CN205013730U - Combination disk seat that plate valve is stand wear and tear - Google Patents
Combination disk seat that plate valve is stand wear and tear Download PDFInfo
- Publication number
- CN205013730U CN205013730U CN201520774241.1U CN201520774241U CN205013730U CN 205013730 U CN205013730 U CN 205013730U CN 201520774241 U CN201520774241 U CN 201520774241U CN 205013730 U CN205013730 U CN 205013730U
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- disk seat
- valve body
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Abstract
The utility model relates to a combination disk seat that plate valve is stand wear and tear, including valve body, valve gap, disk seat, flashboard, valve rod and hand wheel, the disk seat comprises outer disk seat and inside seal ring, outside in sealed the one end of disk seat coaxial inlaying be equipped with an inside seal and encircle, inlaying on the sealed face that outer disk seat and sealed inner ring meet and being equipped with flashboard sealing rubber O shape circle, the horizontal axis of disk seat inlays between to terminal surface and valve body and is equipped with a spring outside, build -up welding system has a hard alloy layer on sealed endocyclic sealed face. The utility model discloses utilize O shape rubber seal elasticity good, toughness is good, and the easy advantage that compensates behind the fish tail is overcome the interior hourglass that results in because of RPTFE soft seal ring fish tail and is taken place, adopts the integrated configuration in addition, and it is workable that the slot is installed to O shape circle, has improved the sealing performance and the reliability of valve.
Description
Technical field
The utility model belongs to valve field, the wear-resistant stack valve seat of especially a kind of plate valve.
Background technique
At present, the sealing configuration of plate valve valve seat is that steel firmly seals and adds one RPTFE soft seal ring, reaches the zero leakage sealing under gas medium operating mode.But, there is shortcoming in prior art, when valve be used in high containing sand rock gas or middle height containing granular hard object medium time, valve is opening and closing in process, if soft seal is scratched, especially after Long-Time Service, the elasticity of RPTFE seal ring is deteriorated, and seal ring lacks compensation ability, can cause the interior leakage of valve.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, there is provided that a kind of structure is simple, design science, good stability, the reliable plate valve of sealing is wear-resistant stack valve seat, go for the high mixture condition containing sand rock gas and particle hard foreign material
The utility model solves its technical problem and takes following technological scheme to realize:
The wear-resistant stack valve seat of a kind of plate valve, comprise valve body, valve gap, valve seat, flashboard, valve rod and handwheel, be shaped with the medium runner of a lateral direction penetrating in valve body, valve body upper end is sealed and installed with valve gap; In the middle part of valve body, be vertically provided with a valve rod, the valve rod lower end in valve body is fixed with a flashboard; In the valve body of the both sides of flashboard, be symmetrically installed with a valve seat respectively, valve seat seals with gate panel slide and contacts; This valve rod upper end passes valve gap, and Driven by Coaxial is provided with a handwheel, it is characterized in that: valve seat is made up of outer seat and inner seal ring, in sealing surface one end of outer seat, be coaxially embedded with an inner seal ring; The sealing surface that outer seat connects with sealing inner ring is embedded with a ram seal rubber o-ring, between the horizontal axis end face and valve body of outer seat, is embedded with a spring; On the sealing surface of sealing inner ring, built-up welding is shaped with a hard alloy layer.
And valve body and valve gap are coaxially connected and are sealed by rubber o-ring.
And, be shaped with pollutant exhaust hole at body base and a blowdown plug is installed.
And, between sealing inner ring and outer seat, a valve base chamber O shape is installed and encloses.
And the outer weekly interval of outer seat is embedded with the outer seat O shape circle that twice radial direction is installed.
Advantage of the present utility model and good effect are:
1, the sealing inner ring pile-up welding hard alloy layer on valve seat and O shape rubber parts form firmly seal, soft seal double seal, wear-resistant, sealability zero leakage.
2, seal inner ring and outer seat combined, the installation groove of formation O-ring seals, easily processes, good economy performance.
3, the utility model utilizes O shape rubber seal good springiness, good toughness, the advantage easily compensated after scratching, overcome because of RPTFE soft seal ring scratch cause in leak occur, and employing composite structure, O shape circle is installed groove and is easily processed, and improves sealability and the reliability of valve.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is the A portion partial enlarged drawing in Fig. 1.
Reference character: 1. valve body 2. blowdown plug 3. outer seat 4. flashboard 5. valve gap 6. valve rod 7 handwheel 8. outer seat O shape encloses 9. spring 10. valve base chamber O shape circle 11. sealing inner ring 12. hard alloy layer 13. ram seal rubber o-rings
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
The wear-resistant stack valve seat of a kind of plate valve, comprise valve body 1, valve gap 5, valve seat 3, flashboard 4, valve rod 6 and handwheel 7, be described with direction shown in accompanying drawing 1, be shaped with the medium runner of a lateral direction penetrating in valve body, valve body upper end is sealed and installed with valve gap; In the middle part of valve body, be vertically provided with a valve rod, the valve rod lower end in valve body is fixed with a flashboard; In the valve body of the both sides of flashboard, be symmetrically installed with a valve seat respectively, valve seat seals with gate panel slide and contacts; This valve rod upper end passes valve gap, and Driven by Coaxial is provided with a handwheel, and this handwheel is elevated by worm gear structure actuate valve stem, thus controls flashboard open and close.
Valve body and valve gap are coaxially connected and are sealed by rubber o-ring.
Be shaped with pollutant exhaust hole at body base and a blowdown plug 2 is installed, being convenient to the impurity retained in exits valve body.
Innovative point of the present utility model is:
Valve seat is made up of outer seat and inner seal ring, in sealing surface one end of outer seat, be coaxially embedded with an inner seal ring;
The outer weekly interval of outer seat is embedded with the outer seat O shape circle 8 that twice radial direction is installed, and ensures the sealing of outer seat and valve body;
Between sealing inner ring and outer seat, a valve base chamber O shape is installed and encloses 10, ensure sealing mutual between outer seat and sealing inner ring;
The sealing surface that the outer seat of valve seat connects with sealing inner ring is shaped with a sealed groove, ram seal rubber o-ring 13 is embedded with in sealing groove, between the horizontal axis end face and valve body of outer seat, be embedded with a spring 9, this spring provides pretightening force to make valve seat and flashboard keep close contact;
Sealing inner ring sealing surface on built-up welding be shaped with a hard alloy layer 12, this hard alloy layer and ram seal O shape enclose 13 form firmly seal, soft seal double seal.
During valve closing, the ram seal rubber o-ring on sealing surface of seat under spring force, is first close on ram seal face, and along with the increase of pressure; Then, along with flashboard declines, hard alloy layer contacts with ram seal face, and form hard sealing together, the soft seal formed with ram seal rubber o-ring forms double seal, reaches zero leakage.
When in valve open process, flashboard moves up, and the impurity on ram seal face, dirt etc. are wiped off by the hard alloy layer on two valve seats, ensure that ram seal rubber o-ring is not scratched, seal pressure simultaneously due to caulking gum O shape circle is little, reduces the operating torque of valve.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (5)
1. the wear-resistant stack valve seat of plate valve, comprises valve body, valve gap, valve seat, flashboard, valve rod and handwheel, is shaped with the medium runner of a lateral direction penetrating in valve body, and valve body upper end is sealed and installed with valve gap; In the middle part of valve body, be vertically provided with a valve rod, the valve rod lower end in valve body is fixed with a flashboard; In the valve body of the both sides of flashboard, be symmetrically installed with a valve seat respectively, valve seat seals with gate panel slide and contacts; This valve rod upper end passes valve gap, and Driven by Coaxial is provided with a handwheel, it is characterized in that: valve seat is made up of outer seat and inner seal ring, in sealing surface one end of outer seat, be coaxially embedded with an inner seal ring; The sealing surface that outer seat connects with sealing inner ring is embedded with a ram seal rubber o-ring, between the horizontal axis end face and valve body of outer seat, is embedded with a spring; On the sealing surface of sealing inner ring, built-up welding is shaped with a hard alloy layer.
2. the wear-resistant stack valve seat of plate valve according to claim 1, is characterized in that: valve body and valve gap are coaxially connected and are sealed by rubber o-ring.
3. the wear-resistant stack valve seat of plate valve according to claim 1, is characterized in that: be shaped with pollutant exhaust hole at body base and be provided with a blowdown plug.
4. the wear-resistant stack valve seat of plate valve according to claim 1, is characterized in that: be provided with a valve base chamber O shape between sealing inner ring and outer seat and enclose.
5. the wear-resistant stack valve seat of plate valve according to claim 1, is characterized in that: the outer weekly interval of outer seat is embedded with the outer seat O shape circle that twice radial direction is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520774241.1U CN205013730U (en) | 2015-10-08 | 2015-10-08 | Combination disk seat that plate valve is stand wear and tear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520774241.1U CN205013730U (en) | 2015-10-08 | 2015-10-08 | Combination disk seat that plate valve is stand wear and tear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013730U true CN205013730U (en) | 2016-02-03 |
Family
ID=55212334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520774241.1U Active CN205013730U (en) | 2015-10-08 | 2015-10-08 | Combination disk seat that plate valve is stand wear and tear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799539A (en) * | 2018-08-21 | 2018-11-13 | 江苏亿阀股份有限公司 | A kind of orbit ball valve with spiral valve rod |
-
2015
- 2015-10-08 CN CN201520774241.1U patent/CN205013730U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799539A (en) * | 2018-08-21 | 2018-11-13 | 江苏亿阀股份有限公司 | A kind of orbit ball valve with spiral valve rod |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |