CN213305350U - Heat dissipation device for photovoltaic module of double-slope roof - Google Patents

Heat dissipation device for photovoltaic module of double-slope roof Download PDF

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Publication number
CN213305350U
CN213305350U CN202021746275.7U CN202021746275U CN213305350U CN 213305350 U CN213305350 U CN 213305350U CN 202021746275 U CN202021746275 U CN 202021746275U CN 213305350 U CN213305350 U CN 213305350U
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CN
China
Prior art keywords
aluminum pipe
heat
photovoltaic module
heat dissipation
chimney
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202021746275.7U
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Chinese (zh)
Inventor
王跃
白建波
丁俊杰
陈浩然
解月阳
李建
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Changzhou Campus of Hohai University
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Changzhou Campus of Hohai University
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Priority to CN202021746275.7U priority Critical patent/CN213305350U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/10Photovoltaic [PV]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The utility model discloses a two sloping roof photovoltaic module heat abstractor, its characterized in that: the solar heat collector comprises a photovoltaic component, fins, a heat dissipation aluminum pipe, a heat collection aluminum pipe and a chimney; the upper surface of the heat dissipation aluminum pipe is connected with the photovoltaic module back plate, and the plurality of fins are uniformly arranged on the inner wall of the upper surface of the heat dissipation aluminum pipe; the heat collection aluminum pipe and the heat dissipation aluminum pipe are connected at an angle equal to an included angle between two slope surfaces of the double-slope roof, and the chimney is connected with the heat collection aluminum pipe. The utility model discloses based on solar chimney effect intensification convection heat transfer principle, utilize fin, graphite alkene further to intensify the heat dissipation simultaneously, can effectively utilize the roof space, reinforce the photovoltaic module heat dissipation, improve the generating efficiency.

Description

Heat dissipation device for photovoltaic module of double-slope roof
Technical Field
The utility model relates to a two sloping roof photovoltaic module heat abstractor belongs to photovoltaic power generation technical field.
Background
With the rapid development of distributed photovoltaic power generation, the distributed photovoltaic power generation system is widely applied to residential houses, commercial buildings, industrial plants and the like. The photovoltaic module is arranged on the roof, so that the space of the roof can be effectively utilized, the photovoltaic module is facilitated to receive solar radiation, and the solar photovoltaic module has wide application prospect. The sloping roof is a roof with a drainage slope larger than 3%, the double-sloping roof is a roof with two folded bidirectional slope surfaces, and the double-sloping roof is widely applied to buildings.
In the process of generating electricity, only a small part of received solar radiation is converted into electric energy, and the majority of the received solar radiation is converted into heat energy, so that the temperature of the photovoltaic module is increased. The temperature has great influence on the generating efficiency of the photovoltaic module, and when the temperature of the photovoltaic module is increased by 1 ℃, the generating efficiency is reduced by 0.5 percent. Therefore, in order to improve the power generation efficiency and the service life of the photovoltaic module, it is necessary to enhance the heat dissipation of the photovoltaic module.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a two sloping roof photovoltaic module heat abstractor can effectively utilize the roof space, strengthens the photovoltaic module heat dissipation, improves the generating efficiency.
The technical scheme of the utility model as follows:
a radiating device for a photovoltaic component of a double-slope roof comprises a photovoltaic component, fins, a radiating aluminum pipe, a heat collecting aluminum pipe and a chimney; the upper surface of the heat dissipation aluminum pipe is connected with the photovoltaic module back plate, and the plurality of fins are uniformly arranged on the inner wall of the upper surface of the heat dissipation aluminum pipe; the heat collection aluminum pipe and the heat dissipation aluminum pipe are connected at an angle equal to an included angle between two slope surfaces of the double-slope roof, and the chimney is connected with the heat collection aluminum pipe.
Preferably, the upper surface of the heat dissipation aluminum pipe is bonded with the photovoltaic module backboard by adopting heat conduction silica gel.
Preferably, the heat dissipation aluminum pipe is mounted on a slope surface at one side where the amount of received solar radiation is the largest, and the heat collection aluminum pipe and the chimney are mounted on a slope surface at the other side.
Preferably, the angle between the chimney and the horizontal plane is 90 degrees.
Preferably, the surface of the heat collection aluminum pipe is provided with a black nickel selective absorption coating.
Preferably, the surface of the fin has a graphene coating.
Preferably, the fins are made of copper.
Has the advantages that: the photovoltaic module can effectively utilize the roof space when being installed on the roof, the chimney and the heat dissipation aluminum pipe are respectively positioned on two slope surfaces of the double-slope roof, the chimney cannot shield the photovoltaic module on the upper surface of the heat dissipation aluminum pipe, and the normal operation of the photovoltaic module cannot be influenced. The fins can enlarge the heat dissipation area and improve the heat dissipation effect; the graphene coating on the surface of the fin has high thermal conductivity, so that heat dissipation can be further enhanced; the solar chimney effect can strengthen the air convection in the heat dissipation aluminum pipe and improve the heat convection effect of the fins and the air. The chimney effect refers to a phenomenon that air rises or falls along a space with a vertical slope to cause air to enhance convection, and the solar chimney effect is to enhance the chimney effect by utilizing solar heat energy. Through the organic combination of solar chimney effect, fin, graphite alkene, can effectively improve the radiating efficiency, reduce photovoltaic module's temperature, improve photovoltaic module's generating efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic plane structure diagram of the photovoltaic module, the fins and the heat dissipation aluminum pipe in matching connection.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, and the following description is only for the purpose of more clearly illustrating the design method of the present invention, and should not be taken as limiting the scope of the present invention.
As shown in fig. 1 and 2, the heat dissipation device for the photovoltaic module of the double-slope roof comprises a photovoltaic module 1, fins 2, a heat dissipation aluminum pipe 3, a heat collection aluminum pipe 4 and a chimney 5; the upper surface of the heat dissipation aluminum pipe 3 is connected with a back plate of the photovoltaic module 1, and the plurality of fins 2 are uniformly arranged on the inner wall of the upper surface of the heat dissipation aluminum pipe 3; the heat collection aluminum pipe 4 and the heat dissipation aluminum pipe 3 are connected at an angle equal to an included angle between two slope surfaces of the double-slope roof, and the chimney 5 is connected with the heat collection aluminum pipe 4.
And the upper surface of the heat dissipation aluminum pipe 3 is bonded with the back plate of the photovoltaic module 1 by adopting heat conduction silica gel. Compared with the same type of material, the heat-conducting silica gel has good heat conductivity, so that heat can be better transferred between the photovoltaic module 1 and the heat-radiating aluminum tube 3.
The heat dissipation aluminum pipe 3 is arranged on a slope surface at one side with the largest solar radiation receiving amount, and the heat collection aluminum pipe 4 and the chimney 5 are arranged on a slope surface at the other side. The heat dissipation aluminum pipe 3 and the chimney 5 are respectively located on two slope surfaces of the double-slope roof, and the chimney 5 cannot shield the photovoltaic module 1 on the upper surface of the heat dissipation aluminum pipe 3.
The included angle between the chimney 5 and the horizontal plane is 90 degrees.
The surface of the heat collection aluminum pipe 4 is provided with a black nickel selective absorption coating. The black nickel selective absorbing coating has high absorption ratio and low emission ratio, can efficiently absorb solar radiation, and improves the temperature of the heat collecting aluminum pipe 4.
The surface of the fin 2 is provided with a graphene coating.
Preferably, the material of the fins 2 is copper.
The working principle of the utility model is as follows:
photovoltaic module 1 can produce a large amount of heats at the electricity generation in-process, and the heat transmits fin 2 in heat dissipation aluminum pipe 3 through heat conduction silica gel, and heat radiating area can be enlarged to fin 2, improves the radiating effect, and the graphite alkene coating on 2 surfaces of fin has the high heat conductivity, can further strengthen the heat dissipation. Air with low external environment temperature enters from an inlet of the heat dissipation aluminum pipe 3, and is subjected to heat convection with the fins 2 in the process of passing through the heat dissipation aluminum pipe 3, so that the photovoltaic module 1 is cooled and heated at the same time. The air enters the heat collecting aluminum pipe 4 after passing through the heat radiating aluminum pipe 3 and is further heated. The surface of the heat collection aluminum tube 4 is provided with a solar selective absorption coating which has high absorption ratio and low emission ratio, can effectively absorb solar radiation and heat air in the tube. Air in the heat collection aluminum pipe 4 expands due to heating and flows upwards due to density difference with air in an external environment, the air is discharged from the chimney 5, at the moment, a negative pressure region can be formed in the heat collection aluminum pipe 4 region, air with low external environment temperature can be sucked in from an inlet of the heat dissipation aluminum pipe 3, and finally an air convection environment is formed in the heat dissipation aluminum pipe 3, so that heat dissipation of the photovoltaic module 1 can be effectively enhanced, and the power generation efficiency of the photovoltaic module is improved.
Other parts not described in detail are prior art, and the present invention is not limited to the above embodiments. The above description is only for the specific embodiments of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention are within the protection scope of the present invention.

