CN204372201U - ADS Automatic Depressurization System valve - Google Patents
ADS Automatic Depressurization System valve Download PDFInfo
- Publication number
- CN204372201U CN204372201U CN201420818370.1U CN201420818370U CN204372201U CN 204372201 U CN204372201 U CN 204372201U CN 201420818370 U CN201420818370 U CN 201420818370U CN 204372201 U CN204372201 U CN 204372201U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- big
- assembly
- little
- 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.)
- Active
Links
Landscapes
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
Basis is novel belongs to valve, is specifically related to a kind of ADS Automatic Depressurization System valve.A kind of ADS Automatic Depressurization System valve, comprises valve body, flap assembly, valve rod, valve gap, support, actuator; Wherein flap assembly is arranged in the middle of valve body, valve rod above flap assembly, and valve rod can drive flap assembly to realize open and-shut mode; Valve gap is set above valve body, above valve gap, support is set, above support, actuator is set; Described valve rod runs through valve gap and is connected with actuator with support, and actuator can be with ovable valve stem to rotate.This novel effect is: the life-span extending valve; Can realize that valve is opened slowly, the function of controlled step-down.
Description
Technical field
Basis is novel belongs to valve, is specifically related to a kind of ADS Automatic Depressurization System valve.
Background technique
At present, nuclear power plant of China planning and development three generations nuclear power, AP1000 and CAP series three generations nuclear power heap-type is main three generations's nuclear power heap-type, ADS Automatic Depressurization System valve three, two, Haiyang AP1000 unit be adopt import equipment, due to three, Haiyang nuclear power plant also construction in the middle of, such valve is up to the present unactual to be used, and does not domesticly develop such valve especially, belongs to product completely newly developed.
ADS Automatic Depressurization System valve is one of AP1000 and CAP series heap-type critical valves equipment, it is a part for reactor coolant loop, and be connected with non-active Core cooling agent (PXS), be divided into four buck stages, it is connected respectively to three diverse locations of reactor coolant loop (RCS).1st, the 2nd and 3rd level ADS Automatic Depressurization System valve as a part for voltage stabilizer safety and pressure-relief valve (PSARV) module, be connected on the ozzle at voltage stabilizer top.
The development of ADS Automatic Depressurization System valve, by changing the situation of such valve gate technology dependence on import, promotes Nationalization of Nuclear Power Equipment further, and promotes autonomy-oriented intellectual property further.。
Summary of the invention
This novel object is the defect for prior art, provides a kind of ADS Automatic Depressurization System valve.
Basis is novel is achieved in that a kind of ADS Automatic Depressurization System valve, comprises valve body, flap assembly, valve rod, valve gap, support, actuator; Wherein flap assembly is arranged in the middle of valve body, valve rod above flap assembly, and valve rod can drive flap assembly to realize open and-shut mode; Valve gap is set above valve body, above valve gap, support is set, above support, actuator is set; Described valve rod runs through valve gap and is connected with actuator with support, and actuator can be with ovable valve stem to rotate.
A kind of ADS Automatic Depressurization System valve as above, wherein, flap assembly comprises big valve flap, little flap, spring, gland nut, screw and valve rod, wherein big valve flap is the shell of flap assembly, the external surface shape of big valve flap and the cavity shape of valve body match, cavity is provided with at big valve flap center, big valve flap is provided with the through hole that left and right is run through, the bottom surface of big valve flap is also provided with through hole, the through hole of the through hole that above-mentioned left and right is run through and bottom surface all with the cavity connects at big valve flap center, in the cavity of big valve flap, little flap is set, the form fit of through hole on little flap shape foremost and big valve flap bottom surface, the outer side wall of little flap is provided with boss, the outer wall of little flap is provided with spring, one end of spring is stuck on the boss of little flap, the other end withstands on the bottom surface of big valve flap, little flap is fixedly connected with valve rod, and can move up and down under the drive of valve rod, on the top of big valve flap, gland nut is set, gland nut is fixedly connected with big valve flap by screw.
A kind of ADS Automatic Depressurization System valve as above, wherein, the surface of contact of flap assembly and valve body is arranged guide surface cemented carbide.
A kind of ADS Automatic Depressurization System valve as above, wherein, arranges packing seal assembly in the position that valve rod contacts with valve gap.
A kind of ADS Automatic Depressurization System valve as above, wherein, support is provided with position indicator assembly.
This novel effect is:
1. the guide structure of valve
ADS Automatic Depressurization System valve is the guiding of valve body lumen as flap assembly, the guide surface of valve body and flap assembly is provided with cemented carbide, and being provided with rational gap prevents valve from occurring calorie resistance phenomenon under the operating mode of High Temperature High Pressure, guide surface surface increases the wear resistance of guide surface through special processing, extend the life-span of valve.
