- the left part of the regenerative heat exchanger (102) in the central flow path (57) and the lower left flow path (56) are communicated via the left shirt (62).
- the first air taken into the casing (10) flows into the lower right channel (54) from the outdoor lower channel (42) through the first lower right opening (24).
- the second air taken into the casing (10) flows into the right flow path (51) from the indoor lower flow path (47) through the second right opening (31).
- the first air in the lower right flow path (54) flows into the humidity control side passage (85) of the first adsorption element (81). While flowing through the humidity control side passage (85), the water vapor contained in the first air is adsorbed by the adsorbent.
- the first air dehumidified by the first adsorption element (81) flows into the upper right channel (53).
- the second air in the right flow path (51) flows into the cooling-side passage (86) of the first adsorption element (81). While flowing through the cooling-side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity-controlling passage (85).
- the second air flows through the cooling-side passage (86) as a cooling fluid.
- the second air which has lost the heat of adsorption, flows into the central channel (57) and passes through the regenerative heat exchanger (102).
- the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) to the lower left channel (56).
- the second air heated by the first adsorption element (81) and the regenerative heat exchanger (102) is introduced into the humidity control passage (85) of the second adsorption element (82).
- the adsorbent is heated by the second air, and water vapor is released from the adsorbent. That is, the regeneration of the second adsorption element (82) is performed.
- the water vapor desorbed from the adsorbent flows into the upper left channel (55) together with the second air.
- the dehumidified first air that has flowed into the upper right flow path (53) is sent into the indoor upper flow path (46) through the second upper right opening (33).
- the first air passes through the first heat exchanger (103) while flowing through the indoor-side upper flow path (46), and is cooled by heat exchange with the refrigerant. Thereafter, the dehumidified and cooled first air is supplied indoors through the indoor-side outlet (14).
- the second air flowing into the upper left flow path (55) flows into the outdoor upper flow path (41) through the first upper left opening (25).
- the second air passes through the second heat exchanger (104) while flowing through the outdoor-side upper flow path (41).
- the second heat exchanger (104) is at rest and the second air is neither heated nor cooled.
- the second air used for cooling the first adsorbing element (81) and regenerating the second adsorbing element (82) is discharged outside through the outdoor air outlet (16).
- the second operation of the dehumidifying operation will be described with reference to FIGS.
- the adsorption operation for the second adsorption element (82) and the reproduction operation for the first adsorption element (81) are performed in reverse to the first operation. That is, in the second operation, the air is dehumidified by the second adsorption element (82), and at the same time, the adsorbent of the first adsorption element (81) is regenerated.
- the first divider (20) has a first upper right opening (23) and a first lower left
- the opening (26) is in communication, and the remaining openings (21, 22, 24, 25) are closed.
- the upper right channel (53) communicates with the outdoor upper channel (41) through the first upper right opening (23), and the outdoor lower channel (42) communicates with the left lower channel (42) through the first lower left opening (26).
- the lower flow path (56) is communicated.
- the second left opening (32) and the second upper left opening (35) are in communication with each other, and the remaining openings (31, 33, 34, 36) are shut off.
- the indoor left lower flow path (47) and the left flow path (52) are communicated by the second left opening (32), and the upper left flow path (55) is connected to the indoor side by the second upper left opening (35).
- the upper flow path (46) is communicated.
- the left shirt evening (62) is closed and the right shirt evening (61) is open.
- the right part of the regenerative heat exchanger (102) and the lower right flow path (54) in the central flow path (57) are communicated via the right shirt (61).
- the first air taken into the casing (10) flows into the lower left channel (56) from the outdoor lower channel (42) through the first lower left opening (26).
- the second air taken into the casing (10) flows into the left flow path (52) from the indoor lower flow path (47) through the second left opening (32).
- the first air in the lower left flow path (56) flows into the humidity control side passage (85) of the second adsorption element (82). While flowing through the humidity control side passage (85), the water vapor contained in the first air is adsorbed by the adsorbent. The first air dehumidified by the second adsorption element (82) flows into the upper left flow path (55).
- the second air in the left flow path (52) flows into the cooling-side passage (86) of the second adsorption element (82). While flowing through the cooling-side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the moisture-returning passage (85). That is, the second air flows through the cooling-side passage (86) as a cooling fluid.
- the second air which has lost the heat of adsorption, flows into the central channel (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) to the lower right channel (54).
- the second air heated by the second adsorption element (82) and the regenerative heat exchanger (102) is introduced into the humidity control passage (85) of the first adsorption element (81).
- This humidity control passage (85) The adsorbent is heated by the second air, and water vapor is desorbed from the adsorbent. That is, the regeneration of the first adsorption element (81) is performed.
- the water vapor desorbed from the adsorbent flows into the upper right channel (53) together with the second air.
- the dehumidified first air that has flowed into the upper left flow path (55) is sent into the indoor upper flow path (46) through the second upper left opening (35).
- the first air passes through the first heat exchanger (103) while flowing through the indoor-side upper flow path (46), and is cooled by heat exchange with the refrigerant. Thereafter, the dehumidified and cooled first air is supplied indoors through the indoor-side outlet (14).
- the second air flowing into the upper right flow path (53) flows into the outdoor upper flow path (41) through the first upper right opening (23).
- the second air passes through the second heat exchanger (104) while flowing through the outdoor-side upper flow path (41).
- the second heat exchanger (104) is at rest and the second air is neither heated nor cooled.
- the second air used for cooling the second adsorbing element (82) and regenerating the first adsorbing element (81) is discharged outside through the outdoor air outlet (16).
- the regenerative heat exchanger (102) becomes a condenser
- the second heat exchanger (104) becomes an evaporator
- the first heat exchanger (103) becomes It is dormant. The operation of the refrigerant circuit (100) will be described later.
- an adsorption operation for the first adsorption element (81) and a reproduction operation for the second adsorption element (82) are performed. That is, in the first operation, the air is humidified by the second adsorption element (82), and the adsorbent of the first adsorption element (81) adsorbs water vapor.
- the first partition (20) has the first right opening (21) and the first upper right.
- the opening (23) is in communication, and the remaining openings (22, 24, 25, 26) are closed.
- the lower outdoor side flow path (42) and the right side flow path (51) are communicated by the first right side opening (21), and the upper right side flow path (53) is connected to the outdoor upper part by the first upper right opening (23).
- the flow path (41) is communicated.
- the second lower right opening (34) and the second upper left opening (35) are in communication with each other, and the remaining openings (31, 32, 33, 36) are in a closed state. .
- the indoor lower flow path (47) and the lower right flow path (54) are communicated by the second lower right opening (34), and the upper left flow path (55) is connected to the chamber by the second upper left opening (35).
- the inner upper flow path (46) is communicated.
- the shirt on the right side (61) is closed, and the shirt on the left side (62) is open.
- the left part of the regenerative heat exchanger (102) in the central flow path (57) and the lower left flow path (56) are communicated via the left shirt (62).
- the first air taken into the casing (10) flows into the lower right channel (54) from the indoor lower channel (47) through the second lower right opening (34).
- the second air taken into the casing (10) flows from the lower outdoor passage (42) through the first right opening (21) into the right passage (51).
- the first air in the lower right flow path (54) flows into the humidity control side passage (85) of the first adsorption element (81). While flowing through the humidity control side passage (85), the water vapor contained in the first air is adsorbed by the adsorbent. The first air deprived of moisture by the first adsorption element (81) flows into the upper right channel (53).
- the second air in the right flow path (51) flows into the cooling-side passage (86) of the first adsorption element (81). While flowing through the cooling-side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity-controlling passage (85). That is, the second air flows through the cooling-side passage (86) as a cooling fluid.
- the second air which has lost the heat of adsorption, flows into the central channel (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) to the lower left channel (56).
- the second air heated by the first adsorption element (81) and the regenerative heat exchanger (102) is introduced into the humidity control passage (85) of the second adsorption element (82).
- This humidity control passage (85) The adsorbent is heated by the second air, and water vapor is desorbed from the adsorbent. That is, the regeneration of the second adsorption element (82) is performed. Then, the water vapor desorbed from the adsorbent is provided to the second air, and the second air is humidified.
- the second air humidified by the second adsorption element (82) then flows into the upper left channel (55).
- the second air passes through the first heat exchanger (103) while flowing through the indoor-side upper flow path (46). At that time, the first heat exchanger (103) is at rest, and the second air is neither heated nor cooled. Then, the humidified second air is supplied indoors through the indoor-side outlet (14).
- the first air flowing into the upper right channel (53) is sent to the outdoor upper channel (41) through the first upper right opening (23).
- the first air passes through the second heat exchanger (104) while flowing through the outdoor-side upper flow path (41), and is cooled by heat exchange with the refrigerant. After that, the first air deprived of moisture and heat is discharged outside through the outdoor outlet (16).
- the adsorption operation for the second adsorption element (82) and the reproduction operation for the first adsorption element (81) are performed in reverse to the first operation. That is, in the second operation, the air is humidified by the first adsorption element (81), and the adsorbent of the second adsorption element (82) adsorbs water vapor.
- the first left opening (22) and the first upper left opening (25) are in communication with each other, and the remaining openings (21, 23, 24, 26) are connected. It is shut off. In this state, the lower outdoor channel (42) and the left channel (52) are communicated by the first left opening (22), and the upper left channel (55) and the upper outdoor channel are connected by the first upper left opening (25). The flow path (41) is communicated.
- the second upper right opening (33) and the second lower left opening (36) are in communication with each other, and the remaining openings (31, 32, 34, 35) are in a closed state.
- the upper right flow path (53) and the indoor upper flow path (46) communicate with each other through the second upper right opening (33), and the indoor lower flow path (47) through the second lower left opening (36).
- the lower left channel (56) is communicated.
- the left shirt evening (62) is closed and the right shirt evening (61) is open.
- the right part of the regenerative heat exchanger (102) in the central flow path (57) and the lower right flow path (54) are communicated via the right shirt (61).
- the first air taken into the casing (10) flows into the lower left flow path (56) from the indoor lower flow path (47) through the second lower left opening (36).
- the second air taken into the casing (10) flows from the lower outdoor passage (42) through the first left opening (22) into the left passage (52).
- the first air in the lower left flow path (56) flows into the humidity control side passage (85) of the second adsorption element (82). While flowing through the humidity control side passage (85), the water vapor contained in the first air is adsorbed by the adsorbent. The first air deprived of moisture by the second adsorption element (82) flows into the upper left flow path (55).
- the second air in the left flow path (52) flows into the cooling-side passage (86) of the second adsorption element (82). While flowing through the cooling-side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity-controlling passage (85). That is, the second air flows through the cooling-side passage (86) as a cooling fluid.
- the second air which has lost the heat of adsorption, flows into the central channel (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) to the lower right channel (54).
- the second air heated by the second adsorption element (82) and the regenerative heat exchanger (102) is introduced into the humidity control side passage (85) of the first adsorption element (81).
- the adsorbent is heated by the second air, and water vapor is released from the adsorbent. That is, the regeneration of the first adsorption element (81) is performed. Then, the water vapor desorbed from the adsorbent is provided to the second air, and the second air is humidified.
- the second air humidified by the first adsorption element (81) then flows into the upper right channel (53).
- the second air passes through the first heat exchanger (103) while flowing through the indoor-side upper flow path (46). At that time, the first heat exchanger (103) is at rest, and the second air is neither heated nor cooled. Then, the humidified second air is supplied indoors through the indoor-side outlet (14).
- the first air flowing into the upper left flow path (55) is sent into the outdoor upper flow path (41) through the first upper left opening (25).
- the first air passes through the second heat exchanger (104) while flowing through the outdoor-side upper flow path (41), and is cooled by heat exchange with the refrigerant. After that, the first air deprived of moisture and heat is discharged outside through the outdoor outlet (16).
- the operation of the refrigerant circuit (100) will be described with reference to FIGS.
- the flows of the first air and the second air shown in FIG. 8 are those during the second operation.
- the four-way switching valve (120) is connected to the first port (121) and the fourth port (124) through the second port (1).
- the opening of the electric expansion valve (110) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, the first heat exchanger (103) becomes an evaporator, and the second heat exchanger (104) becomes inactive. 8 (a)).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is sent to the electric expansion valve (110) through the receiver (105).
- This refrigerant is decompressed when passing through the electric expansion valve (110).
- the refrigerant decompressed by the electric expansion valve (110) is sent to the first heat exchanger (103) through the four-way switching valve (120).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) is sucked into the compressor (101), compressed, and then discharged from the compressor (101).
- the four-way switching valve (120) is connected to the first port (121) and the second port (122) so as to communicate with the third port (1).
- the opening of the electric expansion valve (110) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, the second heat exchanger (104) becomes an evaporator, and the first heat exchanger (103) becomes inactive. 8 (b)).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is sent to the electric expansion valve (110) through the receiver (105).
- This refrigerant is decompressed when passing through the electric expansion valve (110).
- the refrigerant decompressed by the electric expansion valve (110) is sent to the second heat exchanger (104) through the four-way switching valve (120).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air and evaporates.
- the refrigerant evaporated in the second heat exchanger (104) is sucked into the compressor (101), compressed, and then discharged from the compressor (101).
- the refrigerant circulating in the refrigerant circuit (100) during the humidification operation absorbs heat from the first air in the second heat exchanger (104) and releases heat to the second air in the regenerative heat exchanger (102). That is, heat is recovered from the first air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the regenerative heat exchanger (102). Used for heating the second air.
- the second heat exchanger (104) serving as an evaporator is used during the humidifying operation in which the humidified second air is supplied into the room and the dehumidified first air is discharged outside the room. ) Allows the refrigerant to exchange heat with the first air. Therefore, it is possible to avoid a situation in which the humidified second air supplied into the room is cooled by heat exchange with the refrigerant, and the water vapor in the second air is condensed and lost. Therefore, according to the present embodiment, the humidifying performance of the humidity control apparatus capable of supplying the humidified second air to the room can be maintained at a high level.
- the heat exchanger (104) is installed in the refrigerant circuit (100), and the first heat exchanger (103) is installed in the evaporator.
- the present embodiment it is possible to reduce restrictions on the layout of the components of the humidity control apparatus, particularly the layout of the first heat exchanger (103) and the second heat exchanger (104) that can be evaporators. In addition, it is possible to reliably avoid the problem caused by the restriction of the device layout, that is, the problem that the degree of freedom of the design of the humidity control device is impaired or the air flow path becomes complicated and the humidity control device becomes large. .
- the humidity control apparatus of the present embodiment includes a plurality of adsorption elements (81, 82), and supplies the first air to the first adsorption element (81) to perform the adsorption operation, and at the same time, performs the second adsorption element.
- the second operation in which the second air is supplied to perform the regeneration operation is alternately performed.
- a heat exchanger serving as an evaporator is installed in an air flow path through which both the first air flowing out of the first adsorption element (81) and the first air flowing out of the second adsorption element (82) flow. Therefore, it is necessary to form an air flow path that can switch the first air after passing through the heat exchanger between the indoor side and the outdoor side. For this reason, in order to install the heat exchanger which becomes an evaporator, the air flow path had to be complicated, and there was a possibility that the humidity control device would become large.
- the humidity control apparatus of the present embodiment includes two heat exchangers (103, 104) that can be evaporators.
- the first heat exchanger (103) is arranged near the indoor outlet (14) in the casing (10), and the first heat exchanger (103) is located near the outdoor outlet (16) in the casing (10).
- the heat exchanger (104) It is possible to arrange the heat exchanger (104). Therefore, according to the present embodiment, the air flow path in the humidity control device can be simply maintained, and the casing (10) can be formed in a flat shape.
- the first air can be dehumidified and further cooled by the first heat exchanger (103) before being supplied to the room. Therefore, according to this humidity control apparatus, not only indoor humidity control but also cooling can be performed. Furthermore, in the humidity control apparatus of the present embodiment, during the humidification operation, the heat recovered from the first air exhausted by the second heat exchanger (104) is converted into the second air by the regenerative heat exchanger (102). It can be used for heating. Therefore, according to this humidity control apparatus, the internal energy of the exhausted first air can be effectively used for the operation of the humidity control apparatus.
- a cooling-side passage (86) through which a cooling fluid to take away flows is formed.
- the second air is supplied to the regenerative heat exchanger (102) as a cooling fluid after passing through the cooling-side passage (86) of the adsorption element (81, 82). Heated.
- the cooling side passageway (86) is formed in the adsorption element (81, 82), and the heat of adsorption generated during the adsorption operation is taken away by the second air as the cooling fluid. For this reason, in the adsorption elements (81, 82) during the adsorption operation, it is possible to suppress the temperature rise of the first air due to the heat of adsorption generated in the humidity control side passage (85).
- the present embodiment it is possible to prevent the relative humidity of the first air flowing through the humidity control side passageway (85) of the adsorption element (81, 82) from being excessively reduced, and the adsorption element (81, 82)
- the amount of water vapor adsorbed on the water can be increased.
- the capacity of the humidity control device can be improved without increasing the size of the humidity control device.
- the second air is first introduced as a cooling fluid into the cooling-side passage (86) of the adsorption element (81, 82), and the second air exiting from the cooling-side passage (86) is regenerated heat.
- Heating in exchanger (102) That is, the second air used for the regeneration of the adsorption element (81, 82) is heated not only in the regenerative heat exchanger (102) but also in the cooling-side passage (86) of the adsorption element (81, 82). Therefore, according to the present embodiment, the amount of heat that must be given to the second air in the regenerative heat exchanger (102) can be reduced, and the energy required for operating the humidity control device can be reduced.
- Embodiment 2 of the present invention is obtained by changing the configuration of the refrigerant circuit (100) in Embodiment 1 described above.
- the configuration other than the refrigerant circuit (100) is the same as that of the first embodiment.
- the refrigerant circuit (100) of the present embodiment is a closed circuit filled with refrigerant.
- the refrigerant circuit (100) includes a compressor (101), a regenerative heat exchanger (102), a first heat exchanger (103), a second heat exchanger (104), a receiver (105), a first electric expansion.
- a valve (111) and a second electric expansion valve (112) are provided.
- a vapor compression refrigeration cycle is performed by circulating the refrigerant.
- the discharge side of the compressor (101) is connected to one end of the regenerative heat exchanger (102).
- the other end of the regenerative heat exchanger (102) is connected to one end of a first electric expansion valve (111) and one end of a second electric expansion valve (112) via a receiver (105).
- the other end of the first electric expansion valve (111) is connected to one end of the first heat exchanger (103).
- the other end of the second electric expansion valve (112) is connected to one end of the second heat exchanger (104).
- the other end of the first heat exchanger (103) and the other end of the second heat exchanger (104) are connected to the suction side of the compressor (101).
- the humidity control apparatus of the present embodiment switches between the dehumidifying operation and the humidifying operation. Further, the humidity control apparatus performs the dehumidification operation and the humidification operation by alternately repeating the first operation and the second operation.
- the operation of the humidity control apparatus is the same as that of the first embodiment except for the operation of the refrigerant circuit (100).
- the operation of the refrigerant circuit (100) of the present embodiment will be described with reference to FIGS.
- the flows of the first air and the second air shown in FIGS. 8 and 10 are those during the second operation.
- the first operation at the time of the dehumidification operation will be described.
- the opening of the first electric expansion valve (111) is appropriately adjusted according to the operation conditions.
- the second electric expansion valve (112) is in a fully closed state.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, the regenerative heat exchanger (102) Becomes a condenser, the first heat exchanger (103) becomes an evaporator, and the second heat exchanger (104) becomes inactive (see Fig. 8 (a)). That is, in the refrigerant circuit (100) in the first operation operation, the same operation as in the dehumidification operation of the first embodiment is performed.
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is sent to the first electric expansion valve (111) through the receiver (105). This refrigerant is decompressed when passing through the first electric expansion valve 11).
- the refrigerant decompressed by the first electric expansion valve (111) is sent to the first heat exchanger (103).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) is sucked into the compressor (101), compressed, and then discharged from the compressor (101).
- the second operation at the time of the dehumidification operation will be described.
- the opening of each of the first electric expansion valve (111) and the second electric expansion valve (112) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, and both the first heat exchanger (103) and the second heat exchanger (104) become evaporators (Fig. 10). (a)). Further, the first heat exchanger (103) and the second heat exchanger (104) are in parallel with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) during the second operation, unlike the dehumidification operation of the first embodiment, heat exchange between the refrigerant and the second air is performed in the second heat exchanger (104).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is divided into two parts after passing through the receiver (105). One of the divided refrigerant is sent to the first electric expansion valve (# 1), and the other is sent to the second electric expansion valve (112).
- the refrigerant sent to the first electric expansion valve (111) is decompressed when passing through the first electric expansion valve (111), and then sent to the first heat exchanger (103).
- 1st heat exchanger (103) The refrigerant that has flowed into the air exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant sent to the second electric expansion valve (112) is decompressed when passing through the second electric expansion valve (112), and then sent to the second heat exchanger (104).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the second air, absorbs heat from the second air, and evaporates.
- the refrigerant evaporating in the first heat exchanger (103) and the refrigerant evaporating in the second heat exchanger (104) are merged and then sucked into the compressor (101), compressed, and then compressed by the compressor (101). It is discharged from.
- the refrigerant circulating in the refrigerant circuit (100) during the second operation is supplied to the second heat exchanger (1).
- heat is absorbed from the second air, and heat is released to the second air in the regenerative heat exchanger (102). That is, heat is recovered from the second air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2 Reused for heating air.
- the first operation at the time of the humidification operation will be described.
- the opening of the second electric expansion valve (112) is appropriately adjusted according to the operation conditions.
- the first electric expansion valve (111) is in a fully closed state.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, the second heat exchanger (104) becomes an evaporator, and the first heat exchanger (103) becomes inactive. 8 (b)). That is, in the refrigerant circuit (100) in the first operation operation, the same operation as in the humidification operation in the first embodiment is performed.
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air, and condenses.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, and both the first heat exchanger (103) and the second heat exchanger (104) become evaporators (Fig. 10). (See (b)). Further, the first heat exchanger (103) and the second heat exchanger (104) are in parallel with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) in the second operation operation, unlike the humidification operation in the first embodiment, heat exchange between the refrigerant and the second air is performed in the first heat exchanger (103).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is divided into two parts after passing through the receiver (105). One of the divided refrigerant is sent to the first electric expansion valve (111), and the other is sent to the second electric expansion valve (112).
- the refrigerant sent to the first electric expansion valve (111) is decompressed when passing through the first electric expansion valve (111), and then sent to the first heat exchanger (103).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the second air, absorbs heat from the second air, and evaporates.
- the refrigerant sent to the second electric expansion valve (112) is decompressed when passing through the second electric expansion valve (112), and then sent to the second heat exchanger (104).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air and evaporates.
- the refrigerant evaporating in the first heat exchanger (103) and the refrigerant evaporating in the second heat exchanger (104) are merged, sucked into the compressor (101), compressed, and then compressed. It is discharged from.
- the humidified second air is supplied to the first heat exchanger (103). After being cooled in the room, it is supplied to the room. At that time, it is desirable to prevent the moisture in the second air from condensing in the first heat exchanger (103) and avoid a decrease in the humidification amount. Therefore, during the second operation, the refrigerant flow rate in the first heat exchanger (103) is set to be smaller than the refrigerant flow rate in the second heat exchanger (104). It is desirable to keep the heat absorption of the refrigerant low.
- the refrigerant circulating in the refrigerant circuit (100) absorbs heat from the first air in the second heat exchanger (104), and absorbs heat in the regenerative heat exchanger (102). Dissipates heat to the second air. That is, heat is recovered from the first air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2Used for heating air.
- the heat recovered from the exhausted second air can be reused for heating the second air in the regenerative heat exchanger (102). Therefore, according to this humidity control device, the internal energy of the exhausted second air can be effectively used for the operation of the humidity control device.
- the heat recovered from the exhausted first air can be used for heating the first air in the regenerative heat exchanger (102). Therefore, according to this humidity control apparatus, the internal energy of the exhausted first air can be effectively used for the operation of the humidity control apparatus.
- the second air in the second operation operation of the humidification operation, the second air can be supplied to the room after being humidified and further cooled. Therefore, according to this humidity control apparatus, an operation suitable for a case where only humidification is desired without increasing the indoor temperature can be performed.
- both the first heat exchanger (103) and the second heat exchanger (104) function as evaporators. Therefore, compared to the first operation in which only the second heat exchanger (104) becomes the evaporator, the medium evaporation in the second heat exchanger (104) is performed without reducing the heat absorption of the refrigerant in the refrigeration cycle. Temperature can be set higher. others Therefore, frost formation in the second heat exchanger (104) can be avoided, and humidification capacity can be improved by avoiding interruption of the humidification operation due to defrost.
- Embodiment 3 of the present invention is obtained by changing the configuration of the refrigerant circuit (100) in Embodiment 1 described above.
- the configuration other than the refrigerant circuit (100) is the same as that of the first embodiment.
- the refrigerant circuit (100) of the present embodiment is a closed circuit filled with a refrigerant.
- the refrigerant circuit (100) includes a compressor (101), a regenerative heat exchanger (102), a first heat exchanger (103), a second heat exchanger (104), a receiver (105), and a four-way switching valve. (1 20) is provided.
- the refrigerant circuit (100) is provided with two electric expansion valves (111, 112) and two check valves (151, 152). In this refrigerant circuit (100), a vapor compression refrigeration cycle is performed by circulating the refrigerant.
- the discharge side of the compressor (101) is connected to one end of the regenerative heat exchanger (102) and the first port (121) of the four-way switching valve (120).
- the other end of the regenerative heat exchanger (102) is connected to one end of a first electric expansion valve (111) and one end of a second electric expansion valve (112) via a receiver (105).
- the other end of the first electric expansion valve (111) is connected to one end of the first heat exchanger (103) via a first check valve (151).
- the other end of the first heat exchanger (103) is connected to the fourth port (124) of the four-way switching valve (120).
- the second check valve (152) connects between the first check valve (151) and the first heat exchanger (103), and connects between the regenerative heat exchanger (102) and the receiver (105). It is provided in the piping which does.
- the first check valve (151) is provided so as to allow only the flow of the refrigerant from the first electric expansion valve (111) to the first heat exchanger (103).
- the second check valve (152) is installed so as to allow only the flow of the refrigerant from the first heat exchanger (103) to the receiver (105).
- the other end of the second electric expansion valve (112) is connected to one end of the second heat exchanger (104).
- the other end of the second heat exchanger (104) and the third port (123) of the four-way switching valve (120) are connected to the suction side of the compressor (101).
- the second port (122) of the four-way switching valve (120) is connected to the compressor (1) via a capillary tube (CP). 01) is connected to the suction side.
- the four-way switching valve (120) has a state where the first port (121) and the second port (122) communicate with each other and the third port (123) and the fourth port (124) communicate with each other. (121) and the fourth port (124) communicate with each other and the second port (122) and the third port (123) are switched into a state of communicating with each other.
- the second port (122) of the four-way switching valve (120) is connected to the suction side of the compressor (101) via a capillary tube (CP). Is intended to avoid a liquid-sealed state. That is, the second port (122) of the four-way switching valve (120) is substantially closed, and the four-way switching valve (120) is used as a three-way valve in the refrigerant circuit (100). Therefore, in the refrigerant circuit (100), a three-way valve may be used instead of the four-way switching valve (120).
- the humidity control apparatus of the present embodiment switches between the dehumidifying operation and the humidifying operation. Further, the humidity control apparatus performs the dehumidification operation and the humidification operation by alternately repeating the first operation and the second operation.
- the operation of the humidity control apparatus is the same as that of the first embodiment except for the operation of the refrigerant circuit (100).
- the operation of the refrigerant circuit (100) of the present embodiment will be described with reference to FIG. 8, FIG. 10 to FIG.
- the flows of the first air and the second air shown in FIGS. 8, 10, and 12 are those during the second operation.
- the four-way switching valve (120) has the first port (121) and the second port (122) communicating with each other and the third port (123) and the fourth port (124) communicating with each other. State.
- the degree of opening of the first electric expansion valve (1 ⁇ ) is appropriately adjusted according to the operating conditions, and the second electric expansion valve (112) is fully closed.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100). A refrigeration cycle is performed. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, the first heat exchanger (103) becomes an evaporator, and the second heat exchanger (104) becomes inactive. 8 (a)). That is, in the refrigerant circuit (100) in the first operation operation, the same operation as in the dehumidification operation of the first embodiment is performed.
- the medium discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air, and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is sent to the first electric expansion valve (111) through the receiver (105). This refrigerant is decompressed when passing through the first electric expansion valve (111), and then sent to the first heat exchanger (103) through the first check valve (151).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) is sucked into the compressor (101) through the four-way switching valve (120).
- the refrigerant sucked into the compressor (101) is discharged after being compressed.
- the second operation at the time of the dehumidification operation will be described.
- the first port (121) and the second port (122) communicate with each other
- the third port (123) and the fourth port (124) communicate with each other.
- the degree of each of the first electric expansion valve (111) and the second electric expansion valve (112) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, and both the first heat exchanger (103) and the second heat exchanger (104) become evaporators (Fig. 10). (a)). Further, the first heat exchanger (103) and the second heat exchanger (104) are in parallel with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) in the second operation operation, unlike the dehumidification operation in the first embodiment, heat exchange between the refrigerant and the second air is performed in the second heat exchanger (104).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is divided into two parts after passing through the receiver (105). One of the divided refrigerant is sent to the first electric expansion valve (111), and the other is sent to the second electric expansion valve (112).
- the refrigerant sent to the first electric expansion valve (111) is decompressed when passing through the first electric expansion valve (111), and then passes through the first check valve (151) to the first heat exchanger. Sent to (103).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) is sucked into the compressor (101) through the four-way switching valve (120).
- the refrigerant sent to the second electric expansion valve (112) is decompressed when passing through the second electric expansion valve (112), and then sent to the second heat exchanger (104).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the second air, absorbs heat from the second air and evaporates.
- the refrigerant evaporated in the second heat exchanger (104) merges with the refrigerant evaporated in the first heat exchanger (103) and is then sucked into the compressor (101).
- the refrigerant drawn into the compressor (101) is discharged after being compressed.
- the refrigerant circulating in the refrigerant circuit (100) during the second operation absorbs heat from the second air in the second heat exchanger (104) and releases heat to the second air in the regenerative heat exchanger (102). That is, heat is recovered from the second air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2 Reused for heating air.
- the humidification operation three types of operation can be performed in the refrigerant circuit (100) of the present embodiment. During the humidification operation, three operation operations are appropriately selected and performed.
- the four-way switching valve (120) has the first port (121) and the second port (122) communicating with each other and the third port (123) and the fourth port (124) communicating with each other. State.
- the first electric expansion valve (111) is in a fully closed state, and the opening of the second electric expansion valve (112) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, the second heat exchanger (104) becomes an evaporator, and the first heat exchanger (103) becomes inactive. 8 (b)). In other words, the refrigerant circuit (10 In 0), the same operation as in the humidification operation of Embodiment 1 is performed.
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air, and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is sent to the second electric expansion valve (112) through the receiver (105). This refrigerant is decompressed when passing through the second electric expansion valve (112), and then sent to the second heat exchanger (104).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the second heat exchanger (104) is sucked into the compressor (101) to be compressed, and then discharged from the compressor (101).
- the second operation at the time of the humidification operation will be described.
- the first port (121) and the second port (122) communicate with each other
- the third port (123) and the fourth port (124) communicate with each other.
- the opening degree of each of the first electric expansion valve (111) and the second electric expansion valve (112) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, and both the first heat exchanger (103) and the second heat exchanger (104) become evaporators (Fig. 10). (See (b)). Further, the first heat exchanger (103) and the second heat exchanger (104) are in parallel with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) in the second operation operation, unlike the humidification operation in the first embodiment, heat exchange between the refrigerant and the second air is performed in the first heat exchanger (103).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is divided into two parts after passing through the receiver (105). One of the divided refrigerant is sent to the first electric expansion valve (111), and the other is sent to the second electric expansion valve (112).
- the refrigerant sent to the first electric expansion valve (111) is decompressed when passing through the first electric expansion valve (111), and then passes through the first check valve (151) to the first heat exchanger. Sent to (103).
- the medium that has flowed into the first heat exchanger (103) exchanges heat with the second air, absorbs heat from the second air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) is switched four-way It is sucked into the compressor (101) through the valve (120).
- the refrigerant sent to the second electric expansion valve (112) is decompressed when passing through the second electric expansion valve (112), and then sent to the second heat exchanger (104).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air and evaporates.
- the refrigerant evaporated in the second heat exchanger (104) merges with the refrigerant evaporated in the first heat exchanger (103) and is then sucked into the compressor (101).
- the refrigerant drawn into the compressor (101) is discharged after being compressed.
- the humidified second air is supplied to the room after being cooled by the first heat exchanger (103). At that time, it is desirable to prevent the moisture in the second air from condensing in the first heat exchanger (103) and avoid a decrease in the humidification amount. Therefore, during the second operation, the refrigerant flow rate in the first heat exchanger (103) is set to be smaller than the refrigerant flow rate in the second heat exchanger (104). It is desirable to keep the heat absorption of the refrigerant low.
- the four-way switching valve (120) has the first port (121) and the fourth port (124) communicating with each other and the second port (122) and the third port (123) communicating with each other. State.
- the first electric expansion valve (111) is in a fully closed state, and the opening of the second electric expansion valve (112) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), both the regenerative heat exchanger (102) and the first heat exchanger (103) become condensers, and the second heat exchanger (104) becomes an evaporator (Fig. 12) reference). In addition, the regenerative heat exchanger (102) and the first heat exchanger (103) are in parallel with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) during the second operation, unlike the humidification operation in the first embodiment, heat exchange between the refrigerant and the second air is performed in the first heat exchanger (103). .
- the refrigerant discharged from the compressor (101) is divided into two parts.
- One of the divided refrigerant is sent to the regenerative heat exchanger (102), and the other is sent to the first heat exchanger (103) through the four-way switching valve (120).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, and Dissipates heat and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) flows into the receiver (105).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the second air, and releases heat to the second air to condense.
- the refrigerant condensed in the first heat exchanger (103) passes through the second check valve (152) and flows into the receiver (105) together with the refrigerant condensed in the regenerative heat exchanger (102).
- the refrigerant flowing out of the receiver (105) is sent to the second electric expansion valve (112).
- the refrigerant is decompressed when passing through the second electric expansion valve (112), and then sent to the second heat exchanger (104).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the second heat exchanger (104) is sucked into the compressor (101), compressed, and then discharged from the compressor (101).
- the refrigerant radiates heat to the second air after passing through the adsorption elements (81, 82). That is, the second air is humidified by the adsorption element (81, 82), further heated by the first heat exchanger (103), and then supplied to the room.
- the refrigerant circulating in the refrigerant circuit (100) absorbs heat from the first air in the second heat exchanger (104), and the regenerative heat exchanger (102) To radiate heat to the second air. That is, heat is recovered from the first air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2Used for heating air.
- the second air can be humidified and further heated before being supplied to the room. Therefore, according to this humidity control apparatus, not only indoor humidity control but also heating can be performed. Also, in the refrigerant circuit (100) during this operation, the regenerative heat exchanger (102) and the first heat exchanger (103), both functioning as condensers, are in parallel with each other. Therefore, compared with the case where the regenerative heat exchanger (102) and the first heat exchanger (103), which are the condensers, are in series with each other, the refrigerant is given to the second air by the first heat exchanger (103). Heat can be increased, A sufficient heating capacity can be secured.
- Embodiment 4 of the present invention is obtained by changing the configuration of the refrigerant circuit (100) in Embodiment 1 described above.
- the configuration other than the refrigerant circuit (100) is the same as that of the first embodiment.
- the refrigerant circuit (100) of the present embodiment is a closed circuit filled with the refrigerant.
- the refrigerant circuit (100) includes a compressor (101), a regenerative heat exchanger (102), a first heat exchanger (103), a second heat exchanger (104), a receiver (105), and a bridge circuit ( 1 06) is provided.
- the refrigerant circuit (100) is provided with one electric expansion valve (110) and two four-way switching valves (130, 140). In the refrigerant circuit (100), a vapor compression refrigeration cycle is performed by circulating the refrigerant.
- the discharge side of the compressor (101) is connected to one end of the regenerative heat exchanger (102) and the first port (131) of the first four-way switching valve (130).
- the other end of the regenerative heat exchanger (102) is connected to one end of an electric expansion valve (110) via a receiver (105).
- the other end of the electric expansion valve (110) is connected to one end of a first heat exchanger (103) and one end of a second heat exchanger (104) via a bridge circuit (106).
- the bridge circuit (106) is connected to a pipe between the regenerative heat exchanger (102) and the receiver (105).
- the other end of the first heat exchanger (103) is connected to the fourth port (144) of the second four-way switching valve (140).
- the other end of the second heat exchanger (104) is connected to the second port (142) of the second four-way switching valve (140).
- the first port (141) of the second four-way switching valve (140) is connected to the fourth port (134) of the first four-way switching valve (130).
- the third port (133) of the first four-way switching valve (130) and the third port (143) of the second four-way switching valve (140) are connected to the suction side of the compressor (101). .
- the second port (132) of the first four-way switching valve (130) is connected to the suction side of the compressor (101) via a capillary tube (CP).
- the bridge circuit (106) is made up of four check valves (151 to 154) connected in a bridge.
- the first heat exchanger (103) is connected to the second check valve (152) and the third check valve.
- the electric expansion valve (110) is installed between the third check valve (153) and the fourth check valve (154).
- the second heat exchanger (104) is installed between the third check valve (153) and the fourth check valve (154).
- 1A receiver (105) is connected between the check valves (151).
- the first check valve (151) is provided so as to allow only the flow of the refrigerant from the first heat exchanger (103) to the receiver (105).
- the second check valve (152) is installed so as to allow only the flow of the refrigerant from the electric expansion valve (110) to the first heat exchanger (103).
- the third check valve (153) is installed so as to allow only the flow of the refrigerant from the electric expansion valve (110) to the second heat exchanger (104).
- the fourth check valve (154) is installed so as to allow only the flow of the refrigerant from the second heat exchanger (104) to the receiver (105).
- the first four-way switching valve (130) has a state in which the first port (131) and the second port (132) communicate with each other and the third port (133) and the fourth port (134) communicate with each other.
- the port (131) and the fourth port (134) communicate with each other and the second port (132) and the third port (133) are switched into a state of communicating with each other.
- the second four-way switching valve (140) has a state in which the first port (141) and the second port (142) are in communication with each other and the third port (143) and the fourth port (144) are in communication with each other;
- the first port (141) and the fourth port (144) communicate with each other and the second port (142) and the third port (143) switch to a state of communicating with each other.
- the second port (132) of the first four-way switching valve (130) is connected to the suction side of the compressor (101) via a capillary tube (CP). This is intended to avoid a liquid-sealed state. That is, the second port (132) of the first four-way switching valve (130) is substantially closed, and the first four-way switching valve (130) is used as a three-way valve in the refrigerant circuit (100). Therefore, in the refrigerant circuit (100), a three-way valve may be used instead of the first four-way switching valve (130).
- the humidity control apparatus of the present embodiment switches between the dehumidifying operation and the humidifying operation. Further, the humidity control apparatus performs the dehumidification operation and the humidification operation by alternately repeating the first operation and the second operation.
- the operation of the humidity control apparatus is the same as that of the above embodiment except for the operation of the refrigerant circuit (100). Same as 1.
- the operation of the refrigerant circuit (100) of the present embodiment will be described with reference to FIGS. 10, 13, and 14.
- FIG. The flows of the first air and the second air shown in FIGS. 10 and 14 are those during the second operation.
- the dehumidification operation two types of operation operations are possible in the refrigerant circuit (100) of the present embodiment. During the dehumidifying operation, two operation operations are appropriately selected and performed.
- the first four-way switching valve (130) is configured such that the first port (131) and the second port (132) communicate with each other and the third port (133) and the fourth port (134) communicate with each other.
- the second four-way switching valve (140) is connected to the first port (141) and the fourth port (144), and the second port (142) and the third port (143) are connected to each other. State. Further, the opening degree of the electric expansion valve (110) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, and both the first heat exchanger (103) and the second heat exchanger (104) become evaporators (Fig. 10). (a)). Further, the first heat exchanger (103) and the second heat exchanger (104) are in parallel with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) during the second operation, unlike the dehumidification operation of the first embodiment, heat exchange between the refrigerant and the second air is performed in the second heat exchanger (104).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) passes through the receiver (105) and is sent to the electric expansion valve (110). This refrigerant is decompressed when passing through the electric expansion valve (110), and is then sent to the prism circuit (106).
- the refrigerant flowing into the ridge circuit (106) is divided into two parts. One of the divided refrigerant is sent to the first heat exchanger (103) through the second check valve (152), and the other is passed to the second heat exchanger through the third check valve (153). Sent to the vessel (104).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the first air, and It absorbs heat from air and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) passes through the second four-way switching valve (140) from the fourth port (144) to the first port (141), and then passes through the first four-way switching valve (130). ) Passes from the fourth port (134) to the third port (133) and is sucked into the compressor (101).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the second air, absorbs heat from the second air, and evaporates.
- the refrigerant evaporated in the second heat exchanger (104) passes through the second four-way switching valve (140) from the second port (142) to the third port (14).
- the refrigerant circulating in the refrigerant circuit (100) during the first operation is supplied to the second heat exchanger (1).
- heat is absorbed from the second air, and heat is released to the second air in the regenerative heat exchanger (102). That is, heat is recovered from the second air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2 Reused for heating air.
- the second four-way switching valve (140) is connected to the first port (141) and the fourth port (144) so that the second port (142) and the third port are connected to each other.
- the second four-way switching valve (140) is connected to the first port (141) and the second port (142), and the third port (143) is connected to the fourth port. port
- the first four-way switching valve (130) is configured such that the first port (131) and the fourth port (134) communicate with each other and the second port (132) and the third port (133) communicate with each other.
- the second four-way switching valve (140) communicates with the first port (141) and the second port (142), and the third port (143) and the fourth port (144) communicate with each other. State. Further, the opening degree of the electric expansion valve (110) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100). A refrigeration cycle is performed. At that time, in the refrigerant circuit (100), both the regenerative heat exchanger (102) and the second heat exchanger (104) become condensers, and the first heat exchanger (103) becomes an evaporator (Fig. 14). (a)). Further, the regenerative heat exchanger (102) and the second heat exchanger (104) are in parallel with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) during the second operation, unlike the dehumidification operation of the first embodiment, heat exchange between the refrigerant and the second air is performed in the second heat exchanger (104).
- the refrigerant discharged from the compressor (101) is divided into two parts.
- One of the divided refrigerant is sent to the regenerative heat exchanger (102), and the other is sent to the first four-way switching valve (130).
- the refrigerant sent to the first four-way switching valve (130) passes through the first four-way switching valve (130) from the first port (131) to the fourth port (134), and further, the second four-way switching valve (140) passes from the first port (141) to the second port (142) and is sent to the second heat exchanger (104).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air, and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) flows into the receiver (105).
- the refrigerant that has flowed into the second heat exchanger (104) performs heat exchange with the second air, releases heat to the second air, and condenses.
- the refrigerant condensed in the second heat exchanger (104) passes through the fourth check valve (154) of the bridge circuit (106) and flows into the receiver (105) together with the refrigerant condensed in the regenerative heat exchanger (102). I do.
- the refrigerant flowing out of the receiver (105) is sent to the electric expansion valve (110), and is decompressed when passing through the electric expansion valve (110).
- the coolant depressurized by the electric expansion valve (110) is sent to the first heat exchanger (103) through the second check valve (152) of the bridge circuit (106).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) passes through the second four-way switching valve (140) from the fourth port (144) to the third port (143), and then to the compressor (101). Inhaled.
- the refrigerant drawn into the compressor (101) is discharged after being compressed.
- the first four-way switching valve (130) is configured such that the first port (131) and the second port (132) communicate with each other and the third port (133) and the fourth port (134) communicate with each other.
- the second four-way switching valve (140) is connected to the first port (141) and the fourth port (144), and the second port (142) and the third port (143) are connected to each other. State. Further, the opening degree of the electric expansion valve (110) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, and both the first heat exchanger (103) and the second heat exchanger (104) become evaporators (Fig. 10). (See (b)). Further, the first heat exchanger (103) and the second heat exchanger (104) are in parallel with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) in the second operation operation, unlike the humidification operation in the first embodiment, heat exchange between the refrigerant and the second air is performed in the first heat exchanger (103).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) passes through the receiver (105) and is sent to the electric expansion valve (110). This refrigerant is decompressed when passing through the electric expansion valve (110), and then sent to the bridge circuit (106).
- the refrigerant flowing into the bridge circuit (106) is divided into two parts. One of the divided refrigerant is sent to the first heat exchanger (103) through the second check valve (152), and the other is passed to the second heat exchanger through the third check valve (153). Sent to the vessel (104).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the second air, absorbs heat from the second air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) passes through the second four-way switching valve (140) from the fourth port (144) to the first port (141), and then passes through the first four-way switching valve (130). ) Passes from the fourth port (134) to the third port (133) and is sucked into the compressor (101).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air and evaporates.
- the refrigerant evaporated in the second heat exchanger (104) Through the two-way switching valve (140) from the second port (142) to the third port (143), and then merges with the refrigerant evaporated in the first heat exchanger (103) and sucks into the compressor (101) Is done.
- the refrigerant drawn into the compressor (101) is discharged after being compressed.
