CN104455486A - Bi-directional sealing high-performance butterfly valve - Google Patents
Bi-directional sealing high-performance butterfly valve Download PDFInfo
- Publication number
- CN104455486A CN104455486A CN201410697907.8A CN201410697907A CN104455486A CN 104455486 A CN104455486 A CN 104455486A CN 201410697907 A CN201410697907 A CN 201410697907A CN 104455486 A CN104455486 A CN 104455486A
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- CN
- China
- Prior art keywords
- seal ring
- valve
- sealing
- valve body
- edge
- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
Abstract
The invention provides a bi-directional sealing high-performance butterfly valve which comprises a valve body, a valve plate and a valve rod. A sealing base is arranged on the outer periphery of the valve plate. A boss is arranged on the inner periphery of the valve body. A sealing ring is arranged on one side of the boss and shaped like the Arabic number seven. The short edge of the sealing ring is arranged in the mode of facing the boss. The left side of the short edge is attached to the inner wall of the valve body. The long edge of the sealing ring is an arc edge matched with the sealing base. A pressing plate with the inverted-T-shaped cross section is arranged on the lower side of the short edge of the sealing ring. The vertical edge of the pressing plate makes contact with the short edge of the sealing ring. The left section of the transverse edge of the pressing plate is arranged on the step of the end of the valve body and fixedly connected with the step of the end of the valve body through a pressing bolt. An adjusting ring is arranged between the right section of the transverse edge of the pressing plate and the short edge of the sealing ring. The adjusting ring makes contact with the transverse edge of the pressing plate and is fixedly connected with the transverse edge of the pressing plate through a tightening bolt. An inner hole in the upper section of the adjusting ring is a conical hole decreasing gradually from top to bottom. The inner wall of the conical hole is matched with the lower end of the arc edge of the sealing ring. It can be ensured that the butterfly plate hardly rubs with the sealing ring in the opening process, the sealing effect is good, and the service life is long.
Description
Technical field
The present invention relates to a kind of butterfly valve of pipeline, especially relate to a kind of two way sealed high-performance butterfly valve.
Background technique
In known butterfly valve technology, its seal form many employings sealing configuration, sealing material is rubber, teflon etc.Due to the restriction of structure characteristic, be not suitable with high temperature resistant, high pressure and corrosion-resistant, the industry such as to resistance to wear.
There is a kind of sealing configuration in addition, an elastic metal o-ring be located on valve interior wall is adopted to seal with the sealing seat be arranged on butterfly plate excircle, this structure, not only because manufacture and assembly error can cause sealing to fall flat, and in use owing to being subject to temperature and the impact by medium, be easy to lose efficacy, and be not easy to repair, the continuation of necessary renewal part guarantee butterfly valve uses, this not only can cause the problem of leakage, and causes the increase of cost of production.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of two way sealed high-performance butterfly valve,
Can ensure that the reliability sealed also can improve the life-span of sealing configuration.
The present invention in order to solve the problems of the technologies described above adopted technological scheme is: a kind of two way sealed high-performance butterfly valve, comprise valve body, valve plate and valve rod, described valve plate is rotatably arranged in valve body by valve rod, the sealing seat that shape is piece is provided with at the excircle of valve plate, the inner circumference of valve body is provided with a boss, the side that boss is positioned at sealing seat miner diameter end is provided with a seal ring, the sectional shape of described seal ring is " 7 " font, arrange towards boss on the upside of the minor face of seal ring, the left side of minor face and the inwall of valve body fit, the long limit of seal ring is the arc-shaped side protruded to the right, this arc-shaped side matches with described sealing seat, the platen that cross section is inverted T-shaped is provided with in the downside of seal ring minor face, the stile of described platen contacts with left section of the minor face of seal ring, the horizontal edge of platen is positioned at a section of seal ring with outer week side and is arranged on the step of valve body inner bore end, and be fixedly connected with by hold-down bolt, platen horizontal edge is provided with to adjust and encloses between one section of ring inner hole side and right section of the minor face of seal ring, the lower end of adjustment circle contacts with the horizontal edge of platen, and the upper-lower position of adjustment circle is carried out by tightening bolt, the endoporus of described adjustment circle epimere is the cone shape hole diminished gradually from top to bottom, described cone shape hole inwall contacts with the arc-shaped side lower end of described seal ring and coordinates, and adjustment circle upper end and and right section of the minor face of seal ring between be provided with gap.
Further, between described boss and seal ring, a sealing gasket is also provided with.
Further, the one side that the cone shape hole inwall that the lower end, " 7 " font long limit of described seal ring and adjusting is enclosed combines is the conical surface consistent with cone shape hole inner wall shape.
Described seal ring adopts metal material, and described sealing seat adopts the metal material higher than the hardness of seal ring.
Beneficial effect:
1, according to the present invention, seal ring is designed to " 7 " font, the left side of the minor face of " 7 " font contacts with valve interior wall, and compress with platen, the another side of " 7 " font is arc-shaped, ball face sealing seated connection on itself and butterfly plate touches, an adjustment circle is increased between seal ring and platen, upper-lower position by adjustment adjustment circle makes the sealing effect between " 7 " font arc-shaped side of seal ring and sealing seat reach best, thus eliminate the harmful effect that machining manufacture and assembly error bring sealing effect, ensure that butterfly plate sealing seat when opening almost does not rub with seal ring, only in the moment of closing, the sealing strip on sealing seat is fitted like a glove and reach the effect of forced seal, and in follow-up using process, due to the supporting effect of adjustment circle, pure metal hard-sealing is sealed between seal ring and sealing seat, not only can ensure the reliability of sealing effect, and once there are wearing and tearing, can also pass through adjusting the position adjustment of circle again to reach optimum sealing effect.
2, adjustment circle regulates further by taper-face contact with seal ring, can realize the effect precisely steadily regulated.
3, the present invention is enclosed the effect of the use that can realize under the different operating modes such as high temperature, low temperature, high pressure that combines by platen and adjustment, and does not worry that various environmental factor can cause deformation and failure, has sealing superior, the advantage that using scope is wide.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the side sectional view of Fig. 1.
Fig. 3 is A place enlarged view in Fig. 1.
In figure, 1, valve body, 101, boss, 2, platen, 3, hold-down bolt, 4, seal ring, 5, sealing gasket, 6, tighten bolt, 8, butterfly plate, 9, sealing seat, 10, valve rod, 11, pin, 12, adjustment circle.
Embodiment
Below in conjunction with the drawings and specific embodiments, concrete detailed description is further done to the present invention.
Conveniently describe, the shape of " 7 " as herein described and up and down all with shape shown in accompanying drawing 1 and accompanying drawing 3 and consistent up and down.
A kind of two way sealed high-performance butterfly valve, comprise valve body 1, valve plate 8 and valve rod 10, described valve plate 8 is rotatably arranged in valve body 1 by valve rod 10.Particularly, valve rod 10 is fixedly mounted in the fitting seat being arranged at valve plate 8 side by pin 11, the two ends of valve rod 10 are arranged on valve body 1 by bearing.
What adopt in this specific embodiment is single valve bar, and in practical application, valve plate 8 also can adopt two valve rods to be arranged on structural type in valve body 1.
The sealing seat 9 that shape is piece is provided with at the excircle of valve plate 8, the inner circumference of valve body is provided with a boss 101, the side of boss 101 is the conical surface, (namely boss 101 is positioned at the side of sealing seat 9 miner diameter end to the opposite side of boss 101, the miner diameter end herein said refers to, when valve plate 8 is in closed condition, the miner diameter end as the sealing seat 9 of piece) be plane, be provided with a seal ring 4 in the plane side of boss.
The sectional shape of described seal ring 4 is " 7 " font, arranges on the upside of the minor face of the seal ring 4 of " 7 " font towards boss 101, and the left side of minor face and the inwall of valve body 1 fit, to realize the sealing between seal ring 4 and valve body 1; The long limit of seal ring 4 is the arc-shaped side protruded to the right, this arc-shaped side matches with described sealing seat 9, thus the sealing realized between seal ring 4 and valve plate, the platen 2 that cross section is inverted T-shaped is provided with in the downside of seal ring 4 minor face, left section of stile and the minor face of seal ring 4 of described platen 2 contacts, the horizontal edge of platen 2 is positioned at a section of seal ring 4 outer circumferential sides and is arranged on the step of valve body inner bore end, and is fixedly connected with by hold-down bolt 3; Platen 2 horizontal edge is provided with and adjusts circle 12 between one section of seal ring 4 endoporus side and right section of the minor face of seal ring 4, and the lower end of adjustment circle 12 contacts with the horizontal edge of platen 2, and adjusts the upper-lower position of circle 12 by tightening bolt 6.
The endoporus of described adjustment circle 12 epimere is the cone shape hole diminished gradually from top to bottom, and described cone shape hole inwall contacts with the arc-shaped side lower end of described seal ring 4 and coordinates, and adjustment circle 12 upper end and and right section of the minor face of seal ring 4 between be provided with gap.
The one side that lower end, " 7 " font long limit and the cone shape hole inwall of adjustment circle 12 of described seal ring 4 combine is preferably the conical surface consistent with cone shape hole inner wall shape.
Inner ring design (i.e. the long limit of " 7 " font) of seal ring 4 is the arc-shaped side protruded to sealing seat 9 side, when itself and the sealing seat 9 as piece match and contact, real linear sealing can be realized, thus ensure that butterfly plate 8 does not almost rub with seal ring 4 when opening, only in the moment of closing, the sealing strip on sealing seat (or perhaps potted line) is fitted like a glove and reach the effect of forced seal.
An adjustment circle 12 is increased between seal ring 4 and platen 2, by the upper-lower position of adjustment adjustment circle 12 before can dispatching from the factory after each Assembly of the parts, the harmful effect that elimination machining manufacture and assembly error are brought sealing effect, ensureing that butterfly plate 8 sealing seat 9 when opening almost does not rub with seal ring 4, only in the moment of closing, the sealing strip on sealing seat 9 being fitted like a glove and reaching the effect of forced seal; And in follow-up using process, owing to adjusting the supporting effect of circle 12, pure metal hard-sealing is sealed between seal ring 4 and sealing seat 9, not only can ensure the reliability of sealing effect, and once there are wearing and tearing, can also by adjusting again reach optimum sealing effect to the position of adjustment circle 12.
Adjustment circle 12 realizes precisely steadily regulating further by taper-face contact with seal ring 4, reaches optimum sealing effect.
Described seal ring 4 adopts metal material, and described sealing seat 9 adopts the metal material higher than the hardness of seal ring 4, and such structure makes between the two if there is friction, and surface of contact also can not be made to occur damaging the wearing and tearing of sealing effect.
This sealing configuration structure of the present invention can realize the use under the different operating modes such as high temperature, low temperature, high pressure, has sealing superior, the advantage that using scope is wide.
In order to improve the effect of sealing further, between described boss 101 and seal ring 4, be also provided with a sealing gasket 5.
In order to ensure the working life of seal ring 4, eliminating internal stress, adopting circular arc recessed outside angle to carry out transition at the minor face of seal ring " 7 " font and the joint on long limit.
Claims (4)
1. a two way sealed high-performance butterfly valve, comprise valve body (1), valve plate (8) and valve rod (10), described valve plate (8) is rotatably arranged in valve body (1) by valve rod (10), it is characterized in that: be provided with at the excircle of valve plate (8) sealing seat (9) that shape is piece, the inner circumference of valve body is provided with a boss (101), the side that boss (101) is positioned at sealing seat (9) miner diameter end is provided with a seal ring (4), the sectional shape of described seal ring (4) is " 7 " font, arrange towards boss (101) on the upside of the minor face of seal ring (4), the inwall of the left side of minor face and valve body (1) fits, the long limit of seal ring (4) is the arc-shaped side protruded to the right, this arc-shaped side matches with described sealing seat (9), the platen (2) that cross section is inverted T-shaped is provided with in the downside of seal ring (4) minor face, the stile of described platen (2) contacts with left section of the minor face of seal ring (4), the horizontal edge of platen (2) is positioned at a section of seal ring (4) outer circumferential sides and is arranged on the step of valve body inner bore end, and be fixedly connected with by hold-down bolt (3), platen (2) horizontal edge is positioned to be provided with to adjust between one section of seal ring (4) endoporus side and right section of the minor face of seal ring (4) and encloses (12), the lower end of adjustment circle (12) contacts with the horizontal edge of platen (2), and the upper-lower position of adjustment circle (12) is carried out by tightening bolt (6), the endoporus of described adjustment circle (12) epimere is the cone shape hole diminished gradually from top to bottom, described cone shape hole inwall contacts with the arc-shaped side lower end of described seal ring (4) and coordinates, and adjustment circle (12) upper end and and right section of the minor face of seal ring (4) between be provided with gap.
