CN210120095U

CN210120095U - Circuit breaker for gas insulated switchgear

Info

Publication number: CN210120095U
Application number: CN201921185825.XU
Authority: CN
Inventors: 王小飞; 朱国银; 张伟; 王丹; 陈海华
Original assignee: Anhui Tong Ball Intelligent Technology Co Ltd
Current assignee: Anhui Tong Ball Intelligent Technology Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-02-28
Anticipated expiration: 2029-07-26

Abstract

The utility model provides a circuit breaker for gas insulated switchgear, relates to switch circuit breaker technical field, connects into a whole for solving among the prior art circuit breaker, damages one of them, and whole circuit will paralysed problem, one side of box is located the below of connecting pipe and is provided with the circuit breaker, the upper end of circuit breaker is provided with the fixed orifices, and the circuit breaker passes through the trachea with the connecting pipe and be connected, the lower extreme fixedly connected with fixing base of circuit breaker, the fixing base passes through bolt fixed connection with the base hole. The utility model discloses be provided with the detachable circuit breaker, can be independent between with the circuit breaker through connecting device and fixing base, be convenient for under the prerequisite that single circuit breaker damaged, can independently change and repair the circuit breaker, can not influence the normal work of other circuit breakers, can be convenient for aerify and bleed to the inside of circuit breaker, traditional mode of irritating has been convenient, is provided with the dry steamer tray of extraction formula, change active carbon particle that can be quick.

Description

Circuit breaker for gas insulated switchgear

Technical Field

The utility model relates to a switch circuit breaker technical field especially relates to a circuit breaker for gas insulated switchgear.

Background

With the continuous development of society and economy and the increase of the complexity of engineering construction, the requirements of users on miniaturization, maintenance-free and intellectualization of switch equipment are higher and higher. In the medium-voltage field, particularly in the 35kV voltage class, a conventional switch cabinet using air as an insulating medium generally has a large volume (the width of the cabinet is not less than 1200mm, and the volume is not less than 7m in general), a heavy weight (not less than 2t in general), is difficult to operate, and particularly cannot meet the use requirements under severe environmental conditions such as high altitude, humidity, filth and the like. In this context, C-GIS is becoming more and more interesting.

However, gas circuit breaker equipment on the existing market is for comprising a plurality of circuit breakers, and is connected with multiple circuit, and in case one of them certain circuit breaker breaks down, whole equipment need change promptly and restores, irritates gas again, influences the stability of whole circuit, and in addition, electronic component equipment is more in the cabinet, and is great to the drying cabinet demand, and current drying cabinet department is difficult for taking out in equipment inside, influences the change efficiency.

In order to solve the above problems, a circuit breaker for a gas insulated switchgear is proposed in the present application.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For the technical problem who exists among the solution background art, the utility model provides a circuit breaker for gas insulated switchgear.

(II) technical scheme

The utility model provides a first aspect provides a breaker for gas insulated switchgear, comprising a box body, wherein the upper surface of the box body is provided with a nitrogen cabinet, the upper surface of the nitrogen cabinet is fixedly connected with an air pump, one side of the nitrogen cabinet is connected with a connecting pipe, one side of the box body is arranged below the connecting pipe and is provided with a breaker, the upper end of the breaker is provided with a fixed hole, the breaker is connected with the connecting pipe through an air pipe, the middle section of the air pipe is provided with a valve, the air pipe is rotationally connected with the breaker through a pipe thread A in the connecting device, the lower end of the breaker is fixedly connected with a fixed seat, a seat hole is arranged at the surface position of the breaker corresponding to the box body, the fixed seat is fixedly connected with the seat hole through a bolt, the surface of the box body is arranged at the inner side of the seat hole and is rotationally connected with a box door, one side that the inside of box is located the circuit breaker is provided with the generating line room, and one side that the inside of box is located the circuit breaker is provided with the display lamp, one side that the inside of box is located the display lamp is provided with control panel, and the below that the inside of box is located the fixing base is provided with the grid plate, the inside of box is provided with dry steamer tray corresponding to the position department of grid plate.

Preferably, connecting device is including rotating a section of thick bamboo, the surface of rotating a section of thick bamboo is provided with pipe thread A, and rotates the surface of a section of thick bamboo and be located the outer stopper of the top fixedly connected with of pipe thread A, pipe thread A's upper end is provided with the through-hole, and pipe thread A's inside is located tracheal lower extreme and is provided with the stopper in, tracheal surface is provided with pipe thread B.

Preferably, the inner surface of the through hole is provided with an internal thread engaged with the pipe thread B, one end of the air pipe extends to the inside of the rotating cylinder, and the inner diameter of the inner plug is 1cm longer than the outer diameter of the through hole.

Preferably, the drying drawer comprises a drawer, a wire inlet end is arranged at a position, corresponding to the bus chamber, of one side of the box body, and an internal thread meshed with the pipe thread A is arranged on the inner side of the fixing hole.

Preferably, the interior of the drawer is filled with activated carbon particles, and the drawer is slidably connected with the inner side of the box body.

Preferably, the upper ends of the two sides of the drawer are provided with convex rails, and the positions of the two sides of the grid plate, which correspond to the convex rails, are provided with grooves.

Preferably, four edges of the box body are provided with rubber pads, an air inlet of the air pump is in through connection with the nitrogen cabinet, and an air outlet of the air pump is connected with the connecting pipe.

The above technical scheme of the utility model has following profitable technological effect:

the utility model discloses be provided with the detachable circuit breaker, can be independent between with the circuit breaker through connecting device and fixing base, be convenient for under the prerequisite that single circuit breaker damaged, can independently change and repair the circuit breaker, can not influence the normal work of other circuit breakers, through the setting of valve and nitrogen gas cabinet, can be convenient for aerify and bleed the inside of circuit breaker, traditional mode of irritating has been made things convenient for, be provided with the dry steamer tray of extraction formula, change activated carbon particle that can be quick, can ensure the normal use of equipment, also can practice thrift staff's time.

Drawings

Fig. 1 is a schematic structural view of a circuit breaker for a gas insulated switchgear according to the present invention.

Fig. 2 is a schematic structural diagram of the connection device in the circuit breaker for the gas insulated switchgear according to the present invention.

Fig. 3 is the utility model provides a structural schematic diagram of dry steamer tray in circuit breaker for gas insulated switchgear.

In figure 1, nitrogen cabinet; 2. a box body; 3. a fixing hole; 4. a circuit breaker; 5. a wire inlet hole; 6. a bus chamber; 7. a box door; 8. a display lamp; 9. drying the drawer; 91. a groove; 92. a raised rail; 93. a drawer; 10. a grid plate; 11. a base hole; 12. a fixed seat; 13. a bolt; 14. a connecting device; 141. a through hole; 142. a rotating cylinder; 143. an inner plug; 144. pipe thread A; 145. an outer plug; 146. pipe thread B; 15. an air tube; 16. a valve; 17. a connecting pipe; 18. a control panel; 19. an air pump.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the utility model provides a circuit breaker for gas insulated switchgear, which comprises a box body 2, the upper surface of the box body 2 is provided with a nitrogen gas tank 1, the upper surface of the nitrogen gas tank 1 is fixedly connected with an air pump 19, one side of the nitrogen gas tank 1 is connected with a connecting pipe 17, one side of the box body 2 is arranged below the connecting pipe 17 and is provided with a circuit breaker 4, the upper end of the circuit breaker 4 is provided with a fixed hole 3, the circuit breaker 4 is connected with the connecting pipe 17 through a gas pipe 15, the middle section of the gas pipe 15 is provided with a valve 16, the gas pipe 15 is rotatably connected with the circuit breaker 4 through a pipe thread a144 in a connecting device 14, the lower end of the circuit breaker 4 is fixedly connected with a fixed seat 12, the circuit breaker 4 is provided with a seat hole 11 corresponding to the surface position of the box body 2, the fixed seat 12 is fixedly connected with the seat hole 11 through a bolt 13, and a box door 7 is rotatably connected below the front side of the box body 2, a bus chamber 6 is arranged at one side of the inside of the box body 2, which is positioned at the circuit breaker 4, a display lamp 8 is arranged at one side of the inside of the box body 2, which is positioned at the display lamp 8, a control panel 18 is arranged at one side of the inside of the box body 2, a grid plate 10 is arranged at the lower side of a fixed seat 12, a drying drawer 9 is arranged at a position of the inside of the box body 2, which corresponds to the grid plate 10, when one circuit breaker 4 is damaged, the box door 7 is firstly opened to cut off a circuit in a wire inlet 5 in the corresponding circuit breaker 4, a corresponding valve 16 is then opened, nitrogen in the circuit breaker is extracted through an air pump 19, the valve is further closed, an air pipe 15 is separated from the circuit breaker 4 through a connecting device 14, and the fixed seat 12 is loosened through rotating a bolt 13, so that the circuit, and the normal operation of other circuit breakers 4 is not affected.

