Photovoltaic panel cleaning device

Abstract

The invention discloses a photovoltaic panel cleaning device, which relates to the technical field of general cleaning, and comprises two translation devices, a washing assembly and a supply source, the two translation devices are arranged on the two sides of the photovoltaic panel respectively, the two ends of the scouring assembly are connected with the two translation devices respectively, the supply source is arranged on the photovoltaic panel, the supply source communicates with the scouring assembly, and the supply source is used for supplying a cleaning agent, water and high-pressure gas to the scouring assembly. The scouring assembly reciprocates along the surface of the photovoltaic panel through the translation device and cleans the photovoltaic panel. According to the photovoltaic panel cleaning device, high-viscosity coal tar pollutants attached to the photovoltaic panel can be efficiently removed through gas-liquid collaborative cleaning of the scouring assembly in cooperation with a special cleaning agent, the light transmittance of the cleaned photovoltaic panel can be improved by 10%-15% (referring to the data result of a black sea power station), meanwhile, the material corrosion risk is reduced to be within a safety threshold value, and the service life of the photovoltaic panel is prolonged. The cleaning device is suitable for cleaning photovoltaic panels of heavy-pollution photovoltaic power stations such as the black sea.

Description

Technical Field

[0001] The present invention relates to the general field of cleaning technology, and more specifically, to a photovoltaic panel cleaning device. Background Art

[0002] In photovoltaic power generation systems, photovoltaic panels are exposed to outdoor environments for a long time, and stubborn pollutants such as coal tar and dust are easily accumulated on the surface. Especially near industrial areas (such as Wuhai mining areas), coal tar deposits (containing high sulfur and strong adhesive components) will significantly reduce the panel transmittance and power generation efficiency. Therefore, for photovoltaic panels used under certain working conditions, it is difficult to remove high-viscosity pollutants. Traditional high-pressure water washing or mechanical brushing is difficult to effectively decompose sticky substances such as coal tar. When using a cleaning agent, there is a risk of residual cleaning agent and corrosion of sealants and aluminum alloy parts. And if the cleaning agent is simply used for flushing, and then the cleaning agent is rinsed with a large amount of clean water (the patent number CN201780083501 records that the single water consumption is 0.3~0.5L / ㎡), there is a situation of low flushing efficiency and waste of resources, and the residual water stains on the photovoltaic panel will also absorb new pollutants. The above problems cause the operation and maintenance costs of photovoltaic power stations to increase by 20%~40%, and the annual power generation loss in highly polluted areas exceeds 15%. Therefore, the present invention provides a photovoltaic panel cleaning device to solve the above technical problems. Summary of the invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0004] In order to at least partially solve the above-mentioned problems, the present invention provides a photovoltaic panel cleaning device, comprising: two translation devices, a flushing assembly and a supply source; the two translation devices are respectively arranged on both sides of the photovoltaic panel, and the two ends of the flushing assembly are respectively connected to the two translation devices, the supply source is arranged on the photovoltaic panel, and the supply source is connected to the flushing assembly. The supply source is used to supply cleaning agent, and / or water, and / or high-pressure gas to the flushing assembly, and the flushing assembly reciprocates along the surface of the photovoltaic panel through the translation device to clean the photovoltaic panel.

[0005] Preferably, a recovery tank is provided below the photovoltaic panel for recovering cleaning agent and / or water.

[0006] Preferably, the flushing component consists of an equipment assembly and a flushing module arranged in the equipment assembly, the flushing module is connected to the supply source, the initial position of the flushing component is located at the highest point of the photovoltaic panel, the return position is located at the lowest point of the photovoltaic panel, and the flushing module is located on the side of the equipment assembly close to the lowest point.

[0007] Preferably, the equipment assembly is a cubic shell having a first opening on one side, the first opening facing the lowest point of the photovoltaic panel, the flushing module is located inside the equipment assembly and extends from the first opening to the outside of the equipment assembly, the flushing module is movably connected to the equipment assembly, and the outer wall of the equipment assembly is movably connected to the translation device.

