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WO2019050077A1 - Système de pompe à chaleur multiple à source de chaleur multiple d'un fonctionnement de stockage à froid de source de chaleur d'air ou d'un fonctionnement de stockage de chaleur et d'un fonctionnement simultané de stockage à froid de source de chaleur d'eau et de stockage de chaleur ou d'un fonctionnement simultané de stockage de chaleur et de stockage de froid, et procédé de commande - Google Patents

Système de pompe à chaleur multiple à source de chaleur multiple d'un fonctionnement de stockage à froid de source de chaleur d'air ou d'un fonctionnement de stockage de chaleur et d'un fonctionnement simultané de stockage à froid de source de chaleur d'eau et de stockage de chaleur ou d'un fonctionnement simultané de stockage de chaleur et de stockage de froid, et procédé de commande Download PDF

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Publication number
WO2019050077A1
WO2019050077A1 PCT/KR2017/010327 KR2017010327W WO2019050077A1 WO 2019050077 A1 WO2019050077 A1 WO 2019050077A1 KR 2017010327 W KR2017010327 W KR 2017010327W WO 2019050077 A1 WO2019050077 A1 WO 2019050077A1
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WO
WIPO (PCT)
Prior art keywords
heat
valve
refrigerant
air
check valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2017/010327
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English (en)
Korean (ko)
Inventor
오순환
곽명아
고창성
김창준
설현철
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTS Co Ltd
Original Assignee
MTS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020170113981A external-priority patent/KR101961169B1/ko
Priority claimed from KR1020170113982A external-priority patent/KR101961170B1/ko
Application filed by MTS Co Ltd filed Critical MTS Co Ltd
Publication of WO2019050077A1 publication Critical patent/WO2019050077A1/fr
Priority to PH12020500437A priority Critical patent/PH12020500437A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • 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
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • 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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Definitions

  • the present invention uses four types of operation modes based on heat storage base, cooling base, air heat source base and hydrothermal source while using the air heat source of outdoor side and the water heat source of indoor side as separate type, Each base mode can be selectively switched among each other, and automatic switching is possible using the four sides and the electronic valve in each base of the thermal storage alone, thermal storage alone, thermal storage cooldown, simultaneous thermal storage and defrost operation modes. Cooling water is supplied to the evaporator and the cold water is supplied to the evaporator, and the air heat source and the water heat source are used as the heat source of the heat pump. To provide a multi-heat source multi-heat pump and its control method for recovering waste heat discharged as hot water, will be.
  • thermal energy is obtained by burning a combustible material or by using electricity, chemical action, or reaction.
  • the methods of obtaining thermal energy by such combustion, action and reaction are such that the obtained heat energy is stored in a heat storage device or converted into a usable state and then used as a means for drying, cooling, heating or heating.
  • the method of obtaining the thermal energy by the electrical and chemical action is significantly less pollutant production than the method of burning the combustible material.
  • it since it requires a substance or apparatus for reaction, when it is desired to obtain a large amount of heat energy
  • the volume of the device is increased and the device for the device is complicated and bloated due to the necessity of safety, and there is a problem that the thermal energy to be obtained is smaller than the volume of the facility.
  • An outdoor heat source and an air heat source heat pump are known to solve the above problems.
  • the heat pump absorbs heat in the air and compresses it in the compressor to generate a high temperature compressed gas including the shaft force to raise the temperature of the water or to heat the heat exchanged condensation heat to the atmosphere. Is the same as the refrigeration cycle using the evaporation heat, and is constituted by the reverse cycle using the condensation heat in the high temperature maintenance.
  • the heat pump has a water heat exchange system and an air heat source exchange system according to the heat exchange method of the evaporator.
  • the heat pump is an air heat source exchange type
  • the air heat source heat pump when the air heat source heat pump is operated, when the refrigerant is evaporated under low temperature and low pressure using the sensible heat of the air in the heat source evaporator, air is passed
  • the heat pump when the heat pump is a water heat exchange type, the water that is a heating medium is passed through the evaporator, the water is heat exchanged while the heating medium passes through the condenser, and the evaporated refrigerant is guided to the compressor. Which is located in the condenser, to heat the heating equipment to be heated.
  • the air heat source heat pump as described above includes a compressor, a condenser, an expansion valve, and an air heat source evaporator connected through a refrigerant circulation line to form a cycle.
  • the air heat source heat pump When the air heat source heat pump is operated, The refrigerant compressed in the high pressure gas refrigerant is compressed by the condenser and condensed into the high temperature and high pressure liquid refrigerant while the refrigerant circulates through the condenser to heat the refrigerant and heat the condenser.
  • the heat of vaporization of the refrigerant necessary for vaporization is absorbed from the outside, so that the air heat source
  • the gas refrigerant of low temperature and low pressure that has passed through the air heat source evaporator is sucked and compressed by the compressor so that continuous heat exchange is performed in the air heat source evaporator during the above- .
  • the refrigerant temperature of the air heat source evaporator is taken up from the outside air (external air) sucked for heat exchange with the air heat source evaporator to rise (about 5 ⁇ )
  • the refrigerant is sucked into the compressor and compressed into a gas refrigerant of high temperature and high pressure.
