CN205439449U - Nitrogen seals compound film sheet of valve - Google Patents
Nitrogen seals compound film sheet of valve Download PDFInfo
- Publication number
- CN205439449U CN205439449U CN201620145410.XU CN201620145410U CN205439449U CN 205439449 U CN205439449 U CN 205439449U CN 201620145410 U CN201620145410 U CN 201620145410U CN 205439449 U CN205439449 U CN 205439449U
- Authority
- CN
- China
- Prior art keywords
- membrane body
- film sheet
- compound film
- pad
- lower floor
- 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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- Details Of Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model provides a nitrogen seals compound film sheet of valve is disclosed, including the membrane body, the membrane body includes upper strata and lower floor, the membrane body is circular, membrane body center is equipped with big through -hole, it has a plurality of little through -holes to surround big through -hole evenly distributed on the membrane body, the upside on upper strata is equipped with the annular gasket I of circle, the downside of lower floor is equipped with the gasket II that big or small shape is equal with gasket I. This compound film sheet adopts bilayer structure, and the upper strata has good corrosion resistance, and the lower floor has nice pliability for the compound film sheet combines advantage between them, have enough anti -corrosion performance's the condition under, guaranteed the pliability, ensured the performance of valve, pressure in the control storage tank that can be more accurate.
Description
Technical field
This utility model relates to a kind of diaphragm, specifically refers to a kind of compound film sheet for nitrogen envelope valve.
Background technology
At present, many diaphragms appoint the monofilm chip architecture so using homogenous material to make, and the performance of this kind of diaphragm is the most poor, and service life and using effect are the most less desirable.It is particularly used on the equipment bigger to diaphragm expendable such as nitrogen envelope valve.
Summary of the invention
The purpose of this utility model is to provide for the compound film sheet of a kind of nitrogen envelope valve, and this diaphragm has good corrosion resistance and pliability.
In order to achieve the above object, this utility model provides following technical scheme: a kind of nitrogen seals the compound film sheet of valve, including membrane body, described membrane body includes the upper and lower, described membrane body is circular, and described membrane body center is provided with large through-hole, and described membrane body is evenly distributed with multiple small through hole around large through-hole, the upside on described upper strata is provided with the pad I of annular, and the downside of described lower floor is provided with the pad II that size shape is equal with pad I.
Optimizing further, described upper strata is anticorrosive coat, and described lower floor is flexible layer.
Optimizing further, described upper strata uses polytetrafluoroethylmaterial material, and described lower floor uses nitrile rubber.
Optimizing further, the width of described pad I and pad II is more than the diameter of small through hole, and pad I and pad II is the most corresponding with small through hole position on membrane body.
The beneficial effects of the utility model: this compound film sheet uses double-decker, upper strata has good corrosion resistance, lower floor has good pliability, make the advantage that compound film sheet combines both, in the case of there is enough corrosion resistances, ensure that pliability, it is ensured that the performance of valve, the pressure in storage tank can be controlled more accurately.
Accompanying drawing explanation
Accompanying drawing 1 is side surface direction partial structurtes schematic diagram of the present utility model.
Accompanying drawing 2 is frontal partial structurtes schematic diagram of the present utility model.
Accompanying drawing 3 is Y portion enlarged drawing of the present utility model.
2, membrane body；2, large through-hole；3, small through hole；4, pad I；5, pad II；1-1, upper strata；1-2, lower floor.
Detailed description of the invention
Below we combine accompanying drawing to a kind of nitrogen described in the utility model envelope valve compound film sheet be described further.
If Fig. 1 is to as shown in 3, a kind of compound film sheet of the nitrogen envelope valve of the present embodiment, including membrane body 1, described membrane body 1 includes upper strata 1-1 and lower floor 1-2, described membrane body 1 is circular, and described membrane body 1 center is provided with large through-hole 2, and described membrane body 1 is evenly distributed with multiple small through hole 3 around large through-hole 2, the upside of described upper strata 1-1 is provided with the pad I4 of annular, and the downside of described lower floor 1-2 is provided with the pad II5 that size shape is equal with pad I4.Described upper strata 1-1 is anticorrosive coat, and described lower floor 1-2 is flexible layer.This compound film sheet combines upper strata 1-1 and the different qualities of lower floor 1-2 so that in the case of compound film sheet has good corrosion, it is ensured that suppleness, it is ensured that valve can control the pressure in storage tank the most accurately.
In the present embodiment, described upper strata 1-1 uses polytetrafluoroethylmaterial material, and described lower floor 1-2 uses nitrile rubber.Other can be used to have the material of similar effect.
In the present embodiment, the width of described pad I4 and pad II5 is more than the diameter of small through hole 3, and pad I4 and pad II5 is the most corresponding with the small through hole 3 position on membrane body 1.Prevent small through hole 3 damaged, extend the service life of diaphragm.
Protection domain of the present utility model is not limited to above example and conversion thereof.
Claims (4)
1. the compound film sheet of a nitrogen envelope valve, it is characterized in that: include membrane body (1), described membrane body (1) includes upper strata (1-1) and lower floor (1-2), described membrane body (1) is circular, described membrane body (1) center is provided with large through-hole (2), described membrane body (1) is upper is evenly distributed with multiple small through hole (3) around large through-hole (2), the upside on described upper strata (1-1) is provided with the pad I(4 of annular), the downside of described lower floor (1-2) is provided with size shape and pad I(4) equal pad II(5).
The compound film sheet of a kind of nitrogen the most according to claim 1 envelope valve, it is characterised in that: described upper strata (1-1) is anticorrosive coat, and described lower floor (1-2) is flexible layer.
The compound film sheet of a kind of nitrogen the most according to claim 1 and 2 envelope valve, it is characterised in that: described upper strata (1-1) uses polytetrafluoroethylmaterial material, and described lower floor (1-2) uses nitrile rubber.
The compound film sheet of a kind of nitrogen the most according to claim 1 envelope valve, it is characterized in that: described pad I(4) and pad II(5) width more than the diameter of small through hole (3), and pad I(4) and pad II(5) the most corresponding with the small through hole (3) position on membrane body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620145410.XU CN205439449U (en) | 2016-02-27 | 2016-02-27 | Nitrogen seals compound film sheet of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620145410.XU CN205439449U (en) | 2016-02-27 | 2016-02-27 | Nitrogen seals compound film sheet of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205439449U true CN205439449U (en) | 2016-08-10 |
Family
ID=56582488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620145410.XU Expired - Fee Related CN205439449U (en) | 2016-02-27 | 2016-02-27 | Nitrogen seals compound film sheet of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205439449U (en) |
-
2016
- 2016-02-27 CN CN201620145410.XU patent/CN205439449U/en not_active Expired - Fee Related
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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: 20160810 Termination date: 20180227 |