CN2908934Y - Sealing structure for two eccentric butterfly valve - Google Patents
Sealing structure for two eccentric butterfly valve Download PDFInfo
- Publication number
- CN2908934Y CN2908934Y CN 200620042015 CN200620042015U CN2908934Y CN 2908934 Y CN2908934 Y CN 2908934Y CN 200620042015 CN200620042015 CN 200620042015 CN 200620042015 U CN200620042015 U CN 200620042015U CN 2908934 Y CN2908934 Y CN 2908934Y
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- seal ring
- groove
- steel seal
- valve body
- 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
Abstract
The utility model relates to a seal structure used for double eccentric butterfly valves and is characterized in that a groove is provided in the valve body with a stainless steel seal ring inside. When the utility model is used, the stainless steel seal ring is positioned with the groove, which plays a role both in guide and spacing. The stainless steel seal ring in the groove is compacted into a shape with corner angles under pressure of the valve body so that sealing surface of the valve body can fit that of a butterfly plate best when both are closed. Integration of the stainless steel seal ring with the groove reduces relative movement between the groove and the stainless steel seal ring to the maximum extent and improves airtightness, rotproofness and service life of valves.
Description
Technical field:
The utility model relates to the technical field of valve, specifically a kind of two core shift butterfly valve seal structures that are used for.
Background technique:
The seal ring of two core shift butterfly valves in the market and valve body are the form that adopts linking body structure basically, the shortcoming of this fixedly connected existence is, because seal ring is that cast iron or spheroidal graphite are cast, very easily in Korrosionsmedium and clear water, produce oxidation reaction, certainly will cause the ring wear of valve, the life-span that influence is used.
Summary of the invention:
The purpose of this utility model is to provide a kind of improved two core shift butterfly valve seal structures that are used for, and it can overcome the some shortcomings that seal ring is more easy to wear in the prior art, working life is short.
To achieve these goals, the technical solution of the utility model is: a kind of sealing configuration that is used for two core shift butterfly valves, and it mainly comprises valve body, is located at trim ring in the valve body and the butterfly plate that matches with trim ring, it is characterized in that: be provided with a groove in the valve body, be provided with a stainless steel seal ring in the groove.
Stainless steel seal ring of the present utility model positions with groove during use, groove plays dual parts guiding and spacing, the stainless steel seal ring is squeezed into certain corner angle owing to be subjected to the pressure of valve body in groove, the sealing surface that makes valve body sealing surface and butterfly plate finds best fit when closing.Stainless steel seal ring and groove are fused to have reduced relatively moving of groove and stainless steel seal ring to greatest extent for one, has improved sealing, rotproofness and the working life of valve.
Description of drawings:
Fig. 1 is the local enlarged diagram of the utility model stainless steel seal ring and valve body
Fig. 2 is a user mode reference drawing of the present utility model
Embodiment:
The utility model will be further described below in conjunction with drawings and Examples.
The utility model mainly comprises valve body 1, is located at trim ring 4 in the valve body and the butterfly plate 5 that matches with trim ring, and its difference with the prior art is: be provided with a groove in the valve body, be provided with a stainless steel seal ring 2 in the groove.Stainless steel seal ring and groove form interference fit, and the thickness of stainless steel seal ring is 2-6cm.Butterfly plate is provided with a rubber seal 3, and rubber seal is vertical mutually with the stainless steel seal ring.
In force, butterfly plate 5 is connected with rear trunnion 13 with drive axle 20, valve body is connected with rear end cover 10, the stainless steel seal ring is fixedly installed in the groove of valve body, the stainless steel seal ring is squeezed into certain corner angle in valve body, the sealing surface that makes valve body sealing surface and butterfly plate finds best fit when closing.Stainless steel seal ring and groove are fused to have reduced relatively moving of groove and stainless steel seal ring to greatest extent for one, has improved sealing, rotproofness and the working life of valve.
Claims (3)
1, a kind of sealing configuration that is used for two core shift butterfly valves, it mainly comprises valve body, is located at trim ring in the valve body and the butterfly plate that matches with trim ring, it is characterized in that: be provided with a groove in the valve body, be provided with a stainless steel seal ring in the groove.
2, a kind of sealing configuration that is used for two core shift butterfly valves according to claim 1 is characterized in that: stainless steel seal ring and groove form interference fit, and the thickness of stainless steel seal ring is 2-6cm.
3, a kind of sealing configuration that is used for two core shift butterfly valves according to claim 1, it is characterized in that: butterfly plate is provided with a rubber seal, and rubber seal is vertical mutually with the stainless steel seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042015 CN2908934Y (en) | 2006-05-23 | 2006-05-23 | Sealing structure for two eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042015 CN2908934Y (en) | 2006-05-23 | 2006-05-23 | Sealing structure for two eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2908934Y true CN2908934Y (en) | 2007-06-06 |
Family
ID=38128145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620042015 Expired - Fee Related CN2908934Y (en) | 2006-05-23 | 2006-05-23 | Sealing structure for two eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2908934Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114640A (en) * | 2015-09-11 | 2015-12-02 | 中国神华能源股份有限公司 | Butterfly valve and engineering machine |
-
2006
- 2006-05-23 CN CN 200620042015 patent/CN2908934Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114640A (en) * | 2015-09-11 | 2015-12-02 | 中国神华能源股份有限公司 | Butterfly valve and engineering machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 |