CN215498889U - Photovoltaic photo-thermal solar integrated plate - Google Patents

Photovoltaic photo-thermal solar integrated plate Download PDF

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Publication number
CN215498889U
CN215498889U CN202121216886.5U CN202121216886U CN215498889U CN 215498889 U CN215498889 U CN 215498889U CN 202121216886 U CN202121216886 U CN 202121216886U CN 215498889 U CN215498889 U CN 215498889U
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CN
China
Prior art keywords
heat
collecting plate
plate
photovoltaic
indentation
Prior art date
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
CN202121216886.5U
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Chinese (zh)
Inventor
高建周
刘永奇
詹林山
王星
贾天洲
许继峥
张子良
杨大勇
王立娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhong Wei Construction Engineering Co ltd
Hebei Construction Group Corp Ltd
Original Assignee
Zhong Wei Construction Engineering Co ltd
Hebei Construction Group Corp Ltd
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Application filed by Zhong Wei Construction Engineering Co ltd, Hebei Construction Group Corp Ltd filed Critical Zhong Wei Construction Engineering Co ltd
Priority to CN202121216886.5U priority Critical patent/CN215498889U/en
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Publication of CN215498889U publication Critical patent/CN215498889U/en
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Anticipated expiration legal-status Critical

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • 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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  • Photovoltaic Devices (AREA)

Abstract

The utility model discloses a photovoltaic photo-thermal solar integrated plate which comprises a photovoltaic plate, wherein a light receiving surface of the photovoltaic plate is provided with toughened glass, and the toughened glass and the photovoltaic plate are fixedly arranged in a frame; the backlight surface of photovoltaic board is provided with the heat-collecting plate, and the heat-collecting plate is laminated with the back of photovoltaic board, and the heat-collecting plate is fixed to be set up in the frame, and the inside of heat-collecting plate is provided with snakelike working medium's flow chamber, and the one end of heat-collecting plate is provided with working medium import and working medium export, and the working medium export communicates with external water tank, and the back of heat-collecting plate is provided with the heat preservation, and the outside of heat preservation is provided with the panel of protection, panel and frame fixed connection. The photovoltaic photo-thermal solar integrated plate adopting the structure can solve the problems that the power generation efficiency is reduced and the energy cannot be well utilized due to high temperature of the existing photovoltaic plate.

Description

Photovoltaic photo-thermal solar integrated plate
Technical Field
The utility model relates to the technical field of photovoltaic panel structures, in particular to a photovoltaic photo-thermal solar integrated panel.
Background
The function of a photovoltaic panel is to absorb sunlight and convert light energy into electrical energy, and the main factors affecting the power generation efficiency of the photovoltaic panel are the intensity of light and the life of the photovoltaic cell. Along with the prolonging of the service time of the photovoltaic panel, the power generation amount is gradually reduced, and the main influence factor is the temperature of the photovoltaic panel. When the temperature of the photovoltaic module rises, the output power of the photovoltaic module can drop. The peak temperature coefficient of the photovoltaic module is approximately between-0.38 and 0.44%/DEG C, namely the temperature is increased, and the power generation amount of the photovoltaic module is reduced. Theoretically, the power generation of a photovoltaic power station can be reduced by about 0.44% every time the temperature is increased by 1 ℃. Taking 275W photovoltaic panel as an example, the original temperature of the photovoltaic panel is 25 ℃, and then the power generation amount is reduced by 1.1W every time the temperature rises by 1 ℃.
The reflectivity of the front side of the cell in the photovoltaic panel can be below 4%, that is to say, more than 96% of light energy is absorbed by the photovoltaic panel, but only less than 20% of light energy is converted into electric energy, other light energy is converted into heat energy, the heat energy is gathered on the back side of the photovoltaic panel and in the frame of the photovoltaic module, and then slowly diffused to the surrounding space, the ground or a building roof through air. On one hand, the generation of a large amount of heat causes the temperature of the photovoltaic module to rise and the power generation efficiency to be reduced; on the other hand, a large amount of energy is dissipated, and the energy cannot be well utilized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a photovoltaic photo-thermal solar integrated plate, which solves the problems that the power generation efficiency is reduced and the energy cannot be well utilized due to high temperature of the existing photovoltaic plate.
In order to achieve the purpose, the utility model provides a photovoltaic photo-thermal solar integrated plate which comprises a photovoltaic plate, wherein a light receiving surface of the photovoltaic plate is provided with toughened glass, and the toughened glass and the photovoltaic plate are fixedly arranged in a frame; the backlight surface of photovoltaic board is provided with the heat-collecting plate, and the heat-collecting plate is laminated with the back of photovoltaic board, and the heat-collecting plate is fixed to be set up in the frame, and the inside of heat-collecting plate is provided with snakelike working medium's flow chamber, and the one end of heat-collecting plate is provided with working medium import and working medium export, and the working medium export communicates with external water tank, and the back of heat-collecting plate is provided with the heat preservation, and the outside of heat preservation is provided with the panel of protection, panel and frame fixed connection.
Preferably, a heat insulation sealant is arranged at the joint of the heat collection plate and the frame.
Preferably, the panel is toughened glass, a plastic plate or a metal plate; the heat insulation board is a polyurethane board.
Preferably, the heat collecting plate is formed by laminating or welding an aluminum plate or a copper plate with a U-shaped structure, and a closed cavity structure is formed inside the heat collecting plate.
Preferably, a press line is arranged inside the heat collecting plate, one end of the press line is connected with one end of the heat collecting plate, a working medium circulation channel is arranged between the other end of the press line and the other end of the heat collecting plate, the press lines on the front surface and the rear surface of the heat collecting plate are connected in a press fit mode, the press lines are distributed at two ends of the heat collecting plate in a staggered mode, and an integral snake-shaped flow cavity is formed inside the heat collecting plate.
Preferably, the two sides of the heat collecting plate are respectively provided with a first indentation and a second indentation, the press line is arranged between the first indentation and the second indentation, the two sides of the press line are symmetrically provided with a third indentation, the three indentations on the adjacent press lines are distributed in a staggered manner, the first indentation, the second indentation and the third indentation on the front surface and the rear surface of the heat collecting plate are in press fit connection, a snake-shaped flow cavity is formed between the first indentation and the third indentation, between the third indentation and between the third indentation and the second indentation, one end of the flow cavity is provided with a working medium inlet, and the other end of the flow cavity is provided with a working medium outlet.
According to the photovoltaic photo-thermal solar integrated plate, the heat collecting plate is attached to the back surface of the photovoltaic plate, the serpentine working medium flowing cavity is formed inside the heat collecting plate through the press-fit line, the first indentation, the second indentation and the third indentation, the flowing time of a working medium in the heat collecting plate is prolonged, the heat exchange effect is improved, and the utilization rate of energy is increased; and the working medium can effectively reduce the temperature of the photovoltaic panel after absorbing heat, and the power generation efficiency of the photovoltaic panel is improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic view of a photovoltaic-photothermal solar integrated panel according to an embodiment of the present invention;
FIG. 2 is a schematic view of a heat collection plate of an embodiment of the photovoltaic-photothermal solar integrated panel of the present invention;
FIG. 3 is a schematic view of a partial internal structure of a heat collecting plate according to an embodiment of the photovoltaic-photothermal solar integrated plate of the present invention.
Reference numerals
1. Tempering the glass; 2. a photovoltaic panel; 3. a frame; 4. a heat collecting plate; 5. a heat-insulating layer; 6. a panel; 7. a working medium inlet; 8. a working medium outlet; 9. indentation I; 10. pressing marks II; 11. a crimping line; 12. pressing marks III; 13. a flow chamber.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
