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WO2016143924A1 - Système d'eau chaude solaire - Google Patents

Système d'eau chaude solaire Download PDF

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Publication number
WO2016143924A1
WO2016143924A1 PCT/KR2015/002362 KR2015002362W WO2016143924A1 WO 2016143924 A1 WO2016143924 A1 WO 2016143924A1 KR 2015002362 W KR2015002362 W KR 2015002362W WO 2016143924 A1 WO2016143924 A1 WO 2016143924A1
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WO
WIPO (PCT)
Prior art keywords
hot water
heat medium
pipe
heat
storage tank
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/KR2015/002362
Other languages
English (en)
Korean (ko)
Inventor
김순기
배내수
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.)
Kyungdong Navien Co Ltd
Original Assignee
Kyungdong Navien 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
Application filed by Kyungdong Navien Co Ltd filed Critical Kyungdong Navien Co Ltd
Priority to PCT/KR2015/002362 priority Critical patent/WO2016143924A1/fr
Publication of WO2016143924A1 publication Critical patent/WO2016143924A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Definitions

  • the present invention relates to a solar hot water system capable of reliably operating a system by smoothly circulating a heat medium flowing along a heat medium circulation pipe.
  • hot water systems which are used for heating and hot water supply, have been developed mainly in the form of boiler systems that use fuels such as briquettes, oil, gas and electricity.
  • fuels such as briquettes, oil, gas and electricity.
  • hot water systems using solar energy have been developed as part of a plan for depleting fossil fuels and securing alternative energy resources.
  • FIG. 1 is a block diagram of a solar hot water system according to the prior art.
  • the solar hot water system according to the prior art, the solar heat collector 10, the heat medium circulation pipe 20 through which the heat medium passing through it, the heat exchanger 30 through which the heat medium circulation pipe 20 passes, and the hot water inside Heat storage tank 40 accommodated in the, the hot water in the heat storage tank 40 passes through the interior of the heat exchanger 30, the hot water circulation pipe 50 is installed so as to heat exchange with the heat medium, the hot water in the heat storage tank 40 the faucet 62 , A hot water supply pipe 60 connected to be supplied to the faucet side, a boiler 70 for receiving auxiliary water to be supplied by heating the heat storage tank 40 when the solar energy is insufficient, and controlling the overall operation of the hot water system. It comprises 80.
  • the solar collector 10 collects solar heat and transfers solar heat to a heat medium passing therein, and a discharge collector temperature sensor 11 is provided at a discharge side to detect a temperature of the heat medium heated by solar heat.
  • the heat medium circulation pipe 20 is provided with a heat medium circulation pump 21 for pumping the heat medium to circulate, and an expansion tank 22 for absorbing the pressure change of the heat medium.
  • the heating medium supplement pipe 24 connected to the heating medium supplement tank 23 is branched on one side of the heating medium circulation pipe 20, and the heating medium is supplemented on the pipeline of the heating medium supplement pipe 24.
  • the pump 25 is provided.
  • the heat medium circulation pipe 20 is connected to the discharge pipe (26) branched to be connected to the heat medium supplement tank 23, the discharge pipe 26 is a safety valve (27) for preventing a sudden pressure rise of the heat medium Is installed.
  • the heat medium circulation pipe 20 is provided with a pressure gauge 28 for measuring the pressure of the heat medium, and a thermometer for measuring the temperature of the heat medium before and after the heat exchanger 20 and various valves for controlling the flow of the heat medium. Is provided.
  • the heat medium circulation pipe 20 and the hot water circulation pipe 50 are passed through the heat medium and the hot water circulation pipe 50, which flow along the interior of the heat medium circulation pipe 20.
  • Heat transfer fluid for heat exchange is filled between the flowing hot water.
  • the heat storage tank 40 is provided with a heat storage tank upper temperature sensor 41 and a heat storage tank lower temperature sensor 42 for sensing the temperature of the hot water located in the upper and lower, direct water supply pipe 43 in the lower portion of the heat storage tank 40 And the drain pipe 44 are connected.
  • the hot water circulation pipe 50 the hot water circulation pump 51 for pumping the hot water contained in the heat storage tank 40 to be circulated along the hot water circulation pipe 50, and the hot water temperature before and after the passage of the heat exchanger (20).
  • Thermometers for the measurement and various valves for controlling the flow of hot water are provided.
  • the hot water supply pipe 60 one end is connected to the upper portion of the heat storage tank 40 is installed to extend toward the faucet 62, the hot water supply pipe 60 is connected to the inlet of the boiler 70 and the direct water supply pipe 43
  • the first connecting pipe 71 is installed, and the second connecting pipe 72 is installed between the outlet of the boiler 70 and the hot water supply pipe 60.
  • a three-way valve 61 for switching the flow path of hot water is installed at the branch point where the hot water supply pipe 60 and the first connection pipe 71 meet.
  • the heat medium circulation pump 21 and the hot water circulation pump The control unit 51 is operated so as to control the flow path switching operation of the three-way valve 61 and the operation of the boiler 70 by comparing the temperature measured by the heat storage tank upper temperature sensor 41 with the set temperature value. .
  • the controller 80 determines that the temperature of the hot water accommodated in the heat storage tank 40 has sufficient thermal energy to be used as the hot water.
  • the three-way valve 61 is operated so that the hot water discharged from the heat storage tank 40 passes through the hot water supply pipe 60 as it is and is supplied to the faucet 62. Control to stop operation.
  • the hot water heated in the heat storage tank 40 is entirely supplied to the faucet 62 through the hot water supply pipe 60, and the first connection pipe 71, the boiler 70, and the second connection are provided.
  • the water inside the tube 72 remains at a low temperature.
  • the control unit 80 when the temperature measured by the heat storage tank upper temperature sensor 41 is less than the set temperature value, the control unit 80 has a heat energy that the temperature of the hot water accommodated in the heat storage tank 40 is not enough to use as hot water. 2, the hot water discharged from the heat storage tank 40 passes through the first connecting pipe 71, the boiler 70, and the second connecting pipe 72. By switching the flow path of the three-way valve 61 to be supplied to the control at the same time the boiler 70 is ignited. Accordingly, the temperature of the hot water insufficient only by solar energy is supplied after the temperature is raised by heat exchange in the boiler 70.
  • the first connection pipe 71 and the boiler 70 and the second connection pipe are initially provided. Since the low-temperature water remaining in the pipeline of 72 is discharged through the faucet 62, all the low-temperature water remaining is discharged and during the time until the hot water heated by the boiler 70 is supplied. Since low temperature water is supplied to the hot water, there is a problem that a stable hot water supply is not made.
  • Patent Nos. 10-1054503 and 10-1168542 As described above, the prior art of utilizing a boiler as an auxiliary heat source when there is a lack of solar energy is introduced in Patent Nos. 10-1054503 and 10-1168542, but these prior documents supply solar hot water as described above. The configuration for solving the problem of unstable supply of hot water temperature generated when switching to heavy boiler hot water supply is not shown.
  • the heat medium refill pump 25 it is determined whether the heat medium is insufficient through the pressure value measured by the pressure gauge 28, and when the measured pressure value is measured at a value smaller than the reference pressure value, the heat medium is insufficient. Judgment is configured to refill the heat medium by operating the heat medium refill pump 25.
  • the thermal medium is thermally expanded even when the thermal medium is insufficient, and it is difficult to accurately determine whether the thermal medium is insufficient based on the pressure measurement value detected by the pressure gauge 28, and the thermal medium is circulated in a state where the thermal medium is insufficient.
  • the heat medium circulation pump 21 is overloaded, there is a problem in that the solar hot water system cannot be stably operated.
  • Patent No. 10-1322555 discloses a configuration in which a heat medium is configured to pass through a heat medium tank, and a level of the heat medium tank is checked to supplement and supply the heat medium through a water supply pipe when the heat medium is insufficient.
  • Patent No. 10-1168542 discloses a configuration for supplementing and supplying a heat medium stored in a heat medium tank by operating a pressurized pump when there is a lack of heat medium, but these prior art documents detect a lack of heat medium and automatically replenish the heat medium when the heat medium is insufficient. The configuration for doing so is not shown.
  • the present invention has been made to solve the above problems, the solar hot water system to maintain a hot water supply temperature uniformly when switching from the solar hot water supply to the boiler hot water supply of the solar hot water supply to achieve a stable hot water supply
  • the purpose is to provide.
  • Another object of the present invention by accurately detecting the shortage of the heat medium flowing through the heat medium circulation pipe is equipped with an automatic replenishment function of the heat medium so that the heat medium is maintained in a proper state, so that the circulation of the heat medium is smooth and the stable operation of the system is possible To provide a system.
  • the solar heat collector 100 for collecting the heat of the heat to heat the heat medium;
  • a heat medium circulation pipe 200 which connects the outlet side and the inlet side of the solar collector 100 to form a closed circuit in which the heat medium circulates;
  • a heat storage tank 300 having a portion of the heat medium circulation pipe 200 passing through the inside, and performing heat exchange between the heat medium heated by the solar heat and the hot water accommodated therein;
  • Hot water supply unit 400 for supplying hot water of the heat storage tank 300 to the faucet 450 side;
  • a boiler 500 that auxiliaryly heats and supplies hot water of the heat storage tank 300 when the hot water temperature of the heat storage tank 300 is lower than a set temperature.
  • the hot water supply unit 400 includes the heat storage tank 300.
  • Solar hot water discharge pipe 410 is connected to the upper portion of the heat storage tank 300 and the hot water is discharged from the solar hot water discharge pipe 410 is branched to one side to the faucet 450 and the flow of hot water on the pipe line
  • a hot water supply pipe 420 provided with an anisotropic valve 430 to regulate the water
  • a first connection pipe 470 branched to the other side from the solar hot water discharge pipe 410 and connected to an inlet of the boiler 500
  • the boiler It comprises a second connecting pipe 480 for connecting between the outlet of the 500 and the hot water supply pipe 420 of the point spaced to the outlet side of the anisotropic valve 430.
  • the second connection pipe 480 allows a hot water flow in the direction from the outlet of the boiler 500 toward the hot water supply pipe 420, but check valve 490 to block the hot water flow in the opposite direction It may be provided.
  • the heat storage tank 300 is provided with a heat storage tank upper temperature sensor 310 for detecting a temperature of hot water accommodated in the upper portion of the heat storage tank 300, and the temperature detected by the heat storage tank upper temperature sensor 310 is equal to or higher than a set temperature.
  • the anisotropic valve 430 is opened, and when the temperature detected by the heat storage tank upper temperature sensor 310 is less than a set temperature, the anisotropic valve 430 is controlled to be closed and the boiler 500 is ignited. It may be configured to further include a control unit 600 to control to.
  • the hot water received in the heat storage tank 300 is the faucet 450 via the solar hot water discharge pipe 410 and the hot water supply pipe 420.
  • some of the hot water received in the heat storage tank 300 is the solar hot water discharge pipe 410, the first connection pipe 470, the boiler 500, the second connection pipe 480 and the hot water supply pipe 420 It may be supplied to the faucet 450 via.
  • the hot water received in the heat storage tank 300, the solar hot water discharge pipe 410 and the first connection pipe 470 via the boiler 500 May be supplied to the faucet 450 via the second connecting pipe 480 and the hot water supply pipe 420 after being heated by heat exchange in the boiler 500.
  • the lower part of the heat storage tank 300 is connected to the direct water supply pipe 330 to supply the supplemental water
  • the direct water supply pipe 330 is connected to the bypass pipe 460 branched to the hot water supply pipe 420
  • the bypass A mixing valve 440 may be provided at a connection portion between the pass pipe 460 and the hot water supply pipe 420.
  • the heat medium circulation pipe 200 is provided at the inlet side of the heat medium circulation pump 210 and the heat medium circulation pump 210 to circulate the heat medium, and a level sensor 231 for detecting the water level of the heat medium, A radiator 230 including an air vent 232 for separating and discharging the air contained in the heat medium is provided, and the heat medium supplement pipe 250 is branched on one side of the heat medium circulation pipe 200 to heat the heat medium supplement tank 240. Is connected to the heat medium supplement pipe 250, and the heat medium supplement pump 260 for transporting the heat medium stored in the heat medium supplement tank 240 to the heat medium circulation pipe 200, and the heat medium supplement pump 260. A check valve 251 is provided on the outlet side to prevent the heat medium from flowing back to the heat medium supplement tank 240. The heat medium is low when the heat medium is at a low water level based on the level of the heat medium detected by the water level sensor 231. paper
  • the pump 260 may be configured to include a controller 600, which controls to operate.
  • the inlet side heat medium circulation pipe (200c-1) of the water separator 230 is connected to the upper portion of the separator separator 230, the outlet side heat medium circulation pipe (200c-2) of the water separator (230) is the radix It is connected to the lower portion of the separator 230, the water level sensor 231 and the air vent 232 may be provided on the upper side of the inlet-side heat medium circulation pipe (200c-1).
  • the first branch which is branched to one side of the solar hot water discharge pipe is connected to the faucet and installed on the pipeline of the hot water supply pipe, the other side of the solar hot water discharge pipe is connected to the inlet of the boiler
  • the second connecting pipe is connected between the connecting pipe and the hot water supply pipe at the point separated from the outlet of the boiler and the outlet side of the anisotropic valve, so that the flow rate of the hot water even when the solar hot water is supplied, the first connecting pipe and the boiler and the second connecting pipe.
  • a water separator having a water level detection function is provided at the inlet side of the heat medium circulation pump, and the heat medium supplementation pump whose operation is controlled so that the heat medium stored in the heat medium supplement tank is supplemented with the heat medium circulation tube at the low temperature of the heat medium is checked at the outlet side.
  • FIG. 1 is a block diagram showing a hot water supply state using solar heat when the solar energy is sufficient in the solar hot water system according to the prior art
  • FIG. 2 is a block diagram showing a hot water supply state using the boiler when the solar energy in the solar hot water system according to the prior art
  • FIG. 3 is a configuration diagram showing a hot water supply state using solar heat when solar energy is sufficient in a solar hot water system according to an embodiment of the present invention
  • FIG. 4 is a block diagram showing a hot water supply state using the boiler when the solar energy in the solar hot water system according to an embodiment of the present invention
  • FIG. 5 is a control block diagram of a solar hot water system according to an embodiment of the present invention.
  • FIG. 6 is a graph showing a hot water supply state when switching from solar hot water supply to boiler hot water supply in a solar hot water system according to the prior art
  • FIG. 7 is a graph showing a hot water supply state when switching from solar hot water supply to boiler hot water supply in a solar hot water system according to an embodiment of the present invention
  • FIG. 8 is a configuration diagram of a solar hot water system according to another embodiment of the present invention.
  • FIG. 9 is a control block diagram of a solar hot water system according to another embodiment of the present invention.
  • heat storage tank 41 the upper temperature sensor of the heat storage tank
  • drain pipe 50 hot water circulation pipe
  • heat medium circulation pump 220 expansion tank
  • safety valve 280 three-way valve
  • bypass tube 291 radiator
  • heat storage tank 310 heat storage tank upper temperature sensor
  • hot water supply unit 410 solar hot water discharge pipe
  • bypass tube 470 first connector
  • FIG. 3 is a block diagram showing a hot water supply state using solar heat in the solar hot water system according to an embodiment of the present invention
  • Figure 4 is a view of the solar energy in the solar hot water system according to an embodiment of the present invention
  • 5 is a block diagram illustrating a hot water supply state using a boiler when there is a shortage
  • FIG. 5 is a control block diagram of a solar hot water system according to an embodiment of the present invention.
  • a controller 600 for controlling the overall operation of the hot water system.
  • the solar collector 100 collects solar heat and transfers solar heat to a heat medium passing therein, and a discharge collector temperature sensor 110 is provided at a discharge side to detect a temperature of the heat medium heated by solar heat.
  • the heat medium circulation pipe 200 is a heat medium discharge pipe (200a) connected to one end of the heat exchange pipe (200b) via the inside of the heat storage tank (300) at the outlet side of the solar heat collector (100), and the heat exchange pipe (200b)
  • the other end of the heat medium and the heat collector (200c; 200c-1, 200c-2) is connected to the inlet side of the heat collector (100).
  • the heat medium circulation pipe 200, the heat medium circulation pump 210 for pumping the heat medium is circulated, the expansion tank 220 for absorbing the pressure change of the heat medium and the pressure inside the heat medium return pipe (200c) Pressure sensor 201 is installed.
  • the heat medium supplement pipe 250 connected to the heat medium supplement tank 240 is branched on one side of the heat medium return pipe 200c, and the heat medium supplement pump 260 is disposed on the conduit of the heat medium supplement pipe 250. ) Is provided.
  • the heat medium discharge pipe (200a) is connected to the discharge pipe 270 which is branched to be connected to the heat medium supplement tank 240, the discharge pipe 270 is provided with a safety valve 271 for preventing a sudden pressure rise of the heat medium do.
  • the bypass pipe 290 connected to the three-way valve 280 is installed in the heat medium discharge pipe 200a, and the radiator 291 may be installed in the bypass pipe 290. have.
  • the heat storage tank 300 is provided with a heat storage tank upper temperature sensor 310 and a heat storage tank lower temperature sensor 320 for sensing the temperature of the hot water located in the upper and lower.
  • the heat storage tank upper temperature sensor 310 detects the maximum temperature of the hot water accommodated in the heat storage tank 300
  • the heat storage tank lower temperature sensor 320 detects the lowest temperature of the hot water accommodated in the heat storage tank 300.
  • the water supply pipe 330 is connected to the lower portion of the heat storage tank 300.
  • one side of the heat storage tank 300 may be provided with a safety valve 340 and a drain pipe 350 to discharge the superheated steam and hot water so that the pressure of the heat storage tank 300 is properly maintained.
  • the hot water supply unit 400 is connected to the upper portion of the heat storage tank 300, the solar hot water discharge pipe 410 and the hot water discharged from the heat storage tank 300 and branched to one side from the solar hot water discharge pipe 410 faucet 450
  • the first side is connected to the inlet of the boiler 500 is connected to the other side of the hot water supply pipe 420 and the hot water supply pipe 420 is installed on the pipe line is installed on the pipe to regulate the flow of hot water and the solar hot water discharge pipe (410). It comprises a connecting pipe 470, and the second connecting pipe 480 for connecting between the outlet of the boiler 500 and the hot water supply pipe 420 of the point spaced apart from the outlet side of the anisotropic valve 430.
  • the second connection pipe 480 allows a hot water flow in the direction from the outlet of the boiler 500 toward the hot water supply pipe 420, but check valve 490 to block the hot water flow in the opposite direction Is provided.
  • the bypass pipe 460 branched to the hot water supply pipe 420 is connected to the direct water supply pipe 330, and a mixed flow rate of hot water and direct water is connected to the connection portion between the bypass pipe 460 and the hot water supply pipe 420.
  • the mixing valve 440 is provided to adjust the temperature of the hot water discharged through the faucet 450 according to the temperature set by the temperature controller 540.
  • the boiler 500 when the solar energy is insufficient, the auxiliary heat for heating the hot water introduced from the heat storage tank 300 through the first connecting pipe 470, and supplies the heated hot water through the second connecting pipe (480).
  • the heating supply pipe 510 is supplied to the heating load 530 side, the heating return pipe is returned to the heating water via the heating load 530 520 is connected and installed.
  • the controller 600 controls the heating medium circulation pump 210 to operate when the temperature difference between the temperature measured by the collector temperature sensor 110 and the temperature of the hot water measured by the heat storage tank lower temperature sensor 320 is greater than or equal to a set temperature difference. do.
  • the controller 600 compares the temperature measured by the heat storage tank upper temperature sensor 310 with the set temperature value, and controls the opening and closing operation of the anisotropic valve 430 and the ignition operation of the burner provided in the boiler 500.
  • the controller 600 controls the opening degree of the mixing valve 440 to supply hot water at a temperature set by the user in the temperature controller 540, and the pressure of the thermal medium detected by the pressure sensor 230 is less than the set pressure. In this case, it is determined that the flow rate of the heat medium is insufficient to control the heat medium supplement pump 260 to operate.
  • the controller 600 controls the anisotropic valve 430 to be opened.
  • the hot water accommodated in the heat storage tank 300 is supplied to the faucet 450 through the solar hot water discharge pipe 410 and the hot water supply pipe 420 as indicated by the solid arrow in FIG.
  • some of the hot water accommodated in the heat storage tank 300 receives power through the solar hot water discharge pipe 410, the first connection pipe 470, the boiler 500, the second connection pipe 480, and the hot water supply pipe 420. It is supplied to the 450 side.
  • the hot water accommodated in the heat storage tank 300 while the combustion of the boiler 500 is stopped is discharged through the solar hot water discharge pipe 410 and some of the flow rates thereof.
  • the hot water is configured to be joined and supplied to the hot water supply pipe 420 via the first connecting pipe 470 and the boiler 500 and the second connecting pipe 480, so that the first connecting pipe 470 even during solar hot water supply.
  • the boiler 500 and the second connection pipe 480 inside the hot water supplied from the heat storage tank 300 is circulated, unlike the prior art it is possible to prevent the temperature drop of the remaining water.
  • the controller 600 controls the anisotropic valve 430 to be closed so that the solar hot water supply is switched to the boiler hot water supply. Control.
  • the hot water received in the heat storage tank 300 is introduced into the boiler 500 via the solar hot water discharge pipe 410 and the first connection pipe 470, as indicated by arrows in FIG. 4, and the boiler 500 After being heated by the heat exchange at the second connection pipe 480 and the hot water supply pipe 420 via the water supply 450 is supplied to the side.
  • the first connection pipe 470 and the boiler 500 and the second connection pipe 480 are heated to a predetermined temperature. Since the hot water is in a filled state, it is possible to solve the problem that the hot water supply temperature becomes unstable as the temperature of the water remaining in the prior art decreases.
  • Figure 6 is a graph showing the hot water supply state when switching from the solar hot water supply to the boiler hot water supply in the solar hot water system according to the prior art
  • Figure 7 is a switch from solar hot water supply to boiler hot water supply in the solar hot water system according to the present invention Graph showing the state of hot water supply.
  • the heat storage tank upper temperature is 50 °C
  • the heat storage tank lower temperature is 11 °C
  • the outside temperature is set to 15.4 °C
  • boiler temperature regulator set temperature is 50 °C
  • the hot water flow rate was set to be constant.
  • the heat capacity in the graph represents the combustion heat capacity of the boiler.
  • hot water with an average temperature of 48 ° C was supplied from the heat storage tank, and after mixing with direct water for 30 seconds, which was converted from solar hot water to boiler water, the hot water temperature was 40.2 ° C (maximum temperature: 48.1 °C, minimum temperature: 26.8 °C), the temperature difference between the maximum temperature and the minimum temperature can be seen that the difference between 21.3 °C.
  • the hot water temperature after mixing with direct water is 48.2 °C (maximum temperature: 49.1 °C, minimum temperature: 46.6 °C), and the temperature deviation between the maximum and minimum temperature is 2.5 °C, and the boiler is
  • the hot water temperature measured at was controlled to burn on (ON) at 50 ° C. and to shut off (OFF) at 60 ° C.
  • the boiler was repeatedly turned on and off six times after ignition and, upon combustion, provided a minimum heat capacity of up to 24 minutes (boiler direct temperature: 19 ° C) and then a heat capacity of up to 39%.
  • the temperature of the hot water is supplied low by a large deviation in the section (30 seconds) to switch from the solar hot water supply to the boiler hot water supply, which is the first connection pipe 470 before the ignition of the boiler This is because the low temperature water remaining in the pipe in the section between the boiler 500 and the second connection pipe 480 is supplied.
  • the experimental conditions of the solar hot water system according to the present invention, the upper temperature of the heat storage tank 300 is 61 °C, the lower temperature of the heat storage tank 300 is 35 °C, outside temperature is 18.9 °C, boiler temperature controller ( The set temperature of 540 is set to 50 ° C, the hot water flow rate is set to be constantly supplied, and the anisotropic valve 430 is set to open after closing for 20 minutes.
  • the temperature of the water flowing into the boiler 500 and the temperature of the water discharged from the boiler 500 were measured at 2 ° C. and 8 ° C., respectively, in a state where the boiler 500 was not ignited, and 1 minute 30 seconds. After the passage, the temperature rose to 45 ° C and 36.5 ° C, respectively.
  • hot water with an average temperature of 47.3 ° C was supplied from the heat storage tank 300, and after mixing with direct water for 40 seconds, which is converted from solar hot water to boiler hot water, the hot water temperature is 46.6 ° C (maximum). Temperature: 48 °C, minimum temperature: 46 °C), the temperature difference between the maximum temperature and the minimum temperature is 2 °C, and after 20 minutes, hot water with an average temperature of 46.8 °C was supplied.
  • the first connecting pipe 470 and the boiler 500 and the second connecting pipe 480 are provided in the section (for 40 seconds) when the solar hot water supply is switched to the hot water supply of the boiler. Since the hot water heated to a predetermined temperature is supplied after being auxiliaryly heated in the boiler 500, the temperature deviation can be minimized before and after switching to the boiler hot water supply, thereby stably supplying hot water of uniform temperature. Will be.
  • FIG 8 is a block diagram of a solar hot water system according to another embodiment of the present invention
  • Figure 9 is a control block diagram of a solar hot water system according to another embodiment of the present invention.
  • the heat medium circulation pipe (200; 200c), the heat medium circulation pump 210 for pumping the heat medium is circulated, and the water separator 230 located at the inlet side of the heat medium circulation pump 210 is provided do.
  • the upper one side of the water separator 230 is connected to the inlet-side heat medium circulation pipe 220c-1 and the heat medium passing through the heat storage tank 300 is introduced, and the other side of the bottom of the water separator 230, the outlet side heat medium circulation pipe ( 220c-2) is connected and the radiated heat medium is discharged.
  • the water level detecting sensor 231 and the air vent 232 are provided above the inlet separator 230 above the inlet-side heat medium circulation pipe 220c-1.
  • the water level detection sensor 231 detects the water level of the heat medium accommodated in the water separator 230 to detect whether the heat medium is low, and the air vent 232 is located above the water separator 230. When the pressure of the collected air exceeds the set pressure, it is opened by the pressure to discharge the air to the outside.
  • the heat medium supplement pipe 250 is branched to one side of the heat medium circulation pipe (200; 200a) to be connected to the heat medium supplement tank (240), and the heat medium stored in the heat medium supplement tank (240) is connected to the heat medium supplement pipe (250).
  • Heat medium supplementary pump 260 which is pumped to the heat medium circulation pipe (200; 200a) side and the check valve 251 is provided on the outlet side of the heat medium supplemental pump 260 to prevent the heat medium flowing back to the heat medium supplement tank 240 side ) Is provided.
  • the water level information of the heat medium detected by the water level sensor 231 provided in the water separator 230 is sent to the control unit 600, the control unit 600 determines whether or not the low water level of the heat medium based on the water level information of the heat medium It is to control the operation of the heat medium supplement pump (260). That is, when it is detected by the water level sensor 231 that the water level of the heat medium is less than the set level, the control unit 600 determines that the heat medium is insufficient, and transmits an operation signal to the heat medium supplement pump 260 to supply the heat medium supplement pump 260. ) To operate.
  • the controller The control unit 600 transmits an operation stop signal to the heat medium supplement pump 260 to control the operation of the heat medium supplement pump 260 to be stopped. At this time, even if the operation of the heat medium supplement pump 260 is stopped, the heat medium is prevented from flowing back to the heat medium supplement tank 240 by the check valve 251.
  • a water separator 230 having a water level detection and water separation function is provided at the inlet side of the heat medium circulation pump 210, and when the heat medium is insufficient, the heat medium stored in the heat medium supplement tank 240 is heated.
  • a check valve 251 on the outlet side of the heat medium supplementary pump 260 which is pumped to the pipe 200 side the insufficient heat medium can be automatically replenished, and the heat medium can be smoothly circulated, It is possible to prevent the overload of the thermal medium circulation pump 210 caused.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

La présente invention concerne un dispositif d'alimentation en eau chaude solaire, qui comprend : un collecteur solaire ; un tuyau de circulation de milieu de chauffage qui relie un côté entrée et un côté sortie du collecteur solaire et à travers lequel un milieu de chauffage circule ; un réservoir d'accumulation de chaleur dans lequel l'échange de chaleur entre le milieu de chauffage chauffé par la chaleur solaire et l'eau chaude logée dans l'intérieur du réservoir d'accumulation de chaleur se produit ; une partie alimentation en eau chaude qui fournit l'eau chaude dans le réservoir d'accumulation de chaleur vers un côté robinet ; et une chaudière qui, en complément, chauffe et fournit l'eau chaude dans le réservoir d'accumulation de chaleur si la température de l'eau chaude dans le réservoir d'accumulation de chaleur est inférieure à une température définie. La partie alimentation en eau chaude comprend : un tuyau de décharge d'eau chaude solaire, qui est relié à la section supérieure du réservoir d'accumulation de chaleur et décharge l'eau chaude depuis le réservoir d'accumulation de chaleur ; un tuyau d'alimentation en eau chaude qui est ramifié depuis le tuyau de décharge d'eau chaude solaire sur un côté, est relié à un robinet et présente une soupape à deux voies installée sur une ligne de tuyau de celui-ci, de manière à réguler l'écoulement de l'eau chaude ; un premier tuyau de raccordement qui est ramifié depuis le tuyau de décharge d'eau chaude solaire sur l'autre côté et est relié à une entrée de la chaudière ; et un second tuyau de raccordement qui relie une sortie de la chaudière et le tuyau d'alimentation en eau chaude au niveau d'un point espacé d'un côté sortie de la soupape à deux voies.
PCT/KR2015/002362 2015-03-11 2015-03-11 Système d'eau chaude solaire Ceased WO2016143924A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2015/002362 WO2016143924A1 (fr) 2015-03-11 2015-03-11 Système d'eau chaude solaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2015/002362 WO2016143924A1 (fr) 2015-03-11 2015-03-11 Système d'eau chaude solaire

Publications (1)

Publication Number Publication Date
WO2016143924A1 true WO2016143924A1 (fr) 2016-09-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107166746A (zh) * 2017-05-31 2017-09-15 山东科技大学 一种中高温槽式太阳能热水锅炉系统
CN114183789A (zh) * 2021-11-22 2022-03-15 国家电投集团电站运营技术（北京）有限公司 太阳能与生物质互补供热的热力系统

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Publication number Priority date Publication date Assignee Title
KR20030088709A (ko) * 2002-05-14 2003-11-20 주식회사 경동보일러 태양열보일러시스템
KR101054503B1 (ko) * 2009-04-03 2011-08-04 제인상사(주) 태양열을 이용한 온수시스템
JP2012077925A (ja) * 2010-09-30 2012-04-19 Noritz Corp 太陽熱温水システム
KR101168538B1 (ko) * 2011-02-23 2012-07-27 주식회사 경동나비엔 공동 축열탱크가 구비된 공동주택 태양열 온수시스템 및 그 제어방법
KR101322555B1 (ko) * 2011-12-27 2013-10-28 권요셉 태양열을 이용한 온수 시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030088709A (ko) * 2002-05-14 2003-11-20 주식회사 경동보일러 태양열보일러시스템
KR101054503B1 (ko) * 2009-04-03 2011-08-04 제인상사(주) 태양열을 이용한 온수시스템
JP2012077925A (ja) * 2010-09-30 2012-04-19 Noritz Corp 太陽熱温水システム
KR101168538B1 (ko) * 2011-02-23 2012-07-27 주식회사 경동나비엔 공동 축열탱크가 구비된 공동주택 태양열 온수시스템 및 그 제어방법
KR101322555B1 (ko) * 2011-12-27 2013-10-28 권요셉 태양열을 이용한 온수 시스템

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107166746A (zh) * 2017-05-31 2017-09-15 山东科技大学 一种中高温槽式太阳能热水锅炉系统
CN114183789A (zh) * 2021-11-22 2022-03-15 国家电投集团电站运营技术（北京）有限公司 太阳能与生物质互补供热的热力系统

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