Self-cleaning photovoltaic support device

Abstract

The invention relates to the technical field of photovoltaic cleaning, and provides a self-cleaning type photovoltaic support device which comprises a supporting frame and a photovoltaic panel assembly located at the top of the supporting frame, a sedimentation tank is arranged at the bottom of the supporting frame, a water collecting tank is fixed to one end of the photovoltaic panel assembly, a spraying device is fixed to the other end of the photovoltaic panel assembly, and a water leakage opening is formed in the bottom of the water collecting tank. The water leakage port is communicated with the sedimentation tank through a water leakage channel, a water drainage port is formed above the sedimentation tank, the water drainage port is communicated with a water storage cabin through a circulating conveying device, and the water storage cabin is communicated with the spraying device. The photovoltaic panel cleaning device has the beneficial effects that a stored water source can be utilized, the photovoltaic panel can be automatically and circularly cleaned at regular time, a large amount of manpower and material resources are saved, and meanwhile waste of the water resource is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic cleaning, and in particular to a self-cleaning photovoltaic support device. Background Art

[0002] With the rapid development of the times, photovoltaic power generation, as a new type of clean energy, is being used more and more widely. After years of development, the application scope of photovoltaic power generation in my country has gradually expanded, from household solar energy to communications, as well as petroleum, ocean, meteorology and many other fields.

[0003] In the photovoltaic field, photovoltaic panels are generally installed on roofs, deserts, mountains and other places. Therefore, photovoltaic panels are often covered with dirt such as sand or dust, which affects the working efficiency and status of photovoltaic panels. Therefore, photovoltaic panels need to be cleaned frequently to ensure power generation efficiency. However, in many cases, due to geographical limitations, clean water has to be transported from far away by truck, which consumes a lot of manpower and material resources; especially in deserts and mountains, where water resources are already scarce, it will cause a lot of waste of water resources. Summary of the invention The present invention proposes a self-cleaning photovoltaic support device, which can utilize stored water to realize automatic circulation and regular cleaning of photovoltaic panels, thereby saving a large amount of manpower and material resources and avoiding the waste of water resources.

[0004] To this end, the technical solutions adopted are as follows: A self-cleaning photovoltaic support device comprises a support frame and a photovoltaic panel assembly located on the top of the support frame, wherein a sedimentation tank is provided at the bottom of the support frame, a water collecting trough is fixed at one end of the photovoltaic panel assembly, and a spray device is fixed at the other end, a water leakage port is provided at the bottom of the water collecting trough, and the water leakage port is connected to the sedimentation tank through a water leakage channel, a drain port is provided above the sedimentation tank, and the drain port is connected to a water storage tank through a circulating conveying device, and the water storage tank is connected to the spray device.

[0005] A further technical solution is that the water leakage port is a funnel-shaped structure and is located at one end of the water collecting trough, and the water collecting trough is tilted so that the position of the end where the water leakage port is located is lower than the other end.

[0006] A further technical solution is that guide grooves are fixed at both ends of the water collecting trough, and the guide grooves are respectively located on both sides of the photovoltaic panel assembly and are arranged along the length direction of the side of the photovoltaic panel assembly.

[0007] A further technical solution is that the support frame is an automatic tracking and adjusting support frame.

[0008] A further technical solution is that the circulating conveying device includes an automatic filter, the water inlet of the automatic filter is connected to the drain outlet of the sedimentation tank through a circulating pump, the water outlet of the automatic filter is connected to the water storage tank through a circulating pump, the automatic filter has a filter screen inside, and the bottom is connected to the sewage tank through a sewage valve.

[0009] A further technical solution is that the automatic filter also includes a cleaning device inside, the filter screen is a vertically arranged cylindrical structure, the cleaning device is located in the middle of the filter screen, and includes a driving device, a fixed block and a cleaning brush located around the fixed block, the cleaning brush is in contact with the filter screen, the driving device is located at the top of the automatic filter, and the fixed block is driven by the driving device to move up and down along the axis of the filter screen.

[0010] A further technical solution is that there are a plurality of cleaning brushes which are evenly arranged around the fixed block and fixed thereto, the bristles of the cleaning brushes are all turned outward to form a divergent structure, and the fixing point between the cleaning brush and the fixed block is inclined.

[0011] A further technical solution is that the sewage tank of the automatic filter is connected to the sedimentation tank through a suction pump.

[0012] A further technical solution is that the interior of the automatic filter also includes a filter cotton core, which is a vertically arranged rope-like structure, and its two ends are respectively fixed to the inner wall of the automatic filter, and the fixed block is a truncated cone structure, and its small diameter end is provided with a cleaning hole, and the large diameter end is fixed to the driving shaft of the driving device and is provided with a plurality of wire management holes, and the wire management holes are connected with the cleaning holes, and there are several filter cotton cores, each of which passes through a wire management hole and converges and exits at the cleaning hole.

[0013] A further technical solution is that both ends of the filter cotton core are fixed to the inside of the automatic filter by fixing plate 1 and fixing plate 2 respectively, the fixing plate 1 is located at the top of the automatic filter, and a conveying hole for the driving shaft to pass through is opened in the middle thereof, and the fixing plate 2 is located at the bottom of the automatic filter, and drainage holes are opened around it for dirt to fall.

[0014] The working principle and beneficial effects of this application are: 1. Through the entire bracket device, the photovoltaic panels can be automatically sprayed and cleaned, and then the cleaning water can be collected and recycled. Compared with traditional manual cleaning and cleaning by cleaning vehicles, it saves a lot of manpower, material resources and water resources. One-time water storage can achieve long-term automatic cleaning, which is particularly important for areas with inconvenient transportation of water sources. At the same time, it avoids damage to photovoltaic panels caused by improper operation during manual cleaning and avoids a large amount of water resources wasted during cleaning by cleaning vehicles.

[0015] 2. Automatic spray cleaning of photovoltaic panels can effectively clean the dust on the surface of photovoltaic panels, improve power generation efficiency, and at the same time has the advantages of extending the service life of photovoltaic panels.

[0016] 3. The water used for spraying is filtered and purified through the automatic filtering device to ensure that the water quality used for cleaning the photovoltaic panels meets the standards to ensure the cleanliness of the photovoltaic panels. The automatic filtering device can automatically clean the filter, and cooperate with the entire circulating spraying device. There is no need for frequent manual maintenance and cleaning, which also avoids the consumption of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the top view of the structure of this application; Figure 3 This is a schematic diagram of the top view of the water collection tank described in this application; Figure 4 This is a schematic diagram of the structure of the automatic filter described in this application; Figure 5 This is a schematic diagram of the internal structure of the automatic filter described in this application; Figure 6 This is a schematic diagram of the structure of the filter cotton core described in this application; Figure 7 This is a schematic diagram of the structure of the fixed block described in this application; Figure 8 This is a schematic diagram of the structure of the fixing plate 1 described in this application; Fig. 9 This is a schematic diagram of the structure of the fixing plate 2 described in this application.

[0019] In the figure: 100, support frame; 1, photovoltaic panel assembly; 2, sedimentation tank; 3, water collection tank; 4, spray device; 30, water leakage; 5, circulation conveying device; 6, water storage tank; 31, diversion trough; 51, automatic filter; 511, filter screen; 512, sewage tank; 52, cleaning device; 521, driving device; 522, fixing block; 523, cleaning brush; 53, filter cotton core; 5221, cleaning hole; 5222, wiring hole; 531, fixing plate one; 532, fixing plate two; 5311, conveying hole; 5321, sewage hole. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-Figure 9 As shown, a self-cleaning photovoltaic support device includes a support frame 100 and a photovoltaic panel assembly 1 located on the top of the support frame 100, the support frame 100 has a sedimentation tank 2 at the bottom, a water collecting tank 3 is fixed at one end of the photovoltaic panel assembly 1, and a spray device 4 is fixed at the other end, a water leakage port 30 is opened at the bottom of the water collecting tank 3, and the water leakage port 30 is connected with the sedimentation tank 2 through a water leakage channel, a drain port is opened above the sedimentation tank 2, and the drain port is connected with a water storage tank 6 through a circulating conveying device 5, and the water storage tank 6 is connected with the spray device 4.

[0022] During the use of photovoltaic panels, if the dirt on the photovoltaic panels is not cleaned, the dust and other dirt on the surface of the photovoltaic panels will block the sunlight, reduce the ability of the photovoltaic panel assembly 1 to absorb light, and cause the light to be unable to be effectively absorbed by the photovoltaic cells, further reducing the photoelectric conversion efficiency. In addition, after the dust absorbs sunlight on the surface of the photovoltaic panel assembly 1, it will be converted into heat energy. This heat will accumulate inside the photovoltaic panel assembly 1, causing the temperature of the assembly to rise. The photoelectric conversion efficiency of the photovoltaic panel assembly 1 is inversely proportional to the temperature. The higher the temperature, the lower the power generation efficiency, and even damage to the equipment will be caused, requiring more complex and comprehensive maintenance and repair work, which will undoubtedly increase the manpower, material and financial costs of maintenance.

[0023] The support frame 100 used in the present application is an automatic tracking and adjusting support, which can automatically adjust the position of the photovoltaic panel according to the angle of sunlight to ensure the best light receiving effect. When it is detected that the height of the water collection tank 3 is lower than the spraying device 4, the spraying work can be started. According to the different light in each area and the sedimentation time of the sedimentation tank 2, a fixed time period can be set for spraying. In the initial stage of use, the inside of the water storage tank 6 is full of water. With the continuous circulation of the spraying process, the water volume will gradually be lost, but this is a very long process and does not require manual frequent maintenance. In areas with rainy weather, rainwater will also be automatically collected to replenish the water storage tank 6.

[0024] During the spraying process, the spraying device 4 draws water from the water storage tank 6 and sprays it evenly on the surface of the photovoltaic panel. After cleaning the photovoltaic panel, the sprayed water flows into the water collection tank 3 by gravity, and then flows into the sedimentation tank 2 through the water leakage port 30 for sedimentation and purification. Finally, the purified water is sent back to the water storage tank 6 through the circulation conveying device 5, thereby realizing automatic cleaning of the photovoltaic panel. At the same time, the entire circulation system is easy to install, low in cost, and convenient for mass production.

[0025] The device can automatically spray and clean the photovoltaic panels, and then collect the cleaning water for recycling. Compared with traditional manual cleaning and cleaning by cleaning vehicles, it saves a lot of manpower, material resources and water resources. One-time water storage can achieve long-term automatic cleaning, which is particularly important for areas where water transportation is inconvenient due to inconvenient transportation. At the same time, it avoids damage to the photovoltaic panels caused by improper operation during manual cleaning, and avoids a large amount of water resources being wasted when cleaning by cleaning vehicles. In addition, the automatic spray cleaning of photovoltaic panels can effectively clean the dust on the surface of photovoltaic panels, improve power generation efficiency, and has the advantages of extending the service life of photovoltaic panels. In addition, this self-cleaning mode is not restricted by factors such as weather and time, and cleaning can be carried out at any time, which can ensure that the photovoltaic panels are always in a clean state and improve work efficiency.

[0026] like Figure 2-Figure 3 As shown, the leaking port 30 is a funnel-shaped structure, located at one end of the water collecting tank 3, and the water collecting tank 3 is tilted so that the end where the leaking port 30 is located is lower than the other end. In this way, it can be ensured that the water on the photovoltaic panel can smoothly enter the leaking port 30 after falling into the water collecting tank 3, and the funnel-shaped leaking port 30 facilitates the water to flow downward into the sedimentation tank 2. The two ends of the water collecting tank 3 are also fixed with guide grooves 31, which are respectively located on both sides of the photovoltaic panel assembly 1 and are arranged along the length direction of the side of the photovoltaic panel assembly 1. The function of the guide groove 31 is the same as that of the water collecting tank 3, and the purpose is to receive the water falling from the side of the photovoltaic panel, avoid the loss of water, and ensure the full recycling of water resources.

[0027] like Figure 1 and Figure 5As shown, the circulating conveying device 5 includes an automatic filter 51, the water inlet of the automatic filter 51 is connected to the drain outlet of the sedimentation tank 2 through a circulating pump, the water outlet of the automatic filter 51 is connected to the water storage tank 6 through a circulating pump, and the automatic filter 51 has a filter screen 511 inside. When the water after spraying is collected and enters the sedimentation tank 2, since the purification time of the sedimentation tank 2 is long and it cannot effectively precipitate lighter impurities such as leaves, the automatic filter 51 is added to the circulating conveying system, which can not only shorten the purification time, replenish the purified water to the water storage tank 6 in time, but also ensure the degree of water purification. The precipitated water enters the automatic filter 51 and is filtered and purified again by the filter screen 511, and the fallen dirt enters the sewage tank 512 through the sewage valve at the bottom. And the sewage tank 512 is connected to the sedimentation tank 2 through a suction pump, and the suction pump transports the sediment in the sewage tank 512 back to the sedimentation tank 2 for further separation and treatment, forming an efficient closed-loop system to maximize the utilization of water resources.

[0028] Since photovoltaic brackets are generally located in remote areas in the wild, the dust and impurities on their surfaces are all pure natural substances and do not contain chemical substances, so the sludge in the sedimentation tank 2 can be landfilled. The disposal method is simple and the processing capacity is large, so the use of sedimentation tank 2 further saves various costs. At the same time, the sludge can also be used for agricultural and forestry land, pastoral grassland, gardens and green land, etc., and the soil self-purification ability is used to treat the sludge harmlessly. The effective components of the sludge can improve the soil structure and promote plant growth.

[0029] like Figure 5 As shown, the automatic filter 51 also includes a cleaning device 52 inside, the filter screen 511 is a vertically arranged cylindrical structure, the cleaning device 52 is located in the middle of the filter screen 511, and includes a driving device 521, a fixed block 522 and a cleaning brush 523 located around the fixed block 522, the cleaning brush 523 is in contact with the filter screen 511, the driving device 521 is located at the top of the automatic filter 51, and the fixed block 522 is driven by the driving device 521 to move up and down along the axis of the filter screen 511. The driving device 521 can be a driving cylinder, and the output end of the cylinder drives the fixed block 522 to move up and down, thereby driving the cleaning brush 523 on the fixed block 522 to clean the filter screen 511, and scrape the dirt on the filter screen 511 to the bottom of the automatic filter 51, and after the internal water is filtered and the automatic filter valve is basically emptied, open the sewage valve to allow the sludge to fall into the sewage tank 512.

[0030] like Figure 6-Figure 7As shown, there are several cleaning brushes 523, which are uniformly surrounded and fixed to the fixed block 522. The bristles of the cleaning brushes 523 are all turned outward to form a divergent structure, and the fixing part of the cleaning brushes 523 and the fixed block 522 is inclined. The bristles arranged in this way can increase the contact area with the filter 511 and increase the cleaning range, so that a relatively small number of cleaning brushes 523 can be used to complete the cleaning work of a larger area, simplifying the overall structure. In addition, the bristles arranged in an inclined and divergent shape can maximize the spacing between two adjacent cleaning brushes 523. This arrangement can reduce the blockage of the bristles themselves on the mesh of the filter 511, and adapt to the cylindrical surface of the filter 511, improve the cleaning effect, generate greater friction, and thus more effectively remove dirt and impurities. At the same time, during the cleaning process, the inclined bristles help to bring the cleaned dirt into the sewage discharge compartment 512 at the bottom, which is convenient for the collection and discharge of dirt.

[0031] like Figure 6 As shown, the interior of the automatic filter 51 also includes a filter cotton core 53, which is a vertically arranged rope-like structure, and its two ends are respectively fixed to the inner wall of the automatic filter 51, and the fixed block 522 is a truncated cone structure, and its small diameter end is provided with a cleaning hole 5221, and the large diameter end is fixed to the driving shaft of the driving device 521 and is provided with a plurality of wire management holes 5222, and the wire management holes 5222 are connected with the cleaning holes 5221, and the filter cotton cores 53 have a plurality of wire management holes 5222 and respectively pass through a wire management hole 5222 and converge and pass out at the cleaning hole 5221.

[0032] The addition of the filter cotton core 53 enhances the purification ability of the automatic filter 51, and the filtering accuracy is higher, especially for the dust on the photovoltaic panel. The truncated cone design of the fixed block 522, and the cleaning hole 5221 at the small diameter end can compress and clean several filter cotton cores 53 gathered together, squeezing out the dirt therein, and the wire management hole 5222 at the large diameter end can ensure that each filter cotton core 53 has its own independent path, and the filter cotton cores 53 will not be entangled during the movement of the fixed block 522. In the process of driving the fixed block 522 to clean, the driving device 521 can simultaneously meet the cleaning of the filter net 511 and the filter cotton core 53, while improving the filtering function of the automatic filter 51, and ensuring the self-cleaning effect of the entire automatic filter 51.

[0033] like Figure 8 and Fig. 9As shown, both ends of the filter cotton core 53 are fixed to the inside of the automatic filter 51 through a fixing plate 1 531 and a fixing plate 2 532 respectively. The fixing plate 1 531 is located at the top of the automatic filter 51, and a conveying hole 5311 is provided in the middle thereof for the driving shaft to pass through. The upper end of the filter cotton core 53 is fixed to the outer ring of the fixing plate 1 531 to ensure that the driving shaft can work smoothly. The fixing plate 2 532 is located at the bottom of the automatic filter 51, and drain holes 5321 are provided around it for dirt to fall. The lower end of the filter cotton core 53 is centrally fixed to the middle part of the fixing plate 2 532, ensuring that the dirt scraped by the cleaning hole 5221 and the cleaning brush 523 can fall smoothly from the drain holes 5321 around it.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-cleaning photovoltaic support device, comprising a support frame (100) and a photovoltaic panel assembly (1) located on the top of the support frame (100), characterized in that: The support frame (100) has a sedimentation tank (2) at the bottom, a water collecting tank (3) is fixed at one end of the photovoltaic panel assembly (1), and a spray device (4) is fixed at the other end, a water leakage port (30) is provided at the bottom of the water collecting tank (3), and the water leakage port (30) is connected to the sedimentation tank (2) through a water leakage channel, and a drainage port is provided above the sedimentation tank (2), and the drainage port is connected to a water storage tank (6) through a circulating conveying device (5), and the water storage tank (6) is connected to the spray device (4).

2. A self-cleaning photovoltaic support device according to claim 1, characterized in that: The water leakage port (30) is a funnel-shaped structure and is located at one end of the water collecting tank (3). The water collecting tank (3) is arranged at an angle so that the position of the end where the water leakage port (30) is located is lower than the other end.

3. A self-cleaning photovoltaic support device according to claim 1, characterized in that: Both ends of the water collecting trough (3) are also fixed with guide grooves (31), and the guide grooves (31) are respectively located on both sides of the photovoltaic panel assembly (1) and are arranged along the length direction of the side of the photovoltaic panel assembly (1).

4. A self-cleaning photovoltaic support device according to claim 1, characterized in that: The support frame (100) is an automatic tracking and adjusting support frame.

5. A self-cleaning photovoltaic support device according to claim 1, characterized in that: The circulating conveying device (5) comprises an automatic filter (51), the water inlet of the automatic filter (51) being connected to the drain outlet of the sedimentation tank (2) via a circulating pump, the water outlet of the automatic filter (51) being connected to the water storage tank (6) via a circulating pump, the automatic filter (51) having a filter screen (511) inside, and the bottom thereof being connected to a sewage tank (512) via a sewage valve.

6. A self-cleaning photovoltaic support device according to claim 5, characterized in that: The automatic filter (51) further comprises a cleaning device (52) inside. The filter screen (511) is a vertically arranged cylindrical structure. The cleaning device (52) is located in the middle of the filter screen (511) and comprises a driving device (521), a fixed block (522) and a cleaning brush (523) located around the fixed block (522). The cleaning brush (523) is in contact with the filter screen (511). The driving device (521) is located at the top of the automatic filter (51), and the fixed block (522) is driven by the driving device (521) to move up and down along the axis of the filter screen (511).

7. A self-cleaning photovoltaic support device according to claim 5, characterized in that: There are a plurality of cleaning brushes (523) which are evenly arranged around the fixing block (522) and fixed thereto. The bristles of the cleaning brushes (523) are all turned outwards to form a divergent structure. The fixing point between the cleaning brushes (523) and the fixing block (522) is arranged at an angle.

8. A self-cleaning photovoltaic support device according to claim 5, characterized in that: The sewage discharge chamber (512) of the automatic filter (51) is connected to the sedimentation tank (2) via a suction pump.

9. A self-cleaning photovoltaic support device according to claim 6, characterized in that: The automatic filter (51) further comprises a filter cotton core (53) inside. The filter cotton core (53) is a vertically arranged rope-shaped structure, and its two ends are respectively fixed to the inner wall of the automatic filter (51). The fixing block (522) is a truncated cone-shaped structure, and its small diameter end is provided with a cleaning hole (5221), and its large diameter end is fixed to the driving shaft of the driving device (521) and is provided with a plurality of wire management holes (5222). The wire management holes (5222) are connected with the cleaning hole (5221). The filter cotton core (53) has a plurality of wire management holes (5222) and each of them passes through a wire management hole (5222) and converges and passes out at the cleaning hole (5221).

10. A self-cleaning photovoltaic support device according to claim 9, characterized in that: The two ends of the filter cotton core (53) are respectively fixed to the interior of the automatic filter (51) via a first fixing plate (531) and a second fixing plate (532); the first fixing plate (531) is located at the top of the automatic filter (51) and has a delivery hole (5311) in the middle thereof for the drive shaft to pass through; the second fixing plate (532) is located at the bottom of the automatic filter (51) and has drainage holes (5321) around it for dirt to fall through.

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