CN101592228A - Double eccentric high-sealing butterfly valve - Google Patents
Double eccentric high-sealing butterfly valve Download PDFInfo
- Publication number
- CN101592228A CN101592228A CNA2008100166302A CN200810016630A CN101592228A CN 101592228 A CN101592228 A CN 101592228A CN A2008100166302 A CNA2008100166302 A CN A2008100166302A CN 200810016630 A CN200810016630 A CN 200810016630A CN 101592228 A CN101592228 A CN 101592228A
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- CN
- China
- Prior art keywords
- valve
- valve seat
- gland
- double eccentric
- 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.)
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Abstract
The invention provides a kind of double eccentric high-sealing butterfly valve, it is characterized in that valve seat (4) is a combined type, promptly in valve seat (4), wrap up an elastic force O type circle (11), valve seat (4) is made with polytetrafluoroethylmaterial material, elastic force O type circle (11) is made with fluorine rubber, valve seat (4) is provided with valve seat gland (5), relative valve body locating tooth (12) and the valve seat gland locating slot (13) of being provided with respectively on valve body (1) and the valve seat gland (5), and valve body locating tooth (12) and valve seat gland locating slot (13) are meshing with each other, adopt bolt (14) that valve seat gland (5) is fixed on the valve body (1), valve shaft (6) is gone up the corresponding cotter slot (15) that is provided with valve plate (2), utilize pin (16) that valve plate (2) and valve shaft (6) are reinforced together, sealing force therefore of the present invention strengthens, more superior sealability is provided, prolonged working life, made the accurate closure of valve plate energy and keep stable sealing force.
Description
Technical field
The present invention relates to valve, specifically a kind of two eccentric high-performance butterfly valve that is applicable on liquid mediums such as high temperature, high pressure, deep-etching or the gas medium delivery line.
Background technique
Double eccentric butterfly valve drives the rotation of valve plate by the rotation of valve shaft when work, make the outer spherical surface of valve plate press to valve seat gradually, play seal action, therefore can produce very big frictional force at valve plate and valve base chamber, make the moment of torsion of valve shaft become big, often cause gap between valve shaft and valve plate to become big and become flexible; Again because valve plate and the frequent friction of valve base chamber, the sealing surface wear of valve seat, sealability decline has had a strong impact on working life of valve body.In addition, the Sealing of existing butterfly valve generally is a rubber on the market, this butterfly valve in use because the characteristic of rubber, its Applicable media scope is little, and valve plate rubber electrodes in rotary course is easy to wear, working life is low.
Summary of the invention
The purpose of this invention is to provide a kind of valve shaft and cooperate the good double eccentric high-sealing butterfly valve of secure seal performance with valve plate, realize that technological scheme of the present invention is: the present invention includes valve body, valve plate, bearing housing, valve seat, the valve seat gland, valve shaft, V-shaped seal ring, support, differential and key, it is characterized in that valve seat is a combined type, promptly in valve seat, wrap up an elastic force O type circle, valve body is made with polytetrafluoroethylmaterial material, elastic force O type circle is made with fluorine rubber, valve seat is provided with the valve seat gland, the relative location teeth groove that is provided with respectively on valve seat gland and the valve body has guaranteed the firmly accurate location of valve seat.The valve seat gland adopts and is bolted on the valve body, has guaranteed that the power that tightens up of valve seat is even.The corresponding cotter slot that is provided with on valve shaft and the valve plate utilizes pin that valve plate and valve shaft are reinforced and is in the same place, and pin is cylindrical and have an inclined-plane.The carrying capacity of valve shaft increases, and makes accurately closure of valve plate, guarantees to close reliably, and keeps stable sealing force.
Valve seat is made of the valve body of teflon and the 0 type elastic ring that is wrapped among the present invention, makes it sealing force and strengthens, and more superior sealability is provided, prolonged working life, owing to set up pin, load forces increases, and makes the accurate closure of valve plate energy and keeps stable sealing force.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of valve seat among the present invention;
Fig. 3 be among the present invention valve seat by the dress schematic representation;
Fig. 4 is the structural representation of pin among the present invention;
Fig. 5 is that the A of pin feature schematic representation among the present invention is to view.
Among the figure, 1, valve body, 2, valve plate, 3, bearing housing, 4, valve seat, 5, the valve seat gland, 6, valve shaft, 7, V-shaped seal ring, 8, support, 9, differential, 10, key, 11, elastic force O type circle, 12, valve body locating tooth, 13, valve seat gland locating slot, 14, bolt, 15, cotter slot, 16, pin, 17, the inclined-plane.
Embodiment
With reference to accompanying drawing, technological scheme of the present invention is described further, the present invention includes valve body 1, valve plate 2, bearing housing 3, valve seat 4, valve seat gland 5, valve shaft 6, V-shaped seal ring 7, support 8, differential 9 and key 10, it is characterized in that valve seat 4 is combined type, promptly in valve seat 4, wrap up an elastic force O type circle 11, valve seat 4 usefulness polytetrafluoroethylmaterial materials are made, elastic force O type circle 11 usefulness fluorine rubber are made, valve seat 4 is provided with valve seat gland 5, relative valve body locating tooth 12 and the valve seat gland locating slot 13 of being provided with respectively on valve body 1 and the valve seat gland 5, and valve body locating tooth 12 and valve seat gland locating slot 13 are meshing with each other, and have guaranteed firmly accurately locating of valve seat 4.Valve seat gland 5 adopts bolt 14 to be fixed on the valve body 1, has guaranteed that the power that tightens up of valve seat 4 is even.The corresponding cotter slot 15 that is provided with on valve shaft 6 and the valve plate 2 utilizes pin 16 that valve plate 2 is reinforced with valve shaft 6 and is in the same place, and pin 16 is cylindrical and have an inclined-plane 17.The carrying capacity of valve shaft 6 increases, and makes accurately closure of valve plate 2, guarantees to close reliably, and keeps stable sealing force.
Claims (5)
1, a kind of double eccentric high-sealing butterfly valve, include valve body (1), valve plate (2), bearing housing (3), valve seat (4), valve seat gland (5), valve shaft (6), V-shaped seal ring (7), support (8), differential (9) and key (10), it is characterized in that valve seat (4) is a combined type, i.e. parcel one elastic force O type circle (11) in valve seat (4).
2, according to the said double eccentric high-sealing butterfly valve of claim 1, it is characterized in that valve seat (4) makes with polytetrafluoroethylmaterial material, elastic force O type circle (11) is made with fluorine rubber.
3, according to the said double eccentric high-sealing butterfly valve of claim 1, it is characterized in that valve seat (4) is provided with valve seat gland (5), relative valve body locating tooth (12) and the valve seat gland locating slot (13) of being provided with respectively on valve body (1) and the valve seat gland (5), and valve body locating tooth (12) and valve seat gland locating slot (13) are meshing with each other, and adopt bolt (14) that valve seat gland (5) is fixed on the valve body (1).
4, according to claim 1,2 or 3 said double eccentric high-sealing butterfly valves, it is characterized in that the upward corresponding cotter slot (15) that is provided with of valve shaft (6) and valve plate (2), utilize pin (16) that valve plate (2) and valve shaft (6) are reinforced together.
5,, it is characterized in that pin (16) is cylindrical and have inclined-plane (17) according to the said double eccentric high-sealing butterfly valve of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100166302A CN101592228B (en) | 2008-05-30 | 2008-05-30 | Double eccentric high-sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100166302A CN101592228B (en) | 2008-05-30 | 2008-05-30 | Double eccentric high-sealing butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101592228A true CN101592228A (en) | 2009-12-02 |
| CN101592228B CN101592228B (en) | 2011-11-09 |
Family
ID=41407032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100166302A Ceased CN101592228B (en) | 2008-05-30 | 2008-05-30 | Double eccentric high-sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101592228B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469492A (en) * | 2018-06-07 | 2021-03-09 | 金属塑料有限责任公司 | Closure device for a barrier system, in particular an isolator, filter unit, and barrier system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206878Y (en) * | 1994-12-07 | 1995-09-06 | 查恩玉 | Double-eccentric fluorine-plastic sealed butterfly bamper |
| CN2369038Y (en) * | 1999-03-29 | 2000-03-15 | 大连船用阀门厂 | Dual accentric corrosionproof butterfly gate |
| CN2495863Y (en) * | 2001-08-03 | 2002-06-19 | 唐思勋 | Double hard and sealing type butterfly valve |
| CN201202820Y (en) * | 2008-05-30 | 2009-03-04 | 宁津美华工业有限公司 | Double-eccentric center high seal butterfly valve |
-
2008
- 2008-05-30 CN CN2008100166302A patent/CN101592228B/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469492A (en) * | 2018-06-07 | 2021-03-09 | 金属塑料有限责任公司 | Closure device for a barrier system, in particular an isolator, filter unit, and barrier system |
| CN112469492B (en) * | 2018-06-07 | 2022-06-24 | 金属塑料有限责任公司 | Filter unit for a barrier system, in particular an isolator, and barrier system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101592228B (en) | 2011-11-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20150722 Decision number of declaring invalidation: 26501 Granted publication date: 20111109 |