CN111750418A - Heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system and method - Google Patents
Heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system and method Download PDFInfo
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- CN111750418A CN111750418A CN202010754039.8A CN202010754039A CN111750418A CN 111750418 A CN111750418 A CN 111750418A CN 202010754039 A CN202010754039 A CN 202010754039A CN 111750418 A CN111750418 A CN 111750418A
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- 239000012782 phase change material Substances 0.000 title claims abstract description 26
- 230000008878 coupling Effects 0.000 title claims abstract description 15
- 238000010168 coupling process Methods 0.000 title claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000008859 change Effects 0.000 claims abstract description 14
- 238000005057 refrigeration Methods 0.000 claims abstract description 10
- 239000003507 refrigerant Substances 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 22
- 238000005338 heat storage Methods 0.000 claims description 17
- 239000011232 storage material Substances 0.000 claims description 17
- 238000004321 preservation Methods 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 239000004280 Sodium formate Substances 0.000 claims description 3
- QHFQAJHNDKBRBO-UHFFFAOYSA-L calcium chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Ca+2] QHFQAJHNDKBRBO-UHFFFAOYSA-L 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 claims description 3
- 235000019254 sodium formate Nutrition 0.000 claims description 3
- 229940047908 strontium chloride hexahydrate Drugs 0.000 claims description 3
- AMGRXJSJSONEEG-UHFFFAOYSA-L strontium dichloride hexahydrate Chemical compound O.O.O.O.O.O.Cl[Sr]Cl AMGRXJSJSONEEG-UHFFFAOYSA-L 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000004831 Hot glue Substances 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Images
Classifications
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- 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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
-
- 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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
-
- 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
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
- F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/272—Solar heating or cooling
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- 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
- Y02B10/10—Photovoltaic [PV]
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- 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
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- 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
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- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- 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
- Y02E10/44—Heat exchange systems
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- 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
- Y02E10/50—Photovoltaic [PV] energy
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- 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
- Y02E10/60—Thermal-PV hybrids
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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Photovoltaic Devices (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system and a working method, wherein the heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system comprises a solar system, a heat pipe heat exchange system, a heat pump system and a power storage inversion system; in non-heating seasons, the heat pipe type photovoltaic photo-thermal module and the water-cooling heat exchanger run in a combined mode, and hot water can be provided for buildings; meanwhile, the heat pump system starts a refrigeration mode to provide cold energy indoors. In the heating season and in the daytime, the heat pipe type photovoltaic photo-thermal module and the indoor air-cooled heat exchanger run in a combined mode, the indoor air is heated by the solar energy, and the redundant heat is stored in the phase-change material on the surface of the wall; and at night, the phase change material on the surface of the wall body changes the phase and releases heat to supply heat indoors, and when the heat is insufficient, the heat pump system continues to supply heat indoors. The photovoltaic photo-thermal module, the heat pump and the phase change energy storage module are combined, and electric energy, hot water, cold supply and heat supply can be provided for a building.
Description
Technical Field
The invention belongs to the field of combination of a photovoltaic photo-thermal technology and a building, and particularly relates to application of a heat pipe type photovoltaic photo-thermal system and a heat pump heating technology in the building.
Background
Photovoltaic light and heat system has the electricity generation, prepares multiple functions such as domestic hot water and indoor heating to its structure can with building perfect adaptation, however the photovoltaic light and heat system of present stage adopts hydrologic cycle more, has the easy problem that freezes, heat transfer efficiency is low, can't refrigerate in summer and can't heat supply night in the season of heating.
The separated heat pipe technology is combined with the photovoltaic photo-thermal technology for use, so that the comprehensive utilization rate of solar energy can be improved, the problem of pipeline refrigeration can be solved, the heat pump technology is combined with the separated heat pipe technology, the cooling function in summer can be realized, and the problem of insufficient heat in the process of complementing photovoltaic photo-thermal heating in winter can be solved. By adding phase change materials in the system, the flexibility of the system can be increased, and the indoor comfort level can be improved under the condition that the photovoltaic photothermal module is fully utilized to generate heat. Therefore, the separated heat pipe technology, the heat pump technology and the phase-change material are coupled together, so that the system has more diversified functions and stronger practicability and comfort on the basis of improving the photoelectric and photothermal comprehensive efficiency.
