Photovoltaic desertification control device and desertification control method

Abstract

The invention relates to the technical field of desertification control, in particular to a photovoltaic desertification control device and method. The photovoltaic desertification control device comprises an irrigation part, a flow guide unit, a water flow direction adjusting part and a driving unit. According to the device, sewage generated in the cleaning process is guided into the drainage channel through the flow guide unit, rotary irrigation spraying is conducted through the spraying head, and therefore water resources in the photovoltaic panel cleaning process are reasonably utilized again, the photovoltaic desertification control cost is reduced, and in a small amount of rainfall weather, the photovoltaic desertification control efficiency is improved. Rainwater flowing downwards along the plate surface of the photovoltaic plate is collected through the flow guide unit and collected into the water storage tank to serve as water needed for follow-up photovoltaic plate cleaning and plant irrigation, the utilization rate of water resources is increased, resource investment in the photovoltaic desertification control process is reduced, and photovoltaic desertification control is reasonably carried out.

Description

Technical Field

[0001] The invention relates to the technical field of sand control, and in particular to a photovoltaic sand control device and a sand control method. Background Art

[0002] Photovoltaic sand control is an innovative model that combines solar photovoltaic power generation with desert control. It aims to improve the local ecological environment by utilizing the abundant solar energy resources in the desert (arid desert areas and semi-arid desert areas) to generate electricity. That is, by shielding the photovoltaic panels, the wind and sand erosion of the land under the photovoltaic panels and the evaporation rate of water in the land are reduced. In some projects, drought-resistant plants will be planted under the photovoltaic panels, and the plants will be irrigated regularly to further improve the effect of sand control.

[0003] Since photovoltaic panels are in a desert environment for a long time, a large amount of sand and dust particles and other pollutants remain on their surface. These substances will affect the normal power generation operation of the photovoltaic panels and reduce the power generation effect. Severe hot spot effects may occur due to the accumulation of substances, causing overheating in some areas. Therefore, photovoltaic panels need to be cleaned or washed regularly to remove the attachments and sand and dust particles on their surface.

[0004] At present, there are mainly several ways to clean photovoltaic panels, including manually using cleaning tools (such as soft brushes, etc.), flushing photovoltaic panels with cleaning vehicles, and cleaning with existing automated photovoltaic cleaning robots. The above photovoltaic sand control process has the following problems: although the photovoltaic panels are cleaned, the sewage generated during the cleaning process will flow down along the surface of the photovoltaic panels and eventually fall under the photovoltaic panels, resulting in a waste of water resources. Summary of the invention

[0005] Based on this, it is necessary to provide a photovoltaic sand control device and a sand control method, aiming to solve the problems of the above-mentioned prior art.

[0006] The present application provides a photovoltaic sand control device, which is installed on a photovoltaic bracket and cooperates with an existing cleaning process, including: an irrigation part, the photovoltaic bracket is equipped with an irrigation part, the irrigation part is located directly below the photovoltaic panel, the irrigation part includes an irrigation support plate, a rotating cylinder and a spray head, the irrigation support plate is welded and installed on the photovoltaic bracket by a fixed bracket, a drainage channel is opened inside the irrigation support plate, a plurality of rotating cylinders equidistantly arranged along the length direction and with vertical axes are rotatably arranged on the lower end surface of the irrigation support plate, a spray head is fixedly arranged on the lower end of the rotating cylinder, the spray head, the rotating cylinder and the drainage channel are interconnected, a diversion unit is arranged on the irrigation support plate to divert sewage generated in the photovoltaic panel cleaning process into the irrigation support plate, and a driving unit for driving the irrigation part for irrigation and for causing the diversion unit to guide the generated sewage and rainwater is provided on the photovoltaic bracket.

[0007] The guide unit includes a water guide frame, an outer water guide frame and an inner water guide frame. The inclined lower end of the photovoltaic panel is snap-fitted with a water guide frame located on the corresponding irrigation support plate. A U-shaped water guide sheet is fixedly installed on the front side of the water guide frame. Water guide strips are arranged on both left and right end surfaces of the water guide frame. An outer water guide frame for guiding water flow to the drainage channel is fixedly arranged on the front upper end of the irrigation support plate. A water flow adjustment part is arranged in front of the upper end of the irrigation support plate for sliding back and forth. The water flow adjustment part includes a movable seat and an inner water guide frame fixed on the movable seat. The movable seat is connected to the water tank through a water storage pipe, and the rear side of the irrigation support plate is connected to the water tank through an outlet pipe.

[0008] According to a favorable embodiment, a water collecting trough is opened in the movable seat, and the water collecting trough is composed of a square section and an inverted frustum section from top to bottom. The square section of the water collecting trough runs through the front end surface of the movable seat, and the water inlet of the water storage pipe is located at the center of the frustum section of the water collecting trough.

[0009] According to a favorable embodiment, the two water guide bars on the same water guide frame are symmetrical, the water guide bars are inclined forward from left to right, and a buckle is fixedly provided at one end of the water guide bar away from the corresponding water guide frame.

[0010] According to a favorable embodiment, the water diversion frame is snap-fitted to the lower end of the photovoltaic panel, the upper end surface of the irrigation support plate is provided with a water collecting trough which is connected and cooperates with the opening at the lower end of the external water diversion frame, the spray head is in the shape of an inverted frustum, and the circumferential surface and the lower end surface of the spray head are penetrated by spray holes.

[0011] According to a favorable embodiment, the driving unit includes a rope storage box, and two rope storage boxes distributed front and back are fixedly installed on the lower end surface of the irrigation support plate. A winding shaft with a vertical axis and located in the corresponding rope storage box is rotatably arranged on the lower end surface of the irrigation support plate, a main rope is wound on the rear winding shaft, and an auxiliary rope is wound on the front winding shaft. The free end of the auxiliary rope passes through the outer water diversion frame and is fixedly connected to the inner water diversion frame. The movable seat is connected to the main rope by a traction rope, and a vortex spring is fixedly arranged on the winding shaft and the rotating cylinder between the irrigation support plate.

[0012] According to a favorable embodiment, the driving unit also includes a mounting frame, and a mounting frame is provided between two adjacent photovoltaic panels. The mounting frame is installed on the photovoltaic bracket by bracket welding and is flush with the photovoltaic panel. A pull rope plate that slides along its length direction is provided between all mounting frames in the same area through an electric slider 1, and a driving seat is provided on the pull rope plate that slides left and right through an electric slider 2, and a cleaning device is plugged into and installed on the driving seat.

[0013] According to a favorable embodiment, a plug-in groove is provided on the rear side of the driving seat, a plug-in block is fixedly provided on the free end of the main rope, a limit rod is fixedly provided on all mounting frames, a limit block corresponding to the irrigation support plate is welded and installed on the limit rod, the limit block is U-shaped, and directional pins are welded and installed on the two vertical sections of the limit block toward the end surface of the driving seat, and a directional groove corresponding to the directional pin is provided on the plug-in block.

[0014] According to a favorable embodiment, a primary filter is fixedly installed in the water collection tank, a secondary filter corresponding to the rotating cylinder is inlaid and installed at the bottom of the drainage channel, the secondary filter is located above the rotating cylinder, and a sliding block that slides back and forth and penetrates into the drainage channel is fixedly installed on the upper end surface of the irrigation support plate, and a cleaning plate for cleaning the secondary filter is fixedly installed on the lower end surface of the sliding block.

[0015] According to a favorable embodiment, a plurality of cleaning openings connected to the drainage channel are provided on the left end surface of the irrigation support plate, and a sealing plate for sealing the cleaning openings is provided on the irrigation support plate for sliding back and forth.

[0016] In summary, the present invention includes at least one of the following beneficial effects: First, in the present invention, the sewage generated during the cleaning process is diverted into the drainage channel through the diversion unit, and the rotating irrigation spray is performed through the sprinkler head, thereby rationally utilizing the water resources in the process of cleaning the photovoltaic panels and reducing the cost of photovoltaic sand control. Secondly, in rare rainy weather, the rainwater flowing down along the photovoltaic panel surface is collected by the diversion unit and collected into the water storage tank, which serves as the water for subsequent cleaning of the photovoltaic panels and irrigation of plants, thereby improving the utilization rate of water resources, reducing the resource input in the process of photovoltaic sand control, and rationally carrying out photovoltaic sand control.

[0017] 2. In the present invention, the rotating drum drives the sprinkler head to rotate synchronously through the driving unit. The centrifugal force generated by the rotation causes the irrigation water to be sprayed out from the sprinkler hole while spreading circumferentially with the sprinkler head as the center, thereby expanding the area that can be sprayed by a single sprinkler head, improving the utilization rate of water resources during irrigation, enhancing the irrigation effect, and ensuring the water demand of plants under the photovoltaic panels.

