High-efficiency dust removal device for photovoltaic power station and use method of high-efficiency dust removal device

Abstract

The invention provides a photovoltaic power station efficient dust removal device and a use method thereof.The photovoltaic power station efficient dust removal device comprises an air vibration system and a mechanical sweeping system, the air vibration system is used for generating low-frequency sound waves to loosen dust on the surface of a photovoltaic module, and the mechanical sweeping system removes the loose dust through up-down movement of a roller brush. The air vibration system serves as a core, dust adhesive force is reduced through the sound wave effect, comprehensive cleaning is achieved in cooperation with mechanical sweeping, the air vibration and mechanical sweeping system is combined, air serves as a main medium, meanwhile, the sound wave vibration and mechanical rolling brush cleaning functions are achieved, efficient dust removal is achieved, and the dust removal efficiency is improved. The problems of resource waste, low efficiency and the like in the dust removal process of the photovoltaic power station are innovatively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic component cleaning equipment, and in particular to a photovoltaic power station high-efficiency dust removal device and a use method thereof. Background Art

[0002] With the rapid deployment of photovoltaic power stations in arid and desert areas, dust pollution has become an important reason for the decline in the power generation efficiency of photovoltaic modules. In arid and windy environments, dust attached to the surface of photovoltaic modules will reduce light transmittance, hinder the absorption of solar energy, and cause a significant decrease in power generation.

[0003] The prevalence of photovoltaic power stations in deserts and Gobi regions has made efficient dust removal technology one of the key technologies to improve the power generation efficiency of photovoltaic power stations. Traditional dust removal methods (such as natural dust fall, manual cleaning, high-pressure water washing, robotic dust removal, etc.) have problems such as uncontrollable, high water consumption, and high cost. Natural dust removal depends on natural conditions such as rainfall and wind, and the effect is uncontrollable, and it is not applicable in arid areas. Manual cleaning is labor-intensive, time-consuming and labor-intensive, and has high long-term operating costs. High-pressure water washing requires a large amount of water, and water supply cannot be guaranteed in arid areas. Robotic dust removal is expensive, the technology is complex, and the equipment is easily damaged. The market urgently needs a new type of dust removal device that is efficient, economical, and environmentally friendly. Summary of the invention

[0004] The purpose of the present invention is to provide a photovoltaic power station high-efficiency dust removal device and its use method, which utilizes the sound waves generated by the air vibration system to destroy the dust adhesion and realizes comprehensive cleaning through a mechanical cleaning system, and has the characteristics of low cost, low energy consumption, simple structure, etc.

[0005] According to one purpose of the present invention, the present invention provides a high-efficiency dust removal device for a photovoltaic power station, including an air vibration system and a mechanical cleaning system, wherein the air vibration system is used to generate low-frequency sound waves to loosen dust on the surface of photovoltaic components, and the mechanical cleaning system removes loose dust by moving a roller brush up and down.

[0006] Furthermore, the air vibration system includes an air compressor, an air tank and a diaphragm vibration assembly, the air tank is connected to the air compressor, and the diaphragm vibration assembly is connected to the air tank via an air pipeline.

[0007] Furthermore, the diaphragm vibration assembly includes a gas suction port, a diaphragm, a generator and a horn. The gas suction port is arranged at the end of the gas pipeline. The horn is connected to the gas suction port. The diaphragm and the generator are arranged at the rear end of the horn.

[0008] Furthermore, a solenoid valve is provided on the gas transmission pipeline.

[0009] Furthermore, the speaker is arranged on the top of the photovoltaic module.

[0010] Furthermore, the mechanical cleaning system includes a fan, a gear box, a transmission shaft, a wire rope and a roller brush, the gear box is connected to the fan, the transmission shaft is connected to the gear box, a wire rope is wound around the transmission shaft, and the wire rope is connected to the roller brush.

[0011] Furthermore, a clutch is provided between the transmission shaft and the gear box, and the clutch controls the transmission shaft and the gear box to be disconnected or connected.

[0012] According to another object of the present invention, the present invention provides a method for using the above-mentioned photovoltaic power station high-efficiency dust removal device, comprising the following steps:

[0013] The compressed air generated by the air compressor is transported to the diaphragm through the air pipeline, and is converted into low-frequency sound waves through the self-excited oscillation in the generator, and acts on the surface of the photovoltaic module through the speaker;

[0014] The fan drives the gear box to operate. The rotational power generated by the fan is transmitted to the drive shaft through the gear box. The roller brush is driven up and down by the wire rope, and the friction between the bristles and the surface of the photovoltaic module is used to thoroughly remove the dust.

[0015] Furthermore, during the ascent of the roller brush, the surface of the photovoltaic module is cleaned; the roller brush moves upward to clean the surface of the photovoltaic module; when reaching the top, the clutch controls the drive shaft and the gear box to disconnect, and the roller brush naturally slides down by gravity to complete the cleaning action.

[0016] Furthermore, the air vibration system works in conjunction with the mechanical cleaning system, where the vibration system loosens the dust which is then completely removed by the cleaning system.

[0017] The technical solution of the present invention is that the efficient dust removal device takes the air vibration system as the core, reduces the dust adhesion through the action of sound waves, and then cooperates with mechanical cleaning to achieve comprehensive cleaning. By combining the air vibration and mechanical cleaning systems, air is used as the main medium, and both the sound wave vibration and mechanical roller brush cleaning functions are combined to achieve efficient dust removal, innovatively solving the problems of resource waste and low efficiency in the dust removal process of photovoltaic power stations.

[0018] BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a structural schematic diagram of an embodiment of the present invention;

[0020] Figure 2 It is a structural schematic diagram of a diaphragm vibration assembly according to an embodiment of the present invention;

[0021] In the figure: 1. Air compressor; 2. Air storage tank; 3. Solenoid valve; 4. Gas pipeline; 5. Gas suction port; 6. Diaphragm; 7. Generator; 8. Speaker; 9. Photovoltaic module; 10. Connector; 11. Fan; 12. Gear box; 13. Drive shaft; 14. Wire rope; 15. Roller brush. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] 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" 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 limiting the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1

[0026] like Figure 1-Figure 2 As shown,

[0027] A high-efficiency dust removal device for a photovoltaic power station, comprising an air vibration system and a mechanical cleaning system, wherein:

[0028] The air vibration system includes an air compressor 1, an air storage tank 2, an air pipeline 4 and a diaphragm vibration assembly, specifically:

[0029] The air compressor 1 is used to generate high-pressure air, and the air storage tank 2 is connected to the air compressor 1. The air storage tank 2 is used to store compressed air to ensure stable airflow;

[0030] One end of the gas pipeline 4 is connected to the gas storage tank 2, and the other end of the gas pipeline 4 is connected to the diaphragm vibration components respectively.

[0031] The diaphragm vibration assembly includes a plurality of speakers 8 , which are evenly arranged on the photovoltaic assembly 9 . The gas pipeline 4 is used to transport the high-pressure gas in the gas storage tank 2 to the speakers 8 .

[0032] A solenoid valve 3 is provided on the gas transmission pipeline 4, and the solenoid valve 3 is used to regulate the flow direction and flow rate of the compressed air, control the on and off of the compressed air, and accurately adjust the operation of the system.

[0033] A gas inlet 5 is provided at the end of the horn 8, a diaphragm 6 and a generator 7 are provided at the gas inlet 5, and the gas inlet 5 is used to guide air into the diaphragm vibration assembly;

[0034] The diaphragm 6 and the generator 7 convert the air vibration into low-frequency sound waves; the speaker 8 propagates the sound waves to the surface of the photovoltaic module in the form of spherical longitudinal waves, destroying the adhesion of dust. The speaker 8 is fixed to the photovoltaic module 9 through the joint 10.

[0035] The mechanical cleaning system includes a fan 11, a gear box 12, a transmission shaft 13, a wire rope 14 and a roller brush 15. The fan 11 uses natural wind energy or external energy to provide mechanical power. The gear box 12 is connected to the fan 11, and the gear box 12 converts the vertical rotation of the fan 11 into an axial rotation to drive the transmission shaft. The transmission shaft 13 is connected to the gear box 12, and a wire rope 14 is wound around the transmission shaft 13. The wire rope 14 is connected to the roller brush 15, and the roller brush 15 is driven to reciprocate up and down through the transmission shaft 13 and the wire rope 14, and the dust on the surface of the component is cleaned by friction.

[0036] Specifically, a clutch is provided between the transmission shaft 13 and the gear box 12. When the roller brush 15 moves upward to the top of the photovoltaic module, the clutch controls the transmission shaft 13 and the gear box 12 to be disconnected, and the roller brush 15 naturally slides down by gravity to complete the cleaning action. Then, when the roller brush 15 falls to the bottom, the clutch controls the transmission shaft 13 and the gear box 12 to be connected again, thereby cyclically controlling the connection or disconnection of the transmission shaft 13 and the gear box 12.

[0037] In order to facilitate the detection of the position of the roller brush 15, a position sensor is provided on the roller brush 15. The position of the roller brush 15 is detected by the position sensor, so that the control system can control the action of the clutch.

[0038] When the present invention is used:

[0039] (1) Air vibration cleaning

[0040] The high-pressure air generated by the air compressor 1 is stabilized by the air storage tank 2, and then flows into the diaphragm vibration component through the air pipeline 4, and the potential energy is converted into low-frequency sound waves through self-excited oscillation. The sound waves act on the surface of the photovoltaic module in the form of spherical longitudinal waves through the speaker 8, causing the dust structure to fatigue and loosen, providing convenience for subsequent cleaning.

[0041] (2) Mechanical cleaning and dust removal

[0042] The fan 11 drives the gear box 12 to operate. The rotational power generated by the fan 11 is transmitted to the transmission shaft 13 through the gear box 12, and further drives the roller brush 15 to move up and down through the wire rope 14, and the dust is thoroughly removed by the friction between the bristles and the surface of the photovoltaic module. The roller brush 15 cleans the surface of the photovoltaic module when it rises; the roller brush 15 moves upward to clean the surface of the photovoltaic module; when it reaches the top, it naturally slides down due to gravity to complete the cleaning action.