- the refrigerant circulating in the refrigerant circuit (100) absorbs heat from the first air in the second heat exchanger (104) and releases heat to the second air in the regenerative heat exchanger (102). . That is, heat is recovered from the first air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2Used for air heating.
- the second four-way switching valve (140) is connected to the first port (141) and the fourth port (144) so that the second port (142) and the third port are connected to each other.
- the second four-way switching valve (140) is connected to the first port (141) and the second port (142), and the third port (143) and the fourth port are connected to each other.
- the first four-way switching valve (130) and the second four-way switching valve (140) are both connected through the first port (131, 141) and the fourth port (134, 144).
- the second port (132, 142) and the third port (133, 143) communicate with each other.
- the opening of the electric expansion valve (110) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), both the regenerative heat exchanger (102) and the first heat exchanger (103) become condensers, and the second heat exchanger (104) becomes evaporators (Fig. 14). (See (b)). Further, the regenerative heat exchanger (102) and the first heat exchanger (103) are in parallel with each other in the direction of circulation of the refrigerant. That is, in the refrigerant circuit (100) in the second operation, unlike the humidification operation in the first embodiment, heat exchange between the refrigerant and the second air is performed in the first heat exchanger (103).
- the refrigerant discharged from the compressor (101) is divided into two parts. Diverted One of the refrigerants is sent to the regenerative heat exchanger (102), and the other is sent to the first four-way switching valve (130). Also, the refrigerant sent to the first four-way switching valve (130) passes through the first four-way switching valve (130) from the first port (131) to the fourth port (134), and further, the second four-way switching valve (140) passes from the first port (141) to the fourth port (144) and is sent to the first heat exchanger (103).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air, and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) flows into the receiver (105).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the second air, and releases heat to the second air to condense.
- the refrigerant condensed in the first heat exchanger (103) passes through the first check valve (151) of the bridge circuit (106) and flows into the receiver (105) together with the refrigerant condensed in the regenerative heat exchanger (102). I do.
- the refrigerant flowing out of the receiver (105) is sent to the electric expansion valve (110), and is decompressed when passing through the electric expansion valve (110).
- the refrigerant depressurized by the electric expansion valve (110) is sent to the second heat exchanger (104) through the third check valve (153) of the bridge circuit (106).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) passes through the second four-way switching valve (140) from the second port (142) to the third port (143), and then to the compressor (101). Inhaled.
- the refrigerant drawn into the compressor (101) is discharged after being compressed.
- the refrigerant radiates heat to the second air after passing through the adsorption elements (81, 82). That is, the second air is humidified by the adsorption elements (81, 82), further heated by the first heat exchanger (103), and then supplied to the room.
- the refrigerant circulating in the refrigerant circuit (100) absorbs heat from the first air in the second heat exchanger (104), and absorbs heat in the regenerative heat exchanger (102). 2 Dissipate heat to air. That is, heat is recovered from the first air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the regenerative heat exchanger (102). Used for heating the second air.
- the humidity control device of the present embodiment performs each of the above-described operation operations. According to the present embodiment, the same effects as those of the third embodiment can be obtained. ⁇ Embodiment 5 of the invention>
- Embodiment 5 of the present invention is obtained by changing the configuration of the refrigerant circuit (100) in Embodiment 1 described above.
- the configuration other than the refrigerant circuit (100) is the same as that of the first embodiment.
- the refrigerant circuit (100) of the present embodiment is a closed circuit filled with the refrigerant.
- the refrigerant circuit (100) includes a compressor (101), a regenerative heat exchanger (102), a first heat exchanger (103), a second heat exchanger (104), a receiver (105), and a bridge circuit ( 1 06) is provided. Further, the refrigerant circuit (100) is provided with one four-way switching valve (120) and two electric expansion valves (111, 112). In the refrigerant circuit (100), a vapor compression refrigeration cycle is performed by circulating the refrigerant.
- the discharge side of the compressor (101) is connected to one end of the regenerative heat exchanger (102).
- the other end of the regenerative heat exchanger (102) is connected to one end of the first electric expansion valve (111).
- the other end of the first electric expansion valve (111) is connected to the first port (121) of the four-way switching valve (120).
- the four-way switching valve (120) has a second port (122) at one end of the second heat exchanger (104), a third port (123) at the suction side of the compressor (101), and a fourth port (124). ) Is connected to one end of the first heat exchanger (103)
- the other end of the first heat exchanger (103) and the other end of the second heat exchanger (104) are connected to a bridge circuit (106).
- One end of the second electric expansion valve (112) is connected to the bridge circuit (106) via the receiver (105), and the other end is directly connected to the bridge circuit (106).
- the bridge circuit (106) is composed of four check valves (151 to 154) connected in a bridge.
- this bridge circuit (106) between the first check valve (151) and the second check valve (152), the first heat exchanger (103) is connected to the second check valve (152) and the third check valve.
- the second electric expansion valve (112) is located between the check valves (153), and the second heat exchanger (104) is located between the third check valve (153) and the fourth check valve (154).
- 4 A receiver (105) is connected between the check valve (154) and the first check valve (151).
- the first check valve (151) is installed so as to allow only the flow of the refrigerant from the first heat exchanger (103) to the receiver (105).
- the second check valve (152) is installed so as to allow only the flow of the refrigerant from the second electric expansion valve (112) to the first heat exchanger (103).
- the third check valve (153) is installed so as to allow only the flow of the medium from the second electric expansion valve (112) to the second heat exchanger (104).
- the fourth check valve (154) is installed so as to allow only the flow of the refrigerant from the second heat exchanger (104) to the receiver (105).
- the four-way switching valve (120) has a state in which the first port (121) and the second port (122) communicate with each other and the third port (123) and the fourth port (124) communicate with each other. (121) and the fourth port (124) communicate with each other, and the state is switched to a state where the second port (122) and the third port (123) communicate with each other.
- the humidity control apparatus of the present embodiment switches between the dehumidifying operation and the humidifying operation. Further, the humidity control apparatus performs the dehumidification operation and the humidification operation by alternately repeating the first operation and the second operation.
- the operation of the humidity control apparatus is the same as that of the first embodiment except for the operation of the refrigerant circuit (100).
- the operation of the refrigerant circuit (100) of the present embodiment will be described with reference to FIGS.
- the flows of the first air and the second air shown in FIGS. 16 and 17 are for the second operation.
- the four-way switching valve (120) has a first port (121) and a fourth port (124) communicating with each other and a second port (122) and a third port (123) communicating with each other. State.
- the degree of opening of the first electric expansion valve (111) is appropriately adjusted according to the operating conditions, and the second electric expansion valve (112) is fully opened.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes the condenser, and both the first heat exchanger (103) and the second heat exchanger (104) become the evaporator. (See Fig. 16 (a)). Further, the first heat exchanger (103) and the second heat exchanger (104) are in series with each other in the direction of circulation of the refrigerant. That is, in the refrigerant circuit (100) during the second operation, unlike the dehumidification operation of the first embodiment, heat exchange between the refrigerant and the second air is performed in the second heat exchanger (104).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the medium that has flowed into the regenerative heat exchanger (102) exchanges heat with the second air, releases heat to the second air, and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is sent to the electric expansion valve (110). This refrigerant is decompressed when passing through the electric expansion valve (110), and then sent to the first heat exchanger (103) through the four-way switching valve (120).
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the first air, absorbs heat from the first air, and partially evaporates.
- Refrigerant flowing out of the first heat exchanger (103) is sent to the first check valve (151), the receiver (105), the second electric expansion valve (112), and the bridge circuit (106) of the bridge circuit (106) in this order.
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the second air, absorbs heat from the second air, and evaporates.
- the refrigerant flowing out of the second heat exchanger (104) is sucked into the compressor (101) through the four-way switching valve (120).
- the refrigerant drawn into the compressor (101) is discharged after being compressed.
- the refrigerant circulating in the refrigerant circuit (100) during the first operation absorbs heat from the second air in the second heat exchanger (104) and releases heat to the second air in the regenerative heat exchanger (102). That is, heat is recovered from the second air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2 Reused for heating air.
- the four-way switching valve (120) has the first port (121) and the second port (122) communicating with each other and the third port (123) and the fourth port (124) communicating with each other. State.
- the first electric expansion valve (111) is fully opened, and the degree of opening of the second electric expansion valve (112) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, the regenerative heat exchanger (102) Both the first and second heat exchangers (104) become condensers, and the first heat exchanger (103) becomes evaporators (see Fig. 17 (a)). Further, the regenerative heat exchanger (102) and the second heat exchanger (104) are in series with each other in the direction of circulation of the refrigerant. That is, in the refrigerant circuit (100) during the second operation, unlike the dehumidification operation of the first embodiment, heat exchange between the refrigerant and the second air is performed in the second heat exchanger (104).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air, and a part of the refrigerant is condensed.
- the refrigerant flowing out of the regenerative heat exchanger (102) is sequentially sent to the second heat exchanger (104) through the first electric expansion valve (111) and the four-way switching valve (120).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant flowing out of the second heat exchanger (104) is sequentially sent to the second electric expansion valve (112) through the fourth check valve (154) and the receiver (105) of the bridge circuit (106). This refrigerant is decompressed when passing through the second electric expansion valve (112), and then passes through the second check valve (152) of the bridge circuit (106) to the first heat exchanger (103). Sent.
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the first air, absorbs heat from the first air, and evaporates.
- the refrigerant evaporated in the first heat exchanger (103) is sucked into the compressor (101) through the four-way switching valve (120).
- the refrigerant drawn into the compressor (101) is discharged after being compressed.
- both the regenerative heat exchanger (102) and the second heat exchanger (104) were used as condensers, but the regenerative heat exchanger (102) was used as a condenser.
- the heat exchanger (104) can be a subcooler. In this case, all of the gas refrigerant flowing into the regenerative heat exchanger (102) is condensed, and only the liquid refrigerant is sent to the second heat exchanger (104). Then, in the second heat exchanger (104), the inflowing liquid medium dissipates heat to the second air to be in a supercooled state.
- the refrigerant circulating in the refrigerant circuit (100) radiates heat in both the regenerative heat exchanger (102) and the second heat exchanger (104), and then releases the first heat exchanger (103). ). Therefore, a refrigerant having a lower enthalpy is sent to the first heat exchanger (103) serving as an evaporator. ⁇ Humidification operation >>
- the four-way switching valve (120) has the first port (121) and the second port (122) communicating with each other and the third port (123) and the fourth port (124) communicating with each other. State.
- the degree of opening of the first electric expansion valve (111) is appropriately adjusted according to the operating conditions, and the second electric expansion valve (112) is fully opened.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, and both the first heat exchanger (103) and the second heat exchanger (104) become evaporators (Fig. 16). (See (b)). Further, the second heat exchanger (104) and the first heat exchanger (103) are in series with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) during the second operation, unlike the humidification operation of the first embodiment, heat exchange between the refrigerant and the second air is performed in the first heat exchanger (103).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air and condenses.
- the refrigerant condensed in the regenerative heat exchanger (102) is sent to the electric expansion valve (110). This refrigerant is decompressed when passing through the electric expansion valve (110), and then sent to the second heat exchanger (104) through the four-way switching valve (120).
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air, and a part of the refrigerant evaporates.
- the refrigerant flowing out of the second heat exchanger (104) is sent to the fourth check valve (154), the receiver (105), the second electric expansion valve (112), and the bridge circuit (106) of the bridge circuit (106) in this order.
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the second air, absorbs heat from the second air, and evaporates.
- the refrigerant flowing out of the first heat exchanger (103) is sucked into the compressor (101) through the four-way switching valve (120).
- the refrigerant drawn into the compressor (101) is discharged after being compressed.