[0018] 3. In the present invention, the outer water diversion frame and the inner water diversion frame are controlled to enter the water diversion link respectively through the water flow adjustment part, so that adjustment can be performed in the two processes of collecting rainwater and storing water and irrigation, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a photovoltaic sand control device provided according to an embodiment of the present invention is shown.

[0021] Figure 2 A partial first-view structural schematic diagram of a photovoltaic sand control device provided according to an embodiment of the present invention is shown.

[0022] Figure 3 A partial second-view structural schematic diagram of a photovoltaic sand control device provided according to an embodiment of the present invention is shown.

[0023] Figure 4 A schematic diagram of the three-dimensional structure among the irrigation support plate, the water storage tank and the water guide strip provided according to an embodiment of the present invention is shown.

[0024] Figure 5 A schematic diagram of the three-dimensional structure among a water guide frame, a water guide bar and a buckle provided according to an embodiment of the present invention is shown.

[0025] Figure 6 A partial cross-sectional view between an outer water diversion frame, an inner water diversion frame and an irrigation support plate provided according to an embodiment of the present invention is shown.

[0026] Figure 7 A schematic diagram of the three-dimensional structure among a driving seat, a plug-in block and a limiting block provided according to an embodiment of the present invention is shown.

[0027] Figure 8 A partial cross-sectional view between an outer water diversion frame, a primary filter screen and a secondary filter screen provided according to an embodiment of the present invention is shown.

[0028] Fig. 9 A partial cross-sectional view of an irrigation support plate, a rope storage box and a winding shaft provided in accordance with an embodiment of the present invention is shown in a left-side perspective.

[0029] The above drawings include the following reference numerals: 1. photovoltaic support; 2. irrigation part; 20. irrigation support plate; 200. rotating cylinder; 201. sprinkler head; 202. sprinkler hole; 3. flow guide unit; 30. water guide frame; 300. water guide sheet; 301. water guide strip; 302. buckle; 303. external water guide frame; 31. water flow adjustment part; 310. internal water guide frame; 311. water storage pipe; 312. water outlet pipe; 313. water storage tank; 314. mobile seat; 315. Water collecting trough; 4, driving unit; 40, rope storage box; 41, winding shaft; 42, scroll spring; 43, main rope; 44, auxiliary rope; 440, traction rope; 45, guide wheel; 46, mounting frame; 47, rope pulling plate; 470, driving seat; 48, plug-in block; 480, plug-in slot; 481, directional slot; 482, directional latch; 49, limit block; 490, limit rod; 5, primary filter; 50, secondary filter; 51, cleaning plate; 52, cleaning port; 53, sealing plate. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a photovoltaic sand control device is installed on a photovoltaic bracket 1 and cooperates with the existing cleaning process, including: an irrigation part 2, the photovoltaic bracket 1 is equipped with the irrigation part 2, the irrigation part 2 is located directly below the photovoltaic panel, the irrigation part 2 includes an irrigation support plate 20, a rotating drum 200 and a spray head 201, the irrigation support plate 20 is welded and installed on the photovoltaic bracket 1 by a fixed bracket, a drainage channel is opened inside the irrigation support plate 20, and the lower end surface of the irrigation support plate 20 is rotatably provided with a plurality of rotating drums 200 arranged equidistantly along its length direction and with vertical axes, a spray head 201 is fixedly provided at the lower end of the rotating drum 200, and the spray head 201, the rotating drum 200 and the drainage channel are connected to each other, the irrigation support plate 20 is provided with a diversion unit 3 for diverting the sewage generated in the photovoltaic panel cleaning process to the irrigation support plate 20, and the photovoltaic bracket 1 is provided with a driving unit 4 for driving the irrigation part 2 to irrigate and allowing the diversion unit 3 to guide the generated sewage and rainwater.