2. flap modular construction
Flap assembly is the form adopting size two flap combinations, when valve opening, first open little flap, medium flows to the outlet end of valve by the equalizing orifice in big valve flap, make to import and export in valve cavity to reach state of equilibrium, continue Open valve, drive big valve flap finally to open to realize valve by little flap; Little flap is connected with valve rod by screw thread, and spot welding is fixed, and ensures that valve rod is connected reliably with flap assembly; The equalizing orifice of big valve flap adopts lateral opening hole mode, and the high-speed Medium of High Temperature High Pressure can be avoided directly to wash away sealing surface region; Arrange spring between size flap, spring is all be in compressive state in whole opening process, prevents pipe-line system pressure surge from causing two violent plaies of flap.This flap assembly can realize that valve is opened slowly, the function of controlled step-down.
This valve is core one-level code requirement, and the inside nominal diameter of valve is DN200mm, and design pressure is 17.13MPa, and design temperature is 360 DEG C.Design service life is 60 years.
Accompanying drawing explanation
Figure 1A DS Automatic Depressurization System valve mechanism figure (closed positions);
Fig. 2 ADS Automatic Depressurization System valve flow plotted curve (CV-aperture);
Fig. 3 ADS Automatic Depressurization System valve guide structure figure;
Fig. 4 flap assembly assumption diagram.
In figure: 1 valve body; 2 flap assemblies; 3 valve rods; 4 valve gaps; 5 packing seal assemblies; 6 supports; 7 position indicator assemblies; 8 actuators; 9 big valve flaps; 10 little flaps; 11 springs; 12 gland nuts; 13 screws; 15 guide surface gaps; 16 guide surface cemented carbide.
Embodiment
As shown in accompanying drawing 1 and accompanying drawing 3, a kind of ADS Automatic Depressurization System valve, comprises valve body 1, flap assembly 2, valve rod 3, valve gap 4, support 6, actuator 8; Wherein flap assembly 2 is arranged in the middle of valve body 1, valve rod 3 above flap assembly 2, and valve rod 3 can drive flap assembly 2 to realize open and-shut mode; Valve gap 4 is set above valve body 1, support 6 is set above valve gap 4, actuator 8 is set above support 6; Described valve rod 3 runs through valve gap 4 and is connected with actuator 8 with support 6, and actuator 8 can be with ovable valve stem 3 to rotate.
The position contacted with valve gap 4 at valve rod 3 arranges packing seal assembly 5.
Be provided with position indicator assembly 7 on the frame 6.
As shown in Figure 3, flap assembly 2 and the surface of contact of valve body 1 arrange guide surface cemented carbide 16, reduces guide surface gap 15 as far as possible.
As shown in Figure 4, flap assembly 2 comprises big valve flap 9, little flap 10, spring 11, gland nut 12, screw 13 and valve rod 3, wherein big valve flap 9 is the shell of flap assembly 2, the external surface shape of big valve flap 9 and the cavity shape of valve body 1 match, cavity is provided with at big valve flap 9 center, big valve flap 9 is provided with the through hole that left and right is run through, the bottom surface of big valve flap 9 is also provided with through hole, the through hole of the through hole that above-mentioned left and right is run through and bottom surface all with the cavity connects at big valve flap 9 center, little flap 10 is set in the cavity of big valve flap 9, the form fit of through hole on little flap 10 shape foremost and big valve flap 9 bottom surface, the outer side wall of little flap 10 is provided with boss, the outer wall of little flap 10 is provided with spring 11, one end of spring 11 is stuck on the boss of little flap 10, the other end withstands on the bottom surface of big valve flap 9, little flap 10 is fixedly connected with valve rod 3, and can move up and down under the drive of valve rod 3, on the top of big valve flap 9, gland nut 12 is set, gland nut 12 is fixedly connected with big valve flap 9 by screw 13.
Claims (5)
1. an ADS Automatic Depressurization System valve, is characterized in that: comprise valve body (1), flap assembly (2), valve rod (3), valve gap (4), support (6), actuator (8); Wherein flap assembly (2) is arranged in the middle of valve body (1), and at flap assembly (2) top valve rod (3), valve rod (3) can drive flap assembly (2) to realize open and-shut mode; Arrange valve gap (4) in valve body (1) top, valve gap (4) top arranges support (6), and support (6) top arranges actuator (8); Described valve rod (3) runs through valve gap (4) and is connected with actuator (8) with support (6), and actuator (8) can be with ovable valve stem (3) to rotate.
