CN104455486B - Bi-directional sealing high-performance butterfly valve - Google Patents
Bi-directional sealing high-performance butterfly valve Download PDFInfo
- Publication number
- CN104455486B CN104455486B CN201410697907.8A CN201410697907A CN104455486B CN 104455486 B CN104455486 B CN 104455486B CN 201410697907 A CN201410697907 A CN 201410697907A CN 104455486 B CN104455486 B CN 104455486B
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- China
- Prior art keywords
- sealing ring
- sealing
- valve
- valve body
- boss
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
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 seal high-performance butterfly valve.
Background technology
In known butterfly valve technology, its seal form, adopting sealing structure, encapsulant is rubber, polytetrafluoroethyl-ne more
Alkene etc..Due to the restriction of architectural feature, it is not suitable with high temperature resistant, high pressure and the industry such as corrosion-resistant, wear-resistant.
In addition there is a kind of sealing structure, using an elastic metal o-ring being located on valve interior wall and setting
Seal receptacle on butterfly plate excircle is sealed, this structure, is not only due to manufacture and rigging error can cause sealing to reach not
To Expected Results, and affected it is easy to lose efficacy due to by temperature with by medium in use, and be not easy to repair
Multiple it is necessary to being continuing with of renewal part guarantee butterfly valve, this not only results in the problem of leakage, and causes production cost
Increase.
Content of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of two way seal high-performance butterfly valve,
Can ensure that the reliability of sealing and the life-span of sealing structure can be improved.
The present invention be the technical scheme is that a kind of two way seal high-performance butterfly valve to solve above-mentioned technical problem,
Including valve body, valve plate and valve rod, described valve plate is rotatably provided in valve body by valve rod, is provided with shape in the excircle of valve plate
Shape is the seal receptacle of piece, is provided with a boss on the inner periphery of valve body, and boss is located at the one of seal receptacle miner diameter end
Side is provided with a sealing ring, and the cross sectional shape of described sealing ring is " 7 " font, arranges towards boss on the upside of the minor face of sealing ring,
The left side of minor face is fitted with the inwall of valve body, and the long side of sealing ring is the arc-shaped side protruding to the right, this arc-shaped side with described
Seal receptacle matches, and is provided with, in the downside of sealing ring minor face, platen, the stile of described platen and the sealing ring that section is in the shape of falling t
Left section of minor face contact, the horizontal edge of platen is located at one section of the seal ring with outer the week side of boss step being arranged on valve body inner bore end
On, and be fixedly connected by hold-down bolt；Platen horizontal edge be located at ring inner hole side right section of one section of minor face with sealing ring it
Between be provided with adjustment circle, adjustment circle lower end contact with the horizontal edge of platen, and by tighten bolt come adjustment enclose upper and lower
Position, the endoporus of described adjustment circle epimere is the bellmouth tapering into from top to bottom, described bellmouth inwall with described
The arc-shaped side lower end of sealing ring contacts cooperation, and adjusts the upper end of circle and be provided with gap and right section of the minor face of sealing ring between.
Further, it is additionally provided with a sealing gasket between described boss and sealing ring.
Further, " 7 " font long side lower end of described sealing ring with adjustment circle bellmouth inwall combine one
Face is the taper surface consistent with bellmouth inner wall shape.
Described sealing ring adopts metal material, and described seal receptacle is using the metal material higher than the hardness of sealing ring
Matter.
Beneficial effect:
1st, according to the present invention, sealing ring is designed to " 7 " font, and the left side of the minor face of " 7 " font is contacted with valve interior wall, and
With platen compression, the another side of " 7 " font is arc-shaped, and it is touched with the ball face sealing seated connection on butterfly plate, in sealing ring and platen
Between increase an adjustment circle, " 7 " font arc-shaped side and the seal receptacle of sealing ring can be made by the upper-lower position that adjustment adjustment is enclosed
Between sealing effectiveness reach most preferably, thus eliminate machining manufacturing and rigging error bad shadow that sealing effectiveness is brought
Ring it is ensured that butterfly plate seal receptacle when opening almost is not rubbed with sealing ring, only make the band on seal receptacle in the moment closed
Fit like a glove and reach the effect of forced seal；And during subsequent use, due to the supporting role of adjustment circle, sealing ring
Once the metal hard-sealing being sealed to purely and seal receptacle between, not only can ensure the reliability of sealing effectiveness, and goes out
Now wear and tear, the sealing effectiveness to reach optimum again for the position adjustment to adjustment circle can also be passed through.
