WO2023147722A1 - Dust removal device of photovoltaic power station - Google Patents

Abstract

A dust removal device of a photovoltaic power station, said device comprising a support (10), at least one scouring structure and at least one air blowing structure; the scouring structure comprises brush rods (20) and brushes (21), the brush rods (20) are rotatably connected to the support (10), the brushes (21) are connected to the brush rods (20), the brush rods (20) rotate to drive the brushes (21) to rotate so as to clean the dust on a photovoltaic panel (60); the air blowing structure comprises an air tube (30) and a plurality of air holes (31), and the air tube (30) is connected between the brush rod (20) and the brush (21); the plurality of air holes (31) are arranged at intervals on the air tube (30), and the air holes (31) can blow air to clean the dirt deposited on the photovoltaic panel (60). The described device cleans the dust on the surface of the photovoltaic panel (60) by means of the scouring structure, without needing to consume water and without needing to consume a lot of manpower and material, thereby greatly saving resource consumption and reducing production costs. Moreover, by combining the air blowing structure to clean the dirt deposited on the photovoltaic panel, the dust removal efficiency of the dust removal device of a photovoltaic power station is also improved.

Description

A photovoltaic power plant dust removal device

Cross References to Related Applications

This disclosure claims the priority of a Chinese patent application with application number 202210116970.2 and titled “A Photovoltaic Power Station Dust Removal Device” filed with the China Patent Office on February 7, 2022, the entire contents of which are incorporated by reference in this disclosure.

technical field

The application belongs to the technical field of photovoltaics, and in particular relates to a dust removal device for a photovoltaic power station.

Background technique

Photovoltaic power plants use solar light to generate electricity and can transmit electricity to the grid. As people pay more and more attention to environmental protection, photovoltaic power generation, as one of the green energy sources, is widely used, and the construction and scale of photovoltaic power stations are also increasing.

Among them, the dust removal device of the photovoltaic power station has an important impact on the power generation efficiency of the photovoltaic power station. The dust and debris deposited on the photovoltaic panel will affect its absorption of light energy, which will significantly reduce the power generation efficiency of the photovoltaic power station. In the prior art, the dust removal method of photovoltaic power plants is mainly to manually spray water to the photovoltaic panels through water trucks, or to use automatic water spray devices to spray water to the photovoltaic panels for cleaning, which requires a lot of manpower and material resources, and consumes a lot of energy. water resources.

Contents of the invention

In view of the above problems, the present disclosure is proposed to provide a photovoltaic power plant dust removal device that overcomes the above problems or at least partially solves the above problems.

In order to solve the above-mentioned technical problems, the application is implemented as follows:

The embodiment of the present application proposes a dust removal device for a photovoltaic power station, the dust removal device for a photovoltaic power station includes a bracket, at least one scouring structure and at least one air injection structure; wherein,

The scouring structure includes a brush rod and a brush, the brush rod is rotatably connected to the bracket, the brush is connected to the brush rod, and the rotation of the brush rod drives the rotation of the brush to clean the photovoltaic plate dust;

The air injection structure includes an air pipe and a plurality of air holes, the air pipe is connected between the brush rod and the brush, the plurality of air holes are arranged on the air pipe at intervals, and the air holes can eject gas to Clean the photovoltaic panels of deposited dirt.

Optionally, the brush rod includes a first end and a second end oppositely disposed, and the first end is rotatably connected to the bracket;

In the direction from the first end to the second end, the cross-sectional area of the brush rod decreases successively.

Optionally, the photovoltaic power plant dust removal device also includes a driver;

The output end of the driver is connected to the first end of the brush rod, and the driver drives the first end of the brush rod to rotate around the bracket.

Optionally, the photovoltaic power station dust removal device also includes a connecting rod and a rotating shaft;

One end of the connecting rod is connected to the output end of the driver, and the other end of the connecting rod is connected to the rotating shaft;

The rotating shaft passes through the bracket, and the rotating shaft is connected between the first end of the brush rod and the other end of the connecting rod;

The driver drives the connecting rod to move, the connecting rod drives the rotating shaft to rotate on the bracket, and the brush rod is linked with the rotating shaft so that the first end of the brush rod rotates around the bracket .

Optionally, the photovoltaic power plant dust removal device also includes an air compressor connected to the air pipe;

The air compressor inputs gas into the air pipe so that the gas is ejected from the air holes.

