CN203431190U - Self-sealing valve used for sulfur hexafluoride gas circuit breaker - Google Patents
Self-sealing valve used for sulfur hexafluoride gas circuit breaker Download PDFInfo
- Publication number
- CN203431190U CN203431190U CN201320534252.3U CN201320534252U CN203431190U CN 203431190 U CN203431190 U CN 203431190U CN 201320534252 U CN201320534252 U CN 201320534252U CN 203431190 U CN203431190 U CN 203431190U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- spool
- self
- circuit breaker
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- SFZCNBIFKDRMGX-UHFFFAOYSA-N Sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 14
- 230000000875 corresponding Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a self-sealing valve used for a sulfur hexafluoride gas circuit breaker. The self-sealing valve comprises a valve seat, a valve element and a spring, wherein the valve element is located in a valve cavity of the valve seat, the valve element is provided with an ejector pin, a conical sealing surface matched with the conical surface of the wall of the valve cavity is arranged on the valve element, a sealing part is installed on the conical sealing surface of the valve element, the spring is located between the valve element and a screw plug, and the screw plug provided with a central through hole is connected to one end of the valve cavity. After the self-sealing valve used for the sulfur hexafluoride gas circuit breaker is used, make-break operation of the sulfur hexafluoride gas circuit breaker used on high-voltage electrical equipment can be more convenient, and sealing is more reliable.
Description
Technical field
The utility model relates to circuit breaker, especially the Self-sealing valve on sulfur hexafluoride gas circuit breaker.
Background technique
At present on the high-voltage electrical equipment of electric power system, for the valve on the alternate path of sulfur hexafluoride gas circuit breaker, be generally ball check valve, while needing alternate path to carry out break-make in use, must use the handle knob of handling ball check valve, there is unhandy problem, ball check valve has been grown later easily inefficacy service time, causes potential safety hazard.
Model utility content
The purpose of this utility model is to provide a kind of Self-sealing valve for sulfur hexafluoride gas circuit breaker, adopts this Self-sealing valve, and the make-break operation of the alternate path of circuit breaker is more convenient, and sealing is more reliable.
For realizing above-mentioned technical purpose, Self-sealing valve for sulfur hexafluoride gas circuit breaker of the present utility model, include valve seat, spool and spring, spool is positioned in the valve pocket of valve seat, spool is with a thimble, and spool is provided with a conical seal (contact) face and coordinates with the conical surface of valve cavity wall, on the conical seal (contact) face of spool, Sealing is housed, spring is between spool and plug screw, and the plug screw with central through bore is connected to one end of valve pocket.
The conical seal (contact) face of spool, under the effect of spring on the conical surface that is resisted against valve cavity wall tightly, makes valve pocket in off state at ordinary times.When needs are connected, Compress Spring after the thimble pressurized of spool, the conical seal (contact) face of spool leaves the conical surface of valve cavity wall, thereby make valve pocket conducting, the thimble matching is set on the device junction being attached thereto or pipe joint, realization is connected when connecting, and realizes automatic cut-off sealing when disconnecting.
Adopt after the utility model, convenient to the make-break operation meeting of sulfur hexafluoride breaker used on high voltage electric equipment, and sealing is also more reliable.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1, Self-sealing valve for sulfur hexafluoride gas circuit breaker of the present utility model, contain valve seat 1, spool 2 and spring 3, spool 2 is positioned in the valve pocket of valve seat 1, spool 2 is with a thimble 2a, and spool 2 is provided with a conical seal (contact) face and coordinates with the conical surface of valve cavity wall, and Sealing 2b is housed on the conical seal (contact) face of spool 2, spring 3 is between spool 2 and plug screw 4, and the plug screw 4 with central through bore is connected to one end of valve pocket.
The conical seal (contact) face of spool 2, under the effect of spring 3 on the conical surface that is resisted against valve cavity wall tightly, makes valve pocket in off state at ordinary times.When needs are connected, Compress Spring 3 after the thimble 2a pressurized of spool 2, the conical seal (contact) face of spool 2 leaves the conical surface of valve cavity wall, thereby make valve pocket conducting, the thimble matching is set on the device junction being attached thereto or pipe joint, realization is connected when connecting, and realizes automatic cut-off sealing when disconnecting.
The two ends of valve seat 1 are equipped with outside thread, on valve seat 1, corresponding to the axle journal root that is provided with that one end of thimble, seal ring 5 are housed, and while being connected with pipe joint, seal.Use after this Self-sealing valve, convenient to the make-break operation meeting of sulfur hexafluoride breaker used on high voltage electric equipment, and sealing is also more reliable.
Claims (2)
1. the Self-sealing valve for sulfur hexafluoride gas circuit breaker, it is characterized in that: comprise valve seat, spool and spring, spool is positioned in the valve pocket of valve seat, spool is with a thimble, spool is provided with a conical seal (contact) face and coordinates with the conical surface of valve cavity wall, on the conical seal (contact) face of spool, Sealing is housed, spring is between spool and plug screw, and the plug screw with central through bore is connected to one end of valve pocket.
2. the Self-sealing valve for sulfur hexafluoride gas circuit breaker according to claim 1, is characterized in that: the two ends of described valve seat are equipped with outside thread, on valve seat, corresponding to the axle journal root that is provided with that one end of thimble, seal ring is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534252.3U CN203431190U (en) | 2013-08-30 | 2013-08-30 | Self-sealing valve used for sulfur hexafluoride gas circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534252.3U CN203431190U (en) | 2013-08-30 | 2013-08-30 | Self-sealing valve used for sulfur hexafluoride gas circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431190U true CN203431190U (en) | 2014-02-12 |
Family
ID=50060228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320534252.3U Active CN203431190U (en) | 2013-08-30 | 2013-08-30 | Self-sealing valve used for sulfur hexafluoride gas circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431190U (en) |
-
2013
- 2013-08-30 CN CN201320534252.3U patent/CN203431190U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |