Photovoltaic cleaning spray device

Abstract

A photovoltaic cleaning spray device includes a shell, a cleaning roller brush, a water delivery component, and a nozzle; the water delivery component includes a pump body, a manifold, and a water pipe; the pump body is fixed to the top outside the shell, the manifold is arranged on the outer surface of the shell, the inlet end of the manifold is connected to the outlet end of the pump body, the manifold has at least two outlet ends, each water pipe is arranged at the top outside the shell along the length direction of the shell, the top of the shell is provided with a joint connected to the inside of the shell, the joint is connected to the outlet end of each water pipe; the cleaning roller brush is rotatably arranged inside the shell along the length direction of the shell; the nozzle is installed on the joint so that the nozzle is located obliquely above the cleaning roller brush, and the nozzle sprays toward the cleaning roller brush. The liquid required for cleaning the photovoltaic panel is delivered to the nozzle through the water delivery component, and the nozzle is used to continuously spray liquid on the rotating cleaning roller brush. During the rotation of the cleaning roller brush, the wet cleaning roller brush and the surface of the photovoltaic panel are closely polished or rubbed to achieve the purpose of loosening and softening the dirt.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panel cleaning, in particular to a photovoltaic cleaning spray device. Background Art

[0002] As an environmentally friendly and pollution-free new energy, light energy has developed particularly rapidly in recent years, and large photovoltaic power stations have been built all over the world. Since photovoltaic power stations are built in open-air environments with open areas and abundant sunshine, a large amount of dust, soot, fallen leaves, bird droppings and other dirt will accumulate on the surface of photovoltaic panels, as well as dust traces left after rainwater evaporates. These will seriously affect the photovoltaic panels' absorption of solar energy and conversion of electricity. The loss of photovoltaic power generation efficiency caused by different dirt accumulation ranges from 5% to 20%, so the cleaning of photovoltaic panels is very important. With the advancement of customer technology, the emergence of photovoltaic cleaning robots has replaced manual operations, which can effectively solve the problems of hidden cracks in solar panels and personal safety caused by uneven manual cleaning. Among them, the photovoltaic panel cleaning robot brush and water cleaning mode are required to have the highest cleaning efficiency and the best effect.

[0003] However, considering the geographical distribution of the photovoltaic power stations where the photovoltaic cleaning robots perform cleaning operations, it is somewhat difficult to obtain and replenish the water required for the spraying system during the robot cleaning process; the prior art generally uses an external high-pressure liquid supply station, an external water pipe spray, or a large-flow spray system of the robot itself, which makes the robot have a poor water-saving effect during the cleaning operation and cannot meet the needs of large-area cleaning in the wild; and when a large-flow spray is used, the overall weight of the cleaning robot will also increase, which will increase the load on the photovoltaic panels. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned technology, it is necessary to provide a photovoltaic cleaning spray device.

[0005] A photovoltaic cleaning and spraying device, comprising a shell, a cleaning roller brush, a water delivery component, and a nozzle;

[0006] The water delivery assembly includes a pump body, a manifold, and a water pipe; the pump body is fixed to the top outside the shell, the manifold is arranged on the outer surface of the shell, the inlet end of the manifold is connected to the outlet end of the pump body, the manifold has at least two outlet ends, the number of the water pipes corresponds to the number of the manifold outlet ends, each water pipe is arranged on the top outside the shell along the length direction of the shell, the top of the shell is provided with a joint connected to the inside of the shell, and the joint is connected to the outlet end of each water pipe;

[0007] The cleaning roller brush is rotatably arranged inside the shell along the length direction of the shell, and the lower end of the cleaning roller brush extends along the lower end of the shell to clean the photovoltaic panel;

[0008] The nozzle is installed on the joint so that the nozzle is located obliquely above the cleaning roller brush, and the spraying direction of the nozzle is toward the cleaning roller brush.

[0009] Preferably, the cleaning roller brush comprises a cylinder rotatably arranged inside the shell along the length direction of the shell, and a brush arranged on the cylinder; the brushes are arranged at equal intervals along the circumferential direction of the cylinder.

[0010] Preferably, the two ends of the brush are arranged in a straight line without rotation and at equal distances, and the remaining part is spirally aligned towards each other.

[0011] Preferably, the cleaning roller brush is powered by a driving unit disposed outside the housing.

[0012] Preferably, a guide groove is provided on the inner wall of the nozzle outlet end, and the guide groove is distributed in a fan shape.

[0013] Preferably, the joints are evenly distributed along the length direction of the shell.

[0014] Preferably, the joint is fastened to the housing by means of clamping plate bolts.

[0015] Preferably, a sensor is installed at the input end of the manifold to detect whether there is cleaning liquid in the water pipe.

[0016] Compared with the prior art, the photovoltaic cleaning spray device provided by the utility model includes a shell, a cleaning roller brush, a water delivery component, and a nozzle; the water delivery component includes a pump body, a manifold, and a water pipe; the pump body is fixed to the top outside the shell, the manifold is arranged on the outer surface of the shell, the inlet end of the manifold is connected to the outlet end of the pump body, the manifold has at least two outlet ends, the number of water pipes corresponds to the number of the manifold outlet ends, each water pipe is arranged at the top outside the shell along the length direction of the shell, and a joint connected to the inside of the shell is arranged at the top of the shell, and the joint is connected to the outlet end of each water pipe; the cleaning roller brush is rotatably arranged inside the shell along the length direction of the shell, and the lower end of the cleaning roller brush extends along the lower end of the shell to clean the photovoltaic panel; the nozzle is installed on the joint so that the nozzle is located obliquely above the cleaning roller brush, and the spray direction of the nozzle is toward the cleaning roller brush. The liquid required for cleaning the photovoltaic panel is delivered to the nozzle through the water delivery component, and the nozzle is used to continuously spray the liquid on the rotating cleaning roller brush. During the rotation of the cleaning roller brush, the wet cleaning roller brush and the surface of the photovoltaic panel are closely polished or rubbed to achieve the purpose of loosening and softening the dirt. During the cleaning process, the nozzle will not spray the liquid directly on the photovoltaic panel, but on the cleaning roller brush. On the one hand, it can keep the cleaning roller brush moist for easy cleaning; on the other hand, it can clean the cleaning roller brush so that less impurities are attached to the cleaning roller brush to improve the cleaning efficiency; the photovoltaic panel can be cleaned at a smaller spray flow rate to save cleaning liquid, and it can be used in the field. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a side structural schematic diagram of the utility model.

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure of AA.

[0021] Figure 4 For this utility model Figure 1 A partial enlarged view of point A in the middle.

[0022] Figure 5 For this utility model Figure 3 A partial enlarged view of point B in the middle.

[0023] Figure 6 It is a structural schematic diagram of the cleaning roller brush of the utility model.

[0024] Figure 7 It is a structural schematic diagram of the nozzle of the utility model.

[0025] Figure 8 This is a schematic diagram of the nozzle layout of the utility model.

[0026] Fig. 9 This is a cleaning path diagram of the utility model.

[0027] In the figure: housing 01, joint 11, cleaning roller brush 02, cylinder 21, brush 22, water delivery assembly 03, pump body 31, manifold 32, water pipe 33, nozzle 04, guide groove 41, sensor 05, pressing plate 06. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0030] Please see Figures 1 to 9 The utility model provides a photovoltaic cleaning spray device, including a shell 01, a cleaning roller brush 02, a water delivery component 03, and a nozzle 04; the water delivery component 03 includes a pump body 31, a manifold 32, and a water pipe 33; the pump body 31 is fixed on the top outside the shell 01, the manifold 32 is arranged on the outer surface of the shell 01, the inlet end of the manifold 32 is connected to the outlet end of the pump body 31, the manifold 32 has at least two outlet ends, the number of water pipes 33 corresponds to the number of outlet ends of the manifold 32, each water pipe 33 is arranged on the top outside the shell 01 along the length direction of the shell 01, and a joint 11 connected to the inside of the shell 01 is arranged on the top of the shell 01, and the joint 11 is connected to the outlet end of each water pipe 33. The cleaning roller brush 02 is rotatably arranged inside the shell 01 along the length direction of the shell 01, and the lower end of the cleaning roller brush 02 extends along the lower end of the shell 01, and the lower end of the cleaning roller brush 02 will contact the surface of the photovoltaic panel to clean the photovoltaic panel. The nozzle 04 is mounted on the joint 11 so that the nozzle 04 is located obliquely above the cleaning roller brush 02, and the spray direction of the nozzle 04 is toward the cleaning roller brush 02. A plurality of cavities for mounting the nozzle 04 are reserved inside the housing 01, so that the nozzle 04 does not interfere with the movement of the cleaning roller brush 02 in terms of spatial relationship after being installed and fixed. At the same time, a certain distance is reserved between the nozzle 04 and the maximum contour of the cleaning roller brush 02. When the nozzle 04 sprays the cleaning liquid, the sprayed cleaning liquid can form a larger coverage area, thereby covering the cleaning liquid on the cleaning roller brush 02. When cleaning the photovoltaic panel, the liquid required for cleaning the photovoltaic panel is transported to the nozzle 04 through the water delivery component 03, and the nozzle 04 is used to continuously spray the liquid on the rotating cleaning roller brush 02. During the rotation of the cleaning roller brush 02, the wet cleaning roller brush 02 and the surface of the photovoltaic panel are closely polished or rubbed to achieve the purpose of loosening and softening the dirt. During the cleaning process, the nozzle 04 will not spray the liquid directly onto the photovoltaic panel, but onto the cleaning roller brush 02. On the one hand, it can keep the cleaning roller brush 02 moist to facilitate cleaning; on the other hand, it can clean the cleaning roller brush 02 so that fewer impurities stick to the cleaning roller brush 02 to improve the cleaning efficiency.

[0031] In one embodiment, the cleaning roller brush 02 is a bilaterally symmetrical structure as a whole, and the cleaning roller brush 02 includes a cylinder 21 that is rotated and arranged inside the shell 01 along the length direction of the shell 01, and a brush 22 that is arranged on the cylinder 21; the brush 22 is arranged at equal intervals along the circumferential direction of the cylinder 21. Among them, the two ends of the brush 22 are arranged in a straight line without rotation and at equal intervals, and the remaining part is spirally oriented. When the cylinder 21 drives the brush 22 to rotate synchronously, the non-rotating brushes 22 at both ends of the cylinder 21 also rotate synchronously with the cylinder 21, so that the cleaning path forms a better superposition, ensuring that the surface dust of the photovoltaic panel is less and the cleanliness is higher. After the track of the cleaning vehicle contacts the photovoltaic panel, the track of the cleaning vehicle can better fit the photovoltaic panel, so that the friction coefficient between the track and the surface of the photovoltaic panel is larger, and the friction of the track is improved, while improving the running stability of the robot and ensuring better climbing ability. Secondly, during the cleaning process, the cleaning path is a reciprocating type from top to bottom. Due to the effect of gravity, the cleaned impurities and sewage will flow from top to bottom along the surface of the photovoltaic panel. Since the middle part of the brush 22 adopts a spirally opposed structure, the brush 22 can rotate to clean the surface of the photovoltaic panel. Under the external force of the rolling brush bristles, the surface sand, dirt, sewage, etc. are given an initial velocity toward the center line of the cleaning path, and then under the action of gravity, the whole moves in a parabolic trajectory or flows downward, ensuring that the cleaned surface of the photovoltaic panel is not contaminated for the second time.

[0032] Specifically, a driving unit is provided outside the shell 01, and an output end of the driving unit is connected to an input end of the cleaning roller brush 02, so that the driving unit can be used to drive the cleaning roller brush 02 to rotate in an overall circumferential direction.

[0033] In one embodiment, the connectors 11 are evenly distributed along the length direction of the housing 01. The connectors 11 are fastened to the housing 01 by means of the clamping sheet 06 and bolts.

[0034] In one embodiment, a guide groove 41 is provided on the inner wall of the outlet end of the nozzle 04, and the guide groove 41 is distributed in a fan shape. When the nozzle 04 sprays the cleaning liquid, the guide groove 41 can be used to form a fan-shaped spray surface at the outlet of the nozzle 04, and the nozzles 04 arranged in sequence at equal intervals can form a superposition of multiple fan-shaped spray areas to achieve complete coverage of the cleaning roller brush 02. When the nozzle 04 sprays the cleaning liquid, the liquid will directly cover the cleaning roller brush 02, making the cleaning roller brush 02 wet, and the wet cleaning roller brush 02 is used to closely grind or rub the surface of the photovoltaic panel to achieve the purpose of loosening and softening the dirt. When the cleaning roller brush 02 rotates counterclockwise, the liquid will be sprayed downward onto the cleaning roller brush 02 under the action of the nozzle 04. The relative movement of the cleaning liquid and the cleaning roller brush 02 causes the impurities attached to the cleaning roller brush 02 to loosen. Combined with the flow of the cleaning liquid and the rotating centrifugal force of the cleaning roller brush 02, the impurities on the cleaning roller brush 02 can be cleaned away, thereby reducing the amount of impurities attached to the cleaning roller brush 02, avoiding secondary contamination of the photovoltaic panel surface, and thus improving the cleaning efficiency.

[0035] Specifically, the spraying angle of the nozzle 04 can be adjusted according to work needs. The spraying angle is the angle between the nozzle 04 and the vertical direction, and the angle range is 0° to 60°.

[0036] A sensor 05 is installed at the input end of the manifold 32 to detect whether there is cleaning liquid in the water pipe 33.

[0037] The above disclosure is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A photovoltaic cleaning spray device, characterized in that: It includes a housing, a cleaning roller brush, a water delivery component, and a nozzle; The water delivery assembly includes a pump body, a manifold, and a water pipe; the pump body is fixed to the top outside the shell, the manifold is arranged on the outer surface of the shell, the inlet end of the manifold is connected to the outlet end of the pump body, the manifold has at least two outlet ends, the number of the water pipes corresponds to the number of the manifold outlet ends, each water pipe is arranged on the top outside the shell along the length direction of the shell, the top of the shell is provided with a joint connected to the inside of the shell, and the joint is connected to the outlet end of each water pipe; The cleaning roller brush is rotatably arranged inside the shell along the length direction of the shell, and the lower end of the cleaning roller brush extends along the lower end of the shell to clean the photovoltaic panel; The nozzle is installed on the joint so that the nozzle is located obliquely above the cleaning roller brush, and the spraying direction of the nozzle is toward the cleaning roller brush.

2. The photovoltaic cleaning spray device according to claim 1, characterized in that: The cleaning roller brush comprises a cylinder body which is rotatably arranged inside the shell body along the length direction of the shell body, and a brush arranged on the cylinder body; the brushes are arranged at equal intervals along the circumferential direction of the cylinder body.

3. The photovoltaic cleaning spray device according to claim 2 is characterized in that: The two ends of the brush are arranged in a straight line without rotation and at equal distances, and the remaining parts are spirally aligned towards each other.

4. The photovoltaic cleaning spray device according to claim 2, characterized in that: The cleaning roller brush is powered by a driving unit arranged outside the shell.

5. The photovoltaic cleaning spray device according to claim 1 or 2, characterized in that: A guide groove is arranged on the inner wall of the nozzle outlet end, and the guide groove is distributed in a fan shape.

6. The photovoltaic cleaning spray device according to claim 1, characterized in that: The joints are evenly distributed along the length direction of the shell.

7. The photovoltaic cleaning spray device according to claim 6, characterized in that: The joint is fastened to the housing by means of a clamping plate bolt.

8. The photovoltaic cleaning spray device according to claim 1, characterized in that: A sensor is installed at the input end of the manifold to detect whether there is cleaning liquid in the water pipe.

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