- the refrigerant circulating in the refrigerant circuit (100) absorbs heat from the first air in the second heat exchanger (104) and releases heat to the second air in the regenerative heat exchanger (102). . That is, heat is recovered from the first air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2Used for air heating.
- the refrigerant radiates heat from the second air after passing through the adsorption element (81, 82). That is, the second air is humidified by the adsorption element (81, 82), and further cooled by the first heat exchanger (103) before being supplied to the room. Therefore, this first operation is suitable for the case where humidification is desired while avoiding a rise in the indoor temperature.
- the four-way switching valve (120) has the first port (121) and the fourth port (124) communicating with each other and the second port (122) and the third port (123) communicating with each other. State.
- the first electric expansion valve (111) is fully opened, and the degree of engagement of the second electric expansion valve (112) is appropriately adjusted according to the operating conditions.
- the compressor (101) When the compressor (101) is operated in this state, the refrigerant circulates in the refrigerant circuit (100) to perform a refrigeration cycle. At that time, in the refrigerant circuit (100), both the regenerative heat exchanger (102) and the first heat exchanger (103) become condensers, and the second heat exchanger (104) becomes evaporators (Fig. 17) (See (b)). Further, the regenerative heat exchanger (102) and the first heat exchanger (103) are in series with each other in the refrigerant circulation direction. That is, in the refrigerant circuit (100) in the second operation operation, unlike the humidification operation in the first embodiment, heat exchange between the refrigerant and the second air is performed in the first heat exchanger (103).
- the refrigerant discharged from the compressor (101) is sent to the regenerative heat exchanger (102).
- the refrigerant flowing into the regenerative heat exchanger (102) exchanges heat with the second air, radiates heat to the second air, and a part of the refrigerant is condensed.
- the refrigerant flowing out of the regenerative heat exchanger (102) is sent to the first heat exchanger (103) through the first electric expansion valve (111) and the four-way switching valve (120) in order.
- the refrigerant flowing into the first heat exchanger (103) exchanges heat with the second air, releases heat to the second air, and condenses.
- Refrigerant flowing out of the first heat exchanger (103) is sequentially returned to the bridge circuit (106) by the first check. It is sent to the second electric expansion valve (112) through the valve (151) and the receiver (105). The coolant is decompressed when passing through the second electric expansion valve (112), and then passes through the third check valve (153) of the bridge circuit (106) to the second heat exchanger (104). Sent.
- the refrigerant flowing into the second heat exchanger (104) exchanges heat with the first air, absorbs heat from the first air and evaporates.
- the refrigerant evaporated in the second heat exchanger (104) is sucked into the compressor (101) through the four-way switching valve (120). The refrigerant drawn into the compressor (101) is discharged after being compressed.
- both the regenerative heat exchanger (102) and the first heat exchanger (103) were used as condensers.
- the heat exchanger (103) can be a subcooler.
- all of the gas refrigerant flowing into the regenerative heat exchanger (102) is condensed, and only the liquid refrigerant is sent to the first heat exchanger (103).
- the inflowing liquid refrigerant dissipates heat to the second air to be in a supercooled state.
- the refrigerant radiates heat to the second air after passing through the adsorption elements (81, 82). That is, the second air is humidified by the adsorption element (81, 82), further heated by the first heat exchanger (103), and then supplied to the room.
- the refrigerant circulating in the refrigerant circuit (100) radiates heat in both the regenerative heat exchanger (102) and the first heat exchanger (103), and then releases the second heat exchanger (100). Sent to 1 04). Therefore, a refrigerant with lower enrubby is fed into the second heat exchanger (104), which is an evaporator.
- the refrigerant circulating in the refrigerant circuit (100) absorbs heat from the first air in the second heat exchanger (104), and absorbs heat in the regenerative heat exchanger (102). Dissipates heat to the second air. That is, heat is recovered from the first air exhausted to the outside in the second heat exchanger (104), and the heat recovered in the second heat exchanger (104) is recovered in the second heat exchanger (102). 2Used for heating air.
- the regeneration heat exchange is performed during the second operation of the dehumidification operation.
- the refrigerant radiates heat to the second air in both the heat exchanger (102) and the second heat exchanger (104).
- the second heat exchanger (104) may be a subcooler, and in such a case, the refrigerant is supercooled at the outlet of the second heat exchanger (104).
- the refrigeration cycle in this case will be described with reference to FIG.
- the refrigerant in the state at the point A discharged from the compressor (101) is radiated to the second air by the regenerative heat exchanger (102) to be in the state at the point B '.
- the refrigerant in this state at the point B ′ is radiated to the second air by the second heat exchanger (104) to be in the state at the point B.
- the refrigerant in the state at the point B is decompressed by the second electric expansion valve (112) to a state at the point C, and thereafter flows into the first heat exchanger (103).
- the refrigerant absorbs heat from the first air and evaporates, and changes from the state at point C to the state at point D.
- the refrigerant in the state at the point D is sucked into the compressor (101) and compressed, and returns to the state at the point A.
- the high-pressure refrigerant after heat release can be set to the state at the point B, which is lower than the state at the point B '. Then, the state of the medium sent to the first heat exchanger (103) serving as the evaporator can be set to the state of point C having a lower enthalpy than the state of point C '. Therefore, by performing this operation, it is possible to reduce the amount of refrigerant of the refrigerant sent to the first heat exchanger (103) serving as an evaporator, and to absorb the refrigerant in the first heat exchanger (103). The cooling capacity can be improved by increasing the amount of heat.
- the refrigerant radiates heat to the second air in both the regenerative heat exchanger (102) and the first heat exchanger (103).
- the first heat exchanger (103) may be a subcooler, and in such a case, the refrigerant is supercooled at the outlet of the first heat exchanger (103).
- the refrigerant in the state at the point A discharged from the compressor (101) is radiated to the second air by the regenerative heat exchanger (102) to be in the state at the point B '.
- the refrigerant in the state of the point B ′ is radiated to the second air in the first heat exchanger (103), and is in the state of the point B.
- the refrigerant in the state at the point B is decompressed by the second electric expansion valve (112) to a state at the point C, and then flows into the second heat exchanger (104).
- the refrigerant absorbs heat from the first air and evaporates, and changes from the state at point C to a state at point D.
- the refrigerant in the state at point D is sucked into the compressor (101) and The state is reduced to point A again.
- the high-pressure refrigerant after heat release can be set to the state of point B, which is lower than the state of point B '. Then, the state of the refrigerant sent to the second heat exchanger (104) serving as the evaporator can be set to the state of point C having a lower enthalpy than the state of point C '.
- the evaporation temperature of the refrigerant in the second heat exchanger (104) can be set high without reducing the amount of heat absorbed by the refrigerant in the second heat exchanger (104) serving as the evaporator. can do. Therefore, frost formation in the second heat exchanger (104) can be prevented, and interruption of the humidification operation due to defrost can be avoided to improve the humidification capacity. Furthermore, under operating conditions where there is no fear of frost formation, the amount of refrigerant sent to the second heat exchanger (104), which is the evaporator, is reduced to reduce the amount of refrigerant in the second heat exchanger (104). By increasing the amount of heat absorbed by the refrigerant, the amount of heating of the second air in the regenerative heat exchanger (102) and the first heat exchanger (103) can be increased.
- the refrigerant circuit (100) of the present embodiment is configured such that both the first heat exchanger (103) and the second heat exchanger (104) become evaporators, and the first heat exchanger (103) 2 It is configured to be able to switch between the operation in which the refrigerant flows into the heat exchanger (104) and the operation in which the refrigerant flows from the second heat exchanger (104) to the first heat exchanger (103) (see Fig. 16). ). Therefore, during the dehumidifying operation, the refrigerant having the lowest ruby can be supplied to the first heat exchanger (103), and the amount of heat absorbed by the refrigerant in the first heat exchanger (103) is secured to sufficiently supply the first air. It can be cooled down.
- the refrigerant that has already absorbed heat in the second heat exchanger (104) can be supplied to the first heat exchanger (103), and dew condensation occurs in the second heat exchanger (104), causing the second heat exchanger (104) to condense. This can prevent the water content from decreasing.
- the refrigerant circuit (100) of the present embodiment is in a state where both the first heat exchanger (103) and the second heat exchanger (104) are evaporators (that is, the first operation operation of the dehumidification operation or the humidification operation). In such a case, an operation may be performed to reduce the capacity of the heat exchangers (103, 104) located on the downstream side.
- a pipe that bypasses the first or second heat exchanger (103, 104) on the downstream side is provided, and the refrigerant circulating through the refrigerant circuit (100) is provided. Only a part is supplied to the first or second heat exchanger (103, 104) on the downstream side.
- the refrigerant circuit (100) performing the first operation of the dehumidifying operation only a part of the refrigerant flowing out of the first heat exchanger (103) is introduced into the second heat exchanger (104). Only part of the refrigerant absorbs heat from the second air in the second heat exchanger (104).
- the refrigerant circuit (100) of the present modified example may have the following configuration. That is, when the first or second heat exchangers (103, 104) are configured to have a plurality of paths and distribute the refrigerant to each path, the refrigerant circuit (100) is provided with the first or second heat exchanger. The refrigerant may be introduced into only a part of the paths of the exchanger (103, 104). For example, in the refrigerant circuit (100) that performs the first operation of the dehumidification operation, the refrigerant that has flowed out of the first heat exchanger (103) is introduced into only a part of the path of the second heat exchanger (104).
- the heat exchange between the refrigerant and the second air is performed only in a part of the second heat exchanger (104), not in the whole.
- the refrigerant is introduced into all the paths of the second heat exchanger (104) and the refrigerant is exchanged with air in the entire second heat exchanger (104). The amount of heat absorbed by the refrigerant in the second heat exchanger (104) is reduced.
- the heat exchanger (103 , 104) during operation in which both the first heat exchanger (103) and the second heat exchanger (104) which are in series with each other become evaporators, the heat exchanger (103 , 104), the amount of heat absorbed by the refrigerant can be reduced. For this reason, the amount of heat absorbed by the refrigerant in the first and second heat exchangers (103, 104), which are both evaporators, and the amount of heat released by the refrigerant in the regenerative heat exchanger (102), which is a condenser, The balance can be achieved, and a stable refrigeration cycle can be performed in the refrigerant circuit (100).
- the following operation may be performed during the first operation of the humidification operation. That is, the second electric expansion valve (112) may be set to a predetermined opening degree instead of setting the second electric expansion valve (112) to the fully open state during the first operation operation.
- the second electric expansion valve (112) may be set to a predetermined opening degree instead of setting the second electric expansion valve (112) to the fully open state during the first operation operation.
- the refrigeration cycle when the second electric expansion valve (112) is set to a predetermined opening This will be described with reference to FIG.
- the refrigerant in the state at the point A discharged from the compressor (101) is radiated to the second air by the regenerative heat exchanger (102) to be in the state at the point B.
- the refrigerant in the state at the point B is decompressed by the first electric expansion valve (111) to the state at the point C.
- the refrigerant in the state at point C absorbs heat from the first air in the second heat exchanger (104) and evaporates, and is in the state at point D.
- the refrigerant in the state at the point D is decompressed by the second electric expansion valve (112) to be in the state at the point E.
- the refrigerant in the state at the point E absorbs heat from the second air in the first heat exchanger (103) and evaporates, and the state at the point F is reached.
- the refrigerant in the state at the point F is sucked into the compressor (101) and compressed, and returns to the state at the point A.
- the refrigerant evaporation temperature in the first heat exchanger (103) and the refrigerant evaporation temperature in the second heat exchanger (104) can be individually set. Accordingly, it is possible to prevent frost formation in the second heat exchanger (104) by setting only the refrigerant evaporation temperature in the second heat exchanger (104) higher. In this case, it is desirable to take measures to reduce the amount of heat absorbed by the refrigerant in the first heat exchanger (103) as in the first modification.
- the above embodiment may have the following configuration.
- a dehumidification circulation operation and a humidification circulation operation may be performed in addition to the dehumidification operation and the humidification operation.
- the first operation and the second operation are alternately repeated as in the dehumidification operation and the humidification operation.
- a description will be given of a case where the present modified example is applied to the first embodiment.
- the first operation of the dehumidifying circulation operation will be described with reference to FIGS.
- an adsorption operation for the first adsorption element (81) and a reproduction operation for the second adsorption element (82) are performed. That is, in the first operation, the air is dehumidified by the first adsorption element (81), and at the same time, the adsorbent of the second adsorption element (82) is regenerated.
- the first right opening (21) and the first upper left opening (25) are in communication with each other, and the remaining openings (22, 23, 24, 26) are in communication. ) Is shut off.
- the lower outdoor channel (42) and the right channel (51) communicate with each other through the first right opening (21), and the upper left channel (55) communicates with the outdoor channel through the first upper left opening (25).
- the upper flow path (41) is communicated.
- the second upper right opening (33) and the second lower right opening (34) are in communication with each other, and the remaining openings (31, 32, 35, 36) are in a closed state.
- the upper right flow path (53) and the indoor upper flow path (46) communicate with each other through the second upper right opening (33), and the indoor lower flow path (47) through the second lower right opening (34).
- the shirt on the right side (61) is closed, and the shirt on the left side (62) is open.
- the left part of the regenerative heat exchanger (102) in the central flow path (57) and the lower left flow path (56) are communicated via the left shirt (62).
- the first air taken into the casing (10) flows into the lower right channel (54) from the indoor lower channel (47) through the second lower right opening (34).
- the second air taken into the casing (10) flows from the lower outdoor passage (42) through the first right opening (21) into the right passage (51).
- the first air in the lower right flow path (54) flows into the humidity control side passage (85) of the first adsorption element (81). While flowing through the humidity control side passage (85), the water vapor contained in the first air is adsorbed by the adsorbent. The first air dehumidified by the first adsorption element (81) flows into the upper right channel (53).
- the second air in the right flow path (51) flows into the cooling-side passage (86) of the first adsorption element (81). While flowing through the cooling-side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity-controlling passage (85). That is, the second air flows through the cooling-side passage (86) as a cooling fluid.
- the second air that took away the heat of adsorption It flows into the central channel (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) to the lower left channel (56).
- the second air heated by the first adsorption element (81) and the regenerative heat exchanger (102) is introduced into the humidity control passage (85) of the second adsorption element (82).
- the adsorbent is heated by the second air, and water vapor is released from the adsorbent. That is, the regeneration of the second adsorption element (82) is performed.
- the water vapor desorbed from the adsorbent flows into the upper left channel (55) together with the second air.
- the dehumidified first air that has flowed into the upper right flow path (53) is sent into the indoor upper flow path (46) through the second upper right opening (33).
- the first air passes through the first heat exchanger (103) while flowing through the indoor-side upper flow path (46), and is cooled by heat exchange with the refrigerant. Thereafter, the dehumidified and cooled first air is supplied indoors through the indoor-side outlet (14).
- the second air flowing into the upper left flow path (55) flows into the outdoor upper flow path (41) through the first upper left opening (25).
- the second air passes through the second heat exchanger (104) while flowing through the outdoor-side upper flow path (41).
- the second heat exchanger (104) is at rest and the second air is neither heated nor cooled.
- the second air used for cooling the first adsorbing element (81) and regenerating the second adsorbing element (82) is discharged outside through the outdoor air outlet (16).
- the second operation of the dehumidifying circulation operation will be described with reference to FIGS.
- the suction operation for the second suction element (82) and the regenerating operation for the first suction element (81) are performed, contrary to the first operation. That is, in the second operation, the air is dehumidified by the second adsorption element (82), and at the same time, the adsorbent of the first adsorption element (81) is regenerated.
- the first left opening (22) and the first upper right opening (23) are in communication with each other, and the remaining openings (21, 24, 25, 26) are open. ) Is shut off.
- the lower outdoor channel (42) and the left channel (52) are connected by the first left opening (22), and the upper channel (53) is connected to the outdoor channel by the first upper right opening (23).
- the upper flow path (41) is communicated.
- the second upper left opening (35) and the second lower left opening (36) are in communication with each other, and the remaining openings (31, 32, 33, 34) are in a closed state.
- the upper left flow path (55) communicates with the indoor upper flow path (46) through the second upper left opening (35), and the indoor lower flow path (47) through the second lower left opening (36).
- the lower left channel (56) is communicated.
- the left shirt evening (62) is closed and the right shirt evening (61) is open.
- the right part of the regenerative heat exchanger (102) and the lower right flow path (54) in the central flow path (57) are communicated via the right shirt (61).
- the first air taken into the casing (10) flows into the lower left flow path (56) from the indoor lower flow path (47) through the second lower left opening (36).
- the second air taken into the casing (10) flows from the lower outdoor passage (42) through the first left opening (22) into the left passage (52).
- the first air in the lower left flow path (56) flows into the humidity control side passage (85) of the second adsorption element (82). While flowing through the humidity control side passage (85), the water vapor contained in the first air is adsorbed by the adsorbent. The first air dehumidified by the second adsorption element (82) flows into the upper left flow path (55).
- the second air in the left flow path (52) flows into the cooling-side passage (86) of the second adsorption element (82). While flowing through the cooling-side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity-controlling passage (85). That is, the second air flows through the cooling-side passage (86) as a cooling fluid.
- the second air which has lost the heat of adsorption, flows into the central channel (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) to the lower right channel (54).
- the second air heated by the second adsorption element (82) and the regenerative heat exchanger (102) is introduced into the humidity control side passage (85) of the first adsorption element (81).
- the adsorbent is heated by the second air, and water vapor is released from the adsorbent. That is, the regeneration of the first adsorption element (81) is performed.
- the water vapor desorbed from the adsorbent flows into the upper right channel (53) together with the second air.
- the dehumidified first air that has flowed into the upper left flow path (55) is It is sent to the indoor upper channel (46) through the upper opening (35).
- the first air passes through the first heat exchanger (103) while flowing through the indoor-side upper flow path (46), and is cooled by heat exchange with the refrigerant. Thereafter, the dehumidified and cooled first air is supplied indoors through the indoor-side outlet (14).
- the second air flowing into the upper right flow path (53) flows into the outdoor upper flow path (41) through the first upper right opening (23).
- the second air passes through the second heat exchanger (104) while flowing through the outdoor-side upper flow path (41).
- the second heat exchanger (104) is at rest and the second air is neither heated nor cooled.
- the second air used for cooling the second adsorbing element (82) and regenerating the first adsorbing element (81) is discharged outside through the outdoor air outlet (16).
- the first operation of the humidification circulation operation will be described with reference to FIGS.
- an adsorption operation for the first adsorption element (81) and a reproduction operation for the second adsorption element (82) are performed. That is, in the first operation, the air is humidified by the second adsorption element (82), and the adsorbent of the first adsorption element (81) adsorbs water vapor.
- the first upper right opening (23) and the first lower right opening (24) are in communication with each other, and the remaining openings (21, 22, 25, 26) are in communication. ) Is shut off.
- the upper right channel (53) communicates with the outdoor upper channel (41) through the first upper right opening (23), and the outdoor lower channel (42) is connected through the first lower right opening (24). And the lower right channel (54).
- the second right opening (31) and the second upper left opening (35) are in communication with each other, and the remaining openings (32, 33, 34, 36) are in a closed state.
- the indoor lower passage (47) and the right passage (51) communicate with each other through the second right opening (31).
- the second upper left opening (35) connects the upper left channel (55) to the indoor upper channel (46).
- the shirt on the right side (61) is closed, and the shirt on the left side (62) is open.
- the left part of the regenerative heat exchanger (102) in the central flow path (57) and the lower left flow path (56) are communicated via the left shirt (62).
- the first air taken into the casing (10) flows from the lower outdoor channel (42) through the first lower right opening (24) into the lower right channel (54).
- the second air taken into the casing (10) flows into the right flow path (51) from the indoor lower flow path (47) through the second right opening (31).
- the first air in the lower right flow path (54) flows into the humidity control side passage (85) of the first adsorption element (81). While flowing through the humidity control side passage (85), the water vapor contained in the first air is adsorbed by the adsorbent. The first air deprived of moisture by the first adsorption element (81) flows into the upper right channel (53).
- the second air in the right flow path (51) flows into the cooling-side passage (86) of the first adsorption element (81). While flowing through the cooling-side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity-controlling passage (85). That is, the second air flows through the cooling-side passage (86) as a cooling fluid.
- the second air which has lost the heat of adsorption, flows into the central channel (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) to the lower left channel (56).
- the second air heated by the first adsorption element (81) and the regenerative heat exchanger (102) is introduced into the humidity control passage (85) of the second adsorption element (82).
- the adsorbent is heated by the second air, and water vapor is released from the adsorbent. That is, the regeneration of the second adsorption element (82) is performed. Then, the water vapor desorbed from the adsorbent is provided to the second air, and the second air is humidified.
- the second air humidified by the second adsorption element (82) then flows into the upper left channel (55).
- the second air flowing into the upper left flow path (55) flows into the indoor upper flow path (46) through the second upper left opening (35).
- the second air passes through the first heat exchanger (103) while flowing through the indoor-side upper flow path (46).
- the first heat exchanger (103) is dormant and the second air is neither heated nor cooled.
- the humidified second air is supplied indoors through the indoor-side outlet (14).
- the first air flowing into the upper right channel (53) is sent to the outdoor upper channel (41) through the first upper right opening (23).
- the first air passes through the second heat exchanger (104) while flowing through the outdoor-side upper flow path (41), and is cooled by heat exchange with the refrigerant. After that, the first air deprived of moisture and heat is discharged outside through the outdoor outlet (16).
- the second operation of the humidification circulation operation will be described with reference to FIGS.
- the suction operation for the second adsorption element (82) and the reproduction operation for the first adsorption element (81) are performed in reverse to the first operation. That is, in the second operation, the air is humidified by the first adsorption element (81), and the adsorbent of the second adsorption element (82) adsorbs water vapor.
- the first upper left opening (25) and the first lower left opening (26) are in communication with each other, and the remaining openings (21, 22, 23, 24) ) Is shut off.
- the upper left flow path (55) and the outdoor upper flow path (41) are communicated by the first upper left opening (25), and the outdoor lower flow path (42) is communicated by the first lower left opening (26).
- the lower left channel (56) is communicated.
- the second left opening (32) and the second upper right opening (33) are in communication with each other, and the remaining openings (31, 34, 35, 36) are in a closed state.
- the indoor lower flow path (47) and the left flow path (52) are communicated by the second left opening (32), and the upper right flow path (53) is connected to the indoor side by the second upper right opening (33).
- the upper flow path (46) is communicated.
- the left shirt evening (62) is closed and the right shirt evening (61) is open.
- the right part of the regenerative heat exchanger (102) in the central flow path (57) and the lower right flow path (54) are communicated via the right shirt (61).
- the first air taken into the casing (10) flows into the lower left channel (56) from the outdoor lower channel (42) through the first lower left opening (26).
- the second air taken into the casing (10) flows from the indoor lower flow path (47) through the second left opening (32) into the left flow path (52).
- the first air in the lower left flow path (56) flows into the humidity control side passage (85) of the second adsorption element (82).
- the humidity control side passage (85) While flowing through the humidity control side passage (85), the water vapor contained in the first air is adsorbed by the adsorbent.
- the first air deprived of moisture by the second adsorption element (82) flows into the upper left flow path (55).
- the second air in the left flow path (52) flows into the cooling-side passage (86) of the second adsorption element (82). While flowing through the cooling-side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity-controlling passage (85). That is, the second air flows through the cooling-side passage (86) as a cooling fluid.
- the second air which has lost the heat of adsorption, flows into the central channel (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) to the lower right channel (54).
- the second air heated by the second adsorption element (82) and the regenerative heat exchanger (102) is introduced into the humidity control side passage (85) of the first adsorption element (81).
- the adsorbent is heated by the second air, and water vapor is released from the adsorbent. That is, the regeneration of the first adsorption element (81) is performed. Then, the water vapor desorbed from the adsorbent is provided to the second air, and the second air is humidified.
- the second air humidified by the first adsorption element (81) then flows into the upper right channel (53).
- the second air flowing into the upper right channel (53) flows into the indoor upper channel (46) through the second upper right opening (33).
- the second air passes through the first heat exchanger (103) while flowing through the indoor-side upper flow path (46).
- the first heat exchanger (103) is at rest, and the second air is neither heated nor cooled.
- the humidified second air is supplied indoors through the indoor-side outlet (14).
- the first air flowing into the upper left flow path (55) is sent into the outdoor upper flow path (41) through the first upper left opening (25).
- the first air passes through the second heat exchanger (104) while flowing through the outdoor-side upper flow path (41), and is cooled by heat exchange with the catalyst. After that, the first air deprived of moisture and heat is discharged outside through the outdoor outlet (16).
- the operation of the refrigerant circuit (100) will be described with reference to FIGS. 24 and 25.
- the flows of the first air and the second air shown in FIGS. 24 and 25 are those during the second operation.
- the operation of the refrigerant circuit (100) during the dehumidifying circulation operation is the same as the operation during the dehumidifying operation in the first embodiment. That is, as shown in FIG. 24 (a), in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, the first heat exchanger (103) becomes an evaporator, and the second heat exchange The vessel (104) goes into a sleep state.
- the first operation operation of the refrigerant circuit (100) during the humidification operation is the same as the operation during the humidification operation in the first embodiment. That is, as shown in FIG. 24 (b), in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, the second heat exchanger (104) becomes an evaporator, and the first heat exchanger The exchanger (103) goes into a dormant state.
- the second operation operation of the refrigerant circuit (100) during the humidification operation is the same as the operation during the dehumidification operation in the first embodiment. That is, as shown in FIG. 25, in the refrigerant circuit (100), the regenerative heat exchanger (102) becomes a condenser, the first heat exchanger (103) becomes an evaporator, and the second heat exchanger (104). ) Is in a dormant state. Then, in the regenerative heat exchanger (102), the refrigerant exchanges heat with the second air and condenses, and in the first heat exchanger (103), the refrigerant exchanges heat with the second air and evaporates. By this second operation, the second air cooled after being humidified can be supplied to the room.
- the regenerative heat exchanger (102) may be installed in a state of being laid almost horizontally.
- the differences of the humidity control apparatus according to the present modification from the above embodiment will be described.
- the central flow path (57) has a square cross-sectional shape that appears in Figs. 26 and 27.
- the regenerative heat exchanger (102) is provided so as to partition this central channel (57) up and down.
- the regenerative heat exchanger (102) is arranged so that its upper surface is slightly lower than the lower surfaces of the first and second adsorption elements (81, 82).
- the right shirt (61) partitions the lower part of the regenerative heat exchanger (102) in the central flow path (57) from the lower right flow path (54). I have.
- the left shirt (62) partitions between the lower part of the regenerative heat exchanger (102) in the central flow path (57) and the lower left flow path (56).
- FIG. 26 shows a state in the first operation of the dehumidifying operation. Further, in FIG. 27, the state at the time of the first operation is shown in FIG. 27 (a), and the state at the time of the second operation is shown in FIG. 27 (b).
- the regenerative heat exchanger (102) When the regenerative heat exchanger (102) is arranged as in the present modification, restrictions when installing the humidity control device are reduced. That is, in the maintenance work of the humidity control device, the first and second suction elements (81, 82) may be removed from the casing (10). On the other hand, in the humidity control apparatus of this modification, the regenerative heat exchanger (102) is arranged below the adsorption elements (81, 82). Therefore, if one of the left and right sides of the casing (10) is opened, it is possible to remove both of the suction elements (81, 82). Therefore, this humidity control device can be installed even when, for example, the left or right side surface of the casing (10) is in close contact with the wall.
- the entire refrigerant circuit (100) is housed inside the casing (10).
- a part of the refrigerant circuit (100) is housed in the casing (10).
- a compressor unit in which only the compressor (101) is housed may be formed separately from the casing (10) of the humidity control device.
- the closed circuit refrigerant circuit (100) is connected to the compressor (101) in the compressor unit and the regenerative heat exchanger (102) in the casing (10) by connecting pipes. It is formed.
- the refrigerant circuit (100) includes air other than the first air and the second air.
- a heat exchanger that becomes the evaporator by exchanging heat with the refrigerant may be added. Further, the added heat exchanger may be housed in the compressor unit together with the compressor (101).
- both the dehumidifying operation and the humidifying operation are possible in the humidity control device.
- the humidity control device may be configured to perform only the humidification operation.
- the first partition (20) has the first right opening (21), the first left opening (22), the first left opening (22). Only the upper right opening (23) and the first upper left opening (25) are formed, and the first lower right opening (24) and the first lower left opening (26) are not formed.
- the second partition plate (30) only the second upper right opening (33), the second lower right opening (34), the second upper left opening (35), and the second lower left opening (36) are formed. The second right opening (31) and the second left opening (32) are not formed.
- the only heat exchangers provided in the refrigerant circuit (100) are the regenerative heat exchanger (102) and the second heat exchanger (104), and the first heat exchanger (103) is provided in the refrigerant circuit (100). ). Then, the humidity control apparatus of this modification performs the humidification operation by alternately repeating the first operation and the second operation.
- the present invention is useful for a humidity control device for adjusting the humidity of air.
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Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003244345A AU2003244345A1 (en) | 2002-02-04 | 2003-01-30 | Humidity conditioning device |
| CNB038032546A CN100334399C (zh) | 2002-02-04 | 2003-01-30 | 调湿装置 |
| US10/503,211 US7318320B2 (en) | 2002-02-04 | 2003-01-30 | Humidity control apparatus |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-26268 | 2002-02-04 | ||
| JP2002026268 | 2002-02-04 | ||
| JP2002114825A JP3695417B2 (ja) | 2002-02-04 | 2002-04-17 | 調湿装置 |
| JP2002-114825 | 2002-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003067160A1 true WO2003067160A1 (fr) | 2003-08-14 |
Family
ID=27736424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/000944 WO2003067160A1 (fr) | 2002-02-04 | 2003-01-30 | Dispositif de conditionnement de l'humidite |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7318320B2 (ja) |
| JP (1) | JP3695417B2 (ja) |
| CN (1) | CN100334399C (ja) |
| AU (1) | AU2003244345A1 (ja) |
| WO (1) | WO2003067160A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2006018746A1 (en) * | 2004-08-18 | 2006-02-23 | Arcelik Anonim Sirketi | A cooling device |
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| JP3624910B2 (ja) * | 2003-05-27 | 2005-03-02 | ダイキン工業株式会社 | 調湿装置 |
| JP4525138B2 (ja) * | 2004-03-31 | 2010-08-18 | ダイキン工業株式会社 | 調湿装置 |
| JP3864982B2 (ja) * | 2005-05-30 | 2007-01-10 | ダイキン工業株式会社 | 空調システム |
| JP3891207B2 (ja) * | 2005-06-17 | 2007-03-14 | ダイキン工業株式会社 | 調湿装置 |
| JP4311488B2 (ja) * | 2007-06-12 | 2009-08-12 | ダイキン工業株式会社 | 調湿装置 |
| KR100808013B1 (ko) | 2007-06-14 | 2008-02-28 | 강신태 | 이원화된 냉동사이클을 구비한 냉동제습 장치 및 이를이용한 건조기 |
| JP4321650B2 (ja) * | 2007-12-07 | 2009-08-26 | ダイキン工業株式会社 | 調湿装置 |
| JP5397107B2 (ja) * | 2009-09-09 | 2014-01-22 | 株式会社デンソー | 調湿換気装置 |
| EP2741019B1 (en) * | 2011-07-27 | 2019-09-04 | Mitsubishi Electric Corporation | Humidity controller and air conditioning system |
| US9976822B2 (en) * | 2012-03-22 | 2018-05-22 | Nortek Air Solutions Canada, Inc. | System and method for conditioning air in an enclosed structure |
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| US20160146479A1 (en) * | 2013-06-28 | 2016-05-26 | Daikin Industries, Ltd. | Dehumidification device and dehumidification system |
| RS56955B1 (sr) * | 2015-04-22 | 2018-05-31 | Privredno Drustvo Za Pruzanje Usluga Iz Oblasti Automatike I Programiranja Synchrotek D O O | Kgh sistem putničkog odeljka vozila sa promenom topologije vazdušnog toka |
| KR101667979B1 (ko) * | 2015-06-19 | 2016-10-21 | 한국생산기술연구원 | 제습 및 가습 기능을 갖는 공기조화기와 이를 이용한 제습냉방 및 가습난방 방법 |
| JP2018179362A (ja) * | 2017-04-07 | 2018-11-15 | ダイキン工業株式会社 | 調湿ユニット |
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| JP2000337657A (ja) | 1999-05-24 | 2000-12-08 | Ebara Corp | 除湿装置及び除湿方法 |
| JP2000346396A (ja) | 1999-06-10 | 2000-12-15 | Ebara Corp | 除湿方法及び除湿装置 |
| JP2001074275A (ja) | 1999-09-02 | 2001-03-23 | Ebara Corp | 除湿装置 |
-
2002
- 2002-04-17 JP JP2002114825A patent/JP3695417B2/ja not_active Expired - Fee Related
-
2003
- 2003-01-30 CN CNB038032546A patent/CN100334399C/zh not_active Expired - Fee Related
- 2003-01-30 US US10/503,211 patent/US7318320B2/en not_active Expired - Fee Related
- 2003-01-30 AU AU2003244345A patent/AU2003244345A1/en not_active Abandoned
- 2003-01-30 WO PCT/JP2003/000944 patent/WO2003067160A1/ja active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05200238A (ja) * | 1992-01-27 | 1993-08-10 | Matsushita Electric Ind Co Ltd | 除加湿装置 |
| JP2001263732A (ja) * | 2000-03-24 | 2001-09-26 | Daikin Ind Ltd | 調湿システム |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006018746A1 (en) * | 2004-08-18 | 2006-02-23 | Arcelik Anonim Sirketi | A cooling device |
| US9261297B2 (en) | 2004-08-18 | 2016-02-16 | Yalcin Guldali | Cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100334399C (zh) | 2007-08-29 |
| JP2003294268A (ja) | 2003-10-15 |
| US20050150237A1 (en) | 2005-07-14 |
| US7318320B2 (en) | 2008-01-15 |
| CN1628230A (zh) | 2005-06-15 |
| AU2003244345A1 (en) | 2003-09-02 |
| JP3695417B2 (ja) | 2005-09-14 |
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