CN202531898U - Multi-layer seal device of ball valve - Google Patents
Multi-layer seal device of ball valve Download PDFInfo
- Publication number
- CN202531898U CN202531898U CN2012202159061U CN201220215906U CN202531898U CN 202531898 U CN202531898 U CN 202531898U CN 2012202159061 U CN2012202159061 U CN 2012202159061U CN 201220215906 U CN201220215906 U CN 201220215906U CN 202531898 U CN202531898 U CN 202531898U
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- seal
- valve
- valve body
- ball body
- ball
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Abstract
A multi-layer seal device of a ball valve includes a valve body, a ball body is arranged in the valve body, the upper end of the ball body is connected with a valve rod, compression sleeves propped against the ball body are arranged on two sides of the valve body, seal seats are arranged between the compression sleeves and the ball body, and each seal seat comprises a group of graphite gaskets and a group of stainless steel sheets which are overlapped. According to the utility model, the tolerance zone between a shaft sleeve and the valve body as well as the elastic deformation of the valve rod under the medium pressure are effectively compensated, the seal problem in the bidirectional interchange medium conveying process of the valve is solved, and the seal seats comprising the multiple layers of graphite gaskets and stainless steel sheets are endowed with the double seal advantages of metal hard seal and soft seal, so that the seal performance is excellent no matter at a low temperature or a high temperature, and the seal device also has the fireproof function. The high temperature problem is effectively solved, the ball body is prevented from getting stuck when temperature changes, and the seal failure is avoided.
Description
Technical field
The utility model relates to a kind of ball valve, especially a kind of seal arrangement of multi-level ball valve.
Background technique
In ordinary ball valve; Spheroid in the valve body is under the drive of valve rod; Spheroid is rotated; Thereby the break-make in the control valve body, so must have good sealing property between valve body and the spheroid, and the sealing seat of present valve body to adopt on the valve seat embedded O type rubber ring or fluoroplastic be that sealing gasket is combined into Sealing.Because of the wearing and tearing of spheroid and Sealing, and cause leaking when adopting this sealing means, and can not prevent fires.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned existing technology, and a kind of seal arrangement of multi-level ball valve is provided, and adopt Graphite pad and stainless steel sheets to intersect and be formed by stacking, longer service life, and have anti-fire action, high temperature resistant, wear-resisting.
The utility model solves the technological scheme that its technical problem adopts: the seal arrangement of this multi-level ball valve; Comprise valve body; Be provided with spheroid in the valve body, the spheroid upper end is connected with valve rod, and the both sides of valve body are provided with the clamping sleeve of roof pressure on spheroid; Be provided with sealing seat between clamping sleeve and the spheroid, sealing seat is formed by stacking one group of Graphite pad and one group of stainless steel sheets intersection.Graphite pad has good anticorrosive property, high-and low-temperature resistance; Good compression rebound elasticity and high tenacity property; Stainless steel sheets has the precision height, the pulling force degree is strong, degree of finish good, the characteristics of flexible, non-frangible, adopts Graphite pad and stainless steel sheets to intersect the sealing seat that superposes and process, longer service life; Sealing is stable, and has good flameproof effect.
Clamping sleeve and valve body are and are slidingly connected, and are fixed on the valve body through adjusting screw.After using for a long time, because of seepage appears in wearing and tearing, therefore can regulate clamping sleeve and arrive the size that needs between spheroid and the sealing seat to the spheroid directional trim through adjusting screw, just can be compensated and have excellent sealing performance.
The effect that the utility model is useful is: the utility model has compensated tolerance range and the resiliently deformable of valve rod under pressure medium between axle sleeve and the valve body effectively; Solved the sealing problem that valve exists in the medium transport process of two-way exchange; Adopt multilayer Graphite pad and stainless steel sheets composition sealing seat, have the double seal advantage of metal hard-sealing and soft seal, no matter under low temperature and high-temperature condition; All have excellent sealing performance, can play anti-fire action simultaneously.And effectively solved high temperature problem, the variation of temperature spheroid can be not stuck, and sealing can not lost efficacy.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the enlarged diagram of A part among Fig. 1.
Description of reference numerals: valve body 1, clamping sleeve 2, spheroid 3, adjusting screw 4, valve rod 5, axle sleeve 6, sealing seat 7, Graphite pad 8, stainless steel sheets 9.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
With reference to accompanying drawing: the seal arrangement of this multi-level ball valve; Comprise valve body 1; Be provided with spheroid 3 in the valve body 1; The both sides of valve body 1 are provided with the clamping sleeve 2 of roof pressure on spheroid 3, are provided with sealing seat 7 between clamping sleeve 2 and the spheroid 3, and sealing seat 7 is formed by stacking one group of Graphite pad 8 and one group of stainless steel sheets 9 intersection.Clamping sleeve 2 is with valve body 1 and is slidingly connected, and is fixed on the valve body 1 through adjusting screw 4.
The utility model has compensated tolerance range and the resiliently deformable of valve rod 5 under pressure medium between axle sleeve 6 and the valve body 1 effectively; Solved the sealing problem that valve exists in the medium transport process of two-way exchange; Adopt multilayer Graphite pad 8 and stainless steel sheets 9 to form sealing seats, have the double seal advantage of metal hard-sealing and soft seal, no matter under low temperature and high-temperature condition; All have excellent sealing performance, can play anti-fire action simultaneously.And effectively solved high temperature problem, the variation of temperature spheroid can be not stuck, and sealing can not lost efficacy.
The utility model is to be used for drive control valve doors such as pneumatic, electronic, hydraulic pressure.
Though the utility model is through illustrating and describe with reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (2)
1. the seal arrangement of a multi-level ball valve; Comprise valve body (1); Be provided with spheroid (3) in the valve body (1); The both sides of valve body (1) are provided with the clamping sleeve (2) of roof pressure on spheroid (3), are provided with sealing seat (6) between clamping sleeve (2) and the spheroid (3), it is characterized in that: said sealing seat (7) is formed by stacking one group of Graphite pad (8) and one group of stainless steel sheets (9) intersection.
2. the seal arrangement of multi-level ball valve according to claim 1 is characterized in that: said clamping sleeve (2) is with valve body (1) and is slidingly connected, and is fixed on the valve body (1) through adjusting screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202159061U CN202531898U (en) | 2012-05-15 | 2012-05-15 | Multi-layer seal device of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202159061U CN202531898U (en) | 2012-05-15 | 2012-05-15 | Multi-layer seal device of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531898U true CN202531898U (en) | 2012-11-14 |
Family
ID=47133085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202159061U Expired - Lifetime CN202531898U (en) | 2012-05-15 | 2012-05-15 | Multi-layer seal device of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531898U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075536A (en) * | 2013-01-28 | 2013-05-01 | 江苏盐电阀门有限公司 | Low-temperature ball valve and control system thereof |
| CN108105405A (en) * | 2018-02-02 | 2018-06-01 | 高志男 | A kind of valve with sealing structure and apply its tail gas heat-exchanger rig |
| WO2018234877A1 (en) * | 2017-06-20 | 2018-12-27 | Emerson Process Management (India) Private Limited | A non-pressure relieving ball valve |
-
2012
- 2012-05-15 CN CN2012202159061U patent/CN202531898U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075536A (en) * | 2013-01-28 | 2013-05-01 | 江苏盐电阀门有限公司 | Low-temperature ball valve and control system thereof |
| CN103075536B (en) * | 2013-01-28 | 2015-01-14 | 江苏盐电阀门有限公司 | Low-temperature ball valve and control system thereof |
| WO2018234877A1 (en) * | 2017-06-20 | 2018-12-27 | Emerson Process Management (India) Private Limited | A non-pressure relieving ball valve |
| US11313479B2 (en) | 2017-06-20 | 2022-04-26 | Emerson Process Management (India) Private Limited | Non-pressure relieving ball valve |
| CN108105405A (en) * | 2018-02-02 | 2018-06-01 | 高志男 | A kind of valve with sealing structure and apply its tail gas heat-exchanger rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |
|
| CX01 | Expiry of patent term |