CN202017789U - Nuclear power vacuum breaker valve - Google Patents
Nuclear power vacuum breaker valve Download PDFInfo
- Publication number
- CN202017789U CN202017789U CN2011201482018U CN201120148201U CN202017789U CN 202017789 U CN202017789 U CN 202017789U CN 2011201482018 U CN2011201482018 U CN 2011201482018U CN 201120148201 U CN201120148201 U CN 201120148201U CN 202017789 U CN202017789 U CN 202017789U
- Authority
- CN
- China
- Prior art keywords
- valve
- cutting ferrule
- nuclear power
- vacuum breaker
- power vacuum
- 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
Links
- 230000004888 barrier function Effects 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 5
- 230000001066 destructive effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003471 anti-radiation Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Landscapes
- Valve Housings (AREA)
Abstract
The utility model relates to a nuclear power vacuum breaker valve, which comprises a valve body, a bonnet, a valve flap, a diaphragm, a valve stem, a hand wheel, a pneumatic actuator and joints. The bonnet is arranged at the top of the valve body, connected with the valve body through bolts and further locked through fastening nuts, the valve flap is arranged in the bonnet, the diaphragm is arranged below the valve flap and arranged at the connection position of the valve body with the bonnet, the pneumatic actuator is arranged above the bonnet, the joints are arranged on the periphery of the pneumatic actuator, the valve stem penetrates through the middles of the pneumatic actuator and the bonnet, the bottom of the valve stem is in contact connection with the valve flap, and the hand wheel is arranged at the top of the valve stem. Compared with the prior art, the nuclear power vacuum breaker valve is a novel pneumatic diaphragm valve for quickly cutting off pipeline media, and is applicable to severe operating environments requiring extremely quick response.
Description
Technical field
The utility model relates to a kind of valve, especially relates to a kind of nuclear power vacuum breaker 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.
The model utility content
The purpose of this utility model be exactly provide a kind of in order to overcome the defective that above-mentioned prior art exists and do not have stuffing box, long service life, be applicable to work under bad environment, the reaction nuclear power vacuum breaker valve of occasion extremely rapidly.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of nuclear power vacuum breaker valve, it is characterized in that, this destructive valve comprises valve body, valve gap, flap, barrier film, valve rod, handwheel, pneumatic actuator and joint, described valve gap is located at the top of valve body, be connected with valve body through bolt, and lock through set screw nut, described flap is located in the valve gap, described barrier film is located at the bottom of flap, this barrier film is located at the joint of valve body and valve gap, the top of valve gap is provided with pneumatic actuator, described joint be located at pneumatic actuator around, pneumatic actuator is for connecting the external device that first operating valve lever moves up and down that opens, described valve rod is located in the middle part of pneumatic actuator and valve gap, the bottom of valve rod is connected with the flap contact, and described handwheel is located at the top of valve rod.
Described barrier film is arch structure, and the top is provided with screw, and this screw connects barrier film and flap, is arranged with O-ring seals on the screw.
Be arranged with valve rod cushion block and butterfly gasket on the described valve rod.
Described joint comprises source of the gas pipe joint, cutting ferrule free flow coupling, the curved connection for bbreather pipe of cutting ferrule and the three-way union of cutting ferrule end, described source of the gas pipe joint is connected with the curved connection for bbreather pipe of cutting ferrule by the road, and described cutting ferrule free flow coupling is connected with the three-way union of cutting ferrule end by the road.
Described cutting ferrule free flow coupling is connected with the pipeline that is connected the curved connection for bbreather pipe of source of the gas pipe joint and cutting ferrule through support, and the support place is provided with the air-filtering valve.
The curved connection for bbreather pipe of described cutting ferrule free flow coupling and cutting ferrule is provided with adapter.
The pipeline of the curved connection for bbreather pipe of described source of the gas pipe joint and cutting ferrule is provided with rapid escape valve.
The pipeline of described cutting ferrule free flow coupling and the three-way union of cutting ferrule end is provided with solenoid valve.
The three-way union of described cutting ferrule end is provided with the curved connection for bbreather pipe of cutting ferrule, and the curved connection for bbreather pipe of this cutting ferrule connects with the pipeline that is connected the cutting ferrule free flow coupling through support.