2. a kind of two way sealed high-performance butterfly valve according to claim 1, is characterized in that: between described boss (101) and seal ring (4), be also provided with a sealing gasket (5).
3. a kind of two way sealed high-performance butterfly valve according to claim 1 and 2, is characterized in that: the lower end, " 7 " font long limit of described seal ring (4) and to adjust the one side that the cone shape hole inwall that encloses (12) combines be the conical surface consistent with cone shape hole inner wall shape.
4. a kind of two way sealed high-performance butterfly valve according to claim 3, is characterized in that: described seal ring (4) adopts metal material, and described sealing seat (9) adopts the metal material higher than the hardness of seal ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697907.8A CN104455486B (en) | 2014-11-28 | 2014-11-28 | Bi-directional sealing high-performance butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697907.8A CN104455486B (en) | 2014-11-28 | 2014-11-28 | Bi-directional sealing high-performance butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455486A true CN104455486A (en) | 2015-03-25 |
| CN104455486B CN104455486B (en) | 2017-01-18 |
Family
ID=52902009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410697907.8A Active CN104455486B (en) | 2014-11-28 | 2014-11-28 | Bi-directional sealing high-performance butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455486B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231546A (en) * | 1978-12-22 | 1980-11-04 | Fisher Controls Company, Inc. | High-temperature bidirectional metal seal |
| US4303249A (en) * | 1978-07-01 | 1981-12-01 | Klein, Schanzlin & Becker Aktiengesellschaft | Seal for a plate-shaped closure |
| CN2163912Y (en) * | 1993-05-11 | 1994-05-04 | 辽宁省铁岭阀门厂 | Two-way high-temp metallic packing butterfly valve |
| CN2451831Y (en) * | 2000-11-03 | 2001-10-03 | 黄云平 | Metal sealing buttetfly valve |
| CN2542893Y (en) * | 2002-05-16 | 2003-04-02 | 长沙市阀门厂 | Two-way metal sealing butterfly valve |
| CN2751189Y (en) * | 2004-11-10 | 2006-01-11 | 湖北洪城通用机械股份有限公司 | Bidirectional metallic hard sealing butterfly valve |
| CN102865377A (en) * | 2011-07-06 | 2013-01-09 | 朱培元 | Double-way metal seal butterfly valve |
| CN204300391U (en) * | 2014-11-28 | 2015-04-29 | 河南煜达阀门制造有限公司 | A kind of two way sealed high-performance butterfly valve |
-
2014
- 2014-11-28 CN CN201410697907.8A patent/CN104455486B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4303249A (en) * | 1978-07-01 | 1981-12-01 | Klein, Schanzlin & Becker Aktiengesellschaft | Seal for a plate-shaped closure |
| US4231546A (en) * | 1978-12-22 | 1980-11-04 | Fisher Controls Company, Inc. | High-temperature bidirectional metal seal |
| CN2163912Y (en) * | 1993-05-11 | 1994-05-04 | 辽宁省铁岭阀门厂 | Two-way high-temp metallic packing butterfly valve |
| CN2451831Y (en) * | 2000-11-03 | 2001-10-03 | 黄云平 | Metal sealing buttetfly valve |
| CN2542893Y (en) * | 2002-05-16 | 2003-04-02 | 长沙市阀门厂 | Two-way metal sealing butterfly valve |
| CN2751189Y (en) * | 2004-11-10 | 2006-01-11 | 湖北洪城通用机械股份有限公司 | Bidirectional metallic hard sealing butterfly valve |
| CN102865377A (en) * | 2011-07-06 | 2013-01-09 | 朱培元 | Double-way metal seal butterfly valve |
| CN204300391U (en) * | 2014-11-28 | 2015-04-29 | 河南煜达阀门制造有限公司 | A kind of two way sealed high-performance butterfly valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455486B (en) | 2017-01-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |