CN202019160U - Pressure relieving device for gas insulation metal sealing switch equipment - Google Patents
Pressure relieving device for gas insulation metal sealing switch equipment Download PDFInfo
- Publication number
- CN202019160U CN202019160U CN2011200670715U CN201120067071U CN202019160U CN 202019160 U CN202019160 U CN 202019160U CN 2011200670715 U CN2011200670715 U CN 2011200670715U CN 201120067071 U CN201120067071 U CN 201120067071U CN 202019160 U CN202019160 U CN 202019160U
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- CN
- China
- Prior art keywords
- gas tank
- pressure disc
- lug boss
- rupture pressure
- threaded hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a pressure relieving device for gas insulation metal sealing switch equipment, which solves the problems that the pressure relieving device in the prior art has a small pressure release area, the pressure release time is long, the safety is low, and the use is inconvenient. The pressure relieving device is characterized in that square steel with a threaded hole is welded on the box body, a press plate is arranged on the square steel with the threaded hole, a rupture membrane is in a square shape, the peripheral edge of the rupture membrane is provided with an upwards projected edge, the middle of the rupture membrane is provided with an upwards projected circular lug boss, in addition, a lug boss through hole is processed on the circular lug boss, a large sealing rubber ring is arranged between the projected edge and an air box, a small sealing rubber ring is arranged between the circular lug boss and the air box, the press plate is fastened and connected with the square steel with the threaded hole through a fastening screw and a first gasket for tightly pressing the large sealing rubber ring, and the press plate is fastened and connected with a small press ring arranged on the circular lug boss and the lug boss through hole through a welding stud, a screw nut and a second gasket for tightly pressing the small sealing rubber ring. Compared with the prior art, the pressure relieving device has the advantages that the release area is large, the pressure relieving time is short, and the safety is high.
Description
Technical field
The utility model belongs to high voltage electrical apparatus technical field, particularly a kind of pressure relief device of Cubicle Gas-Insulated Switchgear.
Background technology
At present, the pressure relief device that on the airtight gas tank of Cubicle Gas-Insulated Switchgear, uses, mostly being upper and lower holder clamping antiarch shape rupture pressure disc assembly greatly is connected with welding screw on the gas tank casing, the clamper flange is connected the back fastening nut with welding screw, compress sealing ring, this structural design, all are fastenedly connected by welding screw and bear, each welding screw contacts with the gas tank casing separately, therefore the stud welding area is less, and weld strength can not get guaranteeing, when fastening nut, obscission takes place sometimes, thereby fail safe is low; In addition, rupture pressure disc be shaped as circle, it is little that pressure discharges area, pressure is long release time, and when gas pressure reached relief pressure value in the gas tank, rupture pressure disc was cut the film sword by zigzag and cut off, gas release in the gas tank, the part that rupture pressure disc is cut off is splashed away, causes danger easily.And, perfect guaranteeing release pressure in order to guarantee rupture pressure disc, this pressure relief device rupture pressure disc absolute prohibition scratching and scuffing, otherwise, even it is there is small distortion all can influence the release pressure of its design, therefore in use very inconvenient.
Summary of the invention
Problem to be solved in the utility model is, overcomes the deficiencies in the prior art part, and a kind of pressure relief device that discharges that area is big, the pressure release time is short and can guarantee a kind of Cubicle Gas-Insulated Switchgear of pressure release safety is provided.
The technical solution adopted in the utility model comprises gas tank, installation rupture pressure disc on the pressure release orifice of gas tank, welding square steel with threaded hole on the casing around the gas tank upward pressure liberation port, on square steel with threaded hole, pressing plate is installed, described rupture pressure disc is square, there is lug edge upwards the rupture pressure disc edge, the round boss that raises up is arranged in the middle of the rupture pressure disc, and on round boss, be processed with the boss through hole, the lug of rupture pressure disc along and gas tank between big O-ring seal is installed, little O-ring seal is installed between the round boss of rupture pressure disc intermediate projections and gas tank, pressing plate is fastenedly connected by trip bolt and first packing ring and square steel with threaded hole and compresses big O-ring seal, and pressing plate passes through welding screw, the nut and second packing ring be installed on the round boss and the boss through hole in little compacting ring be fastenedly connected and compress little O-ring seal.In the work, gas tank is air-tight state, arcing takes place in gas tank, when making gas reach release pressure, the very fast distortion of rupture pressure disc, when one side that distortion makes rupture pressure disc when the big O-ring seal that compresses is extracted out, high-pressure gas in the gas tank discharges rapidly, powerful air-flow is washed one side of rupture pressure disc open, is discharged into the gas tank outside, thus safety relief.
Compared with prior art, the utility model rupture pressure disc is designed to square, makes the release area bigger than circle, and the pressure release time is shorter, square steel with threaded hole and casing welding, and weld strength is guaranteed, and is safer during pressure release; Owing to adopt rupture pressure disc mode of texturing release pressure, as long as do not reach the dynamics of rupture pressure disc distortion, just can release pressure, so rupture pressure disc has small distortion and little colliding with also can not influence the release pressure of its design.
Description of drawings
Fig. 1 is a main cutaway view of the present utility model,
Fig. 2 is the A-A cutaway view of Fig. 1,
Fig. 3 is the B portion enlarged drawing of Fig. 1,
Fig. 4 is the C portion enlarged drawing of Fig. 1,
Fig. 5 is the front view of the utility model rupture pressure disc,
Fig. 6 is the D-D cutaway view of Fig. 5,
Fig. 7 is the E portion enlarged drawing of Fig. 6.
Among the figure:
1. gas tank, square steel 2. with threaded hole,
3. big O-ring seal, 4. trip bolt,
5. first packing ring, 6. pressing plate,
7. rupture pressure disc,
7-1. the lug edge,
7-2. round boss,
7-3. the boss through hole,
8. nut, 9. welding screw,
10. second packing ring, 11. little compacting rings,
12. little O-ring seal, 13. stuffing box pressure relief openings.
Embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the utility model comprises gas tank 1, gas tank 1 has 6 pressure release orifices 13, rupture pressure disc 7 of making by thin corrosion resistant plate of installation on 6 pressure release orifices 13 of gas tank 1, as shown in Figure 5 and Figure 6, described rupture pressure disc 7 is square, there is lug upwards rupture pressure disc 7 edges along 7-1,2 round boss 7-2 that raise up are arranged in the middle of the rupture pressure disc 7, and on round boss 7-2, be processed with boss through hole 7-3, at the lug of rupture pressure disc (7) along big O-ring seal 3 is installed between 7-1 and the gas tank 1, little O-ring seal 12 is installed between the round boss 7-2 of rupture pressure disc 7 intermediate projections and gas tank 1, welding square steel 2 with threaded hole on 6 pressure release orifices 13 casing all around on the gas tank 1, pressing plate 6 is installed on square steel with threaded hole 2, the centre of described pressing plate 6 is processed with 2 circular counter bore, also be processed with through hole 2 circular counter bore bottoms, pressing plate 6 is fastenedly connected by trip bolt 4 and first packing ring 5 and square steel 2 with threaded hole and compresses big O-ring seal 3, pressing plate 6 by be welded on welding screw 9 on gas tank 1 casing and nut 8 and second packing ring 10 be installed in that round boss 7-2 goes up and boss through hole 7-3 in little compacting ring 11 be fastenedly connected and compress little O-ring seal 12, in the work, gas tank is air-tight state under the sealing of rupture pressure disc, when the generation arcing makes gas reach release pressure in the gas tank, the very fast distortion of rupture pressure disc, when one side that distortion makes rupture pressure disc when the big O-ring seal that compresses is extracted out, gas tank inner high voltage strength body discharges rapidly, powerful air-flow is washed one side of rupture pressure disc open, be discharged into the gas tank outside, thus safety relief.
Claims (1)
1. the pressure relief device of a Cubicle Gas-Insulated Switchgear, comprise gas tank (1), installation rupture pressure disc (7) on the pressure release orifice (13) of gas tank (1), it is characterized in that, welding square steel (2) with threaded hole on gas tank (1) upward pressure liberation port (13) casing all around, go up installation pressing plate (6) at square steel with threaded hole (2), described rupture pressure disc (7) is square, there is lug upwards rupture pressure disc (7) edge along (7-1), the round boss (7-2) that raises up is arranged in the middle of the rupture pressure disc (7), and on round boss (7-2), be processed with boss through hole (7-3), lug at rupture pressure disc (7) is installed big O-ring seal (3) along between (7-1) and the gas tank (1), little O-ring seal (12) is installed between the round boss (7-2) of rupture pressure disc (7) intermediate projections and gas tank (1), pressing plate (6) is fastenedly connected by trip bolt (4) and first packing ring (5) and square steel (2) with threaded hole and compresses big O-ring seal (3), and pressing plate (6) is by welding screw (9), nut (8) and second packing ring (10) be installed in that round boss (7-2) is gone up and boss through hole (7-3) in little compacting ring (11) be fastenedly connected and compress little O-ring seal (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200670715U CN202019160U (en) | 2011-03-15 | 2011-03-15 | Pressure relieving device for gas insulation metal sealing switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200670715U CN202019160U (en) | 2011-03-15 | 2011-03-15 | Pressure relieving device for gas insulation metal sealing switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202019160U true CN202019160U (en) | 2011-10-26 |
Family
ID=44812827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200670715U Expired - Fee Related CN202019160U (en) | 2011-03-15 | 2011-03-15 | Pressure relieving device for gas insulation metal sealing switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202019160U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001139A (en) * | 2012-12-14 | 2013-03-27 | 广西银河迪康电气有限公司 | Pressure relief device for gas insulation switch device |
| CN103296610A (en) * | 2013-06-21 | 2013-09-11 | 无锡中科电气设备有限公司 | High-pressure sealing pressure relief device |
| CN104362575A (en) * | 2014-09-22 | 2015-02-18 | 国家电网公司 | Cable earth box with pressure release device |
| CN106025903A (en) * | 2016-06-28 | 2016-10-12 | 河南平芝高压开关有限公司 | Switch device and protector for explosion-proof film of switch device |
| CN106195373A (en) * | 2016-09-12 | 2016-12-07 | 云南冶金新立钛业有限公司 | Pipeline pressure-relief device |
| CN106848909A (en) * | 2017-04-24 | 2017-06-13 | 江苏大全长江电器股份有限公司 | One kind is without isolated switchgear under bin static contact non-SF 6 gas insulative |
| CN106848908A (en) * | 2017-04-24 | 2017-06-13 | 江苏大全长江电器股份有限公司 | One kind is without bin static contact non-SF 6 gas insulative switchgear |
| CN113775798A (en) * | 2020-06-10 | 2021-12-10 | Abb瑞士股份有限公司 | Pressure release device |
-
2011
- 2011-03-15 CN CN2011200670715U patent/CN202019160U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001139A (en) * | 2012-12-14 | 2013-03-27 | 广西银河迪康电气有限公司 | Pressure relief device for gas insulation switch device |
| CN103296610A (en) * | 2013-06-21 | 2013-09-11 | 无锡中科电气设备有限公司 | High-pressure sealing pressure relief device |
| CN104362575A (en) * | 2014-09-22 | 2015-02-18 | 国家电网公司 | Cable earth box with pressure release device |
| CN106025903A (en) * | 2016-06-28 | 2016-10-12 | 河南平芝高压开关有限公司 | Switch device and protector for explosion-proof film of switch device |
| CN106195373A (en) * | 2016-09-12 | 2016-12-07 | 云南冶金新立钛业有限公司 | Pipeline pressure-relief device |
| CN106195373B (en) * | 2016-09-12 | 2019-01-04 | 云南冶金新立钛业有限公司 | Pipeline pressure-relief device |
| CN106848909A (en) * | 2017-04-24 | 2017-06-13 | 江苏大全长江电器股份有限公司 | One kind is without isolated switchgear under bin static contact non-SF 6 gas insulative |
| CN106848908A (en) * | 2017-04-24 | 2017-06-13 | 江苏大全长江电器股份有限公司 | One kind is without bin static contact non-SF 6 gas insulative switchgear |
| CN113775798A (en) * | 2020-06-10 | 2021-12-10 | Abb瑞士股份有限公司 | Pressure release device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20170315 |