CN2450450Y - Valve for gas cylinder - Google Patents
Valve for gas cylinder Download PDFInfo
- Publication number
- CN2450450Y CN2450450Y CN 00249803 CN00249803U CN2450450Y CN 2450450 Y CN2450450 Y CN 2450450Y CN 00249803 CN00249803 CN 00249803 CN 00249803 U CN00249803 U CN 00249803U CN 2450450 Y CN2450450 Y CN 2450450Y
- Authority
- CN
- China
- Prior art keywords
- valve
- ring
- gas cylinder
- pressure
- utility
- 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.)
- Expired - Fee Related
Links
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a valve for a gas cylinder, which can fill oxygen, hydrogen, nitrogen and noble gas, and has vacuum pumping and high temperature, high pressure and low temperature resistance. The valve for a gas cylinder mainly comprises a handwheel, a valve rod, a valve body, a press cap and a valve, wherein a supporting ring, a pressure ring and a sealing ring are arranged in the valve body, and a supporting ring, a pressure ring and a sealing ring are sheathed on the outer diameter of the valve rod. The utility model changes the traditional unidirectional sealing form, adopts V-shaped bidirectional-corresponding sealing ring sealing form, and has the advantages of flexible and convenient use, difficult damage and service life extension of the valve when achieving the goals of vacuum pumping and high temperature and high pressure resistance.
Description
The utility model relates to valve technology field, especially relates to a kind of Valve for gas cylinder that on high-purity gas steel cylinder and high-purity gas filling platform and high-purity gas cylinder manifold oxygen, hydrogen, nitrogen and inert gas is carried out filling and can vacuumize high temperature high voltage resistant, low temperature again.
Existing all gases valve exists the some shortcomings part in use.Such as can be high pressure resistant, can not vacuumize; Can vacuumize, open and close moment is excessive during use, operation inconvenience and be not durable, barrier film is easily cracked, connects the valve of formula structure as axle.At valve as cydariform seal with elastometic washer form, though can satisfy vacuumize, high voltage bearing usage requirement, but when vacuumizing, need heat 120 ° and dry by the fire bottle, the yielding damage of rubber ring this moment, and the valve with seal with elastometic washer uses high pressure oxygen easily to produce electrostatic fire, accidents caused, the influence safety in production.
The purpose of this utility model provide a kind of improved, overcome above-mentioned prior art defective, durable in use, easy and simple to handle, and can carry out filling and can vacuumize the Valve for gas cylinder of high temperature high voltage resistant, low temperature again oxygen, hydrogen, nitrogen and inert gas.
The purpose of this utility model is achieved in that a kind of Valve for gas cylinder, it mainly comprises handwheel, valve rod, valve body, pressure cap, valve, it is characterized in that: valve body is built-in with supporting ring, pressure ring, be equipped with seal ring between supporting ring, the pressure ring, the protruding angle of wedge of V font that a pair of correspondence is arranged on relative two planes of supporting ring, pressure ring, there is the socket wedge angle that can embed the protruding angle of wedge at the two ends of seal ring, are with supporting ring, pressure ring, seal ring on the external diameter of valve rod.
The task that the utility model proposed also can further be realized by following technical solution: the socket wedge angle at seal ring two ends is a pair of above, corresponding at least; The front end of valve has one to be 60 ° angle approximately.
The utility model is owing to adopt technique scheme, changed traditional one-way sealing form, adopt V seal ring seal form font, two-way correspondence, reached can vacuumize and can the high temperature high voltage resistant purpose in, also have and use flexibly lightly, not fragile, prolong the valve advantage in working life.
Below in conjunction with drawings and Examples the utility model is described in further detail:
Accompanying drawing is the utility model structural representation.
With reference to accompanying drawing, the utility model mainly comprises handwheel 1, valve rod 2, valve body 3, pressure cap 4, valve 5, valve body 1 is built-in with supporting ring 6, pressure ring 7, be equipped with seal ring 8 between supporting ring 6, the pressure ring 7, the protruding angle of wedge of V font of a pair of correspondence is arranged on relative two planes of supporting ring 6, pressure ring 7, and there is the socket wedge angle that can embed the protruding angle of wedge at the two ends of seal ring 8.
Embodiment: with reference to accompanying drawing.The utility model has been done some improvement on the sealing configuration of valve, adopt the protruding angle of wedge and the socket wedge angle engages and seals form of V font between supporting ring, pressure ring, the seal ring, seal ring is selected nonflammable teflon for use, so can be high temperature resistant, high pressure, low temperature and vacuumize, can be owing to high pressure draught yet pass through to produce static spark.The same prior art of opening/shutting mode that its specific operation step is a valve is not so give unnecessary details separately.
Claims (3)
1. Valve for gas cylinder, it mainly comprises handwheel, valve rod, valve body, pressure cap, valve, it is characterized in that: valve body is built-in with supporting ring, pressure ring, be equipped with seal ring between supporting ring, the pressure ring, the protruding angle of wedge of V font that a pair of correspondence is arranged on relative two planes of supporting ring, pressure ring, there is the socket wedge angle that can embed the protruding angle of wedge at the two ends of seal ring, are with supporting ring, pressure ring, seal ring on the external diameter of valve rod.
2. a kind of Valve for gas cylinder according to claim 1 is characterized in that: the socket wedge angle at seal ring two ends is a pair of above, corresponding at least.
3. a kind of Valve for gas cylinder according to claim 1 and 2 is characterized in that: the front end of valve has one to be 60 ° angle approximately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249803 CN2450450Y (en) | 2000-10-26 | 2000-10-26 | Valve for gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249803 CN2450450Y (en) | 2000-10-26 | 2000-10-26 | Valve for gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2450450Y true CN2450450Y (en) | 2001-09-26 |
Family
ID=33608167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249803 Expired - Fee Related CN2450450Y (en) | 2000-10-26 | 2000-10-26 | Valve for gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2450450Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419312C (en) * | 2005-08-31 | 2008-09-17 | 黄作兴 | Vacuum butterfly valve |
| CN102808978A (en) * | 2012-08-22 | 2012-12-05 | 贵州航天红光机械制造有限公司 | Inflation and deflation device for container |
| CN104832703A (en) * | 2015-05-04 | 2015-08-12 | 中国海洋石油总公司 | Two-way valve rod sealing structure of deep-sea high pressure valve and sealing anti-attrition test method |
| CN105333177A (en) * | 2015-11-25 | 2016-02-17 | 江苏华太电力仪表有限公司 | Explosion-proof needle valve |
| CN106523785A (en) * | 2016-11-25 | 2017-03-22 | 南通龙源电站阀门有限公司 | V-shaped structure valve rod sealing padding |
-
2000
- 2000-10-26 CN CN 00249803 patent/CN2450450Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419312C (en) * | 2005-08-31 | 2008-09-17 | 黄作兴 | Vacuum butterfly valve |
| CN102808978A (en) * | 2012-08-22 | 2012-12-05 | 贵州航天红光机械制造有限公司 | Inflation and deflation device for container |
| CN104832703A (en) * | 2015-05-04 | 2015-08-12 | 中国海洋石油总公司 | Two-way valve rod sealing structure of deep-sea high pressure valve and sealing anti-attrition test method |
| CN105333177A (en) * | 2015-11-25 | 2016-02-17 | 江苏华太电力仪表有限公司 | Explosion-proof needle valve |
| CN106523785A (en) * | 2016-11-25 | 2017-03-22 | 南通龙源电站阀门有限公司 | V-shaped structure valve rod sealing padding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |