A gas-insulated high-voltage combined electrical apparatus

Abstract

The application discloses a kind of gas insulation high-voltage combined electric appliance, including pressure increasing mechanism, cooling mechanism, collection mechanism, control cabinet, circuit breaker, mutual inductor, outgoing line switch, voltage transformer, the pressure increasing mechanism includes protective housing, pressure increasing motor, half gear, rack, pressure increasing piston, slide bar, separation cylinder, second pressure increasing pipe, second pressure increasing pipe, air inlet pipe, line pipe, the protective housing is fixedly arranged in the outside of pressure increasing mechanism, the pressure increasing motor is fixedly connected with the inside of protective housing, the output shaft of the half gear is fixedly connected with pressure increasing motor. By setting pressure increasing mechanism, the pressure of sulfur hexafluoride gas can be additionally increased when the device is arc extinguishing, so as to improve the gas molecular density, and then improve the arc extinguishing performance of the device.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and more particularly to a gas-insulated high-voltage combined electrical appliance. Background Technology

[0002] Gas-insulated high-voltage switchgear is a compact high-voltage and ultra-high-voltage switchgear that integrates high-voltage electrical components such as circuit breakers, disconnectors, and instrument transformers into a metal housing using sulfur hexafluoride gas as the insulating and arc-extinguishing medium.

[0003] Existing devices of this type have relatively unsatisfactory arc-extinguishing performance. For example, the gas-insulated high-voltage switchgear disclosed in Chinese Patent Publication No. CN103368080A, although improved in terms of device shape and outer tube, did not specifically design for arc extinguishing. Such devices generally use sulfur hexafluoride for arc extinguishing. However, in actual use, the temperature of sulfur hexafluoride often rises due to the increase in external temperature, and the increase in temperature leads to a decrease in the arc-extinguishing performance of sulfur hexafluoride gas, resulting in relatively unsatisfactory arc-extinguishing performance of the device. Therefore, this application proposes a gas-insulated high-voltage switchgear. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gas-insulated high-voltage combined electrical appliance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A gas-insulated high-voltage combined electrical appliance includes a boosting mechanism, a cooling mechanism, a collection mechanism, a control cabinet, a circuit breaker, a transformer, an outgoing switch, and a voltage transformer. The boosting mechanism includes a protective shell, a boosting motor, a half gear, a rack, a boosting piston, a slide rod, a separation cylinder, a second boosting pipe, an air inlet pipe, and a wiring pipe. The protective housing is fixedly installed outside the boosting mechanism, the boosting motor is fixedly connected to the inside of the protective housing, the half gear is fixedly connected to the output shaft of the boosting motor, and the rack is fixedly connected to the output shaft of the boosting piston. The slide rod is fixedly connected between the inner walls of the protective shell. The booster piston and the separation cylinder are slidably connected to the slide rod. The output rod of the separation cylinder is fixedly connected to the bottom surface of the rack. The second booster pipe is fixedly connected to the outlet end of the booster piston. The second booster pipe is fixedly connected to the inlet end of the booster piston.

[0006] Preferably, the cooling mechanism includes a cooling fan, a first belt drive assembly, a cooling cover, a water inlet pipe, an air tank, heat dissipation fins, a spiral sleeve, a spiral tube, a water outlet, an atomizing plate, a spring, a guide rod, and a one-way plate. One pulley of the first belt drive group is fixedly connected to the output shaft of the booster motor, the other pulley of the first belt drive group is rotatably connected to the outer wall of the protective shell and fixedly connected to the cooling fan, the cooling cover is fixedly connected to the outer surface of the protective shell, the water inlet pipe is fixedly connected to the cooling cover, and the air storage tank is fixedly connected to the inner bottom of the protective shell.

[0007] Preferably, the collection mechanism includes a collection motor, a second belt drive assembly, an absorption cage, an air pump, an air extraction pipe, an air outlet pipe, a motor protective shell, a compressed air tank, a mounting plate, and an arc-extinguishing chamber; The collecting motor is fixedly installed on the upper surface of the mounting plate. The second belt drive assembly and the collecting motor are both located inside the motor protective shell. The absorption cage is rotatably connected to the inside of the compressed air tank. The air pump is fixedly installed on the upper surface of the mounting plate.

[0008] Preferably, one end of the suction pipe is fixedly connected to the arc-extinguishing chamber, the other end of the suction pipe is fixedly connected to the air pump, one end of the outlet pipe is fixedly connected to the compressed air tank, and the other end of the outlet pipe is fixedly connected to the air pump.

[0009] Preferably, an arc-extinguishing cylinder is fixedly connected in the arc-extinguishing chamber, an external cable is fixedly connected in the output shaft of the arc-extinguishing cylinder, and an internal cable is also provided inside the conduit.

[0010] Preferably, a spiral tube is slidably provided in the spiral sleeve, the heat dissipation fins are fixedly connected to the air tank, the spiral sleeve is fixedly connected to the atomizing plate, and the spiral tube is fixedly connected to the cooling fan.

[0011] Preferably, the water outlet is located on the one-way plate, the atomizing plate is slidably connected to the one-way plate, one end of the spring is fixedly connected to the guide rod, the other end of the spring is fixedly connected to the one-way plate, and the guide rod is slidably connected to the one-way plate.

[0012] Preferably, an external pipe is fixedly connected to the air inlet pipe, a partition plate is fixedly connected to the arc extinguishing cylinder, a venting groove is provided at the front end of the output rod of the arc extinguishing cylinder, an external arc extinguishing pipe is fixedly connected to the side wall of the air storage tank, a blocking plate is fixedly connected to the guide rod, and a fixed bracket is fixedly connected to the outer surface of the compressed air tank.

[0013] The present invention has the following beneficial effects: 1. By setting up a pressurization mechanism, the pressure of sulfur hexafluoride gas can be additionally increased during arc extinguishing, thereby increasing the gas molecule density and improving the arc extinguishing performance of the device.

[0014] 2. By setting up a cooling component, the temperature of sulfur hexafluoride gas in the gas storage tank of this device can be relatively lower than the ambient temperature, thereby further improving the arc extinguishing performance of this device.

[0015] 3. By setting up a collection mechanism, the waste gas generated after arc extinguishing can be discharged outside the device for adsorption, which avoids the problem of acid corrosion caused by the waste gas coming into contact with the metal parts in the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a gas-insulated high-voltage combined electrical appliance proposed in this invention; Figure 2 This is a schematic diagram showing the location of the internal cables of a gas-insulated high-voltage switchgear proposed in this invention. Figure 3 This is a schematic diagram of the arc-extinguishing cylinder of a gas-insulated high-voltage combined electrical appliance proposed in this invention. Figure 4 This is a schematic diagram showing the location of the booster motor in a gas-insulated high-voltage combined electrical appliance proposed in this invention. Figure 5 This is a schematic diagram showing the position of the guide rod of a gas-insulated high-voltage combined electrical appliance proposed in this invention; Figure 6 This is a schematic diagram showing the location of the compressed air tank in a gas-insulated high-voltage combined electrical appliance according to the present invention. Figure 7 This is a schematic diagram of the absorption cage of a gas-insulated high-voltage combined electrical appliance proposed in this invention; Figure 8 This is a schematic diagram of the spiral tube structure of a gas-insulated high-voltage combined electrical appliance proposed in this invention.

[0017] In the diagram: 1. Control cabinet; 2. Circuit breaker; 3. Current transformer; 4. Outgoing switch; 5. Grounding switch; 6. Voltage transformer; 7. Arc-extinguishing chamber; 8. Compressed gas tank; 9. Protective enclosure; 10. Wiring conduit; 11. Inlet pipe; 12. No. 1 booster pipe; 13. External pipe; 14. External cable; 15. Internal cable; 16. Partition plate; 17. Vent groove; 18. Arc-extinguishing cylinder; 19. Mounting plate; 20. One-way plate; 21. Booster motor; 22. Gas tank; 23. Slide rod; 24. No. 1 booster pipe; 25. External arc-extinguishing pipe; 26. Heat sink fins. 27. Boosting piston, 28. Half gear, 29. Rack, 30. Separating cylinder, 31. Cooling cover, 32. Water inlet pipe, 33. Cooling fan, 34. Spiral sleeve, 35. Belt drive assembly No. 1, 36. Guide rod, 37. Blocking plate, 38. Spring, 39. Water outlet, 40. Atomizing plate, 41. Spiral tube, 42. Fixed bracket, 43. Suction pipe, 44. Air pump, 45. Air outlet pipe, 46. Motor protective shell, 47. Collecting motor, 48. Belt drive assembly No. 2, 49. Absorption cage, 50. Arc extinguishing chamber air pipe, 51. Boosting pipe No. 2. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Example 1: A gas-insulated high-voltage combined electrical appliance includes a boosting mechanism, a cooling mechanism, a collecting mechanism, a control cabinet 1, a circuit breaker 2, a transformer 3, an outgoing switch 4, and a voltage transformer 6. The boosting mechanism includes a protective housing 9, a boosting motor 21, a half gear 28, a rack 29, a boosting piston 27, a slide rod 23, a separation cylinder 30, a second boosting pipe 51, an air inlet pipe 11, and a wiring pipe 10. The protective housing 9 is fixedly installed outside the boosting mechanism. The boosting motor 21 is fixedly connected to the inside of the protective housing 9. The half gear 28 is fixedly connected to the output shaft of the boosting motor 21, and the rack 29 is fixedly connected to the output shaft of the boosting piston 27.

[0020] The slide rod 23 is fixedly connected to the inner wall of the protective shell 9. The booster piston 27 and the separation cylinder 30 are both slidably connected to the slide rod 23. The output rod of the separation cylinder 30 is fixedly connected to the bottom surface of the rack 29. The second booster pipe 51 is fixedly connected to the outlet end of the booster piston 27 and the inlet end of the booster piston 27.

[0021] Water outlet 39 is provided on one-way plate 52, atomizing plate 40 is slidably connected to one-way plate 52, one end of spring 38 is fixedly connected to guide rod 36, the other end of spring 38 is fixedly connected to one-way plate 52, and guide rod 36 is slidably connected to one-way plate 52.

[0022] An external pipe 13 is fixedly connected to the air inlet pipe 11, a partition plate 16 is fixedly connected to the arc extinguishing cylinder 18, a venting groove 17 is opened at the front end of the output rod of the arc extinguishing cylinder 18, an external arc extinguishing pipe 25 is fixedly connected to the side wall of the air storage tank 22, a blocking plate 37 is fixedly connected to the guide rod 36, and a fixed bracket 42 is fixedly connected to the outer surface of the compressed air tank 8.

[0023] It should be noted that the arc-quenching principle of sulfur hexafluoride gas is as follows: When the circuit breaker contacts separate and generate an electric arc, the arc gap instantly creates a high-temperature environment of several thousand degrees Celsius. This extreme temperature causes the chemical bonds of sulfur hexafluoride molecules to break, resulting in a thermal decomposition reaction that generates sulfur atoms, fluorine atoms, and various unstable low-fluoride particles. These decomposition products all possess extremely strong electron affinity, actively capturing free electrons in the arc gap that maintain the arc's conductivity. They rapidly combine to form high-mass, extremely slow-moving negative ions, which not only significantly reduce the concentration of charged particles in the arc gap but also directly block the current conduction path of the arc because the negative ions cannot participate in the conductive circuit, thus weakening the arc's combustion intensity at its source.

[0024] Meanwhile, the cracking process of sulfur hexafluoride itself absorbs a large amount of arc heat, achieving initial cooling of the arc gap. The artificially applied low-temperature environment further amplifies the arc-extinguishing effect, forming a synergistic effect of dual cooling and arc suppression. Low temperature inhibits the ionization activity of gas molecules at the source, reduces the continuous generation of new charged particles, and lowers the thermal kinetic energy of particles, significantly accelerating the recombination reaction rate of unstable cracking products. This allows dispersed atoms to quickly recombine and restore stable sulfur hexafluoride molecules, preventing cracking products from interfering with the arc gap environment.

[0025] When the arc current naturally drops to zero, the arc gap loses its core energy source. With the support of the low-temperature heat dissipation structure, the temperature will continue to drop at a rate far exceeding that of natural cooling. The recombination reaction of the fragmented particles will also reach its peak, rapidly completing morphological restoration. At this time, the insulation strength of the arc gap will rise above the breakdown voltage in a very short time, completely blocking the path for arc reignition. Even if there is a residual electric field between the contacts, a conductive circuit cannot be formed.

[0026] Before using this device, sulfur hexafluoride gas must first be charged into the gas storage tank 22. An external arc-extinguishing tube 25 is used to supply the external sulfur hexafluoride gas source, which then enters the gas storage tank 22. Heat dissipation fins 26 are fixedly connected to the gas storage tank 22. One end of the second booster pipe 51 is connected to the booster piston 27, and the other end is fixedly connected to the gas storage tank 22; it is used to pump sulfur hexafluoride gas into the booster piston 27. One end of the first booster pipe 12 is fixedly connected to the inlet pipe 11, and the other end is connected to the booster piston 27.

[0027] The booster piston 27 is slidably connected to the slide rod 23, and the bottom of the separator cylinder 30 is also slidably connected to the slide rod 23. The slide rod 23 is L-shaped. The separator cylinder 30 is slidably connected to the horizontally arranged portion, and the booster piston 27 is slidably connected to the vertically arranged portion of the slide rod 23. The output shaft of the booster piston 27 is fixedly connected to the rack 29. The output shaft of the separator cylinder 30 is fixedly connected to the bottom of the rack 29.

[0028] When the output shaft of the separating cylinder 30 extends, it can lift the rack 29, thereby causing the half gear 28 to mesh with the rack 29. (Reference) Figure 4 A half-gear 28 is fixedly connected to the output shaft of the booster motor 21. When the output shaft of the separation cylinder 30 retracts, the rack 29 descends along with the output shaft, thereby achieving the separation of the half-gear 28 and the rack 29.

[0029] When the output shaft of the booster motor 21 rotates, it causes the half gear 28 to rotate. As the half gear 28 rotates, it meshes with the rack 29, causing the rack 29 to move accordingly. Since the half gear 28 does not have all its teeth, its meshing with the rack 29 is intermittent. When the rack 29 is not meshing with the half gear 28, the spring in the booster piston 27 allows the output rod of the booster piston 27 to return to its original position, thus creating a reciprocating motion.

[0030] When the output shaft of the booster piston 27 extends, sulfur hexafluoride in the gas storage tank 22 is drawn into the booster piston 27 by the second booster pipe 51. When the output shaft of the booster piston 27 is pushed back into the booster piston 27, the sulfur hexafluoride gas in the booster piston 27 is pushed into the second booster pipe 51. Then, it is pushed into the intake pipe 11 through the second booster pipe 51.

[0031] refer to Figure 3 The arc-extinguishing chamber gas tank 52 requires an external sulfur hexafluoride (SF6) gas source. When the device needs power transmission, SF6 gas can be injected into the arc-extinguishing chamber gas pipe 52. The arc-extinguishing chamber gas pipe 52 is connected to the right side of the partition plate 16, while the inlet end of the inlet pipe 11 is located on the left side of the partition plate 16. When the arc-extinguishing chamber gas pipe 52 injects SF6 gas into the right side of the partition plate 16, it can push the output shaft of the arc-extinguishing cylinder 18 to extend. (Refer to...) Figure 3 At this point, the external cable 14 and the internal cable 15 are in contact with each other.

[0032] When the device needs to be disconnected, an electric arc will be generated during the disconnection process. At this time, the separation cylinder 30 can be activated. The output shaft of the separation cylinder 30 extends, causing the half gear 28 and the rack 29 to mesh with each other. When the half gear 28 rotates, it will cause the rack 29 to move back and forth, which in turn causes the output shaft of the booster piston 27 to move back and forth, thereby allowing the additional sulfur hexafluoride gas located in the gas storage tank 22 to enter the air intake pipe 11, and then allowing the sulfur hexafluoride gas to the left side of the partition plate 16.

[0033] When sulfur hexafluoride gas enters the left side of the separator 16, it pushes the separator 16 to move from left to right. This movement of the separator 16 pulls the output rod of the arc-extinguishing cylinder 18, causing the external cable 14 and the internal cable 15 to separate. When the external cable 14 and the internal cable 15 separate, an electric arc is generated. (Reference) Figure 3 A venting groove 17 is provided on the output shaft of the arc-extinguishing cylinder 18. When the output shaft of the arc-extinguishing cylinder 18 retracts into the interior of the arc-extinguishing cylinder 18, the venting groove 17 also retracts into the interior of the arc-extinguishing cylinder 18. The left side of the partition plate 16 is connected to the internal space of the arc-extinguishing chamber 7, thereby allowing sulfur hexafluoride located on the left side of the partition plate 16 to enter the arc-extinguishing chamber 7, increasing the pressure of the sulfur hexafluoride gas in the arc-extinguishing chamber 7, and thus improving the arc-extinguishing performance of this device.

[0034] Example 2: The cooling mechanism includes a cooling fan 33, a first belt drive assembly 35, a cooling cover 31, a water inlet pipe 32, an air tank 22, heat dissipation fins 26, a spiral sleeve 34, a spiral tube 41, a water outlet 39, an atomizing plate 40, a spring 38, a guide rod 36, and a one-way plate 52. One pulley of the first belt drive assembly 35 is fixedly connected to the output shaft of the booster motor 21, and the other pulley of the first belt drive assembly 35 is rotatably connected to the outer wall of the protective shell 9 and fixedly connected to the cooling fan 33. The cooling cover 31 is fixedly connected to the outer surface of the protective shell 9, the water inlet pipe 32 is fixedly connected to the cooling cover 31, and the air tank 22 is fixedly connected to the inner bottom of the protective shell 9.

[0035] An arc-extinguishing cylinder 18 is fixedly connected to the arc-extinguishing chamber 7. An external cable 14 is fixedly connected to the output shaft of the arc-extinguishing cylinder 18. An internal cable 15 is also installed inside the wiring conduit 10. A spiral tube 41 is slidably installed in the spiral sleeve 34. The heat dissipation fins 26 are fixedly connected to the air storage tank 22. The spiral sleeve 34 is fixedly connected to the atomizing plate 40. The spiral tube 41 is fixedly connected to the cooling fan 33.

[0036] refer to Figure 4 The output shaft of the booster motor 21 is also fixedly connected to one pulley of the first belt drive assembly 35, while the other pulley is fixedly connected to the cooling fan 33. When the output shaft of the booster motor 21 rotates, it causes the first belt drive assembly 35 to operate, transmitting power to the cooling fan 33, which in turn causes the fan to rotate. Since the spiral tube 41 is fixedly connected to the cooling fan 33, the rotation of the cooling fan 33 causes the spiral tube 41 to rotate. The spiral tube 41 has an arc-shaped groove, and the spiral sleeve 34 has a cylindrical protrusion that is positioned within the arc-shaped groove of the spiral tube 41 during assembly.

[0037] When the spiral tube 41 rotates, the protruding part of the spiral sleeve 34 moves along the groove on the spiral sleeve 34, thereby driving the atomizing plate 40 to reciprocate. The atomizing plate 40 has multiple micropores. The cooling cover 31 has multiple holes for communicating with the external space, and there is a space at the bottom of the cooling cover 31 for storing water. This space is divided by the one-way plate 20 and the atomizing plate 40. The atomizing plate 40 and the one-way plate 20 are slidably connected, while the one-way plate 20 is fixedly connected to the cooling cover 31.

[0038] Spring 38 is located between guide rod 36 and one-way plate 20, and blocking plate 37 is fixedly connected to guide rod 36. When not in use, spring 38 will move guide rod 36 towards the rear of cooling cover 31, thereby blocking water outlet 39 with blocking plate 37. When cooling fan 33 rotates, it causes atomizing plate 40 to reciprocate. When atomizing plate 40 moves towards one-way plate 20, it will squeeze the water between atomizing plate 40 and one-way plate 20, causing the water to pass through the micropores on atomizing plate 40, producing atomized water. The air inlet of cooling fan 33 is located on the side near cooling cover 31, and the air outlet is located on the side of protective shell 9.

[0039] Therefore, the operation of the cooling fan 33 draws atomized water into the protective casing 9, where it mixes with the air drawn in by the cooling fan 33 and is sprayed onto the heat dissipation fins 26. This increases the heat dissipation effect of the device, thereby cooling the sulfur hexafluoride and improving the arc extinguishing effect of the device.

[0040] Example 3: The collection mechanism includes a collection motor 47, a second belt drive assembly 48, an absorption cage 49, an air pump 44, an extraction pipe 43, an outlet pipe 45, a motor protective housing 46, a compressed air tank 8, a mounting plate 53, and an arc-extinguishing chamber 7. The collection motor 47 is fixedly mounted on the upper surface of the mounting plate 53. Both the second belt drive assembly 48 and the collection motor 47 are located inside the motor protective housing 46. The absorption cage 49 is rotatably connected to the inside of the compressed air tank 8. The air pump 44 is fixedly mounted on the upper surface of the mounting plate 53.

[0041] Circuit breaker 2, instrument transformer 3, outgoing switch 4, and voltage transformer 6 are all installed on line conduit 10. Arc extinguishing chamber 7 is fixedly connected to line conduit 10. One end of the exhaust pipe 43 is fixedly connected to arc extinguishing chamber 7, and the other end of the exhaust pipe 43 is fixedly connected to air pump 44. One end of the outlet pipe 45 is fixedly connected to compressed air tank 8, and the other end of the outlet pipe 45 is fixedly connected to air pump 44.

[0042] After the arc extinguishing process is completed, the sulfur hexafluoride gas will produce waste gas, which will corrode the metal parts inside the device. Therefore, the air pump 44 can be turned on. The operation of the air pump 44 will extract the used sulfur hexafluoride in the arc extinguishing chamber 7. When the air pump 44 is running, since one end of the exhaust pipe 43 is connected to the air inlet of the air pump 44, the exhaust pipe 43 will extract the used sulfur hexafluoride gas into the compressed air tank 8 as the air pump 44 is running.

[0043] refer to Figure 7 An absorption cage 49 is eccentrically positioned within the compressed gas tank 8, storing the adsorbent for absorbing waste gas. When the output shaft of the collecting motor 47 rotates, it causes the second belt drive assembly 48 to operate. One pulley of the second belt drive assembly 48 is fixedly connected to the output shaft of the collecting motor 47, while the other pulley is fixedly connected to the absorption cage 49. The drive belt engages with both pulleys. Therefore, when the second belt drive assembly 48 operates, the absorption cage 49 also rotates. This allows the adsorbent in the absorption cage 49 to adsorb the waste gas from sulfur hexafluoride, thus preventing corrosion of the internal metal parts of the device.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A gas-insulated high-voltage combined electrical appliance, comprising a boosting mechanism, a cooling mechanism, and a collecting mechanism, characterized in that, The control cabinet (1), circuit breaker (2), transformer (3), outgoing switch (4), voltage transformer (6), the boosting mechanism includes a protective shell (9), boosting motor (21), half gear (28), rack (29), boosting piston (27), slide rod (23), separation cylinder (30), second boosting pipe (51), second boosting pipe (51), air inlet pipe (11), and line pipe (10); The protective housing (9) is fixedly installed outside the boosting mechanism, the boosting motor (21) is fixedly connected to the inside of the protective housing (9), the half gear (28) is fixedly connected to the output shaft of the boosting motor (21), and the rack (29) is fixedly connected to the output shaft of the boosting piston (27). The slide rod (23) is fixedly connected between the inner walls of the protective shell (9). The booster piston (27) and the separation cylinder (30) are slidably connected to the slide rod (23). The output rod of the separation cylinder (30) is fixedly connected to the bottom surface of the rack (29). The second booster pipe (51) is fixedly connected to the outlet end of the booster piston (27). The second booster pipe (51) is fixedly connected to the inlet end of the booster piston (27).

2. The gas-insulated high-voltage switchgear according to claim 1, characterized in that, The cooling mechanism includes a cooling fan (33), a first belt drive group (35), a cooling cover (31), a water inlet pipe (32), an air tank (22), heat dissipation fins (26), a spiral sleeve (34), a spiral tube (41), a water outlet (39), an atomizing plate (40), a spring (38), a guide rod (36), and a one-way plate (52). One pulley of the first belt drive group (35) is fixedly connected to the output shaft of the booster motor (21), the other pulley of the first belt drive group (35) is rotatably connected to the outer wall of the protective shell (9) and fixedly connected to the cooling fan (33), the cooling cover (31) is fixedly connected to the outer surface of the protective shell (9), the water inlet pipe (32) is fixedly connected to the cooling cover (31), and the air storage tank (22) is fixedly connected to the inner bottom of the protective shell (9).

3. The gas-insulated high-voltage switchgear according to claim 1, characterized in that, The collection mechanism includes a collection motor (47), a second belt drive group (48), an absorption cage (49), an air pump (44), an air extraction pipe (43), an air outlet pipe (45), a motor protective shell (46), a compressed air tank (8), a mounting plate (53), and an arc extinguishing chamber (7). The collecting motor (47) is fixedly installed on the upper surface of the mounting plate (53). The second belt drive group (48) and the collecting motor (47) are both located inside the motor protective shell (46). The absorption cage (49) is rotatably connected to the inside of the compressed air tank (8). The air pump (44) is fixedly installed on the upper surface of the mounting plate (53).

4. The gas-insulated high-voltage switchgear according to claim 1, characterized in that, The circuit breaker (2), transformer (3), outgoing switch (4), and voltage transformer (6) are all installed on the line pipe (10), and the arc extinguishing chamber (7) is fixedly connected to the line pipe (10).

5. A gas-insulated high-voltage switchgear according to claim 1, characterized in that, One end of the suction pipe (43) is fixedly connected to the arc-extinguishing chamber (7), and the other end of the suction pipe (43) is fixedly connected to the air pump (44). One end of the outlet pipe (45) is fixedly connected to the compressed air tank (8), and the other end of the outlet pipe (45) is fixedly connected to the air pump (44).

6. A gas-insulated high-voltage switchgear according to claim 1, characterized in that, An arc-extinguishing cylinder (18) is fixedly connected in the arc-extinguishing chamber (7), and an external cable (14) is fixedly connected in the output shaft of the arc-extinguishing cylinder (18). An internal cable (15) is also provided inside the line tube (10).

7. A gas-insulated high-voltage switchgear according to claim 1, characterized in that, The spiral sleeve (34) is slidably provided with a spiral tube (41), the heat dissipation fins (26) are fixedly connected to the air tank (22), the spiral sleeve (34) is fixedly connected to the atomizing plate (40), and the spiral tube (41) is fixedly connected to the cooling fan (33).

8. A gas-insulated high-voltage switchgear according to claim 1, characterized in that, The water outlet (39) is opened on the one-way plate (52), the atomizing plate (40) is slidably connected to the one-way plate (52), one end of the spring (38) is fixedly connected to the guide rod (36), the other end of the spring (38) is fixedly connected to the one-way plate (52), and the guide rod (36) is slidably connected to the one-way plate (52).

9. A gas-insulated high-voltage switchgear according to claim 1, characterized in that, An external pipe (13) is fixedly connected to the air inlet pipe (11), a partition plate (16) is fixedly connected to the arc extinguishing cylinder (18), a venting groove (17) is opened at the front end of the output rod of the arc extinguishing cylinder (18), an external arc extinguishing pipe (25) is fixedly connected to the side wall of the gas storage tank (22), a blocking plate (37) is fixedly connected to the guide rod (36), a fixed bracket (42) is fixedly connected to the outer surface of the compressed gas tank (8), and an arc extinguishing chamber air pipe (52) is fixedly connected to the outer surface of the arc extinguishing chamber (7).

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