Optionally, the photovoltaic power plant dedusting device further includes a controller, and the controller is electrically connected to the driver and the air compressor respectively;

The controller controls the driver to work at a first preset frequency, and the controller controls the air compressor to work at a second preset frequency; wherein,

The first preset frequency is greater than or equal to the second preset frequency.

Optionally, the driver, the air compressor, and the controller are respectively electrically connected to the photovoltaic panel;

The driver, the air compressor, and the controller can all obtain electrical energy from the photovoltaic panel.

Optionally, the length of the brush is less than or equal to the length of the brush rod.

Optionally, the connection method of the brush and the brush rod includes at least one of hot-melt bonding and adhesive bonding.

Optionally, the material of the brush includes at least one of nylon and chemical fiber.

In the embodiment of the present application, the photovoltaic power station dust removal device of the present disclosure includes a bracket, at least one scouring structure and at least one air injection structure; wherein, the scouring structure includes a brush rod and a brush, and the brush rod is rotatably connected to the bracket, The brush is connected to the brush rod, and the rotation of the brush rod drives the brush to rotate to clean the dust on the photovoltaic panel; the air spray structure includes an air pipe and a plurality of air holes, and the air pipe is connected to the Between the brush rod and the brush, the plurality of air holes are arranged at intervals on the air pipe, and the air holes can eject gas to clean dirt deposited on the photovoltaic panel. Cleaning the dust on the surface of the photovoltaic panel by scouring the structure does not need to consume water resources, nor does it need to consume a lot of manpower and material resources, which greatly saves the consumption of resources and reduces the production cost. In addition, combined with the air jet structure to clean the dirt deposited on the photovoltaic panel, the dust removal efficiency of the dust removal device of the photovoltaic power station is also improved, and the power generation efficiency of the photovoltaic power station is improved.

The above description is only an overview of the technical solution of the present disclosure. In order to better understand the technical means of the present disclosure, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present disclosure more obvious and understandable , the specific embodiments of the present disclosure are enumerated below.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following will briefly introduce the drawings that need to be used in the descriptions of the embodiments or related technologies. Obviously, the drawings in the following description are the For some disclosed embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

The above and/or additional aspects and advantages of the present disclosure will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, in which:

Fig. 1 is a schematic structural view of a dust removal device for a photovoltaic power station described in an embodiment of the present application;

Fig. 2 is a structural schematic diagram of a section A-A in Fig. 1 of a dust removal device for a photovoltaic power station described in an embodiment of the present application.

Reference signs: 10-bracket; 20-brush rod; 21-hair brush; 30-trachea; 31-air hole; 201-first end; 202-second end; 40-driver; 41-connecting rod; 42-rotating shaft ; 50-air compressor; 60-photovoltaic panel.

specific embodiment

Embodiments of the present disclosure will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present disclosure and should not be construed as limiting the present disclosure. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The features of the terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of these features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

In describing the present disclosure, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientations or positional relationships indicated by "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying the referred devices or elements Must be in a particular orientation, constructed, and operate in a particular orientation, and thus should not be construed as limiting on the present disclosure.

In the description of the present disclosure, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure in specific situations.

Referring to Figures 1 to 2, it shows a schematic structural view of a photovoltaic power plant dust removal device described in the embodiment of the present application, which may specifically include: a bracket 10, at least one flushing structure and at least one air injection structure; wherein,

The scouring structure includes a brush bar 20 and a brush 21, the brush bar 20 is rotatably connected to the bracket 10, the brush 21 is connected to the brush bar 20, and the rotation of the brush bar 20 drives the brush 21 to rotate to clean the dust on the photovoltaic panel 60;

The air injection structure includes an air pipe 30 and a plurality of air holes 31. The air pipe 30 is connected between the brush rod 20 and the brush 21. A plurality of air holes 31 are arranged at intervals on the air pipe 30. The air holes 31 can eject gas to clean the photovoltaic panel 60 Deposited dirt.

The photovoltaic power station dust removal device of the embodiment of the present application can clean the dust on the surface of the photovoltaic panel 60 through the brush bar 20 and the brush 21 of the scouring structure, without consuming water resources, and without consuming a lot of manpower and material resources, which greatly saves Reduce resource consumption and reduce production costs. In addition, combined with the air jet structure, the dirt deposited on the photovoltaic panel 60 can be cleaned, and the dirt such as hard blocks deposited on the surface of the photovoltaic panel 60 can be strongly removed, and the dust removal efficiency of the dust removal device of the photovoltaic power station can also be improved, thereby improving the photovoltaic power plant. Power generation efficiency of the power station.

In the embodiment of the present application, the material of the brush holder 20 may include at least one of PBT (Polybutylene Terephthalte, polybutylene terephthalate) and PC (Polycarbonate, polycarbonate). Among them, the PBT material can be rapidly formed, has a short processing cycle, and has good wear resistance, strength and toughness. In this way, the production period of the brush rod can be shortened, and the brush rod has good wear resistance, strength and toughness.

Specifically, in the embodiment of the present application, the distance between the plurality of air holes 31 can be set to 8cm, 8.5cm, 9cm, etc., so that the plurality of air holes 31 are evenly spaced, and the dirt deposited on the photovoltaic panel 60 can be better. cleaning effect. It can be understood that the distance between the plurality of air holes 31 can be set according to the actual situation, which is not limited in this embodiment of the present application.

The diameter of the pores 31 may include any value in the range of 2-2.5 cm, and may also include 1.5 cm, 3 cm, etc. The air outlet pressure of the air hole 31 can include any value in 10-15 bar, and can also include 8 bar, so that the gas ejected from the air hole 31 has a strong and effective cleaning effect on the dirt deposited on the photovoltaic panel 60 . It can be understood that, in practical applications, the aperture and air outlet pressure of the air hole 31 can be set according to actual needs, and the embodiment of the present application does not limit the specific aperture of the air hole 31 and the air outlet pressure.

In some optional embodiments of the present application, the brush rod 20 includes a first end 201 and a second end 202 oppositely disposed, and the first end 201 is rotatably connected to the bracket 10 . From the first end 201 to the second end 202, the cross-sectional area of the brush bar 20 decreases successively. In this way, the cross-sectional area of the first end 201 where the brush rod 20 is rotationally connected to the bracket 10 is larger and has better strength, which prevents the brush rod 20 from being easily broken and lost during continuous reciprocating rotation, and increases the service life of the brush rod 20 . At the same time, the cross-sectional area of the second end 202 of the brush rod 20 is small, and the resistance to the rotation of the brush rod 20 is also small, which can improve the flexibility of the rotation of the brush rod 20, save materials, and reduce production costs.

For example, the cross-sectional area of the first end 201 may include a width of 60 mm * a height of 20 mm, and the cross-sectional area of the second end 202 may include a width of 40 mm * a height of 20 mm. In practical applications, the cross-sectional areas of the first end 201 and the second end 202 may also be set according to actual needs, and the specific cross-sectional areas of the first end 201 and the second end 202 may not be limited in the embodiment of the present application.

Optionally, the photovoltaic power plant dust removal device further includes a driver 40 , the output end of the driver 40 is connected to the first end 201 of the brush rod 20 , and the driver 40 drives the first end 201 of the brush rod 20 to rotate around the bracket 10 . In this way, the brush bar 20 can be automatically rotated by the driver 40 , and the rotation range of the brush bar 20 can be controlled to improve the cleaning efficiency of the scouring structure on the photovoltaic panel 60 .

In some optional embodiments of the present application, the photovoltaic power station dust removal device further includes a connecting rod 41 and a rotating shaft 42 , one end of the connecting rod 41 is connected to the output end of the driver 40 , and the other end of the connecting rod 41 is connected to the rotating shaft 42 . The rotating shaft 42 passes through the bracket 10 , and the rotating shaft 42 is connected between the first end 201 of the brush rod 20 and the other end of the connecting rod 41 . The driver 40 drives the connecting rod 41 to move, and the connecting rod 41 drives the rotating shaft 42 to rotate on the bracket 10 , and the brush rod 20 is linked with the rotating shaft 42 to make the first end 201 of the brush rod 20 rotate around the bracket 10 .

In the embodiment of the present application, a connecting rod 41 and a rotating shaft 42 are provided, and the driver 40 and the brush rod 20 are connected through the connecting rod 41 and the rotating shaft 42, so that the connecting rod 41 transmits the power output by the driver 40, and the brush rod 20 acts on the rotating shaft 42. The rotation can be flexibly realized on the bracket 10, and the space can be effectively used in the installation area of the dust removal device of the photovoltaic power station to improve the space utilization rate.

Optionally, the photovoltaic power station dust removal device further includes an air compressor 50 connected to the gas pipe 30 , and the air compressor 50 inputs gas to the gas pipe 30 to make the gas eject from the air hole 31 . In this way, the dust removal device of the photovoltaic power station can provide high-pressure gas to the air pipe 30 through the air compressor 50, so that the high-pressure gas is ejected from the air hole 31, and the cleaning effect on the dirt deposited on the surface of the photovoltaic panel 60 is improved by the high-pressure gas.

In some optional embodiments of the present application, the photovoltaic power plant dust removal device further includes a controller, the controller is electrically connected to the driver 40 and the air compressor 50, and the controller controls the driver 40 to follow the first preset frequency, the controller controls the air compressor 50 to work according to the second preset frequency. Wherein, the first preset frequency is greater than or equal to the second preset frequency.

For example, the controller may control the driver 40 to work at a frequency of 2 minutes every 12 hours, and control the air compressor 50 to work at a frequency of 2 minutes every 12 hours. In this way, while the scouring structure cleans the photovoltaic panel 60, the air injection structure also performs air jet cleaning on the photovoltaic panel 60, which can improve the cleaning efficiency of the dust removal device of the photovoltaic power station.

The controller can also control the driver 40 to work at a frequency of 2 minutes every 12 hours. Since the surface of the photovoltaic panel 60 is not prone to deposit dirt in a short period of time, it can control the air compressor 50 to start work every 24 hours. 2 minutes frequency work. In this way, the dust removal device of the photovoltaic power station can have a better cleaning effect on the photovoltaic panel 60 while reducing energy consumption and saving energy.

It can be understood that, in practical applications, the above-mentioned first preset frequency and second preset frequency can be set according to specific requirements. The frequency may not be limited.

Optionally, the driver 40 , the air compressor 50 , and the controller are respectively electrically connected to the photovoltaic panel 60 , and the driver 40 , the air compressor 50 , and the controller can all obtain electric energy from the photovoltaic panel 60 . Since the photovoltaic panel 60 can generate electric energy, the driver 40, the air compressor 50 and the controller are electrically connected to the photovoltaic panel 60 respectively, so that the driver 40, the air compressor 50 and the controller can directly obtain electric energy from the photovoltaic panel 60 , to get the power source. There is no need to provide power supply separately, which is more convenient.

In some optional embodiments of the present application, the length of the brush 21 is less than or equal to the length of the brush rod 20 . In this way, the hairbrush 21 can be firmly connected to the brush rod 20, preventing the hairbrush 21 from being too long to be completely connected to the brush rod 20, causing the part not connected to the brush rod 20 to curl easily, and under the reciprocating rotation of the brush rod 20 The brush 21 is easily detached from the brush rod 20 and is worn out.

For example, the edge distance between one end of the hairbrush 21 and the first end 201 of the brush bar 20 can be set to 5cm, the edge distance between the other end of the hairbrush 21 and the second end 202 of the brush bar 20 can be set to 2cm, and the width of the hairbrush 21 can be Set to 8cm. In a specific application, the foregoing distance may also be set according to actual needs, which may not be limited in this embodiment of the present application.

Specifically, the connection manner between the brush 21 and the brush rod 20 includes at least one of hot-melt bonding and adhesive bonding. The brush 21 is connected stably and reliably with the brush rod 20 through simple and easy glue bonding or hot melt bonding.

Optionally, the material of the brush 21 includes at least one of nylon and chemical fiber. Wherein, the nylon 612 material has good aging resistance, and the use of the nylon 612 material as the brush filament of the brush 21 can improve the service life of the scour structure. Moreover, the tensile strength of the nylon 612 brush filament at 23 degrees Celsius is greater than or equal to 55 MPa, and the Rockwell hardness is less than or equal to 116 MPa, which can be better adapted to the application environment of the brush 21, so that the brush 21 has good tensile strength and hardness. In practical application, the hair brush 21 can be renewed every year, so as to prevent the cleaning efficiency of the photovoltaic panel 60 from being reduced by the wear and tear of the hair brush 21.

For example, the diameter of the filaments of the brush 21 may include any value from 0.55 mm to 0.75 mm, and the embodiment of the present application may not limit the specific diameter of the filaments of the brush 21 .