  • the air temperature is lower than 5 ⁇ , the refrigerant can not be vaporized into a complete gas and it is sucked into the liquid refrigerant in a particle state such as mist. .
  • the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a heat pump apparatus and a heat pump apparatus which use the air heat source and the heat source as heat sources, It has 4 types of operation modes and controllable selectively. By using four sides and electronic valves, it is possible to automatically switch the mode of heat storage single, condensation single, heat accumulation simultaneous operation, simultaneous accumulation heat accumulation and defrost operation mode in each base By making control possible,
  • the hot water is applied to the cooling load by the hot-cooling-based operation mode and at the same time the hot water is produced on the side of the condenser without a separate gas heat source hot water supply device and is applied to the heating load by the heat- And an operation mode based on a hydrothermal source capable of producing hot water and cold water at the same time, respectively.
  • the defrost operation mode is operated, And the refrigerant is operated until all of the refrigerant is removed by the high temperature refrigerant, and the refrigerant is operated until all of the refrigerant is removed, and the four types of base heat storage, cold storage, air heat source, Simultaneously, the necessary operation mode in the defrosting operation mode is switched from the low compression ratio by using the four sides and the electronic valve Group may even provides automatic switching and operation chuknaeng air source that can be used or the heat storage operation and the sequence circle multiple ten won multi heat pump system and a control method having a heat storage chuknaeng simultaneous operation or heat storage operation chuknaeng simultaneously be stopped.
  • the present invention as a means for solving the above problems,
  • the heat storage-based operation mode for supplying hot water is composed of heat storage single operation, storage heat storage simultaneous operation and defrost operation mode,
  • the high-pressure and high-temperature refrigerant discharged from the compressor 10 passes through the water-cooled condenser (a) through the four sides 20 and supplies hot water to the water heat source in the water- ,
  • the refrigerant condensed through the water-cooled condenser (a) flows to the fourth check valve (C4), and the other direction is formed so as not to flow due to the second check valve (C2) in the refrigerant reverse flow direction,
  • the refrigerant passing through the four check valve C4 is branched and passes through each of the sub heat exchangers 40 and is subcooled by the electronic expansion valve 1 (45) so as to further secure the air heat in the evaporator.
  • the first valve V1 is opened without passing through the electronic expansion valve 2 50.
  • the heat storage and cooling operation mode simultaneously supplying the hot water and the cold water is the same as the heat storage single operation until the refrigerant condensed in the water-cooled condenser (a) passes through the sub heat exchanger (40)
  • the third valve V3 is opened and the first valve V1 and the second valve V2 are closed and the refrigerant passes through the water-cooled evaporator b
  • the fourth valve V4 is closed and the fifth valve V5 is opened so that the refrigerant heat exchanged through the four sides 20 is sucked into the compressor 10,
  • the four sides 20 When the defrosting operation condition is satisfied in the air-cooled evaporator (d), the four sides 20 operate in a reverse cycle mode of the heat storage based operation mode, and the four sides
  • the fifth valve V5 is closed and the fourth valve V4 is opened to serve as the air-cooling type condenser c, and at the same time, the high-temperature refrigerant is supplied to the outside air pin Remove,
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45
  • the refrigerant flows into the second check valve V2 after the pressure is reduced to the low pressure through the electronic expansion valve 2 50.
  • the refrigerant flows in the refrigerant forward direction To the first check valve (C1) and the fourth check valve (C4).
  • the refrigerant passing through the second check valve (C2) is formed at a low pressure, So that the refrigerant is evaporated in the water-cooled evaporator (b) which is the hydrothermal source due to the high pressure at each rear end, and the defrosted refrigerant is repeatedly configured to be sucked into the compressor (10) And,
  • the cold-cooling-based operation mode in which cold water is supplied is constituted by a simultaneous cooling operation mode and a simultaneous cold storage mode operation mode,
  • the four sides 20 are operated and the fifth valve V5 is closed through the four sides 20 of the high pressure and high temperature refrigerant discharged from the compressor 10,
  • the valve V4 is opened, the refrigerant is condensed through the air-cooled condenser c,
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45
  • the refrigerant flows into the second check valve V2 after the pressure is reduced to the low pressure through the electronic expansion valve 2 50.
  • the refrigerant flows in the refrigerant forward direction To the first check valve (C1) and the fourth check valve (C4).
  • the refrigerant passing through the second check valve (C2) is formed at a low pressure,
  • the refrigerant is evaporated in the water-cooled evaporator (b) which is the hydrothermal source, and the refrigerant heat-exchanged through the four sides 20 is sucked into the compressor 10 again,
  • the four-way valve 20 operates in the coaxial heat storage simultaneous operation mode in which the cold water and the hot water are supplied at the same time, and the fourth valve V4 through the four sides 20 where the refrigerant of high pressure and high temperature discharged from the compressor 10 is operated
  • the first valve V1 and the second valve V2 are closed and the third valve V3 is closed while the fifth valve V5 is opened and the refrigerant is condensed through the water-cooled condenser a
  • the refrigerant condensed in the water-cooled condenser (a) flows to the third check valve (C3), and the other direction is due to the first check valve (C1) and the fourth check valve (C4) in the refrigerant reverse flow direction
  • the refrigerant having passed through the third check valve C3 is branched so as to pass through each of the sub heat exchangers 40 and to further secure the air heat in the evaporator by the electronic expansion valve 1 45
  • the air heat source based operation mode for supplying only hot water or cold water is the same as the heat accumulation and cooling operation based mode.
  • the four sides (20) are operated to automatically switch to the hot water cooling operation mode Lt; / RTI >
  • the heat-source-based operation mode in which the hot water and the cold water are supplied at the same time, Mode.
  • the mode is operated in the heat-storage-cooling mode and the simultaneous operation mode in the heat-storage-based mode. It is operated in the simultaneous operation mode,
  • the air heat source and the heat source are used as the heat source of the heat pump and the four operation modes based on the heat storage base, the cooling base, the air heat source base and the heat source base can be selectively switched and used mutually.
  • the compressor 10 is operated at low compression ratios using the four sides 20 and the first to fifth valves V1 to V5 at the low compression ratio, ) Is not stopped but is continuously driven by automatic switching.
  • the present invention is characterized in that heat storage-based operation mode control for supplying hot water is constituted by heat storage single operation, storage heat storage simultaneous operation, and defrost operation mode control,
  • the high-pressure and high-temperature refrigerant discharged from the compressor 10 passes through the water-cooled condenser (a) through the four sides 20 and the hot water is supplied to the water heat source (S110);
  • the first valve V1 is opened without passing through the electronic expansion valve 2 50 and the second valve V2 and the third valve V3 are closed, 3 (60), the pressure is reduced to a low pressure, and then the air is evaporated in the air-cooled evaporator (c) (S130);
  • the fourth valve V4 is opened, the fifth valve V5 is closed, and the heat-exchanged refrigerant is sucked into the compressor 10 through the four sides 20 (S140); Lt; / RTI >
  • the simultaneous operation of regenerating the hot and cold water simultaneously with the hot water and the cold water is the same as the operation of storing heat until the refrigerant condensed in the water-cooled condenser (a) passes through the sub heat exchanger (40)
  • the third valve V3 is opened, the first valve V1 and the second valve V2 are closed, (S210) through evaporation through a water-cooled evaporator (b);
  • the fourth valve V4 is closed, the fifth valve V5 is opened, and the heat-exchanged refrigerant is sucked into the compressor 10 through the four sides 20 (S220); Lt; / RTI >
  • the four sides 20 operate in a reverse cycle mode of the heat storage-based operation mode control, and the refrigerant discharged from the compressor 10,
  • the fifth valve V5 is closed and the fourth valve V4 is opened to serve as the air-cooling type condenser c, and at the same time, the high-temperature refrigerant is supplied, (S310);
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45 (S320);
  • the refrigerant flows to the second check valve V2 after the pressure is reduced to a low pressure through the electronic expansion valve 2 (50), and the other direction flows through the first check valve C1
  • the refrigerant passing through the second check valve C2 is prevented from passing through due to the high pressure at the rear end because the refrigerant passing through the second check valve C2 is low in pressure and evaporated in the water- (S330);
  • Cooling-based operation mode control for supplying cold water is composed of simultaneous cooling and simultaneous operation mode control of the combined heat and cold storage,
  • the cold storage single operation control for supplying the cold water operates the four sides 20 and the fifth valve V5 is closed through the four sides 20 where the high temperature and high temperature refrigerant discharged from the compressor 10 is operated, 4 valve (V4) is opened and the refrigerant is condensed through the air-cooled condenser (c) (S410);
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45
  • a step of subcooling (S420) so as to secure more;
  • the refrigerant flows to the second check valve V2 after the pressure is reduced to a low pressure through the electronic expansion valve 2 (50), and the other direction flows through the first check valve C1
  • the refrigerant passing through the second check valve C2 is prevented from passing through due to the high pressure at the rear end because the refrigerant passing through the second check valve C2 is low in pressure and evaporated in the water- (S430);
  • the cold storage and simultaneous operation mode control simultaneously supplying the cold water and the hot water operates the four sides 20 and operates the fourth valve V4 through the four sides 20 on which the refrigerant of high pressure and high temperature discharged from the compressor 10 is operated,
  • the fifth valve V5 is opened, and the refrigerant is condensed through the water-cooled condenser a (S510);
  • the first valve V1 and the second valve V2 are closed and the third valve V3 is opened so that the refrigerant condensed in the water-cooled condenser a flows to the third check valve C3, Direction is formed to be prevented from flowing due to the first check valve C1 and the fourth check valve C4 in the refrigerant reverse flow direction and the refrigerant passing through the third check valve C3 is branched, A step (S520) of subcooling through the heat exchanger (40) so as to further secure the air heat in the evaporator by the electronic expansion valve (1) (45);
  • the refrigerant flows to the second check valve V2 after the pressure is reduced to a low pressure through the electronic expansion valve 2 (50), and the other direction flows through the first check valve C1
  • the refrigerant passing through the second check valve C2 is prevented from passing through due to the high pressure at the rear end because the refrigerant passing through the second check valve C2 is low in pressure and evaporated in the water- (S530);
  • the air heat source based operation mode control that supplies only hot water or cold water is the same as the heat mode control based on heat storage and hot air cooling.
  • the cold water based operation mode Control can be automatically switched,
  • the heat source based operation mode control that simultaneously supplies hot water and cold water uses the water-cooled condenser (a) and water-cooled evaporator (b) of the indoor unit without going through the outdoor unit, And simultaneous operation mode control.
  • the regeneration mode is operated by the regenerative cooling and simultaneous operation mode control, and the refrigerant flow is switched by operating the four sides (20)
  • simultaneous selection of heat storage based mode control In case of simultaneous selection of heat storage based mode control,
  • the air heat source and the heat source are used as the heat source of the heat pump and the four operation modes based on the heat storage base, the cooling base, the air heat source base and the hydrothermal source can be selectively switched between mutually operating modes
  • the control of the defrosting operation mode is performed at the low compression ratio using the four sides 20 and the first to fifth valves V1 to V5, And the compressor (10) is continuously driven by automatic switching without stopping.
  • the air heat source on the outdoor side and the indoor heat source on the indoor side are used in a separate type, while the air heat source and the water heat source are used simultaneously.
  • Based operation mode, and each base mode can be selectively switched between each other.
  • the heat storage alone, the cooling storage single, the storage heat cooing To provide an efficient refrigerant system operation that can be used for automatic switching without stopping the compressor at a low compression ratio.
  • the existing heat pump equipment is provided with two separate products for producing cold water and hot water.
  • the present invention does not require a chiller or a separate gas heat source hot water supply device, It is possible to produce hot water and cold water at the same time to reduce facility investment cost and operating cost, and to maximize the merits of heat source heat pump and air heat source heat pump, multi heat source multi heat Pump system and a control method thereof.
  • FIG. 1 is a configuration and a refrigerant flow diagram of an embodiment showing a heat storage operation mode using an air heat source according to the present invention
  • FIG. 2 is a configuration and a refrigerant flow diagram of an embodiment showing a simultaneous heat storage and cooling operation mode using a hydrothermal source according to the present invention
  • FIG. 3 is a configuration and a refrigerant flow diagram of an embodiment showing a supercooling operation mode and a defrosting operation mode using an air heat source according to the present invention.
  • FIG. 4 is a configuration and a refrigerant flow diagram of an embodiment showing a simultaneous operation mode of cooing and storing heat using a hydrothermal source according to the present invention
  • P1 first pressure sensor (low pressure)
  • P2 second pressure sensor (high pressure)
  • V2 second valve
  • V3 third valve
  • V4 fourth valve
  • V5 fifth valve
  • T1 Water-cooled condenser intake temperature sensor
  • T2 Water-cooled evaporator intake temperature sensor
  • T3 outdoor temperature sensor
  • the present invention has the following features in order to achieve the above object.
  • the multi-heat source multi-heat pump system according to the present invention has the following embodiments.
  • the heat storage-based operation mode for supplying hot water is composed of heat storage single operation, storage heat storage simultaneous operation, and defrost operation mode,
  • the high-pressure and high-temperature refrigerant discharged from the compressor 10 passes through the water-cooled condenser (a) through the four sides 20 and supplies hot water to the water heat source in the water- ,
  • the refrigerant condensed through the water-cooled condenser (a) flows to the fourth check valve (C4), and the other direction is formed so as not to flow due to the second check valve (C2) in the refrigerant reverse flow direction,
  • the refrigerant passing through the four check valve C4 is branched and passes through each of the sub heat exchangers 40 and is subcooled by the electronic expansion valve 1 (45) so as to further secure the air heat in the evaporator.
  • the first valve V1 is opened without passing through the electronic expansion valve 2 50.
  • the second valve V2 and the third valve V3 are closed and the electronic expansion valve 3 And then the fourth valve (V4) is opened, the fifth valve (V5) is closed, and the heat-exchanged refrigerant is supplied to the four sides (20 And then sucked into the compressor 10,
  • the heat storage and cooling simultaneous operation mode in which the hot water and the cold water are simultaneously supplied is the same as the heat storage single operation until the refrigerant condensed in the water-cooled condenser (a) passes through the sub heat exchanger (40)
  • the third valve V3 is opened and the first valve V1 and the second valve V2 are closed and passed through the water-cooled evaporator b which is the hydrothermal heat source
  • the fourth valve V4 is closed and the fifth valve V5 is opened and the heat exchanged refrigerant is sucked into the compressor 10 through the four sides 20,
  • the four sides 20 When the defrosting operation condition is satisfied in the air-cooled evaporator (d), the four sides 20 operate in a reverse cycle mode of the heat storage based operation mode, and the four sides
  • the fifth valve V5 is closed and the fourth valve V4 is opened to serve as the air-cooling type condenser c, and at the same time, the high-temperature refrigerant is supplied to the outside air pin Remove,
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45
  • the refrigerant flows into the second check valve V2 after the pressure is reduced to the low pressure through the electronic expansion valve 2 50.
  • the refrigerant flows in the refrigerant forward direction To the first check valve (C1) and the fourth check valve (C4).
  • the refrigerant passing through the second check valve (C2) is formed at a low pressure, So that the refrigerant is evaporated in the water-cooled evaporator (b), which is the hydrothermal heat source, and the heat exchanged refrigerant is sucked into the compressor (10) through the four sides (20) will be.
  • the cold-cooling-based operation mode in which cold water is supplied is constituted by a simultaneous cooling operation mode and a simultaneous cold storage mode operation mode,
  • the four sides 20 are operated and the fifth valve V5 is closed through the four sides 20 of the high pressure and high temperature refrigerant discharged from the compressor 10,
  • the valve V4 is opened, the refrigerant is condensed through the air-cooled condenser c,
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45
  • the refrigerant flows into the second check valve V2 after the pressure is reduced to the low pressure through the electronic expansion valve 2 50.
  • the refrigerant flows in the refrigerant forward direction To the first check valve (C1) and the fourth check valve (C4).
  • the refrigerant passing through the second check valve (C2) is formed at a low pressure, (B), and the heat-exchanged refrigerant is sucked into the compressor (10) after passing through the four sides (20).
  • the four-way valve 20 operates in the coaxial heat storage simultaneous operation mode in which the cold water and the hot water are supplied at the same time, and the fourth valve V4 through the four sides 20 where the refrigerant of high pressure and high temperature discharged from the compressor 10 is operated
  • the first valve V1 and the second valve V2 are closed and the third valve V3 is closed while the fifth valve V5 is opened and the refrigerant is condensed through the water-cooled condenser a
  • the refrigerant condensed in the water-cooled condenser (a) flows to the third check valve (C3), and the other direction is due to the first check valve (C1) and the fourth check valve (C4) in the refrigerant reverse flow direction
  • the refrigerant having passed through the third check valve C3 is branched so as to pass through each of the sub heat exchangers 40 and to further secure the air heat in the evaporator by the electronic expansion valve 1 45
  • the air heat source based operation mode for supplying only hot water or cold water is the same as the heat accumulation and cooling operation based mode.
  • the four sides (20) are operated to automatically switch to the hot water cooling operation mode Lt; / RTI >
  • the heat-source-based operation mode in which the hot water and the cold water are supplied at the same time, Mode.
  • the mode is operated in the heat-storage-cooling mode and the simultaneous operation mode in the heat-storage-based mode. It is operated in the simultaneous operation mode,
  • the air heat source and the heat source are used as the heat source of the heat pump.
  • the four types of operation modes based on heat storage base, cooling base, air heat source base and hydrothermal source can be selectively switched.
  • the compressor 10 is operated at low compression ratios using the four sides 20 and the first to fifth valves V1 to V5 at the low compression ratio, ) Is not stopped but is continuously driven by automatic switching.
  • the temperature sensors T1 and T2 are provided at the inlet side of the water-cooled condenser (a) and the water-cooled evaporator (b), and the temperature of the temperature sensors T1 and T2 is set to a preset storage temperature or a preset temperature
  • the compressor 10 can be stopped or the compressor 10 can be operated when the temperature of the temperature sensors T1 and T2 does not satisfy the preset storage temperature or the preset cooling temperature .
  • the first and second pressure sensors P1 and P2 are provided at the front and rear ends of the compressor 10 and the inlet side temperature sensors T1 and T2 of the water-cooled condenser a and the water- And the outdoor air temperature sensor (T3) is installed on the side of the air-cooled evaporator (d), and it is possible to change the temperature according to the ratio between the preset high pressure and the preset low pressure,
  • control method of the multi-heat source multi-heat pump system according to the present invention has the following embodiments.
  • the present invention utilizes an air heat source and a hydrothermal source as a heat source of a heat pump, and has a structure capable of selectively operating four operation mode controls based on heat storage base, cooling base, air heat source base and hydrotherm source,
  • the operation mode control is characterized in that it is possible to automatically switch to each other.
  • the present invention is characterized in that heat storage-based operation mode control for supplying hot water is constituted by heat storage single operation, storage heat storage simultaneous operation, and defrost operation mode control,
  • the high-pressure and high-temperature refrigerant discharged from the compressor 10 passes through the water-cooled condenser (a) through the four sides 20 and the hot water is supplied to the water heat source (S110);
  • the first valve V1 is opened without passing through the electronic expansion valve 2 50 and the second valve V2 and the third valve V3 are closed, 3 (60), the pressure is reduced to a low pressure, and then the air is evaporated in the air-cooled evaporator (c) (S130);
  • the fourth valve V4 is opened, the fifth valve V5 is closed, and the heat-exchanged refrigerant is sucked into the compressor 10 through the four sides 20 (S140); Lt; / RTI >
  • the simultaneous operation of regenerating the hot and cold water simultaneously with the hot water and the cold water is the same as the operation of storing heat until the refrigerant condensed in the water-cooled condenser (a) passes through the sub heat exchanger (40)
  • the third valve V3 is opened, the first valve V1 and the second valve V2 are closed, (S210) through evaporation through a water-cooled evaporator (b);
  • the fourth valve V4 is closed, the fifth valve V5 is opened, and the heat-exchanged refrigerant is sucked into the compressor 10 through the four sides 20 (S220); Lt; / RTI >
  • the four sides 20 operate in a reverse cycle mode of the heat storage-based operation mode control, and the refrigerant discharged from the compressor 10,
  • the fifth valve V5 is closed and the fourth valve V4 is opened to serve as the air-cooling type condenser c, and at the same time, the high-temperature refrigerant is supplied, (S310);
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45 (S320);
  • the refrigerant flows to the second check valve V2 after the pressure is reduced to a low pressure through the electronic expansion valve 2 (50), and the other direction flows through the first check valve C1
  • the refrigerant passing through the second check valve C2 is prevented from passing through due to the high pressure at the rear end because the refrigerant passing through the second check valve C2 is low in pressure and evaporated in the water- (S330);
  • Cooling-based operation mode control for supplying cold water is composed of simultaneous cooling and simultaneous operation mode control of the combined heat and cold storage,
  • the cold storage single operation control for supplying the cold water operates the four sides 20 and the fifth valve V5 is closed through the four sides 20 where the high temperature and high temperature refrigerant discharged from the compressor 10 is operated, 4 valve (V4) is opened and the refrigerant is condensed through the air-cooled condenser (c) (S410);
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45
  • a step of subcooling (S420) so as to secure more;
  • the refrigerant flows to the second check valve V2 after the pressure is reduced to a low pressure through the electronic expansion valve 2 (50), and the other direction flows through the first check valve C1
  • the refrigerant passing through the second check valve C2 is prevented from passing through due to the high pressure at the rear end because the refrigerant passing through the second check valve C2 is low in pressure and evaporated in the water- (S430);
  • the cold storage and simultaneous operation mode control simultaneously supplying the cold water and the hot water operates the four sides 20 and operates the fourth valve V4 through the four sides 20 on which the refrigerant of high pressure and high temperature discharged from the compressor 10 is operated,
  • the fifth valve V5 is opened, and the refrigerant is condensed through the water-cooled condenser a (S510);
  • the first valve V1 and the second valve V2 are closed and the third valve V3 is opened so that the refrigerant condensed in the water-cooled condenser a flows to the third check valve C3, Direction is formed to be prevented from flowing due to the first check valve C1 and the fourth check valve C4 in the refrigerant reverse flow direction and the refrigerant passing through the third check valve C3 is branched, A step (S520) of subcooling through the heat exchanger (40) so as to further secure the air heat in the evaporator by the electronic expansion valve (1) (45);
  • the refrigerant flows to the second check valve V2 after the pressure is reduced to a low pressure through the electronic expansion valve 2 (50), and the other direction flows through the first check valve C1
  • the refrigerant passing through the second check valve C2 is prevented from passing through due to the high pressure at the rear end because the refrigerant passing through the second check valve C2 is low in pressure and evaporated in the water- (S530);
  • the air heat source based operation mode control that supplies only hot water or cold water is the same as the heat mode control based on heat storage and hot air cooling.
  • the cold water based operation mode Control can be automatically switched,
  • the heat source based operation mode control that simultaneously supplies hot water and cold water uses the water-cooled condenser (a) and water-cooled evaporator (b) of the indoor unit without going through the outdoor unit, And simultaneous operation mode control.
  • the regeneration mode is operated by the regenerative cooling and simultaneous operation mode control, and the refrigerant flow is switched by operating the four sides (20)
  • simultaneous selection of heat storage based mode control In case of simultaneous selection of heat storage based mode control,
  • the air heat source and the heat source are used as the heat source of the heat pump and the four operation modes based on the heat storage base, the cooling base, the air heat source base and the hydrothermal source can be selectively switched between mutually operating modes
  • the control of the defrosting operation mode is performed at the low compression ratio using the four sides 20 and the first to fifth valves V1 to V5, And the compressor (10) is continuously driven by automatic switching without stopping.
  • the air conditioner (d) is configured to be separated from the indoor unit (Indoor) except for the outdoor unit and the air-cooled evaporator (d) It is easy to install even in a narrow space because it is composed of only a pipe. When connecting to a separate indoor unit, it can be easily configured for long distance by connecting only copper pipe, communication line and power line. . ≪ / RTI >
  • the present invention is also characterized in that temperature sensors T1 and T2 are provided on the water inlet side of the water-cooled condenser a and the water-cooled evaporator b, The compressor 10 is stopped when the cold temperature is satisfied,
  • the compressor 10 can be continuously operated without stopping the operation of the compressor.
  • the first and second pressure sensors P1 and P2 are installed at the front and rear ends of the compressor 10 and the inlet side temperature sensors T1 and T2 of the water-cooled condenser a and the water- And the outdoor air temperature sensor T3 is provided on the side of the air-cooled evaporator (d), and it is possible to change the temperature according to the ratio between the preset high pressure and the preset low pressure, ,
  • FIGS. 1, 2, 3 to 4 a multi-heat source multi-heat pump system having an air heat source cold storage operation or a heat storage operation and a heat source heat accumulation heat accumulation heat accumulation operation or an accumulation heat accumulation heat accumulation operation operation according to a preferred embodiment of the present invention, The control method will be described in detail.
  • heat storage based operation mode heat storage based operation mode control
  • the high-pressure and high-temperature refrigerant discharged from the compressor 10 passes through the water-cooled condenser a through the four sides 20 and supplies the hot water to the water heat source in the water-cooled condenser a (step S110)
  • the refrigerant condensed through the water-cooled condenser (a) flows to the fourth check valve (C4), and the other direction is formed so as not to flow due to the second check valve (C2) in the refrigerant reverse flow direction,
  • the refrigerant having passed through the four check valve C4 is branched and subcooled so as to further secure the air heat in the evaporator by the electronic expansion valve 1 (45) through each of the sub heat exchangers 40 (step S120)
  • the first valve V1 is opened without passing through the electronic expansion valve 2 50 and the second valve V2 and the third valve V3 are closed and the electronic expansion valve 3
  • the air is evaporated in the air-cooled evaporator (d) (step S130)
  • the refrigerant condensed in the water-cooled condenser (a) passes through the sub-heat exchanger (40) until the refrigerant passes through the electronic expansion valve (2) (50)
  • the third valve V3 is opened and the first valve V1 and the second valve V2 are closed and evaporated through the water-cooled evaporator b, which is a hydrothermal source, in step S210,
  • the fourth valve V4 is closed and the fifth valve V5 is opened so that the heat exchanged refrigerant is sucked into the compressor 10 through the four sides 20.
  • operation S220
  • Cooled evaporator not the air-cooled evaporator shown in FIG. 1, and supplies the cold water from the hot water supply of the existing water-cooled condenser.
  • the fourth valve V5 is closed and the fourth valve V4 is opened through the four sides 20 on which the refrigerant of high pressure and high temperature discharged from the compressor 10 is operated, , The air-cooled condenser (c), and the refrigerant is condensed (step S410)
  • the refrigerant condensed through the air-cooled condenser c flows to the fifth check valve C5 having a small resistance.
  • the first valve V1 and the third valve V3 are closed and the second valve V2 is closed.
  • the refrigerant having passed through the fifth check valve C5 flows to the third check valve C3 and the other direction is connected to the first check valve C1 and the fourth check valve
  • the refrigerant passing through the third check valve C3 is branched and flows through each of the sub heat exchangers 40 and the air heat is discharged from the evaporator by the electronic expansion valve 1 45 (Step S420). Then,
  • the refrigerant flows back to the second check valve V2 after the pressure is reduced to a low pressure through the electronic expansion valve 2 50.
  • the other direction is the first check valve C1 in the refrigerant forward direction,
  • the refrigerant passing through the second check valve C2 is low in pressure and is prevented from passing through due to the high pressure at the rear end thereof and is evaporated in the water-cooled evaporator (b) (Step S430)
  • the reverse cycle of the heat-storage-based operation mode (heat storage-based operation mode control)
  • the fifth valve V5 is closed and the fourth valve V4 is opened via the four sides 20 of the high pressure and high temperature refrigerant discharged from the compressor 10, (c).
  • the high-temperature refrigerant is supplied to remove the gaps formed in the outer air pins, and the cycle is repeatedly operated until all the gaps are removed (step S310)
  • the configuration and operation are the same as those of the regenerative hot-water-cooled simultaneous operation mode (regenerated hot-water-cooled simultaneous operation mode control) in Fig. 2 described above.
  • the flow of refrigerant is reversed by switching the four sides 20, Cooled evaporator (b) to pass through the water-cooled evaporator (b), as opposed to a simultaneous heat and cold storage operation mode (storage heat and cold storage simultaneous operation mode control) in which the high-pressure and high- It is the opposite of flow.
  • the water-cooled condenser (a), which functions as a heat storage function, and the water-cooled evaporator (b) Function is reversed, so that it is possible to have simultaneous operation of simultaneous storage and simultaneous storage (control of simultaneous operation of simultaneous storage and storage).
  • the air-cooled evaporator (d) is configured to separate the remaining components except the outdoor unit and the air-cooled evaporator (d) into indoor units, and functions as a hydrothermal heat pump It is possible to use the heat source based mode and it can perform all the functions of the heat source and the heat source heat pump when installing the outdoor unit.
  • the outdoor unit is composed only of the air-cooling type evaporator (d), so it can be easily installed in a small space when installing an outdoor unit. When connecting to a separate indoor unit, only the copper pipe, communication line and power line are connected. And has a detachable structure with features such as reduced installation time and lower installation cost.
  • the technical features of the present invention have a structure capable of selectively operating four types of operation modes (operation mode control) based on heat storage base, cooling cooling base, air heat source base, and hydrothermal source.
  • temperature sensors T1 and T2 are provided on the water intake side of the water-cooled condenser (a) and water-cooled evaporator (b), and when the temperature of the temperature sensors T1 and T2 satisfies a preset storage temperature or a preset temperature The compressor 10 is stopped,
  • the compressor 10 can be continuously operated without stopping the operation of the compressor.
  • the first and second pressure sensors P1 and P2 are provided at the front and rear ends of the compressor 10 and the inlet side temperature sensors T1 and T2 of the water-cooled condenser a and the water- Installed,
  • pre-set high pressure and preset low pressure it can be switched or taken depending on the temperature and outside temperature, 4 kinds of base heat storage, cold storage, air heat source, thermal storage alone in the heat source base, And the automatic mode switching control is performed in the operation mode (single storage, single cooling, single storage heat storage, simultaneous accumulation and storage, and defrost operation mode control)
  • the first pressure sensor P1 (low pressure sensor) is provided in the front end channel of the compressor 10 in addition to the ON / OFF selection control of the first to fifth valves V1 to V5 and the first to fifth valves V1 to V5, Cooled condenser (a) and water-cooled evaporator (b), and the air-cooled evaporator (d) are provided with a second pressure sensor P2 (high pressure sensor) (T3) is installed, and it can be switched according to the ratio of preset high pressure and preset low pressure, or four kinds of heat storage, cold storage, air heat source, heat storage alone in the base of hydrothermal source, Simultaneous, coaxial heat storage simultaneous, defrost operation mode (thermal storage alone, thermal storage independent, thermal storage simultaneous cooling, Simultaneous cold storage
  • the four types of operation modes (operation mode control) based on the heat storage base, the cooling base, the air heat source base, and the hydrothermal source can be selectively operated as the separated type of the outdoor unit and the indoor unit.
  • Cooling base Cooling single operation, simultaneous cooling and storage
  • Air heat source base Single heat storage operation, single cooling operation, defrosting

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Abstract

La présente invention concerne un système de pompe à chaleur multiple à source de chaleur multiple doté d'un fonctionnement de stockage à froid de source de chaleur d'air ou d'un fonctionnement de stockage de chaleur et d'un fonctionnement simultané de stockage à froid de source de chaleur d'eau et d'un fonctionnement simultané de stockage de chaleur ou d'un fonctionnement de stockage de chaleur, et un procédé de commande associé. Plus particulièrement, l'objectif de la présente invention est de fournir une pompe à chaleur multiple à source de chaleur multiple et son procédé de commande. La pompe à chaleur multiple à source de chaleur multiple utilise une source de chaleur d'air et une source de chaleur d'eau en tant que sources de chaleur d'une pompe à chaleur pour produire de l'eau froide à partir d'un vaporisateur et stocke l'eau froide dans un réservoir de stockage à froid, ce qui permet d'appliquer l'eau froide à une charge de refroidissement, et en même temps, même sans dispositif d'alimentation en eau chaude de source de chaleur à gaz séparé, collecte la chaleur perdue qui est disposée de manière sélective à partir d'un condenseur à refroidissement d'eau et à refroidissement par air pour utiliser la chaleur perdue pour l'alimentation en eau chaude. La présente invention présente une structure dans laquelle la source de chaleur d'air et la source de chaleur d'eau sont utilisées en tant que sources de chaleur de la pompe à chaleur et, lorsqu'elles sont utilisées simultanément, peuvent fonctionner de manière sélective dans un total de quatre types de modes de fonctionnement (commande de mode de fonctionnement), à savoir, les modes de fonctionnement basés sur un stockage de chaleur, sur un stockage à froid, sur une source de chaleur d'air et sur une source de chaleur à l'eau. Ici, la commande de conversion automatique entre le mode de fonctionnement de stockage de chaleur seul, de stockage à froid seul, de stockage de chaleur et de stockage à froid simultanés, de stockage à froid et de stockage de chaleur simultanés, et de dégivrage (commande de mode de fonctionnement de stockage de chaleur uniquement, de stockage à froid uniquement, de stockage de chaleur et de stockage à froid simultanés, de stockage à froid et de stockage de chaleur simultanés, et de dégivrage) dans chaque mode de fonctionnement peut être effectuée à l'aide d'une soupape électronique à quatre voies.
PCT/KR2017/010327 2017-09-06 2017-09-20 Système de pompe à chaleur multiple à source de chaleur multiple d'un fonctionnement de stockage à froid de source de chaleur d'air ou d'un fonctionnement de stockage de chaleur et d'un fonctionnement simultané de stockage à froid de source de chaleur d'eau et de stockage de chaleur ou d'un fonctionnement simultané de stockage de chaleur et de stockage de froid, et procédé de commande Ceased WO2019050077A1 (fr)

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PH12020500437A PH12020500437A1 (en) 2017-09-06 2020-03-04 Multiple heat source multi heat pump system with air heat source cooling operation, air heat source heating operation , water heat source cooling and heating simultaneous heat, water heat source heating and cooling simultaneous operation

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KR1020170113981A KR101961169B1 (ko) 2017-09-06 2017-09-06 공기열원 축냉운전 또는 축열운전과 수열원 축냉축열 동시운전 또는 축열축냉 동시운전을 갖는 다중열원 멀티 히트펌프 시스템
KR10-2017-0113982 2017-09-06
KR10-2017-0113981 2017-09-06
KR1020170113982A KR101961170B1 (ko) 2017-09-06 2017-09-06 공기열원 축냉운전 또는 축열운전과 수열원 축냉축열 동시운전 또는 축열축냉 동시운전을 갖는 다중열원 멀티 히트펌프 시스템의 제어방법

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