CN213402936U

CN213402936U - Photovoltaic module heat sink

Info

Publication number: CN213402936U
Application number: CN202022140215.7U
Authority: CN
Inventors: 宁家川; 左文礼; 宁飞
Original assignee: Hainan Haichuang Intelligent Technology Co ltd
Current assignee: Hainan Haichuang Intelligent Technology Co ltd
Priority date: 2020-09-26
Filing date: 2020-09-26
Publication date: 2021-06-08
Anticipated expiration: 2030-09-26

Abstract

The utility model provides a photovoltaic module heat sink, its theory of operation as follows: the lower-temperature cooling water from the cooling water tower is driven by the water outlet pump, enters the atomization spraying device for spraying, is uniformly sprayed on the hydrophilic membrane to cool the photovoltaic module, and completes the cooling process of the photovoltaic module; the atomization spraying device is located at the top end of the photovoltaic assembly, the water collecting tank is located at the bottom end of the back face of the photovoltaic assembly, and the atomization spraying device, the hydrophilic film and the water collecting tank are arranged from top to bottom and are located at the back face of the photovoltaic assembly to form a cooling structure of the photovoltaic assembly. The utility model discloses can reduce the extravagant water resource of cooling in-process, increase the cooling surface area, promote the cooling effect.

Description

Photovoltaic module heat sink

Technical Field

The invention relates to the field of solar photovoltaics, in particular to a photovoltaic module cooling device.

Background

Photovoltaic modules are commonly referred to as solar panels and are formed by solar cells. Since the current and the voltage of the single solar cell are very small, the single solar cell is firstly connected in series to obtain high voltage, then connected in parallel to obtain high current, and then output after passing through a diode. The power generation efficiency of a photovoltaic power generation system is very sensitive to the temperature of a photovoltaic module. When the temperature of the photovoltaic module increases, the output power of the photovoltaic module may be reduced. Research shows that the conversion efficiency of the photovoltaic module is reduced by 0.4-0.5% when the temperature of the photovoltaic module is increased by 1 ℃. Therefore, the temperature reduction of the photovoltaic module plays an important role in improving the photovoltaic efficiency, and the photovoltaic module temperature reduction device is often used for improving the conversion efficiency and the output power of the photovoltaic module.

At present, photovoltaic modules are cooled by active and passive means. The active mode is to store the heat generated by the photovoltaic module through the device, so as to realize the reutilization of the heat; one of the passive modes is that a water pipe is fully paved on the back surface of the photovoltaic module, the heat of the photovoltaic module is taken away through the flow of water in the water pipe, and the other mode is direct water cooling, so that even if cold water is directly contacted with the surface of the photovoltaic module, the photovoltaic module is cooled through the flowing water. The direct water cooling mode is a commonly used cooling mode at present because the cooling speed is high and the photovoltaic module can be quickly restored to a low temperature. However, when the cooling is performed by adopting the mode, the water flowing down from the photovoltaic module can be rarely recycled, the waste of water resources can be caused, and the cooling area of the photovoltaic module is small due to the fact that the liquid distribution is uneven in the direct water cooling mode, and the cooling effect is influenced.

Disclosure of Invention

The utility model aims to provide a: to the technical problem who exists, provide a photovoltaic module heat sink that cooling effect is better.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a photovoltaic module heat sink comprising: photovoltaic module (1), hydrophilic membrane (2), atomizing spray set (3), photovoltaic module support (4), play water pump (5), cooling tower (6), return water pump (7), water catch bowl (8), its characterized in that: the water outlet of the cooling water tower (6) is connected with the inlet of the water outlet pump (5), the outlet of the water outlet pump (5) is connected with the inlet of the atomization spraying device (3), the outlet of the atomization spraying device (3) is communicated with the top end of the hydrophilic membrane (2), the bottom end of the hydrophilic membrane (2) is communicated with the inlet of the water collecting tank (8), the outlet of the water collecting tank (8) is connected with the inlet of the water return pump (7), and the outlet of the water return pump (7) is connected with the inlet of the cooling water tower (6), so that a cooling water circulation working line is formed; atomizing spray set (3) are located the top of photovoltaic module (1), and water catch bowl (8) are located the bottom at the photovoltaic module (1) back, and atomizing spray set (3), hydrophilic membrane (2), water catch bowl (8) are arranged from top to bottom, all are located the back of photovoltaic module (1), constitute the cooling structure of photovoltaic module (1).

Preferably, the hydrophilic film (2) is equal to the photovoltaic module (1) in size and is in close contact with the photovoltaic module (1) in a film pasting mode.

Preferably, the cooling water tower (6) comprises a water replenishing port and a water softening device.

Preferably, the atomization spraying device (3) is a long-strip-shaped nozzle, and the sprayed water is in a long strip shape.

Preferably, the water collecting tank (8) is a cuboid water container with an opening at the upper end and a sealed lower end.

Preferably, the flow and the lift of the water outlet pump (5) and the water return pump (7) are the same, and are in a state of being opened or closed simultaneously.

Preferably, a temperature sensing device is mounted on the photovoltaic module (1) and controls the opening of the water outlet pump (5) and the water return pump (7).

Compared with the prior art, the utility model discloses have as follows and show the effect:

according to the technical scheme, the utility model arranges the spraying device at the upper end of the photovoltaic component, uses the spraying device to spray water to the hydrophilic film at the back of the photovoltaic component in an atomizing way so as to cool the photovoltaic component, uses the water collecting tank at the lower end of the photovoltaic component to collect water flow on the surface of the photovoltaic component, and drives the water flow back to the cooling water tower through the water return pump,

the recycling of water used for cooling is realized, and water resources wasted in the cooling process can be reduced; additionally, the utility model discloses utilize hydrophilic membrane to cool down, hydrophilic membrane is because hydrophilic effect for spray set cloth liquid is good, and the cooling water directly sprays at the photovoltaic module back with the tradition and compares, and hydrophilic membrane greatly increased refrigerated surface area has promoted the cooling effect with photovoltaic module closely contact.

Drawings

Fig. 1 is a schematic structural flow diagram of an embodiment of the present invention.

In the figure: 1. photovoltaic module, 2, hydrophilic membrane, 3, atomizing spray set, 4, photovoltaic module support, 5, the water pump that goes out, 6, cooling tower, 7, return water pump, 8, water catch bowl.

Detailed Description

The present invention is further illustrated by the following examples.

A photovoltaic module cooling device, as shown in fig. 1, comprising: photovoltaic module 1, hydrophilic membrane 2, atomizing spray set 3, photovoltaic module support 4, play water pump 5, cooling tower 6, return water pump 7, water catch bowl 8, its theory of operation as follows: the lower-temperature cooling water from the cooling water tower 6 is driven by the water outlet pump 5, enters the atomization spraying device 3 for spraying, is uniformly sprayed on the hydrophilic membrane 2 to cool the photovoltaic component 1, and finishes the cooling process of the photovoltaic component 1, the temperature of the cooling water rises, the heated cooling water falls into the water collecting tank 8 due to the dead weight, is driven by the water return pump 7, flows back to the cooling water tower 6, is cooled in the cooling water tower, and finishes the working cycle of the cooling water; atomizing spray set 3 is located photovoltaic module 1's top, and water catch bowl 8 is located the bottom at the photovoltaic module 1 back, and atomizing spray set 3, hydrophilic membrane 2, water catch bowl 8 are arranged from top to bottom, all are located photovoltaic module 1's back, constitute photovoltaic module 1's cooling structure.

The size of the hydrophilic film 2 is equal to that of the photovoltaic module 1, and the hydrophilic film is closely contacted with the photovoltaic module 1 in a film pasting mode, so that the heat exchange area is increased, and the heat exchange temperature difference is ensured to be reduced.

The cooling water tower 6 comprises a water replenishing port and a water softening device, so that the loss of cooling water in the circulating process can be timely replenished.

The atomizing and spraying device 3 is a strip-shaped nozzle, and the sprayed water is in a strip shape.

The water collecting tank 8 is a cuboid water container with an opening at the upper end and a sealed lower end.

The flow and the lift of the water outlet pump 5 and the water return pump 7 are the same, and the two pumps are in a state of being opened or closed simultaneously.

And a temperature sensing device is arranged on the photovoltaic component 1 and used for controlling the opening of the water outlet pump 5 and the water return pump 7.

Claims

1. A photovoltaic module heat sink comprising: photovoltaic module (1), hydrophilic membrane (2), atomizing spray set (3), photovoltaic module support (4), play water pump (5), cooling tower (6), return water pump (7), water catch bowl (8), its characterized in that: the water outlet of the cooling water tower (6) is connected with the inlet of the water outlet pump (5), the outlet of the water outlet pump (5) is connected with the inlet of the atomization spraying device (3), the outlet of the atomization spraying device (3) is communicated with the top end of the hydrophilic membrane (2), the bottom end of the hydrophilic membrane (2) is communicated with the inlet of the water collecting tank (8), the outlet of the water collecting tank (8) is connected with the inlet of the water return pump (7), and the outlet of the water return pump (7) is connected with the inlet of the cooling water tower (6), so that a cooling water circulation working line is formed; atomizing spray set (3) are located the top of photovoltaic module (1), and water catch bowl (8) are located the bottom at the photovoltaic module (1) back, and atomizing spray set (3), hydrophilic membrane (2), water catch bowl (8) are arranged from top to bottom, all are located the back of photovoltaic module (1), constitute the cooling structure of photovoltaic module (1).

2. The photovoltaic module cooling device according to claim 1, wherein: the size of the hydrophilic film (2) is equal to that of the photovoltaic module (1), and the hydrophilic film is closely contacted with the photovoltaic module (1) in a film pasting mode.

3. The photovoltaic module cooling device according to claim 1, wherein: the cooling water tower (6) comprises a water replenishing port and a water softening device.

4. The photovoltaic module cooling device according to claim 1, wherein: the atomizing and spraying device (3) is a strip-shaped nozzle, and the sprayed water is in a strip shape.

5. The photovoltaic module cooling device according to claim 1, wherein: the water collecting tank (8) is a cuboid water container with an opening at the upper end and a sealed lower end.

6. The photovoltaic module cooling device according to claim 1, wherein: the flow and the lift of the water outlet pump (5) and the water return pump (7) are the same, and the water outlet pump and the water return pump are in a state of being opened or closed simultaneously.

7. The photovoltaic module cooling device according to claim 1, wherein: and a temperature sensing device is arranged on the photovoltaic module (1) and controls the opening of the water outlet pump (5) and the water return pump (7).