As shown in fig. 2, the connection device 14 includes a rotary cylinder 142, a pipe thread a144 is provided on the surface of the rotary cylinder 142, an outer plug 145 is fixedly connected to the surface of the rotary cylinder 142 above the pipe thread a144, a through hole 141 is provided at the upper end of the pipe thread a144, an inner plug 143 is provided at the lower end of the pipe thread a144, a pipe thread B146 is provided on the surface of the air pipe 15, by rotating the rotary cylinder 142, the rotary cylinder 142 moves downward under the engagement of the pipe thread B146, the pipe thread a144 is further engaged and fixed in the fixed hole 3, the inner plug 143 can be ensured to be tightly attached to the inner upper surface of the rotary cylinder 142 when the rotary cylinder 142 is in close contact with the fixed hole 3, and gas leakage from the through hole 141 is prevented, and the outer plug 145 is provided to prevent gas inside the circuit breaker 4 from leaking from the threads.

In an alternative embodiment, the inner surface of the through hole 141 is provided with an internal thread engaged with the pipe thread B146, one end of the air pipe 15 extends to the inside of the rotary cylinder 142, the inner diameter of the inner plug 143 is 1cm longer than the outer diameter of the through hole 141, and the air pipe 15 is rotatably coupled with the rotary cylinder 142, thereby forming an adjustable coupling means 14 to facilitate the separation of the air pipe 15 from the circuit breaker.

As shown in fig. 3, the drying drawer 9 includes a drawer 93, the upper ends of the two sides of the drawer 93 are provided with protruding rails 92, the two sides of the grid plate 10 are provided with grooves 91 corresponding to the protruding rails 92, the drawer 93 is pulled, and the protruding rails 92 at the upper end of the further drawer can move in the grooves 91 in the grid plate 10, so that the drawer 93 can be stably moved and the drying agent can be quickly replaced.

In an alternative embodiment, the interior of the drawer 93 is filled with activated carbon granules, and the drawer 93 is slidably connected to the inside of the box 2, so as to facilitate quick replacement of the desiccant, and the activated carbon granules can dry the environment and adsorb odor emitted from electronic components in the environment.

In an alternative embodiment, a line inlet end is arranged at a position corresponding to the bus bar chamber 6 on one side of the box body 2, an internal thread for engaging with the pipe thread a144 is arranged on the inner side of the fixing hole 3, and the fixing hole 3 and the rotating cylinder 142 are rotatably connected through threads, so that the disassembly and the assembly are convenient.

In an optional embodiment, four corners of the box body 2 are provided with rubber pads, an air inlet of the air pump 19 is communicated with the nitrogen cabinet 1, an air outlet of the air pump 19 is connected with the connecting pipe 17, so that the air in each circuit breaker 4 can be conveniently controlled, and the air is pumped out when being replaced, thereby reducing the cost and facilitating the operation.

It should be noted that, when a certain breaker 4 is damaged, the door 7 is opened first to cut off the line in the wire inlet 5 of the corresponding breaker 4, the corresponding valve 16 is opened next, the nitrogen gas in the breaker is pumped out by the air pump 19, the valve is further closed, by rotating the rotary cylinder 142, the rotary cylinder 142 moves downward under the occlusion of the pipe thread B146, the further pipe thread a144 is occluded and fixed in the fixed hole 3, the inner plug 143 can ensure that the rotary cylinder 142 can be tightly attached to the inner upper surface of the rotary cylinder 142 when being in tight contact with the fixed hole 3, so as to prevent the gas from leaking from the through hole 141, the outer plug 145 is arranged to prevent the gas inside the breaker 4 from leaking out from the thread, the gas pipe 15 is separated from the breaker 4, and the fixed seat 12 is loosened by rotating the bolt 13, so that the breaker 4 can be taken down for repair and replacement without affecting the normal operation of other breakers 4, the operation of the connecting device 14 pulls the drawer 93, and the convex rail 92 at the upper end of the further drawer moves in the groove 91 in the grid plate 10, so that the drawer 93 can stably move, and the activated carbon particles can be rapidly replaced.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The circuit breaker for the gas insulated switchgear is characterized by comprising a box body (2), wherein a nitrogen cabinet (1) is arranged on the upper surface of the box body (2), an air pump (19) is fixedly connected to the upper surface of the nitrogen cabinet (1), a connecting pipe (17) is connected to one side of the nitrogen cabinet (1), a circuit breaker (4) is arranged on one side of the box body (2) and located below the connecting pipe (17), a fixing hole (3) is formed in the upper end of the circuit breaker (4), the circuit breaker (4) is connected with the connecting pipe (17) through an air pipe (15), a valve (16) is arranged in the middle section of the air pipe (15), the air pipe (15) is rotatably connected with the circuit breaker (4) through a pipe thread A (144) in a connecting device (14), a fixing seat (12) is fixedly connected to the lower end of the circuit breaker (4), and a base hole (11) is formed in the position, corresponding to the surface of the box body (2), of the circuit, fixing base (12) and base hole (11) pass through bolt (13) fixed connection, the inboard that the surface of box (2) is located base hole (11) is provided with entrance hole (5), and the front side below of box (2) rotates and is connected with chamber door (7), one side that the inside of box (2) is located circuit breaker (4) is provided with generating line room (6), and one side that the inside of box (2) is located circuit breaker (4) is provided with display lamp (8), one side that the inside of box (2) is located display lamp (8) is provided with control panel (18), and the below that the inside of box (2) is located fixing base (12) is provided with grid plate (10), the position department that the inside of box (2) corresponds to grid plate (10) is provided with dry steamer tray (9).

2. The circuit breaker for gas insulated switchgear according to claim 1, wherein the connecting device (14) comprises a rotating cylinder (142), a pipe thread A (144) is disposed on the surface of the rotating cylinder (142), an outer plug (145) is fixedly connected to the surface of the rotating cylinder (142) above the pipe thread A (144), a through hole (141) is disposed at the upper end of the pipe thread A (144), an inner plug (143) is disposed at the lower end of the gas pipe (15) in the pipe thread A (144), and a pipe thread B (146) is disposed on the surface of the gas pipe (15).

3. The circuit breaker for gas insulated switchgear according to claim 2, wherein the inner surface of the through hole (141) is provided with an internal thread engaged with a pipe thread B (146), one end of the gas pipe (15) extends to the inside of the rotary cylinder (142), and the inner diameter of the inner plug (143) is longer than the outer diameter of the through hole (141) by 1 cm.

4. The circuit breaker for gas insulated switchgear according to claim 2, wherein a line inlet end is provided at a position corresponding to the bus bar chamber (6) on one side of the case (2), and an internal thread engaging the pipe thread a (144) is provided on the inner side of the fixing hole (3).

5. The circuit breaker for gas insulated switchgear according to claim 1, wherein the drying drawer (9) comprises a drawer (93), the upper ends of both sides of the drawer (93) are provided with a protruding rail (92), and the positions of both sides of the grid plate (10) corresponding to the protruding rail (92) are provided with grooves (91).

6. The circuit breaker for gas insulated switchgear according to claim 5, characterized in that the interior of the drawer (93) is filled with activated carbon particles, and the drawer (93) is slidably connected to the inside of the cabinet (2).

7. The circuit breaker for gas insulated switchgear according to claim 1, wherein rubber pads are disposed at four corners of the box (2), the air inlet of the air pump (19) is connected to the nitrogen tank (1), and the air outlet of the air pump (19) is connected to the connecting pipe (17).