CN209026215U - High-performance butterfly valve - Google Patents
High-performance butterfly valve Download PDFInfo
- Publication number
- CN209026215U CN209026215U CN201821645891.6U CN201821645891U CN209026215U CN 209026215 U CN209026215 U CN 209026215U CN 201821645891 U CN201821645891 U CN 201821645891U CN 209026215 U CN209026215 U CN 209026215U
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- CN
- China
- Prior art keywords
- valve
- valve body
- sealing ring
- valve seat
- flexible sealing
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- 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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Abstract
A kind of high-performance butterfly valve.When mainly solving to use temperature not high using seal with O ring between existing floating type valve seat and valve body, and having high temperature requirement, the displacement of butterfly plate valve seat cannot compensate reversed pressure again when, medium active force is unable to the problem of bidirectional bearing is realized in auxiliary valve seat sealing.It is characterized by: being equipped with high-temperature-resistant flexible seal assembly between the valve seat and valve body, sealing ring pressing sleeve, resilient extrusion, supporting bead are disposed between the flexible sealing component and limit assembly, the sealing ring pressing sleeve, which compresses flexible sealing component, makes valve body and valve base sealing.It the advantage is that the sealing effect that not only can guarantee Bidirectional pressure, but also adapt to high-temperature medium operating condition, greatly improve the service performance of butterfly valve.
Description
Technical field
The utility model relates to a kind of valves, and in particular to a kind of high-performance butterfly valve.
Background technique
When the eccentric metal hard sealed butterfly damper requirement produced at present is sealed into bidirectional bearing, valve seat uses floating type valve seat,
It is not high using temperature but using O-ring as sealing element between floating type valve seat and valve body, high-temperature medium work can not be suitable for
Condition.
In high temperature requirement, gasket seal is used between valve seat and valve body, valve seat is fixed in valve body by fastener, and
Compress gasket realizes the sealing of valve seat and valve body, which limit the freedom degree of valve seat, the bit shift compensation of valve seat when reverse pressure-bearing
Amount is insufficient to compensate for the displacement of butterfly plate component, and when valve opening and closing is initial, valve seat can not follow the movement of torque in valve body
Micro adjustment is made in direction, therefore sealing is difficult to accomplish bi-direction zero-leakage.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides a kind of high-performance butterfly valve, solves existing floating type valve
When using temperature not high using seal with O ring between seat and valve body, and having high temperature requirement, butterfly valve seat cannot compensate reversed pressure again when
The displacement of plate, medium active force are unable to the problem of bidirectional bearing is realized in auxiliary valve seat sealing.
Technical solution adopted by the utility model: a kind of high-performance butterfly valve, including valve body, valve rod, butterfly plate component, valve
Seat, limit assembly；The limit assembly is fixedly mounted in valve body, the valve seat float setting valve body and limit assembly it
Between；High-temperature-resistant flexible seal assembly is equipped between the valve seat and valve body, between the flexible sealing component and limit assembly
It is disposed with sealing ring pressing sleeve, resilient extrusion, supporting bead, the sealing ring pressing sleeve, which compresses flexible sealing component, makes valve body
With valve base sealing.
The wedge shaped corner structure in one end of the valve body and the cooperation of flexible sealing component.
One end of the flexible sealing component and the cooperation of sealing ring pressing sleeve is formed with annular groove, on the sealing ring pressing sleeve
It is correspondingly provided with annular convex platform.
The flexible sealing component includes at least two flexible sealing rings fitted closely, between adjacent flexible sealing ring
Wedge shaped cooperation.
The flexible sealing ring uses flexible graphite material.
The resilient extrusion is ring spring, and one end that the supporting bead and resilient extrusion cooperate is in inclined-plane knot
Structure.
Endless groove is equipped in the runner of the valve body, the limit assembly includes equal part stop collar, screw, the equal part limit
Position ring is mounted in endless groove, and described screw edge etc. divides stop collar to be arranged circumferentially, and through equal part stop collar and the branch
Stake pad circle offsets.
The beneficial effects of the utility model are: not only can guarantee the sealing effect of Bidirectional pressure using above scheme, but also adapt to
High-temperature medium operating condition greatly improves the service performance of butterfly valve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment high-performance butterfly valve.
Fig. 2 is the partial structural diagram of the utility model embodiment high-performance butterfly valve.
Fig. 3 is the enlarged diagram in Fig. 2 at A.
Fig. 4 is the structural schematic diagram of the utility model embodiment limit assembly.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown, a kind of high-performance butterfly valve, including valve body 1, valve rod 2, butterfly plate component 3, valve seat 4, limit assembly 5.
The valve seat 4 is mounted in valve body 1, and the limit assembly 5 is fixedly mounted on the forward direction of limitation valve seat 4 in valve body 1
Displacement, and gap is then equipped between the valve seat 4 and valve body 1, so that valve seat 4, which can generate piston effect, to be made in reversed pressure
Valve seat 4 and the direction of displacement of butterfly plate component 3 are in the same direction, and valve seat 4 can compensate the displacement of butterfly plate component 3 under system pressure in gap
Amount, system pressure act on valve seat 4, and additional gives sealing surface one constant seal pressure, so that valve seat 4 makes valve not
It is placed restrictions on by sealing direction, guarantees two way seal.
The flexible sealing component 6 being equipped between the valve seat 4 and valve body 1, the flexible sealing component 6 and limit assembly 5
Between be disposed with sealing ring pressing sleeve 7, resilient extrusion 8, supporting bead 9, the sealing ring pressing sleeve 7 compresses flexible sealing group
Part 6 makes reliably to seal between valve body 1 and valve seat 4, while the elastic property of resilient extrusion 8 can compensate for flexible sealing component
The sealing reliability of 6 dynamic circulations.
Wherein, flexible sealing component 6 is all made of flexible graphite material, and high temperature resistant, wear-resisting characteristic can be more preferable
Use high-temperature medium operating condition.
Certainly, flexible sealing component 6 is not limited to flexible graphite material, other sealing materials resistant to high temperature can also be used.
As shown, shown flexible sealing component 6 includes that the first flexible sealing ring 61 fitted closely and the second flexibility are close
Seal ring 62, the wedge shaped corner structure in one end of the valve body 1 and the cooperation of the first flexible sealing ring 61, the first flexible sealing ring 61 and the
Also wedge shaped cooperation between two flexible sealing rings 62, multiple and different wedge structure cooperation, so that compressing the first flexible sealing ring
61 and when the second flexible sealing ring 62, reach better seal effect, it is ensured that reliable leakproofness at high temperature.
Further, one end that second flexible sealing ring 62 cooperates with sealing ring pressing sleeve 7 is formed with annular groove 63,
It is correspondingly provided with annular convex platform 71 on the sealing ring pressing sleeve 7, passes through annular between sealing ring pressing sleeve 7 and the second flexible sealing ring 62
Groove 63 can preferably cooperate with annular convex platform 71, work more reliable and more stable.
In addition, the resilient extrusion 8 is ring spring, one end that the supporting bead 9 cooperates with resilient extrusion 8 is in
Bevel structure, the bevel structure can better assure that the decrement of ring spring, the elasticity stored after compression can be mended preferably
Repay the sealing reliability of the dynamic circulation of flexible sealing component 6.
As shown, the valve body 1 runner in be equipped with endless groove 11, the limit assembly 5 include equal part stop collar 51,
Screw 52, the equal part stop collar 51 are mounted in endless groove 11, and equal part stop collar 51 is equipped with and 1 location fit of valve body
Step.
The screw 52 along etc. divide stop collar 51 to be arranged circumferentially, and through equal part stop collar 51 and the supporting bead
9 offset, and the screw 52 can not only prevent 51 radial separation of equal part stop collar, and can act to promotion supporting bead 9,
It to carry out flexible adjustment to resilient extrusion 8, can adjust as the case may be to optimum state, guarantee sealing effect
Fruit.
Embodiment is not construed as the limitation to utility model, but any spiritual improvements introduced based on the utility model,
It should all be within the protection scope of the utility model.
Claims (7)
1. a kind of high-performance butterfly valve, including valve body (1), valve rod (2), butterfly plate component (3), valve seat (4), limit assembly (5)；It is described
Limit assembly (5) is fixedly mounted in valve body (1), and the valve seat (4), which is floated, to be arranged between valve body (1) and limit assembly (5)；
It is characterized by: being equipped with high-temperature-resistant flexible seal assembly (6) between the valve seat (4) and valve body (1), the flexibility is close
Sealing ring pressing sleeve (7), resilient extrusion (8), supporting bead (9) are disposed between sealing assembly (6) and limit assembly (5),
The sealing ring pressing sleeve (7), which compresses flexible sealing component (6), seals valve body (1) and valve seat (4).
2. high-performance butterfly valve according to claim 1, it is characterised in that: the valve body (1) is matched with flexible sealing component (6)
The wedge shaped corner structure in one end of conjunction.
3. high-performance butterfly valve according to claim 1, it is characterised in that: the flexible sealing component (6) and sealing ring pressure
One end of set (7) cooperation is formed with annular groove (63), is correspondingly provided with annular convex platform (71) on the sealing ring pressing sleeve (7).
4. high-performance butterfly valve according to claim 1 or 2 or 3, it is characterised in that: the flexible sealing component (6) is at least
The flexible sealing ring fitted closely including two, wedge shaped cooperation between adjacent flexible sealing ring.
5. high-performance butterfly valve according to claim 4, it is characterised in that: the flexible sealing ring uses soft graphite material
Material.
6. high-performance butterfly valve according to claim 1, it is characterised in that: the resilient extrusion (8) is ring spring, institute
One end of supporting bead (9) and resilient extrusion (8) cooperation is stated in bevel structure.
7. high-performance butterfly valve according to claim 1, it is characterised in that: be equipped with endless groove in the runner of the valve body (1)
(11), the limit assembly (5) includes equal part stop collar (51), screw (52), and the equal part stop collar (51) is mounted on ring-type
In slot (11), the screw (52) along etc. divide stop collar (51) to be arranged circumferentially, and through equal part stop collar (51) with it is described
Supporting bead (9) offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821645891.6U CN209026215U (en) | 2018-10-11 | 2018-10-11 | High-performance butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821645891.6U CN209026215U (en) | 2018-10-11 | 2018-10-11 | High-performance butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209026215U true CN209026215U (en) | 2019-06-25 |
Family
ID=66905991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821645891.6U Active CN209026215U (en) | 2018-10-11 | 2018-10-11 | High-performance butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209026215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669451A (en) * | 2021-08-31 | 2021-11-19 | 湖北三江航天红林探控有限公司 | Sealing structure and application thereof in high-temperature and high-pressure system |
-
2018
- 2018-10-11 CN CN201821645891.6U patent/CN209026215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669451A (en) * | 2021-08-31 | 2021-11-19 | 湖北三江航天红林探控有限公司 | Sealing structure and application thereof in high-temperature and high-pressure system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |