CN111306814B - Multifunctional double-cold condenser heat pipe photovoltaic photo-thermal system and method - Google Patents
Multifunctional double-cold condenser heat pipe photovoltaic photo-thermal system and method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000005338 heat storage Methods 0.000 claims abstract description 20
- 239000003507 refrigerant Substances 0.000 claims description 150
- 239000007788 liquid Substances 0.000 claims description 60
- 238000010521 absorption reaction Methods 0.000 claims description 18
- 239000000498 cooling water Substances 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 230000031700 light absorption Effects 0.000 claims description 3
- 238000003855 Adhesive Lamination Methods 0.000 claims 1
- 239000004831 Hot glue Substances 0.000 claims 1
- 238000004146 energy storage Methods 0.000 abstract 1
- 238000010248 power generation Methods 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 description 5
- 239000012943 hotmelt Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- 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
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
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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
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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
- 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
- Y02B10/70—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
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- Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Photovoltaic Devices (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a multifunctional double-cold condenser heat pipe photovoltaic photo-thermal system and a use method thereof, wherein the multifunctional double-cold condenser heat pipe photovoltaic photo-thermal system comprises the following components: the solar energy photovoltaic and photo-thermal module, the fin micro-channel plate core, the double-cooling condenser, the water pump, the heat storage water tank, the solar energy storage battery and the solar energy reverse control integrated machine. The structure of the invention can realize the functions of power generation, hot water supply and cold supply. During daytime running, the solar photovoltaic photo-thermal module, the double-cooling condenser, the water pump and the heat storage water tank are operated in a combined mode, and a hot water supply function is realized through a forced water cooling heat exchange mode; when the cooling device runs at night, the fin microchannel plate cores and the double-cooling condenser are operated in a combined mode, and the cooling function is realized through a forced air cooling heat exchange mode. The invention has the advantages of multifunction, easy combination with building, simple operation mode, etc.
Description
Technical Field
The invention belongs to the field of combination of photovoltaic photo-thermal technology and buildings, and particularly relates to application of a heat pipe type photovoltaic photo-thermal system in a building.
Background
Solar energy is used as an important renewable energy source, and various utilization modes of the solar energy can effectively relieve electricity consumption and heat consumption of a building. Most solar products, such as solar photovoltaic panels, solar collectors and solar photovoltaic and photo-thermal systems, mainly output electric energy and heat energy, and systems capable of realizing refrigeration functions, such as solar heat pump/air conditioning systems, solar absorption refrigeration or solar absorption refrigeration systems, have the defects of high cost, large volume, high electric quantity consumption and the like.
The combination of radiation refrigeration and a solar energy system is an ingenious application structure, the functions of a solar energy product are enriched under the conditions of not increasing the volume and increasing a small amount of cost, and the combination of the traditional air cooling mode and the solar energy product achieves the functions of system refrigeration, power supply, hot water supply and the like, and the research is not yet available.
Chinese patent (CN 201310539314.4) and (CN 201310475617.4) both adopt a single water cooling mode to achieve the hot water supply function. The current photovoltaic photo-thermal system can only meet the functions of a part of users, and the function diversity of the current photovoltaic photo-thermal system needs to be improved.
