CN201386826Y - Double-sealing eccentric rotary cut-off valve - Google Patents
Double-sealing eccentric rotary cut-off valve Download PDFInfo
- Publication number
- CN201386826Y CN201386826Y CN200920147658U CN200920147658U CN201386826Y CN 201386826 Y CN201386826 Y CN 201386826Y CN 200920147658 U CN200920147658 U CN 200920147658U CN 200920147658 U CN200920147658 U CN 200920147658U CN 201386826 Y CN201386826 Y CN 201386826Y
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- Prior art keywords
- valve
- sealing
- valve seat
- double
- spool
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 239000002184 metal Substances 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Taps Or Cocks (AREA)
- Mechanically-Actuated Valves (AREA)
- Sliding Valves (AREA)
Abstract
A double-sealing eccentric rotary cut-off valve capable of improving the sealing performance and sealing pressure level of an eccentric rotary cut-off valve adopts the technical scheme that the double-sealing eccentric rotary cut-off valve comprises a valve body, an upper valve rod, a valve core and a valve seat. The double-sealing eccentric rotary cut-off valve is characterized in that the valve seat is movable; a pretension spring is arranged between the valve body and the valve seat and enables the valve seat and the valve core to be jointed tightly; and a sealing piece is arranged on the junction surface of the valve body and the valve seat.
Description
Technical field
The utility model relates to a kind of eccentric rotation cut-off valve, the eccentric rotation of particularly a kind of double-sealing cut-off valve.
Background technique
Eccentric rotation cut-off valve is the widely used class valves of industry such as Coal Chemical Industry, refinery, rock gas, metallurgy, electric power, and suitable medium has been contained gas, liquid, Dual-Phrase Distribution of Gas olid body, liquid-solid two-phase fluid etc.Adopt off-centre-wedging principle on the common off-centre rotation cut-off valve structure, valve seat and gland one, be connected on the valve body with bolt, in actual use, because the variation of temperature field and pressure field, creep strain takes place through regular meeting in bolt, will cause valve seat to be connected the pad place with valve body like this and produce reveal, simultaneously spool with the valve base sealing position because leakage appears in seal pressure inadequately; The suitable pressure of eccentric in addition rotation cut-off valve be confined to always mesolow power (≤4.0Mpa), can not be applied in more high pressure occasion; These problems are seriously puzzlement and the development of the eccentric rotation of obstruction cut-off valve all.
The model utility content
The purpose of this utility model provides a kind of eccentric rotation of double-sealing cut-off valve that can improve eccentric rotation cut-off valve sealability and sealing load grade.
The purpose of this utility model is achieved through the following technical solutions: the eccentric rotation of double-sealing cut-off valve, comprise valve body, upper valve rod, spool, valve seat, it is characterized in that valve seat is removable valve seat, be provided with the preloading spring that valve seat and spool are fitted tightly between valve body and the valve seat, on the junction plane of valve body and valve seat, be provided with Sealing.
Valve body and spool are eccentric structure, adopt the single piece type valve body.
Spool adopts spline to be connected with upper valve rod, and spool has the support of bearing up and down.
Sealing place at valve body and valve seat junction plane is provided with the tip-angled shape doctor blade device.
Described Sealing is metal hard-sealing or soft seal.
Effect of the present utility model is: the eccentric rotation of double-sealing cut-off valve, comprise valve body, upper valve rod, spool, valve seat, it is characterized in that valve seat is removable valve seat, be provided with the preloading spring that valve seat and spool are fitted tightly between valve body and the valve seat, on the junction plane of valve body and valve seat, be provided with Sealing.Make removable valve seat keep certain seal pressure with spool all the time by preloading spring, solved because of the bolt distortion and has produced the problem of leakage.
Spool adopts spline to be connected with upper valve rod, and spool all has the support of bearing up and down, has reduced operational torque, has also reduced the pressure medium that spool bears simultaneously.
The sealing vice division chief that valve seat contacts with spool is provided with the tip-angled shape doctor blade device, can strike off the dirt and the medium crystallization of adhering on the spool, has self-cleaning function.
Description of drawings
Fig. 1 is the eccentric rotation of a double-sealing cut-off valve structural representation;
Fig. 2 is the enlarged diagram of the sealing part A of Fig. 1.
Embodiment
Now accompanying drawing is further described the utility model in conjunction with the embodiments, and certain protection domain of the present utility model is not limited to the embodiment in the accompanying drawing.
As shown in Figure 1, the eccentric rotation of the utility model double-sealing cut-off valve, comprise upper valve rod 5, lower valve rod 2, upper bearing (metal) 8, lower bearing 3, valve body 1, spring 9, spool 4, valve seat 6, gland 7, drive upper valve rod 5 by actuator and reach spool 4 rotations that are connected with upper valve rod 5 splines, thereby reach the valve opening and closing process, upper valve rod 5 has upper bearing (metal) 8 and lower bearing 3 to support respectively with lower valve rod 2, upper valve rod 5 has a throw of eccentric with the sphere centre of lower valve rod 2 and valve seat 6 and spool 4, realize that by this throw of eccentric spool 4 has cam wedging effect at the relative valve seat 6 of opening-closing process, make 4 pairs of valve seats of spool 6 produce certain seal pressure; There is the valve seat 6 of certain mobile space to guarantee that by gland 7 and spring 9 spool 4 is had certain seal pressure in off position all the time in addition, improve sealability and sealing load grade, even in use sealing pair produces wearing and tearing, can realize the sealing wear self-compensating function by eccentric and removable valve seat, prolongation product working life.
In order to prevent that valve seat and valve body junction from produce revealing, be provided with Sealing 10 at the junction plane of valve seat 6 and valve body 1, Sealing 10 is metal hard-sealing or soft seal.Be provided with tip-angled shape doctor blade device 11 at the Sealing place of valve body and valve seat junction plane in addition, strike off the dirt and the medium crystal that adhere on the spool, have self-cleaning function (referring to Fig. 2).
Claims (5)
1, the eccentric rotation of double-sealing cut-off valve, comprise valve body, upper valve rod, spool, valve seat, it is characterized in that valve seat is removable valve seat, be provided with the preloading spring that valve seat and spool are fitted tightly between valve body and the valve seat, on the junction plane of valve body and valve seat, be provided with Sealing.
2, the eccentric rotation of double-sealing according to claim 1 cut-off valve is characterized in that valve body and spool are eccentric structure, adopts the single piece type valve body.
3, the eccentric rotation of double-sealing according to claim 1 cut-off valve is characterized in that spool and upper valve rod adopt spline to be connected, and spool has the support of bearing up and down.
4, the eccentric rotation of double-sealing according to claim 1 cut-off valve is characterized in that being provided with the tip-angled shape doctor blade device at the Sealing place of valve body and valve seat junction plane.
5, the eccentric rotation of double-sealing according to claim 1 cut-off valve is characterized in that described Sealing is metal hard-sealing or soft seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920147658U CN201386826Y (en) | 2009-04-14 | 2009-04-14 | Double-sealing eccentric rotary cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920147658U CN201386826Y (en) | 2009-04-14 | 2009-04-14 | Double-sealing eccentric rotary cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386826Y true CN201386826Y (en) | 2010-01-20 |
Family
ID=41579359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920147658U Expired - Fee Related CN201386826Y (en) | 2009-04-14 | 2009-04-14 | Double-sealing eccentric rotary cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386826Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401145A (en) * | 2010-09-14 | 2012-04-04 | 上海伟伦阀门有限公司 | Multi-sealed eccentric ball valve |
| CN102536521A (en) * | 2010-09-28 | 2012-07-04 | 株式会社京浜 | Fluid passage valve |
| CN110388480A (en) * | 2019-06-03 | 2019-10-29 | 欧电阀门有限公司 | Eccentric half-ball valve |
| CN110513502A (en) * | 2019-08-27 | 2019-11-29 | 志泰阀门有限公司 | Crystallize dedicated regulation valve |
| CN114776827A (en) * | 2022-04-12 | 2022-07-22 | 浙江贝尔控制阀门有限公司 | Improved eccentric rotary valve |
-
2009
- 2009-04-14 CN CN200920147658U patent/CN201386826Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401145A (en) * | 2010-09-14 | 2012-04-04 | 上海伟伦阀门有限公司 | Multi-sealed eccentric ball valve |
| CN102536521A (en) * | 2010-09-28 | 2012-07-04 | 株式会社京浜 | Fluid passage valve |
| CN102536521B (en) * | 2010-09-28 | 2015-06-03 | 株式会社京浜 | Fluid passage valve |
| CN110388480A (en) * | 2019-06-03 | 2019-10-29 | 欧电阀门有限公司 | Eccentric half-ball valve |
| CN110513502A (en) * | 2019-08-27 | 2019-11-29 | 志泰阀门有限公司 | Crystallize dedicated regulation valve |
| CN114776827A (en) * | 2022-04-12 | 2022-07-22 | 浙江贝尔控制阀门有限公司 | Improved eccentric rotary valve |
| CN114776827B (en) * | 2022-04-12 | 2024-03-26 | 浙江贝尔控制阀门有限公司 | Improved eccentric rotary valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Afa Fluid Control Co., Ltd., Shandong Assignor: Xie Zhengze Contract record no.: 2011370000576 Denomination of utility model: Double-sealing eccentric rotary cut-off valve Granted publication date: 20100120 License type: Exclusive License Record date: 20111227 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20120414 |