CN203413139U - Double-direction pressure balance butterfly valve - Google Patents
Double-direction pressure balance butterfly valve Download PDFInfo
- Publication number
- CN203413139U CN203413139U CN201320509201.5U CN201320509201U CN203413139U CN 203413139 U CN203413139 U CN 203413139U CN 201320509201 U CN201320509201 U CN 201320509201U CN 203413139 U CN203413139 U CN 203413139U
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- Prior art keywords
- valve
- butterfly
- valve seat
- butterfly plate
- valve body
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- Expired - Fee Related
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Abstract
The utility model relates to a butterfly valve, in particular to a double-direction pressure balance butterfly valve. According to the technical scheme, the double-direction pressure balance butterfly valve comprises a valve body, a butterfly plate and a valve shaft. A medium entering flow channel, a medium flow-out channel and a connecting cavity which is connected with the medium entering flow channel and the medium flow-out channel are arranged on the valve body, the butterfly plate is arranged in the connecting cavity, the butterfly plate is connected with the valve shaft, a plurality of sealing pad layers are arranged on the outer periphery face of the butterfly plate, a valve base is arranged between the butterfly plate and the valve body, the inner periphery face of the valve base and the butterfly plate are attached in an oblique-face-sealing mode, the outer periphery face of the valve base and the butterfly body are attached in a sealing mode, and a sealing piece is arranged between the valve base and the valve body. The double-direction pressure balance butterfly valve can achieve double-direction pressure-bearing balance and is good in sealing performance.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly a kind of bidirection press balance butterfly valve.
Background technique
Along with market is constantly developed, increasing operating mode medium requirement open-shut device-valve plays a role than being only unidirectional pressure-bearing problem in pipeline.Increasing piping design all needs bidirectional bearing requirement.In development in recent years, pipeline open-shut device-butterfly valve is more and more subject to the favor of applying unit.Butterfly valve is again Flap valve, is a kind of modulating valve simple in structure, and the switch that also can be used for low pressure pipeline medium is simultaneously controlled.The flap that butterfly valve is or butterfly plate are disk, rotate to reach a kind of valve of open and close around valve shaft, and on pipeline, main rising cut off and throttling action.Butterfly valve has light and handy feature, than other valves, will save material, simple in structure, opens and closes rapidly, and cut-out and throttling can be used, and fluid resistance is little, rapid operation.
Traditional butterfly valve is mainly comprised of the actuator by valve body, butterfly plate, valve shaft and the rotation of driving valve shaft, valve body is provided with medium and enters the connection chamber that runner, medium outflow runner and connecting media enter runner and medium outflow runner, butterfly plate is located in connection chamber, and butterfly plate is connected with valve shaft, can rotate with the rotation of valve shaft.Between the circumferential edge of butterfly plate and valve body, be provided with Sealing, with this, form the sealing between butterfly plate and valve body, the seal is by being multi-layer sealed pad, after arranging like this, butterfly valve when being subject to positive pressure, sealing meeting is because the pressure-acting of medium, make valve seat and seal ring press tighter and tighter, better guarantee the sealability of butterfly valve; Yet when butterfly valve is subject to reverse media pressure, valve seat and Sealing can, because the pressure-acting of medium departs from mutually, cause seal failure.The reason of seal failure is that butterfly plate is subject to pressure medium effect and has amount of deformation, and valve seat and valve body are integrated type, are subject to pressure medium can not change, and cause Sealing and valve seat to depart from, seal failure.
Summary of the invention
The deficiency existing for prior art, the utility model provide a kind of can bi-directional compression balance, the bidirection press balance butterfly valve of good airproof performance.
For achieving the above object, the utility model provides following technological scheme: a kind of bidirection press balance butterfly valve, include valve body, butterfly plate and valve shaft, described valve body is provided with medium and enters runner, medium flows out runner and is communicated with the connection chamber that connecting media enters runner and medium outflow runner, butterfly plate is located in connection chamber, and butterfly plate is connected with valve shaft, the outer circumferential face of butterfly plate is provided with multi-layer sealed pad, it is characterized in that: between described butterfly plate and valve body, be provided with valve seat, between the inner peripheral surface of valve seat and butterfly plate, be inclined-plane sealing laminating, the outer circumferential face of valve seat and valve seal laminating, and be provided with Sealing between valve seat and valve body.
Adopt technique scheme, when butterfly valve is subject to reverse media pressure, multi-layer sealed pad is arranged on butterfly plate, butterfly plate is subject to its setting angle of pressure medium effect meeting can there is small distortion, and valve seat and valve body are split type, after valve seat is subject to pressure medium, its setting angle can change equally, valve seat is out of shape along with the amount of deformation of multi-layer sealed pad, valve seat is engaged completely with the multi-layer sealed pad on butterfly plate all the time, guarantee not depart between multi-layer sealed pad and valve seat, guaranteed the sealing of valve body, between valve seat and valve body, the setting of Sealing is in order to guarantee the sealability between valve seat and valve body.After arranging like this, when valve body bears two-way pressure, its sealability is all guaranteed.
The utility model is further set to: the outer circumferential face of valve seat is provided with at least one Sealing mounting groove, and described Sealing is installed in this mounting groove; An axial side of described valve seat is provided with the activity adjustment mechanism of conflicting with valve seat, and the axial opposite side of valve seat is provided with valve seat limiting board.
Wherein, activity adjustment mechanism includes the mounting plate being connected with valve body, the spring seat being connected with mounting plate and one end and spring seat is conflicted, the spring that the other end and valve seat are conflicted.
Adopt technique scheme, the setting of activity adjustment mechanism is in order to meet under different media, pressure and temp, and valve seat is implemented to regulate, and with this, guarantees the sealing between valve seat and valve body and butterfly plate.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the I portion enlarged diagram of Fig. 1;
Fig. 3 is the utility model embodiment 2 structural representation;
Fig. 4 is the utility model embodiment 3 structural representation.
Embodiment
A kind of bidirection press balance butterfly valve as shown in Figure 1, 2, includes valve body 1, butterfly plate 2 and valve shaft 3, and valve shaft 3 drives rotation by actuator, and actuator can be handle, also can be electric actuator.Valve body 1 is provided with medium and enters runner 11, medium outflow runner 12 and be communicated with the connection chamber 13 that connecting media enters runner 11 and medium outflow runner 12, butterfly plate 2 is located in connection chamber 13, and butterfly plate 2 is connected with valve shaft 3, the outer circumferential face of butterfly plate 2 is provided with multi-layer sealed pad 4, between butterfly plate 2 and valve body 1, be provided with valve seat 5, between the inner peripheral surface of valve seat 5 and butterfly plate 2, be inclined-plane sealing laminating (even if the faying surface between valve body 5 and butterfly plate 2 is adaptive inclined-plane), the outer circumferential face of valve seat 5 and valve body 1 sealing laminating, and be provided with Sealing 6 between valve seat 5 and valve body 1.In such scheme, when butterfly valve is subject to reverse media pressure, multi-layer sealed pad 4 is arranged on butterfly plate 2, butterfly plate 2 is subject to its setting angle of pressure medium effect meeting can there is small distortion, and valve seat 5 is split type with valve body 1, after valve seat 5 is subject to pressure medium, its setting angle can change equally, valve seat 5 is out of shape along with the amount of deformation of multi-layer sealed pad 4, valve seat 5 is engaged completely with the multi-layer sealed pad 4 on butterfly plate 2 all the time, guarantee not depart between multi-layer sealed pad 4 and valve seat 5, guaranteed the sealing of valve body 1, between valve seat 5 and valve body 1, the setting of Sealing 6 is in order to guarantee the sealability between valve seat 5 and valve body 1.After arranging like this, when valve body 1 bears two-way pressure, its sealability is all guaranteed.
In the utility model embodiment 2,3, the outer circumferential face of valve seat 5 is provided with at least one Sealing mounting groove 51, and Sealing 6 is installed in this mounting groove 51, and the seal 6 is seal ring; An axial side of valve seat 5 is provided with the activity adjustment mechanism 7 of conflicting with valve seat 5, and the axial opposite side of valve seat 5 is provided with valve seat limiting board 14.The setting of activity adjustment mechanism 7 is in order to meet under different media, pressure and temp, valve seat 5 is implemented to regulate, with this, guarantee the sealing between valve seat 5 and valve body 1 and butterfly plate 2, and the setting of valve seat limiting board 14 is stressed excessive and depart from valve body 1 in order to prevent valve seat 5.
As shown in 3, the activity adjustment mechanism 7 in the utility model embodiment 2 includes the mounting plate 71 being connected with valve body 1, the spring seat 72 being connected with mounting plate 71 and one end and spring seat 72 is conflicted, the spring 73 that the other end and valve seat 5 are conflicted.In use, the spring force of spring 73 is implemented to conflict to valve seat 5 all the time, and for different operating modes and state of temperature lower time, if the conflict power of valve seat 5 needs to regulate, and the spring of replaceable different elastic force.
As shown in Figure 4, the activity adjustment mechanism 7 in the utility model embodiment 3 includes the mounting blocks 74 being connected with valve body 1 and the adjusting bolt 75 of conflicting through mounting blocks 74 and valve seat 5.Adjusting bolt 74 can be implemented to regulate according to the needs of operating mode and state of temperature, with this, regulates the compress dynamics different to valve seat 5.
Claims (4)
1. a bidirection press balance butterfly valve, include valve body, butterfly plate and valve shaft, described valve body is provided with medium and enters runner, medium outflow runner and be communicated with the connection chamber that connecting media enters runner and medium outflow runner, butterfly plate is located in connection chamber, and butterfly plate is connected with valve shaft, the outer circumferential face of butterfly plate is provided with multi-layer sealed pad, it is characterized in that: between described butterfly plate and valve body, be provided with valve seat, between the inner peripheral surface of valve seat and butterfly plate, be inclined-plane sealing laminating, the outer circumferential face of valve seat and valve seal laminating, and be provided with Sealing between valve seat and valve body.
2. bidirection press balance butterfly valve according to claim 1, is characterized in that: the outer circumferential face of described valve seat is provided with at least one Sealing mounting groove, and described Sealing is installed in this mounting groove; An axial side of described valve seat is provided with the activity adjustment mechanism of conflicting with valve seat, and the axial opposite side of valve seat is provided with valve seat limiting board.
3. bidirection press balance butterfly valve according to claim 2, is characterized in that: described activity adjustment mechanism includes the mounting plate being connected with valve body, the spring seat being connected with mounting plate and one end and spring seat is conflicted the spring that the other end and valve seat are conflicted.
4. bidirection press balance butterfly valve according to claim 2, is characterized in that: described activity adjustment mechanism includes the mounting blocks being connected with valve body and passes mounting blocks and the adjusting bolt of valve seat conflict.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509201.5U CN203413139U (en) | 2013-08-19 | 2013-08-19 | Double-direction pressure balance butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509201.5U CN203413139U (en) | 2013-08-19 | 2013-08-19 | Double-direction pressure balance butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203413139U true CN203413139U (en) | 2014-01-29 |
Family
ID=49976028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320509201.5U Expired - Fee Related CN203413139U (en) | 2013-08-19 | 2013-08-19 | Double-direction pressure balance butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203413139U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315161A (en) * | 2014-10-16 | 2015-01-28 | 开封瑞科阀门有限公司 | Sealing ring and floating valve seat replaceable type ultralow temperature polytetrafluoroethylene sealed butterfly valve |
| CN113339530A (en) * | 2021-05-11 | 2021-09-03 | 超达阀门集团股份有限公司 | Three-eccentric high-temperature butterfly valve with bidirectional sealing function |
-
2013
- 2013-08-19 CN CN201320509201.5U patent/CN203413139U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315161A (en) * | 2014-10-16 | 2015-01-28 | 开封瑞科阀门有限公司 | Sealing ring and floating valve seat replaceable type ultralow temperature polytetrafluoroethylene sealed butterfly valve |
| CN104315161B (en) * | 2014-10-16 | 2017-05-17 | 开封瑞科阀门有限公司 | Ultralow temperature polytetrafluoroethylene sealed butterfly valve with replaceable sealing ring and floating valve seat |
| CN113339530A (en) * | 2021-05-11 | 2021-09-03 | 超达阀门集团股份有限公司 | Three-eccentric high-temperature butterfly valve with bidirectional sealing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20160819 |