CN202074071U - Nuclear-power straight-through diaphragm valve - Google Patents

Nuclear-power straight-through diaphragm valve Download PDF

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Publication number
CN202074071U
CN202074071U CN2011201522462U CN201120152246U CN202074071U CN 202074071 U CN202074071 U CN 202074071U CN 2011201522462 U CN2011201522462 U CN 2011201522462U CN 201120152246 U CN201120152246 U CN 201120152246U CN 202074071 U CN202074071 U CN 202074071U
Authority
CN
China
Prior art keywords
valve
connecting sleeve
valve rod
nuclear power
lining
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
Application number
CN2011201522462U
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Chinese (zh)
Inventor
苏仕平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Valve Five Co Ltd Factory
Original Assignee
Shanghai Valve Five Co Ltd Factory
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Valve Five Co Ltd Factory filed Critical Shanghai Valve Five Co Ltd Factory
Priority to CN2011201522462U priority Critical patent/CN202074071U/en
Application granted granted Critical
Publication of CN202074071U publication Critical patent/CN202074071U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a nuclear-power straight-through diaphragm valve, which is characterized in that the diaphragm valve comprises a valve body, a valve cover, a connecting sleeve, a valve rod, a connecting piece, a valve clack and a diaphragm, wherein the valve cover is connected with the valve body, the connecting sleeve is connected with the valve cover through a flange, a valve-rod nut which is formed into a threaded pair together with the valve rod and enables the valve rod to upwards and downwards move is arranged in the connecting sleeve, a lining which is used for guiding the valve rod to upwards and downwards move is arranged in the valve cover, the lining is connected with the valve cover, one end of the valve rod is connected with the connecting piece, and the other end of the valve rod sequentially penetrates through the connecting sleeve, the valve-rod nut and the lining and is connected with the diaphragm through the valve clack. Compared with the prior art, the nuclear-power straight-through diaphragm valve has the advantages that the operation is simple, the phenomena of running, bursting, dripping, leakage and the like of usual valves are thoroughly eliminated, and the like.

Description

A kind of nuclear power leads directly to membrane valve
Technical field
The utility model relates to a kind of membrane 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 this utility model is exactly to provide a kind of simple to operate for the defective that overcomes above-mentioned prior art existence, and has thoroughly stopped the straight-through membrane valve of nuclear power of the phenomenons such as " run, drip, leak " of common valve.
The purpose of this utility model can be achieved through the following technical solutions: a kind of nuclear power leads directly to membrane valve, it is characterized in that, this membrane valve comprises valve body, valve gap, connecting sleeve, valve rod, link, flap and barrier film, described valve gap is connected with valve body, described connecting sleeve is connected with valve gap by flange, be provided with in the described connecting sleeve with valve rod and constitute screw pair, make the Stem Mut that valve rod can move up and down, be provided with the lining that moves up and down and lead as valve rod in the described valve gap, this lining is connected with valve gap, one end of described valve rod is connected with link, the other end passes connecting sleeve successively, Stem Mut, lining is connected with barrier film by flap.
The joint of described connecting sleeve and Stem Mut is provided with the spline key that prevents that Stem Mut from rotating.
The joint of described connecting sleeve and Stem Mut is provided with and prevents the axially movable retainingf key of Stem Mut.
The joint of described valve rod and lining is provided with an O RunddichtringO, and the joint of described lining and valve gap is provided with the 2nd O RunddichtringO.
The joint of described valve rod and flap is provided with the valve rod cushion block that is used to reduce the friction factor between valve rod and the flap.
Described valve gap is provided with the leak detection bolt.
Described membrane valve comprises limit stoper, and this limit stoper is fixed on the connecting sleeve by connecting gusset.
Described limit stoper comprises finger and collision block, and an end of described finger is connected with valve rod, and the other end is connected with collision block.
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 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;
2, slim and graceful in the operation, rapid, convenient, smooth, be widely used on the domestic and international nuclear power projects;
3, compare with more existing membrane valves, 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.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the side-looking structural representation of Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1 and Figure 2, a represents flow direction valve among the figure.A kind of nuclear power leads directly to membrane valve, and this membrane valve comprises valve body 14, valve gap 7, connecting sleeve 3, valve rod 20, link 2, flap 12, barrier film 13, limit stoper 15.Limit stoper 15 is fixed on the connecting sleeve 3 by connecting gusset 16, can feed back valve rod in real time and move up and down.Limit stoper 15 comprises finger 18 and collision block 19, and an end of finger 18 is connected with valve rod 20, and the other end is connected with collision block 19, in the running, drives collision blocks 19, feedback information by finger 18 about the valve.Valve gap 7 is connected with valve body 14.Connecting sleeve 3 is connected with valve gap 7 by flange 17.Be provided with in the connecting sleeve 3 with valve rod 20 and constitute screw pairs, make the Stem Mut 6 that valve rod 20 can move up and down.Connecting sleeve 3 is provided with spline key 4 and retainingf key 5 with the joint of Stem Mut 6, is respectively applied for to prevent that Stem Mut 6 from rotating and prevent that Stem Mut 6 from moving axially.Be provided with lining 10 in the valve gap 7, play the leading role that valve rod 20 moves up and down, this lining 10 is connected with valve gap 7 by screw.One end of valve rod 20 is connected with link 2, and the other end passes connecting sleeve 3, Stem Mut 6, lining 10 successively, is connected with barrier film 13 by flap 12.The joint of valve rod 20 and flap 12 is provided with the valve rod cushion block 11 that is used to reduce the friction factor between valve rod 20 and the flap 12.Valve rod 20 is provided with an O RunddichtringO 8 with the joint of lining 10, and lining 10 is provided with the 2nd O RunddichtringO 9 with the joint of valve gap 7, and in the time of can preventing that contingency from damaging barrier film 13, medium is from the leakage of valve rod 20.Valve gap 7 is provided with leak detection bolt 1, can find in time whether the valve barrier film that is in operation damages.
The keying of the straight-through membrane valve of nuclear power is by the rotation joint boot, makes valve rod do axial motion, drives flap and barrier film lifting and reaches.When the joint boot clockwise direction rotated, general who has surrendered's path blocked under the flap barrier film, and valve is promptly closed, otherwise valve is then opened.
Barrier film is whippy diaphragm of rubber, therefore has better stiffness breakage, endurance and anti-radiation performance.Because barrier film is a conical surface seal, the difficulty of its design and manufacturing is very big, and barrier film is almost consistent with the runner of valve body simultaneously, thereby strengthened the keying stroke of diaphragm of rubber greatly, and the keying stroke of diaphragm of rubber 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 utility model design, has guaranteed the working life of valve.
The outward appearance novelty of limit stoper, original, limit stoper by attaching, can on the simulated screen of control room, in time understand the actual conditions of pipeline, carry out remote manually-operable valve, avoided the influence of working environment to the human body that caused, satisfied under the various bad working environments conditions, valve opening and closing can have been guaranteed the operation and the personal safety of nuclear power generating equipment.

Claims (8)

1. a nuclear power leads directly to membrane valve, it is characterized in that, this membrane valve comprises valve body, valve gap, connecting sleeve, valve rod, link, flap and barrier film, described valve gap is connected with valve body, described connecting sleeve is connected with valve gap by flange, be provided with in the described connecting sleeve with valve rod and constitute screw pair, make the Stem Mut that valve rod can move up and down, be provided with the lining that moves up and down and lead as valve rod in the described valve gap, this lining is connected with valve gap, one end of described valve rod is connected with link, the other end passes connecting sleeve successively, Stem Mut, lining is connected with barrier film by flap.
2. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, the joint of described connecting sleeve and Stem Mut is provided with the spline key that prevents that Stem Mut from rotating.
3. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, the joint of described connecting sleeve and Stem Mut is provided with and prevents the axially movable retainingf key of Stem Mut.
4. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, the joint of described valve rod and lining is provided with an O RunddichtringO, and the joint of described lining and valve gap is provided with the 2nd O RunddichtringO.
5. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that, the joint of described valve rod and flap is provided with the valve rod cushion block that is used to reduce the friction factor between valve rod and the flap.
6. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that described valve gap is provided with the leak detection bolt.
7. a kind of nuclear power according to claim 1 leads directly to membrane valve, it is characterized in that described membrane valve comprises limit stoper, and this limit stoper is fixed on the connecting sleeve by connecting gusset.
8. a kind of nuclear power according to claim 7 leads directly to membrane valve, it is characterized in that described limit stoper comprises finger and collision block, and an end of described finger is connected with valve rod, and the other end is connected with collision block.
CN2011201522462U 2011-05-13 2011-05-13 Nuclear-power straight-through diaphragm valve Expired - Lifetime CN202074071U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201522462U CN202074071U (en) 2011-05-13 2011-05-13 Nuclear-power straight-through diaphragm valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201522462U CN202074071U (en) 2011-05-13 2011-05-13 Nuclear-power straight-through diaphragm valve

Publications (1)

Publication Number Publication Date
CN202074071U true CN202074071U (en) 2011-12-14

Family

ID=45112174

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201522462U Expired - Lifetime CN202074071U (en) 2011-05-13 2011-05-13 Nuclear-power straight-through diaphragm valve

Country Status (1)

Country Link
CN (1) CN202074071U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103527811A (en) * 2012-07-05 2014-01-22 上海阀门五厂有限公司 Electric rubber lining diaphragm valve
CN106885011A (en) * 2017-04-17 2017-06-23 上海阀门五厂有限公司 One seed nucleus level manual diaphragm valve
CN106885042A (en) * 2017-04-17 2017-06-23 上海阀门五厂有限公司 A kind of diaphragm valve bonnet assemblies for being capable of achieving upper sealing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103527811A (en) * 2012-07-05 2014-01-22 上海阀门五厂有限公司 Electric rubber lining diaphragm valve
CN106885011A (en) * 2017-04-17 2017-06-23 上海阀门五厂有限公司 One seed nucleus level manual diaphragm valve
CN106885042A (en) * 2017-04-17 2017-06-23 上海阀门五厂有限公司 A kind of diaphragm valve bonnet assemblies for being capable of achieving upper sealing

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CX01 Expiry of patent term

Granted publication date: 20111214

CX01 Expiry of patent term