Dust removal device for wind driven generator unit

Abstract

A dust removal device of a wind driven generator unit comprises a cabin. A rack is arranged in the cabin; a main bearing is rotationally arranged on the rack and extends to one side outside the cabin; a plurality of blade connecting columns are arranged on one side, outside the cabin, of the main bearing; the rack is provided with a brake device on one side of the main bearing; the main bearing is provided with a gear box on one side of the brake device; a generator is arranged on one side of the gearbox; air outlets are formed in one side and the lower part, away from the blade connecting column, of the cabin; air inlets are oppositely formed in the two sides of the end, close to the blade connecting columns, of the cabin. An axial flow fan is arranged in the cabin opposite to the air inlet; mounting frames are arranged above and below the air inlet in the cabin; rollers are rotationally arranged on the two sides of the air inlet of the mounting frame; the two rollers are connected through a belt; the mounting frame is provided with a driving motor at the upper part of the roller on one side to drive the roller to rotate; and air filtering cotton is wound on the roller on one side, passes through the air inlet and then is wound on the other roller.

Description

Technical Field

[0001] The utility model belongs to the field of wind power generation auxiliary devices, in particular to a dust removal device for a wind power generator set. Background Art

[0002] A wind turbine is a type of power generation equipment that converts wind energy into mechanical energy and then generates electricity through a generator. It is highly recommended due to its advantages such as high efficiency, green environmental protection, and renewable energy. During operation, a large amount of heat energy is generated at the unit position of the wind turbine. The wind turbine needs to be ventilated and cooled in time. Otherwise, the temperature in the unit will rise, affecting the normal operation of the generator equipment and even posing a fire hazard. Wind turbines are often installed in locations with harsh environments. There are often large amounts of dust, soil, and other particles in the air. These dust particles will enter the wind turbine during the air cooling and heat exchange process, affecting the heat dissipation effect of the unit equipment, increasing the mechanical resistance of the unit equipment, reducing power generation, and even causing a short circuit, posing a safety hazard. A common dust removal method for wind turbines is to install air filters at the air inlet of the wind turbine. However, after long-term use, the air filters will be clogged with dust, resulting in a decrease in the air intake for air cooling and substandard heat dissipation in the unit. Workers usually need to frequently replace the air filters. Wind turbines are installed at high locations, and the labor intensity of replacing air filters is high, resulting in high labor costs. Utility Model Content

[0003] The utility model aims to provide a dust removal device for a wind turbine generator set to solve the technical problem that a commonly used dust removal method for a wind turbine generator set is to arrange air filter cotton at the air inlet of the wind turbine generator set, but the air filter cotton will be clogged with dust after long-term use, resulting in a reduction in the air intake volume for air cooling and heat dissipation, and the heat dissipation effect in the unit is not up to standard. Usually, the staff needs to frequently replace the air filter cotton, and the wind turbine generator set is installed at a high position, so the labor intensity of replacing the air filter cotton by the staff is high, and the labor cost is high.

[0004] To achieve the above objectives, the specific technical solution of the dust removal device for a wind turbine generator set of the present invention is as follows:

[0005] A dust removal device for a wind turbine generator set includes a cabin; a frame is provided in the cabin; a main bearing is rotatably provided on the frame and extends to one side outside the cabin; a plurality of blade connecting columns are provided on the side outside the cabin of the main bearing; a brake device is provided on one side of the main bearing of the frame; a gear box is provided on one side of the brake device of the main bearing; a generator is provided on one side of the gear box; air outlets are provided on the side and lower part of the cabin away from the blade connecting columns; air inlets are provided on both sides of one end of the cabin close to the blade connecting columns; an axial flow fan is provided in the cabin at a position relative to the air inlet; mounting frames are provided in the cabin at upper and lower positions of the air inlet; rollers are rotatably provided on both sides of the mounting frame; the two rollers are connected by a belt; a drive motor is provided on the upper part of one roller of the mounting frame to drive it to rotate; air filter cotton is wound around one roller and then wound around the other roller after passing through the air inlet position.

[0006] Furthermore, the vertical dimension of the air filter cotton is larger than the air inlet.

[0007] Furthermore, a plurality of limiting posts are provided at the air inlet position; when the air filter cotton passes through the air inlet position, it is located between the limiting posts and the air inlet.

[0008] The utility model discloses a dust removal device for a wind turbine generator set, which has the following advantages: an air outlet is arranged on one side and the lower part of the cabin, and an axial flow fan arranged in conjunction with the air inlet and the air relative to the air inlet is used to introduce ambient temperature air into the cabin. The air introduced into the cabin carries the heat generated during the operation of equipment such as a brake device, a gear box, a generator, etc. arranged on the frame and is discharged through the air outlet, so as to achieve air cooling of multiple equipment in the cabin and the overall temperature, increase the air intake amount and the air flow speed, improve the heat dissipation efficiency of the unit, effectively reduce the temperature in the wind motor unit, reduce the aging of components of the unit equipment, and increase the service life of the equipment; rollers driven by a drive motor and a belt are arranged on both sides of the air inlet position of the cabin, and air filter cotton is arranged between the two rollers, and the air filter cotton is used to filter the air passing through the air inlet The outside air introduced is filtered to block dust and impurities in the outside air and prevent dust particles and impurities from affecting the unit equipment. When the air filter cotton is clogged with dust particles after long-term use, affecting the ventilation volume of the air inlet, the driving motor and the belt drive the two rollers to rotate synchronously, and the air filter cotton that has been used for a long time and is blocked at the relative air inlet position is rolled onto one side of the roller. At the same time, the clean and unused air filter cotton is moved from the other side roller to the relative air inlet position, and the new air filter cotton is used to filter the air entering the unit to prevent the reduction of air cooling and heat dissipation air intake and the substandard heat dissipation effect in the unit. At the same time, it can reduce the need for staff to frequently manually replace the air filter cotton. Only the air filter cotton wrapped on the roller needs to be replaced once for long-term operation, which reduces the labor intensity of staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 This is a schematic cross-sectional view of the internal structure of the present invention;

[0011] Figure 3 For this utility model Figure 2 A magnified schematic diagram of area A in the middle;

[0012] Figure 4 This is a cross-sectional schematic diagram of the installation structure of the axial flow fan of the present utility model;

[0013] Figure 5 For this utility model Figure 4 A magnified schematic diagram of area B in the middle;

[0014] Explanation of the marks in the figure: 1. Cabin; 2. Frame; 3. Main bearing; 4. Blade connecting column; 5. Brake device; 6. Gearbox; 7. Generator; 8. Air outlet; 9. Air inlet; 10. Axial fan; 11. Mounting frame; 12. Roller; 13. Belt; 14. Drive motor; 15. Air filter cotton; 16. Limit column. DETAILED DESCRIPTION

[0015] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a dust removal device for a wind turbine generator set of the present invention in conjunction with the accompanying drawings.

[0016] like Figure 1-5 As shown, the utility model is a dust removal device for a wind turbine generator set, comprising a nacelle 1; a frame 2 is provided in the nacelle 1; a main bearing 3 is rotatably provided on the frame 2 and extends to one side outside the nacelle 1; a plurality of blade connecting columns 4 are provided on the side outside the nacelle 1 of the main bearing 3; a brake device 5 is provided on one side of the main bearing 3 of the frame 2; a gear box 6 is provided on one side of the brake device 5 of the main bearing 3; a generator 7 is provided on one side of the gear box 6; an air outlet 8 is provided on the side and lower part of the nacelle 1 away from the blade connecting columns 4; an air outlet 8 is provided on the side of the nacelle 1 close to the blade connecting columns 4. Air inlets 9 are provided opposite to each other on both sides of one end of the connecting column 4; an axial flow fan 10 is provided in the cabin 1 at a position opposite to the air inlet 9; a mounting frame 11 is provided in the cabin 1 at the upper and lower positions of the air inlet 9; rollers 12 are rotatably provided on both sides of the mounting frame 11; the two rollers 12 are connected by a belt 13; a drive motor 14 is provided on the upper part of one side roller 12 of the mounting frame 11 to drive it to rotate; an air filter cotton 15 is wound around one side roller 12 and then wound around the other roller 12 after passing through the air inlet 9.

[0017] Combine Figure 1-5As shown, an air outlet 8 is provided on one side and the lower part of the nacelle 1, and an air inlet 9 and an axial flow fan 10 provided opposite to the air inlet 9 are used to introduce ambient temperature air into the nacelle 1. The air introduced into the nacelle 1 carries the heat generated during the operation of the equipment such as the brake device 5, the gear box 6, the generator 7 and the like provided on the frame 2 and is discharged through the air outlet 8, thereby achieving air cooling of multiple devices in the nacelle 1 and the overall temperature, increasing the air intake and the air flow rate, and improving the heat dissipation efficiency of the unit, which can effectively reduce the temperature inside the wind turbine unit, reduce the aging of components of the unit equipment, and increase the service life of the equipment.

[0018] The rollers 12 driven by the driving motor 14 and the belt 13 are arranged on both sides of the air inlet 9 of the cabin 1, and the air filter cotton 15 is connected between the two rollers 12. The air filter cotton 15 filters the outside air introduced through the air inlet 9, blocks the dust and impurities in the outside air, and prevents the dust particles and impurities from affecting the unit equipment. When the air filter cotton 15 is blocked by dust particles after long-term use, affecting the ventilation volume of the air inlet 9, the two rollers 12 are driven to rotate synchronously by the driving motor 14 and the belt 13, and the relative air inlet 9 is moved. The air filter cotton 15 that has been used for a long time and is blocked is rolled onto the roller 12 on one side, and the clean and unused air filter cotton 15 is moved from the roller 12 on the other side to a position relative to the air inlet 9, and a new air filter cotton 15 is used to filter the air entering the unit to prevent the reduction of the air intake volume of the air-cooled heat dissipation and the substandard heat dissipation effect in the unit. At the same time, the need for the staff to frequently manually replace the air filter cotton 15 can be reduced. The unit only needs to replace the air filter cotton 15 wound on the roller 12 once to operate for a long time, thereby reducing the labor intensity of the staff.

[0019] The vertical dimension of the air filter cotton 15 is larger than the air inlet 9. The air filter cotton 15 can completely block the position of the air inlet 9, preventing unfiltered external air from entering the interior of the cabin 1 through the gap between the air filter cotton 15 and the air inlet 9, thereby increasing the air filtration effect and further increasing the protection effect on the unit equipment.

[0020] A plurality of limiting posts 16 are provided at the air inlet 9; when the air filter cotton 15 passes through the air inlet 9, it is located between the limiting posts 16 and the air inlet 9. Through the cooperation of a plurality of limiting posts 16, the air filter cotton 15 is effectively restricted to fit at the air inlet 9, thereby increasing the flatness of the fit of the air filter cotton 15 and facilitating the filtering of dust particles by the air filter cotton 15. At the same time, it can prevent the formation of a gap between the air filter cotton 15 and the air inlet 9, causing the outside air to enter the cabin 1 without being filtered, thereby further increasing the sealing and filtering effect of the air filter cotton 15 on the air inlet 9.

[0021] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A dust removal device for a wind turbine generator set, characterized in that: The invention comprises a cabin (1); a frame (2) is provided in the cabin (1); a main bearing (3) is rotatably provided on the frame (2) and extends to one side outside the cabin (1); a plurality of blade connecting columns (4) are provided on the main bearing (3) on one side outside the cabin (1); a brake device (5) is provided on the frame (2) on one side of the main bearing (3); a gear box (6) is provided on the main bearing (3) on one side of the brake device (5); a generator (7) is provided on one side of the gear box (6); an air outlet (8) is provided on the side and lower part of the cabin (1) away from the blade connecting column (4); and a plurality of blade connecting columns (4) are provided on both sides of the cabin (1) on one side close to the blade connecting column (4). An air inlet (9) is provided; an axial flow fan (10) is provided in the cabin (1) at a position relative to the air inlet (9); a mounting frame (11) is provided in the cabin (1) at upper and lower positions of the air inlet (9); rollers (12) are rotatably provided on both sides of the mounting frame (11); the two rollers (12) are connected by a belt (13); a driving motor (14) is provided on the upper part of one roller (12) of the mounting frame (11) to drive the roller (12) to rotate; an air filter cotton (15) is wound around one roller (12) and is wound around the other roller (12) after passing through the air inlet (9).

2. A dust removal device for a wind turbine generator set according to claim 1, characterized in that: The vertical dimension of the air filter cotton (15) is larger than the air inlet (9).

3. A dust removal device for a wind turbine generator set according to claim 1, characterized in that: The air inlet (9) is provided with a plurality of limiting posts (16); when the air filter cotton (15) passes through the air inlet (9), it is located between the limiting posts (16) and the air inlet (9).

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