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CN-224233200-U - Compact HGIS circuit breaker replacement device

CN224233200UCN 224233200 UCN224233200 UCN 224233200UCN-224233200-U

Abstract

The utility model discloses a compact HGIS circuit breaker replacing device which comprises a door-shaped bracket, a transfer rail, a lifting trolley and hydraulic jacks, wherein the door-shaped bracket is used for propping equipment above a circuit breaker, the transfer rail is paved under the circuit breaker and extends outwards along the arrangement direction of the circuit breaker, the transfer rail is positioned in the door-shaped bracket, at least one pair of lifting trolleys capable of supporting the circuit breaker are arranged on the transfer rail, wheels of the lifting trolleys are embedded into a track groove of the transfer rail and can move along the arrangement direction of the track groove, two sides of each lifting trolley are respectively provided with a pair of hydraulic jacks correspondingly, and the hydraulic jacks can simultaneously drive the lifting trolleys to lift away from the track groove and drive the lifting trolleys to descend to the track groove after the lifting trolleys support the circuit breaker. The utility model can realize that the equipment above the circuit breaker is not dismantled, directly support, sink and push out the circuit breaker which needs to be replaced, control the maintenance cost, improve the maintenance efficiency and improve the maintenance technology level.

Inventors

  • GOU CHENG
  • Sheng Yahui
  • YANG XUETIAN
  • TIAN XIAOJUN
  • LIU YI
  • LIU WEI
  • LIU YUEHUI
  • YU LONG
  • LI WANBAO
  • XING WENHAI
  • JIANG CUNGUO
  • LV JIANBING

Assignees

  • 新疆送变电有限公司

Dates

Publication Date
20260512
Application Date
20250523

Claims (10)

  1. 1. The compact HGIS breaker replacing device is characterized by comprising a door-shaped bracket (1) used for propping up equipment above a breaker, a transferring rail (2) paved right below the breaker and extending outwards along the arrangement direction of the breaker, a lifting trolley (3) and hydraulic jacks (5), wherein the transferring rail (2) is positioned in the door-shaped bracket (1) and is perpendicular to the door-shaped bracket (1), at least one pair of lifting trolleys (3) capable of supporting the breaker are arranged on the transferring rail (2), wheels (62) of the lifting trolleys (3) are embedded into a rail groove of the transferring rail (2) and can move along the arrangement direction of the rail groove, two sides of each lifting trolley (3) are respectively and correspondingly provided with a pair of hydraulic jacks (5), and the hydraulic jacks (5) can simultaneously drive the lifting trolleys (3) to lift away from the rail groove of the transferring rail (2) and drive the lifting trolleys (3) to fall back to the rail groove of the transferring rail (2) after the lifting trolleys (3) support the breaker.
  2. 2. The compact HGIS breaker replacement device according to claim 1, wherein the transfer rail (2) is provided with a plurality of pushing trolleys (4) positioned between the jacking trolleys (3), and wheels (62) of each pushing trolley (4) are embedded into the rail groove of the transfer rail (2) and can travel along the arrangement direction of the rail groove.
  3. 3. The compact HGIS breaker replacement device according to claim 1 or 2, wherein the door brackets (1) are arranged in pairs, and the two door brackets (1) crossing the transfer rail (2) can respectively prop the two sides of the bottom of the device above the breaker.
  4. 4. The compact HGIS breaker replacement device according to claim 3, wherein the door-shaped bracket (1) comprises a supporting upright post (11), a supporting cross beam (12) and an adjusting bolt (13), the tops of the supporting upright posts (11) positioned at two sides of the transfer rail (2) are connected with the bottom of the same supporting cross beam (12) through the adjusting bolt (13), and the sum of the heights of the supporting upright post (11) which is vertically arranged and the supporting cross beam (12) which is horizontally arranged is lower than the bottom height of the device above the breaker, and the top of the supporting cross beam (12) is propped against the bottom of the device above the breaker through the adjustment of the adjusting bolt (13).
  5. 5. The compact HGIS breaker replacement device according to claim 1, wherein the transfer rail (2) is composed of two elongated rail grooves and a rail cross beam (21), and the two rail grooves are fixedly connected by the rail cross beam (21).
  6. 6. The compact HGIS circuit breaker changing device according to claim 1 or 5, characterized in that the transfer rail (2) consists of a circuit breaker section below the circuit breaker and a push-out section in the push-out direction of the circuit breaker, that a number of individual supports (23) are laid at the bottom of the transfer rail (2) of the circuit breaker section for fixing and supporting the transfer rail (2), that support sleepers (22) for supporting the transfer rail (2) are arranged in the push-out section, and that limit bars (24) are arranged in the end sections of the transfer rail (2) of the push-out section.
  7. 7. The compact HGIS breaker replacement device according to claim 2, wherein the jacking trolley (3) and the pushing trolley (4) each comprise a bottom frame (61), at least two wheels (62) fixed in opposite directions are arranged at the bottom of the bottom frame (61), at least a pair of bearing columns (63) are arranged at the top of the bottom frame (61), and an arc-shaped bearing groove (64) capable of bearing the breaker is arranged between the pair of bearing columns (63), and the inner side surface of the arc-shaped bearing groove (64) is matched with the outer surface of the lower part of the breaker.
  8. 8. The compact HGIS breaker replacement device according to claim 7, wherein a flexible supporting pad (65) capable of being attached to the outer surface of the lower portion of the breaker is arranged on the inner side of the arc-shaped supporting groove (64), the supporting upright posts (63) and the arc-shaped supporting groove (64) are integrally formed, a supporting reinforcing beam (66) positioned below the arc-shaped supporting groove (64) is arranged between the supporting upright posts (63), the supporting reinforcing beam (66) is perpendicular to the travelling direction of the trolley, and a same-direction reinforcing beam is arranged between the adjacent supporting upright posts (63) positioned above the wheels (62) on the same side, and the same-direction reinforcing beam is parallel to the travelling direction of the trolley.
  9. 9. The compact HGIS breaker replacement device according to claim 7 or 8, wherein a straight or cross-shaped frame reinforcing rib (8) is arranged in the bottom frame (61), a wheel mounting groove (67) is fixedly arranged at the bottom of the bottom frame (61), wheels (62) are directionally arranged in the wheel mounting groove (67), at least a pair of groove cleaning push rods (9) are arranged at four corners of the bottom frame (61), and the groove cleaning push rods (9) positioned at the outer sides of the wheels (62) are arranged below two pressure-bearing columns (63) corresponding to the same arc-shaped bearing groove (64).
  10. 10. The compact HGIS circuit breaker replacing device according to claim 7, wherein angle steel (610) is symmetrically welded on a bottom frame (61) of the jacking trolley (3), a connecting screw hole (611) is formed in the end of the angle steel (610), the connecting screw hole (611) can be connected with an existing screw hole on the circuit breaker through bolts, jacking lugs (612) are welded or integrally formed on the outer side of the pressure-bearing upright post (63), a socket hole (613) with a downward opening is formed in the jacking lugs (612), the socket hole (613) is used for fixedly inserting a jacking rod, and the jacking rod can drive the jacking trolley (3) through the jacking lugs (612), or the jacking trolley (3) and the circuit breaker on the jacking trolley (3) can realize lifting.

Description

Compact HGIS circuit breaker replacement device Technical Field The utility model relates to the technical field of power grid overhaul, in particular to a compact HGIS breaker replacement device. Background The strong and stable extra-high voltage alternating current-direct current transmission becomes an important foundation stone for energy safety and economic development, the HGIS equipment area adopts a compact vertical arrangement mode, and the breaker tank body is horizontally arranged at the lowest part. At present, large-scale equipment such as a crane, an overhead working truck and the like must be used in the replacement process of the circuit breaker, the difficulty is brought to the direct lifting of the circuit breaker by a narrow working environment, and the bus and adjacent equipment above the circuit breaker are required to be removed in the traditional operation, so that the overhaul process is complex due to gas recovery, conductor disassembly and equipment butt joint, and the working period is long. Because of the limitation of the replacement mode, the current breaker and isolating switch faults need to be overhauled by accompanying a line or bus, so that the 'where the faults are repaired' cannot be achieved, and the regional power failure risk is increased, so that the replacement work of the breaker in recent years affects the annual power transmission plan of the transformer substation for a plurality of times. The existing HGIS circuit breaker is replaced by sequentially removing the tube bus and the tube bus inner conductor, removing the tee joint and the tee joint inner conductor from top to bottom, removing the CT and the connecting conductor, removing the old circuit breaker which needs to be replaced and lifting the new circuit breaker to be in place, and then gradually recovering the disassembled equipment. In the replacement process, 3 cranes are matched with channel steel brackets, 2 cranes are used for supporting the components to be removed, another 25-ton crane is used for bypassing the cable box and the supporting frame, the HGIS circuit breaker to be replaced is difficultly lifted out slowly in various angles and changing positions, and then a new HGIS circuit breaker is slowly installed in the original position by the crane in the angle and changing positions, so that the compact HGIS circuit breaker replacement is completed. The difficulties and problems encountered in the replacement of the existing HGIS circuit breaker are as follows: (1) The crane is required to park around the breaker during replacement, the upper part is not shielded, the arrangement mode of the breaker of the HGIS equipment is compact, the upper part is generally provided with a bus, the crane is difficult to spread and often needs to accompany and stop, and meanwhile, the indoor crane cannot enter the replacement. (2) If the large-area dismantling is performed, a plurality of sections are formed, and when the sections are recovered, scrubbing, groove cleaning, new sealing rings and adsorbents are required to be replaced, so that the workload multiple is increased, and the risk of air leakage caused by poor treatment is also faced. (3) 3 Cranes are mutually matched, so that a great amount of time is consumed in the replacement process of the HGIS circuit breaker, the operation efficiency is low, the period is long, the generated SF6 recovery vehicle and crane lease cost is high, and the requirement of the operation efficiency is difficult to meet especially in the power outage or rush repair operation environment when the time is about. (4) The 3 cranes are put into use at the same time, and the related crane operation, overhead operation and cross operation bring about very serious site safety control situation. (5) After the steel support processed on site is used once, other conditions of site reuse are often not provided, so that the cyclic utilization rate of the support is low. In summary, quick, simple and efficient replacement of HGIS circuit breakers is becoming an urgent problem in the industry to be solved. Disclosure of utility model The utility model aims to solve the problems in the prior art and provides a compact HGIS breaker replacement device which can replace an HGIS breaker rapidly, simply and efficiently. The utility model aims at solving the problems through the following technical scheme: the compact HGIS breaker replacing device is characterized by comprising a door-shaped bracket used for propping up equipment above a breaker, a transferring rail, a lifting trolley and hydraulic jacks, wherein the transferring rail, the lifting trolley and the hydraulic jacks are paved right below the breaker and extend outwards along the arrangement direction of the breaker, the transferring rail is positioned in the door-shaped bracket and is perpendicular to the door-shaped bracket, at least one pair of lifting trolleys capable of supporting the breaker are arranged on the transferri