CN102808965A - Embedded valve seat seal ring - Google Patents
Embedded valve seat seal ring Download PDFInfo
- Publication number
- CN102808965A CN102808965A CN2012102982975A CN201210298297A CN102808965A CN 102808965 A CN102808965 A CN 102808965A CN 2012102982975 A CN2012102982975 A CN 2012102982975A CN 201210298297 A CN201210298297 A CN 201210298297A CN 102808965 A CN102808965 A CN 102808965A
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- CN
- China
- Prior art keywords
- valve seat
- seal ring
- seat insert
- embedded
- bottom land
- 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.)
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Abstract
The invention discloses an embedded valve seat seal ring, wherein a plurality of protruding teeth-shaped faces are arranged at the slot bottom of a valve seat; vent holes are radially formed on the valve seat; a seal ring is embedded into the slot bottom of the valve seat and closely contacted with the teeth-shaped faces at the slot bottom, so as to realize sealing. The invention has the advantages that the valve seat seal ring is closely contacted with the protruding teeth-shaped faces at the slot bottom of a valve seat, so as to realize sealing; the valve seat seal ring is free from deformation; when the pressure and the temperature vary, as the protruding teeth-shaped faces at the slot bottom of a valve seat are embedded in and closely contacted with the bottom surface of the valve seat seal ring, the contact stress is free from loosening, and the fluid leakage is avoided.
Description
Technical field
The present invention relates to a kind of valve seat insert, particularly a kind of embedded valve seat insert.
Background technique
Ball valve progressively replaces traditional gate valve, stop valve, stopcock, butterfly valve, and constantly enlarges its application owing to having the all-pass footpath, opening and closing advantages such as rapid, that flow resistance is little.The material of ball valve is a polytetrafluoroethylene (PTFE), and this material has enough tensions and compressive strength, certain elastoplasticity, and good self lubricity, and superior corrosion resistance ability, very suitable to soft sealing material.Along with soft sealing materials such as reinforced TFE (RPTFE), nylon, PEEK appear again in the development of technology.Traditional compression type valve seat insert mainly is made up of valve seat, valve seat insert.Valve seat insert adopts soft sealing materials such as PTFE, RPTFE, nylon, PEEK, and valve seat insert is directly upwards processed several exhaust ports, through impacting force valve seat insert is pressed into valve seat.The valve seat insert bottom plane produces local plastic deformation under the effect of impacting force, and closely contacts the realization sealing with valve seat bottom land plane.But there are two problems in traditional compression type valve seat insert, the one, and valve seat and valve seat insert are plane sealing, the impacting force size that puts on valve seat insert depends on the roughness of valve seat bottom land plane and valve seat insert bottom plane; More restive, if impacting force is too little, valve seat and valve seat insert seal pressure are not enough; Fluid leaks from the contact position easily, if impacting force is too big, compressive stress is too big; Valve seat insert generation serious deformation, conquassation valve seat insert when serious.The 2nd, be stressed and Influence of Temperature, valve seat and valve seat insert contact stress are loose easily, and fluid leaks from the contact position easily.
Summary of the invention
Technical problem to be solved by this invention is that a kind of valve seat and the close-fitting embedded valve seat insert of valve seat insert will be provided.
In order to solve above technical problem, the invention provides a kind of embedded valve seat insert, the valve seat bottom land is provided with several outstanding toothed surface, and valve seat radially is provided with exhaust port, a seal ring inserted valve seat bottom land, and closely contact with the bottom land toothed surface and to realize sealing.
The some outstanding toothed surface of the bottom plane of valve seat insert inserted valve seat bottom land under the impacting force effect; Only need very little impacting force just can make the valve seat insert bottom plane produce very big contact stress in the process that embeds, and closely contact the realization sealing with the some outstanding toothed surface of valve seat bottom land.During pressure, temperature variation, some outstanding toothed surface of valve seat bottom land and valve seat insert bottom plane are because embedding closely cooperates, and contact stress can not take place loose, and fluid can not leak.
Superior effect of the present invention is:
1) valve seat insert closely contacts with the some outstanding toothed surface of valve seat bottom land and realizes sealing;
2) only need very little impacting force just can make the valve seat insert bottom plane produce very big contact stress in the process that valve seat insert embeds, valve seat insert can not be out of shape;
3) during pressure, temperature variation, some outstanding toothed surface of valve seat bottom land and valve seat insert bottom plane owing to embed closely cooperates, and contact stress can not take place loose, and fluid can not leak.
Description of drawings
Fig. 1 structural representation of the present invention;
Label declaration among the figure
1-valve seat; 2-valve seat insert.
Embodiment
See also shown in the accompanying drawing, the present invention is done further description.
As shown in Figure 1, the invention provides a kind of embedded valve seat insert, valve seat 1 bottom land is provided with several outstanding toothed surface, and valve seat 1 radially is provided with exhaust port, a seal ring 2 inserted valve seats 1 bottom land, and closely contact with the bottom land toothed surface and to realize sealing.
The some outstanding toothed surface of the bottom plane of valve seat insert 2 inserted valve seat 1 bottom land under the impacting force effect; Only need very little impacting force just can make valve seat insert 2 bottom planes produce very big contact stress in the process that embeds, and closely contact the realization sealing with the some outstanding toothed surface of valve seat 1 bottom land.During pressure, temperature variation, some outstanding toothed surface of valve seat 1 bottom land and valve seat insert 2 bottom planes are because embedding closely cooperates, and contact stress can not take place loose, and fluid can not leak.
Claims (1)
1. embedded valve seat insert is characterized in that: the valve seat bottom land is provided with several outstanding toothed surface, and valve seat radially is provided with exhaust port, a seal ring inserted valve seat bottom land, and closely contact with the bottom land toothed surface and to realize sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102982975A CN102808965A (en) | 2012-08-21 | 2012-08-21 | Embedded valve seat seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102982975A CN102808965A (en) | 2012-08-21 | 2012-08-21 | Embedded valve seat seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102808965A true CN102808965A (en) | 2012-12-05 |
Family
ID=47232769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102982975A Pending CN102808965A (en) | 2012-08-21 | 2012-08-21 | Embedded valve seat seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102808965A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6014664A (en) * | 1983-07-05 | 1985-01-25 | Kobe Steel Ltd | Valve |
| GB2143305A (en) * | 1983-06-16 | 1985-02-06 | Werner Hartmann | Sealing arrangement for a valve member |
| CN201034183Y (en) * | 2007-06-01 | 2008-03-12 | 苏州纽威阀门有限公司 | Soft-sealing standing ball valve seat structure |
| CN101919659A (en) * | 2010-06-21 | 2010-12-22 | 广东格兰仕集团有限公司 | Steam valve structure of electric cooker |
| CN201866315U (en) * | 2010-10-21 | 2011-06-15 | 圣博莱阀门有限公司 | Valve seat with dual-seal pair |
| CN202756662U (en) * | 2012-08-21 | 2013-02-27 | 上海开维喜阀门集团有限公司 | Embedded type seal ring of valve seat |
-
2012
- 2012-08-21 CN CN2012102982975A patent/CN102808965A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2143305A (en) * | 1983-06-16 | 1985-02-06 | Werner Hartmann | Sealing arrangement for a valve member |
| JPS6014664A (en) * | 1983-07-05 | 1985-01-25 | Kobe Steel Ltd | Valve |
| CN201034183Y (en) * | 2007-06-01 | 2008-03-12 | 苏州纽威阀门有限公司 | Soft-sealing standing ball valve seat structure |
| CN101919659A (en) * | 2010-06-21 | 2010-12-22 | 广东格兰仕集团有限公司 | Steam valve structure of electric cooker |
| CN201866315U (en) * | 2010-10-21 | 2011-06-15 | 圣博莱阀门有限公司 | Valve seat with dual-seal pair |
| CN202756662U (en) * | 2012-08-21 | 2013-02-27 | 上海开维喜阀门集团有限公司 | Embedded type seal ring of valve seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |