CN213656920U - Heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system - Google Patents

Heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system Download PDF

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CN213656920U
CN213656920U CN202021553544.8U CN202021553544U CN213656920U CN 213656920 U CN213656920 U CN 213656920U CN 202021553544 U CN202021553544 U CN 202021553544U CN 213656920 U CN213656920 U CN 213656920U
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heat
floor
heat pipe
heat exchanger
water
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袁艳平
周锦志
钟巍
余南阳
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Southwest Jiaotong University
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Southwest Jiaotong University
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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]
    • 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
    • Y02E10/44—Heat exchange systems
    • 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
    • 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
    • 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

Abstract

The utility model provides a heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system, which comprises a heat pipe type photovoltaic photo-thermal module, a heat exchange system, a heat pump system and a power supply 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 reversely runs and cools the floor to provide cold for the building. In the heating season, during the daytime, heat pipe formula photovoltaic light and heat module and floor heat exchanger combined operation utilize solar energy heating floor layer to store unnecessary heat in the inside phase change material of floor heat exchanger, during night, store in the inside phase change material phase change of floor heat exchanger and release heat for indoor heating, the heat pump operation continues to provide the heat for the building when the heating is not enough, the utility model discloses combine together heat pipe formula photovoltaic light and heat module, heat pump, phase change energy storage module and building floor, can provide electric energy, hot water, cooling and heat supply for the building.

Description

Heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system
Technical Field
The utility model belongs to photovoltaic light and heat technique and building combine the field, concretely relates to heat pipe formula photovoltaic light and heat system and floor heating technique application 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.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems of single cooling mode, low heat exchange efficiency, incapability of refrigerating and the like of the existing photovoltaic photo-thermal system, the utility model provides a heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system and a working method. The system combines the heat pipe type photovoltaic photo-thermal module with the heat pump and the phase-change material, and takes the water-cooled condenser and the floor condenser 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 realize the purpose of the utility model, the utility model discloses technical scheme as follows:
a heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system comprises a heat pipe type photovoltaic photo-thermal module 1, a heat exchange system, a heat pump system and a power supply system;
the heat pipe type photovoltaic photo-thermal module 1 is placed on the surface of the sunny side of a building wall 26 and used as a solar heat receiving device of a system, the heat pipe type photovoltaic photo-thermal module 1 comprises a heat insulation layer 7 on the surface of the wall 26, 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, 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 photovoltaic photo-thermal module 1 are;
the heat exchange system comprises a water-cooling heat exchanger 12 arranged at a user end 29 and an indoor floor heat exchanger 15; 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 floor heat exchanger 15 comprises a floor layer 18, a floor condenser 16 inside the floor layer 18, and a phase-change heat storage material 17 filled between the inside of the floor layer 18 and the floor condenser 16; the water-cooled condenser 10 and the floor condenser 16 are arranged at positions higher than the solar photovoltaic thermal module 1; the micro-channel heat pipe evaporator 6 in the heat pipe type photovoltaic photo-thermal module 1 respectively forms a separated heat pipe system with a water-cooled condenser 10 and a floor condenser 16, 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, 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, and a water-cooled heat pipe heat transfer system is formed; a hot water outlet leading to the client is arranged on the heat preservation water tank 11; the upper outlet of the microchannel heat pipe evaporator 6 is connected to a floor condenser 16 via a floor heat exchanger-heat pipe side inlet valve 14; the outlet of the floor condenser 16 is connected to the lower inlet of the micro-channel heat pipe evaporator 6 through a floor heat exchanger-heat pipe side outlet valve 19 to form a floor cooling heat pipe heat transfer system;
the heat pump system comprises an air-cooled heat exchanger 22, a compressor 23 with a gas-liquid separator 30 and a four-way reversing valve 24, wherein the four-way reversing valve 24 is fixed above the compressor 23, a first interface 241 of the four-way reversing valve 24 is communicated with an outlet of the compressor 23, a second interface 242 is communicated with the left end of a ground plate condenser 16 through a floor heat exchanger-heat pump side inlet valve 25, a third interface 243 is communicated with an inlet of the air-liquid separator 30, and a fourth interface 244 is communicated with an inlet of the air-cooled heat exchanger 22; the outlet of the air-cooled heat exchanger 22 is connected to the right end of the floor condenser 16 through a capillary tube 21 and a floor heat exchanger-heat pump side outlet valve 20 to form a heat pump heat transfer system;
the power supply system comprises a solar cell array 4 connected with a solar storage battery 27, the solar storage battery 27 is connected with a solar inversion system 28, and the solar inversion system 28 is connected to a user terminal 29.
As a preferred mode, the phase-change heat storage material 17 is an inorganic phase-change material, and the formula is as follows by mass percent: 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 port 242 and the third port 243 of the four-way reversing valve 24 are communicated, and the first port 241 and the fourth port 244 are communicated; in the heating mode, the first port 241 and the second port 242 are connected, and the third port 243 and the fourth port 244 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.
Preferably, the heat pump operates to simultaneously supply cooling or heating to the two-story building through the floor heat exchanger 15.
The utility model discloses a working method of heat pipe formula photovoltaic light and heat module-heat pump-phase transition floor coupled system does:
in non-heating seasons, the floor heat exchanger-heat pipe side inlet valve 14, the floor heat exchanger-heat pipe side outlet valve 19 are closed, other valves are opened, the heat pipe type photovoltaic photo-thermal module 1 is communicated with the water-cooled condenser 10, the working medium 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, the gas working medium reaches the water-cooled condenser 10 along a pipeline and carries out phase change heat exchange with low-temperature water in the heat preservation water tank 11 in the water-cooled condenser 10, meanwhile, the working medium changes from gas state to liquid state, the liquid working medium 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 water; when a building needs refrigeration, the heat pump system enters a refrigeration mode, the heat pump system takes the floor heat exchanger 15 as an evaporator to absorb heat of the floor layer 18, a working medium changes from a liquid state to a gas state and then enters the compressor 23 through the four-way reversing valve 24, the flow direction is changed through the four-way reversing valve 24, the second interface 242 and the third interface 243 of the four-way reversing valve are communicated, the first interface 241 and the fourth interface 244 are communicated, the high-temperature and high-pressure gas working medium is discharged from the outlet of the compressor 23 and flows to the outdoor air-cooled heat exchanger 22, the high-temperature and high-pressure gas working medium is released and condensed in the outdoor air-cooled heat exchanger 22 to be changed into a liquid state, the condensed working medium enters the right end of the floor condenser 16 of the floor heat exchanger 15 through the capillary tube 21 and the floor heat exchanger-heat pump side outlet valve 20, the heat absorption is evaporated in the floor condenser 16 to cool the floor layer 18, thereby realizing the indoor cooling;
in the heating season, in the daytime, the floor heat exchanger-heat pipe side inlet valve 14 and the floor heat exchanger-heat pipe side outlet valve 19 are opened, the water-cooling heat exchanger inlet valve 9 and the water-cooling heat exchanger outlet valve 13 are closed, the heat pipe type photovoltaic photo-thermal module 1 is communicated with the floor heat exchanger 15, heat from the heat pipe type photovoltaic photo-thermal module 1 enters the micro-channel heat pipe evaporator 6, is guided into the floor heat exchanger 15 through the floor heat exchanger-heat pipe side inlet valve 14, the floor layer 18 is heated by solar energy for indoor heating, and redundant heat is stored in the phase change heat storage material 17 in the floor heat exchanger; at night, the phase change heat storage material 17 stored in the floor heat exchanger 15 releases heat to heat a building; when the heat dissipation capacity of the phase change heat storage material 17 in the floor heat exchanger 15 does not meet the indoor temperature requirement, the heat pump system is started, the floor heat exchanger-heat pump side inlet valve 25, the floor heat exchanger-heat pump side outlet valve 20 are started, the floor heat exchanger-heat pipe side inlet valve 14 and the floor heat exchanger-heat pipe side outlet valve 19 are closed, the first interface 241 and the second interface 242 are communicated through the flow direction change of the four-way reversing valve 24, the third interface 243 and the fourth interface 244 are communicated, the air-cooled heat exchanger 22 absorbs heat in outdoor air, the heat enters the compressor 23 through the four-way reversing valve 24, high-temperature and high-pressure gaseous working media from the outlet of the compressor 23 enter the left end of the floor condenser 16 through the floor heat exchanger-heat pump side inlet valve 25, and the heat is released through the floor heat exchanger 15 to; the working medium is subjected to heat release and condensation in the floor heat exchanger 15 to become liquid, the condensed working medium enters the outdoor air-cooled heat exchanger 22 through the floor heat exchanger-heat pump side outlet valve 20 and the capillary tube 21 to be evaporated, the heat in outdoor air is absorbed, and the heat-absorbed working medium enters the compressor to continue circulation, so that indoor heating is realized;
the solar storage battery 27 stores the electric energy from the solar photovoltaic/thermal module 1, and the solar inversion system 28 converts the direct current in the solar storage battery 27 into alternating current for supplying to the user terminal 29.
The utility model discloses the technical conception of system 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 alone operation for building power supply and hot water, when the building has 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 beneficial effects of the utility model are as follows:
1. the utility model discloses combine together heat pipe formula solar photovoltaic photo-thermal system and heat pump system, phase change material, can provide electric energy, hot water, heating and cooling function for the building, realized that system's function is diversified.
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.
3. The phase-change heat storage material is added into the floor heat exchanger, so that the heat obtained by the photovoltaic photothermal module is effectively and reasonably regulated and controlled, and the solar utilization rate is improved.
4. The introduction of the floor heat exchanger can realize the cooling and heating of the upper and lower buildings at the same time.
Drawings
Fig. 1 is a schematic structural diagram of a heat pipe type photovoltaic and photothermal module-heat pump-phase change floor coupling system according to an embodiment of the present invention;
fig. 2 is a plan view of a hot water heating mode in which the non-heating season heat pipe type photovoltaic photo-thermal system and the water-cooling heat exchanger jointly operate;
fig. 3 is a plan view of a cooling mode of a non-heating season heat pump system provided by 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 floor heat exchanger are operated in combination in a heating season provided by the embodiment of the present invention;
fig. 5 is a plan view of a heating mode of the heat pump system at night in the heating season provided by the embodiment of the invention;
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 a floor heat exchanger-heat pipe side inlet valve, 15 is a floor heat exchanger, 16 is a floor condenser, 17 is a phase change heat storage material, 18 is a floor layer, 19 is a floor heat exchanger-heat pipe side outlet valve, 20 is a floor heat exchanger-heat pump side outlet valve, 21 is a capillary tube, 22 is an air-cooled heat exchanger, 23 is a compressor, 24 is a four-way reversing valve, 241 is a first interface, 242 is a second interface, 243 is a third, 25 is a floor heat exchanger-heat pump side inlet valve, 26 is a wall, 27 is a solar storage battery, 28 is a solar inversion system, 29 is a user side, and 30 is a gas-liquid separator.
Detailed Description
As shown in fig. 1, a heat pipe type photovoltaic and thermal module-heat pump-phase change floor coupling system comprises a heat pipe type photovoltaic and thermal module 1, a heat exchange system, a heat pump system and a power supply system;
the heat pipe type photovoltaic photo-thermal module 1 is placed on the surface of the sunny side of a building wall 26 and used as a solar heat receiving device of a system, the heat pipe type photovoltaic photo-thermal module 1 comprises a heat insulation layer 7 on the surface of the wall 26, 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, 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 photovoltaic photo-thermal module 1 are;
the heat exchange system comprises a water-cooling heat exchanger 12 arranged at a user end 29 and an indoor floor heat exchanger 15; 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 floor heat exchanger 15 comprises a floor layer 18, a floor condenser 16 inside the floor layer 18, and a phase-change heat storage material 17 filled between the inside of the floor layer 18 and the floor condenser 16; the water-cooled condenser 10 and the floor condenser 16 are arranged at positions higher than the solar photovoltaic thermal module 1; the micro-channel heat pipe evaporator 6 in the heat pipe type photovoltaic photo-thermal module 1 respectively forms a separated heat pipe system with a water-cooled condenser 10 and a floor condenser 16, 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, 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, and a water-cooled heat pipe heat transfer system is formed; a hot water outlet leading to the client is arranged on the heat preservation water tank 11; the upper outlet of the microchannel heat pipe evaporator 6 is connected to a floor condenser 16 via a floor heat exchanger-heat pipe side inlet valve 14; the outlet of the floor condenser 16 is connected to the lower inlet of the micro-channel heat pipe evaporator 6 through a floor heat exchanger-heat pipe side outlet valve 19 to form a floor cooling heat pipe heat transfer system;
the heat pump system comprises an air-cooled heat exchanger 22, a compressor 23 with a gas-liquid separator 30 and a four-way reversing valve 24, wherein the four-way reversing valve 24 is fixed above the compressor 23, a first interface 241 of the four-way reversing valve 24 is communicated with an outlet of the compressor 23, a second interface 242 is communicated with the left end of a ground plate condenser 16 through a floor heat exchanger-heat pump side inlet valve 25, a third interface 243 is communicated with an inlet of the air-liquid separator 30, and a fourth interface 244 is communicated with an inlet of the air-cooled heat exchanger 22; the outlet of the air-cooled heat exchanger 22 is connected to the right end of the floor condenser 16 through a capillary tube 21 and a floor heat exchanger-heat pump side outlet valve 20 to form a heat pump heat transfer system;
the power supply system comprises a solar cell array 4 connected with a solar storage battery 27, the solar storage battery 27 is connected with a solar inversion system 28, and the solar inversion system 28 is connected to a user terminal 29.
The phase-change heat storage material 17 adopts 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 embodiment also provides a working method of the heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system, which comprises the following steps:
as shown in fig. 2, in non-heating seasons, the floor heat exchanger-heat pipe side inlet valve 14, the floor heat exchanger-heat pipe side outlet valve 19 are closed, other valves are opened, the heat pipe type photovoltaic photo-thermal module 1 is connected with the water-cooled condenser 10, the working medium 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, the gas working medium reaches the water-cooled condenser 10 along the pipeline and performs phase change heat exchange with low-temperature water in the heat-preservation water tank 11 in the water-cooled condenser 10, meanwhile, the working medium changes from gas state to liquid state, and the liquid working medium after heat exchange is subjected to the action of gravity and flows back to the heat pipe type photovoltaic photo-thermal module 1; as shown in fig. 3, when the building needs refrigeration, the heat pump system enters a refrigeration mode, the heat pump system absorbs heat of the floor layer 18 by using the floor heat exchanger 15 as an evaporator, the working medium changes phase from liquid to gas and then enters the compressor 23 through the four-way reversing valve 24, the flow direction is changed through the four-way reversing valve 24, the second interface 242 and the third interface 243 of the four-way reversing valve are communicated, the first interface 241 and the fourth interface 244 are communicated, the high-temperature and high-pressure gaseous working medium is discharged from the outlet of the compressor 23 and flows to the outdoor air-cooled heat exchanger 22, the high-temperature and high-pressure gaseous working medium is discharged from the outdoor air-cooled heat exchanger 22 and is condensed into liquid in the outdoor air-cooled heat exchanger 22, the condensed working medium enters the right end of the floor condenser 16 of the floor heat exchanger 15 through the capillary tube 21 and the floor heat exchanger-heat pump side outlet valve 20, the floor layer 18 is cooled by evaporation in the floor condenser 16, thereby realizing the indoor cooling;
as shown in fig. 4, in the heating season, during daytime, the floor heat exchanger-heat pipe side inlet valve 14 and the floor heat exchanger-heat pipe side outlet valve 19 are opened, the water-cooling heat exchanger inlet valve 9 and the water-cooling heat exchanger outlet valve 13 are closed, the heat pipe type photovoltaic photo-thermal module 1 is connected with the floor heat exchanger 15, heat from the heat pipe type photovoltaic photo-thermal module 1 enters the microchannel heat pipe evaporator 6, is introduced into the floor heat exchanger 15 through the floor heat exchanger-heat pipe side inlet valve 14, the floor layer 18 is heated by solar energy for indoor heating, and redundant heat is stored in the phase change heat storage material 17 inside the floor heat exchanger; at night, the phase change heat storage material 17 stored in the floor heat exchanger 15 releases heat to heat a building; as shown in fig. 5, when the heat dissipation capacity of the phase change heat storage material 17 in the floor heat exchanger 15 does not reach the indoor temperature requirement, the heat pump system is opened, the floor heat exchanger-heat pump side inlet valve 25, the floor heat exchanger-heat pump side outlet valve 20 are opened, the floor heat exchanger-heat pipe side inlet valve 14 and the floor heat exchanger-heat pipe side outlet valve 19 are closed, the flow direction is changed through the four-way reversing valve 24, the first interface 241 is communicated with the second interface 242, the third interface 243 is communicated with the fourth interface 244, the air-cooled heat exchanger 22 absorbs heat in outdoor air, the heat enters the compressor 23 through the four-way reversing valve 24, high-temperature and high-pressure gaseous working media from the outlet of the compressor 23 enter the left end of the floor condenser 16 through the floor heat exchanger-heat pump side inlet valve 25, and the heat is released through the floor heat exchanger 15 to supply heat to the indoor space; the working medium is subjected to heat release and condensation in the floor heat exchanger 15 to become liquid, the condensed working medium enters the outdoor air-cooled heat exchanger 22 through the floor heat exchanger-heat pump side outlet valve 20 and the capillary tube 21 to be evaporated, the heat in outdoor air is absorbed, and the heat-absorbed working medium enters the compressor to continue circulation, so that indoor heating is realized;
the solar storage battery 27 stores the electric energy from the solar photovoltaic/thermal module 1, and the solar inversion system 28 converts the direct current in the solar storage battery 27 into alternating current for supplying to the user terminal 29.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention, and these modifications are all within the protection scope of the present invention.

Claims (3)

1. The utility model provides a heat pipe formula photovoltaic light and heat module-heat pump-phase transition floor coupled system which characterized in that: the solar heat collector comprises a heat pipe type photovoltaic photo-thermal module (1), a heat exchange system, a heat pump system and a power supply system;
the heat pipe type photovoltaic photo-thermal module (1) is placed on the surface of the sunny side of a building wall body (26) and used as a solar heat receiving device of a system, the heat pipe type photovoltaic photo-thermal module (1) comprises a heat insulation layer (7) on the surface of the wall body (26), 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 (1) are sealed;
the heat exchange system comprises a water-cooling heat exchanger (12) arranged at a user end (29) and a floor heat exchanger (15) positioned indoors; 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 floor heat exchanger (15) comprises a floor layer (18), a floor condenser (16) inside the floor layer (18), and a phase-change heat storage material (17) filled between the inside of the floor layer (18) and the floor condenser (16); the installation positions of the water-cooled condenser (10) and the floor condenser (16) are higher than that of the heat pipe type photovoltaic photo-thermal module (1); a microchannel heat pipe evaporator (6) in a heat pipe type photovoltaic photo-thermal module (1) respectively forms a separated heat pipe system with a water-cooled condenser (10) and a floor condenser (16), 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), 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), and a water-cooled heat pipe heat transfer system is formed; a hot water outlet leading to the client is arranged on the heat preservation water tank (11); the upper end outlet of the micro-channel heat pipe evaporator (6) is connected to a floor condenser (16) through a floor heat exchanger-heat pipe side inlet valve (14); the outlet of the floor condenser (16) is connected to the lower inlet of the micro-channel heat pipe evaporator (6) through a floor heat exchanger-heat pipe side outlet valve (19) to form a floor cooling heat pipe heat transfer system;
the heat pump system comprises an air-cooled heat exchanger (22), a compressor (23) with a gas-liquid separator (30), and a four-way reversing valve (24), wherein the four-way reversing valve (24) is fixed above the compressor (23), a first interface (241) of the four-way reversing valve (24) is communicated with an outlet of the compressor (23), a second interface (242) is communicated with an inlet of a ground plate condenser (16) through a floor heat exchanger-heat pump side inlet valve (25), a third interface (243) is connected with an inlet of the air-liquid separator (30), and a fourth interface (244) is communicated with an inlet of the air-cooled heat exchanger (22); the outlet of the air-cooled heat exchanger (22) is connected to the right end of the floor condenser (16) through a capillary tube (21) and a floor heat exchanger-heat pump side outlet valve (20) to form a heat pump heat transfer system;
the power supply system comprises a solar cell array (4) connected with a solar storage battery (27), the solar storage battery (27) is connected with a solar inversion system (28), and the solar inversion system (28) is connected to a user side (29).
2. The heat pipe photovoltaic photo-thermal module-heat pump-phase change floor coupling system of claim 1, wherein: the system comprises 2 working modes: the four-way reversing valve comprises a refrigeration mode and a heating mode, wherein a second interface (242) and a third interface (243) of the four-way reversing valve (24) are communicated in the refrigeration mode, and a first interface (241) and a fourth interface (244) are communicated; in the heating mode, the first interface (241) is connected with the second interface (242), and the third interface (243) is connected with the fourth interface (244).
3. The heat pipe photovoltaic photo-thermal module-heat pump-phase change floor 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.
CN202021553544.8U 2020-07-30 2020-07-30 Heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system Active CN213656920U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750417A (en) * 2020-07-30 2020-10-09 西南交通大学 Heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750417A (en) * 2020-07-30 2020-10-09 西南交通大学 Heat pipe type photovoltaic photo-thermal module-heat pump-phase change floor coupling system and method

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