[0008] Preferably, the flushing module is composed of a plurality of duplex nozzles, one end of the duplex nozzle is movably connected to the inner wall of the equipment assembly, and the other end extends from the first opening to the outside of the equipment assembly, and the supply source is connected to the duplex nozzle for supplying fluid to the duplex nozzle.

[0009] Preferably, the duplex nozzle consists of a gas tube and a liquid injection end, the gas tube consists of an assembly tube and two duckbill tubes, one end of the assembly tube is movably connected to the inner wall of the equipment assembly, and the other end is connected to the two duckbill tubes, the two duckbill tubes are arranged in parallel, the side wall of the assembly tube is provided with an air hole, and is connected to the gas supply source in the supply source through the air pipe, and the liquid injection end is arranged between the two duckbill tubes and is connected to the liquid supply source in the supply source.

[0010] Preferably, a connecting plate is provided between the two duckbill tubes, a strip-shaped limiting hole is provided on the connecting plate, a limiting column is provided on the liquid injection end, and the limiting column is located in the limiting hole. Through the cooperation of the limiting column and the limiting hole, the liquid injection end can move along the central axis direction of the assembly tube.

[0011] Preferably, the flushing component also includes a brushing module, which is located on one side of the equipment assembly near the highest point. A second opening is also provided on the equipment assembly, and the second opening faces the photovoltaic panel. A partition is provided in the equipment assembly, and the equipment assembly is divided into a flushing area and a brushing area. The first opening and the flushing module are located in the flushing area, and the second opening and the brushing module are located in the brushing area. The brushing module selectively extends from the second opening to outside the brushing area and contacts the photovoltaic panel.

[0012] Preferably, the brushing module consists of a driving motor and a plurality of roller brushes connected in sequence through a coupling. The driving motor is arranged on the equipment assembly and connected to the roller brush located at the end through a coupling. The roller brush located at the end away from the driving motor is movably connected to the inner wall of the equipment assembly through a coupling.

[0013] Preferably, the roller brush is composed of a roller core provided with a connecting piece, two support frames mounted on the roller core, and a plurality of cleaning sheets movably connected to the roller core, the side wall of the roller core is provided with a plurality of mounting holes along the circumferential direction, the support frame is composed of a fixing ring and a plurality of supporting columns arranged on the fixing ring, the supporting columns of the two support frames are opposite to each other, and the supporting columns of the two support frames are staggered, the mounting hole is located between two adjacent supporting columns of the two support frames, one side of the cleaning sheet is a cleaning surface, and the other side is provided with mounting columns, the mounting columns are arranged in the mounting holes, and the fixing ring and the support columns are used to support the cleaning sheet.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention can effectively remove high-viscosity coal tar pollutants attached to photovoltaic panels through gas-liquid coordinated cleaning of the flushing components in combination with a special cleaning agent, so that the transmittance of the cleaned photovoltaic panels can be increased by 10% to 15% (refer to the data results of the Wuhai Power Station), while reducing the risk of material corrosion to a safe threshold. The present invention is suitable for cleaning photovoltaic panels in heavily polluted photovoltaic power stations such as Wuhai.

[0015] The photovoltaic panel cleaning device described in the present invention, other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of the photovoltaic panel cleaning device described in the present invention.

[0017] Figure 2 A schematic diagram of the flushing assembly.

[0018] Figure 3 Schematic diagram of a dual-fluid nozzle.

[0019] Figure 4 This is the front view of the dual-fluid nozzle.

[0020] Figure 5 This is a top view of the dual-fluid nozzle spraying liquid.

[0021] Figure 6 This is the right view of the dual-fluid nozzle spraying liquid.

[0022] Figure 7 An exploded view of a roller brush.

[0023] Figure 8It is a schematic diagram of two adjacent roller brushes at different heights.

[0024] Fig. 9 Comparison of metallographic experiments of photovoltaic panels before and after cleaning (a is before cleaning, b is after cleaning).

[0025] Fig.10 The effects of different wiping tools on panel residues (a: sponge wiping, b: cotton ball wiping, c: cotton ball cleaning, d: roller cleaning).

