A withdrawable high-voltage switchgear with a dry-type transformer

Abstract

The present application relates to a withdrawable high-voltage switchgear with a dry-type transformer, belonging to the technical field of transformers. It includes a cabinet body and a transformer bank. The transformer bank is arranged inside the cabinet body. Inside the cabinet body, there are a fan mechanism for reducing the temperature of the transformer bank, a flow-increasing mechanism for increasing the air flow speed inside the cabinet body, a temperature control switch mechanism for controlling the opening of the fan mechanism and the flow-increasing mechanism, and a vibration damping mechanism for reducing the vibration of the transformer bank. Through a four-stage heat dissipation method, the present application realizes automatic switching of the heat dissipation mode according to the temperature on the surface of the transformer bank, so as to reduce the energy consumption for heat dissipation consumed by the transformer during operation, thereby improving the working efficiency of the transformer.

Description

Technical Field

[0001] This application relates to the technical field of transformers, and particularly to a withdrawable high-voltage switchgear with a dry-type transformer. Background Art

[0002] Dry-type transformers are widely used in places such as local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Simply put, they refer to transformers in which the iron core and windings are not immersed in insulating oil.

[0003] In the related art, during the operation of a dry-type transformer, a fan or other heat dissipation mechanism generally continuously dissipates heat from the dry-type transformer. And for some dry-type transformers, they can maintain a safe temperature by air cooling under light load conditions, while continuous heat dissipation causes energy waste in the dry-type transformer. Summary of the Invention

[0004] In order to reduce the energy consumption of the dry-type transformer itself, this application provides a withdrawable high-voltage switchgear with a dry-type transformer.

[0005] The withdrawable high-voltage switchgear with a dry-type transformer provided by this application adopts the following technical solutions:

[0006] A withdrawable high-voltage switchgear with a dry-type transformer, including a cabinet body and a transformer bank, the transformer bank is arranged inside the cabinet body, and it is characterized in that: a fan mechanism for dissipating heat inside the cabinet body and a flow increasing mechanism for increasing the air flow speed inside the cabinet body are arranged inside the cabinet body, and

[0007] a temperature control switch mechanism is also arranged inside the cabinet body. The temperature control switch mechanism includes a heat dissipation ring arranged on the transformer bank, a plurality of sealed tubes are arranged on the heat dissipation ring, a piston block is slidably connected inside the sealed tube, a bearing ring is arranged on the side of the piston block away from the transformer bank, the outer ring of the bearing ring is fixedly connected with the piston block, a rotating column is fixedly connected to the inner ring of the bearing ring, a tooth groove is formed inside the rotating column, a tooth column is slidably connected inside the tooth groove, heat dissipation plates are slidably connected to both opposite sides of the cabinet body, a rotating shaft vertically penetrates through the center of the heat dissipation plate, the outer wall of the rotating shaft is fixedly connected with the heat dissipation plate, a rotating tube is rotatably connected inside the rotating shaft, the tooth column extends into the rotating tube and is fixedly connected with the inner wall of the rotating tube, an inert gas is filled inside the sealed tube, and the expansion or contraction of the inert gas controls the heat dissipation plate to slide away from or close to the transformer bank, and the heat dissipation plate opens or disconnects the fan mechanism and the flow increasing mechanism during the sliding process;

[0008] The vibration-proof mechanism includes a vibration-proof plate arranged below the transformer group, a plurality of vibration-proof springs are arranged on the vibration-proof plate, an adjustment plate is arranged at one end of the vibration-proof spring away from the transformer group, the adjustment plate is slidably connected to the shell, the adjustment plate and the heat dissipation plate are linked by a gear set, and the heat dissipation plate controls the adjustment plate to slide closer to or away from the vibration-proof plate during the sliding process.

[0009] By adopting the above technical solution, when the transformer just starts to operate, the inside of the cabinet can be ventilated only through the heat sink to reduce the temperature of the transformer. As the working power increases or the working time increases, the transformer gradually heats up, causing the inert gas to expand due to heat and push the heat sink away from the transformer, thereby opening the cabinet and increasing the ventilation efficiency of the cabinet.

[0010] When increasing ventilation fails to effectively curb the rise in transformer temperature, the inert gas further expands due to heat, causing the heat sink to slide and open the fan mechanism to cool the transformer. If the rise in transformer temperature still cannot be curbed, the heat sink continues to slide and open the flow increase mechanism to increase the heat exchange between the cabinet and the outside air. When the temperature of the transformer group drops, the inert gas contracts and causes the heat sink to slide closer to the transformer group, thereby closing the flow increase mechanism and the fan mechanism, allowing the heat dissipation gear to be switched at any time.

[0011] The present application uses a four-stage heat dissipation method to automatically switch the heat dissipation mode according to the surface temperature of the transformer group, so as to reduce the heat dissipation energy consumed by the transformer itself during operation, thereby improving the working efficiency of the transformer.

[0012] In addition, in the related art, when the dry-type transformer is in operation, vibration may occur, and the frequency of vibration will increase with the increase of power. The vibration-proof performance of the vibration-proof spring can be improved by moving and compressing the heat sink, thereby reducing the vibration of the dry-type transformer.

[0013] Optionally, the fan mechanism includes a right-angle lever rotatably connected to the inner wall of the cabinet for controlling the fan switch, a plurality of racks are arranged on the heat dissipation plate, a rotating seat is rotatably connected to the cabinet, a gear is arranged on the lower end face of the rotating seat, the gear is meshed with the rack, a push rod is threadedly connected to the internal thread of the rotating seat, the push rod is threadedly connected to the cabinet, a spiral bevel gear is arranged on the upper end face of the push rod, and the spiral bevel gear slides toward or away from the right-angle lever.

[0014] By adopting the above technical solution, the sliding of the heat sink plate drives the rotating seat to rotate through the rack, and the rotation of the rotating seat causes the top rod to rotate. Since the top rod is threadedly connected to the cabinet body, the sliding of the top rod on the cabinet body is realized, and the spiral bevel gear plate pushes the right-angle lever through the sliding of the top rod, thereby opening or closing the button for controlling the fan through the right-angle lever.

[0015] Optionally, the fan mechanism includes a power shaft extending into the cabinet body. An umbrella gear ring is axially sleeved on the power shaft. An output rod is rotatably connected in the cabinet body. The umbrella gear ring is chain-engaged with a spiral bevel gear disc through the output rod.

[0016] By adopting the above technical solution, after the fan power shaft rotates, it drives the output rod to rotate, and the rotation of the output rod drives the spiral bevel gear disc to rotate.

[0017] Optionally, the flow increasing mechanism includes a connecting disc rotatably connected to the heat dissipation plate. The rotating column penetrates through the connecting piece. A fan blade is fixedly connected to the end of the tooth column. A transmission rod is rotatably connected in the cabinet body. The rotating column is connected to the spiral bevel gear disc through the transmission rod.

[0018] By adopting the above technical solution, the rotation of the spiral bevel gear disc drives the transmission rod to rotate, and after the transmission rod rotates, it drives the fan blade to rotate, increasing the heat dissipation of the transformer bank and enhancing the air flow rate in the cabinet body.

[0019] Optionally, a gear is arranged between the rotating column and the transmission rod, and the rotating column is chain-engaged with the transmission rod through the gear.

[0020] By adopting the above technical solution, the gear chain-engages the rotating column and the transmission rod, making the rotation directions of the rotating column and the transmission rod the same, so that the fan blades on both sides rotate in the same way, effectively improving the heat exchange rate in the cabinet body.

[0021] Optionally, the vibration damping mechanism further includes a plurality of adjusting rods penetrating through the adjusting plate. The adjusting rods are engaged with the rack. The lower end surface of the adjusting rod is threadedly connected with an adjusting seat arranged in the cabinet body. A push plate is axially sleeved on the adjusting rod and arranged on the lower end surface of the adjusting plate. The push plate pushes the adjusting plate to slide towards the vibration damping plate.

[0022] By adopting the above technical solution, the rotation of the adjusting rod makes the push plate push the adjusting plate towards the vibration damping plate, thereby compressing the vibration damping spring to increase the anti-vibration performance of the vibration damping spring.

[0023] Optionally, a limiting rod is arranged on the heat dissipation plate. The limiting rod extends into the cabinet body and is clamped with the cabinet body.

[0024] By adopting the above technical solution, the distance of the sliding of the heat dissipation plate is limited by the limiting rod, avoiding the heat dissipation plate falling off from the sealing tube.

[0025] Optionally, a plurality of heat dissipation fins are arranged on the heat dissipation ring.

[0026] By adopting the above technical solution, the heat dissipation fins on the heat dissipation ring can increase the heat dissipation efficiency of the transformer bank.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The present application realizes a fully automatic switching of the heat dissipation mode according to the surface temperature of the transformer bank through a four-stage heat dissipation method, so as to reduce the heat dissipation energy consumption consumed by the transformer itself during operation, thereby improving the working efficiency of the transformer.

[0029] 2. By moving and compressing the anti-vibration spring along with the heat dissipation plate, the anti-vibration performance of the anti-vibration spring is improved, thereby reducing the vibration of the dry-type transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the present application;

[0031] Figure 2 is a schematic diagram of the overall structure of the present application;

[0032] Figure 3 is Figure 2 a partial cross-sectional structure schematic diagram along the A-A plane in, mainly showing the tooth column, the sealing tube, and the heat dissipation plate;

[0033] Figure 4 is Figure 2 a partial cross-sectional structure schematic diagram along the A-A plane in, mainly showing the right-angle lever and the spiral bevel gear disk;

[0034] Figure 5 is Figure 2 a partial enlarged structure schematic diagram at B in;

[0035] Figure 6 is Figure 2 a partial cross-sectional structure schematic diagram along the C-C plane in, mainly showing the rotating wheel and the belt;

[0036] Figure 7 is Figure 2 a partial cross-sectional structure schematic diagram along the D-D plane in, mainly showing the rotating wheel and the connecting wheel;

[0037] Figure 8 is Figure 3 a partial enlarged structure schematic diagram at E in.

[0038] Description of the drawings: 1. Cabinet body; 101. Ventilation hole; 2. Fan mechanism; 201. Switch; 202. Right-angle lever; 203. Bevel gear ring; 204. Output rod; 3. Flow-increasing mechanism; 301. Transmission rod; 302. Connecting rod; 303. Rotating wheel; 304. Connecting wheel; 4. Temperature control switch mechanism; 401. Heat dissipation ring; 402. Tooth column; 403. Sealing tube; 404. Piston block; 405. Spiral bevel gear disc; 406. Rotating column; 407. Heat dissipation plate; 408. Rack; 409. Thrust rod; 5. Vibration damping mechanism; 501. Vibration damping plate; 502. Connecting spring; 503. Vibration damping spring; 504. Adjusting plate; 505. Adjusting seat; 506. Adjusting rod; 507. Pushing plate; 6. Rotating shaft; 7. Rotating tube; 8. Limiting rod; 801. Clamping plate; 9. Partition board; 10. Rotating seat; 11. Fixed frame; 12. Sealing ring; 13. Protective frame; 14. Lever groove; 15. Lever piece; 16. Servo motor; 17. Transmission frame; 18. Dust-proof net; 19. Heat exchange hole; 20. Vibration damping groove; 21. Heat dissipation fin. Detailed implementation manners

[0039] The following will further elaborate on this application in conjunction with the attached Figure 1 - attached Figure 8 drawings.

[0040] A withdrawable high-voltage switchgear with a dry-type transformer, referring to Figure 1 , includes a cabinet body 1, on the surface of the cabinet body 1 are provided with a number of ventilation holes 101, the inner wall of the cabinet body 1 is fixedly connected with a transformer bank, and on the cabinet body 1 are provided with a fan mechanism 2 for dissipating heat inside the cabinet body 1, a flow-increasing mechanism 3 for increasing the air flow rate inside the cabinet body 1, a temperature control switch mechanism 4 for controlling the opening of the fan mechanism 2 and the flow-increasing mechanism 3, and a vibration damping mechanism 5 for reducing the vibration of the transformer bank.

[0041] Referring to Figure 1 , Figure 2 , Figure 3 , the temperature control switch mechanism 4 includes a heat dissipation ring 401 horizontally sleeved on the surface of the transformer bank, one side of the heat dissipation ring 401 is fixedly connected with the inner wall of the cabinet body 1, and on the outer wall of the heat dissipation ring 401 are fixedly connected with a number of heat dissipation fins 21 for expanding the heat dissipation of the transformer bank. Both opposite side walls of the heat dissipation ring 401 are threadedly connected with sealing tubes 403, and the two sealing tubes 403 penetrate through the corresponding side of the heat dissipation ring 401 and one end abuts against the outer shell of the transformer bank.

[0042] Referring to Figure 3, a piston block 404 is slidably connected inside the sealed tube 403, and both ends of the sealed tube 403 are closed by the piston block 404 and the side wall of the transformer bank respectively. The sealed tube 403 is a low-temperature resistant tube made of PPE material, and the sealed tube 403 is filled with sufficient liquid nitrogen or dry ice or compressed helium gas. A sealing ring 12 is fixedly connected to one side of the sealed tube 403 close to the transformer bank. By screwing the sealed tube 403 into the heat dissipation ring 401, the sealing ring 12 is pressed against the outer surface of the transformer bank, thereby avoiding internal gas leakage. At the same time, the internal gas can be in direct contact with the surface of the transformer bank, enabling the internal gas to be quickly heated.

[0043] A bearing ring is provided on the side of the piston block 404 away from the transformer bank. The outer ring of the bearing ring is fixedly connected to the piston block 404, and a rotating column 406 is fixedly connected to the inner ring of the bearing ring. A tooth groove is formed inside the rotating column 406, and a tooth column 402 is slidably connected inside the tooth groove. A number of external teeth that cooperate with the tooth groove are fixedly connected to the tooth column 402, so that the rotating column 406 and the tooth column 402 rotate synchronously.

[0044] Radiating plates 407 are slidably connected to both opposite sides of the cabinet body 1. A rotating shaft 6 vertically penetrates the center of the radiating plate 407, and the outer wall of the rotating shaft 6 is fixedly connected to the radiating plate 407. A rotating tube 7 is rotatably connected inside the rotating shaft 6, and the tooth column 402 extends into the rotating tube 7 and is fixedly connected to the inner wall of the rotating tube 7.

[0045] Two limiting rods 8 are fixedly connected to both the upper and lower ends of the side wall of the radiating plate 407. The limiting rods 8 penetrate the side wall of the cabinet body 1 and extend into the cabinet body 1, and a clamping plate 801 is fixedly connected to the end of the limiting rod 8 inside the cabinet body 1. When the piston block 404 slides to the edge of the end of the sealed tube 403 away from the transformer bank, the clamping plate 801 abuts against the inner wall of the cabinet body 1.

[0046] Rack bars 408 are fixedly connected to the side walls of the two radiating plates 407. The rack bars 408 penetrate the side wall of the cabinet body 1 and extend into the cabinet body 1.

[0047] Reference Figure 1 , Figure 4 , a partition plate 9 is provided above the transformer bank and the radiating plate 407 in the cabinet body 1, and the partition plate 9 is fixedly connected to the inner wall of the cabinet body 1. Rotating seats 10 are rotatably connected through both sides of the end face of the partition plate 9 close to the radiating plate 407. Gears are axially fixedly sleeved on the lower end faces of the rotating seats 10, and the gears at corresponding positions are meshed with the rack bars 408. Two fixing frames 11 are fixedly connected to the upper end face of the partition plate 9, and the two fixing frames 11 are respectively arranged above the corresponding rotating seats 10.

[0048] Reference Figure 4, a push rod 409 is inserted into the rotating seat 10. The push rod 409 penetrates through the corresponding fixing frame 11, and the push rod 409 is threadedly connected to the rotating seat 10 and the fixing frame 11 respectively. An axial bearing is sleeved on the upper end of the push rod 409, and the outer ring of the bearing is fixedly connected with a spiral bevel gear disc 405.

[0049] Reference Figure 1 、 Figure 4 , the fan mechanism 2 includes two fans arranged along the length direction of the cabinet body 1. Protective frames 13 are fixedly connected to both sides of the cabinet body 1 above the partition plate 9, and shifting rod grooves 14 are formed on the opposite side walls of the two protective frames 13. A switch 201 for controlling the opening of the adjacent fan is arranged at the bottom of the shifting rod groove 14, and a right-angled shifting rod 202 is rotatably connected to the opposite inner walls on both sides of the shifting rod groove 14. One side of the right-angled shifting rod 202 close to the bottom of the shifting rod groove 14 abuts against the switch 201.

[0050] The right-angled shifting rod 202 includes a shifting piece 15. The shifting piece 15 extends away from the bottom of the shifting rod groove 14 and extends below the spiral bevel gear disc 405. When the push rod 409 drives the spiral bevel gear disc 405 to slide up or down, when the spiral bevel gear disc 405 slides up and the right-angled shifting rod 202 is above the spiral bevel gear disc 405, the bolt bevel gear disc 405 pushes the right-angled shifting rod 202 to turn on the corresponding fan; when the spiral bevel gear disc 405 slides down and the right-angled shifting rod 202 is below the spiral bevel gear disc 405, the spiral bevel gear disc 405 pushes the right-angled shifting rod 202 downward to turn off the corresponding fan.

[0051] Reference Figure 1 、 Figure 4 , the fan mechanism 2 further includes two servo motors 16 arranged on the upper end surface of the cabinet body 1. The power shafts of the servo motors 16 extend towards the transformer group and penetrate through the upper end surface of the cabinet body 1 and the partition plate 9, and a plurality of fan blades are fixedly connected to the ends of the power shafts inside the cabinet body 1. An umbrella gear ring 203 is axially fixedly sleeved on the power shaft above the partition plate 9. Two output frames are fixedly connected to the partition plate 9, and output rods 204 that rotate along their own axes are arranged on the output frames. One end of the output rod 204 close to the umbrella gear ring 203 is fixedly connected with an umbrella gear that meshes with the umbrella gear ring 203. The other end of the output rod 204 is fixedly connected with a spiral bevel gear, and the spiral bevel gear is arranged above the corresponding spiral bevel gear disc 405. When the spiral bevel gear disc 405 is pushed by the push rod 409 to make the spiral bevel gear abut against the spiral bevel gear disc 405, the spiral bevel gear meshes with the spiral bevel gear disc 405, and the spiral bevel gear and the spiral bevel gear disc 405 rotate synchronously.

[0052] Reference Figure 1 、 Figure 5 、 Figure 6, the flow increasing mechanism 3 includes two drive frames 17 fixedly connected to the partition plate 9. A drive rod 301 is rotatably connected inside the drive frame 17. One end of the drive rod 301 is fixedly connected with a helical bevel gear that can mesh with the helical bevel gear disk 405. The other end of the drive rod 301 is fixedly connected with a bevel gear. A connecting rod 302 is arranged on the drive frame 17. One end of the connecting rod 302 close to the drive rod 301 is fixedly connected with a bevel gear. The bevel gear of the drive rod 301 meshes with the bevel gear of the connecting rod 302. The other end of the connecting rod 302 is fixedly connected with a rotating wheel 303.

[0053] The rotating wheel 303 on one side of the drive frame 17 is connected in a linkage manner with the corresponding rotating column 406 through a belt, and an opening for the belt to pass through is arranged on the partition plate 9. A connecting wheel 304 is arranged on the rotating wheel 303 on the other side of the drive frame 17. The connecting wheel 304 is connected in a linkage manner with the rotating column 406 through a belt. A gear meshing with the rotating wheel 303 is fixedly connected to the connecting wheel 304. The above structure makes the rotation directions of the two rotating columns 406 the same.

[0054] Reference Figure 1 , Figure 3 , the tooth column 402 extends towards the end away from the transformer bank and penetrates through the rotating shaft 6 and the rotating tube 7. A fan blade is fixedly connected to the end of the tooth column 402. A dust-proof net 18 covering the fan blade is fixedly connected to the outer wall of the heat dissipation plate 407 away from the transformer bank. A plurality of heat exchange holes 19 are formed in the heat dissipation plate 407.

[0055] Reference Figure 3 , Figure 8 , a vibration damping plate 501 is arranged below the transformer bank and the heat dissipation plate 407. A vibration damping groove 20 is formed in the inner wall of the cabinet body 1. The side wall of the vibration damping plate 501 extends into the vibration damping groove 20. One ends of a plurality of connecting springs 502 are fixedly connected to one side of the vibration damping groove 20 away from the lower end surface of the cabinet body 1. The other ends of the connecting springs 502 are fixedly connected to the part of the vibration damping plate 501 extending into the vibration damping groove 20.

[0056] One ends of a plurality of vibration damping springs 503 are fixedly connected to the lower end surface of the vibration damping plate 501. The other ends of the vibration damping springs 503 are fixedly connected to an adjusting plate 504. Two adjusting seats 505 close to the rack 408 are fixedly connected to the lower end surface of the cabinet body 1. An adjusting groove is formed in the adjusting seat 505. An adjusting rod 506 passing through the adjusting plate 504 and threadedly connected with the adjusting plate 504 is threadedly connected in the adjusting groove. A push plate 507 is axially fixed to the adjusting rod 506. A bearing is arranged between the push plate 507 and the adjusting rod 506. The adjusting rod 506 is fixedly connected to the inner ring of the bearing, and the push plate 507 is fixedly connected to the outer ring of the bearing, so that when the adjusting rod 506 rotates, it can drive the push plate 507 to slide away from the bottom surface of the cabinet body 1.

[0057] The implementation principle of the embodiment of this application is as follows: When the transformer starts to operate, the inside of the cabinet 1 can be ventilated only through the heat dissipation plate 407 to reduce the temperature of the transformer.

[0058] As the working power of the transformer increases or the working time increases, the temperature of the transformer gradually rises. The gas inside the sealed tube 403 expands rapidly when heated, pushing the heat dissipation plates 407 on both sides to slide away from the transformer, so that the heat dissipation plates 407 move away from the cabinet 1, and the heat dissipation channels of the large cabinet 1 can be increased.

[0059] When the heat dissipation plate 407 slides, the rack 408 rotates, so that the ejector rod 409 drives the spiral bevel gear disk 405 to move upward, and the switch 201 of the fan is turned on during the movement, so that the fan rotates to dissipate heat from the transformer bank.

[0060] After the heat dissipation plate 407 slides further, the spiral bevel gear disk 405 rises to connect the output rod 204 with the transmission rod 301, so that the output rod 204 can drive the transmission rod 301 to rotate, and thus the fan blades on both sides of the heat dissipation plates 407 rotate, and the rotation directions of the fan blades on both sides of the heat dissipation plates 407 are the same. That is, one side of the fan blade blows air into the cabinet 1, and the other side of the fan blade sucks air out of the cabinet 1, which can effectively improve the air heat exchange rate between the inside of the cabinet 1 and the outside.

[0061] When the temperature of the transformer bank drops, the helium gas shrinks, causing the heat dissipation plate 407 to slide closer to the transformer bank. The current increasing mechanism 3 or the fan mechanism 2 can be selectively turned off according to the sliding degree of the heat dissipation plate 407, so as to realize switching the heat dissipation gear at any time.

[0062] This application realizes the full-automatic switching of the heat dissipation mode according to the surface temperature of the transformer bank through a four-stage heat dissipation method, so as to reduce the energy consumption for heat dissipation consumed by the transformer during operation, thereby improving the working efficiency of the transformer.

[0063] In addition, in the related art, when the dry-type transformer is operating, it may vibrate, and the vibration frequency will increase with the increase of power. The anti-vibration spring 503 is compressed as the heat dissipation plate 407 moves, so as to improve the anti-vibration performance of the anti-vibration spring 503, thereby reducing the vibration of the dry-type transformer.

[0064] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same parts are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A removable high-voltage switchgear with a dry-type transformer, comprising a cabinet (1) and a transformer group, wherein the transformer group is arranged in the cabinet (1), and is characterized in that: The cabinet (1) is provided with a fan mechanism (2) for dissipating heat inside the cabinet (1), and a flow increasing mechanism (3) for increasing the air flow speed inside the cabinet (1). The cabinet (1) is also provided with The temperature control switch mechanism (4) comprises a heat dissipation ring (401) arranged on the transformer group, the heat dissipation ring (401) is provided with a plurality of sealing tubes (403), a piston block (404) is slidably connected in the sealing tube (403), a bearing ring is provided on the side of the piston block (404) away from the transformer group, the outer ring of the bearing ring is fixedly connected to the piston block (404), the inner ring of the bearing ring is fixedly connected to a rotating column (406), a tooth groove is provided in the rotating column (406), a tooth column (402) is slidably connected in the tooth groove, and the cabinet (1) is slidably connected with heat dissipation rings on both opposite sides. A heat plate (407), wherein a rotating shaft (6) vertically penetrates the center of the heat plate (407), an outer wall of the rotating shaft (6) is fixedly connected to the heat plate (407), a rotating tube (7) is rotatably connected inside the rotating shaft (6), the tooth column (402) extends into the rotating tube (7) and is fixedly connected to the inner wall of the rotating tube (7), the sealing tube (403) is filled with an inert gas, the inert gas expands or contracts to control the heat plate (407) to slide away from or close to the transformer group, and the heat plate (407) turns on or off the fan mechanism (2) and the flow increasing mechanism (3) during the sliding process; The vibration-proof mechanism (5) comprises a vibration-proof plate (501) arranged below the transformer group, a plurality of vibration-proof springs (503) being arranged on the vibration-proof plate (501), an adjustment plate (504) being arranged at one end of the vibration-proof spring (503) away from the transformer group, the adjustment plate (504) being slidably connected to a housing, the adjustment plate (504) being linked to a heat sink (407) via a gear set, and the heat sink (407) controlling the adjustment plate (504) to slide towards or away from the vibration-proof plate (501) during the sliding process.

2. A removable high-voltage switchgear with a dry-type transformer according to claim 1, characterized in that: The fan mechanism (2) comprises a right-angle lever (202) rotatably connected to the inner wall of the cabinet (1) for controlling the fan switch (201); a plurality of racks (408) are arranged on the heat dissipation plate (407); a rotating seat (10) is rotatably connected inside the cabinet (1); a gear is arranged on the lower end surface of the rotating seat (10); the gear is meshed with the rack (408); a push rod (409) is threadedly connected to the inner wall of the rotating seat (10); the push rod (409) is threadedly connected to the cabinet (1); a spiral bevel gear (405) is arranged on the upper end surface of the push rod (409); the spiral bevel gear (405) slides toward or away from the right-angle lever (202).

3. A removable high-voltage switchgear with a dry-type transformer according to claim 2, characterized in that: The fan mechanism (2) comprises a power shaft extending into the cabinet (1), a bevel gear ring (203) being axially sleeved on the power shaft, an output rod (204) being rotatably connected inside the cabinet (1), and the bevel gear ring (203) being linked to a spiral bevel gear disc (405) via the output rod (204).

4. A removable high-voltage switchgear with a dry-type transformer according to claim 3, characterized in that: The flow increasing mechanism (3) comprises a connecting plate rotatably connected to a heat sink (407), the rotating column (406) passes through the connecting plate, the end of the tooth column (402) is fixedly connected to a fan blade, a transmission rod (301) is rotatably connected inside the cabinet (1), and the rotating column (406) is connected to the spiral bevel gear plate (405) via the transmission rod (301).

5. A removable high-voltage switchgear with a dry-type transformer according to claim 4, characterized in that: A gear is provided between the rotating column (406) and the transmission rod (301), and the rotating column (406) is linked to the transmission rod (301) via the gear.

6. A removable high-voltage switchgear with a dry-type transformer according to claim 2, characterized in that: The vibration-proof mechanism (5) further comprises a plurality of adjustment rods (506) penetrating the adjustment plate (504), the adjustment rods (506) meshing with the rack (408), the lower end faces of the adjustment rods (506) being threadedly connected to an adjustment seat (505) arranged in the cabinet (1), the adjustment rods (506) being axially sleeved with a push plate (507) arranged on the lower end face of the adjustment plate (504), the push plate (507) pushing the adjustment plate (504) to slide towards the vibration-proof plate (501).

7. The removable high-voltage switchgear with a dry-type transformer according to claim 1, characterized in that: A limiting rod (8) is provided on the heat dissipation plate (407), and the limiting rod (8) extends into the cabinet (1) and is clamped with the cabinet (1).

8. The removable high-voltage switchgear with a dry-type transformer according to claim 1, characterized in that: A plurality of heat sinks (21) are arranged on the heat dissipation ring (401).

Images