CN2476685Y - Three-eccentric butterfly valve with double-butterfly-plate - Google Patents
Three-eccentric butterfly valve with double-butterfly-plate Download PDFInfo
- Publication number
- CN2476685Y CN2476685Y CN 00249547 CN00249547U CN2476685Y CN 2476685 Y CN2476685 Y CN 2476685Y CN 00249547 CN00249547 CN 00249547 CN 00249547 U CN00249547 U CN 00249547U CN 2476685 Y CN2476685 Y CN 2476685Y
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- CN
- China
- Prior art keywords
- butterfly plate
- butterfly
- valve
- double
- valve seat
- 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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Abstract
The utility model relates to a triple eccentric butterfly valve, consisting of a valve body, a valve rod, a valve seat and a butterfly plate, which is characterized in that the butterfly plate and the valve seat respectively consist of a double butterfly plate and a double valve seat, the double butterfly plate and a double valve seat are matched with each other, forming a two-layer sealing structure which has the functions of two-way seal and dual seal. The utility model has a reliable sealing performance, and is suitable for being used in the operating condition whose medium has a bidirectional flow and is fixed and used in the situations which have high requirement to the sealing performance.
Description
The utility model relates to a kind of butterfly valve, particularly about a kind of three eccentric butterfly valve.
Butterfly valve is widely used on the pipeline of various industrial occasions by force because of simple in structure, easy to use, cheap, applicability.Particularly three eccentric butterfly valve because of having the surface of revolution sealed construction, is compared with plane extruding type butterfly valve, has improved working pressure greatly, has reduced open and close torque.But the butterfly valve of the various types of domestic production at present and use all is one-way sealing and individual layer sealing surface structure, can only be applicable on the medium pipeline of one-way flow to use, and sealability is unreliable.
The purpose of this utility model is the deficiency that exists at prior art, design a kind of have two way sealed and double-layer seal face structure, can be applicable on the medium pipeline of two-way flow to use, and reliable three eccentric pairs of butterfly plate butterfly valves of sealability.
The technological scheme that realizes the utility model purpose comprises valve body, valve rod, valve seat, butterfly plate, Sealing and assembling set, butterfly plate is two butterfly plate structures of symmetry, valve rod passes fixedlys connected with butterfly plate in the middle of the double butterfly plate, and valve seat is to have and the cooperatively interact symmetric double valve seat construction of curved surface of pair butterfly plate sealing surfaces.
The utility model is owing to adopt two butterfly plates and bivalve seat to constitute the double seal assistant structure, realized the two way sealed function, this product can be installed on the medium pipeline of two-way flow to be used, and in use, double seal assistant has played the double seal effect, its sealability is more reliable, can accomplish the requirement of zero leakage, is applicable to the operating mode use that sealing requirements is higher.
Fig. 1 is a structure sectional view of the present utility model.
Now describe structure of the present utility model in conjunction with the accompanying drawings and embodiments in detail.
Structure of the present utility model comprises valve body 1, valve rod 3, valve seat, butterfly plate 6, Sealing and assembling set, butterfly plate 6 is two butterfly plate structures of symmetry, valve rod 3 passes in the middle of the double butterfly plate, and fixedlys connected with butterfly plate 6, and valve seat is to have and the cooperatively interact bivalve stand structure of curved surface of two butterfly plate sealing surfaces.The sealing configuration that valve seat constituted that each butterfly plate matches with it is equivalent to three eccentric sealed structure butterfly valves of prior art.Valve seat constitutes for sealing gasket 7 and the pressure ring 8 that is fitted in the valve body 1 by end cap 2.Valve rod 3 is fixedlyed connected with pin 5 by flat key 4 with butterfly plate 6.
Claims (2)
1, a kind of three eccentric two butterfly plate butterfly valves, comprise valve body (1), valve rod (3), valve seat, butterfly plate (6), Sealing and assembling set, it is characterized in that the two butterfly plate structures of butterfly plate (6) for symmetry, valve rod (3) passes in the middle of the double butterfly plate, fixedly connected with butterfly plate, valve seat is to have and the cooperatively interact bivalve stand structure of curved surface of two butterfly plate sealing surfaces.
2, according to claim 1, described three eccentric two butterfly plate butterfly valves is characterized in that described valve seat constitutes for sealing gasket (7) and the pressure ring (8) that is fitted in by gland (2) in the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249547 CN2476685Y (en) | 2000-10-08 | 2000-10-08 | Three-eccentric butterfly valve with double-butterfly-plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249547 CN2476685Y (en) | 2000-10-08 | 2000-10-08 | Three-eccentric butterfly valve with double-butterfly-plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2476685Y true CN2476685Y (en) | 2002-02-13 |
Family
ID=33607970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249547 Expired - Fee Related CN2476685Y (en) | 2000-10-08 | 2000-10-08 | Three-eccentric butterfly valve with double-butterfly-plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2476685Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131454A (en) * | 2018-02-12 | 2018-06-08 | 无锡智能自控工程股份有限公司 | Three eccentric two-way sealed butterfly valve |
| CN111482079A (en) * | 2019-01-28 | 2020-08-04 | 中国石油化工股份有限公司 | Catalytic regeneration flue gas denitration, dedusting and desulfurization system and depressurization method |
-
2000
- 2000-10-08 CN CN 00249547 patent/CN2476685Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131454A (en) * | 2018-02-12 | 2018-06-08 | 无锡智能自控工程股份有限公司 | Three eccentric two-way sealed butterfly valve |
| CN111482079A (en) * | 2019-01-28 | 2020-08-04 | 中国石油化工股份有限公司 | Catalytic regeneration flue gas denitration, dedusting and desulfurization system and depressurization method |
| CN111482079B (en) * | 2019-01-28 | 2021-12-03 | 中国石油化工股份有限公司 | Catalytic regeneration flue gas denitration, dedusting and desulfurization system and depressurization method |
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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 |