Fig. 1 is a schematic structural diagram of an embodiment of a photovoltaic-photothermal solar integrated panel according to the present invention. As shown in the figure, the photovoltaic photo-thermal solar integrated plate comprises a photovoltaic plate 2, wherein tempered glass 1 is arranged on the light receiving surface of the photovoltaic plate 2, and the tempered glass 1 has a protection effect on the photovoltaic plate 2. Toughened glass 1 and photovoltaic board 2 are fixed to be set up in frame 3. The connection mode of the photovoltaic panel 2 and the toughened glass 1 with the frame 3 selects the existing connection structure for connection. The backlight surface of the photovoltaic panel 2 is provided with a heat collecting plate 4, and the heat collecting plate 4 is attached to the back surface of the photovoltaic panel 2, so that heat on the back surface of the photovoltaic panel 2 can be effectively transmitted to the heat collecting plate 4. The heat collecting plate 4 is fixedly arranged in the frame 3 by means of screws or welding. The joint of the heat collecting plate 4 and the frame 3 is provided with heat-insulating sealant which can effectively reduce the heat loss.
The heat collecting plate 4 is formed by pressing or welding an aluminum plate or a copper plate with a U-shaped cross section, the aluminum plate or the copper plate with the U-shaped cross section is an aluminum disc or a copper disc with the periphery bent upwards, and a closed cavity structure is formed inside the heat collecting plate 4. The heat collecting plate 4 is preferably a copper plate, and the heat conducting effect of the copper plate is better. One end of the heat collection plate 4 is provided with a working medium inlet 7 and a working medium outlet 8, the working medium outlet 8 is communicated with an external water tank, the working medium flows into a cavity in the heat collection plate 4 through the working medium inlet 7 and is used for absorbing heat of the photovoltaic plate 2, and then flows out of the water tank through the working medium outlet 8 and exchanges heat with water in the water tank, so that the solar water heater is used in daily life and the like.
The back of the heat collecting plate 4 is provided with a heat insulating layer 5 which is a polyurethane plate. The heat preservation 5 can effectively reduce heat dissipation and improve the utilization rate of energy. The outside of heat preservation 5 is provided with the panel 6 of protection, panel 6 and frame 3 fixed connection. The panel 6 protects the insulation 5 and the internal heat collecting plates 4. The panel 6 can be made of toughened glass 1, plastic plate or metal plate, preferably toughened glass 1.
FIG. 2 is a schematic structural view of a heat collecting plate of an embodiment of a photovoltaic-photothermal solar integrated plate of the present invention, where the lower press line in FIG. 2 is simplified, the structure of the first press mark in FIG. 2 is the same, the structure of the second press mark is the same, and the structure of the press line and the structure of the third press mark are the same; FIG. 3 is a schematic view of a partial internal structure of a heat collecting plate according to an embodiment of the photovoltaic-photothermal solar integrated plate of the present invention. As shown in the figure, a stitching line 11 is arranged inside the heat collecting plate 4, one end of the stitching line 11 is hermetically connected with one end of the heat collecting plate 4, and a working medium circulation channel is arranged between the other end of the stitching line 11 and the other end of the heat collecting plate 4. The press-fit lines 11 of the front and rear surfaces of the heat collecting plate 4 are press-fit connected, that is, the front and rear surfaces of the heat collecting plate 4 are symmetrically stamped by using pressing heads, so that the press-fit lines 11 of the front and rear surfaces of the heat collecting plate 4 are press-fit welded together, and a flow chamber 13 is formed inside the heat collecting plate 4. The front surface and the rear surface of the heat collecting plate 4 are respectively attached to the surface of the photovoltaic plate 2 attached to the heat collecting plate 4 and the surface of the heat insulating layer 5 attached to the heat collecting plate 4. The pressure-bonding lines 11 are distributed alternately at both ends of the heat collecting plate 4, forming an integral serpentine flow chamber 13 inside the heat collecting plate 4.
The two sides of the heat collecting plate 4 are respectively and uniformly provided with a first indentation 9 and a second indentation 10, and the first indentation 9 and the second indentation 10 are symmetrically arranged. The stitching line 11 is arranged between the first impression 9 and the second impression 10, and the stitching line 11 is uniformly distributed between the first impression 9 and the second impression 10. The two sides of the stitching line 11 are symmetrically provided with three indentations 12, and the three indentations 12 and the stitching line 11 are of an integral stamping structure. The indentations three 12 on adjacent bondlines 11 are staggered. The first indentation 9, the second indentation 10 and the third indentation 12 of the front and rear surfaces of the heat collecting plate 4 are in press fit connection, that is, the first indentation 9, the second indentation 10 and the third indentation 12 are formed by symmetrically punching the front and rear surfaces of the heat collecting plate 4 by a pressing head, and the front and rear surfaces of the heat collecting plate 4 are pressed together by the first indentation 9, the second indentation 10 and the third indentation 12. A serpentine flow cavity 13 is formed between the first indentation 9 and the third indentation 12, between the third indentation 12 and the third indentation 12, and between the third indentation 12 and the second indentation 10, that is, the flow cavity 13 is integrally serpentine, and a liquid level serpentine structure is formed in the flow cavity 13 on the same layer, so that the flow time and the heat exchange time of the working medium in the heat collection plate 4 are increased, and the heat exchange effect is improved. The stitching line 11, the first indentation 9, the second indentation 10, the third indentation 12 and the edge of the heat collecting plate 4 may be formed by using an integrated stamping die, which facilitates the formation of the flow cavity 13 inside the heat collecting plate 4.
The working medium inlet 7 is located at one end of the flow chamber 13, and the working medium outlet 8 is located at the other end of the flow chamber 13.
Therefore, the photovoltaic photo-thermal solar integrated plate adopting the structure can solve the problems that the power generation efficiency is reduced and the energy cannot be well utilized due to high temperature of the existing photovoltaic plate.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the utility model without departing from the spirit and scope of the utility model.

Claims (6)

1. A photovoltaic photo-thermal solar integrated plate comprises a photovoltaic plate, wherein a light receiving surface of the photovoltaic plate is provided with toughened glass, and the toughened glass and the photovoltaic plate are fixedly arranged in a frame; the method is characterized in that: the backlight surface of photovoltaic board is provided with the heat-collecting plate, and the heat-collecting plate is laminated with the back of photovoltaic board, and the heat-collecting plate is fixed to be set up in the frame, and the inside of heat-collecting plate is provided with snakelike working medium's flow chamber, and the one end of heat-collecting plate is provided with working medium import and working medium export, and the working medium export communicates with external water tank, and the back of heat-collecting plate is provided with the heat preservation, and the outside of heat preservation is provided with the panel of protection, panel and frame fixed connection.
2. A photovoltaic-photothermal solar integrated panel according to claim 1, wherein: and a heat-insulating sealant is arranged at the joint of the heat collection plate and the frame.
3. A photovoltaic-photothermal solar integrated panel according to claim 1, wherein: the panel is toughened glass, a plastic plate or a metal plate; the heat insulation board is a polyurethane board.
4. A photovoltaic-photothermal solar integrated panel according to claim 1, wherein: the heat collecting plate is formed by pressing or welding an aluminum plate or a copper plate with a U-shaped structure, and a closed cavity structure is formed inside the heat collecting plate.
5. A photovoltaic-photothermal solar integrated panel according to claim 1, wherein: the heat collecting plate is characterized in that a press line is arranged inside the heat collecting plate, one end of the press line is connected with one end of the heat collecting plate, a working medium circulation channel is arranged between the other end of the press line and the other end of the heat collecting plate, the press lines on the front surface and the rear surface of the heat collecting plate are connected in a press-fit mode, the press lines are distributed at two ends of the heat collecting plate in a staggered mode, and an integral snake-shaped flow cavity is formed inside the heat collecting plate.
6. A photovoltaic-photothermal solar integrated panel according to claim 5, wherein: the heat collecting plate is characterized in that a first indentation and a second indentation are respectively arranged on two sides of the heat collecting plate, a press line is arranged between the first indentation and the second indentation, a third indentation is symmetrically arranged on two sides of the press line, the three indentations on the adjacent press lines are distributed in a staggered manner, the first indentation, the second indentation and the third indentation on the front surface and the rear surface of the heat collecting plate are connected in a press fit manner, a snake-shaped flow cavity is formed between the first indentation and the third indentation, between the third indentation and between the third indentation and the second indentation, a working medium inlet is arranged at one end of the flow cavity, and a working medium outlet is arranged at the other end of the flow cavity.
CN202121216886.5U 2021-06-02 2021-06-02 Photovoltaic photo-thermal solar integrated plate Expired - Fee Related CN215498889U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121216886.5U CN215498889U (en) 2021-06-02 2021-06-02 Photovoltaic photo-thermal solar integrated plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121216886.5U CN215498889U (en) 2021-06-02 2021-06-02 Photovoltaic photo-thermal solar integrated plate

Publications (1)

Publication Number Publication Date
CN215498889U true CN215498889U (en) 2022-01-11

Family

ID=79782079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121216886.5U Expired - Fee Related CN215498889U (en) 2021-06-02 2021-06-02 Photovoltaic photo-thermal solar integrated plate

Country Status (1)

Country Link
CN (1) CN215498889U (en)

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Granted publication date: 20220111