[0032] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the guide unit 3 includes a water guide frame 30 and an external water guide frame 303. The lower end of the photovoltaic panel is snap-fitted with the water guide frame 30 located above the corresponding irrigation support plate 20. A U-shaped water guide sheet 300 is fixedly installed on the front side of the water guide frame 30. Water guide strips 301 are provided on both the left and right end surfaces of the water guide frame 30. An external water guide frame 303 for guiding water flow to the drainage channel is fixedly provided on the upper end of the front side of the irrigation support plate 20. There will be a short rainy season in some local desert areas. In order to collect rainwater in the short rainy season, a water flow adjustment part 31 is provided on the upper end face of the irrigation support plate 20 for sliding back and forth. The water flow adjustment part 31 includes a movable seat 314 and an inner water guide frame 310 fixed on the movable seat 314. The movable seat 314 is connected to the water tank 313 through a water storage pipe 311. The water storage pipe 311 is a flexible pipe. The rear side of the irrigation support plate 20 is connected to the water tank 313 through a water outlet pipe 312.

[0033] The water flow adjustment part 31 is used to adjust the direction in which the rainwater or sewage from the photovoltaic panel finally flows. When precipitation occurs in the area, the inner water diversion frame 310 is put into the water diversion link through the control of the driving unit 4, and the rainwater flows down from the photovoltaic panel and is guided by the water guide frame 30 and the water guide strip 301, so that the rainwater flows through the inner water diversion frame 310 to the movable seat 314, and flows into the water storage tank 313 through the water storage pipe 311. When the photovoltaic panel needs to be cleaned, the driving unit 4 drives the existing external cleaning equipment and pulls the movable seat 314, so that the inner water diversion frame 310 exits the water diversion link, and the outer water diversion frame 303 is put into the water diversion link. At this time, the water diversion frame 303 is set in the water storage tank 31 The external water pump on 3 works to pump the water in the water tank 313 out to the cleaning equipment, and the cleaning equipment cleans from top to bottom and along the length direction of the photovoltaic panel. The sewage generated during the cleaning process flows from the surface of the photovoltaic panel to the bottom, and is also guided by the water guide frame 30 and the water guide bar 301, so that the sewage continues to flow downward from the middle position on the photovoltaic panel into the external water guide frame 303, and enters the irrigation support plate 20 from the external water guide frame 303, and finally flows out through the sprinkler head 201. At the same time, the driving unit 4 drives the rotating drum 200 to rotate the sprinkler head 201, and the centrifugal force generated by the rotation causes the sewage to be evenly irrigated to the plants planted below the photovoltaic panel.

[0034] When the photovoltaic panels do not need to be cleaned but the plants need to be irrigated, the water in the water tank 313 is pumped out through the external water pump and pumped into the drainage channel on the irrigation support plate 20 through the outlet pipe 312, and the driving unit 4 works to repeat the rotation irrigation process of the sprinkler head 201.

[0035] In summary, it is necessary to reasonably collect available water resources and reuse the cleaning water when cleaning photovoltaic panels, so as to improve the utilization rate of water resources, reduce resource input in the process of photovoltaic sand control, and reasonably carry out photovoltaic sand control.

[0036] like Figure 6 As shown, a water collecting tank 315 is provided in the movable seat 314, and the water collecting tank 315 is composed of a square section and an inverted truncated cone section from top to bottom. The square section of the water collecting tank 315 runs through the front end surface of the movable seat 314, and the water inlet of the water storage pipe 311 is located at the center of the truncated cone section of the water collecting tank 315.

[0037] After the water flow is guided by the water guide frame 30 and the water guide strip 301 and flows to the inner water guide frame 310 , the water flow is guided by the frustum section of the water collecting trough 315 to enter the water storage pipe 311 through the water inlet.

[0038] like Figure 5 As shown, the two water guide bars 301 on the same water guide frame 30 are symmetrical. The water guide bar 301 on the left is taken as an example for explanation. The water guide bar 301 tilts forward from left to right, and a buckle 302 is fixedly provided at one end of the water guide bar 301 away from the corresponding water guide frame 30.

[0039] The water guide frame 30 and the water guide strip 301 are detachable and both are plastic parts. The water guide frame 30 is provided with a snap-on buckle for easy later maintenance and replacement. When installing the water guide frame 30 and the water guide strip 301, first snap the water guide frame 30 into one end of the lower side of the photovoltaic panel, see Figure 5 , and then the buckles 302 on both sides are inserted into the left and right sides of the corresponding photovoltaic panels, so that the water guide strip 301 is finally close to the upper end of the photovoltaic panel. Therefore, when the water flows from top to bottom along the surface of the photovoltaic panel to the inclined lower end of the photovoltaic panel, the water flow is guided to flow to the corresponding water guide frame 30 through the inclined surfaces of the two corresponding water guide strips 301, and finally flows out from the frame opening in the water guide frame 30, and under the guidance of the water guide sheet 300 again, the water flow can flow along the inner side of the U-shaped area of ​​the water guide sheet 300 to the outer water guide frame 303 or the inner water guide frame 310.

[0040] like Figure 8 As shown, the water guide frame 30 is snap-fitted and installed to the lower end of the photovoltaic panel, and the upper end surface of the irrigation support plate 20 is provided with a water collecting trough which is connected and coordinated with the lower end opening of the external water guide frame 303, and a primary filter screen 5 is fixedly installed in the water collecting trough. The spray head 201 is in the shape of an inverted cone, and the circumferential surface and the lower end surface of the spray head 201 are penetrated by spray holes 202.

[0041] During the irrigation process of the sprinkler head 201, the driving unit 4 is used to drive the rotating cylinder 200 to drive the sprinkler head 201 thereon to rotate synchronously. The centrifugal force generated by the rotation causes the irrigation water to be sprayed out from the sprinkler hole 202 while spreading circumferentially with the sprinkler head 201 as the center, thereby expanding the area that can be sprayed by a single sprinkler head 201, improving the utilization rate of water resources during irrigation, and thus improving the irrigation effect.

[0042] like Figure 3 , Figure 6 , Figure 8 and Fig. 9 As shown, the driving unit 4 includes a rope storage box 40, and two rope storage boxes 40 distributed front and back are fixedly installed on the lower end surface of the irrigation support plate 20. A winding shaft 41 with a vertical axis and located in the corresponding rope storage box 40 is rotatably provided on the lower end surface of the irrigation support plate 20. A main rope 43 is wound on the rear winding shaft 41 through a winding roller, and an auxiliary rope 44 is wound on the front winding shaft 41 through a winding roller. The free end of the auxiliary rope 44 passes through the outer water diversion frame 303 and is fixedly connected to the inner water diversion frame 310. The moving seat 314 is connected to the main rope 43 through a traction rope 440. A volute spring 42 is fixedly provided on the winding shaft 41 and the rotating drum 200 and the irrigation support plate 20. A guide wheel 45 for guiding the direction of the main rope 43, the auxiliary rope 44 or the traction rope 440 is fixedly provided on the two rope storage boxes 40. All winding shafts 41 and all rotating drums 200 on the same irrigation support plate 20 are connected by a sprocket chain.

[0043] like Figure 1 , Figure 2 , Figure 4 and Figure 7As shown, the driving unit 4 also includes a mounting frame 46, and a mounting frame 46 is arranged between two adjacent photovoltaic panels, which is installed on the photovoltaic bracket 1 by bracket welding and is flush with the photovoltaic panel. A pull rope plate 47 sliding along its length direction is arranged between all the mounting frames 46 in the same area through an electric slider 1, and a driving seat 470 is arranged on the pull rope plate 47 to slide left and right through an electric slider 2. An external existing cleaning equipment (such as a photovoltaic panel cleaning trolley with a cleaning brush roller) is plugged and installed on the driving seat 470. The external existing cleaning equipment in the figure is only for illustration and can be selected according to the required cleaning size of the photovoltaic panel to ensure that the photovoltaic panel can be covered after a single movement. A plug-in slot 480 is provided on the rear side of the drive seat 470, and a plug-in block 48 is fixedly provided on the free end of the main rope 43. In order to ensure the specified orientation of the main rope 43, a limit rod 490 is fixedly provided on all the mounting frames 46. A limit block 49 corresponding to the irrigation support plate 20 is welded and installed on the limit rod 490. The limit block 49 is U-shaped, and the main rope 43 is located in the U-shaped area corresponding to the limit block 49. The position of the main rope 43 is controlled by the U-shaped area of ​​the limit block 49. Two vertical sections of the limit block 49 are welded and installed with directional pins 482 facing the end face of the drive seat 470, and an directional slot 481 corresponding to the directional pin 482 is provided on the plug-in block 48. After the main rope 43 is tightened or reset, the directional pin 482 is inserted into the directional slot 481, so that the limit block 49 is opposite and parallel to the plug-in block 48, so that the plug-in block 48 is in the specified position, and when the drive seat 470 moves left and right to change its position, the plug-in slot 480 is opposite to a plug-in block 48, ensuring that before the drive seat 470 moves left and right to the specified position and moves forward and backward, the plug-in block 48 can be plugged into the plug-in slot 480 to complete the docking corresponding to the traction action of the main rope 43.

[0044] The electric slider 1, the electric slider 2 (the electric slider 1 and the electric slider 2 are waterproof), the external water pump and the existing external cleaning equipment are all powered by the photovoltaic panel. When the photovoltaic panel needs to be cleaned, the electric slider 2 drives the driving seat 470 to move left and right, and the driving seat 470 drives the cleaning equipment thereon to move to the upper rear side of the photovoltaic panel in the corresponding row. The electric slider 1 drives the pull rope plate 47 to move from top to bottom along the mounting frame 46. In order to pull the main rope 43 through the driving seat 470, when the electric slider 2 moves, the plug block 48 is inserted into the corresponding plug groove 480. During the movement of the cleaning equipment, the photovoltaic panel is cleaned. During the cleaning process, the external water pump pumps the water in the water tank 313 out to the cleaning equipment and is used to clean the photovoltaic panel. The sewage generated during the cleaning process flows along the guide route. At the same time, with the movement of the pull rope plate 47, the driving seat 470 pulls the plug block 48. The main rope 43 is driven to rotate the rear winding shaft 41, and all the rotating drums 200 are rotated synchronously through the sprocket chain transmission. At the same time, the main rope 43 pulls the moving seat 314 backward through the traction rope 440, and the moving seat 314 drives the inner water diversion frame 310 to move synchronously, so that the outer water diversion frame 303 is connected to the water diversion link. Therefore, the sewage generated by cleaning flows into the drainage channel through the outer water diversion frame 303 and enters the sprinkler head 201 through the rotating drum 200. Through the synchronous rotation of the rotating drum 200 and the sprinkler head 201, the sewage is rotated and sprayed to the plants through the sprinkler head 201 to complete the irrigation process. It should be noted that the angular velocity between the winding shaft 41 and the winding roller is the same, but the linear velocity is different. Therefore, when the winding shaft 41 rotates, the main rope 43 and the auxiliary rope 44 wound on the winding roller will be wound out of a greater distance than the rotation length of the winding shaft 41, thereby avoiding the problem of excessive deformation of the vortex spring 42.

[0045] In the above process, the vortex spring 42 is deformed. After completing a single cleaning and a single irrigation, the electric slider is reset. The elastic force generated by the deformation of the vortex spring 42 causes the two winding shafts 41 to rewind the corresponding main rope 43 and auxiliary rope 44 respectively. The auxiliary rope 44 pulls the moving seat 314, so that the moving seat 314 drives the inner water diversion frame 310 and the traction rope 440 to reset.

[0046] After completing the cleaning of a row of photovoltaic panels and the irrigation of the corresponding plants, the electric slider 2 drives the drive seat 470 and the cleaning equipment to move to the top of the next row of photovoltaic panels, and repeats the above process to clean the row of photovoltaic panels and irrigate the plants below.

[0047] like Figure 8 As shown, a secondary filter screen 50 corresponding to the rotating drum 200 is embedded and installed at the bottom of the drainage channel, and the secondary filter screen 50 is located above the rotating drum 200.

[0048] like Figure 8As shown, a sliding block is slidably provided on the upper end surface of the irrigation support plate 20 and penetrates into the drainage channel. The movable seat 314 is fixedly provided on the upper end surface of the sliding block, and a cleaning plate 51 for cleaning the secondary filter 50 is fixedly provided on the lower end surface of the sliding block.

[0049] like Figure 4 , Figure 6 and Figure 8 As shown, the left end face of the irrigation support plate 20 is provided with a plurality of cleaning ports 52 connected to the drainage channel, and the cleaning ports 52 correspond one-to-one to the secondary filter screen 50. A sealing plate 53 for sealing the cleaning ports 52 is slidably provided on the irrigation support plate 20. In order to improve the sealing effect, a rubber layer can be provided at the opposite end of the sealing plate 53 and the irrigation support plate 20.

[0050] After long-term use, the sand particles or other impurities remaining on the photovoltaic panels will enter the drainage channel after cleaning. In the subsequent irrigation process, the primary filter 5 and the secondary filter 50 cooperate with each other to perform secondary filtration on the sewage to avoid clogging of the sprinkler head 201.

[0051] Secondly, when the movable seat 314 moves back and forth, the movable seat 314 cleans the surface of the secondary filter 50 through the sliding block and the cleaning plate 51 to prevent the secondary filter 50 from being blocked and affecting the irrigation effect. After long-term use, the primary filter 5 is manually cleaned, and the sealing plate 53 is opened at the same time. The secondary filter 50 at the corresponding position is replaced or cleaned through the cleaning port 52, and the inside of the irrigation support plate 20 is cleaned to maintain the overall filtering effect.

[0052] It should be noted that the present invention is to be operated in conjunction with existing cleaning equipment. The cleaning equipment needs to clean the photovoltaic panels regularly to ensure the cleanliness of the surface of the photovoltaic panels, that is, the surface of the photovoltaic panels is always in a relatively clean state. Therefore, when rainwater washes the photovoltaic panels, a large amount of mud and debris will not be washed down, and the water storage pipe 311 will not be blocked. Of course, it is also possible to choose to set a filter net in the water collection trough 315 and the water storage tank 313 to further ensure the use effect.

[0053] In addition, the present invention also proposes a photovoltaic sand control method, comprising the following steps: S1, guiding water flow: drought-resistant plants are planted in the sand below the photovoltaic panel. After the inner water diversion frame 310 is put into the water diversion link, a small amount of rainwater flows down from the photovoltaic panel and is guided by the water guide frame 30 and the water guide bar 301. The rainwater flows through the inner water diversion frame 310 to the movable seat 314, and flows into the water storage tank 313 through the water storage pipe 311 for storage.

[0054] S2. Cleaning the photovoltaic panels: The driving unit 4 works, so that the cleaning equipment moves down along the upper side of the same column of photovoltaic panels to clean the photovoltaic panels. At the same time, the external water diversion frame 303 is connected to the water diversion link. The sewage generated during the cleaning of the photovoltaic panels is guided by the water guide frame 30 and the water guide bar 301, and the sewage flows into the drainage channel through the external water diversion frame 303.

[0055] S3, spray irrigation: The sewage in step 2 enters the corresponding spray head 201 through the rotating drum 200 in the drainage channel to irrigate the plants under the photovoltaic panels. On the photovoltaic panels that have not been cleaned, the rainwater in the water tank 313 in step 1 is pumped out to the drainage channel, and the above actions are repeated for irrigation.

[0056] S4, reset switching: After completing the cleaning action in step S2, the driving unit 4 works to reset the cleaning device, the inner water diversion frame 310 is reset to the initial state, the inner water diversion frame 310 is reconnected to the corresponding water diversion link, the cleaning device moves to the next cleaning position, and the cleaning operation is repeated.

[0057] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic sand control device, installed on a photovoltaic bracket and coordinated with an existing cleaning process, characterized in that: include: Irrigation part, the photovoltaic support is installed with an irrigation part, the irrigation part is located directly below the photovoltaic panel, the irrigation part includes an irrigation support plate, a rotating cylinder and a sprinkler head, the irrigation support plate is welded and installed on the photovoltaic support by a fixed support, a drainage channel is opened inside the irrigation support plate, the lower end surface of the irrigation support plate is provided with a sprinkler head through the rotation of the rotating cylinder, the sprinkler head, the rotating cylinder and the drainage channel are connected, and the irrigation support plate is provided with a diversion unit for diverting sewage generated during the photovoltaic panel cleaning process to the irrigation support plate; The photovoltaic support is provided with a driving unit for driving the irrigation part to irrigate and for causing the diversion unit to guide sewage and rainwater; The guide unit includes a water guide frame, the lower end of the photovoltaic panel is snap-fitted with the water guide frame located above the corresponding irrigation support plate, a U-shaped water guide plate is fixedly installed on the front side of the water guide frame, and water guide strips are arranged on both left and right end surfaces of the water guide frame. An outer water guide frame for guiding water flow to the drainage channel is fixedly arranged on the upper front end of the irrigation support plate, and a water flow adjustment part is arranged on the irrigation support plate. The water flow adjustment part includes a movable seat and an inner water guide frame fixed on the movable seat, the movable seat is connected to the water tank through a water storage pipe, and the rear side of the irrigation support plate is connected to the water tank through a water outlet pipe.

2. A photovoltaic sand control device according to claim 1, characterized in that: A water collecting tank is provided in the movable seat, which is composed of a square section and an inverted frustum section from top to bottom. The square section of the water collecting tank runs through the front end surface of the movable seat, and the water inlet of the water storage pipe is located at the center of the frustum section of the water collecting tank.

3. A photovoltaic sand control device according to claim 1, characterized in that: The two water guide bars on the same water guide frame are symmetrical, the water guide bars are inclined forward from left to right, and a buckle is fixedly provided at one end of the water guide bar away from the corresponding water guide frame.

4. A photovoltaic sand control device according to claim 1, characterized in that: The upper end surface of the irrigation support plate is provided with a water collecting trough which is connected and matched with the lower end opening of the outer water diversion frame. The spray head is in the shape of an inverted truncated cone, and the circumferential surface and the lower end surface of the spray head are penetrated with spray holes.

5. The photovoltaic sand control device according to claim 1, characterized in that: The driving unit includes a rope storage box, and two rope storage boxes distributed front and back are fixedly installed on the lower end surface of the irrigation support plate. A winding shaft with a vertical axis and located in the corresponding rope storage box is rotatably arranged on the lower end surface of the irrigation support plate. A main rope is wound on the rear winding shaft through a winding roller, and an auxiliary rope is wound on the front winding shaft through a winding roller. The free end of the auxiliary rope passes through the outer water diversion frame and is fixedly connected to the inner water diversion frame. The moving seat is connected to the main rope by a traction rope, and a vortex spring is fixedly arranged on the winding shaft and the rotating cylinder between the irrigation support plate.

6. A photovoltaic sand control device according to claim 5, characterized in that: The driving unit also includes a mounting frame, and a mounting frame is arranged between two adjacent photovoltaic panels, which is installed on the photovoltaic bracket by bracket welding and is flush with the photovoltaic panel. A pull rope plate that slides along its length direction is arranged between all mounting frames in the same area through an electric slider 1, and a driving seat is arranged on the pull rope plate that slides left and right through an electric slider 2, and a cleaning device is installed on the driving seat.

7. A photovoltaic sand control device according to claim 6, characterized in that: A plug-in slot is provided on the rear side of the driving seat, a plug-in block is fixedly provided on the free end of the main rope, a limit rod is fixedly provided on all mounting frames, a limit block corresponding to the irrigation support plate is welded and installed on the limit rod, the limit block is U-shaped, and directional pins are welded and installed on the two vertical sections of the limit block toward the end surface of the driving seat, and a directional slot corresponding to the directional pin is provided on the plug-in block.

8. The photovoltaic sand control device according to claim 4, characterized in that: A primary filter is fixedly installed in the water collection trough, and a secondary filter corresponding to the rotating cylinder is inlaid and installed at the bottom of the drainage channel. The secondary filter is located above the rotating cylinder. A sliding block that slides back and forth and penetrates into the drainage channel is fixedly installed on the upper end surface of the sliding block, and a cleaning plate for cleaning the secondary filter is fixedly installed on the lower end surface of the sliding block.

9. The photovoltaic sand control device according to claim 1, characterized in that: The left end surface of the irrigation support plate is provided with a plurality of cleaning openings connected with the drainage channel, and a sealing plate for sealing the cleaning openings is provided on the irrigation support plate for sliding back and forth.

10. A photovoltaic sand control method, which is accomplished by using a photovoltaic sand control device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Water flow guidance: Drought-resistant plants are planted in the sand below the photovoltaic panels. After the inner water diversion frame is put into the water diversion link, rainwater flows into the mobile seat through the inner water diversion frame and flows into the water storage tank through the water storage pipe for storage; S2. Cleaning the photovoltaic panels: The driving unit works to move the cleaning equipment downward along the upper side of the photovoltaic panels to clean the photovoltaic panels. At the same time, the external water diversion frame is connected to the water diversion link. The sewage generated during the cleaning of the photovoltaic panels enters the external water diversion frame through the guidance of the water diversion frame and the water guide strips. The sewage flows into the drainage channel through the external water diversion frame. S3, spray irrigation: the sewage in step S2 enters the corresponding spray head through the rotating drum in the drainage channel to irrigate the plants under the photovoltaic panel, and on the photovoltaic panel that has not been cleaned, the rainwater in the water storage tank in step 1 is pumped out to the drainage channel, and the above actions are repeated for irrigation; S4, reset switching: After completing the cleaning action in step S2, the driving unit works to reset the cleaning device, the inner water diversion frame is reset to the initial state, the inner water diversion frame is reconnected to the corresponding water diversion link, the cleaning device moves to the next cleaning position, and the cleaning operation is repeated.

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