Disclosure of Invention
Aiming at the problems of single heat exchange mode, limited functions, low heat exchange efficiency and the like of the conventional photovoltaic photo-thermal module, the invention provides a multifunctional double-cold condenser heat pipe photovoltaic photo-thermal system. According to the system, the double-cooling heat exchanger, the heat pipe type photovoltaic photo-thermal module and the fin micro-channel evaporator plate core are combined, the functions of supplying power and hot water in daytime and supplying cold at night are respectively realized in two heat exchange modes of a single heat exchanger, and the output function of the photovoltaic photo-thermal system is enriched.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
A multifunctional double-cold condenser heat pipe photovoltaic and photo-thermal system comprises a solar photovoltaic and photo-thermal module 1, a fin micro-channel evaporator plate core 21, a double-cold condenser 11, a water pump 17, a heat storage water tank 18, a solar storage battery 24 and a solar inverse control integrated machine 25;
The solar photovoltaic photo-thermal module 1 is used for absorbing and converting solar energy and providing electric energy and heat energy for a system, the solar photovoltaic photo-thermal module 1 comprises a glass plate 2 close to an illumination side, a heat absorption plate 5 close to a user side, a heat insulation air layer 3 between the glass plate 2 and the heat absorption plate 5, a solar cell array 4 is fixed on a light absorption surface of the heat absorption plate 5, and a micro-channel evaporator plate core 6 is fixed on a backlight surface of the heat absorption plate 5;
The upper end of the micro-channel evaporator plate core 6 is connected with a first refrigerant steam valve 9 to form a first branch, the upper end of the fin micro-channel evaporator plate core 21 is connected with a second refrigerant steam valve 22 to form a second branch, the first branch and the second branch are connected in parallel and then are connected with the lower end of a refrigerant steam pipe 10, the upper end of the refrigerant steam pipe 10 is connected with the inlet of a micro-channel refrigerant heat exchange pipe 12 in a double-cooling condenser 11, the outlet of the micro-channel refrigerant heat exchange pipe 12 is connected with the liquid return inlet of a refrigerant liquid return pipe 19, and the outlet of the refrigerant liquid return pipe 19 is respectively connected with the liquid return inlets of a first refrigerant liquid return valve 20 and a second refrigerant liquid return valve 23; the double-cooling condenser 11 is arranged at a position higher than the solar photovoltaic photo-thermal module 1 and the fin micro-channel evaporator plate core 21, the fin micro-channel evaporator plate core 21 is positioned indoors, and the lower end of the fin micro-channel evaporator plate core 21 is connected to the second refrigerant liquid return valve 23;
The double-cooling condenser 11 is internally provided with a micro-channel refrigerant heat exchange tube 12, a water-cooling heat exchange tube 13, an air-cooling heat exchange tube 14 and a fan 15, wherein the water-cooling heat exchange tube 13 is connected with a heat storage water tank 18 through a water pump 17 to form a cooling water channel, and the cooling water channel is arranged adjacent to the micro-channel refrigerant heat exchange tube 12; the head and tail of the air-cooled heat exchange tubes 14 are connected in series to form a cooling air channel, the cooling air channel is arranged adjacent to the micro-channel refrigerant heat exchange tubes 12, a fan 15 is arranged at the inlet of the cooling air channel, and an outlet of the cooling air channel is arranged outdoors and provided with an air-cooled tube outlet baffle 16;
the solar storage battery 24 is connected with the solar photovoltaic photo-thermal module 1 through an electric wire and is used for storing electric energy, and the solar inverse control integrated machine 25 is connected with the solar storage battery 24 and converts direct current in the storage battery 24 into alternating current for use by a user terminal 26.
Preferably, the solar photovoltaic photo-thermal module 1 and the double-cooled condenser 11 are installed outdoors, and the double-cooled condenser 11 is fixed at the edge of the roof.
Preferably, the solar photovoltaic photo-thermal module 1 and the fin micro-channel evaporator core 21 are fixed to the outside and inside of the wall, respectively.
Preferably, the micro-channel refrigerant heat exchange tubes 12 are arranged in a serpentine manner inside the double-cooling condenser 11, one side of the micro-channel refrigerant heat exchange tubes 12 is a water-cooling heat exchange tube 13, and the other side is an air-cooling heat exchange tube 14.
Preferably, the solar cell array 4 and the micro-channel evaporator core 6 are respectively fixed on the light absorbing surface and the backlight surface of the heat absorbing plate 5 by hot melt lamination.
Preferably, the hot water tank 18 is provided with a water outlet connected to the user terminal 26.
Preferably, the inlet of the cooling air duct is provided outdoors.
In order to achieve the above purpose, the invention also provides a method for using the multifunctional double-cold condenser heat pipe photovoltaic photo-thermal system, which comprises the following steps:
In a daytime hot water supply mode, the solar photovoltaic and photo-thermal module 1, the micro-channel refrigerant heat exchange tube 12, the water cooling heat exchange tube 13, the water pump 17 and the heat storage water tank 18 are operated in a combined mode; at this time, the first refrigerant steam valve 9 and the first refrigerant liquid return valve 20 are opened, the second refrigerant steam valve 22 and the second refrigerant liquid return valve 23 are closed, and simultaneously, the air cooling pipe outlet baffle 16 and the fan 15 are closed; the liquid refrigerant in the micro-channel evaporator plate core 6 absorbs solar heat and then changes phase into gaseous steam which enters the micro-channel refrigerant heat exchange tube 12 in the double-cooling condenser 11 through the first refrigerant steam valve 9 and the refrigerant steam tube 10, at the moment, the water pump 17 is started, water in the heat storage water tank 18 enters the water cooling heat exchange tube 13 in the double-cooling condenser 11 under the drive of the water pump 17, the gaseous refrigerant and cooling water exchange heat in a refrigerant two-phase flow-water forced convection heat exchange mode at the inner tube wall of the micro-channel refrigerant heat exchange tube 12, the cooled gaseous refrigerant changes phase into liquid, and flows into the micro-channel evaporator plate core 6 through the refrigerant liquid return tube 19 and the first refrigerant liquid return valve 20 under the action of gravity, so that the primary heat pipe heat transfer circulation process is completed, and the heated cooling water flows into the heat storage water tank 18 to complete the primary heat absorption process; after the water reaches the use requirement temperature, the hot water tank 18 provides hot water through the user end 26;
In the night cooling mode, the fin micro-channel evaporator plate core 21, the micro-channel refrigerant heat exchange tube 12 and the air cooling heat exchange tube 14 jointly operate; at this time, the first refrigerant steam valve 9 and the first refrigerant liquid return valve 20 are closed, the second refrigerant steam valve 22 and the second refrigerant liquid return valve 23 are opened, and simultaneously, the air cooling pipe outlet baffle 16 and the fan 15 are opened; the liquid refrigerant in the fin micro-channel evaporator plate core 21 absorbs indoor heat and then changes phase into gaseous steam which enters the micro-channel refrigerant heat exchange tube 12 in the double-cooling condenser 11 through the second refrigerant steam valve 22 and the refrigerant steam tube 10; the outdoor night cold air enters the air-cooled heat exchange tube 14 under the drive of the fan 15, the gaseous refrigerant and the cold air exchange heat in a refrigerant two-phase flow-air forced convection heat exchange mode at the outer tube wall of the microchannel refrigerant heat exchange tube 12, the cooled gaseous refrigerant changes phase into liquid state, and the cooled gaseous refrigerant flows into the fin microchannel evaporator plate core 21 through the refrigerant liquid return tube 19 and the second refrigerant liquid return valve 23 under the action of gravity to complete the heat transfer cycle process of the primary heat tube, the heated air is dispersed into the surrounding environment through the outlet of the air-cooled tube, and the night cold supply function is completed;
The solar storage battery 24 is connected with the solar photovoltaic photo-thermal module 1 through an electric wire and is used for storing electric energy, and the solar inverse control integrated machine 25 is connected with the solar storage battery 24 and converts direct current in the solar storage battery into alternating current for use by a user terminal 26.
Further, in the water cooling mode, the air-cooled heat exchange tube 14 and the external heat insulation layer can jointly serve as the heat insulation layer of the microchannel refrigerant heat exchange tube 12, so that heat loss in the working process is reduced.
The technical conception of the system of the invention is as follows:
The water-cooling air-cooling double-cooling heat exchanger is used as a condenser of the heat pipe type photovoltaic photo-thermal module and is combined with a plate core of the fin micro-channel evaporator. The system provides hot water and electric energy for the building, and realizes functions of cooling and the like. During daytime, the double-cold condenser heat pipe type photovoltaic photo-thermal system can be independently operated to supply power and hot water for a building. At night, the double-cooled condenser in combination with the fin microchannel evaporator core provides cooling to the building.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, the water-cooling air-cooling double-cooling heat exchanger is used as a condenser of the heat pipe type photovoltaic photo-thermal module, and two functions of heating water and cooling are realized by a single heat exchanger.
2. The water cooling and air cooling of the double-cooling condenser adopt forced convection heat exchange modes, so that the heat exchange coefficient of the heat exchanger is improved.
3. The solar photovoltaic photo-thermal module 1 and the fin micro-channel evaporator plate core 21 are simultaneously used as evaporators to be connected into a heat pipe system, so that a double-evaporator heat pipe type photovoltaic photo-thermal system structure is formed.
Drawings
Fig. 1 is a schematic structural diagram of a multifunctional double-cold condenser heat pipe photovoltaic photo-thermal system according to an embodiment of the present invention;
FIG. 2 is a plan view of a hot water supply mode of a daytime double-cold-condenser heat pipe photovoltaic photo-thermal system provided by the embodiment of the invention;
FIG. 3 is a plan view of a cold supply mode of a night double-cold condenser heat pipe photovoltaic photo-thermal system according to an embodiment of the invention;
In the figure, 1 is a solar photovoltaic photo-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 micro-channel evaporator plate core, 7 is a heat insulation layer, 8 is a frame, 9 is a first refrigerant steam valve, 10 is a refrigerant steam pipe, 11 is a double-cooling condenser, 12 is a micro-channel refrigerant heat exchange pipe, 13 is a water cooling heat exchange pipe, 14 is an air cooling heat exchange pipe, 15 is a fan, 16 is an air cooling pipe outlet baffle, 17 is a water pump, 18 is a heat storage water tank, 19 is a refrigerant liquid return pipe, 20 is a first refrigerant liquid return valve, 21 is a fin micro-channel evaporator plate core, 22 is a second refrigerant steam valve, 23 is a second refrigerant liquid return valve, 24 is a solar storage battery, 25 is a solar energy reverse control integrated machine, and 26 is a user end.
Detailed Description
As shown in fig. 1, a multifunctional double-cold condenser heat pipe photovoltaic and photo-thermal system comprises a solar photovoltaic and photo-thermal module 1, a fin micro-channel evaporator plate core 21, a double-cold condenser 11, a water pump 17, a heat storage water tank 18, a solar storage battery 24 and a solar inverse control integrated machine 25;
The solar photovoltaic photo-thermal module 1 and the double-cooling condenser 11 are arranged outdoors, and the double-cooling condenser 11 is fixed at the edge of a roof. The solar photovoltaic photo-thermal module 1 and the fin micro-channel evaporator plate core 21 are fixed on the outer side and the inner side of the wall respectively.
The solar photovoltaic photo-thermal module 1 is used for absorbing and converting solar energy and providing electric energy and heat energy for a system, the solar photovoltaic photo-thermal module 1 comprises a glass plate 2 close to an illumination side, a heat absorption plate 5 close to a user side, a heat insulation air layer 3 between the glass plate 2 and the heat absorption plate 5, a solar cell array 4 is fixed on a light absorption surface of the heat absorption plate 5 in a hot melt lamination mode, and a micro-channel evaporator plate core 6 is fixed on a backlight surface of the heat absorption plate 5 in a hot melt lamination mode;
The upper end of the micro-channel evaporator plate core 6 is connected with a first refrigerant steam valve 9 to form a first branch, the upper end of the fin micro-channel evaporator plate core 21 is connected with a second refrigerant steam valve 22 to form a second branch, the first branch and the second branch are connected in parallel and then are connected with the lower end of a refrigerant steam pipe 10, the upper end of the refrigerant steam pipe 10 is connected with the inlet of a micro-channel refrigerant heat exchange pipe 12 in a double-cooling condenser 11, the outlet of the micro-channel refrigerant heat exchange pipe 12 is connected with the liquid return inlet of a refrigerant liquid return pipe 19, and the outlet of the refrigerant liquid return pipe 19 is respectively connected with the liquid return inlets of a first refrigerant liquid return valve 20 and a second refrigerant liquid return valve 23; the double-cooling condenser 11 is arranged at a position higher than the solar photovoltaic photo-thermal module 1 and the fin micro-channel evaporator plate core 21, the fin micro-channel evaporator plate core 21 is positioned indoors, and the lower end of the fin micro-channel evaporator plate core 21 is connected to the second refrigerant liquid return valve 23;
The double-cooling condenser 11 is internally provided with a micro-channel refrigerant heat exchange tube 12, a water-cooling heat exchange tube 13, an air-cooling heat exchange tube 14 and a fan 15, wherein the water-cooling heat exchange tube 13 is connected with a heat storage water tank 18 through a water pump 17 to form a cooling water channel, and the cooling water channel is arranged adjacent to the micro-channel refrigerant heat exchange tube 12; the head and tail of the air-cooled heat exchange tubes 14 are connected in series to form a cooling air channel, the cooling air channel is arranged adjacent to the micro-channel refrigerant heat exchange tubes 12, a fan 15 is arranged at the inlet of the cooling air channel, and the inlet of the cooling air channel is arranged outdoors. The outlet of the cooling air channel is arranged outdoors and is provided with an air cooling pipe outlet baffle 16; the micro-channel refrigerant heat exchange tubes 12 are arranged in a serpentine manner in the double-cooling condenser 11, one side of the micro-channel refrigerant heat exchange tubes 12 is a water-cooling heat exchange tube 13, and the other side is an air-cooling heat exchange tube 14. The hot water tank 18 is provided with a water outlet connected to the user side 26.
The solar storage battery 24 is connected with the solar photovoltaic photo-thermal module 1 through an electric wire and is used for storing electric energy, and the solar inverse control integrated machine 25 is connected with the solar storage battery 24 and converts direct current in the storage battery 24 into alternating current for use by a user terminal 26.
The embodiment also provides a use method of the multifunctional double-cold condenser heat pipe photovoltaic photo-thermal system, which comprises the following steps:
As shown in fig. 2, in the daytime hot water supply mode, the solar photovoltaic and photo-thermal module 1, the micro-channel refrigerant heat exchange tube 12, the water cooling heat exchange tube 13, the water pump 17 and the heat storage water tank 18 are operated in a combined mode; at this time, the first refrigerant steam valve 9 and the first refrigerant liquid return valve 20 are opened, the second refrigerant steam valve 22 and the second refrigerant liquid return valve 23 are closed, and simultaneously, the air cooling pipe outlet baffle 16 and the fan 15 are closed; the liquid refrigerant in the micro-channel evaporator plate core 6 absorbs solar heat and then changes phase into gaseous steam which enters the micro-channel refrigerant heat exchange tube 12 in the double-cooling condenser 11 through the first refrigerant steam valve 9 and the refrigerant steam tube 10, at the moment, the water pump 17 is started, water in the heat storage water tank 18 enters the water cooling heat exchange tube 13 in the double-cooling condenser 11 under the drive of the water pump 17, the gaseous refrigerant and cooling water exchange heat in a refrigerant two-phase flow-water forced convection heat exchange mode at the inner tube wall of the micro-channel refrigerant heat exchange tube 12, the cooled gaseous refrigerant changes phase into liquid, and flows into the micro-channel evaporator plate core 6 through the refrigerant liquid return tube 19 and the first refrigerant liquid return valve 20 under the action of gravity, so that the primary heat pipe heat transfer circulation process is completed, and the heated cooling water flows into the heat storage water tank 18 to complete the primary heat absorption process; after the water reaches the use requirement temperature, the hot water tank 18 provides hot water through the user end 26;
As shown in fig. 3, in the night cooling mode, the fin microchannel evaporator plate core 21 operates in combination with the microchannel refrigerant heat exchange tube 12 and the air-cooled heat exchange tube 14; at this time, the first refrigerant steam valve 9 and the first refrigerant liquid return valve 20 are closed, the second refrigerant steam valve 22 and the second refrigerant liquid return valve 23 are opened, and simultaneously, the air cooling pipe outlet baffle 16 and the fan 15 are opened; the liquid refrigerant in the fin micro-channel evaporator plate core 21 absorbs indoor heat and then changes phase into gaseous steam which enters the micro-channel refrigerant heat exchange tube 12 in the double-cooling condenser 11 through the second refrigerant steam valve 22 and the refrigerant steam tube 10; the outdoor night cold air enters the air-cooled heat exchange tube 14 under the drive of the fan 15, the gaseous refrigerant and the cold air exchange heat in a refrigerant two-phase flow-air forced convection heat exchange mode at the outer tube wall of the microchannel refrigerant heat exchange tube 12, the cooled gaseous refrigerant changes phase into liquid state, and the cooled gaseous refrigerant flows into the fin microchannel evaporator plate core 21 through the refrigerant liquid return tube 19 and the second refrigerant liquid return valve 23 under the action of gravity to complete the heat transfer cycle process of the primary heat tube, the heated air is dispersed into the surrounding environment through the outlet of the air-cooled tube, and the indoor heat is led into the outdoor environment, so that the aim of cooling a building room is fulfilled.
The solar storage battery 24 is connected with the solar photovoltaic photo-thermal module 1 through an electric wire and is used for storing electric energy, and the solar inverse control integrated machine 25 is connected with the solar storage battery 24 and converts direct current in the solar storage battery into alternating current for use by a user terminal 26.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made thereto by those of ordinary skill in the art without departing from the spirit of the invention and the scope of the appended claims.
Claims (6)
1. A multi-functional double-cold condenser heat pipe photovoltaic photo-thermal system is characterized in that: the solar energy photovoltaic and photo-thermal module comprises a solar photovoltaic and photo-thermal module (1), a fin micro-channel evaporator plate core (21), a double-cooling condenser (11), a water pump (17), a heat storage water tank (18), a solar storage battery (24) and a solar energy reverse control integrated machine (25);
The solar photovoltaic photo-thermal module (1) is used for absorbing and converting solar energy and providing electric energy and heat energy for a system, the solar photovoltaic photo-thermal module (1) comprises a glass plate (2) close to an illumination side, a heat absorption plate (5) close to a user side, a heat insulation air layer (3) between the glass plate (2) and the heat absorption plate (5), a solar cell array (4) is fixed on a light absorption surface of the heat absorption plate (5), and a micro-channel evaporator plate core (6) is fixed on a backlight surface of the heat absorption plate (5);
The upper end of the micro-channel evaporator plate core (6) is connected with a first refrigerant steam valve (9) to form a first branch, the upper end of the fin micro-channel evaporator plate core (21) is connected with a second refrigerant steam valve (22) to form a second branch, the first branch and the second branch are connected in parallel and then are connected with the lower end of a refrigerant steam pipe (10), the upper end of the refrigerant steam pipe (10) is connected with the inlet of a micro-channel refrigerant heat exchange pipe (12) in a double-cooling condenser (11), the outlet of the micro-channel refrigerant heat exchange pipe (12) is connected with the liquid return inlet of a refrigerant liquid return pipe (19), and the outlet of the refrigerant liquid return pipe (19) is respectively connected to the liquid return inlets of a first refrigerant liquid return valve (20) and a second refrigerant liquid return valve (23); the double-cooling condenser (11) is arranged at a position higher than the solar photovoltaic photo-thermal module (1) and the fin micro-channel evaporator plate core (21), the fin micro-channel evaporator plate core (21) is positioned indoors, and the lower end of the fin micro-channel evaporator plate core (21) is connected to the second refrigerant liquid return valve (23);
A micro-channel refrigerant heat exchange tube (12), a water-cooling heat exchange tube (13), an air-cooling heat exchange tube (14) and a fan (15) are arranged in the double-cooling condenser (11), the water-cooling heat exchange tube (13) is connected with a heat storage water tank (18) through a water pump (17) to form a cooling water channel, and the cooling water channel is arranged adjacent to the micro-channel refrigerant heat exchange tube (12); the air cooling heat exchange pipes (14) are connected end to end in series to form a cooling air channel, the cooling air channel is arranged adjacent to the micro-channel refrigerant heat exchange pipes (12), a fan (15) is arranged at the inlet of the cooling air channel, and an outlet of the cooling air channel is arranged outdoors and provided with an air cooling pipe outlet baffle (16);
the solar storage battery (24) is connected with the solar photovoltaic photo-thermal module (1) through an electric wire and is used for storing electric energy, and the solar inverse control integrated machine (25) is connected with the solar storage battery (24) and converts direct current in the storage battery (24) into alternating current for a user terminal (26) to use;
the solar photovoltaic and photo-thermal module (1) and the double-cooling condenser (11) are arranged outdoors, and the double-cooling condenser (11) is fixed at the edge of the roof;
the solar photovoltaic photo-thermal module (1) and the fin micro-channel evaporator plate core (21) are respectively fixed on the outer side and the inner side of the wall.
2. The multi-functional double-cooled condenser heat pipe photovoltaic and photo-thermal system according to claim 1, wherein: the micro-channel refrigerant heat exchange tubes (12) are arranged in a serpentine manner in the double-cooling condenser (11), one side of each micro-channel refrigerant heat exchange tube (12) is a water-cooling heat exchange tube (13), and the other side is an air-cooling heat exchange tube (14).
3. The multi-functional double-cooled condenser heat pipe photovoltaic and photo-thermal system according to claim 1, wherein: the solar cell array (4) and the micro-channel evaporator plate core (6) are respectively fixed on the light absorbing surface and the backlight surface of the heat absorbing plate (5) in a hot melt adhesive lamination mode.
4. The multi-functional double-cooled condenser heat pipe photovoltaic and photo-thermal system according to claim 1, wherein: the heat storage water tank (18) is provided with a water outlet connected to the user end (26).
5. The multi-functional double-cooled condenser heat pipe photovoltaic and photo-thermal system according to claim 1, wherein: the inlet of the cooling air channel is arranged outside.
6. A method of using a multi-functional double-cooled condenser heat pipe photovoltaic and photo-thermal system as claimed in any one of claims 1 to 5, characterized by:
In a daytime hot water supply mode, the solar photovoltaic photo-thermal module (1), the micro-channel refrigerant heat exchange tube (12), the water cooling heat exchange tube (13), the water pump (17) and the heat storage water tank (18) are operated in a combined mode; at the moment, the first refrigerant steam valve (9) and the first refrigerant liquid return valve (20) are opened, the second refrigerant steam valve (22) and the second refrigerant liquid return valve (23) are closed, and meanwhile, the air cooling pipe outlet baffle (16) and the fan (15) are closed; the liquid refrigerant in the micro-channel evaporator plate core (6) absorbs solar energy and then changes phase into gaseous steam, the gaseous steam enters the micro-channel refrigerant heat exchange tube (12) in the double-cold condenser (11) through the first refrigerant steam valve (9) and the refrigerant steam tube (10), at the moment, the water pump (17) is started, water in the heat storage water tank (18) enters the water cooling heat exchange tube (13) in the double-cold condenser (11) under the drive of the water pump (17), the gaseous refrigerant and cooling water exchange heat in a refrigerant two-phase flow-water forced convection heat exchange mode through the inner tube wall of the micro-channel refrigerant heat exchange tube (12), the cooled gaseous refrigerant changes phase into liquid, the cooled gaseous refrigerant flows into the micro-channel evaporator plate core (6) through the refrigerant liquid return tube (19) and the first refrigerant liquid return valve (20) under the action of gravity, the primary heat pipe heat transfer circulation process is completed, and the heated cooling water flows into the heat storage water tank (18) to complete the primary heat absorption process; when the water reaches the use requirement temperature, the heat storage water tank (18) provides hot water through the user side (26);
In the night cooling mode, the fin micro-channel evaporator plate core (21) operates in combination with the micro-channel refrigerant heat exchange tube (12) and the air cooling heat exchange tube (14); at the moment, the first refrigerant steam valve (9) and the first refrigerant liquid return valve (20) are closed, the second refrigerant steam valve (22) and the second refrigerant liquid return valve (23) are opened, and meanwhile, the air cooling pipe outlet baffle (16) and the fan (15) are opened; liquid refrigerant in the fin micro-channel evaporator plate core (21) absorbs indoor heat and then changes phase into gaseous steam, and the gaseous steam enters a micro-channel refrigerant heat exchange tube (12) in the double-cooling condenser (11) through a second refrigerant steam valve (22) and a refrigerant steam tube (10); the outdoor night cold air enters an air-cooled heat exchange tube (14) under the drive of a fan (15), the gaseous refrigerant and cold air exchange heat in a refrigerant two-phase flow-air forced convection heat exchange mode at the outer tube wall of a micro-channel refrigerant heat exchange tube (12), the cooled gaseous refrigerant changes phase into liquid state, the cooled gaseous refrigerant flows into a fin micro-channel evaporator plate core (21) through a refrigerant liquid return tube (19) and a second refrigerant liquid return valve (23) under the action of gravity, the heat transfer cycle process of the heat pipe is completed, the heated air is dispersed into the surrounding environment through an outlet of the air-cooled tube, and the night cold supply function is completed;
the solar storage battery (24) is connected with the solar photovoltaic photo-thermal module (1) through an electric wire and is used for storing electric energy, and the solar inverse control integrated machine (25) is connected with the solar storage battery (24) and converts direct current in the solar storage battery into alternating current for a user end (26) to use.
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