[0043] In this embodiment, compressed air is delivered to the diaphragm and the generator through a pipeline at a pressure of 0.4-0.6Mpa. In the generator, the air is converted into low-frequency sound waves (spherical longitudinal waves) through vibration. The sound waves diffuse to the surface of the photovoltaic module through the horn, causing fatigue and loosening of the dust microstructure, reducing the dust adhesion strength, and facilitating subsequent cleaning.

[0044] The invention takes advantage of the vibration system to efficiently remove dust adhesion: under the action of sound waves, the dust structure produces fatigue damage, which enhances the ease of shedding. It saves water resources and does not need to use water resources, which is particularly suitable for arid areas. The operating cost is low, air is used as the medium, and the energy cost is low.

[0045] The invention takes advantage of the mechanical cleaning system. The fan can be driven by natural wind to reduce energy consumption. The roller brush moves up and down to cover the surface of the component to achieve comprehensive cleaning. The gear box is stably connected to the transmission shaft, the wire rope transmits power, and the structure is simple and durable.

[0046] The present invention uses sonic vibration and mechanical cleaning in synergy: sonic waves loosen dust, and roller brushes clean thoroughly, improving cleaning efficiency. The device can be operated dry (using air) or combined with wet cleaning (adding a small amount of water mist). It is energy-saving and environmentally friendly, does not rely on additional power devices, and reduces resource consumption and environmental burden.

[0047] The system of the present invention is suitable for large-scale photovoltaic power stations in deserts, Gobi and arid areas. It has the characteristics of low initial cost, low operating cost and high efficiency, and can quickly occupy the market. After removing dust accumulation, the photovoltaic power generation efficiency is increased by 20%-40%, which significantly increases the power generation income.

[0048] The high-efficiency dust removal device of the present invention takes the air vibration system as the core, reduces the dust adhesion through the action of sound waves, and then cooperates with mechanical cleaning to achieve comprehensive cleaning, innovatively solving the problems of resource waste and low efficiency in the dust removal process of photovoltaic power stations.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-efficiency dust removal device for a photovoltaic power station, characterized in that: The invention comprises an air vibration system and a mechanical cleaning system. The air vibration system is used to generate low-frequency sound waves to loosen dust on the surface of the photovoltaic assembly, and the mechanical cleaning system removes the loose dust by moving a roller brush up and down.

2. The photovoltaic power station high-efficiency dust removal device according to claim 1, characterized in that: The air vibration system comprises an air compressor, an air storage tank and a diaphragm vibration assembly. The air storage tank is connected to the air compressor, and the diaphragm vibration assembly is connected to the air storage tank via an air pipeline.

3. The photovoltaic power station high-efficiency dust removal device according to claim 2, characterized in that: The diaphragm vibration assembly includes a gas suction port, a diaphragm, a generator and a horn. The gas suction port is arranged at the end of the gas pipeline. The horn is connected to the gas suction port. The diaphragm and the generator are arranged at the rear end of the horn.

4. The photovoltaic power station high-efficiency dust removal device according to claim 2, characterized in that: A solenoid valve is arranged on the gas transmission pipeline.

5. The photovoltaic power station high-efficiency dust removal device according to claim 3, characterized in that: The speaker is arranged on the top of the photovoltaic component.

6. The photovoltaic power station high-efficiency dust removal device according to claim 1, characterized in that: The mechanical cleaning system includes a fan, a gear box, a transmission shaft, a wire rope and a roller brush. The gear box is connected to the fan, the transmission shaft is connected to the gear box, a wire rope is wound around the transmission shaft, and the wire rope is connected to the roller brush.

7. The photovoltaic power station high-efficiency dust removal device according to claim 6, characterized in that: A clutch is provided between the transmission shaft and the gear box, and the clutch controls the transmission shaft and the gear box to be disconnected or connected.

8. The method for using the photovoltaic power station high-efficiency dust removal device according to claim 1, characterized in that: The steps include: The compressed air generated by the air compressor is transported to the diaphragm through the air pipeline, and is converted into low-frequency sound waves through the self-excited oscillation in the generator, and acts on the surface of the photovoltaic module through the speaker; The fan drives the gear box to operate. The rotational power generated by the fan is transmitted to the drive shaft through the gear box. The roller brush is driven up and down by the wire rope, and the friction between the bristles and the surface of the photovoltaic module is used to thoroughly remove the dust.

9. The method for using the photovoltaic power station high-efficiency dust removal device according to claim 8, characterized in that: As the roller brush rises, it cleans the surface of the photovoltaic module; the roller brush moves upward to clean the surface of the photovoltaic module; when it reaches the top, the clutch controls the drive shaft and the gear box to disconnect, and the roller brush slides down naturally due to gravity to complete the cleaning action.

10. The method for using the photovoltaic power station high-efficiency dust removal device according to claim 8, characterized in that: The air vibration system works in conjunction with the mechanical cleaning system, with the vibration system loosening the dust which is then completely removed by the cleaning system.

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