Claims (7)

1. The utility model provides a two sloping roof photovoltaic module heat abstractor which characterized in that: the solar heat collector comprises a photovoltaic component, fins, a heat dissipation aluminum pipe, a heat collection aluminum pipe and a chimney; the upper surface of the heat dissipation aluminum pipe is connected with the photovoltaic module back plate, and the plurality of fins are uniformly arranged on the inner wall of the upper surface of the heat dissipation aluminum pipe; the heat collection aluminum pipe and the heat dissipation aluminum pipe are connected at an angle equal to an included angle between two slope surfaces of the double-slope roof, and the chimney is connected with the heat collection aluminum pipe.
2. The heat sink for a photovoltaic module on a double pitched roof as claimed in claim 1, wherein: and the upper surface of the heat dissipation aluminum pipe is bonded with the photovoltaic module backboard by adopting heat conduction silica gel.
3. The heat sink for a photovoltaic module on a double pitched roof as claimed in claim 1, wherein: the heat dissipation aluminum pipe is arranged on a slope surface at one side where the maximum solar radiation quantity is received, and the heat collection aluminum pipe and the chimney are arranged on a slope surface at the other side.
4. The heat sink for a photovoltaic module on a double pitched roof as claimed in claim 1, wherein: the included angle between the chimney and the horizontal plane is 90 degrees.
5. The heat sink for a photovoltaic module on a double pitched roof as claimed in claim 1, wherein: the surface of the heat collection aluminum pipe is provided with a black nickel selective absorption coating.
6. The heat sink for a photovoltaic module on a double pitched roof as claimed in claim 1, wherein: the surface of the fin is provided with a graphene coating.
7. The heat sink for a photovoltaic module on a double pitched roof as claimed in claim 1, wherein: the fins are made of copper.
CN202021746275.7U 2020-08-20 2020-08-20 Heat dissipation device for photovoltaic module of double-slope roof Expired - Fee Related CN213305350U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021746275.7U CN213305350U (en) 2020-08-20 2020-08-20 Heat dissipation device for photovoltaic module of double-slope roof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021746275.7U CN213305350U (en) 2020-08-20 2020-08-20 Heat dissipation device for photovoltaic module of double-slope roof

Publications (1)

Publication Number Publication Date
CN213305350U true CN213305350U (en) 2021-05-28

Family

ID=76026203

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021746275.7U Expired - Fee Related CN213305350U (en) 2020-08-20 2020-08-20 Heat dissipation device for photovoltaic module of double-slope roof

Country Status (1)

Country Link
CN (1) CN213305350U (en)

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