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CN-121978386-A - GIS electricity inspection device

CN121978386ACN 121978386 ACN121978386 ACN 121978386ACN-121978386-A

Abstract

The application provides a GIS electricity testing device, and relates to the technical field of power equipment. The device comprises a main shell and a first connecting cylinder, wherein the first connecting cylinder is connected with a second connecting cylinder on the GIS equipment tank body. The main shell is internally provided with two driving chains and driving chain wheels, the driving chains are provided with meshing teeth, meshing parts of the two driving chains form a rigid body, the mounting cavity comprises a meshing area and a storage area, the two driving chains are meshed in the meshing area and are connected and fixed with the electricity checking component after sequentially penetrating through the meshing area and the first connecting barrel in a maintaining meshed state, and the electricity checking component can stretch into the tank body under the driving of the driving chain wheels and the driving chains. The electricity checking component comprises a first installation block, the end part of the first installation block is provided with a plugging piston, an electroscope and a torsion spring are rotationally arranged in an installation groove of the first installation block, and when the electricity checking component stretches into the tank body, the electroscope overturns and stretches out. The device can directly test the electricity of the lead in the tank body, and breaks through the limitation of traditional indirect electricity test.

Inventors

  • LI KAI
  • ZHANG JIANKUI
  • Jing Mengchen
  • TAN JIWEN
  • ZHAO YIMING
  • CHEN XIAO
  • SUN QING
  • LIU DONG
  • FAN BEIBEI
  • WANG SHAOZHEN
  • WANG XUSHENG
  • ZHOU XIAOLIN
  • LI KAI
  • ZHANG JINHAO
  • SUN YUXIANG

Assignees

  • 国网山东省电力公司潍坊供电公司
  • 山东五洲和兴设计咨询有限公司

Dates

Publication Date
20260505
Application Date
20260212

Claims (9)

  1. 1. The GIS electricity testing device is characterized by comprising a main shell (21) and a first connecting cylinder (22) arranged on the main shell (21), wherein the first connecting cylinder (22) is fixedly connected with a second connecting cylinder (111) on a GIS equipment tank body (11) in a sealing way in a detachable way; The device is characterized in that two driving chains (31) and at least one driving chain wheel (32) which is rotationally connected with the main shell (21) are arranged in a mounting cavity of the main shell (21), the driving chains (31) are provided with meshing teeth (311), the meshing teeth (311) of the driving chains (31) can mutually mesh, a meshing part forms a rigid body, the mounting cavity comprises a meshing area and a storage area for storing the driving chains (31), the two driving chains (31) mesh at an inlet of the meshing area and are connected and fixed with an electricity checking component (4) in a second connecting cylinder (111) after sequentially passing through the meshing area and a first connecting cylinder (22), the electricity checking component (4) can stretch into a tank body (11) under the driving of the driving chain wheels (32) and the driving chains (31), a central shaft (322) of at least one driving chain wheel (32) extends to the outer part of the main shell (21), and a first sealing ring (35) is arranged between the central shaft (322) and a sealing plate (212); The utility model provides an electroscope part (4) include first installation piece (41), the tip of first installation piece (41) is provided with shutoff piston (42) that can form the shutoff to second connecting cylinder (111), the mounting groove (411) rotation of first installation piece (41) be provided with electroscope (43), electroscope (43) and first installation piece (41) between be provided with torsion spring (44), the axis of second connecting cylinder (111) is disjoint with the axis of corresponding wire (12) in jar body (11), works as electroscope part (4) stretch into in jar body (11), electroscope (43) upset stretches out under torsion spring (44) effect, and electroscope (43) electroscope end (431) align with corresponding wire (12).
  2. 2. The GIS electricity testing device according to claim 1, wherein the engaging teeth (311) comprise two toothed plates (3111) with T-shaped structures, rib plates (3112) are arranged between the two toothed plates (3111), the toothed plates (3111) comprise first engaging portions, two ends of the first engaging portions are of semicircular structures, second engaging portions are arranged in the middle of the first engaging portions, semicircular recesses are respectively arranged on two sides of the second engaging portions, and when two adjacent engaging teeth (311) are engaged, semicircular end portions of the first engaging portions of one engaging tooth (311) are embedded into semicircular recesses of the second engaging portions of the other engaging teeth (311).
  3. 3. A GIS electricity test device according to claim 1, wherein the drive means comprises two drive sprockets (32), one of the drive sprockets (32) being engaged with one drive chain (31) and the other drive sprocket (32) being engaged with the other drive chain (31).
  4. 4. A GIS electricity testing device according to claim 3, wherein the upper ends of the central shafts (322) of the two driving chain wheels (32) extend to the outside of the main shell (21), the central shafts (322) are provided with gears (36), and the two gears (36) are meshed.
  5. 5. A GIS electricity testing device according to claim 4, wherein an upper cover shell (23) is arranged on the upper side of the main shell (21), the upper cover shell (23) is fixedly connected with the main shell (21) in a sealing way in a detachable way, and the gear (36) is sealed in a space between the upper cover shell (23) and the main shell (21).
  6. 6. A GIS electricity testing device according to claim 1, wherein a first guide plate (213) is arranged in the storage area of the installation cavity, and the first guide plate (213) and the main housing (21) together form a guide channel for accommodating the drive chain (31).
  7. 7. The GIS electricity testing device according to claim 1, wherein the plugging piston (42) comprises a piston body, and a second sealing ring (421) is sleeved outside the piston body.
  8. 8. The GIS electricity testing device according to claim 7, wherein a second flange (112) is arranged at the end part of the second connecting cylinder (111), the inner diameter of the second flange (112) is smaller than that of the second connecting cylinder (111), the first mounting block (41) is of a cylindrical structure, the diameter of the first mounting block (41) is smaller than that of the piston main body and that of the second flange (112), the diameter of the piston main body is larger than that of the second flange (112), a second sealing gasket (48) is sleeved on the first mounting block (41), and the second sealing gasket (48) is attached to the piston main body.
  9. 9. The GIS electricity testing device of claim 1, wherein the electricity testing device (43) is rotatably connected with the first mounting block (41) through a mounting frame (45), a guard plate (454) is arranged on the mounting frame (45), and when the electricity testing device (43) is overturned and stretched out under the action of a torsion spring (44), the guard plate (454) is positioned on one side of the electricity testing device (43) which is opposite to the corresponding lead (12).

Description

GIS electricity inspection device Technical Field The invention relates to the technical field of power equipment, in particular to a GIS electricity inspection device. Background The Gas Insulated Switchgear (GIS) is a totally-enclosed high-voltage electric device using sulfur hexafluoride (SF 6) or dry compressed air as an insulating medium, adopts a single-phase encapsulation metal shell structure, and integrates the components such as a circuit breaker, an isolating switch, a mutual inductor and the like. When the GIS is in a maintenance state, electricity is tested according to operation requirements when the grounding disconnecting link is closed, and traditional outdoor electrical equipment can test electricity through an electroscope, but the GIS electricity testing process has the following problems: 1. Because all the elements are sealed in the steel container, the outside cannot be directly contacted, and the electricity can not be directly tested through the electroscope when the equipment is in a maintenance state, the electricity can be tested only through an indirect electricity testing mode, namely, the equipment is judged through the change of signals such as mechanical position indication, electrical indication, electrified display device, instrument, various telemetering signals, remote signaling and the like. The electricity test mode is not as reliable as the direct electricity test mode. 2. The traditional GIS equipment is not designed to test the electricity device during production, and if the equipment has mechanical failure or other equipment problems, indirect electricity test is easy to have risks, and potential safety hazards are easy to bring to field work. Disclosure of Invention Aiming at the core pain points of inconvenient electricity test, insufficient reliability and potential safety hazard when the existing GIS equipment is changed to be in a maintenance state, the GIS electricity test device provided by the application is directly integrated in the GIS equipment body, can directly test the electricity of the lead in the tank body, and breaks through the limitation of traditional indirect electricity test. The technical scheme adopted for solving the technical problems is as follows: The GIS electricity testing device comprises a main shell and a first connecting cylinder arranged on the main shell, wherein the first connecting cylinder is fixedly connected with a second connecting cylinder on a GIS equipment tank in a sealing way in a detachable way; The installation cavity of the main shell is internally provided with two driving chains and at least one driving chain wheel which is rotationally connected with the main shell, the driving chains are provided with meshing teeth, the meshing teeth of the two driving chains can mutually mesh, the meshing parts form a rigid body, the installation cavity comprises a meshing area and a storage area for storing the driving chains, the two driving chains mesh at the inlet of the meshing area and are fixedly connected with an electricity testing part in a second connecting cylinder after sequentially passing through the meshing area and the first connecting cylinder in a meshing state, the electricity testing part can stretch into the tank body under the driving of the driving chain wheel and the driving chain, the central shaft of the at least one driving chain wheel extends to the outside of the main shell, and a first sealing ring is arranged between the central shaft and the sealing plate; The utility model provides a test electric part, including first installation piece, the tip of first installation piece is provided with the shutoff piston that can form the shutoff to the second connecting cylinder, the mounting groove internal rotation of first installation piece is provided with the electroscope, electroscope and first installation piece between be provided with torsion spring, the axis of second connecting cylinder and jar internal corresponding wire's axis disjoint, work as test electric part stretch into jar internal time, the electroscope upset stretches out under torsion spring's effect, and the electroscope test electric end aligns with corresponding wire. Further, the interlock tooth include two pinion racks that are T type structure, two the pinion rack between be provided with the floor, the pinion rack includes first interlock portion, just the both ends of first interlock portion are semi-circular structure, the intermediate position of first interlock portion is provided with second interlock portion, the both sides of second interlock portion are provided with semicircular recess respectively, when two adjacent interlock teeth are engaged, the semicircular tip of the first interlock portion of one interlock tooth imbeds in the semicircular recess of the second interlock portion of another interlock tooth. Further, the driving part comprises two driving sprockets, one of which is meshed with one driving chai