Compared with prior art, the utility model adopts the design of unique no stuffing box, therefore stopped the drawback that stuffing hole is easy to seepage, because the effect of barrier film, can make Korrosionsmedium and all driver parts be in the state of isolating fully, thereby eradicated the common fault of conventional valve " run, drip, leak ", because Sealing is whippy diaphragm of rubber; Therefore have better stiffness breakage, endurance and anti-radiation performance, the leakage rate of valve is zero, therefore the pattern that has substituted conventional piston formula air cylinder driven with the diaphragm type pneumatic actuator of low weight grain husk has been got rid of between piston and cylinder and has been driven defectives such as malfunctioning because of relative wear causes, its working life, corresponding raising was 10～20 times, it is a kind of pneumatic diaphragm valve of novel, fast shut-off pipeline medium, it is applicable to work under bad environment, reaction occasion extremely rapidly, is widely used on the significant points of nuclear power projects.
Description of drawings
Fig. 1 is a main TV structure schematic representation of the present utility model;
Fig. 2 is a plan structure schematic representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
A kind of nuclear power vacuum breaker valve, its structure is shown in Fig. 1～2, and this destructive valve comprises valve body 14, valve gap 3, flap 11, barrier film 13, valve rod, handwheel, pneumatic actuator 5 and joint, and valve gap 3 is located at the top of valve body 14, be connected with valve body 14 through bolt 1, and through set screw nut 2 lockings.The major function of valve body 14 is the major parts as the working medium flow channel, bears working medium pressure, temperature and erosion, satisfies valve and pipe-line system is installed and used requirement, bears the additional load that is produced in installing and using process.Flap 11 is located in the valve gap 3, the barrier film 13 of arch is located at the bottom of flap 11, this barrier film 13 is located at the joint of valve body 14 and valve gap 3, and the top is provided with screw 7, and this screw 7 connects barrier film 13 and flaps 11, be arranged with O-ring seals 6 on the screw 7, just in case when barrier film 13 damages, O-ring seals 6 can prevent that medium from revealing from the valve gap upper-end surface, and barrier film 13 is used for the leakage of spacer medium to the valve rod place, being one of leading indicator of examination valve mass performance, is the major part of valve opening and closing element.The top of valve gap 3 is provided with pneumatic actuator 5, connect through screw 12, joint be located at pneumatic actuator 5 around, pneumatic actuator 5 is for connecting the external device that first operating valve lever moves up and down that opens.Valve rod is located in the middle part of pneumatic actuator 5 and valve gap 3, the bottom of valve rod contacts with flap 11, and sells 10 fixedly connectedly, is arranged with valve rod cushion block 8 and butterfly gasket 9 on valve rod, valve rod cushion block 8 can increase the intensity of being born when valve rod moves up and down, and handwheel is located at the top of valve rod.
Joint comprises source of the gas pipe joint 4, cutting ferrule free flow coupling 17, the curved connection for bbreather pipe 20 of cutting ferrule and cutting ferrule end three-way union 22, source of the gas pipe joint 4 is connected with the curved connection for bbreather pipe 17 of cutting ferrule by the road, and cutting ferrule free flow coupling 17 is connected with cutting ferrule end three-way union 22 by the road.Cutting ferrule free flow coupling 17 is connected with the pipeline that is connected the curved connection for bbreather pipe 20 of source of the gas pipe joint 4 and cutting ferrule through support 16, support 16 places are provided with air-filtering valve 15, air-filtering valve 15 filters the impurity in the source of the gas, satisfy the job requirement of rapid escape valve 19, the valve that rapid escape valve 19 can moment opens in≤0.4 second.On cutting ferrule free flow coupling 17 and the curved connection for bbreather pipe 20 of cutting ferrule, be equipped with and take over 18, adapter 18 is connected with air-filtering valve 15 or is connected with rapid escape valve 19 through the curved connection for bbreather pipe 20 of cutting ferrule through cutting ferrule free flow coupling 17, on the pipeline of source of the gas pipe joint 4 and the curved connection for bbreather pipe 17 of cutting ferrule, be provided with rapid escape valve 19, cutting ferrule free flow coupling 17 is provided with solenoid valve 21 with the pipeline of cutting ferrule end three-way union 22, cutting ferrule end three-way union 22 is provided with the curved connection for bbreather pipe 20 of cutting ferrule, and the curved connection for bbreather pipe 20 of this cutting ferrule connects with the pipeline that is connected cutting ferrule free flow coupling 17 through support 16.
Claims (9)
1. nuclear power vacuum breaker valve, it is characterized in that, this destructive valve comprises valve body, valve gap, flap, barrier film, valve rod, handwheel, pneumatic actuator and joint, described valve gap is located at the top of valve body, be connected with valve body through bolt, and lock through set screw nut, described flap is located in the valve gap, described barrier film is located at the bottom of flap, this barrier film is located at the joint of valve body and valve gap, the top of valve gap is provided with pneumatic actuator, described joint be located at pneumatic actuator around, pneumatic actuator is for connecting the external device that first operating valve lever moves up and down that opens, described valve rod is located in the middle part of pneumatic actuator and valve gap, the bottom of valve rod is connected with the flap contact, and described handwheel is located at the top of valve rod.
2. a kind of nuclear power vacuum breaker valve according to claim 1 is characterized in that described barrier film is arch structure, and the top is provided with screw, and this screw connects barrier film and flap, is arranged with O-ring seals on the screw.
3. a kind of nuclear power vacuum breaker valve according to claim 1 is characterized in that, is arranged with valve rod cushion block and butterfly gasket on the described valve rod.
4. a kind of nuclear power vacuum breaker valve according to claim 1, it is characterized in that, described joint comprises source of the gas pipe joint, cutting ferrule free flow coupling, the curved connection for bbreather pipe of cutting ferrule and the three-way union of cutting ferrule end, described source of the gas pipe joint is connected with the curved connection for bbreather pipe of cutting ferrule by the road, and described cutting ferrule free flow coupling is connected with the three-way union of cutting ferrule end by the road.
5. a kind of nuclear power vacuum breaker valve according to claim 4 is characterized in that, described cutting ferrule free flow coupling is connected with the pipeline that is connected the curved connection for bbreather pipe of source of the gas pipe joint and cutting ferrule through support, and the support place is provided with the air-filtering valve.
6. a kind of nuclear power vacuum breaker valve according to claim 4 is characterized in that, the curved connection for bbreather pipe of described cutting ferrule free flow coupling and cutting ferrule is provided with adapter.
7. a kind of nuclear power vacuum breaker valve according to claim 4 is characterized in that, the pipeline of the curved connection for bbreather pipe of described source of the gas pipe joint and cutting ferrule is provided with rapid escape valve.
8. a kind of nuclear power vacuum breaker valve according to claim 4 is characterized in that, the pipeline of described cutting ferrule free flow coupling and the three-way union of cutting ferrule end is provided with solenoid valve.
9. a kind of nuclear power vacuum breaker valve according to claim 4 is characterized in that, the three-way union of described cutting ferrule end is provided with the curved connection for bbreather pipe of cutting ferrule, and the curved connection for bbreather pipe of this cutting ferrule connects with the pipeline that is connected the cutting ferrule free flow coupling through support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201482018U CN202017789U (en) | 2011-05-11 | 2011-05-11 | Nuclear power vacuum breaker valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201482018U CN202017789U (en) | 2011-05-11 | 2011-05-11 | Nuclear power vacuum breaker valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202017789U true CN202017789U (en) | 2011-10-26 |
Family
ID=44811459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201482018U Expired - Lifetime CN202017789U (en) | 2011-05-11 | 2011-05-11 | Nuclear power vacuum breaker valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202017789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527812A (en) * | 2012-07-05 | 2014-01-22 | 上海阀门五厂有限公司 | Nuclear grade M-type pneumatic straight diaphragm valve |
| CN113606959A (en) * | 2021-05-10 | 2021-11-05 | 中国核电工程有限公司 | Condenser cooling system and power generation system |
-
2011
- 2011-05-11 CN CN2011201482018U patent/CN202017789U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527812A (en) * | 2012-07-05 | 2014-01-22 | 上海阀门五厂有限公司 | Nuclear grade M-type pneumatic straight diaphragm valve |
| CN113606959A (en) * | 2021-05-10 | 2021-11-05 | 中国核电工程有限公司 | Condenser cooling system and power generation system |
| CN113606959B (en) * | 2021-05-10 | 2024-04-12 | 中国核电工程有限公司 | A condenser cooling system and power generation system |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |