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CN-122026794-A - Cleaning system for top surface of overwater photovoltaic array and use method

CN122026794ACN 122026794 ACN122026794 ACN 122026794ACN-122026794-A

Abstract

The utility model provides a cleaning system of photovoltaic array top surface on water, including cleaning dish, center pin and inclined slide, wherein, the upper end of cleaning the central pin of dish middle part male is connected with the inner of the first to third tractive rope of mutual partition, and the lateral part of cleaning dish is connected with the inner of fourth tractive rope, and the bottom of cleaning dish contacts with photovoltaic array's top surface through a plurality of cleaning brushes, and photovoltaic array's side links to each other with inclined slide's top, and inclined slide's bottom is located under the surface of water. When the cleaning device is used, one to four traction ropes are tightened to fix the position of the cleaning disc on the top surface of the photovoltaic array, and meanwhile, on the basis of the tightening state, the extraction length of each traction rope is changed through rope unwinding or rope winding operation respectively so as to drive the cleaning disc to move on the top surface of the photovoltaic array, and the cleaning brush cleans the top surface of the photovoltaic array along a moving path. The design is not only difficult to slide off when cleaning the top surface of the water photovoltaic panel array, but also can save water resources and improve the light weight effect.

Inventors

  • BI YAN

Assignees

  • 武汉纺织大学

Dates

Publication Date
20260512
Application Date
20260318

Claims (10)

  1. 1. The cleaning system for the top surface of the photovoltaic array on water is characterized by comprising a cleaning disc (2), a central shaft (3) and an inclined slideway (4), wherein the central shaft (3) is inserted into the middle of the cleaning disc (2), the upper end of the central shaft (3) is connected with the inner ends of a first traction rope (31), a second traction rope (32) and a third traction rope (33) which are separated from each other, the side part of the cleaning disc (2) is connected with the inner end of a fourth traction rope (34), the outer ends of the first traction rope (31), the second traction rope (32), the third traction rope (34) and the fourth traction rope (34) extend out of the top surface of the photovoltaic array (1), and the bottom of the cleaning disc (2) is connected with the tops of a plurality of cleaning brushes (21), and the bottom of the cleaning brushes (21) is contacted with the top surface of the photovoltaic array (1). The side of the photovoltaic array (1) is communicated with the top end of the inclined slide way (4), and the bottom end of the inclined slide way (4) extends downwards in an inclined manner and extends to the position below the water surface (10).
  2. 2. The system for cleaning the top surface of the water photovoltaic array according to claim 1, wherein the outer ends of the first traction rope (31), the second traction rope (32), the third traction rope (33) and the fourth traction rope (34) are respectively wound on one winch (35), and all the winches (35) are positioned outside the top surface of the photovoltaic array (1).
  3. 3. A cleaning system for the top surface of a photovoltaic array on water according to claim 1 or 2, characterized in that the cleaning disc (2) comprises a coaxial top disc body (22) and a bottom disc body (23), the bottom surface of the top disc body (22) is connected with the top surface of the bottom disc body (23), and the bottom surface of the bottom disc body (23) is connected with the tops of all cleaning brushes (21); A top groove (24) with an upward opening is formed in the top disc body (22), a central hole (25) penetrating through the top disc body (22) and the bottom disc body (23) is formed in the middle of the top groove (24) so as to install the central shaft (3), a coil spring (5) is sleeved outside the central shaft (3), an inner winding end (51) of the coil spring (5) is fixedly connected with a side wall of the central shaft (3), an outer winding end (52) of the coil spring (5) is connected with a bayonet (242) formed in an inner groove wall (241) of the top groove (24) in an inserting mode, and the coil spring (5) is integrally embedded into the top groove (24); the side wall of the top disc body (22) is provided with a concave rope ring groove (221), and a side groove surface (222) of the rope ring groove (221) is connected with the inner end of a fourth traction rope (34).
  4. 4. A cleaning system for the topside of a waterborne photovoltaic array according to claim 3, wherein the vortex-like flexible water absorbing bodies (54) are embedded in the corresponding vortex-like gaps (53) in the coil springs (5).
  5. 5. The cleaning system for the top surface of the waterborne photovoltaic array of claim 4, wherein a plurality of top water outlets (243) are formed in the bottom surface of the top groove (24) close to the inner groove wall (241), and the top water outlets (243) are communicated with the bottom water outlets (231) formed in the bottom surface of the chassis body (23) in a one-to-one correspondence manner.
  6. 6. The cleaning system for the top surface of the water photovoltaic array of claim 3, wherein the upper end of the central shaft (3) is respectively connected with the inner ends of a first cross rod (311), a second cross rod (321), a third cross rod (331) and a fourth cross rod (341) which are arranged in a mutually separated mode, the outer ends of the first cross rod (311), the second cross rod (321) and the third cross rod (331) are respectively correspondingly connected with the inner ends of a first traction rope (31), a second traction rope (32) and a third traction rope (33), the outer end of the fourth cross rod (341) is connected with the top end of a limiting vertical rod (36), limiting blocks (223) arranged on the side walls of the top disc body (22) are in limiting fit with the lower edges of the bottom ends of the limiting vertical rods (36), and the limiting blocks (223) are higher than the rope ring grooves (221).
  7. 7. The system for cleaning the top surface of the photovoltaic array on water according to claim 1 or 2, wherein limiting edges (41) extending upwards are respectively arranged on two sides of the top surface of the inclined slide way (4).
  8. 8. The cleaning system for the top surface of the photovoltaic array on water according to claim 1 or2, wherein the cleaning brushes (21) are distributed in a circumferential array at the bottom of the cleaning disc (2), and an inner brush ring (211), a middle brush ring (212) and an outer brush ring (213) which are mutually separated are sequentially formed from inside to outside; In the inner brush ring (211), the middle brush ring (212) and the outer brush ring (213), each brush ring is uniformly arranged by a plurality of cleaning brushes (21) along the same circumference in a mutually separated mode.
  9. 9. A method of using the above-water photovoltaic array top surface cleaning system of claim 1, 2 or 3, comprising the steps of: Firstly, placing a cleaning disc (2) on the top surface of a photovoltaic array (1), enabling a cleaning brush (21) at the bottom of the cleaning disc (2) to be in contact with the top surface of the photovoltaic array (1), tensioning a first traction rope (31), a second traction rope (32), a third traction rope (33) and a fourth traction rope (34) through the outer ends of the traction ropes so as to tighten the traction ropes, fixing the position of the cleaning disc (2), then respectively carrying out rope unwinding or winding operation on the traction ropes so as to change the extraction length of the traction ropes on the photovoltaic array (1), driving the cleaning disc (2) to move on the top surface of the photovoltaic array (1), and when the cleaning disc (2) moves to a preset position, tensioning the traction ropes through the outer ends of the traction ropes so as to tighten the traction ropes, fixing the position of the cleaning disc (2), and sequentially circulating so that the cleaning disc (2) continuously moves on the top surface of the photovoltaic array (1), thereby cleaning the top surface of the photovoltaic array (1); In the whole cleaning process, when the cleaning disc (2) is required to be in contact with water, the rope unwinding or winding operation is carried out on each traction rope respectively so as to change the extraction length of each traction rope on the photovoltaic array (1), thereby driving the cleaning disc (2) to move on the top surface of the photovoltaic array (1) until the traction rope is close to the top end of the inclined slide way (4), changing the extraction length of each traction rope so that the cleaning disc (2) slides downwards along the inclined slide way (4) under the action of gravity of the traction rope until the cleaning disc is immersed in the water (10), and controlling the extraction length of each traction rope in the whole sliding process so as to control the sliding speed and the immersion depth of the cleaning disc (2).
  10. 10. The method of using the cleaning system for the top surface of the photovoltaic array on water according to claim 9, wherein: The cleaning disc (2) comprises a coaxial top disc body (22) and a bottom disc body (23), wherein the bottom surface of the top disc body (22) is connected with the top surface of the bottom disc body (23), the bottom surface of the bottom disc body (23) is connected with the tops of all cleaning brushes (21), a top groove (24) with an upward opening is formed in the top disc body (22), a central hole (25) penetrating through the top disc body (22) and the bottom disc body (23) is formed in the middle of the top groove (24) so as to install a central shaft (3), a coil spring (5) is sleeved outside the central shaft (3), an inner winding end (51) of the coil spring (5) is fixedly connected with the side wall of the central shaft (3), an outer winding end (52) of the coil spring (5) is connected with a bayonet (242) formed in an inner groove wall (24) of the top groove (24) in an inserted mode, the coil spring (5) is integrally embedded in the top groove (24), a concave rope ring groove (221) is formed in the middle of the top disc body (22), and the inner end surface (221) of the rope ring groove (221) is connected with a four-shaped pulling rope groove (34); Before the first movement of the cleaning disc (2), at least one circumferential four-number traction rope (34) is wound in the rope ring groove (221), in the subsequent movement process, the rope releasing or winding operation of the four-number traction rope (34) is carried out on the basis of keeping the winding, after the cleaning disc (2) moves to a preset position and the position of the cleaning disc (2) is fixed, the first traction rope (31), the second traction rope (32) and the third traction rope (33) are continuously tensioned, the rope winding force of the four-number traction rope (34) is increased again, the four-number traction rope (34) is outwards pulled out to wind the four-number traction rope (34) wound in the rope ring groove (221), so that the top disc body (22) and the bottom disc body (23) are driven to rotate around the central shaft (3), then the top disc body (22) is driven to perform winding rotation through the bayonet (242), after the four-number traction rope (34) to be pulled to a preset length, the four-number traction rope (34) is further released, so that the contracted (5) is relaxed, the top disc body (22) is driven to wind the four-number traction rope reversely, and the winding of the four-number traction rope (34) is completed at least once, and the winding of the four-number traction rope is completed in the groove (221), and the top disc (23) is completed, and the winding is completed at least once, and the winding of the top disc (22) is completed, and the winding is completed The coil spring (5) and the chassis body (23) rotate reciprocally, and meanwhile, the chassis body (23) drives the cleaning brush (21) at the bottom of the chassis body to clean the top surface of the photovoltaic array (1) contacted with the cleaning brush for one time; the number of the reciprocating rotation is more than or equal to one.

