CN216699333U

CN216699333U - Gas-insulated accident-prevention ring main unit

Info

Publication number: CN216699333U
Application number: CN202123430593.XU
Authority: CN
Inventors: 陈刚健; 廖飞; 罗芬芬; 李序飚; 蒋其酉
Original assignee: Ccre Electric Co ltd
Current assignee: Ccre Electric Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-07
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a gas-insulated accident-prevention ring main unit, which comprises a cabinet body, wherein a gas filling cavity is formed in the middle of the side wall of the cabinet body, a buffering assembly is arranged at the position of the edge part at the front end of the cabinet body, the buffering assembly comprises a fixing hole, a fixing pipe, a connecting hole, an annular plate, a buffering rod, a sealing circular block, a connecting circular ring, a sealing backing ring and scale marks, the fixing hole is symmetrically formed at the position of the edge part at the front end of the cabinet body, the fixing pipe is welded in the fixing hole, the connecting hole penetrates through one end of the fixing pipe, and the annular plate is welded at the other end of the fixing pipe. The service life is prolonged.

Description

Gas-insulated accident-prevention ring main unit

Technical Field

The utility model relates to the technical field of ring main units, in particular to a gas-insulated accident-prevention ring main unit.

Background

The ring main unit is a group of electric equipment of transmission and distribution which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval ring main power supply unit, one of the ring main units insulated by charging gas is widely used, and can play a role in insulation protection;

however, the expansion volume of the gas inside the currently used gas insulation ring main unit is too large in the weather with higher temperature, so that the pressure intensity of the gas inside the ring main unit is increased, and the cabinet body is damaged by the pressure intensity of the gas in the larger pressure intensity, so that the gas leakage is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gas-insulated accident-prevention ring main unit, which can effectively solve the problems that the expansion volume of gas in the currently used gas-insulated ring main unit is too large in the weather of high temperature, so that the pressure of the gas in the ring main unit is increased, and the cabinet body is damaged by high pressure to cause gas leakage.

In order to achieve the purpose, the utility model provides the following technical scheme: a gas-insulated accident-prevention ring main unit comprises a main unit body, wherein a gas filling cavity is formed in the middle of the side wall of the main unit body, and a buffering assembly is installed at the position of the end edge of the front side of the main unit body;

the buffer assembly comprises a fixing hole, a fixing pipe, a connecting hole, an annular plate, a buffer rod, a sealing circular block, a connecting circular ring, a sealing gasket ring and scale marks;

the cabinet comprises a cabinet body and is characterized in that fixing holes are symmetrically formed in the edge position of the front end of the cabinet body, fixing pipes are welded in the fixing holes, one ends of the fixing pipes penetrate through connecting holes, annular plates are welded at the other ends of the fixing pipes, a buffer rod is clamped in the middle of each fixing pipe, a sealing round block is welded at one end of each buffer rod, a connecting ring is welded on the outer end face of the middle of each buffer rod, sealing cushion rings are respectively connected to the outer end faces of the sealing round blocks and the connecting ring in a gluing mode, and scale marks are etched on the outer end face of the other end of each buffer rod;

the bottom of the front end of the cabinet body is provided with a pressure relief assembly;

the pressure relief assembly comprises a mounting hole, a connecting pipe, a pressure relief valve and a threaded short connecting pipe;

the cabinet body front end bottom runs through and has seted up the mounting hole, mounting hole internal weld has the connecting pipe, the embedding of connecting pipe middle part installs the relief valve, the welding of connecting pipe one end has the threaded connection nozzle stub.

Preferably, the inner diameter of the fixing pipe is twice the diameter of the connecting hole, and the inner diameter of the annular plate is 1.1 times the diameter of the buffer rod.

Preferably, the pressure release valve is embedded in the middle of one end of the connecting pipe corresponding to the threaded connection short pipe, and threads are formed on the inner side and the outer end face of the threaded connection short pipe.

Preferably, the bottom of the cabinet body is provided with a dehumidifying component;

the dehumidification assembly comprises a metal net, a dehumidification box, a clamping plate, a silica gel desiccant, a limiting hole, an installation bent pipe and a hygrometer;

the welding of the inboard bottom of the cabinet body has the metal mesh, the joint has the dehumidification case between metal mesh and the cabinet body bottom, dehumidification roof portion symmetrical welding has the joint board, the inside packing of dehumidification case has the silica gel drier, cabinet body bottom is run through and has been seted up spacing hole, spacing downthehole portion embedding is installed the installation return bend, the hygrometer is installed to installation return bend one end.

Preferably, the radius of the meshes of the metal net is 0.2cm, and the bottom end of the clamping plate is attached to the top end of the metal net.

Preferably, one end of the limiting hole is arranged at the bottom end of the inner side of the cabinet body, and the other end of the limiting hole is arranged at the bottom of the side end of the cabinet body.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use:

1. through setting up fixed pipe, connecting hole, buffer beam, sealed circle piece, connection ring, sealing gasket ring and scale mark, sealed circle piece, connection ring and buffer beam remove along fixed intraductal wall, reach the effect of buffering, avoid circumstances such as inside gas inflation to lead to the cabinet body to damage and reveal gas, reach increase of service life.

2. Through setting up mounting hole, connecting pipe, relief valve and threaded connection nozzle stub, meet the internal fault of cabinet and lead to the too big circumstances such as gaseous pressure, be connected threaded connection nozzle stub and collection device, then open the relief valve, with inside gaseous input collection device, reach the purpose of pressure release, reduce accident rate, the security that improves the device and use.

3. Through setting up metal mesh, dehumidification case, joint board, silica gel drier, spacing hole, installation return bend and hygrometer, the silica gel drier of dehumidification incasement portion adsorbs the internal portion moisture of cabinet to through the internal portion humidity of hygrometer real-time detection cabinet, change the silica gel drier, reach the purpose of dehumidification, avoid the damage of the internal portion components and parts of cabinet.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional structural view of the present invention;

FIG. 3 is a schematic view of a pressure relief assembly of the present invention;

FIG. 4 is a schematic view of the construction of the cushioning assembly of the present invention;

FIG. 5 is a schematic view of the structure of the dehumidifying case of the present invention;

reference numbers in the figures: 1. a cabinet body; 2. a gas-filled cavity;

3. a buffer assembly; 301. a fixing hole; 302. a fixed tube; 303. connecting holes; 304. an annular plate; 305. a buffer rod; 306. sealing the round block; 307. connecting the circular rings; 308. a sealing gasket ring; 309. scale lines;

4. a pressure relief assembly; 401. mounting holes; 402. a connecting pipe; 403. a pressure relief valve; 404. the short pipe is connected by screw thread;

5. a dehumidification assembly; 501. a metal mesh; 502. a dehumidification box; 503. a clamping and connecting plate; 504. a silica gel desiccant; 505. a limiting hole; 506. installing a bent pipe; 507. and a hygrometer.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-5, the utility model provides a technical scheme, and a gas-insulated accident-prevention ring main unit comprises a cabinet body 1, wherein a gas filling cavity 2 is formed in the middle of the side wall of the cabinet body 1, and a buffering assembly 3 is arranged at the edge part of the front end of the cabinet body 1;

the buffer component 3 comprises a fixing hole 301, a fixing pipe 302, a connecting hole 303, an annular plate 304, a buffer rod 305, a sealing round block 306, a connecting round ring 307, a sealing gasket ring 308 and scale marks 309;

the cabinet body 1 is characterized in that fixing holes 301 are symmetrically formed in the positions of the edge of the front end of the cabinet body 1, fixing pipes 302 are welded inside the fixing holes 301, one ends of the fixing pipes 302 are penetrated through and provided with connecting holes 303, annular plates 304 are welded at the other ends of the fixing pipes 302, buffer rods 305 are clamped in the middle of the fixing pipes 302, the inner diameters of the fixing pipes 302 are twice of the diameters of the connecting holes 303, the inner diameters of the annular plates 304 are 1.1 times of the diameters of the buffer rods 305, installation and limiting of the buffer rods 305 are facilitated, sealing round blocks 306 are welded at one ends of the buffer rods 305, connecting rings 307 are welded on the outer end faces of the middle portions of the buffer rods 305, sealing cushion rings 308 are respectively welded on the outer end faces of the sealing round blocks 306 and the connecting rings 307, and scale marks 309 are etched on the outer end faces of the other ends of the buffer rods 305;

the bottom of the front end of the cabinet body 1 is provided with a pressure relief assembly 4;

the pressure relief assembly 4 comprises a mounting hole 401, a connecting pipe 402, a pressure relief valve 403 and a threaded short connecting pipe 404;

the mounting hole 401 has been seted up in cabinet body 1 front end bottom runs through, and mounting hole 401 internal weld has connecting pipe 402, and connecting pipe 402 mid-mounting has relief valve 403, and connecting pipe 402 one end welding has threaded connection nozzle stub 404, and relief valve 403 embedding is installed in the one end middle part that connecting pipe 402 corresponds threaded connection nozzle stub 404, and threaded connection nozzle stub 404 inboard is all seted up threadedly with the outside terminal surface, makes things convenient for external collection device.

The bottom of the cabinet body 1 is provided with a dehumidifying component 5;

the dehumidifying component 5 comprises a metal net 501, a dehumidifying box 502, a clamping plate 503, a silica gel desiccant 504, a limiting hole 505, an installation elbow 506 and a hygrometer 507;

the welding of the inboard bottom of the cabinet body 1 has metal mesh 501, the joint has dehumidification case 502 between metal mesh 501 and the cabinet body 1 bottom, dehumidification case 502 top symmetric welding has joint board 503, metal mesh 501's mesh radius is 0.2cm, joint board 503's bottom and the top laminating of metal mesh 501, it is convenient to carry out spacing fixed to dehumidification case 502, the inside packing of dehumidification case 502 has silica gel drier 504, cabinet body 1 bottom is run through and has been seted up spacing hole 505, spacing hole 505 inside embedding is installed installation return bend 506, the inboard bottom of the cabinet body is seted up to the one end of spacing hole 505, the side bottom of the cabinet body 1 is seted up to the spacing hole 505 other end, the installation of the easy to assemble return bend 506 is fixed, the hygrometer 507 is installed to installation return bend 506 one end.

The working principle and the using process of the utility model are as follows: when the gas in the gas filling cavity 2 is heated and expanded, the gas enters the fixed pipe 302 from the connecting hole 303, the sealing round block 306, the connecting ring 307 and the buffer rod 305 are pushed to move along the inner wall of the fixed pipe 302, one end of the buffer rod 305 with the scale mark 309 moves towards the outside of the cabinet body 1, the change condition of the internal pressure is mastered by observing the position where the scale mark 309 moves out, when the gas in the gas filling cavity 2 is cooled and contracted, the sealing round block 306, the connecting ring 307 and the buffer rod 305 move along the inner wall of the fixed pipe 302, one end of the buffer rod 305 with the scale mark 309 moves towards the inside of the cabinet body 1, so that the buffering effect is achieved, the cabinet body 1 is prevented from being damaged and leaking the gas due to the expansion of the internal gas and the like, and the service life is prolonged;

when the internal fault of the cabinet body 1 is on fire or the internal gas pressure is too high, the threaded connection short pipe 404 is connected with the collecting device, then the pressure release valve 403 is opened, the internal gas is input into the collecting device, the purpose of pressure release is achieved, the accident rate is reduced, and the use safety of the device is improved;

the inside silica gel drier 504 of dehumidification case 502 adsorbs the inside moisture of the cabinet body 1 to through the inside humidity of hygrometer 507 real-time detection cabinet body 1, detect inside humidity too big, show that silica gel drier 504 adsorbs the saturation, open the cabinet door and take out dehumidification case 502 and change silica gel drier 504, reach the purpose of dehumidification, avoid the damage of the inside components and parts of the cabinet body 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a gas-insulated accident-proof ring main unit, includes the cabinet body (1), its characterized in that: a gas filling cavity (2) is formed in the middle of the side wall of the cabinet body (1), and a buffering assembly (3) is mounted at the edge of the front end of the cabinet body (1);

the buffer assembly (3) comprises a fixing hole (301), a fixing pipe (302), a connecting hole (303), an annular plate (304), a buffer rod (305), a sealing circular block (306), a connecting circular ring (307), a sealing gasket ring (308) and scale marks (309);

the cabinet comprises a cabinet body (1), wherein fixing holes (301) are symmetrically formed in the position of the edge of the front end of the cabinet body (1), a fixing pipe (302) is welded in the fixing hole (301), a connecting hole (303) is formed in one end of the fixing pipe (302) in a penetrating mode, an annular plate (304) is welded at the other end of the fixing pipe (302), a buffer rod (305) is clamped in the middle of the fixing pipe (302), a sealing round block (306) is welded at one end of the buffer rod (305), a connecting round ring (307) is welded at the outer end face of the middle of the buffer rod (305), sealing cushion rings (308) are respectively welded on the outer end faces of the sealing round block (306) and the connecting round ring (307), and scale marks (309) are etched on the outer end face of the other end of the buffer rod (305);

a pressure relief assembly (4) is arranged at the bottom of the front end of the cabinet body (1);

the pressure relief assembly (4) comprises a mounting hole (401), a connecting pipe (402), a pressure relief valve (403) and a threaded short connecting pipe (404);

the cabinet body (1) front end bottom runs through and has seted up mounting hole (401), mounting hole (401) inside weld has connecting pipe (402), the embedding is installed at connecting pipe (402) middle part has relief valve (403), connecting pipe (402) one end welding has threaded connection nozzle stub (404).

2. A gas insulated accident prevention ring main unit according to claim 1, wherein the inner diameter of the fixing pipe (302) is twice the diameter of the connection hole (303), and the inner diameter of the ring plate (304) is 1.1 times the diameter of the buffer rod (305).

3. The gas-insulated accident-prevention ring main unit according to claim 1, wherein the pressure relief valve (403) is embedded in the middle of one end of the connecting pipe (402) corresponding to the threaded connecting short pipe (404), and the inner side and the outer side end face of the threaded connecting short pipe (404) are both threaded.

4. The gas-insulated accident-prevention ring main unit according to claim 1, wherein a dehumidification assembly (5) is installed at the bottom of the main unit body (1);

the dehumidification assembly (5) comprises a metal net (501), a dehumidification box (502), a clamping plate (503), a silica gel desiccant (504), a limiting hole (505), an installation elbow (506) and a hygrometer (507);

the welding of the inboard bottom of the cabinet body (1) has metal mesh (501), the joint has dehumidification case (502) between metal mesh (501) and the cabinet body (1) bottom, dehumidification case (502) top symmetrical welding has joint board (503), dehumidification case (502) inside packing has silica gel drier (504), the cabinet body (1) bottom is run through and has been seted up spacing hole (505), installation return bend (506) is installed in spacing hole (505) inside embedding, hygrometer (507) is installed to installation return bend (506) one end.

5. The gas-insulated accident-prevention ring main unit according to claim 4, wherein the mesh radius of the metal mesh (501) is 0.2cm, and the bottom end of the clamping plate (503) is attached to the top end of the metal mesh (501).

6. The gas-insulated accident-prevention ring main unit according to claim 4, wherein one end of the limiting hole (505) is opened at the bottom end of the inner side of the main body (1), and the other end of the limiting hole (505) is opened at the bottom of the side end of the main body (1).