CN208169547U - A kind of three-eccentric-butterfly-valve suitable for high temperature and pressure - Google Patents
A kind of three-eccentric-butterfly-valve suitable for high temperature and pressure Download PDFInfo
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- CN208169547U CN208169547U CN201820663918.8U CN201820663918U CN208169547U CN 208169547 U CN208169547 U CN 208169547U CN 201820663918 U CN201820663918 U CN 201820663918U CN 208169547 U CN208169547 U CN 208169547U
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Abstract
The utility model discloses a kind of three-eccentric-butterfly-valves suitable for high temperature and pressure, belong to valve technology field, including：Valve body, extended body, valve rod and valve plate；The extended body is located at the outside of the valve body, and the front/rear end of extended body is aligned with the front/rear end of valve body；The valve plate is located in the inner chambers of the valve body；The valve rod passes through valve body and extended body and is rigidly connected with the valve plate；The valve plate is coated on the outside of the valve rod；Part of the valve rod other than extended body is connect with driving structure；The extended body is equipped with radiator, and the radiator is located at the junction of valve rod and executing agency.The three-eccentric-butterfly-valve of the utility model not only perfect heat-dissipating, but also it is not easy locking under the premise of effective sealing, structure described above form is applicable not only to the valve to clamping structure, while being also applied for the valve of flange-type structure, built-up welding formula structure.
Description
Technical field
The utility model relates to valve technology fields, more particularly to a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure.
Background technique
Butterfly valve is answered because its structure is simple, opening and closing is quick, structure is short and small, price is low in the commercially available extensive popularization of valve
With.Common butterfly valve product is mainly made of valve body, valve rod, valve plate, transmission mechanism currently on the market, and valve body is equipped with and valve plate
The mutually matched sealing surface of seat of sealing surface, the sealing surface of seat have hard sealing and two kinds of structure types of soft seal.In order to reduce
Open and close torque, improves seal pressure, and the valve body of butterfly valve, valve rod generally use three eccentricity structure between valve plate.Three-eccentric-butterfly-valve refers to
Be valve rod axle center while deviateing disk center and body central, and valve seat axis of rotation and valve channel axis have certain angle
Valve.Three-eccentric-butterfly-valve is widely used in metallurgy, electric power, petrochemical industry and the plumbing of medium temperature≤425 DEG C at present
On the industrial pipelines such as urban construction, makes adjustments flow and carry cutout body and use.
Application of the three-eccentric-butterfly-valve in high temperature and pressure field is concentrated mainly on coal chemical industry, current such valve mainly according to
Rely in import brand, it is expensive.The primary structure of home products is at high temperature due to material dilatancy, in valve switch mistake
It is easy to block valve plate in journey, causes valve that cannot drive.The damage that will cause sealing surface after enforced opening, causes valve to be let out
Leakage；In addition at high temperature under high pressure, the compressive deformation for winding pad part is difficult to control, and may cause valve leak.
Utility model content
It is good and seal to provide a kind of thermal diffusivity in order to overcome drawbacks described above existing in the prior art for the utility model
The good three-eccentric-butterfly-valve suitable for high temperature and pressure of effect.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique：
A kind of three-eccentric-butterfly-valve suitable for high temperature and pressure, including：Valve body, extended body, valve rod and valve plate；The extended body
It is located at the outside of the valve body, the front/rear end of extended body is aligned with the front/rear end of valve body；The valve plate is located at the valve body
Inner chambers in；The valve rod passes through valve body and extended body and is rigidly connected with the valve plate；The valve plate is coated on described
On the outside of valve rod；Part of the valve rod other than extended body is connect with driving structure；The extended body is equipped with radiator, institute
State the junction that radiator is located at valve rod and executing agency.
Further, the diminishing step-like annular table of outer diameter, annular table are provided at valve body on the valve plate
The first cascaded surface be equipped with the seal groove of annular, flexible wound gasket is equipped in seal groove；Also pacify on first cascaded surface
Equipped with the sealing ring for pushing down wound gasket；Second cascaded surface of annular table is equipped with pressure ring, and the pressure ring is set on the valve plate；
The support ring of support sealing ring is equipped on the first cascaded surface.
Further, the support ring is L shape, and the horizontal component of support ring is placed on the first cascaded surface, support ring it is vertical
It is partially disposed between the sealing ring and the pressure ring.
Further, the release groove for accommodating wound gasket extruding part is provided with below the seal groove.
Further, there are the gaps of 0.1-1mm between sealing ring and valve plate.
Further, there are the radial clearances of 0.5-5mm between the support ring and valve plate.
Further, there are the axial gaps of 1-5mm between the support ring and valve plate.
The utility model has the advantages and positive effects of：
1, the three-eccentric-butterfly-valve of the utility model is provided with extended body and radiator, the heat dissipation performance compared with conventional valves
It greatly improves, greatly reduces damage of the worst hot case to structure and valve itself is executed.
2, it is provided with the support ring of support sealing ring between sealing ring and pressing plate, avoids sealing ring in high temperature and pressure ring
Dilatancy under border and make valve locking.
3, the release groove for accommodating wound gasket extruding part is provided with below seal groove, thus extrusion portion when wound gasket deforms
Divide and be filled into release groove automatically, sealing is effectively guaranteed.
4, the gap between sealing ring and valve plate, between support ring and valve plate and between support ring and valve plate is increased,
Improve sealing effect.
The three-eccentric-butterfly-valve of the utility model is not easy locking under the premise of effective sealing, and structure described above form is not only
Suitable for the valve to clamping structure, while being also applied for the valve of flange-type structure, built-up welding formula structure.
Detailed description of the invention
Fig. 1 is the elevational cross-sectional view of the preferred embodiment in the utility model；
Fig. 2 is the partial enlarged view of Fig. 1.
Wherein, 1, valve body；2, extended body；3, valve rod；4, valve plate；4-1, seal groove；4-1a, release groove；5, radiator；
6, wound gasket；7, sealing ring；8, pressure ring；9, support ring.
Specific embodiment
For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and
It is described in detail with the accompanying drawings as follows：
Please refer to Fig. 1 to Fig. 2, a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure, including：Valve body 1, extended body 2, valve rod
3 and valve plate 4；The extended body 2 is located at the outside of the valve body 1, the front/rear end of extended body 2 and the front/rear end pair of valve body 1
Together；The valve plate 4 is located in the inner chambers of the valve body 1；The valve rod 3 pass through valve body 1 and extended body 2 and with the valve plate
4 rigid connections；The valve plate 4 is coated on 3 outside of valve rod；Part and driving structure of the valve rod 3 other than extended body 2
Connection；Radiator 5 is additionally provided on the extended body 2, the radiator 5 is located at the junction of valve rod 3 Yu executing agency；It is excellent
Choosing, the radiator 5 is cooling fin.The setting of extended body 2 and radiator 5, so that the butterfly valve and biography of the utility model
System butterfly valve is greatly improved compared to heat dissipation performance, greatly reduces damage of the worst hot case to executing agency and valve itself.
It is provided with the diminishing step-like annular table of outer diameter at the valve body 1 on the valve plate 4, the first of annular table
Cascaded surface is equipped with the seal groove 4-1 of annular, is equipped with flexible wound gasket 6 in seal groove 4-1；Also pacify on first cascaded surface
Equipped with the sealing ring 7 for pushing down wound gasket 6；Second cascaded surface of annular table is equipped with pressure ring 8, and the pressure ring 8 is set in the valve
On plate 4；The usual pressure ring 8 directly bears against the outer surface of sealing ring 7 to reach sealing effect；Under room temperature, due to being wound
Padding the effect of 6 elastic pressures makes sealing ring 7 contact generation effectively sealing with wound gasket 6, and sealing ring 7 is by torque effect and valve body 1
Sealing surface, which combines, generates effectively sealing.But under high temperature environment, all parts generate dilatancy, the dilatancy of sealing ring 7
It is deformed greater than 1 Mi Mianchu of valve body, valve is easy locking.Therefore the utility model is equipped with support sealing ring 7 on the first cascaded surface
Support ring 9, it is preferred that the support ring 9 is L shape, and the horizontal component of support ring 9 is placed on the first cascaded surface, support ring 9
Vertical portion is placed between the sealing ring 7 and the pressure ring 8.
Furthermore the seal groove 4-1 is generally rectangular, can be deformed extrusion after wound gasket 6 is pressurized and is heated, often squeeze
Part and position are difficult to control out, are easy to make valve leak.The utility model is provided with below original rectangular seal slot 4-1
The release groove 4-1a of 6 extruding part of wound gasket is accommodated, so that extruding part when wound gasket 6 deforms is filled into release groove 4- automatically
In 1a, sealing is effectively guaranteed.
Preferably, the clearance distance between the sealing ring 7 and valve plate 4 is a, preferred a=0.1-1mm；It in this way can be with
Squeeze the swell increment of sealing ring 7 and wound gasket 6 while filling up gap a, make valve not only will not locking, but also can guarantee to seal.
Preferably, the radial clearance distance b=0.5-5mm of the support ring 9 and valve plate 4, to prevent support ring 9 heated
After dilatancy, squeezing pressure ring 8 leads to valve leak.
Preferably, the axial gap c=1-5mm of the support ring 9 and valve plate 4, so that sealing ring 7 be made to act in torque
Under, realize that sealing ring 7, from centering, makes sealing ring 7 generate voussoir effect with 1 sealing surface of valve body, to realize effective sealing.
The three eccentricity valve of the utility model is less susceptible to locking under the premise of effective sealing, and structure described above form is not
It is only applicable to the valve to clamping structure, while being also applied for the valve of flange-type structure, built-up welding formula structure.
The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model
Embodiment should not be considered as limiting the scope of the present invention.It is made according to the scope of application of this utility model equal
Deng variation and improvement etc., should still belong within the patent covering scope of the utility model.
Claims (7)
1. a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure, including：Valve body (1), extended body (2), valve rod (3) and valve plate (4)；
It is characterized in that：The extended body (2) is located at the outside of the valve body (1), front/rear end and valve body (1) of extended body (2)
Front/rear end alignment；The valve plate (4) is located in the inner chambers of the valve body (1)；The valve rod (3) pass through valve body (1) and
Extended body (2) is simultaneously rigidly connected with the valve plate (4)；The valve plate (4) is coated on the outside of the valve rod (3)；The valve rod (3)
Part other than extended body (2) is connect with driving structure；The extended body (2) is equipped with radiator (5), the heat dissipation dress
Set the junction that (5) are located at valve rod (3) and executing agency.
2. a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure as described in claim 1, it is characterised in that：In the valve plate
(4) the diminishing step-like annular table of outer diameter is provided at valve body (1), the first cascaded surface of annular table is equipped with ring
The seal groove (4-1) of shape, seal groove (4-1) is interior to be equipped with wound gasket (6)；It is also equipped on first cascaded surface and pushes down wound gasket (6)
Sealing ring (7)；Second cascaded surface of annular table is equipped with pressure ring (8), and the pressure ring (8) is set on the valve plate (4)；?
First cascaded surface is equipped with the support ring (9) of support sealing ring (7).
3. a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure as claimed in claim 2, it is characterised in that：The support ring
It (9) is L shape, the horizontal component of support ring (9) is placed on the first cascaded surface, and the vertical portion of support ring (9) is placed in the sealing
It encloses between (7) and the pressure ring (8).
4. a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure as claimed in claim 2, it is characterised in that：The seal groove
The release groove (4-1a) for accommodating wound gasket (6) extruding part is provided with below (4-1) (4-1).
5. a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure as claimed in claim 2, it is characterised in that：Sealing ring (7) with
There are the gaps of 0.1-1mm between valve plate (4).
6. a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure as claimed in claim 2, it is characterised in that：The support ring
(9) there are the radial clearances of 0.5-5mm between valve plate (4).
7. a kind of three-eccentric-butterfly-valve suitable for high temperature and pressure as claimed in claim 2, it is characterised in that：The support ring
(9) there are the axial gaps of 1-5mm between valve plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820663918.8U CN208169547U (en) | 2018-05-04 | 2018-05-04 | A kind of three-eccentric-butterfly-valve suitable for high temperature and pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820663918.8U CN208169547U (en) | 2018-05-04 | 2018-05-04 | A kind of three-eccentric-butterfly-valve suitable for high temperature and pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169547U true CN208169547U (en) | 2018-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820663918.8U Active CN208169547U (en) | 2018-05-04 | 2018-05-04 | A kind of three-eccentric-butterfly-valve suitable for high temperature and pressure |
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| CN (1) | CN208169547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321403A (en) * | 2021-12-17 | 2022-04-12 | 无锡斯考尔自动控制设备有限公司 | Lengthened upper valve cover three-eccentric center butterfly valve |
-
2018
- 2018-05-04 CN CN201820663918.8U patent/CN208169547U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321403A (en) * | 2021-12-17 | 2022-04-12 | 无锡斯考尔自动控制设备有限公司 | Lengthened upper valve cover three-eccentric center butterfly valve |
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