2nd, adjustment circle is adjusted by taper-face contact further with sealing ring, can achieve the effect precisely steadily adjusting.
3rd, the present invention is enclosed the use that may be implemented under the difference operating mode such as high temperature, low temperature, high pressure that combines by platen and adjustment
Effect, and without worrying that various environmental factorss can cause to deform and lost efficacy, have that sealing is superior, wide excellent of range
Point.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the side sectional view of Fig. 1.
Fig. 3 is enlarged drawing at a in Fig. 1.
In figure, 1, valve body, 101, boss, 2, platen, 3, hold-down bolt, 4, sealing ring, 5, sealing gasket, 6, tighten bolt,
8th, butterfly plate, 9, seal receptacle, 10, valve rod, 11, pin, 12, adjustment circle.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is done and specifically describe in detail further.
Describe for convenience, the shape of " 7 " as herein described and up and down all with accompanying drawing 1 and shape shown in accompanying drawing 3
And it is consistent up and down.
A kind of two way seal high-performance butterfly valve, including valve body 1, valve plate 8 and valve rod 10, described valve plate 8 passes through valve rod 10
It is rotatably provided in valve body 1.Specifically, valve rod 10 is fixedly mounted on, by pin 11, the mounting seat being arranged at valve plate 8 side
In, the two ends of valve rod 10 are arranged on valve body 1 by bearing.
Single valve bar is used, in practical application, valve plate 8 can also be arranged on using two valve rods in this specific embodiment
Version in valve body 1.
It is provided with, in the excircle of valve plate 8, the seal receptacle 9 being shaped as piece, the inner periphery of valve body is provided with one
Boss 101, the side of boss 101 is the conical surface, the opposite side of boss 101 (i.e. boss 101 is located at the side of seal receptacle 9 miner diameter end,
The miner diameter end herein said refers to when valve plate 8 is closed, as the miner diameter end of the seal receptacle 9 of piece) be
Plane, is provided with a sealing ring 4 in the planar side of boss.
The cross sectional shape of described sealing ring 4 is " 7 " font, towards boss 101 on the upside of the minor face of sealing ring 4 of " 7 " font
Setting, the left side of minor face is fitted with the inwall of valve body 1, to realize the sealing between sealing ring 4 and valve body 1；The length of sealing ring 4
While being the arc-shaped side protruding to the right, this arc-shaped side is matched with described seal receptacle 9, thus realizing between sealing ring 4 and valve plate
Sealing, be provided with, in the downside of sealing ring 4 minor face, the platen 2 that section is in the shape of falling t, the stile of described platen 2 and sealing ring 4
Left section of minor face contacts, and the horizontal edge of platen 2 is located at one section of the sealing ring 4 outer circumferential sides step being arranged on valve body inner bore end
On, and be fixedly connected by hold-down bolt 3；One section of minor face with sealing ring 4 that platen 2 horizontal edge is located at sealing ring 4 endoporus side is right
It is provided with adjustment circle 12, the lower end of adjustment circle 12 is contacted with the horizontal edge of platen 2, and adjusts tune by tightening bolt 6 between section
The upper-lower position of whole circle 12.
The endoporus of described adjustment circle 12 epimeres is the bellmouth tapering into from top to bottom, described bellmouth inwall and institute
The arc-shaped side lower end of the sealing ring 4 stated contacts cooperation, and adjusts the upper end of circle 12 and set and right section of the minor face of sealing ring 4 between
There is gap.
The one side that " 7 " font long side lower end of described sealing ring 4 is combined with the bellmouth inwall of adjustment circle 12 is preferred
It is the taper surface consistent with bellmouth inner wall shape.
Sealing ring 4 inner ring design (i.e. the long side of " 7 " font) be to seal receptacle 9 side protrude arc-shaped side, its with as ball
Face a part seal receptacle 9 match contact when, it is possible to achieve real linear sealing, thus ensure butterfly plate 8 open when almost
Do not rub with sealing ring 4, only so that the band (or perhaps seal line) on seal receptacle is fitted like a glove in the moment closed and reach
The effect of forced seal.
Increase an adjustment circle 12 between sealing ring 4 and platen 2, can be adjusted by adjustment before dispatching from the factory after each parts assembly
The upper-lower position of whole circle 12, eliminates that machining manufactures and rigging error harmful effect that sealing effectiveness is brought is it is ensured that butterfly plate 8
When opening, seal receptacle 9 is not almost rubbed with sealing ring 4, only so that the band on seal receptacle 9 is fitted like a glove in the moment closed
Reach the effect of forced seal；And during subsequent use, due to adjustment circle 12 supporting role, sealing ring 4 with close
The metal hard-sealing being sealed to purely between envelope seat 9, not only can ensure the reliability of sealing effectiveness, and once mill
Damage, the sealing effectiveness to reach optimum again for the position adjustment to adjustment circle 12 can also be passed through.
Adjustment circle 12 is realized by taper-face contact precisely steadily adjusting with sealing ring 4 further, reaches the sealing of optimum
Effect.
Described sealing ring 4 adopts metal material, and described seal receptacle 9 is using the metal higher than the hardness of sealing ring 4
Material, such structure, make, between the two if there is friction, contact surface also will not be made to occur damaging the abrasion of sealing effectiveness.
This sealing structure structure of the present invention can realize the use under the difference operating mode such as high temperature, low temperature, high pressure, has
Sealing is superior, the wide advantage of range.
In order to improve the effect of sealing further, it is additionally provided with a sealing gasket between described boss 101 and sealing ring 4
5.
In order to ensure the service life of sealing ring 4, eliminate internal stress, in the minor face of sealing ring " 7 " font and the company on long side
The place of connecing carries out transition using to recessed circular arc outside angle.
Claims (4)
1. a kind of two way seal high-performance butterfly valve, including valve body (1), valve plate (8) and valve rod (10), described valve plate (8) passes through
Valve rod (10) be rotatably provided in valve body (1) it is characterised in that: be provided with the excircle of valve plate (8) and be shaped as one, sphere
The seal receptacle (9) dividing, is provided with a boss (101) on the inner periphery of valve body, and boss (101) is located at seal receptacle (9) miner diameter end
Side be provided with a sealing ring (4), the cross sectional shape of described sealing ring (4) is " 7 " font, on the upside of the minor face of sealing ring (4)
Towards boss (101) setting, the left side of minor face is fitted with the inwall of valve body (1), and the long side of sealing ring (4) is protruded to the right
Arc-shaped side, this arc-shaped side is matched with described seal receptacle (9), and being provided with section in the downside of sealing ring (4) minor face is in the shape of falling t
Platen (2), the stile of described platen (2) contacted with left section of the minor face of sealing ring (4), and the horizontal edge of platen (2) is located at sealing
One section of circle (4) outer circumferential sides is arranged on the step of valve body inner bore end, and is fixedly connected by hold-down bolt (3)；Platen
(2) horizontal edge is located at one section of sealing ring (4) endoporus side and is provided with adjustment circle (12) and right section of the minor face of sealing ring (4) between, adjusts
The lower end of circle (12) is contacted with the horizontal edge of platen (2), and by tightening bolt (6) come the upper bottom of adjustment circle (12)
Put, the endoporus of described adjustment circle (12) epimere is the bellmouth tapering into from top to bottom, described bellmouth inwall with described
The arc-shaped side lower end of sealing ring (4) contact cooperation, and adjust between upper end and right section of the minor face of sealing ring (4) of circle (12)
It is provided with gap.
2. a kind of two way seal high-performance butterfly valve according to claim 1 it is characterised in that: in described boss (101)
It is additionally provided with a sealing gasket (5) and sealing ring (4) between.
3. a kind of two way seal high-performance butterfly valve according to claim 1 and 2 it is characterised in that: described sealing ring (4)
" 7 " font long side lower end be consistent with bellmouth inner wall shape with the one side that combines of bellmouth inwall of adjustment circle (12)
Taper surface.
4. a kind of two way seal high-performance butterfly valve according to claim 3 it is characterised in that: described sealing ring (4) is adopted
With metal material, described seal receptacle (9) is using the metal material higher than the hardness of sealing 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 CN104455486A (en) | 2015-03-25 |
| CN104455486B true 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) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2829066C2 (en) * | 1978-07-01 | 1982-05-06 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Seal for a butterfly valve |
| 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 |
-
2014
- 2014-11-28 CN CN201410697907.8A patent/CN104455486B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455486A (en) | 2015-03-25 |
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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 |