Device for improving generating capacity of color steel roof distributed photovoltaic power generation system

Abstract

The utility model discloses a device for improving the generating capacity of a distributed photovoltaic power generation system on a color steel roof, which comprises a ground, a plant is arranged above the ground, a plurality of photovoltaic power generation panels are arranged above the plant, water pipelines are laid between the adjacent photovoltaic power generation panels, and the water pipelines are communicated with the plant. A plurality of high-pressure sprayers are installed on the water pipelines, communicating pipes are installed between the adjacent water pipelines, water guiding and sludge discharging devices are installed at the bottoms of the photovoltaic power generation panels, a water suction pump is installed on the left side of the plant, a water conveying pipe is installed at the output end of the water suction pump, and water guiding grooves are formed in the periphery of the plant; and a water guide pipe is mounted below the water guide groove. According to the device for improving the generating capacity of the distributed photovoltaic power generation system on the color steel roof, the spraying structure is arranged to cool the color steel roof, the temperature rise loss of a photovoltaic module is reduced, and the generating capacity of a photovoltaic power station is improved; meanwhile, the photovoltaic module is automatically cleaned, the cleaning effect is guaranteed, and the power generation capacity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation systems, and particularly relates to a device for improving the power generation amount of a distributed photovoltaic power generation system on a color steel roof. Background Technique

[0002] A photovoltaic power generation system is a power generation system that directly converts solar radiant energy into electrical energy by using the photovoltaic effect of photovoltaic cells. This system mainly consists of three major parts: solar panels (modules), a controller, and an inverter. The main components are composed of electronic components and do not involve mechanical components. Therefore, photovoltaic power generation equipment is extremely refined, reliable, has a long service life, and is simple to install and maintain. Now, some photovoltaic power generation systems are installed on color steel roofs.

[0003] Chinese authorized announcement number CN209545529U discloses a roof photovoltaic power generation system, which relates to the technical field of photovoltaic power generation. The key points of its technical solution are that it includes a photovoltaic conversion type solar panel and a photothermal conversion type solar panel paved on the sunny side of the roof. A hot water storage tank is arranged between the photothermal conversion type solar panel and the roof. A transparent protection plate is fixedly paved on the upper surfaces of the photothermal conversion type solar panel and the photovoltaic conversion type solar panel. The protection plate is connected with a dust cleaning mechanism. The utility model solves the problem that the current roof solar water heater has a low sunlight utilization rate for converting sunlight into heat energy of water. By directly installing and laying the photothermal conversion type solar panel and the photovoltaic conversion type solar panel on the roof, the utilization rate of roof solar energy is improved.

[0004] The existing distributed photovoltaic power generation system on a color steel roof has the following problems:

[0005] (1) The temperature of the color steel roof surface in summer is extremely high, reaching 40 - 50 °C, or even higher. Moreover, the installation angle of the components is small, resulting in poor ventilation on the back of the components, and the heat cannot be dissipated in time. The power generation performance characteristic of photovoltaic components is that on the basis of 25 °C, for every 1 °C increase, the power loss of photovoltaic components is about 0.4%. Calculated according to a 25 °C increase in summer temperature, the power loss of photovoltaic components is 10%. Currently, there is no good cooling method in the industry, which seriously affects the power generation efficiency;

[0006] (2) Currently, in the industry, after the photovoltaic components are soiled, only the roof water pipe is borrowed to manually or mechanically clean the photovoltaic components, and the cleaning water is not recycled, and the labor cost of the cleaning operation is relatively high;

[0007] (3) The photovoltaic components are flatly installed on the roof surface. Generally, the position of the bottom edge frame of the components is relatively high. When the rain is small, such as natural rainfall, dust will accumulate at the bottom of the photovoltaic components, forming a mud belt, which affects the power generation amount of the photovoltaic components. Some projects have installed a water guiding and mud discharging device at the bottom edge of the photovoltaic components, which has greatly improved the problem of the mud belt at the bottom of the photovoltaic components, but it needs to rely on rainfall, and the photovoltaic components cannot be automatically cleaned in rainless weather;

[0008] (4) There is a risk of fire on the roof of the color steel roof distributed photovoltaic power station, and there have been many fire accidents. At present, only some roofs are equipped with fire extinguishers. However, once a fire breaks out, people cannot go to the roof to fight the fire, and basically rely on fire fighting and rescue. For this reason, we propose a device to improve the power generation of the color steel roof distributed photovoltaic power generation system. Summary of the Invention

[0009] The purpose of the present invention is to provide a device to improve the power generation of the color steel roof distributed photovoltaic power generation system, so as to solve the following problems existing in the existing color steel roof distributed photovoltaic power generation system in the above background technology:

[0010] (1) In summer, the temperature of the color steel roof is extremely high, up to 40-50 °C or even higher. Moreover, the installation angle of the components is small, resulting in poor ventilation on the back of the components, and the heat cannot be dissipated in time. The power generation performance characteristic of the photovoltaic module is that on the basis of 25 °C, for every 1 °C increase in temperature, the power loss of the photovoltaic module is about 0.4%. Calculated according to a 25 °C increase in summer temperature, the power loss of the photovoltaic module is 10%. At present, there is no good cooling method in the industry, which seriously affects the power generation efficiency;

[0011] (2) At present, after the photovoltaic modules in the industry are soiled, only the roof water pipe is borrowed to manually or mechanically clean the photovoltaic modules, and the cleaning water is not recycled, and the labor cost of the cleaning operation is relatively high;

[0012] (3) The photovoltaic modules are flatly installed on the roof. Generally, the position of the bottom edge of the module is relatively high. When the rain is small, such as natural rainfall, dust will accumulate at the bottom of the photovoltaic module, forming a mud belt, which affects the power generation of the photovoltaic module. In some projects, a water guiding and mud discharging device is installed at the bottom edge of the photovoltaic module, which greatly improves the problem of the mud belt at the bottom of the photovoltaic module. However, it relies on rainfall, and the photovoltaic modules cannot be automatically cleaned in rainless weather;

[0013] (4) There is a risk of fire on the roof of the color steel roof distributed photovoltaic power station, and there have been many fire accidents. At present, only some roofs are equipped with fire extinguishers. However, once a fire breaks out, people cannot go to the roof to fight the fire, and basically rely on fire fighting and rescue.

[0014] To achieve the above object, the present utility model provides the following technical solution: A device for increasing the power generation of a distributed photovoltaic power generation system on a color steel roof, including the ground, a factory building is installed above the ground, a plurality of photovoltaic panels are installed above the factory building, a water pipeline is laid between adjacent photovoltaic panels, a plurality of high-pressure nozzles are installed on the water pipeline, a connecting pipe is installed between adjacent water pipelines, a water guiding and mud discharging device is installed at the bottom of the photovoltaic panel, a water pump is installed on the left side of the factory building, a water delivery pipe is installed at the output end of the water pump, a water guiding groove is installed around the factory building, a water guiding pipe is installed below the water guiding groove, and a temperature sensor is installed on the upper surface of the factory building;

[0015] An underground water storage tank, which is opened inside the ground.

[0016] Preferably, the high-pressure nozzles are communicated with the water pipeline, and the high-pressure nozzles are evenly distributed along the outer surface of the water pipeline.

[0017] Preferably, the input end of the water pump is detachably connected to the underground water storage tank, and the output end of the water pump is communicated with the water pipeline through the water delivery pipe.

[0018] Preferably, adjacent two water pipelines are communicated through the connecting pipe.

[0019] Preferably, the water guiding groove is communicated with the underground water storage tank through the water guiding pipe.

[0020] Preferably, the underground water storage tank further includes:

[0021] A variable-frequency water pump, which is installed in the upper part inside the underground water storage tank, and a liquid level sensor is installed on the right side of the variable-frequency water pump.

[0022] Compared with the prior art, the present utility model provides a device for increasing the power generation of a distributed photovoltaic power generation system on a color steel roof, having the following beneficial effects: The device for increasing the power generation of the distributed photovoltaic power generation system on the color steel roof cools the color steel roof by setting a spraying structure, reduces the temperature rise loss of the photovoltaic module, and improves the power generation of the photovoltaic power station; at the same time, automatically cleans the photovoltaic module, ensures the cleaning effect, and improves the power generation; and realizes the filtration and recycling of water resources, reduces the waste of water resources; and when a fire occurs on the roof, the spraying system can be automatically started to extinguish the fire and reduce the loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 For the present utility model Figure 1 is an enlarged schematic diagram of the structure at A in;

[0025] Figure 3 This is a schematic diagram of the connection structure between the factory building of the present utility model and the temperature sensor.

[0026] In the figure: 1. Factory building; 2. Ground; 3. Underground water storage tank; 4. Liquid level sensor; 5. Variable frequency water pump; 6. Water pump; 7. Water delivery pipe; 8. Water pipeline; 9. Photovoltaic power generation panel; 10. Water guiding and sludge discharging device; 11. Water guiding groove; 12. High-pressure spray head; 13. Temperature sensor; 14. Water guiding pipe; 15. Connecting pipe. Specific implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-3 , a device for improving the power generation amount of a distributed photovoltaic power generation system on a color steel roof, including a ground 2, above which a factory building 1 is installed, above which a plurality of photovoltaic power generation panels 9 are installed, a water pipeline 8 is laid between adjacent photovoltaic power generation panels 9, and a plurality of high-pressure spray heads 12 are installed on the water pipeline 8; the high-pressure spray heads 12 are communicated with the water pipeline 8, and the high-pressure spray heads 12 are evenly distributed along the outer surface of the water pipeline 8, a connecting pipe 15 is installed between adjacent water pipelines 8; adjacent two water pipelines 8 are communicated through the connecting pipe 15, a water guiding and sludge discharging device 10 is installed at the bottom of the photovoltaic power generation panel 9, a water pump 6 is installed on the left side of the factory building 1, the output end of the water pump 6 is installed with a water delivery pipe 7, and the output end of the water pump 6 is communicated with the water pipeline 8 through the water delivery pipe 7, water guiding grooves 11 are installed around the factory building 1, a water guiding pipe 14 is installed below the water guiding grooves 11, and a temperature sensor 13 is installed on the upper surface of the factory building 1; an underground water storage tank 3, which is opened inside the ground 2; the input end of the water pump 6 is detachably connected with the underground water storage tank 3; the water guiding grooves 11 are communicated with the underground water storage tank 3 through the water guiding pipe 14; a variable frequency water pump 5, which is installed in the upper part inside the underground water storage tank 3, and a liquid level sensor 4 is installed on the right side of the variable frequency water pump 5; by setting a spraying structure to cool the color steel roof, reducing the temperature rise loss of the photovoltaic module and improving the power generation amount of the photovoltaic power station; at the same time, automatically cleaning the photovoltaic module to ensure the cleaning effect and improve the power generation amount; and realizing the filtration and recycling of water resources to reduce the waste of water resources; and when a fire occurs on the roof, the spraying system can be automatically started to extinguish the fire and reduce the loss.

[0029] Working principle: When using the device for increasing the power generation of the distributed photovoltaic power generation system on the color steel roof, first, the temperature sensor 13 monitors the temperature of the color steel roof of the factory building 1 in real time. When the temperature sensor 13 detects that the temperature of the color steel roof of the factory building 1 reaches the preset value, the temperature sensor 13 feeds back the information to the controller. The controller controls the water pump 6 to work, pumping the water inside the underground reservoir 3 into the water pipeline 8, and then several high-pressure nozzles 12 spray the water onto the upper surface of the photovoltaic panel 9 to reduce the temperature of the color steel roof. At the same time, it can also clean the surface of the photovoltaic panel 9, cleaning the dust on the surface of the photovoltaic panel 9. Finally, the muddy water falls into the inside of the water guide groove 11 and is then discharged back into the inside of the underground reservoir 3 through the water pipe 14. The water guide and mud discharge device 10 installed at the lower part of the photovoltaic panel 9 is a prior art. It is a rectangular self-locking clip made of plastic and is a water guide and mud discharge device for photovoltaic modules. It consists of one part, and its side shape is similar to the letter C. It is a plastic fastener. Currently, it supports photovoltaic modules with aluminum frame thicknesses of 25 mm, 30 mm, 35 mm, 40 mm, and 45 mm. Its function is to timely guide the water and dust at the lower edge of the frame to overflow the frame during the accumulation of water, basically solving the problem of water and dust accumulation at the lower edge of the frame of the module during the water accumulation stage. Then, when the liquid level sensor 4 inside the underground reservoir 3 detects that the liquid level inside the underground reservoir 3 reaches the preset value, the liquid level sensor 4 feeds back the information to the controller, and the controller controls the frequency conversion water pump 5 to work to pump the excess water inside the underground reservoir 3 into the municipal drainage network. Secondly, the water pump 6 can also be manually controlled to work, so that the high-pressure nozzles 12 spray water onto the distributed photovoltaic panel 9 on the color steel roof to cool the color steel roof and clean the photovoltaic panel 9. Thirdly, when a fire occurs, the high-pressure nozzles 12 can also be manually controlled to spray water to play a fire extinguishing role. Fourthly, the underground reservoir 3 is arranged under the ground 2, and the underground reservoir 3 is provided with a firm lid to prevent ground personnel from falling into the water. The water depth is about 2 meters, which is convenient for the water to cool naturally. This is the working principle of the device for increasing the power generation of the distributed photovoltaic power generation system on the color steel roof.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for increasing the power generation of a distributed photovoltaic power generation system on a color steel roof, characterized in that: include: A ground (2), a factory building (1) is installed above the ground (2), a plurality of photovoltaic panels (9) are installed above the factory building (1), a water pipeline (8) is laid between adjacent photovoltaic panels (9), a plurality of high-pressure nozzles (12) are installed on the water pipeline (8), a connecting pipe (15) is installed between adjacent water pipelines (8), a water guide and mud discharger (10) is installed at the bottom of the photovoltaic panels (9), a water pump (6) is installed on the left side of the factory building (1), a water pipe (7) is installed at the output end of the water pump (6), a water guide groove (11) is installed around the factory building (1), a water guide pipe (14) is installed below the water guide groove (11), and a temperature sensor (13) is installed on the upper surface of the factory building (1); An underground water reservoir (3) is opened inside the ground (2).

2. The device for improving the power generation of the distributed photovoltaic power generation system on the color steel roof according to claim 1 is characterized in that: The high-pressure nozzles (12) are connected to the water pipeline (8), and the high-pressure nozzles (12) are evenly distributed along the outer surface of the water pipeline (8).

3. The device for improving the power generation of the distributed photovoltaic power generation system on the color steel roof according to claim 1 is characterized in that: The input end of the water pump (6) is detachably connected to the underground water reservoir (3), and the output end of the water pump (6) is connected to the water pipeline (8) via a water delivery pipe (7).

4. The device for improving the power generation of the distributed photovoltaic power generation system on the color steel roof according to claim 1 is characterized in that: Two adjacent water pipelines (8) are connected via a connecting pipe (15).

5. The device for improving the power generation of the distributed photovoltaic power generation system on the color steel roof according to claim 1 is characterized in that: The water guide groove (11) is connected to the underground water reservoir (3) via a water guide pipe (14).

6. The device for improving the power generation of the distributed photovoltaic power generation system on the color steel roof according to claim 1 is characterized in that: The underground water storage tank (3) is also provided with: A variable frequency water pump (5) is installed in the upper part of the underground water reservoir (3), and a liquid level sensor (4) is installed on the right side of the variable frequency water pump (5).

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