CN204300391U - A kind of two way sealed high-performance butterfly valve - Google Patents

A kind of two way sealed high-performance butterfly valve Download PDF

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Publication number
CN204300391U
CN204300391U CN201420726520.6U CN201420726520U CN204300391U CN 204300391 U CN204300391 U CN 204300391U CN 201420726520 U CN201420726520 U CN 201420726520U CN 204300391 U CN204300391 U CN 204300391U
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China
Prior art keywords
seal ring
valve
minor
platen
shaped
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CN201420726520.6U
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Chinese (zh)
Inventor
金胜利
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HENAN YUDA VALVE MANUFACTURING Co Ltd
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HENAN YUDA VALVE MANUFACTURING Co Ltd
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Abstract

A kind of two way sealed high-performance butterfly valve, comprise valve body, valve plate and valve rod, the excircle of valve plate is provided with sealing seat, the inner circumference of valve body is provided with boss, boss side is provided with seal ring, seal ring is " 7 " font, the minor face of seal ring is arranged towards boss, fit with valve interior wall on the left of minor face, the long limit of seal ring is arc-shaped side, arc-shaped side matches with sealing seat, the downside of seal ring minor face is provided with the platen that cross section is inverted T-shaped, the stile of platen contacts with the minor face of seal ring, left section of the horizontal edge of platen is located on the step of valve end, be fixedly connected with by hold-down bolt, be provided with between right section of platen horizontal edge and the minor face of seal ring to adjust and enclose, adjustment circle contacts with the horizontal edge of platen, be fixedly connected with by tightening bolt, the endoporus of adjustment circle epimere is cone shape hole gradually little from top to bottom, and cone shape hole inwall matches with the arc-shaped side lower end of seal ring.Can ensure that butterfly plate does not almost rub with seal ring when opening, good sealing effect, long service life.

Description

A kind of two way sealed high-performance butterfly valve
Technical field
The utility model relates to a kind of butterfly valve of pipeline, especially relates 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.
Model utility content
In order to solve the problems of the technologies described above, the utility model 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 utility model 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 utility model, 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 utility model 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 utility model.
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 utility model.
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 utility model 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).
CN201420726520.6U 2014-11-28 2014-11-28 A kind of two way sealed high-performance butterfly valve Active CN204300391U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420726520.6U CN204300391U (en) 2014-11-28 2014-11-28 A kind of two way sealed high-performance butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420726520.6U CN204300391U (en) 2014-11-28 2014-11-28 A kind of two way sealed high-performance butterfly valve

Publications (1)

Publication Number Publication Date
CN204300391U true CN204300391U (en) 2015-04-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420726520.6U Active CN204300391U (en) 2014-11-28 2014-11-28 A kind of two way sealed high-performance butterfly valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104455486A (en) * 2014-11-28 2015-03-25 河南煜达阀门制造有限公司 Bi-directional sealing high-performance butterfly valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104455486A (en) * 2014-11-28 2015-03-25 河南煜达阀门制造有限公司 Bi-directional sealing high-performance butterfly valve

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