CN202109023U - Nuclear power direct type diaphragm valve - Google Patents
Nuclear power direct type diaphragm valve Download PDFInfo
- Publication number
- CN202109023U CN202109023U CN2011201624790U CN201120162479U CN202109023U CN 202109023 U CN202109023 U CN 202109023U CN 2011201624790 U CN2011201624790 U CN 2011201624790U CN 201120162479 U CN201120162479 U CN 201120162479U CN 202109023 U CN202109023 U CN 202109023U
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- China
- Prior art keywords
- valve
- nuclear power
- valve gap
- rod
- valve rod
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- 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 nuclear power direct type diaphragm valve, comprising a valve body (1), a diaphragm (2), a valve flap (3), a valve cover (4), a valve rod (7), an indication rod (9), a hand wheel (13) and a guide plate (15), wherein the valve body (1) is connected with the valve cover (4) to form a space for housing the valve flap (3) and the valve rod (7), the diaphragm (2) is arranged on the connection position of the valve body (1) and the valve cover (4), the lower end of the valve rod (7) is connected with the diaphragm (2) by the valve flap (3), the upper end of the valve rod (7) is connected with the hand wheel, the guide plate (15) is fixed on the valve rod (7), the upper end of the indication rod (9) is fixed on the guide plate (15) and the lower end of the indication rod (9) is fixedly connected with the valve cover (4). Compared with the prior technology, the defects of the general valve such as 'run, emit, drip, leak' are thoroughly stopped.
Description
Technical field
The utility model relates to a kind of valve, especially relates to the straight-through membrane valve of a kind of nuclear power.
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.
The model utility content
The purpose of the utility model is exactly to provide a kind of nuclear power to lead directly to membrane valve for the defective that overcomes above-mentioned existing technology existence.
The purpose of the utility model can realize through following technological scheme:
A kind of nuclear power leads directly to membrane valve, it is characterized in that, comprises valve body 1, barrier film 2, flap 3, valve gap 4, valve rod 7, indicating arm 9, handwheel 13, guide plate 15; Described valve body 1 is connected the back and forms the space that holds flap 3, valve rod 7 with valve gap 4; Described barrier film 2 is located at the joint of valve body 1 and valve gap 4; Described valve rod 7 lower ends are connected with barrier film 2 through flap 3, and described valve rod 7 upper ends are connected with handwheel 13, and described guide plate 15 is fixed on the valve rod 7; Described indicating arm 9 upper ends are fixed on the guide plate 15, and described indicating arm 9 lower ends are fixedly connected with valve gap 4.
Described valve rod 7 is provided with Stem Mut 5.
Described indicating arm 9 lower ends are fixedly connected with valve gap 4 through indicating arm nut 6.
The contacting point of described valve gap 4 upper ends and valve rod 7 is provided with O-ring seals 8.
Described valve rod 7 upper ends are connected with handwheel 13 through threaded circular taper pin 10, packing ring 11, nut 12, and described valve rod 7 lower ends are provided with valve rod cushion block 17.
Described guide plate 15 upper ends are provided with the back-up ring 14 that is used to prevent the guide plate axial float.
Described handwheel 13 is provided with the chain 16 that is used for handwheel locking.
Described valve gap 4 is provided with the valve gap packing ring 18 that prevents to reveal, is used to detect the leak detection bolt 19 whether barrier film damages.
Also comprise valve gap bolt 20, valve gap packing ring 21, bonnet nut 22, described valve gap bolt 20 is connected with bonnet nut 22 after passing valve gap 4, barrier film 2, valve body 1, valve gap packing ring 21 successively.
Compared with prior art, the utlity model has following advantage:
1, 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 possibly 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.
2, the valve body pipeline adopts straight-through design, does not have the end face resistance, and the pressure loss reduces, and no medium is very suitable for the occasion of pollution-free and danger-restricted area and the suspension that various high concentration has fiber in the alluvial of body cavity; It is nearest main product in this several years nuclear power projects membrane valves.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
Like Fig. 1, a kind of nuclear power leads directly to membrane valve, comprises valve body 1, barrier film 2, flap 3, valve gap 4, valve rod 7, indicating arm 9, handwheel 13, guide plate 15; Described valve body 1 is connected the back and forms the space that holds flap 3, valve rod 7 with valve gap 4; Described barrier film 2 is located at the joint of valve body 1 and valve gap 4; Described valve rod 7 lower ends are connected with barrier film 2 through flap 3, and described valve rod 7 upper ends are connected with handwheel 13, and described guide plate 15 is fixed on the valve rod 7; Described indicating arm 9 upper ends are fixed on the guide plate 15, and described indicating arm 9 lower ends are fixedly connected with valve gap 4.
Described valve rod 7 is provided with Stem Mut 5.
Described indicating arm 9 lower ends are fixedly connected with valve gap 4 through indicating arm nut 6.
The contacting point of described valve gap 4 upper ends and valve rod 7 is provided with O-ring seals 8.
Described valve rod 7 upper ends are connected with handwheel 13 through threaded circular taper pin 10, packing ring 11, nut 12, and described valve rod 7 lower ends are provided with valve rod cushion block 17.
Described guide plate 15 upper ends are provided with the back-up ring 14 that is used to prevent the guide plate axial float.
Described handwheel 13 is provided with the chain 16 that is used for handwheel locking.
Described valve gap 4 is provided with the valve gap packing ring 18 that prevents to reveal, is used to detect the leak detection bolt 19 whether barrier film damages.
The utility model also comprises valve gap bolt 20, valve gap packing ring 21, bonnet nut 22, and described valve gap bolt 20 is connected with bonnet nut 22 after passing valve gap 4, barrier film 2, valve body 1, valve gap packing ring 21 successively.
The keying of the utility model is to lean on rotation hand wheel 13, makes valve rod 7 do axial motion, and drive flap 3 and barrier film 2 go up and down to reach.When handwheel 13 clockwise directions rotated, flap 3 blocked with 2 times general who has surrendered's paths of barrier film, and valve is promptly closed, otherwise valve is then opened.
The nuclear power straight way diaphragm valve is provided with leak detection bolt 19 at valve gap 4 lower ends, can find in time whether the valve barrier film 2 that is in operation damages.
Because Sealing is whippy diaphragm of rubber, therefore have better stiffness breakage, endurance and anti-radiation performance.Barrier film 2 is a conical surface seal; Still belong to blank in China, the difficulty of its design and manufacturing is very big, and barrier film 2 is almost consistent with the runner of valve body 1 simultaneously; Thereby strengthened the keying stroke of diaphragm of rubber 2 greatly; And the keying stroke of diaphragm of rubber 2 is big more, and its amount of deformation is also just big more, and it is also just big more to influence the degree in its working life.Therefore best straight-through type membrane configuration is produced in the our factory design, has guaranteed the working life of valve.
Nuclear power straight way diaphragm valve outward appearance is novel, unique, through the scale on the indicating arm 9, can in time differentiate the aperture of valve, and this moment valve flow size; Attach the device that chain 16 locking handwheels 13 are housed simultaneously, can prevent staff's misoperation, guaranteed the safe operation of nuclear power generating equipment.
Claims (9)
1. the straight-through membrane valve of nuclear power is characterized in that, comprises valve body (1), barrier film (2), flap (3), valve gap (4), valve rod (7), indicating arm (9), handwheel (13), guide plate (15); Described valve body (1) is connected the back and forms the space that holds flap (3), valve rod (7) with valve gap (4); Described barrier film (2) is located at the joint of valve body (1) and valve gap (4); Described valve rod (7) lower end is connected with barrier film (2) through flap (3), and described valve rod (7) upper end is connected with handwheel (13), and described guide plate (15) is fixed on the valve rod (7); Described indicating arm (9) upper end is fixed on the guide plate (15), and described indicating arm (9) lower end is fixedly connected with valve gap (4).
2. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, described valve rod (7) is provided with Stem Mut (5).
3. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, described indicating arm (9) lower end is fixedly connected with valve gap (4) through indicating arm nut (6).
4. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, described valve gap (4) upper end is provided with O-ring seals (8) with the contacting point of valve rod (7).
5. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, described valve rod (7) upper end is connected with handwheel (13) through threaded circular taper pin (10), packing ring (11), nut (12), and described valve rod (7) lower end is provided with valve rod cushion block (17).
6. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, described guide plate (15) upper end is provided with the back-up ring (14) that is used to prevent the guide plate axial float.
7. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, described handwheel (13) is provided with the chain (16) that is used for handwheel locking.
8. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, described valve gap (4) is provided with the valve gap packing ring (18) that prevents to reveal, is used to detect the leak detection bolt (19) whether barrier film damages.
9. a kind of nuclear power according to claim 1 leads directly to membrane valve; It is characterized in that; Also comprise valve gap bolt (20), valve gap packing ring (21), bonnet nut (22), described valve gap bolt (20) is connected with bonnet nut (22) after passing valve gap (4), barrier film (2), valve body (1), valve gap packing ring (21) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201624790U CN202109023U (en) | 2011-05-20 | 2011-05-20 | Nuclear power direct type diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201624790U CN202109023U (en) | 2011-05-20 | 2011-05-20 | Nuclear power direct type diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202109023U true CN202109023U (en) | 2012-01-11 |
Family
ID=45434457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201624790U Expired - Lifetime CN202109023U (en) | 2011-05-20 | 2011-05-20 | Nuclear power direct type diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202109023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869502A (en) * | 2019-04-11 | 2019-06-11 | 宝得流体控制(苏州)有限公司 | Valve stem nut and diaphragm valve |
-
2011
- 2011-05-20 CN CN2011201624790U patent/CN202109023U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869502A (en) * | 2019-04-11 | 2019-06-11 | 宝得流体控制(苏州)有限公司 | Valve stem nut and diaphragm valve |
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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: 20120111 |
|
| CX01 | Expiry of patent term |