Description

Cleaning system for top surface of overwater photovoltaic array and use method Technical Field The invention relates to a cleaning design of a water photovoltaic array, belongs to the field of cleaning of photovoltaic arrays, and particularly relates to a cleaning system of the top surface of the water photovoltaic array and a using method of the cleaning system. Background The 'fishing light complementation' is a comprehensive utilization mode combining fishery cultivation and photovoltaic power generation, and the three-dimensional development of 'upper power generation and lower fish cultivation' is realized by erecting a photovoltaic panel array above a water area such as a fishpond, a beach and the like. The mode can efficiently utilize the land and water area space and improve the economic benefit of unit area, specifically, the photovoltaic panel provides shading for the culture water body, can reduce the water temperature, reduce the excessive propagation of algae, is suitable for the growth of partial aquatic products, reduces the carbon emission and is beneficial to improving the culture environment, and meanwhile, the photovoltaic power generation can generate clean power to provide clean energy (such as oxygen supply equipment power) for the culture, thereby reducing the fishery cost and having remarkable ecological and economic benefits. Since 2017, the mode has been popularized in Zhejiang, jiangsu, hebei, liaoning and other places, and innovative practices such as stereoscopic layering and right determination of sea areas are developed, and the mode becomes a green development mode for promoting village plain and energy transformation. However, in the application process, the photovoltaic array is arranged above the water surface, but not on land, so that dirt and dust on the top surface of the photovoltaic array is not beneficial to manual cleaning and maintenance, and if the existing walking cleaning robot is adopted to clean the surface of the photovoltaic array, the robot easily slides down (the photovoltaic array is generally obliquely arranged), so that the robot falls into the water, the robot can be damaged, and the water environment can be polluted. The invention discloses a cleaning robot, which belongs to the technical field of maintenance of photovoltaic array panels and comprises a frame, a swinging frame, a rotating assembly, a plurality of travelling mechanisms and cleaning pieces, wherein the swinging frame is rotatably arranged on the frame, side guide wheels are arranged on the swinging frame and are rotatably connected with the swinging frame, the rotating assembly is rotatably connected with the frame, the rotating axis of the rotating assembly is parallel to the length direction of the frame, the swinging frame is connected with the rotating assembly, at least one end of the cleaning piece is connected with the rotating assembly, the cleaning piece can rotate relative to the frame along with the rotating assembly, and the cleaning piece keeps contact with the surface of the photovoltaic array panel. Although the cleaning robot can swing through the cleaning piece in the cleaning process to adjust the distance between the cleaning piece and the photovoltaic array panel, so that the cleaning piece and the panel surface of the photovoltaic array panel keep good contact, and the cleaning piece is prevented from bumping onto the photovoltaic array panel to cause movement clamping stagnation, the defect that the cleaning piece is easy to slide down can not be overcome if the cleaning robot is applied to the photovoltaic panel array on water. The disclosure of this background section is only intended to increase the understanding of the general background of the application and should not be taken as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art. Disclosure of Invention The invention aims to overcome the defect and the problem that a cleaning device is easy to slide when the top surface of a water photovoltaic panel array is cleaned in the prior art, and provides a cleaning system for the top surface of the water photovoltaic array, and a using method of the cleaning system. The cleaning system comprises a cleaning disc, a central shaft and an inclined slideway, wherein the central shaft is inserted into the middle of the cleaning disc, the upper end of the central shaft is connected with the inner ends of a first traction rope, a second traction rope and a third traction rope which are mutually separated, the side part of the cleaning disc is connected with the inner end of the fourth traction rope, the outer ends of the first traction rope, the second traction rope, the third traction rope and the fourth traction rope extend out of the top surface of the photovoltaic array, the bottom of the cleaning disc is connected with the tops of a plurality of cleaning brushes, and the botto