CN201447483U - Gas relief valve - Google Patents
Gas relief valve Download PDFInfo
- Publication number
- CN201447483U CN201447483U CN2009200429350U CN200920042935U CN201447483U CN 201447483 U CN201447483 U CN 201447483U CN 2009200429350 U CN2009200429350 U CN 2009200429350U CN 200920042935 U CN200920042935 U CN 200920042935U CN 201447483 U CN201447483 U CN 201447483U
- Authority
- CN
- China
- Prior art keywords
- valve
- cover
- gas relief
- valve body
- valve gap
- 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
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- Lift Valve (AREA)
- Safety Valves (AREA)
Abstract
The utility model provides a gas relief valve which comprises a valve body and a valve cover, a hard alloy is arranged at the contact position of the cover body and a conical surface of the valve cover by surfacing welding, a lifting hole is formed on the valve cover is connected with a winding machine, rubber seal rings are further arranged on flange planes of the valve cover and the valve body, more than three guiding shafts are arranged on the flange plane of the valve body, the guiding shafts penetrate through the flange plane of the valve cover, the length of the guiding shafts is larger than the stroke of a valve, and a sliding bearing is further arranged between the valve cover and the guiding shafts. The gas relief valve has the beneficial effects that the gas relief valve is provided with a guiding mechanism, thereby realizing high movement repeatability precision, flexible opening and closing, even force on a sealing surface, reliable sealing and lower requirements for processing and assembly.
Description
Technical field
The utility model relates to a kind of valve system, especially a kind of gas bleeding valve that uses in blast furnace gas system of iron and steel enterprise.
Background technology
The present gas bleeding valve that uses in blast furnace gas system of iron and steel enterprise, the general hard sealing structure that adopts, promptly at valve gap and valve seal place pile-up welding hard alloy, the action of valve is drawn by windlass, because valve gap repeatable accuracy when knee-action is low, incident small skew causes valve seal not tight, gas leak and personal injury accident takes place.
Summary of the invention
Low in order to overcome existing coal gas diffusion valve events repeatable accuracy, seal unreliable firmly and cause gas leak, easily accidents caused deficiency, the utility model provides a kind of gas bleeding valve.
The technical scheme that its technical problem that solves the utility model adopts is a kind of gas bleeding valve, comprise valve body, valve gap, valve body and valve gap conical surface contact position pile-up welding hard alloy are equipped with erection opening on the valve gap, be connected with windlass, on valve gap and the valve flange plane rubber seal be housed also.
Three above axis of guides also are housed on the Flange Plane of valve body, and the axis of guide passes the Flange Plane of valve gap, and the length of the axis of guide also is equipped with sliding surface bearing greater than the stroke of valve between the valve gap and the axis of guide.
The beneficial effects of the utility model are to be provided with guiding mechanism, and motion repeatable accuracy height opens and closes flexibly, and trim is stressed evenly, and sealing is reliable, and lower to the requirement of process and assemble.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural map of present embodiment;
Among the figure: 1. the axis of guide; 2. sliding surface bearing; 3. valve gap; 4. rubber seal; 5. Wimet; 6. erection opening; 7. valve body.
Embodiment
As shown in Figure 1, a kind of gas bleeding valve comprises valve body 7, valve gap 3, and valve body 7 and valve gap 3 conical surface contact position pile-up welding hard alloys 5 are equipped with erection opening 6 on the valve gap 3, is connected with windlass, on valve gap 3 and valve body 7 Flange Plane rubber seal 4 is housed also.Three above axis of guides 1 also are housed on the Flange Plane of valve body 7, and the axis of guide 1 passes the Flange Plane of valve gap 3, and the length of the axis of guide 1 also is equipped with sliding surface bearing 2 greater than the stroke of valve between the valve gap 3 and the axis of guide 1.Trim adopts the double seal pattern of metal hard-sealing and rubber sealing auxiliary seal, sealing is reliable, and in valve gap 3 and valve body 7 seal process, at first valve gap 3 and valve body 7 are by rubber seal 4 soft contacts, and then contact with Wimet 5, play the effect of double seal.
Claims (3)
1. a gas bleeding valve comprises valve body, valve gap, and valve body and valve gap conical surface contact position pile-up welding hard alloy are equipped with erection opening on the valve gap, be connected with windlass, it is characterized in that: on described valve gap and the valve flange plane rubber seal is housed also.
2. gas bleeding valve according to claim 1 is characterized in that: three above axis of guides also are housed on the Flange Plane of described valve body, and the axis of guide passes the Flange Plane of valve gap, and the length of the axis of guide is greater than the stroke of valve.
3. gas bleeding valve according to claim 1 and 2 is characterized in that: sliding surface bearing also is housed between the described valve gap and the axis of guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200429350U CN201447483U (en) | 2009-06-29 | 2009-06-29 | Gas relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200429350U CN201447483U (en) | 2009-06-29 | 2009-06-29 | Gas relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201447483U true CN201447483U (en) | 2010-05-05 |
Family
ID=42552199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200429350U Expired - Fee Related CN201447483U (en) | 2009-06-29 | 2009-06-29 | Gas relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201447483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736813A (en) * | 2016-04-25 | 2016-07-06 | 中冶华天南京工程技术有限公司 | Counterweight-free pressure-adjustable relief valve with non-turnover structures for furnace top of blast furnace |
-
2009
- 2009-06-29 CN CN2009200429350U patent/CN201447483U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736813A (en) * | 2016-04-25 | 2016-07-06 | 中冶华天南京工程技术有限公司 | Counterweight-free pressure-adjustable relief valve with non-turnover structures for furnace top of blast furnace |
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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: 20100505 Termination date: 20170629 |