CN206555466U - A kind of fluorine lining butterfly valve - Google Patents
A kind of fluorine lining butterfly valve Download PDFInfo
- Publication number
- CN206555466U CN206555466U CN201720255794.5U CN201720255794U CN206555466U CN 206555466 U CN206555466 U CN 206555466U CN 201720255794 U CN201720255794 U CN 201720255794U CN 206555466 U CN206555466 U CN 206555466U
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- CN
- China
- Prior art keywords
- seal
- fluorine
- lined layer
- valve body
- butterfly valve
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Abstract
A kind of fluorine lining butterfly valve.Solve the problem of existing butterfly plate seals unreliable and short service life.It includes butterfly plate and valve body, described butterfly plate is provided with rotating shaft, in described rotating shaft insertion valve body, the first Fluorine-lined layer is arranged with outside described butterfly plate, the second Fluorine-lined layer is arranged with outside described valve body, described valve body is provided with storage tank, first seal and second seal are provided with described storage tank, described first seal and second seal is tapered, described first seal fits with valve body, the outer surface of described second seal respectively with the first Fluorine-lined layer, the inner surface of second Fluorine-lined layer fits, described first seal and second seal is engaged to form sealing pair, described sealing pair and shaft centerline formation angle a, described angle a is more than 20 degree and is less than 35 degree.The utility model also has simple in construction, easy to assembly, reliable in action, the advantages of service life is long.
Description
Technical field
The utility model is related to a kind of valve, and in particular to a kind of fluorine lining butterfly valve.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in construction, and the switch available for low pressure pipeline medium is controlled.Butterfly
Valve refers to that closure member flap or butterfly plate are disk, a kind of valve of open and close is reached around valve shaft rotation, valve can be used for
The all kinds fluids such as the empty gas and water of control, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium
Flowing, it is main on pipeline to play cut-out and throttling action.It is rotten in conveyings such as weight chemical industry, large chemical fertilizer, petroleum and petrochemical industry, smelting iron and steels
The occasion of corrosion fluid media (medium), metal valve are because can be corroded, it is clear that can not use, therefore in this kind of occasion, generally need
Use corrosion-resistant plastic lining valve.Existing Butterfly valve with liner causes at body base due to being sealed corrosion barrier
Product hermeticity can be poor, and existing common practice is to increase a sealing shroud or seal, but the seal due to
Angle and reasons in structure are set so that axially（Refer to the axial direction of butterfly valve rotating shaft, similarly hereinafter）It is not high with radial pressure, so that
Product sealing is unreliable, and life test can only be to 10,000 times or so, and product will have leakage, and product service life is short.
The content of the invention
To solve the problem of existing butterfly plate seals unreliable and short service life in background technology, the utility model provides one
Plant fluorine lining butterfly valve.
The technical solution of the utility model is：A kind of fluorine lining butterfly valve, including butterfly plate and valve body, described butterfly plate, which is provided with, to be turned
In axle, described rotating shaft insertion valve body, it is arranged with outside described butterfly plate outside the first Fluorine-lined layer, described valve body and is arranged with the second lining
Fluorine layer, described valve body, which is provided with storage tank, described storage tank, is provided with first seal and second seal, and described the
One seal and second seal are tapered, and described first seal fits with valve body, described second seal point
Outer surface, the inner surface of the second Fluorine-lined layer not with the first Fluorine-lined layer fit, described first seal and second seal
It is engaged to form sealing pair, described sealing pair is more than 20 degree and is less than 35 with shaft centerline formation angle a, described angle a
Degree.
As a kind of improvement of the present utility model, described first seal is metal seal, the second described sealing
Part is corrosion-resistant seal.
As further improvement of the utility model, described second seal is provided with least two sealing rings, described
Sealing ring respectively with the first Fluorine-lined layer outer surface, the second Fluorine-lined layer inner surface fit.
As further improvement of the utility model, described second seal is provided with three sealing rings, two of which
Sealing ring respectively with the first Fluorine-lined layer outer surface, the second Fluorine-lined layer inner surface fit, another sealing ring be located at first
The junction of Fluorine-lined layer and the second Fluorine-lined layer.
As further improvement of the utility model, elastic component is provided with described storage tank, described elastic component and the
One seal is affixed the movement tendency merged with driving first seal close to second seal.
As further improvement of the utility model, described elastic component has four.
As further improvement of the utility model, described elastic component is disc spring.
As further improvement of the utility model, described angle a is more than 27 degree and is less than 32 degree.
As further improvement of the utility model, described angle a is 30 degree.
The beneficial effects of the utility model are, there is provided first seal and second seal, pass through the structure of seal
Set with angle so that first seal and second seal can provide enough axially and radially pressure, it is ensured that butterfly plate and valve
Body junction will not be leaked, good seal performance, and be carried out continuously 50,000 life tests and do not leaked, and substantially increase making for product
With the life-span, the utility model also has simple in construction, easy to assembly, reliable in action, the advantages of service life is long.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Accompanying drawing 2 is the structure enlarged diagram at I in accompanying drawing 1.
In figure, 1, butterfly plate；11st, rotating shaft；2nd, valve body；21st, storage tank；3rd, the first Fluorine-lined layer；4th, the second Fluorine-lined layer；5th, first
Seal；6th, second seal；7th, sealing pair；8th, sealing ring；9th, elastic component.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings：
As shown in Fig. 1 combinations Fig. 2, a kind of fluorine lining butterfly valve, including butterfly plate 1 and valve body 2, described butterfly plate 1 is provided with rotating shaft
11, described rotating shaft 11 is inserted in valve body 2, is arranged with outside the first Fluorine-lined layer 3, described valve body 2 and is arranged with outside described butterfly plate 1
Second Fluorine-lined layer 4, described valve body 2 is provided with close provided with first seal 5 and second in storage tank 21, described storage tank 21
Sealing 6, described first seal 5 and second seal 6 is tapered, and described first seal 5 fits with valve body 2,
Described second seal 6 outer surface respectively with the first Fluorine-lined layer 3, the inner surface of the second Fluorine-lined layer 4 fit, and described the
One seal 5 and second seal 6 are engaged to form sealing pair 7, the described sealing pair 7 and center line of rotating shaft 11 formation angle a,
Described angle a is more than 20 degree and is less than 35 degree.The utility model is provided with first seal and second seal, passes through seal
Structure and angle set so that first seal and second seal can provide enough axially and radially pressure, it is ensured that butterfly
Plate will not be leaked with valve body junction, good seal performance, and be carried out continuously 50,000 life tests and do not leaked, and substantially increase production
The service life of product, the utility model also has simple in construction, easy to assembly, reliable in action, the advantages of service life is long.
Described first seal 5 is metal seal, and described second seal 6 is corrosion-resistant seal.Using gold
Category seal can improve the elevated-temperature seal performance of product, and the decay resistance of product can be improved using corrosion-resistant seal,
Both can enable product hermeticity good at combination, and range of fit is wide.Described second seal can use PTFE.
Described second seal 6 is provided with least two sealing rings 8, described sealing ring 8 respectively with the first Fluorine-lined layer 3
Outer surface, the second Fluorine-lined layer 4 inner surface fit.Specifically, described second seal 6 is provided with three sealing rings
8, two of which sealing ring 8 respectively with the first Fluorine-lined layer 3 outer surface, the second Fluorine-lined layer 4 inner surface fit, another is close
Seal 8 is located at the junction of the first Fluorine-lined layer 3 and the second Fluorine-lined layer 4.There is provided three sealing rings cause product sealed reliable, it is situated between
Matter will not be leaked from the junction of second seal so that product sealed reliable.
Elastic component 9 is provided with described storage tank 21, described elastic component 9 is affixed with first seal 5 to be merged with drive
Movement tendency of the dynamic first seal 5 close to second seal 6.Specifically, described elastic component 9 has four.More specifically
Say, described elastic component 9 is disc spring.The setting of disc spring produces pressure axially and radially to first seal, so as to pass through the
Second seal is pressed the Fluorine-lined of phase first layer 3 and the second Fluorine-lined layer 4 by one seal so that seal sealed reliable, it is not easy to let out
Leakage, good sealing effect, and substantially increase the service life of product.
Described angle a is more than 27 degree and is less than 32 degree.Specifically, described angle a is 30 degree.Pass through the change of angle
So that more axial compressive forces that first seal is produced, so that second seal is reliable with rotating shaft sealing, it is to avoid leakage,
Increase the radial direction precompression of product by four disc springs, it is to avoid medium is leaked from the second Fluorine-lined layer.
Every technical staff's notice：Although the utility model is described according to above-mentioned embodiment, this
The invention thought of utility model is not limited to that utility model, and the repacking of any utilization inventive concept will all include this specially
In sharp scope of patent protection.
Claims (9)
1. a kind of fluorine lining butterfly valve, including butterfly plate（1）And valve body（2）, it is characterised in that:Described butterfly plate（1）It is provided with rotating shaft
（11）, described rotating shaft（11）Insert valve body（2）Interior, described butterfly plate（1）It is outer to be arranged with the first Fluorine-lined layer（3）, described valve
Body（2）It is outer to be arranged with the second Fluorine-lined layer（4）, described valve body（2）It is provided with storage tank（21）, described storage tank（21）Inside set
There is first seal（5）And second seal（6）, described first seal（5）And second seal（6）It is tapered, institute
The first seal stated（5）With valve body（2）Fit, described second seal（6）Respectively with the first Fluorine-lined layer（3）Appearance
Face, the second Fluorine-lined layer（4）Inner surface fit, described first seal（5）And second seal（6）It is engaged to form close
Envelope is secondary（7）, described sealing pair（7）With rotating shaft（11）Center line formation angle a, described angle a are more than 20 degree less than 35 degree.
2. a kind of fluorine lining butterfly valve according to claim 1, it is characterised in that described first seal（5）For metal sealing
Part, described second seal（6）For corrosion-resistant seal.
3. a kind of fluorine lining butterfly valve according to claim 1, it is characterised in that described second seal（6）Provided with least
Two sealing rings（8）, described sealing ring（8）Respectively with the first Fluorine-lined layer（3）Outer surface, the second Fluorine-lined layer（4）Interior table
Face fits.
4. a kind of fluorine lining butterfly valve according to claim 3, it is characterised in that described second seal（6）It is provided with three
Sealing ring（8）, two of which sealing ring（8）Respectively with the first Fluorine-lined layer（3）Outer surface, the second Fluorine-lined layer（4）Inner surface
Fit, another sealing ring（8）Located at the first Fluorine-lined layer（3）With the second Fluorine-lined layer（4）Junction.
5. a kind of fluorine lining butterfly valve according to claim 1, it is characterised in that described storage tank（21）It is interior to be provided with elastic component
（9）, described elastic component（9）With first seal（5）Being affixed merging has driving first seal（5）Close to second seal
（6）Movement tendency.
6. a kind of fluorine lining butterfly valve according to claim 5, it is characterised in that described elastic component（9）There are four.
7. a kind of fluorine lining butterfly valve according to claim 5, it is characterised in that described elastic component（9）For disc spring.
8. a kind of fluorine lining butterfly valve according to claim 1, it is characterised in that described angle a is more than 27 degree and is less than 32 degree.
9. a kind of fluorine lining butterfly valve according to claim 8, it is characterised in that described angle a is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255794.5U CN206555466U (en) | 2017-03-16 | 2017-03-16 | A kind of fluorine lining butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255794.5U CN206555466U (en) | 2017-03-16 | 2017-03-16 | A kind of fluorine lining butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206555466U true CN206555466U (en) | 2017-10-13 |
Family
ID=60365802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720255794.5U Expired - Fee Related CN206555466U (en) | 2017-03-16 | 2017-03-16 | A kind of fluorine lining butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206555466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081193A (en) * | 2019-04-30 | 2019-08-02 | 浙江东信阀门有限公司 | A kind of lining plastic regulating valve |
-
2017
- 2017-03-16 CN CN201720255794.5U patent/CN206555466U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081193A (en) * | 2019-04-30 | 2019-08-02 | 浙江东信阀门有限公司 | A kind of lining plastic regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |