Cooling system of wind driven generator

Abstract

The invention relates to the technical field of wind driven generators, and discloses a wind driven generator cooling system which comprises a wind turbine generator set, the wind turbine generator set comprises a housing, a driving main shaft, a transmission, a generator and a blade seat, and the lower end of the housing communicates with an air inlet mechanism for introducing environmental wind into the housing; the air inlet mechanism comprises an air inlet bin and a filtering bin which are communicated with each other and located on the inner side and the outer side of the housing correspondingly, an anti-blocking mechanism for cleaning impurities attached to the outer wall of the filtering bin is arranged in the filtering bin, and a speed adjusting mechanism for transmitting power of the driving main shaft to the anti-blocking mechanism is arranged in the air inlet bin. Compared with the prior art, the anti-blocking device has the beneficial effects that the air inlet mechanism adaptively adjusts the air induction amount according to the heating value, meanwhile, the anti-blocking mechanism is driven to move to sweep the air inlet mechanism, efficient air inlet of the air inlet mechanism is guaranteed through mechanical linkage without arranging a power part, energy waste is reduced, and the service life of the air inlet mechanism is prolonged. The service lives of the transmission and the generator are prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbines, and specifically refers to a cooling system for a wind turbine. Background Art

[0002] A wind turbine is a device that converts wind energy into electrical energy. It usually consists of a housing, a drive main shaft, a transmission, a generator, a blade seat, blades, an inverter, a tower, and a control system. The wind drives the blades to rotate synchronously with the blade seat. The blade seat drives the drive main shaft to rotate at a low speed. The transmission increases the low-speed rotation of the drive main shaft to a high speed and transmits it to the generator. The generator converts the mechanical energy of the high-speed rotation into electrical energy and outputs it. With the joint cooperation of the inverter and the control system, the purpose of wind power generation is achieved.

[0003] When cooling existing wind turbines, an axial flow fan is usually installed inside the housing to introduce ambient air into the housing to dissipate heat from heat-generating components such as the transmission and the generator inside the housing. In order to meet the heat dissipation requirements in extreme cases, the air volume of the axial flow fan is usually set much larger than the heat dissipation requirement during use, resulting in waste of energy. Moreover, when the existing wind turbine cooling system is in use, impurities in the environment are likely to block the air inlet, resulting in poor air intake, hindering the ambient air from entering the housing, reducing the cooling capacity, increasing the temperature of heat-generating components such as the transmission and the generator, causing mechanical deformation or failure of electronic components, and reducing the service life. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a cooling system for a wind turbine.

[0005] To solve the above technical problem, the technical solution provided by the present invention is: A cooling system for a wind turbine, including a wind turbine unit. The wind turbine unit includes a housing, a drive main shaft, a transmission, a generator, and a blade seat. The blade seat is connected to the drive main shaft. The drive main shaft, the transmission, and the generator are all arranged inside the housing. The lower end of the housing is connected and provided with an air inlet mechanism for introducing ambient air into the housing. The air inlet mechanism includes an air inlet chamber and a filter chamber that are connected to each other and are respectively located on the inner and outer sides of the housing. Multiple groups of filter holes are opened on the filter chamber. An air inlet rotating column is rotatably arranged in the air inlet chamber. Air inlet blades are arranged on the air inlet rotating column. One end of the air inlet rotating column extending out of the air inlet chamber is provided with an air inlet bevel gear. A drive bevel gear meshing with the air inlet bevel gear is arranged on the drive main shaft. A clogging prevention mechanism for intermittently cleaning impurities attached to the outer wall of the filter chamber as the air inlet rotating column rotates is arranged in the filter chamber. A speed regulation mechanism for transmitting the power of the air inlet rotating column to the clogging prevention mechanism is arranged in the air inlet chamber.

[0006] As an improvement, the anti-blocking mechanism includes a sealing bottom plate hermetically arranged at the lower end of the filter bin. A reciprocating sliding column is slidably arranged on the sealing bottom plate along the axial direction of the sealing bottom plate. The reciprocating sliding column moves up and down reciprocally as the air inlet rotating column rotates. A positioning sliding groove is arranged on the sealing bottom plate. An anti-blocking sliding column is slidably arranged in the positioning sliding groove. An anti-blocking inserting rod matching with the filter holes is arranged on the anti-blocking sliding column. A matching connecting rod rotatably connected with the anti-blocking sliding column is rotatably arranged on the reciprocating sliding column.

[0007] As an improvement, a fixing frame is arranged in the air inlet bin. A rotating disc driven to rotate by a driving main shaft is rotatably arranged on the fixing frame. A rotating sleeve is arranged at the lower end of the rotating disc. A rotating shifting plate is arranged on the outer side of the rotating sleeve. A limiting sliding block slidably matched with the rotating shifting plate is arranged at the upper end of the reciprocating sliding column. The limiting sliding block includes a sliding inclined plane and a sliding plane which are communicated with each other. A reset spring connected with the sealing bottom plate is arranged at the lower end of the reciprocating sliding column.

[0008] As an improvement, the speed regulating mechanism includes a speed regulating gear ring arranged in the air inlet bin. A speed regulating support connected with the rotating disc is arranged in the air inlet bin. A planetary gear meshing with the speed regulating gear ring is rotatably arranged on the speed regulating support. A speed regulating gear meshing with the planetary gear is arranged at the lower end of the air inlet rotating column.

[0009] As an improvement, an air outlet communicated with the external environment is arranged at one end of the cover shell. An air outlet cover corresponding to the air outlet is arranged on the cover shell. A cooling mechanism which is communicated with the air inlet bin and evenly blows out the ambient air in the air inlet bin is arranged in the cover shell.

[0010] As an improvement, the cooling mechanism includes cooling boxes symmetrically arranged in the cover shell. An air inlet pipe communicated with the air inlet bin is communicatedly arranged on the cooling box. A plurality of air outlet pipes are communicatedly arranged on the cooling box. The air outlet pipes are of an L-shaped structure. A regulating valve is arranged on each of the plurality of air outlet pipes. A protective grille is arranged at the air outlet end of each of the plurality of air outlet pipes.

[0011] As an improvement, a filter plate is arranged at one end of the cooling box close to the air inlet pipe. A dust-sweeping mechanism for cleaning the filter plate is arranged on the cooling box. The dust-sweeping mechanism includes a dust-sweeping sliding frame arranged on the cover shell. A dust-sweeping sliding block is slidably arranged in the dust-sweeping sliding frame. A brush plate matched with the filter plate is slidably arranged in the cooling box. A dust-sweeping connecting rod connected with the brush plate is arranged on the dust-sweeping sliding block. A vibrating plate is rotatably arranged in the cooling box. The vibrating plate is of an L-shaped structure. One end of the vibrating plate is intermittently matched with the brush plate. A vibrating spring connected with the cooling box is arranged at the lower end of the vibrating plate. A dust-sweeping cross bar is arranged on one side of the dust-sweeping sliding block. A driving shifting rod intermittently matched with the dust-sweeping cross bar is arranged on the driving bevel gear. A dust-sweeping spring connected with the dust-sweeping sliding frame is arranged at the lower end of the dust-sweeping sliding block.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the driving main shaft drives the air intake mechanism to introduce ambient cold air to cool the heat generating components such as the transmission and the generator while performing power generation operation. At the same time, the air intake mechanism drives the anti-blocking mechanism to move and clean the air intake mechanism through the speed regulating mechanism. Through mechanical linkage, the air intake mechanism is ensured to have efficient air intake without the need to set up power components, thereby reducing energy waste, extending the life of the transmission and the generator, and reducing the cost of manual inspection. Specifically: 1. The driving main shaft rotates to drive the driving bevel gear, and the driving bevel gear drives the air inlet rotor to rotate through the air inlet bevel gear. The air inlet blades rotate at high speed. The ambient air is filtered through the filter bin and then introduced into the cover through the air inlet bin. The ambient air entering the cover contacts with the heat-generating components such as the transmission and generator for heat exchange, thereby cooling the heat-generating components such as the transmission and generator. The speed of the air inlet blades changes in real time with the change of the driving main shaft. The air inlet blades can adaptively adjust the induced air volume according to the heat generation of the heat-generating components such as the transmission and generator, so as to avoid the transmission and generator being in an "overcooling" state for a long time and avoid unnecessary energy waste. At the same time, the temperature of the transmission and generator is accurately controlled to ensure that the transmission and generator operate in the high-efficiency range, extend the service life, avoid mechanical deformation of the transmission and generator or failure of electronic components caused by drastic temperature fluctuations, and reduce the frequency of manual inspections and manual adjustment of the damper; 2. The air inlet column drives the speed regulating gear to perform high-speed circular motion synchronously, and the cooperation of the planetary gear and the speed regulating gear ring drives the speed regulating bracket to perform slow circular rotation. The speed regulating bracket drives the rotating disk to rotate, and the rotating disk drives the rotating dial to rotate through the rotating sleeve. The reciprocating slide column performs up and down reciprocating motion. The reciprocating slide column drives the anti-blocking slide column to slide back and forth along the positioning slide groove through the matching connecting rod. The anti-blocking slide column drives the anti-blocking plug rod to cyclically extend out of the filter hole on the filter bin and then recover it to the filter bin, thereby improving the air intake efficiency of the filter bin, reducing air flow resistance, effectively filtering impurities in the air, preventing impurities from entering the inside of the cover, keeping the inside of the cover clean, preventing impurities from accumulating and causing overheating or abnormal wear of the transmission and generator, and extending the service life of the equipment. Furthermore, the self-cleaning of the filter bin can reduce downtime and maintenance time; 3. By controlling the opening and closing of different regulating valves, key areas can be selected for cooling according to the heat generated by heat-generating components such as transmissions and generators, further improving the accuracy of refrigeration, ensuring that the transmissions and generators operate in a high-efficiency range, extending their service life, and avoiding mechanical deformation of the transmissions and generators or failure of electronic components caused by drastic temperature fluctuations; 4. The filter chamber performs coarse filtering on the ambient air, and the filter plate performs secondary filtering on the ambient air to reduce the dust entering the cover and prevent dust from accumulating on heating components such as the transmission and generator. This improves the heat dissipation effect while preventing dust from damaging the transmission and generator, thereby extending the service life of the transmission and generator. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of a cooling system for a wind turbine according to the present invention.

