CN2830816Y - Double eccentric metallic sealing butterfly valve - Google Patents
Double eccentric metallic sealing butterfly valve Download PDFInfo
- Publication number
- CN2830816Y CN2830816Y CN 200520031360 CN200520031360U CN2830816Y CN 2830816 Y CN2830816 Y CN 2830816Y CN 200520031360 CN200520031360 CN 200520031360 CN 200520031360 U CN200520031360 U CN 200520031360U CN 2830816 Y CN2830816 Y CN 2830816Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- sealing ring
- metallic sealing
- metallic
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 33
- 238000012856 packing Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a double eccentric metallic sealing butterfly valve which comprises a valve body, a valve plate and a metallic sealing ring, wherein the valve plate is arranged on a valve stem in an inner cavity of the valve body, and the metallic sealing ring is arranged on the sealing surface of the valve body. Elastic sealing rings are separately arranged on the right side and the left side of the metallic sealing ring positioned on the valve body. The utility model has the advantages that the elastic sealing rings are separately arranged on the right side and the left side of the metallic sealing ring positioned on the valve body, the elastic sealing rings displace along the axial direction of the valve body under the effect of pressure to compensate when the valve stem is stressed to elastically deform, and thus, the leakage problem caused by the elastic deformation of the valve stem is effectively solved nicely. Because the elastic sealing rings are arranged on both the right side and the left side of the metallic sealing ring, the elastic sealing rings can compensate no matter when the valve stem receives positive force or reverse force to elastically deform, and the positive sealing effect and the reverse sealing effect of the valve body are greatly enhanced.
Description
Technical field
The utility model relates to two eccentric metal seal butterfly valves.
Background technique
Two eccentric metal seal butterfly valves are widely used on the pipeline.Use at present and mainly show as: behind valve closing,, often cause the resiliently deformable of valve rod and the poorly sealed leakage phenomenon that occurs owing to the existence of pipeline internal medium to the valve plate active force in the existing deficiency of two eccentric metal seal butterfly valves on the pipeline.Especially working as valve plate is subjected to the effect of opposite force more like this.
The model utility content
The utility model purpose is to provide a kind of two eccentric metal seal butterfly valves of forward and reverse good sealing effect.
For achieving the above object, the utility model can be taked following technical proposals:
Described in the utility model pair of eccentric metal seal butterfly valve, it comprises valve body, be arranged on the valve plate on the valve rod in the described body cavity, and be arranged on the metallic packing ring on the valve body sealing surface, the left and right sides face that is positioned at described metallic packing ring on valve body is respectively arranged with elastic sealing ring.
The metallic packing ring that is arranged on the described valve body sealing surface contacts with tangent plane with described sealing surface of valve plate.
Advantage of the present utility model is that the left and right sides face that is positioned at described metallic packing ring on valve body is respectively arranged with elastic sealing ring, like this when the stressed generation resiliently deformable of valve rod, described elastic sealing ring will axially be subjected to displacement with compensation along valve body under pressure, thereby solve the leakage problem that the resiliently deformable because of valve rod causes well.And owing to all be provided with elastic sealing ring at the left and right sides of metallic packing ring face, when therefore no matter valve rod was subjected to the effect generation resiliently deformable of forward or opposite force, elastic sealing ring can both be recompensed, and has improved the forward and reverse sealing effect of valve body greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A portion zoomed-in view of Fig. 1.
Embodiment
As shown in the figure, described in the utility model pair of eccentric metal seal butterfly valve, it comprises valve body 1, be arranged on the valve plate 3 on the valve rod 2 in described valve body 1 inner chamber, and being arranged on metallic packing ring 4 on valve body 1 sealing surface, the left and right sides face that is positioned at described metallic packing ring 4 on valve body 1 is respectively arranged with elastic sealing ring 5.For making valve plate 3 more smooth when opening and closing, the metallic packing ring 4 on valve body 1 sealing surface contacts in the tangent plane mode with valve plate 3 sealing surfaces.
Claims (2)
1, a kind of pair of eccentric metal seal butterfly valve, it comprises valve body (1), be arranged on the valve plate (3) on the valve rod (2) in described valve body (1) inner chamber, and be arranged on metallic packing ring (4) on valve body (1) sealing surface, it is characterized in that: the left and right sides face that is positioned at described metallic packing ring (4) on valve body (1) is respectively arranged with elastic sealing ring (5).
2, according to claim 1 pair of eccentric metal seal butterfly valve is characterized in that: the metallic packing ring (4) that is arranged on described valve body (1) sealing surface contacts with tangent plane with described valve plate (3) sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031360 CN2830816Y (en) | 2005-07-27 | 2005-07-27 | Double eccentric metallic sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031360 CN2830816Y (en) | 2005-07-27 | 2005-07-27 | Double eccentric metallic sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830816Y true CN2830816Y (en) | 2006-10-25 |
Family
ID=37135742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031360 Expired - Fee Related CN2830816Y (en) | 2005-07-27 | 2005-07-27 | Double eccentric metallic sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830816Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296679A (en) * | 2019-07-31 | 2019-10-01 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of device and monitoring method having the long-term deformation monitoring ability of valve rod |
-
2005
- 2005-07-27 CN CN 200520031360 patent/CN2830816Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296679A (en) * | 2019-07-31 | 2019-10-01 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of device and monitoring method having the long-term deformation monitoring ability of valve rod |
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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: 20061025 |