High-voltage pulse cleaning mechanism installed on the end of the vehicle-mounted photovoltaic power station cleaning and inspection robot arm

Abstract

The utility model is a high-pressure pulse cleaning mechanism installed at the end of a cleaning and inspection mechanical arm of a vehicle-mounted photovoltaic power station, comprising an annular high-pressure cleaning pipe, an adjustable spherical joint, a high-pressure rotary pulse nozzle, a drain valve, and a water inlet pipe; the annular high-pressure cleaning pipe is installed at the end of the swing cylinder piston rod of the cleaning and inspection mechanical arm, the top of the annular high-pressure cleaning pipe is provided with a plurality of water outlet holes, the bottom is provided with a plurality of water inlet holes, and the narrow sides on both sides are provided with a plurality of drain holes; the adjustable spherical joint is respectively installed at the water outlet hole and the water inlet hole, the waterproof valve is installed at the drain hole, the high-pressure rotary pulse nozzle is installed on the adjustable spherical joint at the water outlet hole, and the water inlet pipe is connected to the adjustable spherical joint at the water inlet hole. The utility model can be installed at the end of an intelligent mechanical arm on a manned or unmanned load-carrying diesel-driven or electric-driven vehicle platform with a water tank, has a simple overall structure, is easy to manufacture, is suitable for cleaning photovoltaic panels of various installation angles, has a large cleaning coverage area, is flexible and convenient to use, and has high cleaning efficiency.

Description

Technical Field

[0001] The utility model relates to the field of capacity-increasing cleaning of photovoltaic panels in photovoltaic power stations, and in particular to a high-voltage pulse cleaning mechanism installed at the end of a cleaning and inspection mechanical arm of a vehicle-mounted photovoltaic power station. Background Art

[0002] Photovoltaic energy construction sites are mostly located in areas with relatively harsh geological climates, with strong winds and sand, which are easy to erode panels. Dust and sand accumulation will reduce the efficiency of photoelectric conversion. NASA research shows that a dust layer of 40g per square meter will reduce the solar energy conversion rate by 40%. Severe local coverage will cause the photovoltaic panel to produce a "hot spot effect", reducing the performance and service life of the photovoltaic module. Therefore, photovoltaic panels need to be periodically scrubbed of attached sand to ensure power generation efficiency, but the on-site conditions bring great challenges to the cleaning work.

[0003] The cleaning operation has the following difficulties:

[0004] Complex operation: Due to the terrain, the installation height and angle of photovoltaic panels are not uniform, and the brush needs to be precisely adjusted during cleaning to avoid damaging the panels;

[0005] Water shortage: There is no tap water pipeline on the project site, and water must be transported and supplied by tank trucks. Cleaning operations should save water as much as possible;

[0006] Large workload: The total area of ​​centralized photovoltaic panels is large, requiring stable and efficient cleaning equipment.

[0007] Currently, the most common cleaning methods are manual cleaning and suction cleaning machine cleaning. However, manual cleaning is inefficient and difficult to manage. The transfer operation of the suction cleaning machine requires re-installation of the track, which has low efficiency, small coverage area and expensive maintenance costs. Summary of the invention

[0008] The utility model aims to solve the deficiencies of the prior art and provides a high-voltage pulse cleaning mechanism installed at the end of a cleaning and inspection mechanical arm of a vehicle-mounted photovoltaic power station.

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-pressure pulse cleaning mechanism installed at the end of a cleaning and inspection mechanical arm of a vehicle-mounted photovoltaic power station comprises an annular high-pressure cleaning pipe, an adjustable spherical joint, a high-pressure rotating pulse nozzle, a drain valve, and a water inlet pipe;

[0010] The annular high-pressure cleaning pipe is installed at the end of the piston rod of the swing cylinder of the cleaning and inspection mechanical arm. The top of the annular high-pressure cleaning pipe is provided with a plurality of water outlet holes, the bottom is provided with a plurality of water inlet holes, and the narrow sides on both sides are provided with a plurality of water discharge holes;

[0011] The adjustable ball joints are respectively installed at the water outlet and the water inlet, the waterproof valve is installed at the drain hole, the high-pressure rotary pulse nozzle is installed on the adjustable ball joint at the water outlet, and the water inlet pipe is connected to the adjustable ball joint at the water inlet;

[0012] The high-pressure rotary pulse nozzle includes a nozzle body, a rotary nozzle that rotates conically in the nozzle body, and a water inlet connector installed on the top of the nozzle body. The water inlet connector is fixedly connected to an adjustable spherical joint. The ball socket of the nozzle body water outlet and the rotary nozzle ball head realize dynamic sealing. The inlet of the water inlet connector is connected to an annular high-pressure cleaning pipe through an adjustable spherical joint. A swirl water inlet channel connected to the inside of the nozzle body is provided at the water outlet, and a plurality of through holes are provided on the side wall of the rotary nozzle.

[0013] In particular, the adjustable spherical joint includes a ball socket, a ball socket clamping nut and a ball head connector. The ball socket is installed on the corresponding water outlet and water inlet, the ball socket clamping nut is threadedly connected to the ball socket, and the ball head of the ball head connector is compressed and sealed in the ball socket by the ball socket clamping nut. The ball socket and the ball head connector are provided with docking high-pressure flow channels, and the ball head connector is connected to the water inlet connector at one end away from the ball head.

[0014] In particular, the annular high-pressure cleaning pipe is made of a stainless steel pipe or an aluminum alloy pipe with a pressure resistance of 25MPa, which is bent and butt-welded into a rectangular ring.

[0015] Particularly, the top of the rotating nozzle rotates along the bottom edge of the water inlet connector.

[0016] Particularly, the water supply pressure of the water inlet pipe is 5-15MPa.

[0017] Particularly, the rotational spraying angle of the high pressure rotary pulse nozzle is 15°-40°.

[0018] In particular, a plurality of reinforcing connecting rods are arranged at the bottom of the annular high-pressure cleaning pipe.

[0019] The beneficial effects of the utility model are:

[0020] The utility model can be installed on the arm end of an intelligent mechanical arm on a manned or unmanned load-carrying diesel-driven or electric-driven vehicle platform with a water tank to clean and remove snow from the surface of photovoltaic panels in photovoltaic power stations. It is mainly composed of an annular high-pressure cleaning pipe, an adjustable spherical joint, and a high-pressure rotary pulse nozzle. The overall structure is simple and easy to manufacture. It is suitable for cleaning photovoltaic panels at various installation angles and is suitable for installation on the arm end of various vehicle-mounted cleaning arms. It has a large cleaning coverage area, is flexible and convenient to use, and has high cleaning efficiency.

[0021] By adopting a rotating pulse jet method, water can be sprayed at a higher speed and force, so that a smaller amount of water can achieve a good cleaning effect, thereby reducing the overall water consumption. The rotary nozzle can change the direction and distribution pattern of the water flow through the rotation of the internal rotating nozzle, achieving multi-angle and all-round spray coverage, which helps to disperse the water flow more evenly, improve flushing efficiency, reduce local over-spraying due to concentrated water flow and insufficient cleaning of other areas, thereby saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the installation of the utility model and the mechanical arm;

[0023] Figure 2 It is a schematic diagram of the structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the spray range of the high-pressure rotary pulse nozzle of the utility model;

[0025] Figure 4 This is a schematic diagram of the positions of the water inlet, water outlet, and water drain hole of the utility model;

[0026] Figure 5 It is a schematic diagram of the connection between the high-pressure rotary pulse nozzle and the adjustable spherical joint of the utility model;

[0027] Figure 6 This is a schematic diagram of the installation of the utility model and the cleaning vehicle;

[0028] In the figure: 1-annular high-pressure cleaning pipe; 101-water outlet; 102-water inlet; 103-drain hole; 104-reinforced connecting rod; 2-adjustable ball joint; 201-ball socket seat; 202-ball socket compression nut; 203-ball head connector; 3-high-pressure rotary pulse nozzle; 301-nozzle body; 302-rotating nozzle; 303-water inlet connector; 304-swirl water inlet channel;

[0029] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0031] like Figure 1-Figure 6 As shown, a high-pressure pulse cleaning mechanism installed at the end of a cleaning and inspection mechanical arm of a vehicle-mounted photovoltaic power station comprises an annular high-pressure cleaning pipe 1, an adjustable spherical joint 2, a high-pressure rotating pulse nozzle 3, a drain valve, and a water inlet pipe;

[0032] The annular high-pressure cleaning pipe 1 is installed at the end of the piston rod of the swing cylinder of the cleaning and inspection robot arm. Specifically, a connecting seat can be installed at the bottom of the annular high-pressure cleaning pipe 1, and then installed at the end of the swing cylinder through the connecting seat;

[0033] The annular high-pressure cleaning pipe 1 is made of a 25MPa pressure-resistant stainless steel pipe or aluminum alloy pipe that is bent and butt-welded into a rectangular ring. The top of the annular high-pressure cleaning pipe 1 is provided with a plurality of water outlet holes 101, the bottom is provided with a plurality of water inlet holes 102, the narrow sides of both sides are provided with a plurality of water discharge holes 103, and the bottom of the annular high-pressure cleaning pipe 1 is provided with a plurality of reinforcing connecting rods 104;

[0034] The adjustable ball joint 2 is installed at the water outlet 101 and the water inlet 102 respectively, the waterproof valve is installed at the drain hole 103, the high-pressure rotary pulse nozzle 3 is installed on the adjustable ball joint 2 at the water outlet 101, the water inlet pipe is connected to the adjustable ball joint 2 at the water inlet 102, and the water supply pressure of the water inlet pipe is 5-15MPa;

[0035] The high-pressure rotary pulse nozzle 3 comprises a nozzle body 301, a rotary nozzle 302 that rotates conically in the nozzle body 301, and a water inlet connector 303 installed on the top of the nozzle body 301. The water inlet connector 303 is fixedly connected to the adjustable spherical joint 2. The ball socket of the nozzle body 301 water outlet and the ball head of the rotary nozzle 302 realize dynamic sealing. The inlet of the water inlet connector 303 is connected to the annular high-pressure cleaning pipe 1 through the adjustable spherical joint 2. A swirl water inlet channel 304 that is connected to the inside of the nozzle body 301 is provided at the water outlet. A plurality of through holes are provided on the side wall of the rotary nozzle 302. The top of the rotary nozzle 302 rotates along the bottom edge of the water inlet connector 303. The rotary spray angle of the high-pressure rotary pulse nozzle 3 is 15°-40°.

[0036] The adjustable spherical joint 2 includes a ball socket 201, a ball socket clamping nut 202 and a ball head connector 203. The ball socket 201 is installed on the corresponding water outlet 101 and water inlet 102. The ball socket clamping nut 202 is threadedly connected to the ball socket 201, and the ball head of the ball head connector 203 is compressed and sealed in the ball socket 201 by the ball socket clamping nut 202. The ball socket 201 and the ball head connector 203 are provided with docking high-pressure flow channels, and the ball head connector 203 is connected to the water inlet connector 303 at one end away from the ball head.

[0037] When the utility model is working, the angle of the high-pressure rotary pulse nozzle 3 is adjusted as needed, and the vehicle is driven to the photovoltaic panel to be cleaned. The water inlet pipe fills the annular high-pressure cleaning pipe 1 with water, and the water enters the water outlet 101, the adjustable spherical joint 2, and the water inlet connector 303 in sequence, and then is swirl-sprayed out through the swirl water inlet channel 304. The rotary motion of the rotary nozzle 302 is driven by the water inlet swirl created by the swirl water inlet channel 304, and the water inside the nozzle body 301 enters the rotary nozzle 302 through the through hole, and then is sprayed out from the center hole of the rotary nozzle 302 to form a rotary pulse jet, thereby cleaning the surface of the photovoltaic panel; after cleaning, the water in the annular high-pressure cleaning pipe 1 can be discharged through the drain valve; the annular high-pressure cleaning pipe 1 can adjust the angle through the swing cylinder, so as to facilitate the cleaning of photovoltaic panels with different installation angles.

[0038] The utility model can be installed on the arm end of an intelligent mechanical arm on a manned or unmanned load-carrying diesel-driven or electric-driven vehicle platform with a water tank to clean and remove snow from the surface of photovoltaic panels in photovoltaic power stations. The overall structure is simple and easy to manufacture. It is suitable for cleaning photovoltaic panels at various installation angles and is suitable for installation on the arm end of various vehicle-mounted cleaning arms. It has a large cleaning coverage area, is flexible and convenient to use, and has high cleaning efficiency.

[0039] By adopting a rotating pulse jet method, water can be sprayed at a higher speed and force, so that a smaller amount of water can achieve a good cleaning effect, thereby reducing the overall water consumption. The rotary nozzle can change the direction and distribution pattern of the water flow through the rotation of the internal rotating nozzle 302, and achieve multi-angle and all-round spray coverage, which helps to disperse the water flow more evenly, improve flushing efficiency, reduce local over-spraying due to concentrated water flow and insufficient cleaning of other areas, thereby saving water resources.

[0040] In the description of the present invention, it should 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 a limitation on the present invention.

[0041] 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.

[0042] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or it is directly applied to other occasions without improvement, it is within the protection scope of the utility model.

Claims

1. The high-voltage pulse cleaning mechanism installed at the end of the vehicle-mounted photovoltaic power station cleaning and inspection mechanical arm is characterized by: It comprises an annular high-pressure cleaning pipe (1), an adjustable spherical joint (2), a high-pressure rotary pulse nozzle (3), a drain valve, and a water inlet pipe; The annular high-pressure cleaning pipe (1) is installed at the end of the piston rod of the swing cylinder of the cleaning and inspection mechanical arm. The top of the annular high-pressure cleaning pipe (1) is provided with a plurality of water outlet holes (101), the bottom is provided with a plurality of water inlet holes (102), and the narrow sides on both sides are provided with a plurality of water discharge holes (103); The adjustable spherical joint (2) is respectively installed at the water outlet (101) and the water inlet (102), the waterproof valve is installed at the water discharge hole (103), the high-pressure rotary pulse nozzle (3) is installed on the adjustable spherical joint (2) at the water outlet (101), and the water inlet pipe is connected to the adjustable spherical joint (2) at the water inlet (102); The high-pressure rotary pulse nozzle (3) comprises a nozzle body (301), a rotary nozzle (302) that rotates in a conical shape in the nozzle body (301), and a water inlet connector (303) mounted on the top of the nozzle body (301). The water inlet connector (303) is fixedly connected to an adjustable spherical joint (2). The ball socket of the nozzle body (301) and the ball head of the rotary nozzle (302) realize dynamic sealing. The inlet of the water inlet connector (303) is connected to an annular high-pressure cleaning pipe (1) through the adjustable spherical joint (2). A swirl water inlet channel (304) that is connected to the inside of the nozzle body (301) is provided at the water outlet. A plurality of through holes are provided on the side wall of the rotary nozzle (302).

2. The high-voltage pulse cleaning mechanism installed at the end of the vehicle-mounted photovoltaic power station cleaning and inspection mechanical arm according to claim 1 is characterized in that: The adjustable spherical joint (2) comprises a ball socket (201), a ball socket clamping nut (202) and a ball head connector (203); the ball socket (201) is mounted on the corresponding water outlet (101) and water inlet (102); the ball socket clamping nut (202) is threadedly connected to the ball socket (201); and the ball head of the ball head connector (203) is compressed and sealed in the ball socket (201) by the ball socket clamping nut (202); the ball socket (201) and the ball head connector (203) are provided with butt-jointed high-pressure flow channels; and the ball head connector (203) is connected to a water inlet connector (303) at one end away from the ball head.

3. The high-voltage pulse cleaning mechanism installed at the end of the vehicle-mounted photovoltaic power station cleaning and inspection mechanical arm according to claim 1 is characterized in that: The annular high-pressure cleaning pipe (1) is made of a stainless steel pipe or an aluminum alloy pipe with a pressure resistance of 25 MPa, which is bent and butt-welded into a rectangular ring.

4. The high-voltage pulse cleaning mechanism installed at the end of the vehicle-mounted photovoltaic power station cleaning and inspection mechanical arm according to claim 1 is characterized in that: The top of the rotating nozzle (302) rotates along the bottom edge of the water inlet connector (303).

5. The high-voltage pulse cleaning mechanism installed at the end of the vehicle-mounted photovoltaic power station cleaning and inspection mechanical arm according to claim 1 is characterized in that: The water supply pressure of the water inlet pipe is 5-15MPa.

6. The high-voltage pulse cleaning mechanism installed at the end of the vehicle-mounted photovoltaic power station cleaning and inspection mechanical arm according to claim 1 is characterized in that: The rotational spraying angle of the high-pressure rotational pulse nozzle (3) is 15°-40°.

7. The high-voltage pulse cleaning mechanism installed at the end of the vehicle-mounted photovoltaic power station cleaning and inspection mechanical arm according to claim 1 is characterized in that: A plurality of reinforcing connecting rods (104) are provided at the bottom of the annular high-pressure cleaning pipe (1).

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