To sum up, the photovoltaic power station dust removal device described in the embodiment of the present application can at least include the following advantages:

In the embodiment of the present application, the dust removal device for a photovoltaic power station includes a bracket, at least one scouring structure, and at least one air injection structure; wherein, the scouring structure includes a brush rod and a brush, the brush rod is rotatably connected to the bracket, and the The brush is connected to the brush rod, and the rotation of the brush rod drives the rotation of the brush to clean the dust on the photovoltaic panel; the air spray structure includes an air pipe and a plurality of air holes, and the air pipe is connected to the brush rod Between the brush and the brush, the plurality of air holes are arranged on the air pipe at intervals, and the air holes can eject gas to clean the dirt deposited on the photovoltaic panel. Cleaning the dust on the surface of the photovoltaic panel by scouring the structure does not need to consume water resources, nor does it need to consume a lot of manpower and material resources, which greatly saves the consumption of resources and reduces the production cost. In addition, combined with the air jet structure to clean the dirt deposited on the photovoltaic panel, the dust removal efficiency of the dust removal device of the photovoltaic power station is also improved, and the power generation efficiency of the photovoltaic power station is improved.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present disclosure have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present disclosure. The scope of the present disclosure is defined by the claims and their equivalents.

Claims (10)

1. A photovoltaic power station dust removal device, characterized in that the photovoltaic power station dust removal device includes a bracket, at least one scouring structure and at least one air injection structure; wherein,

   The scouring structure includes a brush rod and a brush, the brush rod is rotatably connected to the bracket, the brush is connected to the brush rod, and the rotation of the brush rod drives the rotation of the brush to clean the photovoltaic plate dust;

   The air injection structure includes an air pipe and a plurality of air holes, the air pipe is connected between the brush rod and the brush, the plurality of air holes are arranged on the air pipe at intervals, and the air holes can eject gas to Clean the photovoltaic panels of deposited dirt.
2. The photovoltaic power station dust removal device according to claim 1, wherein the brush rod includes a first end and a second end oppositely arranged, and the first end is rotatably connected to the bracket;

   In the direction from the first end to the second end, the cross-sectional area of the brush rod decreases successively.
3. The photovoltaic power station dust removal device according to claim 2, wherein the photovoltaic power station dust removal device also includes a driver;

   The output end of the driver is connected to the first end of the brush rod, and the driver drives the first end of the brush rod to rotate around the bracket.
4. The photovoltaic power station dust removal device according to claim 3, wherein the photovoltaic power station dust removal device further comprises a connecting rod and a rotating shaft;

   One end of the connecting rod is connected to the output end of the driver, and the other end of the connecting rod is connected to the rotating shaft;

   The rotating shaft passes through the bracket, and the rotating shaft is connected between the first end of the brush rod and the other end of the connecting rod;

   The driver drives the connecting rod to move, the connecting rod drives the rotating shaft to rotate on the bracket, and the brush rod is linked with the rotating shaft so that the first end of the brush rod rotates around the bracket .
5. The photovoltaic power station dust removal device according to claim 3, wherein the photovoltaic power station dust removal device further comprises an air compressor, and the air compressor is connected to the air pipe;

   The air compressor inputs gas into the air pipe so that the gas is ejected from the air holes.
6. The photovoltaic power station dust removal device according to claim 5, wherein the photovoltaic power station dust removal device further comprises a controller, and the controller is electrically connected to the driver and the air compressor respectively;

   The controller controls the driver to work at a first preset frequency, and the controller controls the air compressor to work at a second preset frequency; wherein,

   The first preset frequency is greater than or equal to the second preset frequency.
7. The photovoltaic power station dust removal device according to claim 6, wherein the driver, the air compressor, and the controller are respectively electrically connected to the photovoltaic panel;

   The driver, the air compressor, and the controller can all obtain electrical energy from the photovoltaic panel.
8. The dust removal device for a photovoltaic power station according to claim 1, wherein the length of the brush is less than or equal to the length of the brush rod.
9. The photovoltaic power station dust removal device according to claim 1, wherein the connection method between the brush and the brush rod includes at least one of hot-melt bonding and adhesive bonding.
10. The dust removal device for a photovoltaic power station according to claim 1, wherein the material of the brush includes at least one of nylon and chemical fiber.

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