[0014] Figure 2 is an exploded view of a cooling system for a wind turbine according to the present invention.

[0015] Figure 3 is a sectional view of a cooling system for a wind turbine according to the present invention.

[0016] Figure 4 is a schematic structural diagram of an anti-blocking mechanism of a cooling system for a wind turbine according to the present invention.

[0017] Figure 5 is an exploded view of an anti-blocking mechanism of a cooling system for a wind turbine according to the present invention.

[0018] Figure 6 is a schematic structural diagram of the mating state of the air inlet chamber and the filter chamber of a cooling system for a wind turbine according to the present invention.

[0019] Figure 7 is an exploded view of the air inlet mechanism and the speed regulating mechanism of a cooling system for a wind turbine according to the present invention.

[0020] Figure 8 is a sectional view of the air inlet mechanism of a cooling system for a wind turbine according to the present invention.

[0021] Figure 9 is a schematic structural diagram of a cooling system for a wind turbine according to the present invention with the housing part removed.

[0022] Figure 10 is a schematic structural diagram of the cooling mechanism of a cooling system for a wind turbine according to the present invention.

[0023] Figure 11 is an exploded view of the cooling mechanism of a cooling system for a wind turbine according to the present invention.

[0024] Figure 12 is a sectional view of the cooling mechanism of a cooling system for a wind turbine according to the present invention.

[0025] Figure 13 is a cooling mechanism of a cooling system for a wind turbine according to the present invention Figure 12 Enlarged view of part A.

[0026] As shown in the figure: 1. Wind turbine; 11. Housing; 12. Driving main shaft; 13. Transmission; 14. Generator; 15. Air outlet hood; 16. Blade seat; 2. Air inlet mechanism; 21. Air inlet chamber; 22. Filter chamber; 23. Air inlet rotating column; 231. Air inlet bevel gear; 232. Driving bevel gear; 2321. Driving lever; 233. Air inlet blade; 3. Speed regulating mechanism; 31. Speed regulating gear; 32. Speed regulating bracket; 33. Planetary gear; 34. Speed regulating gear ring; 4. Anti-blocking mechanism; 41. Sealing bottom plate; 411. Anti-blocking sliding column; 412. Anti-blocking plug rod; 413. Matching connecting rod; 414. Positioning sliding groove; 42. Reciprocating sliding column; 421. Return spring; 422. Limit slider; 43. Fixed frame; 431. Rotating disk; 432. Rotating sleeve; 433. Rotating dial; 5. Cooling mechanism; 51. Cooling box; 52. Air inlet pipe; 53. Air outlet pipe; 531. Protection grille; 532. Control valve; 54. Filter plate; 55. Ash cleaning mechanism; 551. Ash cleaning sliding frame; 552. Ash cleaning slider; 553. Ash cleaning cross bar; 554. Ash cleaning spring; 555. Ash cleaning connecting rod; 556. Brush plate; 557. Vibration plate; 558. Vibration spring. Detailed implementation mode

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Combined with the attached Figure 1 、 attached Figure 2 and attached Figure 3 As shown, a cooling system for a wind turbine includes a wind turbine 1, and the wind turbine 1 includes a housing 11, a driving main shaft 12, a transmission 13, a generator 14 and a blade seat 16. The blade seat 16 is connected to the driving main shaft 12, and the driving main shaft 12, the transmission 13 and the generator 14 are all arranged inside the housing 11. The driving main shaft 12 is connected to the input end of the transmission 13, and the output end of the transmission 13 is connected to the input end of the generator 14; The lower end of the housing 11 is communicated with an air inlet mechanism 2 for introducing ambient wind into the housing 11. The air inlet mechanism 2 includes an air inlet chamber 21 and a filter chamber 22 that are communicated with each other and are respectively located inside and outside the housing 11. Multiple groups of filter holes are opened on the filter chamber 22. An anti-blocking mechanism 4 for intermittently cleaning impurities attached to the outer wall of the filter chamber 22 as the driving main shaft 12 rotates is arranged in the filter chamber 22. A speed regulating mechanism 3 for transmitting the power of the driving main shaft 12 to the anti-blocking mechanism 4 is arranged in the air inlet chamber 21. One end of the housing 11 is provided with an air outlet communicated with the external environment, and an air outlet hood 15 corresponding to the air outlet is arranged on the housing 11. The opening of the air outlet hood 15 faces downward.

[0029] Working principle of the present invention: In the normal working state of the present invention, the blade seat 16 drives the driving main shaft 12 to rotate slowly, the transmission 13 increases the slow rotation of the driving main shaft 12 to a fast rotation, and the generator 14 converts the mechanical energy of the high-speed rotation into electrical energy and outputs it, thus completing the power generation operation; During this process, the driving main shaft 12 rotates and drives the air inlet mechanism 2 to introduce ambient air into the housing 11 through the air inlet chamber 21 after filtering by the filter chamber 22. The ambient air cools the heat-generating components such as the transmission 13 and the generator 14 and then flows out through the air outlet. The air outlet hood 15 with the opening facing downwards prevents the blockage of the air outlet. Since the air intake volume of the air inlet mechanism 2 changes with the rotation speed of the driving main shaft 12, that is, the higher the rotation speed of the driving main shaft 12, the larger the air intake volume of the air inlet mechanism 2, and on the contrary, the lower the rotation speed of the driving main shaft 12, the smaller the air intake volume of the air inlet mechanism 2. And the greater the rotation speed of the driving main shaft 12, the higher the heat generation of the heat-generating components such as the transmission 13 and the generator 14. Therefore, the air inlet mechanism 2 can adaptively adjust the air intake volume according to the heat generation of the heat-generating components such as the transmission 13 and the generator 14, avoid the transmission 13 and the generator 14 being in the "over-cooling" state for a long time, avoid unnecessary energy waste, and at the same time, accurately control the temperature of the transmission 13 and the generator 14, ensure that the transmission 13 and the generator 14 operate in the high-efficiency range, extend the service life, avoid mechanical deformation or electronic component failure of the transmission 13 and the generator 14 caused by violent temperature fluctuations, and reduce the frequency of manual inspection and manual adjustment of the air damper; Further, the driving main shaft 12 transmits power to the speed regulating mechanism 3, the speed regulating mechanism 3 transmits power to the anti-blocking mechanism 4, and the anti-blocking mechanism 4 moves intermittently to clean the impurities attached to the outer wall of the filter chamber 22 and keep the filter chamber 22 unobstructed.

[0030] Combined with attached Figure 2 、attached Figure 3 、attached Figure 6 、attached Figure 7 and attached Figure 8 As shown, an air inlet rotating column 23 is rotatably provided in the air inlet chamber 21. An air inlet paddle 233 is provided on the air inlet rotating column 23. One end of the air inlet rotating column 23 extending out of the air inlet chamber 21 is provided with an air inlet bevel gear 231, and a driving bevel gear 232 meshing with the air inlet bevel gear 231 is provided on the driving main shaft 12.

[0031] Working principle of the air inlet blade 233: Drive the main shaft 12 to rotate, and the driven main shaft 12 drives the driven bevel gear 232 connected thereto to rotate. The driven bevel gear 232 drives the air inlet rotating column 23 to rotate through the engaged air inlet bevel gear 231. The air inlet rotating column 23 drives the air inlet blade 233 to rotate. Since the transmission ratio between the driven bevel gear 232 and the air inlet bevel gear 231 is small, the slowly rotating driven main shaft 12 can drive the air inlet blade 233 to rotate at a high speed. Then, the ambient air is filtered through the filter chamber 22 and introduced into the housing 11 through the air inlet chamber 21. The ambient air entering the housing 11 exchanges heat with the heat-generating components such as the transmission 13 and the generator 14, thereby cooling the heat-generating components such as the transmission 13 and the generator 14. The engagement between the air inlet bevel gear 231 and the driven bevel gear 232 enables the rotation speed of the air inlet blade 233 to change in real time with the change of the driven main shaft 12, achieving the purpose of adaptively adjusting the air intake volume according to the heat generation amount of the heat-generating components such as the transmission 13 and the generator 14.

[0032] Combined with the attached Figure 3 、attached Figure 4 、attached Figure 5 、attached Figure 7 and attached Figure 8 As shown in the attached drawings, the anti-blocking mechanism 4 includes a sealing bottom plate 41 hermetically arranged at the lower end of the filter chamber 22. A reciprocating slide column 42 is slidably arranged on the sealing bottom plate 41 along the axial direction of the sealing bottom plate 41. The reciprocating slide column 42 reciprocates up and down as the air inlet rotating column 23 rotates. Four groups of positioning sliding grooves 414 are equidistantly arranged on the sealing bottom plate 41 along the circumferential direction of the sealing bottom plate 41. An anti-blocking slide column 411 is slidably arranged in the positioning sliding groove 414. An anti-blocking insertion rod 412 matching with the filter holes is arranged on the anti-blocking slide column 411. Two groups of matching connecting rods 413 are rotatably arranged on the reciprocating slide column 42 and are rotatably connected to the anti-blocking slide column 411. A fixing frame 43 is arranged in the air inlet chamber 21. A rotating disc 431 driven by the driven main shaft 12 to rotate is rotatably arranged on the fixing frame 43. A rotating sleeve 432 is arranged at the lower end of the rotating disc 431. A rotating dial 433 is arranged on the outer side of the rotating sleeve 432. Two groups of rotating dials 433 are symmetrically arranged. A limiting slider 422 slidably matched with the rotating dial 433 is arranged at the upper end of the reciprocating slide column 42. The limiting slider 422 includes a sliding inclined surface and a sliding flat surface which are communicated with each other. A return spring 421 connected to the sealing bottom plate 41 is arranged at the lower end of the reciprocating slide column 42.

[0033] Working principle of the anti-blocking mechanism 4: The driven main shaft 12 drives the rotating disc 431 to rotate in a circle. During this process, the rotating disc 431 drives the rotating dial 433 to rotate synchronously through the rotating sleeve 432. During this process, the rotating dial 433 slidably cooperates with the sliding inclined surface and the sliding flat surface of the limiting slider 422, and there is a height difference between the sliding inclined surface and the sliding flat surface; When the rotating dial 433 slides along the sliding inclined surface of the limit slider 422 towards the sliding plane, the rotating dial 433 presses down on the limit slider 422, and the reciprocating slide column 42 slides downward synchronously and presses the return spring 421. The return spring 421 is stressed and contracts to store energy. At this time, the reciprocating slide column 42 drives the anti-blocking slide column 411 to slide axially away from the sealing bottom plate 41 along the positioning chute 414 through the cooperating connecting rod 413. The anti-blocking slide column 411 drives the anti-blocking plug rod 412 to move synchronously and extend out of the filter hole on the outer wall of the filter chamber 22, cleaning the impurities adhering to the outer wall of the filter chamber 22 that cause blockage of the filter hole. Further, when the rotating dial 433 slides along the sliding plane of the limit slider 422 towards the sliding inclined surface, the rotating dial 433 reduces the limit on the limit slider 422. At this time, the return spring 421 gradually resets, and the return spring 421 drives the reciprocating slide column 42 to move upward. The reciprocating slide column 42 drives the anti-blocking slide column 411 to slide axially towards the sealing bottom plate 41 along the positioning chute 414 through the cooperating connecting rod 413. The anti-blocking slide column 411 drives the anti-blocking plug rod 412 to move synchronously and retract into the filter chamber 22. At this time, the filter chamber 22 can intake air freely.

[0034] Combined with Fig. Figure 3 、Fig. Figure 4 、Fig. Figure 7 and Fig. Figure 8 As shown, the speed regulation mechanism 3 includes a speed regulation gear ring 34 arranged in the air inlet chamber 21. A speed regulation support 32 connected to the rotating disc 431 is arranged in the air inlet chamber 21. A planetary gear 33 meshing with the speed regulation gear ring 34 is rotatably arranged on the speed regulation support 32. Three groups of planetary gears 33 are provided, and a speed regulation gear 31 meshing with the planetary gear 33 is arranged at the lower end of the air inlet rotating column 23.

[0035] Working principle of the speed regulation mechanism 3: During the high-speed rotation of the air inlet rotating column 23, the air inlet rotating column 23 drives the connected speed regulation gear 31 to perform high-speed circular motion synchronously. The speed regulation gear 31 synchronously drives the meshing planetary gear 33 to rotate. Since the planetary gear 33 meshes with the speed regulation gear ring 34, the three groups of planetary gears 33 revolve along the speed regulation gear ring 34, thereby driving the speed regulation support 32 to slowly perform circular rotation. The speed regulation support 32 drives the rotating disc 431 to rotate, thus achieving the purpose of converting the high-speed rotation of the air inlet rotating column 23 into the low-speed rotation of the rotating disc 431.

[0036] Combined with Fig. Figure 2 、Fig. Figure 3 、Fig. Figure 7 、Fig. Figure 9 and Fig. Figure 10As shown in the figure, a cooling mechanism 5 is provided inside the housing 11, which is connected to the air inlet chamber 21 and evenly blows out the ambient air in the air inlet chamber 21. The cooling mechanism 5 includes cooling boxes 51 symmetrically arranged inside the housing 11. An air inlet pipe 52 connected to the air inlet chamber 21 is communicated with the cooling box 51. A plurality of air outlet pipes 53 are communicated with the cooling box 51. The air outlet pipe 53 is of an L-shaped structure and can be inclined towards the air outlet cover 15. A regulating valve 532 is provided on each of the plurality of air outlet pipes 53, and a protective grille 531 is provided at the air outlet end of each of the plurality of air outlet pipes 53.

[0037] The working principle of the cooling mechanism 5: The ambient air in the air inlet chamber 21 enters the cooling box 51 through the air inlet pipe 52 and then flows out through the air outlet pipes 53, so as to realize the uniform blowing of the ambient air. In this process, by controlling the opening and closing of different regulating valves 532, the key areas can be selected for key cooling according to the heat generation of heat-generating components such as the transmission 13 and the generator 14, further improving the accuracy of refrigeration, ensuring that the transmission 13 and the generator 14 operate in the efficient range, extending the service life, and avoiding mechanical deformation or electronic component failure of the transmission 13 and the generator 14 caused by severe temperature fluctuations.

[0038] Combined with attached Figure 9 、attached Figure 10 、attached Figure 11 、attached Figure 12 and attached Figure 13 As shown in the figure, a filter plate 54 is provided at one end of the cooling box 51 close to the air inlet pipe 52. A dust-sweeping mechanism 55 for cleaning the filter plate 54 is provided on the cooling box 51. A sewage outlet is communicated with the cooling box 51, and a valve is provided on the sewage outlet. The dust-sweeping mechanism 55 includes a dust-sweeping slide frame 551 provided on the housing 11. A dust-sweeping slider 552 is slidably arranged inside the dust-sweeping slide frame 551. A brush plate 556 cooperating with the filter plate 54 is slidably arranged inside the cooling box 51. A dust-sweeping connecting rod 555 connected to the brush plate 556 is provided on the dust-sweeping slider 552. A vibrating plate 557 is rotatably arranged inside the cooling box 51. The vibrating plate 557 is of an L-shaped structure. One end of the vibrating plate 557 is intermittently cooperated with the brush plate 556. A vibrating spring 558 connected to the cooling box 51 is provided at the lower end of the vibrating plate 557. A dust-sweeping cross bar 553 is provided on one side of the dust-sweeping slider 552. A driving dial rod 2321 intermittently cooperating with the dust-sweeping cross bar 553 is provided on the driving bevel gear 232. A dust-sweeping spring 554 connected to the dust-sweeping slide frame 551 is provided at the lower end of the dust-sweeping slider 552.

[0039] Working principle of the dust sweeping mechanism 55: After the ambient air is roughly filtered by the filter bin 22, the dust in the ambient air enters the cooling box 51 through the air inlet pipe 52 with the air flow and contacts the filter plate 54. The filter plate 54 filters the dust. At the same time, the driving bevel gear 232 drives the driving lever 2321 to rotate. While the driving lever 2321 rotates, it intermittently presses the dust sweeping cross bar 553. While the dust sweeping slider 552 slides downward along the dust sweeping carriage 551, it presses the dust sweeping spring 554. The dust sweeping spring 554 contracts under force. When the driving lever 2321 disengages from the dust sweeping cross bar 553, the dust sweeping spring 554 resets and drives the dust sweeping slider 552 to synchronously reset upward, thereby causing the dust sweeping slider 552 to slide up and down reciprocally; When the dust sweeping slider 552 moves downward, the dust sweeping connecting rod 555 drives the brush plate 556 to move downward. The brush plate 556 cleans the filter plate 54. After that, the brush plate 556 contacts the vibrating plate 557. The vibrating plate 557 rotates and presses the vibrating spring 558. The vibrating plate 557 vibrates the filter plate 54 to enhance the cleaning effect on the filter plate 54. After that, the dust sweeping slider 552 moves upward. The dust sweeping connecting rod 555 drives the brush plate 556 to move upward. The brush plate 556 cleans the filter plate 54. The brush plate 556 disengages from the vibrating plate 557. The vibrating spring 558 drives the vibrating plate 557 to reset, preparing for the next vibration.

[0040] In the specific implementation of the present invention, the blade seat 16 drives the driving main shaft 12 to rotate slowly. The transmission 13 increases the slow rotation of the driving main shaft 12 to a fast rotation. The generator 14 converts the mechanical energy of the high-speed rotation into electrical energy and outputs it to achieve power generation; During this process, the driving main shaft 12 drives the air inlet rotating column 23 to rotate through the cooperation of the driving bevel gear 232 and the air inlet bevel gear 231. The air inlet paddle 233 rotates at a high speed. The ambient air is filtered by the filter bin 22 and then introduced into the cooling box 51 through the air inlet chamber 21 and flows out through the air outlet pipe 53. The uniform blowing of the ambient air controls the opening and closing of different regulating valves 532 so that the ambient air exchanges heat with the heat-generating components such as the transmission 13 and the generator 14, thereby cooling the heat-generating components such as the transmission 13 and the generator 14; At the same time, the air inlet rotating column 23 drives the speed regulating gear 31 to synchronously perform a high-speed circular motion. Through the cooperation of the planetary gear 33 and the speed regulating gear ring 34, the speed regulating bracket 32 slowly rotates in a circular motion. The speed regulating bracket 32 drives the rotating disk 431 to rotate. The rotating disk 431 drives the rotating dial 433 to rotate through the rotating sleeve 432. The reciprocating sliding column 42 performs an up-and-down reciprocating motion. At this time, the reciprocating sliding column 42 drives the anti-blocking sliding column 411 to reciprocally slide along the positioning chute 414 through the cooperation connecting rod 413. The anti-blocking sliding column 411 drives the anti-blocking plug 412 to cycle through the motion of extending out of the filter holes on the filter bin 22 and then retracting into the filter bin 22, enabling the filter bin 22 to freely intake air; Further, the ambient air after being roughly filtered by the filter bin 22 contacts the filter plate 54, driving the bevel gear 232 to drive the driving lever 2321 to rotate. While the driving lever 2321 rotates, it intermittently squeezes the dust-sweeping cross bar 553. The dust-sweeping slider 552 reciprocates up and down along the dust-sweeping carriage 551. The dust-sweeping connecting rod 555 drives the brush plate 556 to move, and the brush plate 556 cleans the filter plate 54. After that, the brush plate 556 contacts the vibration plate 557, and the vibration plate 557 vibrates the filter plate 54 to prevent the filter plate 54 from being blocked.

[0041] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative work without departing from the purpose of the present invention creation, they shall fall within the protection scope of the present invention.

Claims

1. A wind turbine cooling system, comprising a wind turbine set (1), wherein the wind turbine set (1) comprises a casing (11), a driving main shaft (12), a transmission (13), a generator (14) and a blade seat (16), wherein the blade seat (16) is connected to the driving main shaft (12), and the driving main shaft (12), the transmission (13) and the generator (14) are all arranged inside the casing (11), characterized in that: The lower end of the housing (11) is connected to an air inlet mechanism (2) for introducing ambient air into the housing (11), the air inlet mechanism (2) comprising an air inlet bin (21) and a filter bin (22) which are connected to each other and respectively located on the inner and outer sides of the housing (11), the filter bin (22) being provided with a plurality of groups of filter holes, an air inlet rotating column (23) being rotatably provided in the air inlet bin (21), an air inlet blade (233) being provided on the air inlet rotating column (23), an air inlet bevel gear (231) being provided at one end of the air inlet rotating column (23) extending out of the air inlet bin (21), and a drive bevel gear (232) meshing with the air inlet bevel gear (231) being provided on the drive main shaft (12); The filter bin (22) is provided with an anti-blocking mechanism (4) for intermittently cleaning impurities attached to the outer wall of the filter bin (22) as the air inlet rotating column (23) rotates, and the air inlet bin (21) is provided with a speed regulating mechanism (3) for transmitting power of the air inlet rotating column (23) to the anti-blocking mechanism (4).

2. A wind turbine cooling system according to claim 1, characterized in that: The anti-blocking mechanism (4) comprises a sealing bottom plate (41) sealed at the lower end of the filter bin (22); a reciprocating slide column (42) is provided on the sealing bottom plate (41) and slides axially along the sealing bottom plate (41); the reciprocating slide column (42) reciprocates up and down as the air inlet rotating column (23) rotates; a positioning slide groove (414) is provided on the sealing bottom plate (41); an anti-blocking slide column (411) is slidably provided in the positioning slide groove (414); an anti-blocking plug rod (412) that cooperates with the filter hole is provided on the anti-blocking slide column (411); and a matching connecting rod (413) that is rotatably connected to the anti-blocking slide column (411) is rotatably provided on the reciprocating slide column (42).

3. A wind turbine cooling system according to claim 2, characterized in that: A fixed frame (43) is provided in the air inlet bin (21), a rotating disk (431) driven to rotate by a driving main shaft (12) is rotatably provided on the fixed frame (43), a rotating sleeve (432) is provided at the lower end of the rotating disk (431), a rotating dial plate (433) is provided on the outer side of the rotating sleeve (432), a limiting slider (422) slidably matched with the rotating dial plate (433) is provided at the upper end of the reciprocating slide column (42), the limiting slider (422 comprises a sliding inclined surface and a sliding plane that are connected to each other, and a return spring (421) connected to the sealing bottom plate (41) is provided at the lower end of the reciprocating slide column (42).

4. A wind turbine cooling system according to claim 3, characterized in that: The speed regulating mechanism (3) comprises a speed regulating gear ring (34) arranged in an air inlet bin (21); a speed regulating bracket (32) connected to a rotating disk (431) is arranged in the air inlet bin (21); a planetary gear (33) meshing with the speed regulating gear ring (34) is rotatably arranged on the speed regulating bracket (32); and a speed regulating gear (31) meshing with the planetary gear (33) is arranged at the lower end of the air inlet rotating column (23).

5. A wind turbine cooling system according to claim 1, characterized in that: An air outlet communicating with the external environment is provided at one end of the cover shell (11), an air outlet cover (15) corresponding to the air outlet is provided on the cover shell (11), and a cooling mechanism (5) communicating with the air inlet bin (21) and evenly blowing out the ambient air in the air inlet bin (21) is provided inside the cover shell (11).

6. A wind turbine cooling system according to claim 5, characterized in that: The cooling mechanism (5) comprises a cooling box (51) symmetrically arranged in the housing (11); an air inlet pipe (52) connected to the air inlet bin (21) is provided on the cooling box (51); a plurality of air outlet pipes (53) are provided on the cooling box (51); the air outlet pipes (53) are L-shaped structures; a regulating valve (532) is provided on each of the plurality of air outlet pipes (53); and a protective grille (531) is provided at each of the air outlet ends of the plurality of air outlet pipes (53).

7. A wind turbine cooling system according to claim 6, characterized in that: A filter plate (54) is provided at one end of the cooling box (51) close to the air inlet pipe (52), and a dust sweeping mechanism (55) for cleaning the filter plate (54) is provided on the cooling box (51). The dust sweeping mechanism (55) comprises a dust sweeping carriage (551) provided on the cover shell (11), a dust sweeping slider (552) slidably provided in the dust sweeping carriage (551), a brush plate (556) slidably provided in the cooling box (51) and cooperating with the filter plate (54), a dust sweeping connecting rod (555) connected to the brush plate (556) is provided on the dust sweeping slider (552), and a vibration plate (557) is rotatably provided in the cooling box (51), the vibration plate (557) is an L-shaped structure, one end of the vibration plate (557) is intermittently cooperating with the brush plate (556), and a vibration spring (558) connected to the cooling box (51) is provided at the lower end of the vibration plate (557); A dust sweeping cross bar (553) is provided on one side of the dust sweeping slider (552), a driving lever (2321) intermittently engaged with the dust sweeping cross bar (553) is provided on the driving bevel gear (232), and a dust sweeping spring (554) connected to the dust sweeping carriage (551) is provided at the lower end of the dust sweeping slider (552).

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