CN112532178B - Phase-change liquid-cooling composite heat dissipation device for solar panel - Google Patents
Phase-change liquid-cooling composite heat dissipation device for solar panel Download PDFInfo
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- CN112532178B CN112532178B CN202011505906.0A CN202011505906A CN112532178B CN 112532178 B CN112532178 B CN 112532178B CN 202011505906 A CN202011505906 A CN 202011505906A CN 112532178 B CN112532178 B CN 112532178B
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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
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/50—Preventing overheating or overpressure
- F24S40/55—Arrangements for cooling, e.g. by using external heat dissipating means or internal cooling circuits
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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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to the technical field of solar panel heat dissipation, in particular to a phase-change liquid-cooling composite heat dissipation device for a solar panel. The invention has the advantages that: the phase change heat exchanger is separated from the photovoltaic plate, the requirement on the quality of the phase change material is reduced, the water in the water mould can absorb partial wavelength which cannot be utilized by the photovoltaic plate, the utilization of light is increased, the circulation rate of steam is accelerated through the arrangement of the hot air chimney and the turbocharger, the cooling rate can be automatically adjusted, the moisture absorber absorbs redundant steam, the vacuum degree is maintained, the quick circulation of the steam is ensured, the U-shaped pipe is arranged, the steam in the phase change heat exchanger is prevented from being discharged from the U-shaped pipe, the alcohol bin is arranged in the phase change heat plate, and the heat exchange of the phase change material is accelerated.
Description
Technical Field
The invention relates to the technical field of solar panel heat dissipation, in particular to a phase-change liquid-cooling composite heat dissipation device of a solar panel.
Background
The generated energy of the solar panel is greatly influenced by temperature, so that the solar panel needs to be radiated in the power generation process.
The solar panel mainly utilizes the phase change material to radiate heat by being attached to the solar panel, the traditional phase change material has the advantage of great latent heat, and can have great temperature control capability, but the existing phase change material radiates heat with the following defects:
The existing phase change material has the problems that the heat dissipation is mostly in direct contact with a heat source, similar to fins, the volume of the phase change material is limited, and the phase change material has higher heat conductivity coefficient and heat storage capacity to meet the working condition, so that the manufacturing difficulty is high and the cost is high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a phase-change liquid-cooling composite heat dissipation device of a solar panel.
The aim of the invention is achieved by the following technical scheme: the phase-change liquid-cooling composite heat dissipation device of the solar panel comprises a photovoltaic panel, wherein an evaporator is fixedly connected to the back surface of the photovoltaic panel, a first steam pipe is fixedly connected to the top of the evaporator, a guide pipe is fixedly connected to the bottom of the evaporator, a water mold is fixedly connected to one end, away from the evaporator, of the guide pipe, and a second steam pipe is fixedly connected to the top of the water mold;
One side of the photovoltaic panel is fixedly connected with a hot air chimney, the inner wall of the hot air chimney is rotationally connected with a transmission shaft, the outer surface of the transmission shaft is fixedly connected with an impeller and a first gear, one side of the hot air chimney is rotationally connected with a second gear, and the inner wall of the hot air chimney is fixedly connected with an air deflector;
One end fixedly connected with turbo charger of first steam pipe, turbo charger's pivot department fixedly connected with third gear, turbo charger's output fixedly connected with third steam pipe, the surface of third steam pipe is provided with radiating fin, the one end fixedly connected with phase change heat exchanger that turbo charger was kept away from to the third steam pipe, one side fixedly connected with U type pipe of phase change heat exchanger bottom, the one end fixedly connected with first water tank that phase change heat exchanger was kept away from to the U type pipe.
Preferably, one end of the second steam pipe far away from the water mould is fixedly connected with the first steam pipe.
Preferably, the phase change heat exchanger comprises a box body, a phase change hot plate and an alcohol bin, wherein the phase change hot plate is fixedly connected to the inside of the box body, and the alcohol bin is fixedly connected to the bottom of the phase change hot plate.
Preferably, the top of first water tank is provided with the water pump, the output fixedly connected with back flow of water pump, the one end fixedly connected with second water tank of water pump is kept away from to the back flow, the bottom fixedly connected with inlet tube of second water tank one side.
Preferably, the output end of the phase-change heat exchanger is fixedly connected with a residual air pipe, a valve is arranged on the residual air pipe, one end of the residual air pipe is fixedly connected with a connector, and the residual air pipe is fixedly connected with the moisture absorber through the connector arranged at one end of the residual air pipe.
Preferably, the moisture absorption material filled in the moisture absorber is silica gel.
The invention has the following advantages:
1. According to the phase-change liquid-cooling composite heat dissipation device for the solar panel, the evaporator and the water mold are arranged, and the heat dissipation purpose of the photovoltaic panel is achieved by means of the heat absorption and evaporation of water in the evaporator and the water mold, so that the phase-change heat exchanger is separated from the photovoltaic panel, the requirement on the quality of a phase-change material is reduced while a larger heat transfer space is ensured, the manufacturing difficulty is low, and the cost is reduced;
2. According to the phase-change liquid-cooling composite heat dissipation device for the solar panel, the water mold is arranged on the front surface of the photovoltaic panel and is a transparent glass shell, so that water in the water mold dissipates heat on the front surface of the photovoltaic panel, and meanwhile, partial wavelengths which cannot be utilized by the photovoltaic panel can be absorbed, and reflection and refraction of light are enhanced, so that light utilization is increased;
3. According to the phase-change liquid-cooled composite heat dissipation device of the solar panel, the hot air chimney and the turbocharger are arranged, the hot air chimney absorbs heat of the sun and heats air in the hot air chimney, the air starts to flow from bottom to top after being heated, so that an impeller in the hot air chimney is driven to rotate, power is provided for the turbocharger, the turbocharger provides suction force for the first steam pipe, the circulation rate of steam is accelerated, the temperature of the air in the hot air chimney is changed along with the rising and falling of the temperature of the sun, the flowing speed is changed, the rotating speed of the turbocharger is changed along with the change of the flowing speed, and the suction force is also changed along with the change of the flowing speed, so that the phase-change liquid-cooled composite heat dissipation device has the function of automatically adjusting the cooling rate;
4. According to the phase-change liquid-cooling composite heat dissipation device for the solar panel, the moisture absorber is arranged, and the silica gel in the moisture absorber can absorb steam which cannot be condensed by the phase-change heat exchanger, so that the vacuum degree of the whole sealed environment is maintained, the rapid circulation of the steam is ensured, and the cooling efficiency is improved;
5. according to the phase-change liquid-cooling composite heat dissipation device of the solar panel, the U-shaped pipe is arranged between the phase-change heat exchanger and the first water tank, and the U-shaped pipe is in a shape, so that a certain amount of liquid exists in the U-shaped pipe and is used for sealing the interior of the U-shaped pipe, and the problem that steam in the phase-change heat exchanger is discharged from the U-shaped pipe can be avoided;
6. According to the phase-change liquid-cooling composite heat dissipation device for the solar panel, the alcohol bin is arranged in the phase-change hot plate, alcohol in the alcohol bin absorbs heat of the phase-change material in daytime and is gasified, and heat is dissipated again after the phase-change material cools in the evening, so that the heat exchange efficiency of the phase-change material is accelerated.
Drawings
FIG. 1 is a schematic view of a first view of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1B according to the present invention;
FIG. 4 is a schematic view of a second view of the present invention;
FIG. 5 is a schematic cross-sectional view of a hot air chimney of the present invention;
fig. 6 is a schematic cross-sectional structure of a phase change heat exchanger of the present invention.
In the figure: the solar energy heat collector comprises a 1-photovoltaic panel, a 2-evaporator, a 3-first steam pipe, a 4-conduit, a 5-water mold, a 6-second steam pipe, a 7-hot air chimney, an 8-transmission shaft, a 9-impeller, a 10-first gear, a 11-second gear, a 12-air deflector, a 13-turbocharger, a 14-third gear, a 15-third steam pipe, a 16-radiating fin, a 17-phase change heat exchanger, a 1701-box, a 1702-phase change heat plate, a 1703-alcohol bin, a 18-U-shaped pipe, a 19-first water tank, a 20-water pump, a 21-return pipe, a 22-second water tank, a 23-inlet pipe, a 24-residual air pipe, a 25-valve, a 26-connector and a 27-moisture absorber.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1 and 4, the phase-change liquid-cooled composite heat dissipation device for the solar panel comprises a photovoltaic panel 1, wherein the back surface of the photovoltaic panel 1 is fixedly connected with an evaporator 2, the top of the evaporator 2 is fixedly connected with a first steam pipe 3, the bottom of the evaporator 2 is fixedly connected with a conduit 4, the evaporator 2 is communicated with a water mold 5, one end, far away from the evaporator 2, of the conduit 4 is fixedly connected with the water mold 5, the water mold 5 is a transparent glass shell, the front surface of the photovoltaic panel 1 is provided with water in the water mold 5, the front surface of the photovoltaic panel 1 can dissipate heat, and the existence of the water can absorb part of wavelengths which cannot be utilized by the photovoltaic panel, so that reflection and refraction of light are enhanced, and the top of the water mold 5 is fixedly connected with a second steam pipe 6;
As shown in fig. 1, fig. 2, fig. 4 and fig. 5, a hot air chimney 7 is fixedly connected to one side of the photovoltaic panel 1, the surface of the hot air chimney 7 is black, the heat absorption rate of the hot air chimney 7 is improved, thereby heating air in the hot air chimney 7, the air starts to flow from bottom to top, thereby the air in the hot air chimney 7 can be discharged from the top of the hot air chimney 7, a transmission shaft 8 is rotatably connected to the inner wall of the hot air chimney 7, the transmission shaft 8 penetrates through one side of the hot air chimney 7, an impeller 9 and a first gear 10 are fixedly connected to the outer surface of the transmission shaft 8, the impeller 9 is positioned in the hot air chimney 7, the first gear 10 is positioned at one side outside the hot air chimney 7, the flow of air in the hot air chimney 7 drives the impeller 9 to rotate, the impeller 9 drives the first gear 10 to rotate through the transmission shaft 8, one side of the hot air chimney 7 is rotatably connected with a second gear 11, the second gear 11 is meshed with the first gear 10, thereby the second gear 11 rotates along with the rotation of the impeller 9, the inner wall of the hot air chimney 7 is fixedly connected with an air deflector 12, and the air in the chimney 7 blows air towards one side of the impeller 9, thereby reducing the rotation speed of the impeller 9;
As shown in fig. 1, fig. 2 and fig. 4, one end of the first steam pipe 3 is fixedly connected with a turbocharger 13, a rotating shaft is connected with the turbocharger 13 in a rotating way, a turbine is arranged on the surface of the rotating shaft, a third gear 14 is fixedly connected with the rotating shaft of the turbocharger 13, the third gear 14 is meshed with the second gear 11, so that the impeller 9 rotates by wind power to drive the third gear 11 to rotate, thereby driving the turbine inside the turbocharger 13 to rotate, the turbocharger 13 applies suction force to the first steam pipe 3 to accelerate the flow of steam, thereby accelerating the cooling rate, the output end of the turbocharger 13 is fixedly connected with a third steam pipe 15, the outer surface of the third steam pipe 15 is provided with a radiating fin 16, one end of the third steam pipe 15, which is far away from the turbocharger 13, is fixedly connected with a phase-change heat exchanger 17, the phase-change heat exchanger 17 condenses the steam into liquid, one side of the bottom of the phase-change heat exchanger 17 is fixedly connected with a U-shaped pipe 18, the phase-change heat exchanger 17 discharges the condensed liquid through the U-shaped pipe 18, a certain amount of liquid exists inside the U-shaped pipe 18, so that the liquid can be used for applying suction force to the first steam pipe 3, the cooling rate is accelerated, the cooling rate can be prevented from being discharged from the phase-change heat exchanger 17, and the phase-change heat exchanger 17 is far from the first end is far away from the phase-change heat exchanger 17, which is connected with the phase-change heat exchanger 17, and the phase-change heat exchanger is connected with the first heat exchanger 19.
As a preferred embodiment of the present invention, as shown in fig. 4, an end of the second steam pipe 6 away from the water mold 5 is fixedly connected to the first steam pipe 3, so that the steam in the water mold 5 merges with the steam in the evaporator 2.
As a preferred technical scheme of the present invention, as shown in fig. 6, the phase-change heat exchanger 17 includes a box 1701, a phase-change heat plate 1702 and an alcohol bin 1703, the phase-change heat plate 1702 is fixedly connected to the interior of the box 1701, the phase-change heat plate 1702 makes a closed box body composed of a plurality of metal plates, phase-change materials are filled in the box body, the phase-change heat plate 1702 is distributed in the box 1701 in a crossing manner, so that an S-shaped gas channel is formed in the box 1701, the bottom of the gas channel is connected with the U-shaped tube 18, the alcohol bin 1703 is arranged in the phase-change heat plate 1702, alcohol is filled in the alcohol bin 1703, and is gasified after absorbing heat of the phase-change materials in daytime, and then dissipates heat after cooling in the evening, thereby accelerating heat exchange efficiency of the phase-change materials.
As a preferred technical scheme of the invention, as shown in fig. 1 and 4, a water pump 20 is arranged at the top of a first water tank 19, a return pipe 21 is fixedly connected to the output end of the water pump 20, a second water tank 22 is fixedly connected to one end of the return pipe 21 away from the water pump 20, the water pump 20 pumps out liquid in the first water tank 19 and conveys the liquid into the second water tank 22 through the return pipe 21, a water inlet pipe 23 is fixedly connected to the bottom of one side of the second water tank 22, the water inlet pipe 23 is connected with the bottom of a water mold 5, the liquid in the second water tank 22 enters the water mold 5 through the water inlet pipe 23 along with gravity and then enters the evaporator 2 through a guide pipe 4, and therefore the liquid is filled in the evaporator 2 and the water mold 5.
As a preferred technical scheme of the invention, as shown in fig. 1 and 3, the output end of the phase-change heat exchanger 17 is fixedly connected with the residual air pipe 24, the residual air pipe 24 is provided with the valve 25, one end of the residual air pipe 24 is fixedly connected with the joint 26, the joint 26 is convenient for dismounting the moisture absorber 27, the residual air pipe 24 is fixedly connected with the moisture absorber 27 through the joint 26 arranged at one end of the residual air pipe, the moisture absorber 27 is a container filled with silica gel, excessive steam which cannot be cooled and condensed in the phase-change heat exchanger 17 enters the moisture absorber 27 through the residual air pipe 24 and is absorbed by the silica gel in the moisture absorber 27, so that the vacuum degree of the whole sealing environment is maintained, the silica gel in the moisture absorber 27 can be removed after being saturated, and the silica gel in the moisture absorber 27 can be heated, so that the silica gel in the moisture absorber 27 can be repeatedly utilized.
As a preferred embodiment of the present invention, the moisture absorbing material filled in the moisture absorber 27 is silica gel, which is a high-activity adsorption material, so that the moisture absorber can be used as a drying material to absorb moisture.
The working process of the invention is as follows: the water in the second water tank 22 enters the water mold 5 through the water inlet pipe 23 and then enters the evaporator 2 through the conduit 4, the evaporator 2 and the water mold 5 respectively absorb heat generated by the front and the back of the photovoltaic panel 1 and evaporate, the heat is discharged through the first steam pipe 3 and the second steam pipe 6 respectively, the hot air chimney 7 absorbs the heat of the sun and heats the air in the hot air chimney 7, the air starts to flow from bottom to top after being heated, the air in the hot air chimney 7 is discharged from the top of the hot air chimney 7, the flow of the air in the hot air chimney 7 drives the impeller 9 to rotate, the first gear 10, the second gear 11 and the third gear 14 are matched, the turbine in the turbocharger 13 rotates along with the impeller 9, the turbocharger 13 provides suction to the first steam pipe 3 to accelerate the circulation rate of steam, the steam is cooled by the radiating fins 16 and the phase-change heat exchanger 17 and then condensed into water, the water enters the first water tank 19 through the U-shaped pipe 18, the water in the first water tank 19 is conveyed into the second water tank 22 by the water pump 20 through the return pipe 21 to be recycled, and the redundant steam which is not cooled and condensed in the phase-change heat exchanger 17 enters the moisture absorber 27 through the residual air pipe 24 and is absorbed by silica gel in the moisture absorber 27, so that the vacuum degree of the whole sealing environment is maintained, the moisture absorber 27 can be removed after the silica gel in the moisture absorber 27 is saturated, and the silica gel in the moisture absorber 27 is heated, so that the silica gel can be recycled.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The phase-change liquid-cooling composite heat dissipation device for the solar panel is characterized in that: the solar energy photovoltaic device comprises a photovoltaic plate (1), wherein the back of the photovoltaic plate (1) is fixedly connected with an evaporator (2), the top of the evaporator (2) is fixedly connected with a first steam pipe (3), the bottom of the evaporator (2) is fixedly connected with a guide pipe (4), one end, far away from the evaporator (2), of the guide pipe (4) is fixedly connected with a water mould (5), and the top of the water mould (5) is fixedly connected with a second steam pipe (6);
One side of the photovoltaic panel (1) is fixedly connected with a hot air chimney (7), the inner wall of the hot air chimney (7) is rotationally connected with a transmission shaft (8), the outer surface of the transmission shaft (8) is fixedly connected with an impeller (9) and a first gear (10), one side of the hot air chimney (7) is rotationally connected with a second gear (11), and the inner wall of the hot air chimney (7) is fixedly connected with an air deflector (12);
One end of the first steam pipe (3) is fixedly connected with a turbocharger (13), a rotating shaft of the turbocharger (13) is fixedly connected with a third gear (14), the output end of the turbocharger (13) is fixedly connected with a third steam pipe (15), the outer surface of the third steam pipe (15) is provided with radiating fins (16), one end of the third steam pipe (15) away from the turbocharger (13) is fixedly connected with a phase change heat exchanger (17), one side of the bottom of the phase change heat exchanger (17) is fixedly connected with a U-shaped pipe (18), and one end of the U-shaped pipe (18) away from the phase change heat exchanger (17) is fixedly connected with a first water tank (19);
The top of the first water tank (19) is provided with a water pump (20), the output end of the water pump (20) is fixedly connected with a return pipe (21), one end, far away from the water pump (20), of the return pipe (21) is fixedly connected with a second water tank (22), and the bottom of one side of the second water tank (22) is fixedly connected with a water inlet pipe (23);
The phase change heat exchanger is characterized in that an output end of the phase change heat exchanger (17) is fixedly connected with a residual air pipe (24), a valve (25) is arranged on the residual air pipe (24), one end of the residual air pipe (24) is fixedly connected with a connector (26), and the residual air pipe (24) is fixedly connected with a moisture absorber (27) through the connector (26) arranged at one end of the residual air pipe.
2. The solar panel phase-change liquid-cooled composite heat sink of claim 1, wherein: one end of the second steam pipe (6) far away from the water mould (5) is fixedly connected with the first steam pipe (3).
3. The solar panel phase-change liquid-cooled composite heat sink of claim 1, wherein: the phase change heat exchanger (17) comprises a box body (1701), a phase change hot plate (1702) and an alcohol bin (1703), wherein the phase change hot plate (1702) is fixedly connected to the interior of the box body (1701), and the alcohol bin (1703) is arranged in the phase change hot plate (1702).
4. The solar panel phase-change liquid-cooled composite heat sink of claim 1, wherein: the moisture absorption material filled in the moisture absorber (27) is silica gel.
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| CN202011505906.0A CN112532178B (en) | 2020-12-18 | 2020-12-18 | Phase-change liquid-cooling composite heat dissipation device for solar panel |
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| CN202011505906.0A CN112532178B (en) | 2020-12-18 | 2020-12-18 | Phase-change liquid-cooling composite heat dissipation device for solar panel |
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| CN112532178B true CN112532178B (en) | 2024-06-14 |
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| CN213879752U (en) * | 2020-12-18 | 2021-08-03 | 内蒙古工业大学 | Solar panel phase change liquid cooling composite heat dissipation device |
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| GR1005806B (en) * | 2007-05-17 | 2008-02-05 | Composite solar tower-chimney | |
| CN102509741A (en) * | 2011-12-22 | 2012-06-20 | 华南理工大学 | Compounding phase-change material and device used for heat dissipation of silicon group solar battery |
| JP2014092086A (en) * | 2012-11-05 | 2014-05-19 | Hitachi Ltd | Solar heat power plant, and solar heat storage and radiation apparatus |
| CN106246485A (en) * | 2016-08-30 | 2016-12-21 | 郭远军 | A kind of solar energy dynamical system based on supercharging condensation |
| CN107014111A (en) * | 2017-05-22 | 2017-08-04 | 天津城建大学 | A kind of phase-transition heat-storage solar air source double heat source heat pump hot water electricity generation system |
| CN108768292B (en) * | 2018-06-25 | 2019-07-26 | 中北大学 | A phase change liquid cooling system with solar cell arrangement |
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| CN213879752U (en) * | 2020-12-18 | 2021-08-03 | 内蒙古工业大学 | Solar panel phase change liquid cooling composite heat dissipation device |
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