[0026] In the figure: 1 translation device, 2 flushing assembly, 21 flushing module, 22 scrubbing module, 221 drive motor, 222 coupling, 3 supply source, 4 photovoltaic panel, 5 recovery tank, 6 equipment assembly, 61 partition, 7 dual-fluid nozzle, 71 gas pipe, 711 assembly pipe, 712a, 712b duckbill tube, 72 liquid injection end, 721 limit column, 73 connecting plate, 731 limit hole, 8 roller brush, 81 roller core, 811 mounting hole, 82 connecting piece, 83a, 83b support frame, 831a, 831b fixing ring, 832a, 832b support column, 84 cleaning sheet, 841 mounting column. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0028] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0029] like Figure 1-Figure 10 As shown, the present invention provides a photovoltaic panel cleaning device, including: two translation devices 1, a flushing component 2 and a supply source 3; the two translation devices 1 are respectively arranged on both sides of the photovoltaic panel 4, and the two ends of the flushing component 2 are respectively connected to the two translation devices 1, and the flushing component 2 reciprocates along the surface of the photovoltaic panel 4 through the translation device 1, and cleans the photovoltaic panel 4. The translation device 1 can be a screw assembly driven by a motor, or it can be any commercially available product or prior art that can drive the flushing component 2 to translate along the surface of the photovoltaic panel 4. The supply source 3 is arranged on the photovoltaic panel 4, and the supply source 3 is connected to the flushing component 2, and the supply source 3 is used to supply cleaning agent, and / or water, and / or high-pressure gas to the flushing component 2, because the front panel of the photovoltaic panel 4 will be deposited with relatively dense coal tar component pollutants, such as Fig. 9As shown in a, it is necessary to add a cleaning agent to clean the pollutants on the surface of the photovoltaic panel 4. Taking the cleaning of the photovoltaic panel of Wuhai Power Station as an example, it is observed through experiments that although the cleaning agent has a weak corrosion effect on general sealants (12-hour immersion test) and aluminum alloy parts (12-hour immersion test), in order to further avoid the cleaning agent from affecting the photovoltaic panel 4, the supply source 3 usually provides water to rinse the cleaning agent and reduce surface residues. The supply source 3 also usually provides high-pressure gas to quickly dry the residual liquid on the surface of the photovoltaic panel 4, and the solid pollutants on the surface of the photovoltaic panel 4 can also be blown off by high-pressure gas. A recovery tank 5 is provided below the photovoltaic panel 4 to recover the cleaning agent and / or water to avoid pollution to the power station and surrounding land.

[0030] Working principle and beneficial effects of the above technical solution: Through the design of the above structure, the present invention realizes gas-liquid coordinated cleaning by cooperating with the flushing component 2 and the supply source 3, and can effectively solve the problems existing in the prior art by cooperating with a special cleaning agent. The use process of the cleaning device is as follows: S1: The supply source 3 provides high-pressure gas to the flushing component 2 for pre-purge to remove loose particles on the surface of the photovoltaic panel 4; S2: The translation device 1 drives the flushing assembly 2 to move from the highest point to the lowest point of the photovoltaic panel 4. During the movement, the supply source 3 supplies cleaning agent and high-pressure gas to the flushing assembly 2. The high-pressure gas is used to remove surface particles and limit the spray range of the cleaning agent. The coal tar attached to the surface of the photovoltaic panel 4 is dissolved and removed by the flushing assembly 2. When the flushing assembly 2 moves to the lowest point of the photovoltaic panel 4, the supply source 3 stops supplying the cleaning agent and high-pressure gas, and the flushing assembly 2 is reset to the highest point; S3: the flushing assembly 2 moves to the lowest point again, the supply source 3 supplies water and high-pressure gas to the flushing assembly 2 to flush the surface of the photovoltaic panel 4. The high-pressure gas increases the fluidity of water on the surface of the photovoltaic panel 4, avoids the accumulation of contaminated water in dead corners, and reduces the residual cleaning agent. When the flushing assembly 2 moves to the lowest point of the photovoltaic panel 4, the supply source 3 stops supplying water and high-pressure gas, and the flushing assembly 2 is reset to the highest point; S4: The flushing component 2 moves to the lowest point for the third time, and the supply source 3 supplies high-pressure gas to the flushing component 2 to dry the surface of the photovoltaic panel 4 and blow the remaining contaminated water into the recovery tank 5 to prevent the remaining water stains from absorbing pollutants again and causing secondary pollution. When the flushing component 2 moves to the lowest point of the photovoltaic panel 4, the supply source 3 stops supplying high-pressure gas, and the flushing component 2 is reset to the highest point.

[0031] The recovery tank 5 may be integrated with a filtering system for separating the coal tar precipitate and the cleaning liquid to achieve the reuse of waste water. The relevant filtering system may be a commercially available product or existing technology.

[0032] The present invention can effectively remove high-viscosity coal tar pollutants attached to the photovoltaic panel 4 through the gas-liquid coordinated cleaning of the flushing component 2 in combination with a special cleaning agent, so that the transmittance of the cleaned photovoltaic panel 4 can be increased by 10% to 15% (refer to the data results of the Wuhai power station), and at the same time, the risk of material corrosion is reduced to a safe threshold. The present invention is suitable for cleaning photovoltaic panels in heavily polluted photovoltaic power stations such as Wuhai.

[0033] Furthermore, the flushing component 2 is composed of a device assembly 6 and a flushing module 21 disposed in the device assembly 6, the flushing module 21 is connected to the supply source 3, the initial position of the flushing component 2 is located at the highest point of the photovoltaic panel 4, the return position is located at the lowest point of the photovoltaic panel 4, and the flushing module 21 is located on one side of the device assembly 6 close to the lowest point. The device assembly 6 is a cubic shell having a first opening on one side, the first opening facing the lowest point of the photovoltaic panel 4, the flushing module 21 is located in the device assembly 6, and extends from the first opening to the outside of the device assembly 6, the flushing module 21 is movably connected to the device assembly 6, and usually the flushing module 21 and the device assembly 6 are rotatably connected, so that the flushing direction and position of the flushing module 21 can be adjusted according to different photovoltaic panels 4, and the outer wall of the device assembly 6 is movably connected to the translation device 1.

[0034] As one of many implementations, the flushing module 21 is composed of a plurality of dual-fluid nozzles 7, one end of which is movably connected to the inner wall of the equipment assembly 6, usually a rotating connection, so that the flushing module 21 can adjust the spray angle of each dual-fluid nozzle 7 as needed, and an automatic adjustment device can also be set at the connection between the dual-fluid nozzle 7 and the equipment assembly 6 to achieve remote adjustment without manual adjustment. The automatic adjustment device can be a commercially available product or existing technology. The other end extends from the first opening to the outside of the equipment assembly 6 to prevent liquid from dripping into the equipment assembly 6. The supply source 3 is connected to the dual-fluid nozzle 7 and is used to supply fluid to the dual-fluid nozzle 7. The dual-fluid can be divided into gas and liquid, and the liquid includes cleaning agent and water.

[0035] Therefore, the dual-fluid nozzle 7 is composed of a gas pipe 71 and a liquid injection end 72, and the gas pipe 71 is composed of an assembly pipe 711 and two duckbill tubes 712a, 712b. One end of the assembly pipe 711 is movably connected to the inner wall of the equipment assembly 6 for adjusting the injection position of the dual-fluid nozzle 7, and the other end is connected to the two duckbill tubes 712a, 712b. The two duckbill tubes 712a, 712b are arranged in parallel. The side wall of the assembly pipe 711 is provided with an air hole, and is connected to the gas supply source in the supply source 3 through an air pipe. The high-pressure gas enters the assembly pipe 711 through the air hole, and then is distributed to the two duckbill tubes 712a, 712b through the assembly pipe 711. Usually, the two duckbill tubes 712a, 712b are arranged in parallel one above and one below. The duckbill tube 712a is located above the duckbill tube 712b, and the duckbill tubes 712a, 712b are parallel to the surface of the photovoltaic panel 4, and the opening of the duckbill tube faces the photovoltaic panel.

[0036] The liquid injection end 72 is arranged between the two duckbill tubes 712a, 712b and is connected to the liquid supply source 3 in the supply source 3, so that when the flushing module 21 moves from the highest point to the lowest point of the photovoltaic panel 4, the duckbill tube 712a located above can blow the surface of the photovoltaic panel 4 in advance to remove the particulate pollutants in advance, and limit the liquid injected by the liquid injection end 72 to avoid the liquid from dispersing to the non-cleaning position and causing waste of cleaning liquid or water. The duckbill tube 712b located below can flush the photovoltaic panel 4 sprayed with cleaning liquid or water, improve the flushing efficiency, reduce liquid residue, and reduce the risk of secondary pollution caused by liquid attached pollutants. At the same time, the duckbill tube 712a is used to limit the injected liquid. Figure 5 and Figure 6 As shown, the liquid spraying end 72 ensures the spraying range while avoiding diffusion to non-cleaning areas, thereby reducing the waste of cleaning agent and water.

[0037] Furthermore, a connecting plate 73 is provided between the two duckbill tubes 712a, 712b, and a strip-shaped limiting hole 731 is provided on the connecting plate 73. A limiting post 721 is provided on the liquid injection end 72, and the limiting post 721 is located in the limiting hole 731. Through the cooperation of the limiting post 721 and the limiting hole 731, the liquid injection end 72 can move along the central axis direction of the assembly tube 711. Usually, the limiting post 721 can be a stud and is installed on the connecting plate 73 in cooperation with a nut, such as Figure 4 As shown, the liquid spray end 72 can be a commercially available product or an existing technology. By making the liquid spray end 72 detachably connected to the connecting plate 73, the liquid spray end 72 can be more conveniently replaced and repaired, and the position of the liquid spray end 72 can be adjusted according to the spraying area of ​​different liquid spray ends, so as to avoid the situation where the sprayed liquid particles are too dispersed, resulting in a reduced cleaning effect.

[0038] Furthermore, the flushing assembly 2 also includes a brushing module 22, which is located on one side of the equipment assembly 6 near the highest point. The equipment assembly 6 is also provided with a second opening, which faces the photovoltaic panel 4. A partition 61 is provided in the equipment assembly 6, and the equipment assembly 6 is divided into a flushing area and a brushing area. The first opening and the flushing module 21 are located in the flushing area, and the second opening and the brushing module 22 are located in the brushing area. The brushing module 22 selectively extends from the second opening to the outside of the brushing area and contacts the photovoltaic panel 4. The brushing module 22 is composed of a driving motor 221 and a plurality of roller brushes 8 connected in sequence through a coupling 222. The driving motor 221 is provided on the equipment assembly 6 and is connected to the roller brush 8 at the end through a coupling 222. The roller brush 8 at the end away from the driving motor 221 is movably connected to the inner wall of the equipment assembly 6 through the coupling 222. The driving motor 221 and the coupling 222 are both commercially available products or prior art. Since the photovoltaic panel 4 is provided with aluminum alloy parts and joints filled with sealant, its surface is not a complete plane. In order to make the roller brush 8 always fit the surface, the present invention connects the roller brush 8 in sequence through the coupling 222, so that during the movement of the flushing assembly 2, the roller brush 8 can keep rotating to clean the surface of the photovoltaic panel 4 and can also always fit on the cleaning surface, such as Figure 8 To ensure cleaning efficiency, the roller brush 8 is usually located between the two dual-media nozzles 7. Figure 2 shown.

[0039] Furthermore, after testing the corrosiveness of the cleaning agent, we also conducted a corresponding experiment on the effect of cleaning tools on the cleaning effect. In the experiment, we found that after wiping with a sponge, there was white wiping residue on the low and flat parts of the panel (such as Fig.10 As shown in the figure), these residues are difficult to detect with the naked eye, but can affect the light transmittance. After wiping with cotton swabs and cotton balls, these wiping residues are significantly reduced, indicating that the cleaning of the wiping tool (cloth or brush) itself is very important in the photovoltaic panel cleaning construction project. The effect of scrubbing with cotton balls is much better than that of washing with rollers (lighter wiping). Because the contact friction with the components will be greater when wiping with cotton balls, the greater the cleaning force, the better the cleaning effect. However, if cotton materials are used as roller brushes 8, their service life is short and they need to be replaced frequently. In order to reduce the difficulty of replacement, we have further optimized the roller brush 8.

[0040] The roller brush 8 is composed of a roller core 81 provided with a connecting piece 82, two support frames 83a, 83b sleeved on the roller core 81, and a plurality of cleaning sheets 84 movably connected to the roller core 81, the connecting piece 82 is used to connect with the coupling 222, or to be movably connected with the inner wall of the equipment assembly 6, or to be connected with the driving motor 221, the side wall of the roller core 81 is provided with a plurality of mounting holes 811 along the circumferential direction, the support frames 83a, 83b are composed of fixing rings 831a, 831b and a plurality of supporting columns 832a, 832b arranged on the fixing rings 831a, 831b, the supporting columns 832a of the supporting frame 83a are connected to the supporting frames 83b The support columns 832b are opposite to each other, and the support columns 832a of the support frame 83a are staggered with the support columns 832b of the support frame 83b. The mounting hole 811 is located between the support columns 832a and the support columns 832b. The support frames 83a and 83b can provide support for the cleaning sheet 84 when the cleaning sheet 84 rotates or when cleaning the surface of the photovoltaic panel 4. One side of the cleaning sheet 84 is a cleaning surface, which can be made of cotton material, and the other side is provided with a mounting column 841, which is arranged in the mounting hole 811. The fixing rings 831a, 831b and the support columns 832a, 832b are used to support the cleaning sheet 84. By arranging detachable cleaning sheets 84 at intervals, the consumables used for scrubbing the surface of the photovoltaic panel 4 are miniaturized and modularized. During daily maintenance, the cleaning sheet 84 can be directly pulled off the roller core 81 and then a new cleaning sheet 84 can be inserted. There are gaps between the alternately arranged support columns 832a, 832b, which can accommodate particulate contaminants that are not blown away by the dual-fluid nozzle 7, thereby avoiding scratches on the surface of the photovoltaic panel 4 during the scrubbing process.

[0041] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A photovoltaic panel cleaning device, characterized in that: include: Two translation devices (1), a flushing assembly (2) and a supply source (3); the two translation devices (1) are respectively arranged on both sides of a photovoltaic panel (4); the two ends of the flushing assembly (2) are respectively connected to the two translation devices (1); the supply source (3) is arranged on the photovoltaic panel (4); the supply source (3) is connected to the flushing assembly (2); the supply source (3) is used to supply a cleaning agent and / or water and / or high-pressure gas to the flushing assembly (2); the flushing assembly (2) reciprocates along the surface of the photovoltaic panel (4) through the translation device (1) and cleans the photovoltaic panel (4).

2. The photovoltaic panel cleaning device according to claim 1, characterized in that: A recovery tank (5) is provided below the photovoltaic panel (4) for recovering cleaning agent and / or water.

3. The photovoltaic panel cleaning device according to claim 1, characterized in that: The flushing component (2) is composed of a device assembly (6) and a flushing module (21) arranged in the device assembly (6); the flushing module (21) is connected to the supply source (3); the initial position of the flushing component (2) is located at the highest point of the photovoltaic panel (4); the return position is located at the lowest point of the photovoltaic panel (4); and the flushing module (21) is located on a side of the device assembly (6) close to the lowest point.

4. The photovoltaic panel cleaning device according to claim 3, characterized in that: The device assembly (6) is a cubic shell having a first opening on one side, the first opening facing the lowest point of the photovoltaic panel (4), the flushing module (21) is located inside the device assembly (6) and extends from the first opening to the outside of the device assembly (6), the flushing module (21) is movably connected to the device assembly (6), and the outer wall of the device assembly (6) is movably connected to the translation device (1).

5. The photovoltaic panel cleaning device according to claim 4, characterized in that: The flushing module (21) is composed of a plurality of dual-fluid nozzles (7), one end of the dual-fluid nozzle (7) is movably connected to the inner wall of the equipment assembly (6), and the other end extends from the first opening to the outside of the equipment assembly (6), and the supply source (3) is connected to the dual-fluid nozzle (7) for supplying fluid to the dual-fluid nozzle (7).

6. The photovoltaic panel cleaning device according to claim 5, characterized in that: The dual-fluid nozzle (7) is composed of a gas tube (71) and a liquid injection end (72). The gas tube (71) is composed of an assembly tube (711) and two duckbill tubes (712a, 712b). One end of the assembly tube (711) is movably connected to the inner wall of the equipment assembly (6), and the other end is connected to the two duckbill tubes (712a, 712b). The two duckbill tubes (712a, 712b) are arranged in parallel. The side wall of the assembly tube (711) is provided with an air hole and is connected to the gas supply source in the supply source (3) through the air tube. The liquid injection end (72) is arranged between the two duckbill tubes (712a, 712b) and is connected to the liquid supply source in the supply source (3).

7. The photovoltaic panel cleaning device according to claim 6, characterized in that: A connecting plate (73) is provided between the two duckbill tubes (712a, 712b), a strip-shaped limiting hole (731) is provided on the connecting plate (73), a limiting column (721) is provided on the liquid injection end (72), the limiting column (721) is located in the limiting hole (731), and through the cooperation between the limiting column (721) and the limiting hole (731), the liquid injection end (72) can move along the central axis direction of the assembly tube (711).

8. The photovoltaic panel cleaning device according to claim 4, characterized in that: The flushing assembly (2) further comprises a scrubbing module (22), the scrubbing module (22) being located on one side of the equipment assembly (6) close to the highest point, the equipment assembly (6) being further provided with a second opening, the second opening being directed toward the photovoltaic panel (4), a partition (61) being provided in the equipment assembly (6) and dividing the equipment assembly (6) into a flushing area and a scrubbing area, the first opening and the flushing module (21) being located in the flushing area, the second opening and the scrubbing module (22) being located in the scrubbing area, the scrubbing module (22) selectively extending from the second opening to outside the scrubbing area and contacting the photovoltaic panel (4).

9. The photovoltaic panel cleaning device according to claim 8, characterized in that: The scrubbing module (22) is composed of a driving motor (221) and a plurality of roller brushes (8) connected in sequence via a coupling (222); the driving motor (221) is arranged on the equipment assembly (6) and is connected to the roller brush (8) located at the end via the coupling (222); the roller brush (8) located at the end away from the driving motor (221) is movably connected to the inner wall of the equipment assembly (6) via the coupling (222).

10. The photovoltaic panel cleaning device according to claim 9, characterized in that: The roller brush (8) comprises a roller core (81) provided with a connecting piece (82), two support frames (83a, 83b) sleeved on the roller core (81), and a plurality of cleaning sheets (84) movably connected to the roller core (81); a plurality of mounting holes (811) are provided on the side wall of the roller core (81) along the circumferential direction; the support frames (83a, 83b) comprise a fixing ring (831a, 831b) and a plurality of supporting columns (832a, 832b) provided on the fixing ring (831a, 831b); the two support frames (83a, 83b) are supported by a plurality of support columns (831a, 831b) and a plurality of support columns (832a, 832b) provided on the fixing ring (831a, 831b); The columns (832a, 832b) are opposite to each other, and the support columns (832a, 832b) of the two support frames (83a, 83b) are arranged in a staggered manner; the mounting hole (811) is located between two adjacent support columns (832a, 832b) of the two support frames (83a, 83b); one side of the cleaning sheet (84) is a cleaning surface, and the other side is provided with a mounting column (841); the mounting column (841) is arranged in the mounting hole (811); and the fixing ring (831a, 831b) and the support columns (832a, 832b) are used to support the cleaning sheet (84).

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