CN2378581Y - Full-closed gas flat plate gate valve - Google Patents
Full-closed gas flat plate gate valve Download PDFInfo
- Publication number
- CN2378581Y CN2378581Y CN 98225296 CN98225296U CN2378581Y CN 2378581 Y CN2378581 Y CN 2378581Y CN 98225296 CN98225296 CN 98225296 CN 98225296 U CN98225296 U CN 98225296U CN 2378581 Y CN2378581 Y CN 2378581Y
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- sealing
- spring
- sealing surface
- 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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- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a full-closed gas flat plate gate valve. A valve body 1 is provided with two sealing base plates 3 which are respectively provided with a group of springs 5 through spring pin shafts 6; under the action of spring force, the floating sealing base plates 3 is always tightly contacted with a gate plate during the whole moving stroke of the gate plate 4, medium in a pipeline is prevented from exchanging in a valve chamber, fly ash and extraneous constituents can not enter the valve chamber to corrade and accumulate on a sealing surface or components of a valve rod, etc., and the sealing performance is enhanced; mineral oil for lubricating and protecting the sealing surface is filled in the valve, the service life of the valve can be effectively extended, and the workload for the maintenance of the valve is reduced; the valve can be driven by a motor, and can be operated by hands.
Description
The utility model relates to a kind of gate valve, especially a kind of hermetically sealed, combustion gas plate valve.
The Gas-combustion valve of present domestic use (comprising plate valve), in the valve opening and closing process, the combustion gas medium can enter in the valve cavity, sealing surface or valve rod etc. are exposed in the combustion gas medium, be subject to the combustion gas erosion medium resistance or gathered by dirts such as tar and influence the valve seal performance, the phenomenon that generation is not opened, fitted badly reduces valve working life, is difficult to adapt to the needs of gas industry.
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of combustion gas operating mode that is full of dust, tar etc. that is suitable for is provided, and sealing is reliable, and is easy to operate, the hermetic combustion gas plate valve that the combustion gas medium in the pipeline can not exchange in valve cavity.
The utility model is realized the technological scheme of above-mentioned purpose: two unsteady sealing seat boards are installed on valve body, by axis pin of the spring one group of spring is installed on it, under the spring force effect, the sealing seat board that floats nestles up flashboard all the time when flashboard moves, and valve internal is also loaded mineral oil.
Because the utility model has adopted the sealing seat board that floats, in the valve opening or the whole stroke of closing, the sealing seat board is under the effect of spring, all the time be adjacent to flashboard, flashboard is motion seamlessly in the sealing seat board, avoided condensation products such as impurity, dust and tar to enter in the valve body chamber, accumulated on valve rod or the sealing surface.In the position of valve open, all sealing surfaces all are covered with mutually, are not subjected to the influence of flowing medium, and the direction of media flow can be any.Because adopted this structure, can load mineral oil in the valve, can supply with the lubricated of moving elements such as flashboard and valve rod, reduce practical operation power, and can be in sealing and the surface forms protective film, the protection sealing surface is not gathered by dirt or corrodes.Because main position such as valve inner and valve rod, sealing surface is protected; close or the valve of opening state can both be opened neatly or safety, cut off densely even be in for a long time; can prolong the working life of valve effectively, reduce the workload of valve daily maintenance.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the sectional view of the plan view of known plate valve.
Fig. 2 is the sectional view of the utility model plan view.
Shown in Figure 1 is the plate valve that the front background technique is partly mentioned, and this plate valve mainly is made up of valve body, valve seat, valve gap, handwheel etc.Open or close in the process at flashboard, the combustion gas medium of pipeline enters in the valve cavity by the through hole on the flashboard, and sealing surface and valve rod etc. is subject to the combustion gas erosion medium resistance or is gathered by dirts such as tar, influences valve opening.
The utility model shown in Figure 2 mainly is made up of valve body 1, O RunddichtringO 2, sealing seat board 3, flashboard 4, spring 5, axis pin of the spring 6, Stem Mut 7, valve rod 8, valve gap 9, drive unit 10 etc.
One group of spring 5 is installed on the sealing seat board 3 by axis pin of the spring 6, sealing seat board 3 is installed in the seat hole in the valve body 1, after spring 5 compressions, the sealing seat board can move in the valve block hole, and the O RunddichtringO 2 on the sealing seat board makes pipeline internal medium can not enter body cavity; Flashboard 4 is installed between the two sealing seat boards 3, and valve rod 8 one ends link to each other with flashboard 4 by Stem Mut 7, and valve rod 8 the other ends are installed in the seat hole of valve gap 9.
When the drive unit 10 on being installed in valve gap 9 (manual or electronic) drives valve rod 8 rotations, Stem Mut 7 drives flashboard 4 motion in the two sealing seat boards 3 that float, sealing seat board 3 is under the effect of spring 5, all the time be adjacent to flashboard 4, even flashboard is in the half-open state that closes, the dust of valve body passing hole medium, tar etc. also can't enter in the valve body chamber.
Because during valve opening and closing, two sealing seat boards 3 are adjacent to flashboard 4 all the time, so can also load mineral oil in the valve, mineral oil can not enter pipeline, can be moving elements such as valve rod 8, flashboard 4 and provides lubricated, reduces friction, and form protective film on sealing surface.Protection valve rod and sealing surface are not corroded by dirt or gather.
Claims (1)
1; a kind of hermetically sealed combustion gas plate valve; it is by valve body (1); flashboard (4); valve rod (7); Stem Mut (8); valve gap (9); drive unit compositions such as (10); it is characterized in that: two sealing seat boards (3) also are housed on the valve body (1); by axis pin of the spring (6) one group of spring (5) is installed on it; under the spring force effect, the sealing seat board (3) that floats is adjacent to flashboard all the time when flashboard (4) is mobile, prevent that pipeline medium from exchanging in valve cavity; make impurity; tar etc. can not enter the interior erosion of valve cavity and accumulate on the valve inner pieces such as sealing surface or valve rod, and valve internal is also loaded for lubricated; the mineral oil of protection sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98225296 CN2378581Y (en) | 1998-10-08 | 1998-10-08 | Full-closed gas flat plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98225296 CN2378581Y (en) | 1998-10-08 | 1998-10-08 | Full-closed gas flat plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2378581Y true CN2378581Y (en) | 2000-05-17 |
Family
ID=33976016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98225296 Expired - Fee Related CN2378581Y (en) | 1998-10-08 | 1998-10-08 | Full-closed gas flat plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2378581Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102333979A (en) * | 2009-03-06 | 2012-01-25 | 泰科阀门控制有限合伙公司 | Gate valve with lubricated secondary seal |
| CN109058490A (en) * | 2018-09-10 | 2018-12-21 | 铜陵爱阀科技有限公司 | A kind of Intelligent anti-leakage Gas-combustion valve |
| CN109340428A (en) * | 2018-11-29 | 2019-02-15 | 攀钢集团成都钛材有限公司江油分公司 | A kind of cap of high-vacuum baffle valve with dual-seal performance |
-
1998
- 1998-10-08 CN CN 98225296 patent/CN2378581Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102333979A (en) * | 2009-03-06 | 2012-01-25 | 泰科阀门控制有限合伙公司 | Gate valve with lubricated secondary seal |
| CN102333979B (en) * | 2009-03-06 | 2015-02-25 | 泰科阀门控制有限合伙公司 | Gate valve with lubricated secondary seal |
| CN104613188A (en) * | 2009-03-06 | 2015-05-13 | 滨特尔阀门控制美国有限合伙公司 | Gate valve with lubricated secondary seal |
| CN109058490A (en) * | 2018-09-10 | 2018-12-21 | 铜陵爱阀科技有限公司 | A kind of Intelligent anti-leakage Gas-combustion valve |
| CN109340428A (en) * | 2018-11-29 | 2019-02-15 | 攀钢集团成都钛材有限公司江油分公司 | A kind of cap of high-vacuum baffle valve with dual-seal performance |
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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 |