CN202017788U - Diaphragm valve for nuclear power universal joint - Google Patents
Diaphragm valve for nuclear power universal joint Download PDFInfo
- Publication number
- CN202017788U CN202017788U CN2011201483608U CN201120148360U CN202017788U CN 202017788 U CN202017788 U CN 202017788U CN 2011201483608 U CN2011201483608 U CN 2011201483608U CN 201120148360 U CN201120148360 U CN 201120148360U CN 202017788 U CN202017788 U CN 202017788U
- Authority
- CN
- China
- Prior art keywords
- valve
- universal joint
- nuclear power
- diaphragm
- nut
- 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 - Lifetime
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Abstract
The utility model relates to a diaphragm valve for a nuclear power universal joint. The diaphragm valve mainly comprises a valve body, a valve cover, a valve rod, a valve rod nut, a diaphragm, a diaphragm nut, a valve flap and a universal joint bushing; the valve cover is arranged on the valve body; the valve body is connected with the diaphragm; one end of the valve rod is connected with the diaphragm via the diaphragm nut, and the other end of the valve rod is connected with the universal joint bushing via the valve rod nut; and the valve flap is connected with the valve rod. Compared with the prior art, the diaphragm valve for the nuclear power universal joint has the advantages of flexible damage resistance, fatigue resistance and the like.
Description
Technical field
The utility model relates to a kind of valve, especially relates to a kind of nuclear power universal joint membrane valve.
Background technique
Membrane valve be with barrier film as open-shut device, drive valve rod by handwheel and move up and down along axis, driver part and medium are in isolation, major function is the medium that switches on or off in the pipeline, the start-stop device that control media is mobile.
Because barrier film is the vital part of the keying and the sealing of membrane valve, the quality of its quality directly has influence on the sealability and the working life of valve, therefore, the structure of diaphragm of rubber and material will and play crucial effects working life to the sealability of membrane valve.
At present, it is easy to wear, aging that many membrane valves exist barrier film, and many drawbacks such as valve run, drip, leak happen occasionally.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of stiffness breakage, fatigue proof nuclear power universal joint membrane valve for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of nuclear power universal joint membrane valve, it is characterized in that, this membrane valve mainly is made up of valve body, valve gap, valve rod, Stem Mut, barrier film, diaphragm nut, flap, joint boot, described valve gap is arranged on the valve body, described valve body connects barrier film, described valve rod one end connects barrier film by diaphragm nut, and the other end connects joint boot by Stem Mut, and described flap connects valve rod.
Described flap connects valve rod by bearing pin, and bearing pin is provided with the pin that prevents that it from coming off.
Described joint boot is fastenedly connected by screw and transmission nut and is integral, and transmission nut connects Stem Mut, and constitutes kinematic pair with the Stem Mut screw thread.
Described joint boot is provided with the screw that prevents that it from axially coming off.
Described valve rod napex is provided with the locking nut that prevents Stem Mut and handwheel axial float.
Be provided with O-ring seals and pad between described Stem Mut and the valve gap.
Described valve gap is provided with the leak detection bolt.
Compared with prior art, the utility model nuclear power universal joint membrane valve is a kind of new types of diaphragm valve, valve body is become stiffness breakage and fatigue performance with diaphragm design, make Korrosionsmedium and all driver parts in the runner be in the state of isolating fully, and increased the leakage-preventing measure of multiple tracks from each position that may be easy to generate the leak point, thereby thoroughly stopped the phenomenons such as " run, drip, leak " of common valve, so has special good decay resistance; Slim and graceful in the operation, rapid, convenient, smooth, be widely used on the domestic and international nuclear power projects.
Its biggest advantage can be carried out remote manually-operable valve by connecting rod exactly, has avoided the influence of working environment to the human body that caused, has satisfied under the various bad working environments conditions, can be with valve opening and closing.
Description of drawings
Fig. 1 partly cuts open figure for the utility model nuclear power universal joint membrane valve.
Among the figure: 1-barrier film, 2-screw, 3-diaphragm nut, 4-bearing pin, 5-pin, 6-flap, 7-valve rod, 8-Stem Mut, 9-pad, 10-O shape sealing shape circle, 11-transmission nut, 12-screw, 13-locking nut, 14-joint boot, 15-valve gap, 16-packing ring, 17-leak detection bolt, 18-bolt, 19-packing ring, 20-packing ring, 21-valve body.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of nuclear power universal joint membrane valve, this membrane valve is mainly by valve body 21, valve gap 15, valve rod 7, Stem Mut 8, barrier film 1, diaphragm nut 3, flap 6, joint boot 14 is formed, described valve gap 15 is arranged on the valve body 21, described valve body 21 connects barrier film 1, valve gap 15, connect by bolt 18 between valve body 21 and the barrier film 1, bolt 18 upper ends and valve gap 15 joints are provided with packing ring 19, be used for increasing bolt, the moment of nut thread width of cloth locking, lower end and valve body 21 joints are provided with nut 20, nut 20 locking valve bodies 21 and barrier film 1, the connection of valve gap 15, described valve rod 7 is arranged in the cavity of valve gap and valve body composition, the one end connects barrier film 1 by diaphragm nut 3, the other end connects joint boot 14 by Stem Mut 8, barrier film 1 connects diaphragm nut 3 by screw 2, and described flap 6 connects valve rod 7 by bearing pin 4, and bearing pin 4 is provided with and prevents its pin that comes off 5.Described valve rod 7 tops are provided with the Stem Mut 8 that constitutes the kinematic pair parts with threaded stem, valve rod 7 tops are provided with the locking nut 13 that prevents Stem Mut 8 and handwheel axial float, be provided with pad 9 and O-ring seals 10 between Stem Mut 8 and the valve gap 15, pad 9 can reduce the friction between Stem Mut 8 and valve gap 15, valve gap 15 and the handwheel, when O shape sealing shape circle 10 can prevent that barrier film contingency from damaging, medium was from the leakage of valve gap upper-end surface.
Described joint boot 14 is fastenedly connected by screw and transmission nut 11 and is integral, and transmission nut 11 connects Stem Mut 8, and constitutes kinematic pair with the Stem Mut screw thread.Joint boot 14 is provided with and prevents its screw that axially comes off 12.
Described valve gap 15 is provided with leak detection bolt 17, is provided with between valve gap and the bolt 17 of hunting leak to prevent the seal washer 16 revealed.
Claims (7)
1. nuclear power universal joint membrane valve, it is characterized in that, this membrane valve mainly is made up of valve body, valve gap, valve rod, Stem Mut, barrier film, diaphragm nut, flap, joint boot, described valve gap is arranged on the valve body, described valve body connects barrier film, described valve rod one end connects barrier film by diaphragm nut, and the other end connects joint boot by Stem Mut, and described flap connects valve rod.
2. a kind of nuclear power universal joint membrane valve according to claim 1 is characterized in that described flap connects valve rod by bearing pin, and bearing pin is provided with the pin that prevents that it from coming off.
3. a kind of nuclear power universal joint membrane valve according to claim 1 is characterized in that described joint boot is fastenedly connected by screw and transmission nut and is integral, and transmission nut connects Stem Mut, and constitutes kinematic pair with the Stem Mut screw thread.
4. a kind of nuclear power universal joint membrane valve according to claim 1 is characterized in that described joint boot is provided with the screw that prevents that it from axially coming off.
5. a kind of nuclear power universal joint membrane valve according to claim 1 is characterized in that described valve rod top is provided with the locking nut that prevents Stem Mut and handwheel axial float.
6. a kind of nuclear power universal joint membrane valve according to claim 1 is characterized in that, is provided with O-ring seals and pad between described Stem Mut and the valve gap.
7. a kind of nuclear power universal joint membrane valve according to claim 1 is characterized in that described valve gap is provided with the leak detection bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201483608U CN202017788U (en) | 2011-05-11 | 2011-05-11 | Diaphragm valve for nuclear power universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201483608U CN202017788U (en) | 2011-05-11 | 2011-05-11 | Diaphragm valve for nuclear power universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202017788U true CN202017788U (en) | 2011-10-26 |
Family
ID=44811458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201483608U Expired - Lifetime CN202017788U (en) | 2011-05-11 | 2011-05-11 | Diaphragm valve for nuclear power universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202017788U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240537A (en) * | 2015-11-16 | 2016-01-13 | 欧拉姆阀门科技有限公司 | Universal joint connecting shaft driving device special for valve |
| CN106870761A (en) * | 2017-04-17 | 2017-06-20 | 上海阀门五厂有限公司 | It is a kind of reduce in flange fastener screw-down torque new types of diaphragm |
-
2011
- 2011-05-11 CN CN2011201483608U patent/CN202017788U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240537A (en) * | 2015-11-16 | 2016-01-13 | 欧拉姆阀门科技有限公司 | Universal joint connecting shaft driving device special for valve |
| CN106870761A (en) * | 2017-04-17 | 2017-06-20 | 上海阀门五厂有限公司 | It is a kind of reduce in flange fastener screw-down torque new types of diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |
|
| CX01 | Expiry of patent term |