Disclosure of Invention
The invention provides a heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system, aiming at the problems that the existing photovoltaic photo-thermal system is single in cooling mode, low in heat exchange efficiency, incapable of refrigerating and the like. The system combines the heat pipe type photovoltaic photo-thermal module with the heat pump and the phase-change material, and uses the water tank condenser and the indoor air-cooled heat exchanger as a part of the separated heat pipe, so that the photoelectric photo-thermal comprehensive efficiency of the photovoltaic photo-thermal module is improved on the basis of fully utilizing the obtained heat energy; meanwhile, the addition of the phase-change material can store the redundant heat in the daytime and use the heat at night in the heating season; the heat pump system can be more stable, insufficient heat can be supplemented in the heating season, and cooling requirements can be met in summer.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system comprises a solar system, a heat pipe heat exchange system, a heat pump system and an electricity storage inversion system;
the solar system comprises a heat pipe type photovoltaic photo-thermal module 1, the heat pipe type photovoltaic photo-thermal module 1 is placed on the outer surface of the sunny side of a wall body 24 and used as a solar receiving device of the system, the heat pipe type photovoltaic photo-thermal module 1 comprises a heat preservation layer 7 on the surface of the wall body 24, a micro-channel heat pipe evaporator 6 on the outer side of the heat preservation layer 7, a heat absorption plate 5 on the outer side of the micro-channel heat pipe evaporator 6, a solar cell array 4 fixed on the sunny side of the heat absorption plate 5, a glass plate 2 on the outer side of the solar cell array 4, and a heat insulation air layer 3 between the glass plate 2 and the solar cell array 4, and the upper end and the lower end of the heat pipe type;
the heat pipe heat exchange system comprises a water-cooled heat exchanger 12 arranged at a user end 27, an indoor air-cooled heat exchanger 15 positioned indoors and a phase change heat storage material layer 16 positioned on an indoor wall, wherein the water-cooled heat exchanger 12 comprises a heat preservation water tank 11 and a water-cooled condenser 10 inside the heat preservation water tank 11; the installation positions of the water-cooled condenser 10 and the indoor air-cooled heat exchanger 15 are higher than the solar photovoltaic thermal module 1; the micro-channel heat pipe evaporator 6 in the photovoltaic photo-thermal module 1 respectively forms a separated heat pipe system with a water-cooled condenser 10 and an indoor air-cooled heat exchanger 15, the upper end outlet of the micro-channel heat pipe evaporator 6 is connected with the inlet of the water-cooled condenser 10 through a water-cooled heat exchanger inlet valve 9, and the outlet of the water-cooled condenser 10 is connected with the lower end inlet of the micro-channel heat pipe evaporator 6 through a water-cooled heat exchanger outlet valve 13; an outlet at the upper end of the micro-channel heat pipe evaporator 6 is connected to an inlet of an indoor air-cooled heat exchanger 15 through an indoor air-cooled heat exchanger-heat pipe side inlet valve 14; an outlet of the air-cooled heat exchanger 15 is connected to a lower end inlet of the micro-channel heat pipe evaporator 6 through an indoor air-cooled heat exchanger-heat pipe side outlet valve 17, and a hot water outlet leading to a client is arranged on the heat preservation water tank 11;
the heat pump system comprises an outdoor air-cooled heat exchanger 20, a compressor 21 with a gas-liquid separator 28 and a four-way reversing valve 22, wherein the four-way reversing valve 22 is fixed above the compressor 21, a first interface 221 of the four-way reversing valve 22 is communicated with an outlet of the compressor 21, a second interface 222 is connected with the left end of the indoor air-cooled heat exchanger 15 through an indoor air-cooled heat exchanger-heat pump side inlet valve 23, a third interface 223 is connected with an inlet of the gas-liquid separator 28, and a fourth interface 224 is connected with an inlet of the outdoor air-cooled heat exchanger 20; the outlet of the outdoor air-cooled heat exchanger 20 is connected to the right end of the indoor air-cooled heat exchanger 15 through a capillary tube 19 and an outlet valve 18 on the indoor air-cooled heat exchanger-heat pump side; the right end of the indoor air-cooled heat exchanger 15 is connected to the inlet of the micro-channel heat pipe evaporator 6 through an indoor air-cooled heat exchanger-heat pipe side outlet valve 17;
the power storage inversion system comprises a solar cell array 4, a solar storage battery 25 and a solar inversion system 26, wherein the solar cell array 4 is connected with the solar storage battery 25, the solar storage battery 25 is connected with the solar inversion system 26, and the solar inversion system 26 is connected to a user side 27.
As a preferred mode, the phase-change heat storage material layer 16 is made of an inorganic phase-change material, and the formula comprises the following components in percentage by mass: 27 percent of calcium chloride hexahydrate, 23 percent of strontium chloride hexahydrate, 7.5 percent of maleic anhydride, 6.5 percent of sodium formate, 7.5 percent of sodium chloride, 3.5 percent of potassium persulfate and 25 percent of water, and the phase transition temperature is 40-45 ℃.
Preferably, the system comprises 2 operating modes: a cooling mode and a heating mode, wherein in the cooling mode, the second interface 222 and the third interface 223 of the four-way reversing valve 22 are communicated, and the first interface 221 and the fourth interface 224 are communicated; in the heating mode, the first port 221 and the second port 222 are connected, and the third port 223 and the fourth port 224 are connected.
Preferably, the solar cell array 4, the heat absorbing plate 5 and the microchannel heat pipe evaporator 6 are laminated together by a hot melt adhesive.
In order to achieve the above object, the present invention further provides a working method of the heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system, which comprises:
in non-heating seasons, an inlet valve 9 of a water-cooling heat exchanger and an outlet valve 13 of the water-cooling heat exchanger are opened, a solar photovoltaic photo-thermal module 1 is communicated with a water-cooling condenser 10, a microchannel heat pipe evaporator 6 and the water-cooling condenser 10 form a separated heat pipe system, a refrigerant in the microchannel heat pipe evaporator 6 absorbs heat in the heat pipe type photovoltaic photo-thermal module 1 and changes from a liquid state to a gas state, the gas refrigerant reaches the water-cooling condenser 10 along a pipeline and performs phase change heat exchange with low-temperature water in a heat-preservation water tank 11 in the water-cooling condenser 10, meanwhile, the refrigerant changes from the gas state to the liquid state, and the liquid refrigerant after heat exchange flows back to the heat pipe type photovoltaic photo-thermal module 1 through the outlet valve; when the building has a refrigeration demand, the heat pump system starts a refrigeration mode, the heat pump system and the indoor air-cooled heat exchanger 15 run jointly, the indoor air-cooled heat exchanger-heat pump side outlet valve 18 and the indoor air-cooled heat exchanger-heat pump side inlet valve 23 are opened, the flow direction is changed through the four-way reversing valve 22, the second interface 222 and the third interface 223 of the four-way reversing valve are communicated, the first interface 221 and the fourth interface 224 are communicated, high-temperature and high-pressure gaseous refrigerant from the outlet of the compressor 21 flows to the outdoor air-cooled heat exchanger 20, the refrigerant is subjected to heat release and condensation in the outdoor air-cooled heat exchanger 20 to become liquid, the condensed refrigerant enters the right end of the indoor air-cooled heat exchanger 15 through the capillary tube 19 and the indoor air-cooled heat exchanger-heat pump side outlet valve 18, the heat in the heat absorption chamber is evaporated in the indoor air-cooled heat exchanger 15, the left end of the heat absorption indoor air-cooled heat exchanger 15 enters the compressor 21 through the, thereby realizing the indoor cooling;
the heating season is a heating mode, in daytime, an indoor air-cooled heat exchanger-heat pipe side inlet valve 14 and an indoor air-cooled heat exchanger-heat pipe side outlet valve 17 are opened, a water-cooled heat exchanger inlet valve 9 and a water-cooled heat exchanger outlet valve 13 are closed, a heat pipe type photovoltaic photo-thermal module 1 is communicated with an indoor air-cooled heat exchanger 15, heat from the solar photovoltaic photo-thermal module 1 enters a micro-channel heat pipe evaporator 6, is guided into the indoor air-cooled heat exchanger 15 through the indoor air-cooled heat exchanger-heat pipe side inlet valve 14, indoor heating is achieved through the indoor air-cooled heat exchanger 15, and redundant heat is stored in a phase-change heat storage material layer 16; at night, the phase change heat storage material 16 on the surface of the indoor wall releases heat to heat a building; when the heat dissipation capacity of the phase change heat storage material layer 16 does not meet the indoor temperature requirement, the heat pump system is started, the indoor air-cooled heat exchanger-heat pump side inlet valve 23 and the indoor air-cooled heat exchanger-heat pump side outlet valve 18 are started, the flow direction is changed through the four-way reversing valve 24, the first interface 221 is communicated with the second interface 222, the third interface 223 is communicated with the fourth interface 224, the outdoor air-cooled heat exchanger 20 absorbs the heat in the outdoor air, the heat enters the compressor 21 through the four-way reversing valve 22, the high-temperature high-pressure gaseous refrigerant from the outlet of the compressor 21 enters the left end of the indoor air-cooled heat exchanger 15 through the indoor air-cooled heat exchanger-heat pump side inlet valve 23, and the heat is released through the indoor air-cooled heat exchanger 15 to supply heat; the refrigerant is released heat and condensed in the indoor air-cooled heat exchanger 15 to become liquid, the condensed refrigerant enters the outdoor air-cooled heat exchanger 20 through the indoor air-cooled heat exchanger-heat pump side outlet valve 18 and the capillary tube 19 to be evaporated, the heat in outdoor air is absorbed, and the heat-absorbed refrigerant enters the compressor to continue to circulate, so that the indoor heat supply is realized;
the solar storage battery 25 stores the electric energy from the solar photovoltaic/thermal module 1, and the solar inversion system 26 converts the direct current in the solar storage battery 25 into alternating current for supplying to the user 27.
The technical concept of the system of the invention is as follows:
the functions of heating, cooling and supplying domestic hot water for buildings are realized by coupling a heat pipe type solar photovoltaic photo-thermal system, a heat pump system and a phase-change material. But in non-heating season heat pipe formula photovoltaic light and heat system independent operation for building power supply and hot water, when having the refrigeration demand, heat pump system can be for the building cooling. In the heating season, the heat pipe type solar photovoltaic photo-thermal system is combined with the phase-change material and the heat pump system, so that the building can be heated continuously on the basis of fully utilizing the heat of the solar energy to heat.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention combines the heat pipe type solar photovoltaic photo-thermal system with the heat pump system, can provide electric energy, hot water, heating and cooling functions for buildings, and realizes the diversification of system functions.
2. The photovoltaic photo-thermal module adopts the heat pipe to transfer heat, and the problems that pipelines are easy to freeze in winter and the heat transfer efficiency is low are solved.
4. The phase-change heat storage material is added on the surface/inside of the wall body, and solar energy is fully utilized.
Drawings
Fig. 1 is a schematic structural diagram of a heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system according to an embodiment of the present invention;
fig. 2 is a plan view of a hot water making mode in which the non-heating season heat pipe type photovoltaic photo-thermal module and the water-cooled heat exchanger jointly operate according to the embodiment of the invention;
fig. 3 is a plan view of a cooling mode of a non-heating season heat pump system according to an embodiment of the present invention;
fig. 4 is a plan view of an indoor heating mode in which the heat pipe type photovoltaic photo-thermal module and the indoor air-cooled heat exchanger are operated in combination in the heating season according to the embodiment of the invention;
fig. 5 is a plan view of an indoor heating mode in which the night heat pump system for heating seasons and the indoor air-cooled heat exchanger provided by the embodiment of the present invention are operated in combination;
in the figure, 1 is a heat pipe type photovoltaic and thermal module, 2 is a glass plate, 3 is a heat insulation air layer, 4 is a solar cell array, 5 is a heat absorption plate, 6 is a microchannel heat pipe evaporator, 7 is a heat insulation layer, 8 is a photovoltaic and thermal module frame, 9 is a water-cooled heat exchanger inlet valve, 10 is a water-cooled condenser, 11 is a heat insulation water tank, 12 is a water-cooled heat exchanger, 13 is a water-cooled heat exchanger outlet valve, 14 is an indoor air-cooled heat exchanger-heat pipe side inlet valve, 15 is an indoor air-cooled heat exchanger, 16 is a phase change heat storage material layer, 17 is an indoor air-cooled heat exchanger-heat pipe side outlet valve, 18 is an indoor air-cooled heat exchanger-heat pump side outlet valve, 19 is a capillary tube, 20 is an outdoor air-cooled heat exchanger, 21 is a compressor, 22 is a four-way reversing valve, 221 is a first interface, 222 is a second interface, 23 is an indoor air-cooled heat exchanger-heat pump side inlet valve, 24 is a wall body, 25 is a solar storage battery, 26 is a solar inversion system, 27 is a user end, and 28 is a gas-liquid separator.
