CN206257292U - A kind of vacuum butterfly valve - Google Patents
A kind of vacuum butterfly valve Download PDFInfo
- Publication number
- CN206257292U CN206257292U CN201621391816.2U CN201621391816U CN206257292U CN 206257292 U CN206257292 U CN 206257292U CN 201621391816 U CN201621391816 U CN 201621391816U CN 206257292 U CN206257292 U CN 206257292U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- ring
- valve seat
- sealing ring
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of vacuum butterfly valve, with valve body, there is valve seat in valve body, valve shaft is housed on valve body, butterfly plate is housed on the valve shaft in valve body, the sealing ring being engaged with the valve seat is equipped with by trim ring on butterfly plate, also include the drive device for driving the valve shaft to rotate, the sealing ring is made up of left and right two sections in the rubber ring and the steel ring between left and right rubber ring of inverted L-shaped, when sealing ring is engaged with the valve seat, the end face of valve seat, between the opposed inner walls of left and right rubber ring and the outer wall of steel ring annular compartment is surrounded by；The top and bottom of the valve body offer through valve seat and the upper osculum and lower water injection hole that are connected with the annular compartment respectively, and upper osculum and lower water injection hole are located at the aperture of valve outer wall and are respectively provided with pipe joint.The annular compartment is filled with water when the utility model is used, and forms tight water-stop, and the steam or gas that can effectively intercept side in vacuum line overflow to opposite side.
Description
Technical field
The utility model is related to a kind of butterfly valve, concretely relates to a kind of vacuum butterfly valve.
Background technology
It is used for the industries such as electric power in the prior art, medium is to be used as circulation or cut-off on the vacuum line of steam or air
Vacuum butterfly valve, valve body is mainly included in structure, there is in valve body valve seat, valve shaft, the valve shaft in valve body are housed on valve body
It is upper that butterfly plate is housed, the sealing ring being engaged with the valve seat is equipped with by trim ring on butterfly plate, also including for driving the valve shaft
The drive device of rotation.
Above-mentioned vacuum butterfly valve of the prior art, is generally the rubber seal that section is T-shaped loaded on the sealing ring on butterfly plate,
Often occur poorly sealed, leakage phenomenon between T-shaped sealing ring and valve seat in vacuum line, cause to be mixed into sky in vacuum line
Other gases such as gas, so that medium is contaminated.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of vacuum butterfly valve with good seal performance, this practicality
New vacuum butterfly valve can effectively intercept side in vacuum line steam or gas when being closed overflows to opposite side
Go out.
In order to solve the above technical problems, a kind of vacuum butterfly valve of the utility model, with valve body, has valve seat, valve in valve body
Valve shaft is housed on body, butterfly plate is housed on the valve shaft in valve body, be equipped with what is be engaged with the valve seat by trim ring on butterfly plate
Sealing ring, also including the drive device for driving the valve shaft to rotate, the sealing ring is in inverted L-shaped by left and right two sections
Rubber ring and steel ring between left and right rubber ring constitute, when sealing ring is engaged with the valve seat, the end of valve seat
Annular compartment is surrounded by between face, the opposed inner walls of left and right rubber ring and the outer wall of steel ring；The top and bottom of the valve body point
Do not offer through valve seat and the upper osculum and lower water injection hole that are connected with the annular compartment, upper osculum and lower water injection hole
Pipe joint is respectively provided with the aperture of valve outer wall.
Using the vacuum butterfly valve of said structure, it is located at the upper osculum and lower water injection hole valve outer wall aperture when using
Pipe joint connect flowing line and waterflood-transmission line respectively, through waterflood-transmission line inject water can be full of the annular chamber
Room, forms tight water-stop, then discharged by flowing line.Water filling and discharge cycle carry out being capable of achieving the tight of sealing ring and valve seat
The media such as sealing, spacer medium, and air by seepage are effectively discharged from flowing line, can effectively intercept vacuum line
The steam or gas of middle side overflow to opposite side.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the sealing structure between butterfly plate and valve seat in vacuum butterfly valve in the prior art, loaded on close on butterfly plate
Seal is the T-shaped rubber seal in section.
Fig. 2 is a kind of schematic front view of vacuum butterfly valve of the utility model.
Fig. 3 is the schematic top plan view of Fig. 2.
Fig. 4 is the section view enlarged diagram of the line A-A along Fig. 2.
Fig. 5 is the section view enlarged diagram of the line B-B along Fig. 2.
Specific embodiment
Referring first to Fig. 1, Fig. 1 shows the sealing structure between butterfly plate and valve seat in vacuum butterfly valve in the prior art, dress
In the sealing ring on butterfly plate be the T-shaped rubber seal 20 in section.
Referring back to Fig. 2-Fig. 5, vacuum butterfly valve of the present utility model, with valve body 1, there is valve seat 2, valve body 1 in valve body 1
It is upper that valve shaft 3 is housed, butterfly plate 4 is housed on the valve shaft 3 in valve body 1, it is equipped with by trim ring 5 on butterfly plate 4 and is matched with the valve seat 2
The sealing ring 6 of conjunction, also including the drive device 7 for driving the valve shaft 3 to rotate, the sealing ring 6 is by left and right two sections
Constituted in the rubber ring 61,63 and the steel ring 62 between left and right rubber ring of inverted L-shaped, when sealing ring 6 and the phase of the valve seat 2
During cooperation, the end face of valve seat 2, between the opposed inner walls of left and right rubber ring 61,63 and the outer wall of steel ring 62 annular compartment is surrounded by
60；The top and bottom of the valve body 1 offer through valve seat 2 and the upper osculum that is connected with the annular compartment 60 respectively
11 and lower water injection hole 12, upper osculum 11 and lower water injection hole 12 are located at and are respectively provided with pipeline at the aperture of the outer wall of valve body 1 and connect
First 13.
Claims (1)
1. a kind of vacuum butterfly valve, with valve body（1）, valve body（1）It is interior with valve seat（2）, valve body（1）It is upper that valve shaft is housed（3）, it is located at
Valve body（1）Interior valve shaft（3）It is upper that butterfly plate is housed（4）, butterfly plate（4）It is upper to pass through trim ring（5）Equipped with the valve seat（2）It is engaged
Sealing ring（6）, also including for driving the valve shaft（3）The drive device of rotation（7）, it is characterised in that：The sealing ring（6）
It is in the rubber ring of inverted L-shaped by left and right two sections（61、63）And the steel ring between left and right rubber ring（62）Constitute, when close
Seal（6）With the valve seat（2）When being engaged, valve seat（2）End face, left and right rubber ring（61、63）Opposed inner walls and steel ring
（62）Outer wall between be surrounded by annular compartment（60）；The valve body（1）Top and bottom offer respectively through valve seat（2）
And with the annular compartment（60）The upper osculum being connected（11）With lower water injection hole（12）, upper osculum（11）With lower water injection hole
（12）Positioned at valve body（1）Pipe joint is respectively provided with the aperture of outer wall（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621391816.2U CN206257292U (en) | 2016-12-19 | 2016-12-19 | A kind of vacuum butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621391816.2U CN206257292U (en) | 2016-12-19 | 2016-12-19 | A kind of vacuum butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257292U true CN206257292U (en) | 2017-06-16 |
Family
ID=59030017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621391816.2U Expired - Fee Related CN206257292U (en) | 2016-12-19 | 2016-12-19 | A kind of vacuum butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206257292U (en) |
-
2016
- 2016-12-19 CN CN201621391816.2U patent/CN206257292U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20171219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |