CN102359608A - Hard sealing double eccentric butterfly valve for S-shaped elastic double O-shaped metal sealing ring - Google Patents
Hard sealing double eccentric butterfly valve for S-shaped elastic double O-shaped metal sealing ring Download PDFInfo
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- CN102359608A CN102359608A CN2011102629870A CN201110262987A CN102359608A CN 102359608 A CN102359608 A CN 102359608A CN 2011102629870 A CN2011102629870 A CN 2011102629870A CN 201110262987 A CN201110262987 A CN 201110262987A CN 102359608 A CN102359608 A CN 102359608A
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Abstract
The invention discloses a hard sealing double eccentric butterfly valve for an S-shaped elastic double O-shaped metal sealing ring, which comprises a double eccentric butterfly plate, a valve body and a valve rod and is characterized in that the S-shaped elastic double O-shaped metal sealing ring is placed between the double eccentric butterfly plate and the valve body, and a regulation mechanism consisting of a pressing ring, a control ring, a positioning plate, a regulating screw bolt and a retainer ring is arranged at the sealing ring part. The S-shaped elastic double O-shaped metal sealing ring structure is adopted, so the problem of complicated sealing structures or single static sealing design structures caused by the dynamic and static sealing coupling is effectively solved, and the sealing structure is simplified. The sealing ring part is provided with a regulating structure, the elastic deformation quantity and the deformation direction of large and small elastic O-shaped metal sealing rings can be simultaneously regulated, the elastic deformation quantity and the elastic force can be effectively provided, the reliability of the sealing performance is improved, the deformation caused by the heat expansion and cold contraction of materials can be obviously and perfectly compensated particularly in high and low temperature application occasions with sharp temperature change, and the internal sealing performance of the butterfly valve is ensured.
Description
Technical field
The present invention relates to a kind of butterfly valve of pilot line medium circulation, relate in particular to the two O shape metal o-ring hard sealing double eccentric butterfly valves of a kind of S shape elasticity.
Background technique
Butterfly valve is a kind of valve that is widely used in being used in the industry pipe-line systems such as oil, chemical industry, boats and ships, nuclear power station the circulation of pilot line medium; Wherein elastic metallic hard sealing double eccentric butterfly valve has and reduces unnecessary butterfly plate and the excessive compression between seal ring, scraping degree, the low advantage such as moment that opens and closes preferably because of having good anti-low high-temperature behavior and two eccentric structure, is applied to special operation conditions such as high temperature.Existing elastic metallic hard sealing structure has mainly adopted elastic seal rings such as U-shaped metal o-ring, band pressurising hollow O shape eyelet, like the metal hard-sealing wafer type butterfly valve of disclosed a kind of U-shaped metal hard-sealing butterfly valve valve seat of Chinese patent CN2567408Y and the disclosed band pressurized O shape ring of Chinese patent CN2080596U.There are following shortcoming in existing U-shaped or hollow O shape metal o-ring: 1. between butterfly plate and seal ring between fixed blocks such as motive sealing and seal ring and valve body the static seal acting in conjunction in same elastic seal ring; There is certain coupled relation in the two and can not regulates separately, and perhaps static seal partly needs design again; 2. the elastic seal ring decrement is unadjustable; 3. can not be applied to the ultralow temperature operating mode preferably; The elasticity of metal o-ring change or material cold short; Or gas need be provided with air feeder separately in the inflation metallic O ring, and this device can not adapt to preferably that bad phenomenon such as contingent variation of blanketing gas physical property causes seal failure under the ultralow temperature operating mode.
Summary of the invention
To the defective that exists in the existing technology, the present invention aims to provide a kind ofly can be suitable for high worst cold case simultaneously, integrate static and dynamic sealing and mutual noninterference and have the two O shape metal o-ring hard sealing double eccentric butterfly valves of a kind of S shape elasticity of regulating elastic metallic seal ring elastic deformation amount and controlled deformation direction function.
To achieve these goals; The present invention adopts following technological scheme: the two O shape metal o-ring hard sealing double eccentric butterfly valves of a kind of S shape elasticity; Comprise two eccentric butterfly plates, valve body, valve rod; Be characterized in that between two eccentric butterfly plates and valve body, be equipped with the two O shape metal o-rings of a kind of integral type S shape elasticity, the sealing circle is fused through S shape outer ring metal by large and small elasticity O shape metal o-ring and forms; Be equipped with the controlling mechanism of pressure ring, control ring, positioning plate, adjusting bolt, back-up ring composition at the two O shape metal o-ring places of described S shape elasticity, adjust the amount of deformation and the deformation direction of large and small elasticity O shape metal o-ring.
Owing to adopted the two O shape metallic seal coil structures of S shape elasticity, effectively solve the sealing configuration of the complicacy that the static and dynamic sealing coupling brings or designed the static seal structure problem separately, simplify the sealing configuration of knowing clearly; Design pressure ring, regulated the regulation structure that parts such as bolt, control ring are formed; Adjust large and small elasticity O shape metal o-ring elastic deformation amount and deformation direction thereof simultaneously; Elastic deformation amount and elastic force can be provided effectively; Improved the reliability of sealability, particularly temperature high cryogenic applications jumpy can be significantly the compensative material distortion of expanding with heat and contract with cold and causing preferably, guaranteed the interior sealability of butterfly valve.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a sealed structural representation among the present invention;
Fig. 3 is the two O shape metal o-ring structural representations of S shape elasticity among the present invention.
Among Fig. 1, Fig. 2: 1 pair of eccentric butterfly plate, the two O shape metal o-rings of 2 S shape elasticity, 3 pressure rings, 4 positioning plates, 5 are regulated bolt, 6 back-up rings, 7 control rings, 8 valve bodies, 9 valve rods; Among Fig. 3: 21 outer ring metals, 22 internal layers, 23 springs.
Embodiment
By Fig. 1, shown in Figure 2; The two O shape metal o-ring hard sealing double eccentric butterfly valves of a kind of S shape elasticity; Comprise two eccentric butterfly plate 1, valve body 8, valve rod 9; Be characterized in that be equipped with the two O shape metal o-rings 2 of a kind of integral type S shape elasticity at two eccentric butterfly plates 1 and 9 of valve bodies, the sealing circle is fused through S shape outer ring metal by large and small elasticity O shape metal o-ring and forms; Be equipped with the controlling mechanism of pressure ring 3, control ring 7, positioning plate 4, adjusting bolt 5, back-up ring 6 compositions at two O shape metal o-ring 2 places of described S shape elasticity, adjust the amount of deformation and the deformation direction of large and small elasticity O shape metal o-ring.
By shown in Figure 3; The two O shape metal o-rings 2 of described S shape elasticity are fused through S shape outer ring metal 21 by large and small elasticity O shape metal o-ring and form, and described large and small elasticity O shape metal o-ring is equipped with spring 23, internal layer 22 and S shape outer ring metal 21 from the inside to the outside respectively.The two O shape metal o-rings of S shape elasticity are because its inside has spring 23 to support; And rationally selecting for use through outer ring metal 21, internal layer 22 materials; The material of being selected for use like internal layer 22 and S shape outer ring metal 21 is respectively 304L stainless steel and fine copper; Can make this metal o-ring in certain deformation band, keep elasticity reliably, make the two O shape metal o-ring hard sealing double eccentric butterfly valves of S shape elasticity under multiple extreme operating conditions such as temperature high low temperature jumpy, keep sealability in the height.
Little O shape circle in the two O shape metal o-rings 2 of said S shape elasticity is through pressure ring 3 and valve body 8 effects; Realize the static seal function; Big O shape circle is realized motive sealing function between butterfly plate and seal ring, and static and dynamic sealing spare is integrated in the two O shape metal o-rings 2 of S shape elasticity independent action again, mutual noninterference.
Motive sealing implementation procedure: big O shape circle, pressure ring 3, the positioning plate 4 in two eccentric butterfly plate 1, the two O shape metal o-rings 2 of S shape elasticity, regulate bolt 5, back-up ring 6, control ring 7, valve body (8) and form movable sealing structure, adjust the elastic deformation amount that the big O shape in the two O shape metal o-rings 2 of S shape elasticity encloses and realize the sealing between butterfly plate 1 and seal ring through regulating position that bolt 5 regulates pressure rings 3; Wherein the big O shape in pressure ring 3, control ring 7 and the valve body 8 control elasticity O shape metal o-rings 2 is enclosed flexible deformation direction, big O shape circle is out of shape towards the butterfly plate direction realizes that seal ring contacts with the reliable of butterfly plate, guarantees sealability.
The static seal implementation procedure: the little O shape circle in the two O shape metal o-rings 2 of S shape elasticity, pressure ring 3, regulate bolt 5, valve body 8 is formed static seal structures, through regulating that position that bolt 5 regulates pressure rings 3 adjusts that the resiliently deformable of the little O shape circle in the two O shape metal o-rings 2 of S shape elasticity realizes that little O shape in the two O shape metal o-rings 2 of S shape elasticity is enclosed and the static seal of 9 of valve bodies.
Claims (3)
1. two O shape metal o-ring hard sealing double eccentric butterfly valves of a S shape elasticity, comprise two eccentric butterfly plates (1),
Valve body (8), valve rod (9); It is characterized in that; Between two eccentric butterfly plates (1) and valve body (9), be equipped with the two O shape metal o-rings (2) of a kind of integral type S shape elasticity; The sealing circle is fused through S shape outer ring metal by large and small elasticity O shape metal o-ring and forms; The controlling mechanism of locate to be equipped with pressure ring (3), control ring (7), positioning plate (4) at the two O shape metal o-rings (2) of described S shape elasticity, regulate bolt (5), back-up ring (6) being formed is adjusted the amount of deformation and the deformation direction of large and small elasticity O shape metal o-ring.
2. the two O shape metal o-ring hard sealing double eccentric butterfly valves of S shape elasticity according to claim 1; It is characterized in that; The two O shape metal o-rings (2) of described S shape elasticity are fused through S shape outer ring metal (21) by large and small elasticity O shape metal o-ring and form, and described large and small elasticity O shape metal o-ring is equipped with spring (23), internal layer (22) and S shape outer ring metal (21) from the inside to the outside respectively.
3. the two O shape metal o-ring hard sealing double eccentric butterfly valves of S shape elasticity according to claim 2 is characterized in that the material that internal layer (22) and S shape outer ring metal (21) are selected for use is respectively 304L stainless steel and fine copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102629870A CN102359608A (en) | 2011-09-07 | 2011-09-07 | Hard sealing double eccentric butterfly valve for S-shaped elastic double O-shaped metal sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102629870A CN102359608A (en) | 2011-09-07 | 2011-09-07 | Hard sealing double eccentric butterfly valve for S-shaped elastic double O-shaped metal sealing ring |
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| CN102359608A true CN102359608A (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102629870A Pending CN102359608A (en) | 2011-09-07 | 2011-09-07 | Hard sealing double eccentric butterfly valve for S-shaped elastic double O-shaped metal sealing ring |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661399A (en) * | 2012-05-18 | 2012-09-12 | 温州蓝天管件阀门有限公司 | Tri-eccentric butterfly valve |
| CN102748485A (en) * | 2012-06-30 | 2012-10-24 | 常州市汇丰船舶附件制造有限公司 | Seal butterfly valve with detachable ring |
| CN103644309A (en) * | 2013-11-20 | 2014-03-19 | 江苏亿阀集团有限公司 | Low temperature resistant butterfly valve |
| CN105443785A (en) * | 2016-02-01 | 2016-03-30 | 无锡智能自控工程股份有限公司 | Energy-increased elastic sealing valve structure and double-eccentric butterfly valve applying same |
| CN105443777A (en) * | 2016-02-01 | 2016-03-30 | 无锡智能自控工程股份有限公司 | Memory alloy sealed valve seat structure and dual-centrifugal butterfly valve with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415170A (en) * | 1981-01-13 | 1983-11-15 | Applications Mecaniques Et Robinetterie Industrielle A.M.R.I. | Double toric sealing ring |
| CN2076193U (en) * | 1990-10-23 | 1991-05-01 | 天津市塘沽阀门厂 | Double-ecentric butterfly valve with metal rigid seal |
| US5249774A (en) * | 1992-01-15 | 1993-10-05 | Alsthom Velan | Valve having a metal seal, in particular a butterfly valve |
| CN2835730Y (en) * | 2005-07-26 | 2006-11-08 | 石家庄阀门一厂股份有限公司 | Metal composite seal ring |
| CN101084391A (en) * | 2004-12-20 | 2007-12-05 | 笹仓机械工程有限公司 | Metal touch type butterfly valve |
| CN202302002U (en) * | 2011-09-07 | 2012-07-04 | 中国船舶重工集团公司第七0四研究所 | Hard seal double-eccentric butterfly valve of S-shaped elastic double-O-shaped metal seal ring |
-
2011
- 2011-09-07 CN CN2011102629870A patent/CN102359608A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415170A (en) * | 1981-01-13 | 1983-11-15 | Applications Mecaniques Et Robinetterie Industrielle A.M.R.I. | Double toric sealing ring |
| CN2076193U (en) * | 1990-10-23 | 1991-05-01 | 天津市塘沽阀门厂 | Double-ecentric butterfly valve with metal rigid seal |
| US5249774A (en) * | 1992-01-15 | 1993-10-05 | Alsthom Velan | Valve having a metal seal, in particular a butterfly valve |
| CN101084391A (en) * | 2004-12-20 | 2007-12-05 | 笹仓机械工程有限公司 | Metal touch type butterfly valve |
| CN2835730Y (en) * | 2005-07-26 | 2006-11-08 | 石家庄阀门一厂股份有限公司 | Metal composite seal ring |
| CN202302002U (en) * | 2011-09-07 | 2012-07-04 | 中国船舶重工集团公司第七0四研究所 | Hard seal double-eccentric butterfly valve of S-shaped elastic double-O-shaped metal seal ring |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661399A (en) * | 2012-05-18 | 2012-09-12 | 温州蓝天管件阀门有限公司 | Tri-eccentric butterfly valve |
| CN102748485A (en) * | 2012-06-30 | 2012-10-24 | 常州市汇丰船舶附件制造有限公司 | Seal butterfly valve with detachable ring |
| CN102748485B (en) * | 2012-06-30 | 2017-08-25 | 常州市汇丰船舶附件制造有限公司 | Removable ring sealed butterfly valve |
| CN103644309A (en) * | 2013-11-20 | 2014-03-19 | 江苏亿阀集团有限公司 | Low temperature resistant butterfly valve |
| CN103644309B (en) * | 2013-11-20 | 2017-01-18 | 江苏亿阀集团有限公司 | Low temperature resistant butterfly valve |
| CN105443785A (en) * | 2016-02-01 | 2016-03-30 | 无锡智能自控工程股份有限公司 | Energy-increased elastic sealing valve structure and double-eccentric butterfly valve applying same |
| CN105443777A (en) * | 2016-02-01 | 2016-03-30 | 无锡智能自控工程股份有限公司 | Memory alloy sealed valve seat structure and dual-centrifugal butterfly valve with same |
| CN105443785B (en) * | 2016-02-01 | 2018-01-16 | 无锡智能自控工程股份有限公司 | Energization type elastic packing valve seat construction and apply its double eccentric butterfly valve |
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Application publication date: 20120222 |