Tool for cleaning radiating air duct of generator of GE doubly-fed unit

Abstract

The utility model discloses a tool for cleaning a radiating air duct of a generator of a GE doubly-fed unit, which comprises a mounting part, a positioning part and a cleaning part. The front surface of the mounting part is provided with a placing cavity; the driving assembly is arranged in the mounting part, one end of the driving assembly penetrates out of the mounting part and is in transmission connection with an external driving part, the external driving part comprises a servo motor, the driving assembly is driven by the servo motor to rotate, and then the cleaning assembly is driven by the driving assembly to rotate; the cleaning assembly is composed of a cleaning part and a transmission part, and the transmission part is also arranged in the mounting part and is in transmission connection with the driving assembly; through the design, the whole tool is convenient to carry, does not occupy space in the operation process, is simple in use mode and easy to operate, can utilize an electric tool, saves manpower and time, can easily solve the problem of high-temperature alarm caused by blockage of a heat dissipation air duct of the generator, meets the cleaning function, and improves the working efficiency. And the blank in the aspect of cleaning the radiating air duct of the GE fan generator in the prior art is filled.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine generator cooling duct cleaning technology, specifically relating to a tool for cleaning the cooling duct of a GE doubly fed generator. Background Technology

[0002] GE's doubly-fed induction generator (DFIG) is a new type of generator that combines the advantages of asynchronous and synchronous generators. It employs doubly-fed asynchronous power generation technology, with control circuits between the rotor and stator. This results in advantages such as good speed regulation performance, adjustable power factor, improved grid power factor, enhanced system stability, and relatively small excitation capacity. This type of generator can be widely used in renewable energy power generation systems such as wind and hydropower. Particularly in the wind power sector, GE DFIG generators can achieve speed matching with wind turbine rotation, improving the speed and power generation efficiency of the wind turbine.

[0003] The GE wind turbine generator's cooling duct is cylindrical with a small aperture and a length of nearly 2 meters. During long-term operation, a large amount of dust and oil accumulates in the wind turbine, resulting in poor heat dissipation and frequent high-temperature alarms. The wind turbine nacelle has limited space and no special cleaning tools are available. Utility Model Content

[0004] The purpose of this invention is to provide a tool for cleaning the cooling duct of a GE doubly-fed generator, in order to solve the problem mentioned in the background art that there is no tool for cleaning the dust inside the cooling duct of a GE wind turbine generator.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tool for cleaning the heat dissipation duct of a GE doubly-fed generator, comprising a mounting part with a placement cavity on its front surface; a drive assembly disposed within the mounting part, one end of which extends through to the outside of the mounting part and is connected to an external drive component, wherein the external drive component includes a servo motor, which drives the drive assembly to rotate, and the drive assembly then drives the cleaning assembly to rotate, thereby cleaning the inside of the generator heat dissipation duct; the cleaning assembly consists of a cleaning component and a transmission component, wherein: the transmission component is also disposed within the mounting part and is connected to the drive assembly; the cleaning component passes through the axis of the transmission component, and one end of the cleaning component extends into the generator heat dissipation duct.

[0006] Preferably, the mounting part is an outer frame; the drive assembly includes a drive gear disk placed in the mounting part and a drive shaft fixed on the rear surface of the drive gear disk. The drive shaft extends to the outside of the outer frame and is connected to an external drive component. A transmission belt is sleeved on the outer surface of the drive gear disk, and the transmission belt is meshed with the drive component. The drive gear disk and the transmission belt are also meshed. The drive gear disk drives the transmission belt to rotate, and the transmission belt drives the drive component to rotate, thereby achieving high-speed rotation of the cleaning component to clean the inside of the heat dissipation air duct.

[0007] Preferably, the transmission component includes a transmission gear disc meshing with a transmission belt and a connecting sleeve shaft fixed on the rear surface of the transmission gear disc. The transmission gear disc and the connecting sleeve shaft are connected in the middle. The cleaning component is disposed through the middle of the transmission gear disc and the connecting sleeve shaft. The connecting sleeve shaft is connected to the rear surface of the outer frame, thereby realizing the installation of the transmission gear disc and ensuring the normal rotation of the transmission gear disc.

[0008] Preferably, the cleaning component includes a connecting post with a thread at one end and a brush installed on the threaded end of the connecting post. The connecting post is fixedly connected to the transmission gear plate via threads. When the transmission gear plate rotates, it will drive the connecting post and the brush to rotate synchronously at high speed. Before cleaning, the brush is inserted into the heat dissipation duct. When the brush rotates, due to its long length, the whole thing will rotate in an eccentric wave shape, thereby scraping away the dust on the inner wall of the heat dissipation duct. The diameter of the brush is smaller than the inner diameter of the heat dissipation duct, which facilitates the insertion of the brush. At the same time, the brush is made of a flexible material. Alternatively, the brush can be made of a rope and a brush wrapped around the rope, which is easy to bend and can be inserted into the heat dissipation duct in situations with limited space. Only with the high-speed rotation of the brush can the cleaning of the heat dissipation duct be achieved.

[0009] Preferably, retaining rings are provided at both ends of the front surface of the outer frame. The inner area of ​​the retaining ring overlaps the transmission gear plate, while the outer edge of the retaining ring is fixed to the outer frame by bolts. A baffle is installed at the middle of the front surface of the outer frame by bolts. The baffle passes through the axis of the drive gear plate. By setting the retaining rings and the baffle, the drive gear plate and the transmission gear plate can be prevented from separating from the inside of the outer frame, ensuring that the normal transmission is not affected in the later stage.

[0010] Preferably, the front surface of the outer frame is provided with a screw hole for bolts to pass through the retaining ring and the baffle, and the interior of the outer frame is provided with a through hole for the drive shaft and the connecting sleeve shaft to pass through.

[0011] Preferably, a handle is also installed at the bottom of the outer frame, with the middle of the handle recessed inward for easy holding by the staff.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The design of this utility model makes the tool easy to carry, does not take up space during operation, is simple to use and easy to learn. It can be used with power tools, saving manpower and time. It can easily solve the problem of high temperature alarm caused by blockage of generator cooling ducts, and fulfills the cleaning function, filling the gap in the existing technology for cleaning the cooling ducts of GE wind turbine generators. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a rear view of the present invention;

[0016] Figure 3 This is a schematic diagram showing the connection between the brush and the transmission gear plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the outer frame of this utility model.

[0018] In the picture:

[0019] 100. Outer frame; 101. Baffle; 102. Conveyor belt; 103. Retaining ring; 104. Handle; 105. Through hole; 106. Screw hole;

[0020] 200. Drive gear plate; 201. Transmission gear plate; 202. Drive shaft; 203. Connecting sleeve shaft;

[0021] 300, brush; 301, connecting post. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a tool for cleaning the heat dissipation air duct of a GE doubly-fed generator, comprising...

[0024] The mounting section has a placement cavity on its front surface;

[0025] A drive assembly is installed inside the mounting section. One end of the drive assembly extends to the outside of the mounting section and is connected to an external drive component. The external drive component includes a servo motor, which drives the drive assembly to rotate. The drive assembly then drives the cleaning assembly to rotate, thereby cleaning the inside of the generator's cooling duct.

[0026] The cleaning assembly consists of a cleaning component and a transmission component, wherein:

[0027] The transmission components are also located inside the mounting section and are connected to the drive assembly for transmission.

[0028] The cleaning component passes through the shaft of the transmission component, and one end of the cleaning component extends into the generator cooling duct.

[0029] In this embodiment, preferably, the mounting part is an outer frame 100; the drive assembly includes a drive gear 200 placed in the mounting part and a drive shaft 202 fixed on the rear surface of the drive gear 200. The drive shaft 202 extends through to the outside of the outer frame 100 and is connected to an external drive component. A transmission belt 102 is sleeved on the outer surface of the drive gear 200. The transmission belt 102 is meshed with the drive component. The drive gear 200 and the transmission belt 102 are also meshed. The drive gear 200 drives the transmission belt 102 to rotate, and the transmission belt 102 drives the drive component to rotate, thereby achieving high-speed rotation of the cleaning component to clean the inside of the heat dissipation air duct.

[0030] In this embodiment, preferably, the transmission component includes a transmission gear 201 meshing with the transmission belt 102, and a connecting sleeve shaft 203 fixed on the rear surface of the transmission gear 201. The transmission gear 201 and the connecting sleeve shaft 203 are connected in the middle. The cleaning component is disposed through the middle of the transmission gear 201 and the connecting sleeve shaft 203. The connecting sleeve shaft 203 is connected in the middle to the rear surface of the outer frame 100, thereby realizing the installation of the transmission gear 201 and ensuring the normal rotation of the transmission gear 201.

[0031] In this embodiment, preferably, the cleaning component includes a connecting post 301 with a thread at one end and a brush 300 installed on the threaded end of the connecting post 301. The connecting post 301 is fixedly connected to the transmission gear disk 201 by the thread. When the transmission gear disk 201 rotates, it will drive the connecting post 301 and the brush 300 to rotate synchronously at high speed. Before cleaning, the brush 300 is inserted into the heat dissipation duct. When the brush 300 rotates, due to its long length, it will rotate in an eccentric wave shape, thereby scraping away the dust on the inner wall of the heat dissipation duct. The diameter of the brush 300 is smaller than the inner diameter of the heat dissipation duct, which facilitates the insertion of the brush 300. At the same time, the brush 300 is made of flexible material. The brush 300 can also be made of a rope and a brush wrapped around the rope, which is easy to bend and can be inserted into the heat dissipation duct in the case of limited space. Only when the brush 300 rotates at high speed can the cleaning of the heat dissipation duct be achieved.

[0032] In this embodiment, preferably, retaining rings 103 are provided at both ends of the front surface of the outer frame 100. The inner area of ​​the retaining ring 103 overlaps the transmission gear 201, while the outer edge of the retaining ring 103 is fixed to the outer frame 100 by bolts. A baffle 101 is installed at the middle of the front surface of the outer frame 100 by bolts. The baffle 101 passes through the axis of the drive gear 200. By setting the retaining rings 103 and the baffle 101, the drive gear 200 and the transmission gear 201 can be prevented from separating from the inside of the outer frame 100, ensuring that the normal transmission in the later stage is not affected.

[0033] In this embodiment, preferably, the front surface of the outer frame 100 is provided with a screw hole 106 for bolting the retaining ring 103 and the baffle 101, while the inside of the outer frame 100 is provided with a through hole 105 for the drive shaft 202 and the connecting sleeve shaft 203 to pass through.

[0034] In this embodiment, preferably, a handle 104 is also installed at the bottom of the outer frame 100. The middle part of the handle 104 is recessed inward to facilitate the staff to hold it.

[0035] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool for cleaning the cooling air ducts of a GE doubly-fed generator unit, characterized in that: include The mounting section has a placement cavity on its front surface; A drive assembly is disposed inside the mounting section, with one end of the drive assembly extending through to the outside of the mounting section and being connected to an external drive component for transmission. The cleaning assembly consists of a cleaning component and a transmission component, wherein: The transmission component is also located inside the mounting section and is connected to the drive assembly in a transmission manner. The cleaning component passes through the shaft of the transmission component, and one end of the cleaning component extends into the generator cooling duct.

2. The tool for cleaning the heat dissipation duct of a GE doubly-fed generator unit according to claim 1, characterized in that: The mounting part is an outer frame (100); the drive assembly includes a drive gear (200) placed in the mounting part and a drive shaft (202) fixed on the rear surface of the drive gear (200). The drive shaft (202) extends through to the outside of the outer frame (100) and is connected to an external drive component. A transmission belt (102) is fitted on the outer surface of the drive gear (200), and the transmission belt (102) is engaged with a transmission component.

3. The tool for cleaning the heat dissipation duct of a GE doubly-fed generator unit according to claim 2, characterized in that: The transmission component includes a transmission gear disc (201) meshing with a transmission belt (102) and a connecting sleeve shaft (203) fixed on the rear surface of the transmission gear disc (201). The transmission gear disc (201) and the connecting sleeve shaft (203) are connected in the middle. The cleaning component is disposed through the middle of the transmission gear disc (201) and the connecting sleeve shaft (203). The connecting sleeve shaft (203) is connected to the rear surface of the outer frame (100).

4. The tool for cleaning the heat dissipation duct of a GE doubly-fed generator unit according to claim 3, characterized in that: The cleaning component includes a connecting post (301) with threads at one end, and a brush (300) installed on the threaded end of the connecting post (301).

5. The tool for cleaning the heat dissipation duct of a GE doubly-fed generator unit according to claim 3, characterized in that: The outer frame (100) has retaining rings (103) at both ends of its front surface. The inner area of ​​the retaining ring (103) overlaps the transmission gear disk (201), while the outer edge of the retaining ring (103) is fixed to the outer frame (100) by bolts. A baffle (101) is bolted to the middle of the front surface of the outer frame (100), and the baffle (101) passes through the axis of the drive gear disk (200).

6. The tool for cleaning the heat dissipation duct of a GE doubly-fed generator unit according to claim 5, characterized in that: The front surface of the outer frame (100) is provided with a screw hole (106) for bolting the retaining ring (103) and the baffle (101), and the interior of the outer frame (100) is provided with a through hole (105) for the drive shaft (202) and the connecting sleeve shaft (203) to pass through.

7. The tool for cleaning the heat dissipation duct of a GE doubly-fed generator unit according to claim 6, characterized in that: The bottom of the outer frame (100) is also equipped with a handle (104), the middle of which is recessed inward.

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