2. a kind of ADS Automatic Depressurization System valve as claimed in claim 1, it is characterized in that: flap assembly (2) comprises big valve flap (9), little flap (10), spring (11), gland nut (12), screw (13) and valve rod (3), wherein big valve flap (9) shell that is flap assembly (2), the external surface shape of big valve flap (9) and the cavity shape of valve body (1) match, cavity is provided with at big valve flap (9) center, big valve flap (9) is provided with the through hole that left and right is run through, the bottom surface of big valve flap (9) is also provided with through hole, the through hole of the through hole that above-mentioned left and right is run through and bottom surface all with the cavity connects at big valve flap (9) center, little flap (10) is set in the cavity of big valve flap (9), the form fit of through hole on little flap (10) shape foremost and big valve flap (9) bottom surface, the outer side wall of little flap (10) is provided with boss, the outer wall of little flap (10) is provided with spring (11), one end of spring (11) is stuck on the boss of little flap (10), the other end withstands on the bottom surface of big valve flap (9), little flap (10) is fixedly connected with valve rod (3), and can move up and down under the drive of valve rod (3), on the top of big valve flap (9), gland nut (12) is set, gland nut (12) is fixedly connected with big valve flap (9) by screw (13).
3. a kind of ADS Automatic Depressurization System valve as claimed in claim 1 or 2, is characterized in that: flap assembly (2) and the surface of contact of valve body (1) arrange guide surface cemented carbide (16).
4. a kind of ADS Automatic Depressurization System valve as claimed in claim 1 or 2, is characterized in that: the position contacted with valve gap (4) at valve rod (3) arranges packing seal assembly (5).
5. a kind of ADS Automatic Depressurization System valve as claimed in claim 1 or 2, is characterized in that: on support (6), be provided with position indicator assembly (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818370.1U CN204372201U (en) | 2014-12-22 | 2014-12-22 | ADS Automatic Depressurization System valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818370.1U CN204372201U (en) | 2014-12-22 | 2014-12-22 | ADS Automatic Depressurization System valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372201U true CN204372201U (en) | 2015-06-03 |
Family
ID=53328423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420818370.1U Active CN204372201U (en) | 2014-12-22 | 2014-12-22 | ADS Automatic Depressurization System valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782470A (en) * | 2014-12-22 | 2016-07-20 | 中核苏阀科技实业股份有限公司 | Automatic depressurization system (ADS) valve |
-
2014
- 2014-12-22 CN CN201420818370.1U patent/CN204372201U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782470A (en) * | 2014-12-22 | 2016-07-20 | 中核苏阀科技实业股份有限公司 | Automatic depressurization system (ADS) valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203560500U (en) | Novel cryogenic fixed ball valve | |
| CN204372201U (en) | ADS Automatic Depressurization System valve | |
| CN104747738B (en) | A kind of heavy-caliber high-temperature high pressure sleeve adjusting valve | |
| CN204533620U (en) | black water regulating valve | |
| CN203868363U (en) | Hydraulic screw type stop valve | |
| CN203322283U (en) | Chlor-alkali used adjusting valve with pneumatic corrugated pipe | |
| CN206458852U (en) | A kind of linkage ball valve | |
| CN102606760A (en) | Nuclear class I electric ball valve | |
| CN104633139A (en) | Normally-open solenoid valve | |
| CN204437296U (en) | Embedded forging Y type is without bonnet stop valve | |
| CN106286857A (en) | A kind of New-type boiler continuous blowdown regulation valve | |
| CN104482235B (en) | A kind of knife gate valve | |
| CN105782470A (en) | Automatic depressurization system (ADS) valve | |
| CN202441935U (en) | Easy-to-maintain bellows-type safety valve | |
| CN104482240A (en) | Nuclear-grade electric ball valve connected with magnetic driver | |
| CN105757297B (en) | Multi-functional self-operated type shut-off valve | |
| CN202065476U (en) | Scour-proof stop valve | |
| CN204512452U (en) | A kind of heavy-caliber high-temperature high pressure sleeve adjusting valve | |
| CN206988448U (en) | A kind of double spool linkage valve | |
| CN204284460U (en) | Compensation sealing reduction valve | |
| CN201875146U (en) | Large-caliber high-temperature and high-pressure cutoff valve | |
| CN205745317U (en) | A kind of power plant three-way control valve | |
| CN106286917B (en) | Safety valve | |
| CN105114391A (en) | Sequential-action hydraulic cylinder | |
| CN205226416U (en) | Smart small -size antiscour stop valve valve rod hexagonal guide structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI NUCLEAR ENGINEERING RESEARCH AND DESIGN I Effective date: 20150626 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150626 Address after: 215129 No. 501, Zhujianglu Road, Jiangsu, Suzhou Patentee after: CNNC SUFA TECHNOLOGY INDUSTRY Co.,Ltd. Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Address before: 215129 No. 501, Zhujianglu Road, Jiangsu, Suzhou Patentee before: CNNC SUFA TECHNOLOGY INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: No. 501, Zhujiang Road, Suzhou City, Jiangsu Province Patentee after: CNNC SUFA TECHNOLOGY INDUSTRY Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 501, Zhujiang Road, Suzhou City, Jiangsu Province Patentee before: CNNC SUFA TECHNOLOGY INDUSTRY Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |