A dust removal device for a photovoltaic power station assembly

Abstract

The utility model relates to a kind of photovoltaic power station component dust removal device, photovoltaic solar panel group and dust removal device connected by multiple solar panels, the dust removal device includes the end support being set at the both ends of solar panel group and the crossbeam being slidably arranged between two end supports, the crossbeam bottom is equipped with cleaning mechanism, the end support can be lifted, to drive cleaning mechanism to be lifted to the above of solar panel, or be stored to the below of solar panel, the cleaning mechanism includes pressurized water spray frame, cleaning roller and water scraping frame, the pressurized water spray frame is equipped with two, respectively set in cleaning roller front and back two sides, and water scraping frame is set in last side.This dust removal device is through the innovative lifting storage structure and multi-process cleaning design, under the premise of low-cost investment, perfectly solve the efficiency low, cost high, easily shielded and other pain points existing in the prior art cleaning mode, provide a kind of efficient, safe, economic automatic cleaning solution for photovoltaic power station.

Description

Technical Field

[0001] This utility model relates to the field of dust removal device technology, specifically to a dust removal device for photovoltaic power station modules. Background Technology

[0002] In the global transition to clean energy, photovoltaic power generation is an important method, and its installed capacity is growing rapidly. The cleanliness of the photovoltaic panel surface is directly related to the power generation efficiency. When the surface is contaminated with dust, bird droppings, oil stains, and other pollutants, it can lead to a 15%-30% decrease in efficiency, and in severe cases, even more than 50%. It can also cause hot spot effects and damage the panel. Therefore, it is crucial to clean the photovoltaic panels regularly.

[0003] However, there are still many problems to be solved in the field of photovoltaic panel cleaning: In most scenarios, cleaning work still mainly relies on manual labor, which is not only labor-intensive and inefficient, but also difficult to meet the cleaning needs of large-scale power plants; Some photovoltaic power plants adopt solar panel designs with integrated cleaning devices, but these cleaning devices are usually fixed on top of the solar panels, and with the dynamic changes in the angle of sunlight, they are prone to forming shadows, which will reduce the power generation efficiency of the photovoltaic panels and contradict the original purpose of cleaning; Some large power plants have introduced electrostatic dust removal equipment to achieve automated cleaning, but such equipment has the disadvantages of high initial investment costs and high daily maintenance costs, and its dust removal effect will be greatly reduced in high humidity environments, and it is difficult to completely remove sticky stains such as bird droppings. Utility Model Content The purpose of this invention is to overcome the above-mentioned technical problems and provide a dust removal device for photovoltaic power station modules.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a dust removal device for photovoltaic power station components, comprising a photovoltaic solar panel assembly composed of multiple solar panels connected together and a dust removal device. The dust removal device includes end supports disposed at both ends of the solar panel assembly and a crossbeam slidably disposed between the two end supports. A cleaning mechanism is provided at the bottom of the crossbeam. The end supports are liftable, thereby driving the cleaning mechanism to be raised above the solar panel or lowered below the solar panel. The cleaning mechanism includes a pressurized water spray frame, a cleaning roller, and a scraper frame. Two pressurized water spray frames are provided, respectively disposed on the front and rear sides of the cleaning roller, and the scraper frame is disposed on the rear side.

[0005] Furthermore, the end support includes an inverted T-shaped base frame and an inclined top frame. The vertical part of the base frame adopts an electric telescopic rod, and the top frame is fixedly installed at its telescopic end. The length of the top frame is greater than the length of the solar panel, and its tilt angle is the same as the tilt angle of the solar panel.

[0006] Furthermore, the two top frames have opening slots on their adjacent sides, and threaded rods are rotatably mounted inside these opening slots. Both ends of the crossbeam are located within the two opening slots and are threadedly engaged with the threaded rods. A drive motor for rotating the threaded rods is located at the end of each top frame. It is worth noting that the two drive motors start and stop synchronously.

[0007] Furthermore, a sewage tank is fixed to the lower end of the top frame, and a drain pipe is provided at the bottom of the sewage tank.

[0008] Furthermore, the rear end of the crossbeam is provided with multiple through holes, and the top of the wiper frame is provided with multiple limiting rods. The limiting rods are slidably disposed in the through holes, and a return spring is also sleeved on the limiting rod. The two ends of the return spring are respectively fixedly connected to the wiper frame and the crossbeam. A limiting block is fixedly provided at the top of the limiting rod, and an electromagnet is provided at the top of the crossbeam. The limiting block is made of magnetic material.

[0009] Furthermore, limit switch one and limit switch two are respectively provided at the top and bottom ends of the opening slot. Limit switch one is used to control the electromagnet to be energized, and limit switch two is used to control the electromagnet to be de-energized.

[0010] The beneficial effects of this utility model are: 1. With the design of the liftable end bracket, the dust removal device can be completely stored under the solar panel when not in operation, which completely avoids the loss of power generation efficiency caused by the blocking of sunlight by traditional fixed cleaning devices; and when cleaning is being carried out, the cleaning mechanism can be raised to the surface of the solar panel by means of the electric telescopic rod.

[0011] 2. The cleaning mechanism adopts a combination design of "dual pressurized water spray frame + cleaning roller + squeegee frame", forming a complete cleaning closed loop: the front pressurized water spray can pre-soften sticky stains such as dust and bird droppings, and the mechanical wiping of the middle cleaning roller can achieve deep cleaning. The rear pressurized water spray further rinses away residual impurities, and finally the squeegee frame quickly removes surface moisture, effectively preventing water stains and secondary pollution. This multi-process collaborative cleaning mode can maintain a stable cleaning ability even for stubborn stains in high humidity environments, which is significantly better than traditional electrostatic dust removal equipment.

[0012] 3. The device drives the crossbeam to move through a threaded rod, and combined with the lifting control of the electric telescopic rod, it realizes the automated operation from cleaning start-up to storage reset, effectively saving labor.

[0013] 4. The wastewater tank at the end of the top frame can collect the wastewater generated during the cleaning process and treat it through the drainage pipe to avoid secondary pollution caused by the random flow of wastewater. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a dust removal device for photovoltaic power station modules according to this utility model; Figure 2 This is a top view of a dust removal device for photovoltaic power station modules according to this utility model; Figure 3 This utility model relates to a dust removal device for photovoltaic power station modules. Figure 2 Schematic diagram of the longitudinal section structure in the AA direction; Figure 4 yes Figure 3 Enlarged view of section A; Figure 5 yes Figure 3 Enlarged view of section B; Figure 6 This is a schematic diagram of the crossbeam structure in a dust removal device for photovoltaic power station modules according to this utility model.

[0015] 1. Solar panel assembly; 2. Dust removal device; 3. End bracket; 4. Crossbeam; 5. Cleaning mechanism; 6. Electromagnet; 7. Pressurized water spray frame; 8. Cleaning roller; 9. Squeegee frame; 10. Base frame; 11. Top frame; 12. Opening slot; 13. Threaded rod; 14. Drive motor; 15. Wastewater tank; 16. Drain pipe; 17. Through hole; 18. Limit rod; 19. Limit block; 20. Return spring; 21. Limit switch one; 22. Limit switch two. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0017] Embodiments of this utility model: such as Figure 1-6 As shown, a dust removal device for photovoltaic power station components includes a photovoltaic solar panel assembly 1 composed of multiple solar panels connected together and a dust removal device 2. The dust removal device 2 includes end supports 3 set at both ends of the solar panel assembly 1 and a crossbeam 4 slidably set between the two end supports 3. A cleaning mechanism 5 is provided at the bottom of the crossbeam 4. The end supports 3 can be raised and lowered, thereby driving the cleaning mechanism 5 to be raised above the solar panel or lowered below the solar panel. The cleaning mechanism 5 includes a pressurized water spray frame 7, a cleaning roller 8 and a scraper frame 9. There are two pressurized water spray frames 7, which are respectively set on the front and rear sides of the cleaning roller 8, and the scraper frame 9 is set on the rear side.

[0018] It is worth noting that: the top of the crossbeam 4 is equipped with a water inlet, which is connected to the pressurized spray frame 7, and a water pipe is connected to the water inlet, which in turn connects to a booster water pump to provide pressurized water flow; the crossbeam 4 is equipped with a small drive motor for driving the cleaning roller 8 to rotate; to avoid deformation of the shaft during rotation due to the excessive axial length of the cleaning roller 8, a multi-segment cleaning roller 8 design can be adopted: the length of a single segment of the cleaning roller 8 is set to match the width of the solar panel, and one or two segments of the cleaning roller 8 are driven by a small drive motor. The output shaft of the small drive motor is directly installed and connected to the shaft of the cleaning roller 8 or connected through gear transmission or belt transmission (this transmission structure is a common transmission structure, so it is not shown in the figure); this design can reduce the risk of deformation of the shaft due to the excessive length-to-diameter ratio by shortening the length of a single segment of the cleaning roller 8, ensuring the stable rotation of the roller during cleaning; and by reasonably matching the number of small drive motors and cleaning rollers 8, it can simplify the transmission structure while ensuring driving efficiency, facilitate the installation and maintenance of the equipment, and further improve the overall reliability of the cleaning device. Through the above structure, the lifting and lowering of the end bracket 3 can drive the cleaning mechanism 5 to rise or fall, thereby realizing the cleaning function and storage function, and preventing the cleaning mechanism 5 from blocking sunlight and affecting the power generation efficiency of the solar panel; the pressurized water spray rack 7 is set on the front and rear sides of the cleaning roller 8. The pressurized water spray rack 7 on the front side sprays water to wash away most of the dust on the surface of the solar panel and soften bird droppings and other stubborn stains. Then the cleaning roller 8 is used for brushing, and the pressurized water spray rack 7 on the rear side sprays water to rinse away the residue, thereby ensuring the cleaning effect.

[0019] like Figure 1 , 3 As shown, the end support 3 includes a base frame 10 with an inverted T-shaped structure and a top frame 11 with an incline. The vertical part of the base frame 10 adopts an electric telescopic rod, and the top frame 11 is fixedly installed at its telescopic end. The length of the top frame 11 is greater than the length of the solar panel, and its tilt angle is the same as the tilt angle of the solar panel.

[0020] It is worth noting that the two electric telescopic poles start and stop synchronously.

[0021] like Figure 1 , 3 As shown, the two top frames 11 are provided with an opening slot 12 on one side that is close to each other, and a threaded rod 13 is rotatably provided inside the opening slot 12. The two ends of the crossbeam 4 are located in the two opening slots 12 and are threadedly engaged with the threaded rod 13. The top frame 11 is provided with a drive motor 14 for driving the threaded rod 13 to rotate.

[0022] It is worth noting that the two drive motors 14 start and stop synchronously.

[0023] With the above structure, the cleaning mechanism 5 is raised and lowered by the electric telescopic rod, and the crossbeam 4 is moved back and forth by the threaded rod 13 to achieve cleaning and dust removal. Compared with large electrostatic dust removal equipment, this device has a simple structure and strong component versatility. Not only is the initial investment cost lower, but daily maintenance only requires inspection of vulnerable parts such as the water spray frame and cleaning roller, which greatly reduces long-term operating costs. The top frame of the end bracket adopts the same tilt angle design as the solar panel to ensure that when the crossbeam drives the cleaning mechanism 5 to move horizontally, each cleaning component is always in close contact with the surface of the photovoltaic panel, avoiding cleaning dead corners caused by excessive gaps. The synchronous control design of the electric telescopic rod and the drive motor ensures that the crossbeam is evenly stressed at both ends and runs smoothly without jamming.

[0024] like Figure 3 As shown, a sewage tank 15 is fixed to the lower end of the top frame 11, and a drain pipe 16 is provided at the bottom of the sewage tank 15.

[0025] With the above structure, the wastewater tank 15 is used to collect the wastewater generated during cleaning, and it is discharged to the ground through the drain pipe 16 or collected, purified, and reused. This allows for centralized collection of wastewater generated during the cleaning process and unified treatment through the drain pipe, preventing secondary pollution caused by indiscriminate wastewater flow. After cleaning the solar panels, the cleaning mechanism 5 moves above the wastewater tank 15, and then the end bracket is lowered for storage.

[0026] like Figure 4 , 6 As shown, the rear end of the crossbeam 4 is provided with multiple through holes 17, and the top of the wiper frame 9 is provided with multiple limiting rods 18. The limiting rods 18 are slidably disposed in the through holes 17. A return spring 20 is also sleeved on the limiting rod 18. The two ends of the return spring 20 are fixedly connected to the wiper frame 9 and the crossbeam 4 respectively. A limiting block 19 is fixedly provided at the top of the limiting rod 18. An electromagnet 6 is provided at the top of the crossbeam 4, and the limiting block 19 is made of magnetic material.

[0027] like Figure 1 , 5 As shown, limit switch 1 21 and limit switch 2 22 are respectively provided at the top and bottom ends of the top of the opening slot 12. Limit switch 1 21 is used to control the electromagnet 6 to be energized, and limit switch 2 22 is used to control the electromagnet 6 to be de-energized.

[0028] With the above structure, after the cleaning mechanism 5 rises along the inclined surface of the solar panel for initial cleaning, the crossbeam 4 contacts the limit switch 21, the electromagnet 6 is energized, and the squeegee 9 is driven to descend and contact the solar panel. Further cleaning is carried out as the cleaning mechanism 5 descends along the inclined surface of the solar panel. At the same time, the squeegee 9 on the rear side scrapes away the water remaining on the solar panel. The water flows down the solar panel and can enter the sewage tank 15 for discharge, thus avoiding water stains from affecting the power generation efficiency of the solar panel.

[0029] In practical use, before cleaning, the end bracket drives the cleaning mechanism 5 to rise. When it reaches the top, the rear end of the sewage tank 15 abuts against the bottom surface of the solar panel. The cleaning mechanism 5 moves above the solar panel, and the drive motor 14 drives the crossbeam 4 to move, causing the cleaning mechanism 5 to move along the solar panel. The small drive motor on the cleaning mechanism 5 drives the cleaning roller 8 to rotate, and the booster water pump supplies water to the pressurized spray frame 7 to clean the solar panel. When the crossbeam 4 moves to the upper end of the opening slot 12, it contacts the limit switch 21, and the electromagnet 6 is energized, causing the scraper frame 9 to move down and contact the solar panel. Simultaneously, the threaded rod 13 rotates in the opposite direction, causing the crossbeam 4 (cleaning mechanism 5) to move downwards for further cleaning. The squeegee 9 on the rear side scrapes away the residual water on the solar panel to prevent water stains from forming. When the cleaning mechanism 5 moves downwards away from the solar panel, the cleaning is completed. At the same time, the limit switch 21 of the crossbeam 4 is released, the electromagnet 6 is de-energized, and the squeegee 9 rises away from the solar panel under the action of the return spring 20. The cleaning mechanism 5 can be moved back and forth to perform multiple cleanings depending on the degree of stain removal. After cleaning, the electric telescopic rod retracts, causing the cleaning mechanism 5 to move downwards for retraction and extension, preventing it from blocking sunlight.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A dust removal device for photovoltaic power station modules, comprising a photovoltaic solar panel assembly (1) composed of multiple connected solar panels and a dust removal device (2), characterized in that: The dust removal device (2) includes end brackets (3) set at both ends of the solar panel group (1) and a crossbeam (4) slidably set between the two end brackets (3). The bottom of the crossbeam (4) is provided with a cleaning mechanism (5). The end brackets (3) can be raised and lowered, thereby driving the cleaning mechanism (5) to be raised above the solar panel or lowered below the solar panel. The cleaning mechanism (5) includes a pressurized water spray frame (7), a cleaning roller (8) and a scraper frame (9). There are two pressurized water spray frames (7), which are respectively set on the front and rear sides of the cleaning roller (8), and the scraper frame (9) is set on the rear side.

2. The dust removal device for photovoltaic power station modules according to claim 1, characterized in that: The end support (3) includes a base frame (10) with an inverted T-shaped structure and a top frame (11) with an incline. The vertical part of the base frame (10) is equipped with an electric telescopic rod. The top frame (11) is fixedly installed at its telescopic end. The length of the top frame (11) is greater than the length of the solar panel, and its tilt angle is the same as that of the solar panel.

3. The dust removal device for photovoltaic power station modules according to claim 2, characterized in that: Two top frames (11) are provided with an opening slot (12) on one side that is close to each other, and a threaded rod (13) is rotatably provided inside the opening slot (12). The two ends of the crossbeam (4) are located in the two opening slots (12) and are threadedly engaged with the threaded rod (13). The top frame (11) is provided with a drive motor (14) for driving the threaded rod (13) to rotate.

4. A dust removal device for photovoltaic power station modules according to claim 2, characterized in that: The lower end of the top frame (11) is fixed with a sewage tank (15), and a drain pipe (16) is provided at the bottom of the sewage tank (15).

5. A dust removal device for photovoltaic power station modules according to claim 3, characterized in that: The crossbeam (4) has multiple through holes (17) at its rear end, and the wiper frame (9) has multiple limiting rods (18) at its top. The limiting rods (18) are slidably disposed in the through holes (17). A return spring (20) is also sleeved on the limiting rod (18). The two ends of the return spring (20) are fixedly connected to the wiper frame (9) and the crossbeam (4) respectively. A limiting block (19) is fixedly disposed at the top of the limiting rod (18). An electromagnet (6) is disposed at the top of the crossbeam (4), and the limiting block (19) is made of magnetic material.

6. A dust removal device for photovoltaic power station modules according to claim 5, characterized in that: The top and bottom ends of the opening slot (12) are respectively provided with limit switch one (21) and limit switch two (22). Limit switch one (21) is used to control the electromagnet (6) to be energized, and limit switch two (22) is used to control the electromagnet (6) to be de-energized.

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