Circulating cooling device for wind power doubly-fed generator

Abstract

The invention provides a circulating cooling device for a wind power doubly-fed generator, and relates to the technical field of cooling devices.The circulating cooling device comprises a bottom plate and a doubly-fed generator, and the doubly-fed generator is provided with a circulating cooling assembly.The circulating cooling device is characterized in that a first water pump pumps cooling liquid in a cooling liquid treatment box into a second shell through a water outlet pipe; a liquid guide plate guides the cooling liquid to the surface of the doubly-fed generator, so that the doubly-fed generator is cooled by the cooling liquid, then, a second water pump pumps the cooling liquid in a second shell back into a cooling liquid treatment box, the cooling liquid is filtered and purified through a first filter screen, and after cooling is finished, the cooling liquid is discharged through a second water pump; the output end of the transmission motor drives a first transmission wheel, a belt and a second transmission wheel to rotate, so that the belt drives a first fixing block and a first connecting block to move upwards, a first filter screen is lifted out of the cooling liquid treatment box, and attachments on the first filter screen are conveniently cleaned; therefore, the circulating cooling effect of the doubly-fed generator is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of cooling devices, and in particular to a circulating cooling device for a wind power double-fed generator. Background Art

[0002] A wind turbine doubly-fed generator is a device commonly used in wind power generation. A large amount of heat is generated during its operation, especially under high load or high wind speed conditions. In order to ensure the stability of the generator and extend its service life, it must be effectively cooled.

[0003] However, in actual use, the following deficiencies still exist, for example: the existing circulating cooling device for wind doubly-fed generators has a poor circulating cooling effect on the doubly-fed generators. When the temperature inside the generator rises, the resistance of the material will increase, thereby increasing energy loss and reducing power generation efficiency. High temperature may also affect the magnetic field distribution inside the generator, further reducing power generation performance. If the generator is in a high temperature environment for a long time, the insulating material inside the generator will accelerate aging and reduce its service life. High temperature may also cause the lubrication effect of mechanical parts such as bearings to deteriorate, increasing the risk of wear and failure.

[0004] Therefore, the present invention proposes a circulating cooling device for a wind power double-fed generator to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art and to provide a circulating cooling device for a wind power double-fed generator.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a circulating cooling device for a wind power doubly-fed generator, comprising a base plate and a doubly-fed generator, wherein a circulating cooling component is arranged on the doubly-fed generator;

[0007] The circulating cooling component includes a first shell and a coolant treatment box, the first shell is fixedly connected to a second shell, the second shell is fixedly connected to a liquid guide plate, the first shell is fixedly connected to a heat sink, the coolant treatment box is fixedly connected to a water outlet pipe, the coolant treatment box is fixedly connected to a water inlet pipe, the coolant treatment box is fixedly connected to a fixed plate, the fixed plate is rotatably connected to a first transmission wheel, a belt is provided on the first transmission wheel, a second transmission wheel is provided on the belt, a first fixed block is fixedly connected to the belt, a limiting block is fixedly connected to the fixed plate, a first slider is slidably connected to the limiting block, the first slider is fixedly connected to a first connecting block, the first fixed block is fixedly connected to the first connecting block, and the first connecting block is fixedly connected to a first filter.

[0008] As a preferred embodiment, the first shell is fixedly connected to the doubly fed generator, the coolant treatment tank is fixedly connected to the base plate, the other end of the water outlet pipe is fixedly connected to the second shell, and the other end of the water inlet pipe is fixedly connected to the second shell.

[0009] The beneficial effect of adopting the above further scheme is: since the first shell is fixedly connected to the doubly fed generator, the doubly fed generator can cool the circulating cooling assembly and the doubly fed generator; since the coolant treatment box is fixedly connected to the base plate, the base plate can support and fix the coolant treatment box; since the other end of the water outlet pipe is fixedly connected to the second shell, the coolant in the coolant treatment box can flow into the second shell through the water outlet pipe; since the other end of the water inlet pipe is fixedly connected to the second shell, the coolant in the second shell can flow back to the coolant treatment box through the water inlet pipe.

[0010] As a preferred embodiment, a first water pump is installed on the side of the coolant treatment box close to the water outlet pipe, and the water outlet pipe is fixedly connected to the output end of the first water pump. A second water pump is installed on the side of the coolant treatment box close to the water inlet pipe, and the water inlet pipe is fixedly connected to the output end of the second water pump.

[0011] The beneficial effect of adopting the above-mentioned further scheme is: since a first water pump is installed on the side of the coolant treatment box close to the water outlet pipe, and the water outlet pipe is fixedly connected to the output end of the first water pump, when the first water pump is started, the first water pump can pump the coolant in the coolant treatment box into the second outer shell through the water outlet pipe, and since a second water pump is installed on the side of the coolant treatment box close to the water inlet pipe, and the water inlet pipe is fixedly connected to the output end of the second water pump, when the second water pump is started, the second water pump can pump the coolant in the second outer shell back into the coolant treatment box through the water inlet pipe.

[0012] As a preferred implementation, a transmission motor is mounted on the fixed plate, the first transmission wheel is fixedly connected to the output end of the transmission motor, and the second transmission wheel is rotatably connected to the fixed plate.

[0013] The beneficial effect of adopting the above further scheme is: since a transmission motor is installed on the fixed plate, and the first transmission wheel is fixedly connected to the output end of the transmission motor, when the transmission motor is started, the output end of the transmission motor can drive the first transmission wheel to rotate, and since the second transmission wheel is rotationally connected to the fixed plate, the fixed plate can support and limit the rotation of the second transmission wheel.

[0014] As a preferred embodiment, an air-cooled dust-proof component is provided on the first shell, and the air-cooled dust-proof component includes a support plate and a cooling fan, the support plate is fixedly connected to the first shell, the cooling fan is installed on the first shell, the support plate is fixedly connected to a first limit plate, and a second filter is slidably connected inside the support plate.

[0015] The beneficial effect of adopting the above further scheme is: when it is necessary to clean the dust on the second filter, the operator turns the bolt, and the pressure plate is lifted due to the rotation of the bolt. The rotating arm is then rotated to a position that does not affect the removal of the second filter from the support plate, and the second filter is taken out to clean the dust on the second filter.

[0016] As a preferred embodiment, a second fixed block is fixedly connected to the support plate, a limiting slot is provided on the second fixed block, a rotating arm is rotatably connected to the second fixed block, a first limiting rod is fixedly connected to the rotating arm, the first limiting rod is slidably connected in the limiting slot, a bolt is threadedly connected to the rotating arm, and a pressure plate is rotatably connected to the bolt.

[0017] The beneficial effect of adopting the above-mentioned further scheme is: after cleaning, the second filter is put back into the support plate, and the rotating arm is rotated. Through the cooperation of the limit groove and the first limit rod, the rotation of the rotating arm can be limited. Then, the bolt is tightened so that the pressure plate fixes the second filter in the support plate, thereby solving the technical problem of dustproofing the cooling fan to facilitate cleaning of the second filter.

[0018] As a preferred embodiment, a first vibration damping assembly is provided on the base plate, and the first vibration damping assembly includes a connecting plate, the connecting plate is fixedly connected to the first shell, a sliding column is fixedly connected to the connecting plate, a cylinder is slidably connected to the sliding column, a support block is fixedly connected to the cylinder, a rotating rod is rotatably connected to the connecting plate, and a second slider is slidably connected in the support block.

[0019] The beneficial effect of adopting the above further scheme is that when the doubly fed generator generates vibration, the force of the doubly fed generator is transmitted to the sliding column, the sliding column slides in the cylinder, and then the rotating rod drives the second slider to slide in the support block, so that the second slider pushes the second limit rod to move outward.

[0020] As a preferred embodiment, the other end of the rotating rod is rotatably connected to the second sliding block, the second sliding block is fixedly connected to the second limiting rod, the second limiting rod is slidably connected to the support block, the second limiting rod is provided with a first telescopic spring, one end of the first telescopic spring is fixedly connected to the support block, the other end of the first telescopic spring is fixedly connected to the second limiting rod, and the support block is fixedly connected to the second limiting plate.

[0021] The beneficial effect of adopting the above further scheme is: since one end of the first telescopic spring is fixedly connected to the support block, and the other end of the first telescopic spring is fixedly connected to the second limit rod, the first telescopic spring can provide elastic force to the second slider, thereby alleviating the technical problem of vibration generated by the doubly fed generator during operation.

[0022] As a preferred embodiment, a second vibration damping assembly is provided on the base plate, and the second vibration damping assembly includes a support frame, the support frame is fixedly connected to the base plate, a damping rod is fixedly connected to the support frame, the other end of the damping rod is fixedly connected to a second connecting block, the second connecting block is fixedly connected to the first housing, a second telescopic spring is provided on the damping rod, one end of the second telescopic spring is fixedly connected to the support frame, and the other end of the second connecting block is fixedly connected to the second connecting block.

[0023] The beneficial effect of adopting the above further scheme is that when the doubly-fed generator produces lateral shaking during operation, the damping rod and the second telescopic spring cooperate to reduce the lateral force generated by the doubly-fed generator and prevent the vibration from affecting the operation.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are:

[0025] 1. In the present invention, an operator starts a first water pump, and the first water pump draws the coolant in the coolant treatment box into the second shell through the outlet pipe, and the coolant is guided to the surface of the doubly fed generator by the provided liquid guide plate, so that the coolant cools the doubly fed generator. Subsequently, the second water pump is started, and the second water pump draws the coolant in the second shell back into the coolant treatment box, and the coolant is filtered and purified by the first filter screen. After the cooling work is completed, the transmission motor is started, and the output end of the transmission motor drives the first transmission wheel, the belt and the second transmission wheel to rotate, so that the belt drives the first fixed block and the first connecting block to move upward, so that the first filter screen is lifted to the outside of the coolant treatment box, which is convenient for cleaning the attachments on the first filter screen, thereby enhancing the technical problem of the circulating cooling effect of the doubly fed generator.

[0026] 2. When the dust on the second filter needs to be cleaned, the operator tightens the bolt. Due to the rotation of the bolt, the pressure plate is lifted, and then the rotating arm is rotated to a position that does not affect the removal of the second filter from the support plate. The second filter is taken out and the dust on the second filter is cleaned. After cleaning, the second filter is put back into the support plate, and the rotating arm is rotated. Through the cooperation of the limit groove and the first limit rod, the rotation of the rotating arm can be limited. Subsequently, the bolt is tightened so that the pressure plate fixes the second filter in the support plate, thereby solving the technical problem of dustproofing the cooling fan to facilitate the cleaning of the second filter.

[0027] 3. When the doubly-fed generator vibrates, the force of the doubly-fed generator is transmitted to the sliding column, and the sliding column slides in the cylinder. Subsequently, the rotating rod drives the second slider to slide in the support block, so that the second slider pushes the second limit rod to move outward. Since one end of the first telescopic spring is fixedly connected to the support block, and the other end of the first telescopic spring is fixedly connected to the second limit rod, the first telescopic spring can provide elastic force to the second slider, thereby alleviating the technical problem of vibration generated by the doubly-fed generator during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a circulating cooling device for a wind power double-fed generator according to the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of a first housing of a circulating cooling device for a wind-powered double-fed generator according to the present invention;

[0030] Figure 3 A schematic diagram of the structure of a coolant treatment box of a circulating cooling device for a wind-powered double-fed generator according to the present invention;

[0031] Figure 4 It is a schematic diagram of the lifting structure of the first filter screen of a circulating cooling device for a wind power double-fed generator according to the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of an air-cooled dust-proof component of a circulating cooling device for a wind-powered double-fed generator according to the present invention;

[0033] Figure 6 This is a schematic structural diagram of a first vibration reduction component of a circulating cooling device for a wind-powered double-fed generator according to the present invention;

[0034] Figure 7 The present invention is a schematic structural diagram of a second vibration reduction component of a circulating cooling device for a wind power double-fed generator.

[0035] Reference numerals:

[0036] 1. Base plate; 2. Double-fed generator;

[0037] 3. Circulation cooling assembly; 31. First housing; 32. Second housing; 33. Liquid guide plate; 34. Heat sink; 35. Coolant treatment box; 36. Water outlet pipe; 37. Water inlet pipe; 38. First water pump; 39. Second water pump; 310. Fixed plate; 311. Transmission motor; 312. First transmission wheel; 313. Belt; 314. Second transmission wheel; 315. First fixed block; 316. Limit block; 317. First slider; 318. First connecting block; 319. First filter;

[0038] 4. Air-cooled dustproof assembly; 41. Support plate; 42. Cooling fan; 43. First limit plate; 44. Second filter; 45. Second fixing block; 46. Limit groove; 47. Rotating arm; 48. First limit rod; 49. Bolt; 410. Press plate;

[0039] 5. First vibration reduction assembly; 51. Connecting plate; 52. Sliding column; 53. Cylinder; 54. Support block; 55. Rotating rod; 56. Second sliding block; 57. Second limiting rod; 58. First telescopic spring; 59. Second limiting plate;

[0040] 6. Second vibration reduction assembly; 61. Support frame; 62. Damping rod; 63. Second connecting block; 64. Second telescopic spring. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0042] like Figure 1-Figure 4 As shown, this embodiment provides a technical solution: a circulating cooling device for a wind power doubly-fed generator, comprising a base plate 1 and a doubly-fed generator 2, and a circulating cooling component 3 is arranged on the doubly-fed generator 2;

[0043] like Figure 1-Figure 4As shown, the circulating cooling assembly 3 includes a first shell 31 and a coolant treatment box 35, the first shell 31 is fixedly connected to the second shell 32, the second shell 32 is fixedly connected to the liquid guide plate 33, the first shell 31 is fixedly connected to the heat sink 34, the coolant treatment box 35 is fixedly connected to the water outlet pipe 36, the coolant treatment box 35 is fixedly connected to the water inlet pipe 37, the coolant treatment box 35 is fixedly connected to the fixing plate 310, the fixing plate 310 is rotatably connected to the first transmission wheel 312, and the first transmission wheel 312 is provided with a belt 33. 13, a second transmission wheel 314 is provided on the belt 313, a first fixed block 315 is fixedly connected to the belt 313, a limiting block 316 is fixedly connected to the fixing plate 310, a first slider 317 is slidably connected to the limiting block 316, a first connecting block 318 is fixedly connected to the first slider 317, the first fixed block 315 is fixedly connected to the first connecting block 318, a first filter screen 319 is fixedly connected to the first connecting block 318, and the operator first starts the first water pump 38, which pumps the coolant in the coolant treatment box 35 through the water outlet pipe 36. The coolant is pumped into the second housing 32. A liquid guide plate 33 is provided in the second housing 32. Its function is to evenly guide the coolant to the surface of the doubly fed generator 2, so as to achieve effective cooling of the generator. After the cooling process is completed, the operator then starts the second water pump 39. The function of the water pump is to pump the coolant in the second housing 32 back into the coolant treatment box 35. During the reflux process, the coolant will pass through the first filter screen 319 for filtration and purification to ensure the cleanliness of the water quality and the normal operation of the system. When the entire cooling work is completed, in order to keep the system clean and operate efficiently, it is necessary to start the transmission motor 311. The output end of the transmission motor 311 drives the first transmission wheel 312, the belt 313 and the second transmission wheel 314 to rotate, so that the belt 313 can drive the first fixing block 315 and the first connecting block 318 to move upward, and then lift the first filter screen 319 to the outside of the coolant treatment box 35. The purpose of this is to facilitate the operator to clean the attachments on the first filter screen 319, thereby enhancing the circulation cooling effect of the doubly fed generator 2.

[0044] The above solution still has the problem that the double-fed generator 2 cannot reduce vibration when it is working. Figure 1-Figure 4As shown: the first shell 31 is fixedly connected to the doubly fed generator 2, the coolant treatment box 35 is fixedly connected to the bottom plate 1, the other end of the water outlet pipe 36 is fixedly connected to the second shell 32, and the other end of the water inlet pipe 37 is fixedly connected to the second shell 32. Since the first shell 31 is fixedly connected to the doubly fed generator 2, the doubly fed generator 2 can cool the circulating cooling component 3 to the doubly fed generator 2. Since the coolant treatment box 35 is fixedly connected to the bottom plate 1, the bottom plate 1 can support and fix the coolant treatment box 35. Since the other end of the water outlet pipe 36 is fixedly connected to the second shell 32, so that the coolant in the coolant treatment box 35 can flow into the second shell 32 through the water outlet pipe 36. Since the other end of the water inlet pipe 37 is fixedly connected to the second shell 32, the coolant in the second shell 32 can flow back to the coolant treatment box 35 through the water inlet pipe 37. A first water pump 38 is installed on the side of the coolant treatment box 35 close to the water outlet pipe 36. The water outlet pipe 36 is fixedly connected to the output end of the first water pump 38. A second water pump 39 is installed on the side of the coolant treatment box 35 close to the water inlet pipe 37. The water inlet pipe 37 is fixedly connected to the output end of the second water pump 39. A first water pump 38 is installed on one side of the coolant treatment box 35 close to the water outlet pipe 36, and the water outlet pipe 36 is fixedly connected to the output end of the first water pump 38, so that when the first water pump 38 is started, the first water pump 38 can pump the coolant in the coolant treatment box 35 into the second shell 32 through the water outlet pipe 36. Since a second water pump 39 is installed on one side of the coolant treatment box 35 close to the water inlet pipe 37, and the water inlet pipe 37 is fixedly connected to the output end of the second water pump 39, when the second water pump 39 is started, the second water pump 39 can pump the coolant in the second shell 32 back to the coolant treatment box 35 through the water inlet pipe 37. A transmission motor 311 is installed on the fixed plate 310, a first transmission wheel 312 is fixedly connected to the output end of the transmission motor 311, and a second transmission wheel 314 is rotatably connected to the fixed plate 310. Since the transmission motor 311 is installed on the fixed plate 310 and the first transmission wheel 312 is fixedly connected to the output end of the transmission motor 311, when the transmission motor 311 is started, the output end of the transmission motor 311 can drive the first transmission wheel 312 to rotate. Since the second transmission wheel 314 is rotatably connected to the fixed plate 310, the fixed plate 310 can support and limit the rotation of the second transmission wheel 314.

[0045] like Figure 1-Figure 2 as well as Figure 5As shown, an air-cooled dust-proof component 4 is provided on the first housing 31, and the air-cooled dust-proof component 4 includes a support plate 41 and a cooling fan 42. The support plate 41 is fixedly connected to the first housing 31, and the cooling fan 42 is installed on the first housing 31. A first limiting plate 43 is fixedly connected to the support plate 41, and a second filter 44 is slidably connected in the support plate 41. When it is necessary to clean the dust on the second filter 44, the operator screws the bolt 49. Due to the rotation of the bolt 49, the pressing plate 410 is lifted, and then the rotating arm 47 is rotated to a position that does not affect the removal of the second filter 44 from the support plate 41, and the second filter 44 is taken out to clean the dust on the second filter 44, and the support plate 41 is A second fixed block 45 is fixedly connected, a limiting groove 46 is provided on the second fixed block 45, a rotating arm 47 is rotatably connected to the second fixed block 45, a first limiting rod 48 is fixedly connected to the rotating arm 47, the first limiting rod 48 is slidably connected in the limiting groove 46, a bolt 49 is threadedly connected to the rotating arm 47, a pressing plate 410 is rotatably connected to the bolt 49, after cleaning, the second filter screen 44 is put back into the support plate 41, the rotating arm 47 is rotated, and the limiting groove 46 and the first limiting rod 48 cooperate to limit the rotation of the rotating arm 47, and then the bolt 49 is screwed so that the pressing plate 410 fixes the second filter screen 44 in the support plate 41;

[0046] like Figure 6 As shown, a first vibration reduction assembly 5 is provided on the base plate 1, and the first vibration reduction assembly 5 includes a connecting plate 51, the connecting plate 51 is fixedly connected to the first housing 31, a sliding column 52 is fixedly connected to the connecting plate 51, a cylinder 53 is slidably connected to the sliding column 52, a support block 54 is fixedly connected to the cylinder 53, a rotating rod 55 is rotatably connected to the connecting plate 51, and a second slider 56 is slidably connected in the support block 54. When the doubly fed generator 2 vibrates, the force of the doubly fed generator 2 is transmitted to the sliding column 52, and the sliding column 52 slides in the cylinder 53. Subsequently, the rotating rod 55 drives the second slider 56 to slide in the support block 54, so that the second slider 56 pushes the second limit rod 57 to move outward. The other end of the rotating rod 55 is rotatably connected to the second slider 56, the second slider 56 is fixedly connected with a second limiting rod 57, the second limiting rod 57 is slidably connected to the support block 54, the second limiting rod 57 is provided with a first telescopic spring 58, one end of the first telescopic spring 58 is fixedly connected to the support block 54, the other end of the first telescopic spring 58 is fixedly connected to the second limiting rod 57, and the support block 54 is fixedly connected with a second limiting plate 59. Since one end of the first telescopic spring 58 is fixedly connected to the support block 54, and the other end of the first telescopic spring 58 is fixedly connected to the second limiting rod 57, the first telescopic spring 58 can provide elastic force to the second slider 56;

[0047] like Figure 1 as well as Figure 7As shown, a second vibration reduction assembly 6 is provided on the base plate 1, and the second vibration reduction assembly 6 includes a support frame 61, the support frame 61 is fixedly connected to the base plate 1, a damping rod 62 is fixedly connected to the support frame 61, the other end of the damping rod 62 is fixedly connected to a second connecting block 63, the second connecting block 63 is fixedly connected to the first housing 31, a second telescopic spring 64 is provided on the damping rod 62, one end of the second telescopic spring 64 is fixedly connected to the support frame 61, and the other end of the second connecting block 63 is fixedly connected to the second connecting block 63. When the doubly fed generator 2 generates lateral shaking during operation, through the cooperation of the damping rod 62 and the second telescopic spring 64, the damping rod 62 and the second telescopic spring 64 can reduce the lateral force generated by the doubly fed generator 2 to prevent the vibration from affecting the operation.

[0048] Working principle:

[0049] like Figure 1-Figure 7As shown, the operator first starts the first water pump 38, which pumps the coolant in the coolant treatment box 35 into the second shell 32 through the outlet pipe 36. In the second shell 32, a liquid guide plate 33 is provided, and its function is to evenly guide the coolant to the surface of the double-fed generator 2, so as to achieve effective cooling of the generator. The cooling fan 42 is started, and the cooling fan 42 blows natural wind into between the first shell 31 and the second shell 32. Through the provided liquid guide plate 33, the liquid guide plate 33 can cool the coolant in the second shell 32, and the wind blown by the cooling fan 42 can cool the heat sink 34. After the cooling process is completed, the operator then starts the second water pump 39, and the function of the water pump is to cool the second shell 3 2 is pumped back into the coolant treatment box 35. During the reflux process, the coolant will pass through the first filter screen 319 for filtration and purification to ensure the cleanliness of the water quality and the normal operation of the system. When the entire cooling work is completed, in order to keep the system clean and running efficiently, it is necessary to start the transmission motor 311. The output end of the transmission motor 311 drives the first transmission wheel 312, the belt 313 and the second transmission wheel 314 to rotate, so that the belt 313 can drive the first fixed block 315 and the first connecting block 318 to move upward, and then lift the first filter screen 319 to the outside of the coolant treatment box 35. The purpose of this is to facilitate the operator to clean the attachments on the first filter screen 319. 0 is installed with a transmission motor 311, and the first transmission wheel 312 is fixedly connected to the output end of the transmission motor 311, so that when the transmission motor 311 is started, the output end of the transmission motor 311 can drive the first transmission wheel 312 to rotate, and since the second transmission wheel 314 is rotatably connected to the fixing plate 310, the fixing plate 310 can support and limit the rotation of the second transmission wheel 314. When it is necessary to clean the dust on the second filter screen 44, the operator screws the bolt 49. Due to the rotation of the bolt 49, the pressing plate 410 is lifted, and then the rotating arm 47 is rotated to a position that does not affect the removal of the second filter screen 44 from the support plate 41, and the second filter screen 44 is taken out to clean the dust on the second filter screen 44. After cleaning, the first The second filter screen 44 is put back into the support plate 41, and the rotating arm 47 is rotated. Through the cooperation of the limiting groove 46 and the first limiting rod 48, the rotation of the rotating arm 47 can be limited. Then, the bolt 49 is tightened so that the pressure plate 410 fixes the second filter screen 44 in the support plate 41. When the doubly fed generator 2 vibrates, the force of the doubly fed generator 2 is transmitted to the sliding column 52, and the sliding column 52 slides in the cylinder 53. Then, the rotating rod 55 drives the second slider 56 to slide in the support block 54, so that the second slider 56 pushes the second limiting rod 57 to move outward. Since one end of the first telescopic spring 58 is fixedly connected to the support block 54, and the other end of the first telescopic spring 58 is fixedly connected to the second limiting rod 57,The first telescopic spring 58 can provide elastic force to the second slider 56. When the double-fed generator 2 produces lateral shaking during operation, the damping rod 62 and the second telescopic spring 64 cooperate to reduce the lateral force generated by the double-fed generator 2, thereby preventing the vibration from affecting the operation.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A circulating cooling device for a wind power doubly-fed generator, comprising a base plate (1) and a doubly-fed generator (2), characterized in that: The double-fed generator (2) is provided with a circulating cooling component (3); The circulating cooling assembly (3) comprises a first shell (31) and a coolant treatment box (35); the first shell (31) is fixedly connected to a second shell (32); the second shell (32) is fixedly connected to a liquid guide plate (33); the first shell (31) is fixedly connected to a heat sink (34); the coolant treatment box (35) is fixedly connected to a water outlet pipe (36); the coolant treatment box (35) is fixedly connected to a water inlet pipe (37); the coolant treatment box (35) is fixedly connected to a fixed plate (310); the fixed plate (310) is rotatably connected to a first transmission wheel (312) ), a belt (313) is arranged on the first transmission wheel (312), a second transmission wheel (314) is arranged on the belt (313), a first fixed block (315) is fixedly connected to the belt (313), a limiting block (316) is fixedly connected to the fixing plate (310), a first sliding block (317) is slidably connected to the limiting block (316), a first connecting block (318) is fixedly connected to the first sliding block (317), the first fixing block (315) is fixedly connected to the first connecting block (318), and a first filter screen (319) is fixedly connected to the first connecting block (318).

2. A circulating cooling device for a wind power doubly-fed generator according to claim 1, characterized in that: The first housing (31) is fixedly connected to the doubly-fed generator (2), the coolant treatment tank (35) is fixedly connected to the base plate (1), the other end of the water outlet pipe (36) is fixedly connected to the second housing (32), and the other end of the water inlet pipe (37) is fixedly connected to the second housing (32).

3. A circulating cooling device for a wind power doubly-fed generator according to claim 1, characterized in that: A first water pump (38) is installed on the side of the coolant treatment box (35) close to the water outlet pipe (36), and the water outlet pipe (36) is fixedly connected to the output end of the first water pump (38). A second water pump (39) is installed on the side of the coolant treatment box (35) close to the water inlet pipe (37), and the water inlet pipe (37) is fixedly connected to the output end of the second water pump (39).

4. A circulating cooling device for a wind power doubly-fed generator according to claim 1, characterized in that: A transmission motor (311) is mounted on the fixed plate (310), the first transmission wheel (312) is fixedly connected to the output end of the transmission motor (311), and the second transmission wheel (314) is rotatably connected to the fixed plate (310).

5. A circulating cooling device for a wind power doubly-fed generator according to claim 1, characterized in that: An air-cooled dustproof component (4) is provided on the first shell (31), and the air-cooled dustproof component (4) includes a support plate (41) and a heat dissipation fan (42), the support plate (41) is fixedly connected to the first shell (31), the heat dissipation fan (42) is installed on the first shell (31), a first limit plate (43) is fixedly connected to the support plate (41), and a second filter (44) is slidably connected inside the support plate (41).

6. A circulating cooling device for a wind power doubly-fed generator according to claim 5, characterized in that: A second fixed block (45) is fixedly connected to the support plate (41), a limiting groove (46) is provided on the second fixed block (45), a rotating arm (47) is rotatably connected to the second fixed block (45), a first limiting rod (48) is fixedly connected to the rotating arm (47), the first limiting rod (48) is slidably connected in the limiting groove (46), a bolt (49) is threadedly connected to the rotating arm (47), and a pressure plate (410) is rotatably connected to the bolt (49).

7. A circulating cooling device for a wind power doubly-fed generator according to claim 1, characterized in that: A first vibration damping assembly (5) is arranged on the bottom plate (1), and the first vibration damping assembly (5) comprises a connecting plate (51), the connecting plate (51) is fixedly connected to the first housing (31), a sliding column (52) is fixedly connected to the connecting plate (51), a cylinder (53) is slidably connected to the sliding column (52), a supporting block (54) is fixedly connected to the cylinder (53), a rotating rod (55) is rotatably connected to the connecting plate (51), and a second sliding block (56) is slidably connected inside the supporting block (54).

8. A circulating cooling device for a wind power doubly-fed generator according to claim 7, characterized in that: The other end of the rotating rod (55) is rotatably connected to the second sliding block (56), the second sliding block (56) is fixedly connected to a second limiting rod (57), the second limiting rod (57) is slidably connected to the supporting block (54), the second limiting rod (57) is provided with a first telescopic spring (58), one end of the first telescopic spring (58) is fixedly connected to the supporting block (54), the other end of the first telescopic spring (58) is fixedly connected to the second limiting rod (57), and the supporting block (54) is fixedly connected to a second limiting plate (59).

9. A circulating cooling device for a wind power doubly-fed generator according to claim 1, characterized in that: A second vibration damping assembly (6) is arranged on the base plate (1), and the second vibration damping assembly (6) comprises a support frame (61), the support frame (61) is fixedly connected to the base plate (1), a damping rod (62) is fixedly connected to the support frame (61), the other end of the damping rod (62) is fixedly connected to a second connecting block (63), the second connecting block (63) is fixedly connected to the first housing (31), a second telescopic spring (64) is arranged on the damping rod (62), one end of the second telescopic spring (64) is fixedly connected to the support frame (61), and the other end of the second connecting block (63) is fixedly connected to the second connecting block (63).

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