Detailed Description
As shown in fig. 1, a heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system comprises a solar system, a heat pipe heat exchange system, a heat pump system and an electricity storage inversion system;
the solar system comprises a heat pipe type photovoltaic photo-thermal module 1, the heat pipe type photovoltaic photo-thermal module 1 is placed on the outer surface of the sunny side of a wall body 24 and used as a solar receiving device of the system, the heat pipe type photovoltaic photo-thermal module 1 comprises a heat preservation layer 7 on the surface of the wall body 24, a micro-channel heat pipe evaporator 6 on the outer side of the heat preservation layer 7, a heat absorption plate 5 on the outer side of the micro-channel heat pipe evaporator 6, a solar cell array 4 fixed on the sunny side of the heat absorption plate 5, a glass plate 2 on the outer side of the solar cell array 4, and a heat insulation air layer 3 between the glass plate 2 and the solar cell array 4, and the upper end and the lower end of the heat pipe type;
the heat pipe heat exchange system comprises a water-cooled heat exchanger 12 arranged at a user end 27, an indoor air-cooled heat exchanger 15 positioned indoors and a phase change heat storage material layer 16 positioned on an indoor wall, wherein the water-cooled heat exchanger 12 comprises a heat preservation water tank 11 and a water-cooled condenser 10 inside the heat preservation water tank 11; the installation positions of the water-cooled condenser 10 and the indoor air-cooled heat exchanger 15 are higher than the solar photovoltaic thermal module 1; the micro-channel heat pipe evaporator 6 in the photovoltaic photo-thermal module 1 respectively forms a separated heat pipe system with a water-cooled condenser 10 and an indoor air-cooled heat exchanger 15, the upper end outlet of the micro-channel heat pipe evaporator 6 is connected with the inlet of the water-cooled condenser 10 through a water-cooled heat exchanger inlet valve 9, and the outlet of the water-cooled condenser 10 is connected with the lower end inlet of the micro-channel heat pipe evaporator 6 through a water-cooled heat exchanger outlet valve 13; an outlet at the upper end of the micro-channel heat pipe evaporator 6 is connected to an inlet of an indoor air-cooled heat exchanger 15 through an indoor air-cooled heat exchanger-heat pipe side inlet valve 14; an outlet of the air-cooled heat exchanger 15 is connected to a lower end inlet of the micro-channel heat pipe evaporator 6 through an indoor air-cooled heat exchanger-heat pipe side outlet valve 17, and a hot water outlet leading to a client is arranged on the heat preservation water tank 11;
the heat pump system comprises an outdoor air-cooled heat exchanger 20, a compressor 21 with a gas-liquid separator 28 and a four-way reversing valve 22, wherein the four-way reversing valve 22 is fixed above the compressor 21, a first interface 221 of the four-way reversing valve 22 is communicated with an outlet of the compressor 21, a second interface 222 is connected with the left end of the indoor air-cooled heat exchanger 15 through an indoor air-cooled heat exchanger-heat pump side inlet valve 23, a third interface 223 is connected with an inlet of the gas-liquid separator 28, and a fourth interface 224 is connected with an inlet of the outdoor air-cooled heat exchanger 20; the outlet of the outdoor air-cooled heat exchanger 20 is connected to the right end of the indoor air-cooled heat exchanger 15 through a capillary tube 19 and an outlet valve 18 on the indoor air-cooled heat exchanger-heat pump side; the right end of the indoor air-cooled heat exchanger 15 is connected to the inlet of the micro-channel heat pipe evaporator 6 through an indoor air-cooled heat exchanger-heat pipe side outlet valve 17;
the power storage inversion system comprises a solar cell array 4, a solar storage battery 25 and a solar inversion system 26, wherein the solar cell array 4 is connected with the solar storage battery 25, the solar storage battery 25 is connected with the solar inversion system 26, and the solar inversion system 26 is connected to a user side 27.
The phase-change heat storage material layer 16 is made of an inorganic phase-change material and comprises the following components in percentage by mass: 27 percent of calcium chloride hexahydrate, 23 percent of strontium chloride hexahydrate, 7.5 percent of maleic anhydride, 6.5 percent of sodium formate, 7.5 percent of sodium chloride, 3.5 percent of potassium persulfate and 25 percent of water, and the phase transition temperature is 40-45 ℃.
The system comprises 2 working modes: a cooling mode and a heating mode, wherein in the cooling mode, the second interface 222 and the third interface 223 of the four-way reversing valve 22 are communicated, and the first interface 221 and the fourth interface 224 are communicated; in the heating mode, the first port 221 and the second port 222 are connected, and the third port 223 and the fourth port 224 are connected.
The embodiment also provides a working method of the heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system, which comprises the following steps:
as shown in fig. 2, in non-heating seasons, an inlet valve 9 of a water-cooling heat exchanger and an outlet valve 13 of the water-cooling heat exchanger are opened, a solar photovoltaic photo-thermal module 1 is communicated with a water-cooling condenser 10, a microchannel heat pipe evaporator 6 and the water-cooling condenser 10 form a separated heat pipe system, a refrigerant in the microchannel heat pipe evaporator 6 absorbs heat in the heat pipe type photovoltaic photo-thermal module 1 and changes from a liquid state to a gas state, the gas refrigerant reaches the water-cooling condenser 10 along a pipeline and performs phase change heat exchange with low-temperature water in a heat-insulating water tank 11 in the water-cooling condenser 10, the refrigerant changes from the gas state to the liquid state, and the liquid refrigerant after heat exchange is subjected to the action of gravity, flows back to the photovoltaic heat pipe type photo; the heat preservation water tank 11 is provided with a hot water outlet leading to the client.
As shown in fig. 3, when the building needs cooling, the heat pump system is turned on to perform a cooling mode, the heat pump system operates in conjunction with the indoor air-cooled heat exchanger 15, the indoor air-cooled heat exchanger-heat pump side outlet valve 18 and the indoor air-cooled heat exchanger-heat pump side inlet valve 23 are opened, the flow direction is changed by the four-way reversing valve 22, the second interface 222 and the third interface 223 of the four-way reversing valve are communicated, the first interface 221 and the fourth interface 224 are communicated, the high-temperature and high-pressure gaseous refrigerant discharged from the outlet of the compressor 21 flows to the outdoor air-cooled heat exchanger 20, is cooled and condensed in the outdoor air-cooled heat exchanger 20 to become liquid, the condensed refrigerant enters the right end of the indoor air-cooled heat exchanger 15 through the capillary tube 19 and the indoor air-cooled heat exchanger-heat pump side outlet valve 18, evaporates and absorbs heat in the indoor air-cooled heat exchanger 15, and absorbs heat, and the left end of the indoor air-cooled heat exchanger 15 enters the compressor The circulation is continued, so that the indoor cooling is realized;
as shown in fig. 4, the heating season is a heating mode, in daytime, an indoor air-cooled heat exchanger-heat pipe side inlet valve 14 and an indoor air-cooled heat exchanger-heat pipe side outlet valve 17 are opened, a water-cooled heat exchanger inlet valve 9 and a water-cooled heat exchanger outlet valve 13 are closed, a heat pipe type photovoltaic photo-thermal module 1 is connected with an indoor air-cooled heat exchanger 15, heat from the solar photovoltaic photo-thermal module 1 enters a microchannel heat pipe evaporator 6, is guided into the indoor air-cooled heat exchanger 15 through the indoor air-cooled heat exchanger-heat pipe side inlet valve 14, indoor heating is performed by using the indoor air-cooled heat exchanger 15, and redundant heat is stored in a phase-change heat storage material layer 16; at night, the phase change heat storage material 16 on the surface of the indoor wall releases heat to heat a building;
as shown in fig. 5, when the heat dissipation capacity of the phase change heat storage material layer 16 does not meet the indoor temperature requirement, the heat pump system is turned on, the indoor air-cooled heat exchanger-heat pump side inlet valve 23 and the indoor air-cooled heat exchanger-heat pump side outlet valve 18 are turned on, the flow direction is changed by the four-way reversing valve 24, the first interface 221 is connected with the second interface 222, the third interface 223 is connected with the fourth interface 224, the outdoor air-cooled heat exchanger 20 absorbs the heat in the outdoor air, the heat enters the compressor 21 through the four-way reversing valve 22, the high-temperature and high-pressure gaseous refrigerant coming out of the outlet of the compressor 21 enters the left end of the indoor air-cooled heat exchanger 15 through the indoor air-cooled heat exchanger-heat pump side inlet valve 23, and the heat is released through the indoor air-; the refrigerant is released heat and condensed in the indoor air-cooled heat exchanger 15 to become liquid, the condensed refrigerant enters the outdoor air-cooled heat exchanger 20 through the indoor air-cooled heat exchanger-heat pump side outlet valve 18 and the capillary tube 19 to be evaporated, the heat in outdoor air is absorbed, and the heat-absorbed refrigerant enters the compressor to continue to circulate, so that the indoor heat supply is realized;
the solar storage battery 25 stores the electric energy from the solar photovoltaic/thermal module 1, and the solar inversion system 26 converts the direct current in the solar storage battery 25 into alternating current for supplying to the user 27.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a heat pipe formula photovoltaic light and heat module-heat pump-phase change material coupled system which characterized in that: the system comprises a solar system, a heat pipe heat exchange system, a heat pump system and a power storage inversion system;
the solar system comprises a heat pipe type photovoltaic photo-thermal module (1), the heat pipe type photovoltaic photo-thermal module (1) is placed on the outer surface of the sunny side of a wall body (24) and serves as a solar receiving device of the system, the heat pipe type photovoltaic photo-thermal module (1) comprises a heat insulation layer (7) on the surface of the wall body (24), a micro-channel heat pipe evaporator (6) on the outer side of the heat insulation layer (7), a heat absorption plate (5) on the outer side of the micro-channel heat pipe evaporator (6), a solar cell array (4) fixed on the sunny side of the heat absorption plate (5), a glass plate (2) on the outer side of the solar cell array (4), a heat insulation air layer (3) between the glass plate (2) and the solar cell array (4), and the upper end and the lower end of the heat pipe type photovoltaic photo-thermal module;
the heat pipe heat exchange system comprises a water-cooling heat exchanger (12) arranged at a user end (27), an indoor air-cooling heat exchanger (15) positioned indoors and a phase change heat storage material layer (16) positioned on an indoor wall body, wherein the water-cooling heat exchanger (12) comprises a heat preservation water tank (11) and a water-cooling condenser (10) arranged in the heat preservation water tank (11); the mounting positions of the water-cooled condenser (10) and the indoor air-cooled heat exchanger (15) are higher than that of the solar photovoltaic photothermal module (1); a microchannel heat pipe evaporator (6) in the photovoltaic photo-thermal module (1) respectively forms a separated heat pipe system with a water-cooled condenser (10) and an indoor air-cooled heat exchanger (15), an upper end outlet of the microchannel heat pipe evaporator (6) is connected with an inlet of the water-cooled condenser (10) through a water-cooled heat exchanger inlet valve (9), and an outlet of the water-cooled condenser (10) is connected with a lower end inlet of the microchannel heat pipe evaporator (6) through a water-cooled heat exchanger outlet valve (13); an outlet at the upper end of the micro-channel heat pipe evaporator (6) is connected to an inlet of an indoor air-cooled heat exchanger (15) through an indoor air-cooled heat exchanger-heat pipe side inlet valve (14); an outlet of the air-cooled heat exchanger (15) is connected to a lower end inlet of the micro-channel heat pipe evaporator (6) through an indoor air-cooled heat exchanger-heat pipe side outlet valve (17), and a hot water outlet leading to a client is arranged on the heat preservation water tank (11);
the heat pump system comprises an outdoor air-cooled heat exchanger (20), a compressor (21) with a gas-liquid separator (28), and a four-way reversing valve (22), wherein the four-way reversing valve (22) is fixed above the compressor (21), a first interface (221) of the four-way reversing valve (22) is communicated with an outlet of the compressor (21), a second interface (222) is connected with the left end of the indoor air-cooled heat exchanger (15) through an indoor air-cooled heat exchanger-heat pump side inlet valve (23), a third interface (223) is connected with an inlet of the gas-liquid separator (28), and a fourth interface (224) is connected with an inlet of the outdoor air-cooled heat exchanger (20); an outlet of the outdoor air-cooled heat exchanger (20) is connected to the right end of the indoor air-cooled heat exchanger (15) through a capillary tube (19) and an outlet valve (18) on the indoor air-cooled heat exchanger-heat pump side; the right end of the indoor air-cooled heat exchanger (15) is connected to the inlet of the micro-channel heat pipe evaporator (6) through an indoor air-cooled heat exchanger-heat pipe side outlet valve (17);
the power storage inversion system comprises a solar cell array (4), a solar storage battery (25) and a solar inversion system (26), wherein the solar cell array (4) is connected with the solar storage battery (25), the solar storage battery (25) is connected with the solar inversion system (26), and the solar inversion system (26) is connected to a user side (27).
2. The heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system of claim 1, wherein: the phase-change heat storage material layer (16) is made of an inorganic phase-change material and comprises the following components in percentage by mass: 27 percent of calcium chloride hexahydrate, 23 percent of strontium chloride hexahydrate, 7.5 percent of maleic anhydride, 6.5 percent of sodium formate, 7.5 percent of sodium chloride, 3.5 percent of potassium persulfate and 25 percent of water, and the phase transition temperature is 40-45 ℃.
3. The heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system of claim 1, wherein: the system comprises 2 working modes: the air conditioner comprises a refrigeration mode and a heating mode, wherein a second interface (222) and a third interface (223) of a four-way reversing valve (22) are communicated in the refrigeration mode, and a first interface (221) and a fourth interface (224) are communicated in the refrigeration mode; in the heating mode, the first interface (221) is connected with the second interface (222), and the third interface (223) is connected with the fourth interface (224).
4. The heat pipe type photovoltaic photo-thermal module-heat pump-phase change material coupling system of claim 1, wherein: the solar cell array (4), the heat absorption plate (5) and the micro-channel heat pipe evaporator (6) are laminated together through hot melt adhesive.
5. The method of operating a heat pipe photovoltaic thermal module-heat pump-phase change material coupling system of any of claims 1 to 4, wherein:
in non-heating seasons, an inlet valve (9) of a water-cooling heat exchanger and an outlet valve (13) of the water-cooling heat exchanger are opened, a solar photovoltaic photo-thermal module (1) is communicated with a water-cooling condenser (10), a microchannel heat pipe evaporator (6) and the water-cooling condenser (10) form a separated heat pipe system, a refrigerant in the microchannel heat pipe evaporator (6) absorbs heat in the heat pipe type photovoltaic photo-thermal module (1) and changes from liquid state to gas state, a gas refrigerant reaches the water-cooling condenser (10) along a pipeline and performs phase change heat exchange with low-temperature water in a heat-insulating water tank (11) in the water-cooling condenser (10), the refrigerant changes from gas state to liquid state, and the liquid refrigerant after heat exchange is subjected to the action of gravity and flows back to the heat pipe type photovoltaic photo-thermal module (1) through the outlet valve (; when a building has a refrigeration demand, the heat pump system starts a refrigeration mode, the heat pump system and the indoor air-cooled heat exchanger (15) run in a combined mode, the indoor air-cooled heat exchanger-heat pump side outlet valve (18) and the indoor air-cooled heat exchanger-heat pump side inlet valve (23) are opened, the flow direction is changed through the four-way reversing valve (22), the second interface (222) and the third interface (223) of the four-way reversing valve are communicated, the first interface (221) and the fourth interface (224) are communicated, high-temperature and high-pressure gaseous refrigerant from the outlet of the compressor (21) flows to the outdoor air-cooled heat exchanger (20), the refrigerant is subjected to heat release and condensation in the outdoor air-cooled heat exchanger (20) and becomes liquid, the condensed refrigerant enters the right end of the indoor air-cooled heat exchanger (15) through the capillary tube (19) and the indoor air-cooled heat exchanger-heat pump side outlet valve (18), and indoor heat is taken away by, the left end of the indoor air-cooled heat exchanger (15) after absorbing heat enters a compressor (21) through an indoor air-cooled heat exchanger-heat pump side inlet valve (23) to continue circulating, so that indoor cooling is realized;
the heating season is a heating mode, in daytime, an indoor air-cooled heat exchanger-heat pipe side inlet valve (14) and an indoor air-cooled heat exchanger-heat pipe side outlet valve (17) are opened, a water-cooled heat exchanger inlet valve (9) and a water-cooled heat exchanger outlet valve (13) are closed, a heat pipe type photovoltaic photo-thermal module (1) is communicated with an indoor air-cooled heat exchanger (15), heat from the solar photovoltaic photo-thermal module (1) enters a micro-channel heat pipe evaporator (6), is guided into the indoor air-cooled heat exchanger (15) through the indoor air-cooled heat exchanger-heat pipe side inlet valve (14), the indoor air-cooled heat exchanger (15) is used for supplying heat indoors, and redundant heat is stored in a phase-change heat storage material layer (16); at night, the phase change heat storage material (16) on the surface of the indoor wall releases heat to heat a building; when the heat dissipating capacity of the phase change heat storage material layer (16) does not meet the indoor temperature requirement, a heat pump system is started, an indoor air-cooled heat exchanger-heat pump side inlet valve (23) and an indoor air-cooled heat exchanger-heat pump side outlet valve (18) are started, a first interface (221) is communicated with a second interface (222), a third interface (223) is communicated with a fourth interface (224), an outdoor air-cooled heat exchanger (20) absorbs heat in outdoor air, the heat enters a compressor (21) through a four-way reversing valve (22), high-temperature and high-pressure gaseous refrigerant from an outlet of the compressor (21) enters the left end of an indoor air-cooled heat exchanger (15) through the indoor air-cooled heat exchanger-heat pump side inlet air-cooled valve (23), and releases the heat through the indoor air-cooled heat exchanger (15) to supply heat indoors; the refrigerant is subjected to heat release and condensation in the indoor air-cooled heat exchanger (15) to become liquid, the condensed refrigerant enters the outdoor air-cooled heat exchanger (20) through the indoor air-cooled heat exchanger-heat pump side outlet valve (18) and the capillary tube (19) to be evaporated, the heat in outdoor air is absorbed, and the heat-absorbed refrigerant enters the compressor to continue to circulate, so that indoor heating is realized;
the solar storage battery (25) stores electric energy from the solar photovoltaic/thermal module (1), and the solar inversion system (26) converts direct current in the solar storage battery (25) into alternating current to be supplied to a user end (27).
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| CN112910409A (en) * | 2021-03-30 | 2021-06-04 | 西南交通大学 | Multifunctional evaporative cooling heat pipe type photovoltaic photo-thermal system and working method |
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