Dust removal device and method for wind driven generator

Abstract

The invention belongs to the technical field of generator dust removal, and discloses a wind driven generator dust removal device and method.The device comprises a wind driven generator cabin, a shutter is arranged at one end of the wind driven generator cabin, a hub is arranged at the other end of the wind driven generator cabin, and a dustproof net is arranged on the side, close to the hub, of the shutter; the dust removal assembly is arranged on the side, close to the hub, of the dust screen, the hub is movably connected with the wind driven generator cabin through a rotating shaft, the dust screen and the shutters are fixedly installed at one end of the wind driven generator cabin, the dust removal assembly is fixedly installed in the wind driven generator cabin, and the power source accurately controls the dust removal head to move up and down. The air blower enables air in the cabin of the wind driven generator to flow in from the air inlet and flow out from the air outlet through centrifugal force, dust on the outer side of the dustproof net can flow out in the direction of the shutters, and the technical problems that in the prior art, in the long-term use process of the dustproof net in the cabin of the wind driven generator, the air inlet side is prone to being blocked, and manual cleaning is needed are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of generator dust removal, and relates to a wind turbine generator dust removal device and method. Background Art

[0002] Wind turbines are devices that convert wind energy into electrical energy. Wind power is a renewable energy source. Due to its environmental friendliness and renewability, wind power generation has been developing rapidly and is known as the most likely form of energy to replace fossil energy.

[0003] Wind turbines are generally located at high altitudes to generate electricity by absorbing wind power. The wind turbine cabin is also located in the air. To ensure normal heat dissipation inside the cabin, a universal port is usually provided on the cabin to facilitate heat dissipation inside the cabin. In order to ensure that dust in the external environment does not enter the cabin, a filter is usually provided at the ventilation point to prevent dust from entering the cabin. However, dust is easily attached to the air inlet side of the filter during long-term use, clogging the filter holes, thereby affecting the normal heat dissipation of the cabin. Manual cleaning or replacement is more troublesome. Therefore, a wind turbine dust removal device is needed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a wind turbine dust removal device and method, in which a power source accurately controls the up and down movement of a dust removal head, and a blower utilizes centrifugal force to draw air into the wind turbine cabin from the air inlet and out from the air outlet, so that dust on the outside of the dustproof net can flow out along the direction of the louvers, thereby solving the technical problem in the prior art that the dustproof net in the wind turbine cabin is easily clogged on the air inlet side during long-term use and requires manual cleaning.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: The present invention provides a wind turbine generator dust removal device, comprising a wind turbine generator cabin, a louver is arranged at one end of the wind turbine generator cabin, and a hub is arranged at the other end, a dustproof net is arranged on the side of the louver close to the hub, a dust removal assembly is arranged on the side of the dustproof net close to the hub, the hub is movably connected to the wind turbine generator cabin through a rotating shaft, the dustproof net and the louver are fixedly installed at one end of the wind turbine generator cabin, and the dust removal assembly is fixedly installed in the wind turbine generator cabin.

[0006] Furthermore, it also includes a sliding rod, which is arranged on both sides of the dustproof net, the dust removal component is sleeved on the outer surface of the sliding rod, and the sliding rod is fixedly connected to the wind turbine cabin through a fixing piece.

[0007] Furthermore, the dust removal assembly includes a sliding sleeve, a connecting rod and a dust removal head; the connecting rod is arranged at both ends of the dust removal head, one end of the connecting rod is fixedly connected to the dust removal head, and the other end is fixedly connected to the sliding sleeve, the sliding sleeve is arranged on the side of the connecting rod away from the dust removal head, and the dust removal head has a hollow structure inside, which is sleeved on the outer surface of the sliding rod.

[0008] Furthermore, an air outlet is provided on the side of the dust removal head close to the dustproof net, and multiple air inlets are provided on the side of the dust removal head away from the dustproof net. The dust removal head has a hollow structure, and the dust removal head, air outlet and air inlet are interconnected. The air inlet is used to connect to a blower.

[0009] Furthermore, rollers are provided on both ends of a side of the dust removal head away from the dustproof net, and the rollers are fixedly connected to the dust removal head and abut against the dustproof net.

[0010] Furthermore, a threaded sleeve is provided between the multiple air inlets, and the threaded sleeve is fixedly connected to the dust removal head.

[0011] Furthermore, the dust removal assembly also includes a threaded rod and a power source; the threaded rod is sleeved in the threaded sleeve, and the output end of the power source is fixedly connected to the threaded rod.

[0012] Furthermore, the dust removal assembly also includes a fixing plate; the fixing plate is arranged at both ends of the threaded rod and is fixedly connected to the threaded rod through bearings, and the output end of the power source passes through the fixing plate and is fixedly connected to the threaded rod.

[0013] Furthermore, the fixing members are arranged at both ends of the sliding rod and are fixedly connected to the nacelle of the wind turbine generator.

[0014] The present invention also provides a method for removing dust from a wind turbine generator, comprising the following steps: connecting the blower outlet with the air inlet and turning on the power source switch; the blower flows the air in the wind turbine generator cabin into the dust removal head through the air inlet, the power source controls the rotation of the threaded rod, and the threaded rod moves the roller on the dust removal assembly up and down through the threaded sleeve; the air in the dust removal head passes through the dustproof net, and the dust on the outside of the dustproof net flows out along the direction of the louver.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention discloses a dust removal device for a wind turbine generator. The power source of the dust removal component accurately controls the up and down movement of the dust removal head, so that the dustproof net can be comprehensively and carefully cleaned. The wind blown out of the air outlet blows the dust attached to the outside of the dustproof net in the reverse direction and flows out along the direction of the louvers, so as to effectively remove various stubborn dusts, greatly improve the cleaning efficiency, ensure that the dustproof net always maintains good filtering performance, and provide reliable guarantee for the normal operation of the equipment.

[0016] The present invention provides a wind turbine dust removal device. The dust-proof net effectively blocks dust in the external environment air from entering the interior of the wind turbine cabin. The reduction of dust protects various mechanical components, electrical equipment, etc. in the cabin from being corroded and disturbed by dust, which helps to maintain the accuracy and performance of the wind turbine, reduce the risk of equipment failure caused by dust accumulation, and ensure that the wind turbine can operate stably and continuously.

[0017] The invention provides a wind turbine dust removal device, in which dust on the dustproof net can automatically fall along the louver without manual intervention, thus realizing an automated cleaning process, which not only saves labor costs, but also reduces operational errors and potential damage to the equipment caused by manual cleaning. At the same time, automated operation can ensure the timeliness and stability of cleaning work and improve overall reliability.

[0018] The wind turbine dust removal device of the present invention can complete the dust removal task by only starting the power source through the dust removal component, which greatly shortens the maintenance time of the equipment and improves the production efficiency.

[0019] The invention discloses a dust removal device for a wind turbine generator, wherein the air outlet is flat and can concentrate the airflow in a specific direction to form a strong sweeping force, thereby ensuring that the dust is quickly blown off under the impact of the strong airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a dust removal device for a wind turbine generator according to the present invention; Figure 2 A schematic diagram of the structure of a dust removal assembly in an embodiment of the present invention; Figure 3 Schematic diagram of the structure of the dust removal head in an embodiment of the present invention.

[0021] Reference numerals: 1-wind turbine cabin; 2-shutters; 3-hub; 4-dust net; 5-slide rod; 6-fixing piece; 7-slide sleeve; 8-connecting rod; 9-dust removal head; 10-air outlet; 11-air inlet; 12-roller; 13-threaded sleeve; 14-threaded rod; 15-power source; 16-fixing plate. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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 should fall within the scope of protection of the present invention.

[0023] Example 1 The present invention discloses a wind turbine dust removal device, comprising a wind turbine nacelle 1, a louver 2 is provided at one end of the wind turbine nacelle 1, and a hub 3 is provided at the other end, a dustproof net 4 is provided on the side of the louver 2 close to the hub 3, a dust removal component is provided on the side of the dustproof net 4 close to the hub 3, the hub 3 is movably connected to the wind turbine nacelle 1 through a rotating shaft, the dustproof net 4 and the louver 2 are fixedly installed at one end of the wind turbine nacelle 1, and the dust removal component is fixedly installed in the wind turbine nacelle 1.

[0024] Specifically, Figure 1 As shown, a wind turbine dust removal device includes a wind turbine nacelle 1 and a hub 3. The hub 3 is arranged at the front end of the wind turbine nacelle 1 and is movably connected to the wind turbine nacelle 1 through a rotating shaft. A fan blade is arranged on the outer side of the circumference of the hub 3, which is responsible for capturing wind energy and converting it into mechanical energy and finally into electrical energy. The shutter 2 is arranged at one end of the wind turbine nacelle 1 away from the hub 3, and the dustproof net 4 is arranged on the side of the wind turbine nacelle 1 close to the shutter 2. The arrangement of the shutter 2 and the dustproof net 4 can prevent dust in the external environment from entering the wind turbine nacelle 1, thereby ensuring ventilation and heat dissipation inside the wind turbine nacelle 1, and also ensuring the cleanliness of the wind turbine nacelle 1. The dust removal component is installed on the side of the wind turbine nacelle 1 close to the dustproof net 4. The centrifugal force is generated by the blower, and the gas in the wind turbine nacelle 1 flows from one end of the dustproof net 4 close to the dust removal component to the other end through the dust removal component, and the dust on the other end of the dustproof net 4 flows out along the direction of the shutter 2.

[0025] To sum up, the dustproof net 4 can prevent dust in the external environment from entering the interior of the wind turbine cabin, ensuring the cleanliness of the interior of the wind turbine cabin. The wind blown out by the dust removal component can blow back the dust attached to the outside of the dustproof net 4, and the dust on the outside can automatically fall along the louver 2. The structure is compact and easy and quick to use.

[0026] Example 2 The present invention discloses a wind turbine dust removal device, comprising a wind turbine nacelle 1, a louver 2, a hub 3, a dust screen 4, a slide bar 5 and a dust removal assembly. The hub 3 is arranged at one end of the wind turbine nacelle 1, the louver 2 is arranged at the other end of the wind turbine nacelle 1, and the dust screen 4 and the dust removal assembly are arranged in the wind turbine nacelle 1 and at one end close to the louver 2.

[0027] The two ends of the slide bar 5 are provided with fixing parts 6, which are fixedly connected to the wind turbine nacelle 1. The fixed connection here is welding or clamping. If it is welding, the fixing part 6 is close to one side of the wind turbine nacelle 1 and is fixed to the wind turbine nacelle 1. During the welding process, the fixing part 6 and the wind turbine nacelle 1 form a solid whole. Welding can be used for all metal materials, including steel, aluminum, copper, etc. There are corresponding welding methods for different metal materials. For example, for stainless steel materials, argon arc welding is commonly used. This welding method can effectively prevent stainless steel from oxidizing during welding and ensure welding quality; for aluminum alloy materials, MIG welding can be used, which can provide a stable welding arc to make the aluminum alloy material fuse well; if it is clamping, a polygonal groove is provided on the wind turbine nacelle 1, and the fixing part 6 is installed in the polygonal groove. The connection strength of the clamping is relatively low, which is generally suitable for bearing smaller loads. Here, the fixed connection is preferably welding.

[0028] The dust removal assembly includes a sliding sleeve 7, a connecting rod 8 and a dust removal head 9; the connecting rod 8 is arranged at both ends of the dust removal head 9, one end of the connecting rod 8 is fixedly connected to the dust removal head 9, and the other end is fixedly connected to the sliding sleeve 7, the sliding sleeve 7 is arranged on the side of the connecting rod 8 away from the dust removal head 9, the dust removal head 9 is a hollow structure, and is sleeved on the outer surface of the sliding rod 5. Rollers 12 are arranged on both ends of the side of the dust removal head 9 away from the dustproof net 4, the rollers 12 are fixedly connected to the dust removal head 9, and abut against the dustproof net 4.

[0029] Specifically, Figure 2 As shown, the dust removal assembly includes a sleeve 7, a connecting rod 8, a dust removal head 9, a threaded rod 14 and a power source 15. The two ends of the dust removal head 9 are fixedly connected to the connecting rod 8, and the dust removal head 9 is fixedly connected to the other end of the connecting rod 8. The fixed connection includes welding and detachable connection. Welding is a method of joining the dust removal head 9 and the connecting rod 8 by heating, high temperature or high pressure. If it is a detachable connection, the end of the connecting rod 8 close to the dust removal head 9 is nested inside the dust removal head 9, and the sleeve 7 is fixedly installed at the other end of the connecting rod 8. It should be noted that the sleeve 7, the connecting rod 8 and the dust removal head 9 can be an integrated structure, and will not shake or deflect due to the loose connection between the sleeve 7, the connecting rod 8 and the dust removal head 9, thereby ensuring the stability and accuracy of the dust removal operation. Since there are no weak points in the connection parts, the entire structure can better withstand external forces and stresses.

[0030] The two sliding sleeves 7 are respectively sleeved on the outer surface of the sliding rod 5. The dust removal head 9 is a hollow structure. An air outlet 10 is provided on the side close to the dustproof net 4, and an air inlet 11 is provided on the side away from the dustproof net 4. A threaded sleeve 13 is provided between the two air inlets 11, and the threaded sleeve 13 is welded to the dust removal head 9. Figure 3As shown, the air inlet 11, the air outlet 10, and the dust removal head 9 are interconnected. The dust removal head 9 is provided with rollers 12 at both ends of one side of the air outlet 10. The rollers 12 abut against the dust screen 4 to prevent the dust removal head 9 from directly contacting the dust screen 4 and causing wear. The air inlet 11 is connected to the blower through a pipeline. The air outlet 10 is flat, and a certain distance is set between its two ends and the wind turbine nacelle 1. The flat shape can concentrate the airflow in a specific direction, forming a strong sweeping force, which can ensure that the dust is quickly blown off under the impact of the strong airflow.

[0031] The sliding sleeve 7 is usually a hollow sleeve-like structure having an inner hole, the size and shape of which match the sliding rod 5. The sliding rod 5 is a slender rod-like component, the outer diameter of which is slightly smaller than the inner diameter of the sliding sleeve, so that it can slide freely in the sliding sleeve. When an external force acts on the sliding sleeve 7, the sliding sleeve 7 will slide linearly along the axis direction of the inner hole of the sliding rod 5.

[0032] The roller 12 is fixedly connected to the dust removal head 9 and abuts against the dustproof net 4. Specifically, grooves adapted to the roller 12 are provided at the upper and lower ends of the dust removal head 9 near the air inlet 11, but the shape of the groove is the same as that of the roller 12, the diameter of the roller 12 is larger than the diameter of the groove, and the roller 12 is nested inside the groove. When the dust removal head 9 moves up and down, the roller 12 moves in the same direction with the dust removal head 9. In another case, an upper boss is provided between the roller 12 at the upper end and the air outlet 10, a rotating shaft is provided inside the roller 12, and the upper boss and the rotating shaft are connected by fasteners. Similarly, a lower boss is provided between the roller 12 at the lower end and the air outlet, a rotating shaft is provided inside the roller 12, and the lower boss and the rotating shaft are connected by fasteners.

[0033] The dust removal assembly also includes a threaded rod 14 and a power source 15; the threaded rod 14 is sleeved in the threaded sleeve 13, and the output end of the power source 15 is fixedly connected to the threaded rod 14, and also includes a fixing plate 16; the fixing plate 16 is arranged at both ends of the threaded rod 14, and is fixedly connected to the threaded rod 14 through bearings, and the output end of the power source 15 is fixedly connected to the threaded rod 14 through the fixing plate 16.

[0034] Specifically, Figure 2 As shown, the threaded rod 14 is sleeved in the threaded sleeve 13, and the fixing plates 16 are arranged at both ends of the threaded rod 14, connected by bearings, and the fixing plates 16 are welded to the wind turbine nacelle 1. The fixing plate 16 located at the upper end of the threaded sleeve 13 is the first fixing plate, and the fixing plate 16 located at the lower end of the threaded sleeve 13 is the second fixing plate. A power source 15 is arranged on one end of the first fixing plate away from the second fixing plate, and the power source 15 passes through the first fixing plate and is connected to the threaded rod 14.

[0035] In summary, the sliding sleeve 7 is sleeved on the outside of the sliding rod 5, the connecting rod 8 is installed at one end of the sliding rod 5, and the dust removal head 9 is connected between the two connecting rods 8. The side of the dust removal head 9 close to the dustproof net 4 is provided with a roller 12, and the number of rollers 12 is two. The roller 12 facilitates the dust removal head 9 to be attached to the surface of the dustproof net 4 and move up and down, thereby avoiding the dust removal head 9 from directly contacting the dustproof net 4 and causing wear. The side of the dust removal head 9 close to the air inlet 11 is provided with a threaded sleeve 13, and the upper and lower ends of the threaded sleeve 13 are provided with a fixing plate 16, and the upper end of the fixing plate 16 is provided with a power source 15, which is a forward and reverse motor. The output end of the power source 15 passes through the fixing plate 16 and is connected to the threaded rod 14, thereby driving the threaded rod 14 to rotate forward and reverse.

[0036] The threaded rod 14 is sleeved in the threaded sleeve 13, and the threaded sleeve 13 moves up and down with the rotation of the threaded rod 14. The threaded sleeve 13 is welded to the side of the dust removal head 9 close to the air inlet 11. When the threaded sleeve 13 moves up and down, the dust removal head 9 moves in the same direction. The air in the wind turbine cabin 1 flows in from the air inlet 11 and flows out from the air outlet 10, and the dust blown off the outer surface of the dustproof net 4 flows out along the direction of the louver 2 to avoid dust accumulation.

[0037] Example 3 A method for removing dust from a wind turbine generator comprises connecting a blower outlet to an air inlet 11, and turning on a power source 15 switch; the blower causes air in a wind turbine generator cabin 1 to flow into a dust removal head 9 through the air inlet 11, and the power source 15 controls a threaded rod 14 to rotate, and the threaded rod 14 passes through a threaded sleeve 13 to move a roller 12 on a dust removal assembly up and down; the air in the dust removal head 9 passes through a dustproof net 4, and dust on the outside of the dustproof net 4 flows out along a direction of a louver 2.

[0038] Specifically, the outlet of the blower is firmly connected to the air inlet 11 of the wind turbine nacelle 1 through a special sealed pipe. After that, the switch of the power source 15 is turned on. The power source 15 is a forward and reverse motor. When the power source 15 is powered on, the current passes through the stator winding to generate a rotating magnetic field. Under the action of the rotating magnetic field, the rotor generates an induced current due to electromagnetic induction, and then rotates under the action of the Ampere force. By changing the phase sequence of the current in the stator winding, the direction of the rotating magnetic field can be changed, thereby realizing the forward and reverse rotation of the motor, providing stable power for the entire dust removal process.

[0039] When the power source 15 is started, the blower starts to work, and under the action of the blower, the air in the wind turbine nacelle 1 is quickly drawn into the dust removal head 9 through the air inlet 11. At the same time, the power source 15 drives the threaded rod 14 to start rotating, and the threaded rod 14 and the threaded sleeve 13 are meshed with each other so that the roller 12 connected to the threaded sleeve 13 can move up and down along the slide bar 5, thereby driving the entire dust removal assembly to reciprocate in the up and down directions.

[0040] In the dust removal head 9, the air passes through the dustproof net 4, which is a filter with a special mesh structure, which can effectively block dust particles while allowing air to pass through. The dust intercepted by the outer side of the dustproof net 4 flows out along the direction of the louver 2 under the combined effect of the flow of air and the movement of the dust removal component. The angle of the louver 2 can be adjusted according to actual conditions, so as to guide the dust to be discharged smoothly into the external environment and avoid the secondary flying of dust in the wind turbine nacelle 1.

[0041] To sum up, the power source 15 accurately controls the up and down movement of the dust removal head 9, so that the dust net can be cleaned comprehensively and carefully. The wind blown out of the air outlet blows the dust attached to the outside of the dust net 4 in the opposite direction and flows out along the direction of the louver, which can effectively remove various stubborn dust and greatly improve the cleaning efficiency.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are 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 device or element referred to 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.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

Claims

1. A dust removal device for a wind turbine generator, characterized in that: The invention comprises a wind turbine nacelle (1), a shutter (2) being arranged at one end of the wind turbine nacelle (1), and a wheel hub (3) being arranged at the other end, a dustproof net (4) being arranged at a side of the shutter (2) close to the wheel hub (3), a dust removal component being arranged at a side of the dustproof net (4) close to the wheel hub (3), the wheel hub (3) being movably connected to the wind turbine nacelle (1) via a rotating shaft, the dustproof net (4) and the shutter (2) being fixedly mounted at one end of the wind turbine nacelle (1), and the dust removal component being fixedly mounted in the wind turbine nacelle (1).

2. The wind turbine dust removal device according to claim 1, characterized in that: It also includes a slide bar (5), the slide bar (5) being arranged on both sides of the dustproof net (4), the dust removal assembly being sleeved on the outer surface of the slide bar (5), and the slide bar (5) being fixedly connected to the wind turbine nacelle (1) via a fixing member (6).

3. The wind turbine dust removal device according to claim 2, characterized in that: The dust removal assembly comprises a sliding sleeve (7), a connecting rod (8) and a dust removal head (9); The connecting rod (8) is arranged at both ends of the dust removal head (9); one end of the connecting rod (8) is fixedly connected to the dust removal head (9), and the other end is fixedly connected to the sliding sleeve (7); the sliding sleeve (7) is arranged on the side of the connecting rod (8) away from the dust removal head (9); the dust removal head (9) has a hollow structure inside and is sleeved on the outer surface of the sliding rod (5).

4. The wind turbine dust removal device according to claim 3, characterized in that: An air outlet (10) is arranged on a side of the dust removal head (9) close to the dustproof net (4), and a plurality of air inlets (11) are arranged on a side of the dust removal head (9) away from the dustproof net (4). The dust removal head (9) is a hollow structure, and the dust removal head (9), the air outlet (10), and the air inlets (11) are interconnected. The air inlets (11) are used to be connected to a blower.

5. The wind turbine dust removal device according to claim 3, characterized in that: Rollers (12) are provided at both ends of a side of the dust removal head (9) away from the dustproof net (4); the rollers (12) are fixedly connected to the dust removal head (9) and abut against the dustproof net (4).

6. The wind turbine dust removal device according to claim 4, characterized in that: A threaded sleeve (13) is provided between the multiple air inlets (11), and the threaded sleeve (13) is fixedly connected to the dust removal head (9).

7. The dust removal device for a wind turbine generator according to claim 6, characterized in that: The dust removal assembly also includes a threaded rod (14) and a power source (15); The threaded rod (14) is sleeved in the threaded sleeve (13), and the output end of the power source (15) is fixedly connected to the threaded rod (14).

8. The wind turbine dust removal device according to claim 7, characterized in that: The dust removal assembly also includes a fixing plate (16); The fixing plates (16) are arranged at both ends of the threaded rod (14) and are fixedly connected to the threaded rod (14) via bearings; the output end of the power source (15) passes through the fixing plates (16) and is fixedly connected to the threaded rod (14).

9. The dust removal device for a wind turbine generator according to claim 2, characterized in that: The fixing members (6) are arranged at both ends of the sliding rod (5) and are fixedly connected to the wind turbine nacelle (1).

10. A method for removing dust from a wind turbine, characterized in that: The following steps are involved: Connect the blower outlet to the air inlet (11) and turn on the power source (15); The blower causes the air in the wind turbine cabin (1) to flow into the dust removal head (9) through the air inlet (11); the power source (15) controls the threaded rod (14) to rotate; the threaded rod (14) moves the roller (12) on the dust removal assembly up and down through the threaded sleeve (13); The air in the dust removal head (9) passes through the dustproof net (4), and the dust on the outside of the dustproof net (4) flows out along the direction of the louver (2).

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