CN105782470A - Automatic depressurization system (ADS) valve - Google Patents

Automatic depressurization system (ADS) valve Download PDF

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Publication number
CN105782470A
CN105782470A CN201410802670.5A CN201410802670A CN105782470A CN 105782470 A CN105782470 A CN 105782470A CN 201410802670 A CN201410802670 A CN 201410802670A CN 105782470 A CN105782470 A CN 105782470A
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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.)
Pending
Application number
CN201410802670.5A
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Chinese (zh)
Inventor
卓家桂
周金跃
胡金辉
卢安乐
吴辉
张志超
乐秀辉
李军业
刘平
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 Nuclear Engineering Research and Design Institute Co Ltd
CNNC Sufa Technology Industry Co Ltd
Original Assignee
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
CNNC Sufa Technology Industry Co Ltd
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 Nuclear Engineering Research and Design Institute Co Ltd, CNNC Sufa Technology Industry Co Ltd filed Critical Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Priority to CN201410802670.5A priority Critical patent/CN105782470A/en
Publication of CN105782470A publication Critical patent/CN105782470A/en
Pending legal-status Critical Current

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Abstract

The invention belongs to the field of valves and specifically relates to an automatic depressurization system (ADS) valve. The ADS valve comprises a valve body, a valve flap assembly, a valve rod, a valve cover, a support and a performing mechanism. The valve flap assembly is arranged in the middle of the valve body. The valve rod is arranged on the valve flap assembly and can drive the valve flap assembly to achieve the opened state and the closed state. The valve cover is arranged on the valve body. The support is arranged on the valve cover. The performing mechanism is arranged on the support. The valve rod penetrates through the valve cover and the support to be connected with the performing mechanism, and the performing mechanism can drive the valve rod to rotate. The ADS valve has the effects that the life of the valve is prolonged, and the functions of slow valve opening and controllable depressurization can be achieved.

Description

ADS Automatic Depressurization System valve
Technical field
The invention belongs to valve, be specifically related to a kind of ADS Automatic Depressurization System valve.
Background technology
At present, nuclear power plant of China planning and development three generations's nuclear power, AP1000 and CAP series three generations's 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 build in the middle of, such valve is up to the present not actually used, domestic does not develop such valve especially, belongs to the product of completely new exploitation.
ADS Automatic Depressurization System valve is one of AP1000 and CAP series heap-type critical valves equipment, it it is a part for reactor coolant loop, and it is connected with passive Core cooling agent (PXS), being 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 manostat safety and pressure-relief valve (PSARV) module, be connected on the ozzle at manostat top.
The development of ADS Automatic Depressurization System valve, will change 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
It is an object of the invention to the defect for prior art, it is provided that a kind of ADS Automatic Depressurization System valve.
The present invention is achieved in that a kind of ADS Automatic Depressurization System valve, including 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;Being provided above valve gap at valve body, valve gap is provided above support, and support is provided above actuator;Described valve rod runs through valve gap and support is connected with actuator, and actuator can rotate by band ovable valve stem.
nullA kind of ADS Automatic Depressurization System valve as above,Wherein,Flap assembly includes big valve flap、Little flap、Spring、Clamp 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,It is provided with cavity 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 also is provided with through hole,The through hole that above-mentioned left and right is run through all connects with the cavity at big valve flap center with the through hole of bottom surface,The cavity of big valve flap arranges little flap,Little flap shape foremost and the form fit of through hole on big valve flap bottom surface,The lateral 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 fixing with valve rod to be connected,And can move up and down under the drive of valve rod,On the top of big valve flap, clamp nut is set,Clamp nut is connected by screw and big valve flap are fixing.
A kind of ADS Automatic Depressurization System valve as above, wherein, flap assembly and the contact surface of valve body arranges spigot surface hard alloy.
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, is provided with position indicator assembly on support.
The effect of the present invention is:
1. the guide frame of valve
ADS Automatic Depressurization System valve is the valve body lumen guiding as flap assembly, the spigot surface of valve body and flap assembly is provided with hard alloy, and being provided with rational gap prevents valve from occurring calorie resistance phenomenon under the operating mode of High Temperature High Pressure, spigot surface surface increases the wearability of spigot surface through special handling, extends the life-span of valve.
2. flap modular construction
Flap assembly is the form adopting two flap combinations of size, when valve opening, first open little flap, medium flows to the port of export of valve by the balance pipe in big valve flap, make to import and export in valve cavity to reach poised state, continue on 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, it is ensured that valve rod is connected reliably with flap assembly;The balance pipe of big valve flap adopts lateral opening hole mode, it is possible to avoid the high-speed Medium of High Temperature High Pressure directly to wash away sealing surface region;Arranging spring between size flap, spring is at compressive state in whole opening process, it is prevented that tubing pressure oscillation causes two violent plaies of flap.This flap assembly can realize valve open slowly, the function of controlled blood pressure lowering.
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 curve chart (CV-aperture);
Fig. 3 ADS Automatic Depressurization System valve guide frame 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 clamp nuts;13 screws;15 spigot surface gaps;16 spigot surface hard alloys.
Detailed description of the invention
As shown in accompanying drawing 1 and accompanying drawing 3, a kind of ADS Automatic Depressurization System valve, including 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 valve rod 3 above flap assembly 2, valve rod 3 can drive flap assembly 2 to realize open and-shut mode;Being provided above valve gap 4 at valve body 1, valve gap 4 is provided above support 6, and support 6 is provided above actuator 8;Described valve rod 3 runs through valve gap 4 and support 6 is connected with actuator 8, and actuator 8 can rotate by band ovable valve stem 3.
The position contacted with valve gap 4 at valve rod 3 arranges packing seal assembly 5.
It is provided with position indicator assembly 7 on the frame 6.
As shown in Figure 3, flap assembly 2 and the contact surface of valve body 1 arrange spigot surface hard alloy 16, reduce spigot surface gap 15 as far as possible.
nullAs shown in Figure 4,Flap assembly 2 includes big valve flap 9、Little flap 10、Spring 11、Clamp nut 12、Screw 13 and valve rod 3,Wherein big valve flap 9 is the shell of flap assembly 2,The cavity shape of the external surface shape of big valve flap 9 and valve body 1 matches,It is provided with cavity 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 also is provided with through hole,The through hole that above-mentioned left and right is run through all connects with the cavity at big valve flap 9 center with the through hole of bottom surface,The cavity of big valve flap 9 arranges little flap 10,Little flap 10 shape foremost and the form fit of through hole on big valve flap 9 bottom surface,The lateral 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 fixing with valve rod 3 to be connected,And can move up and down under the drive of valve rod 3,On the top of big valve flap 9, clamp nut 12 is set,Clamp nut 12 is connected by screw 13 is fixing with big valve flap 9.

Claims (5)

1. an ADS Automatic Depressurization System valve, it is characterised in that: include 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;Being provided above valve gap (4) at valve body (1), valve gap (4) is provided above support (6), and support (6) is provided above actuator (8);Described valve rod (3) runs through valve gap (4) and support (6) is connected with actuator (8), and actuator (8) can rotate by band ovable valve stem (3).
null2. a kind of ADS Automatic Depressurization System valve as claimed in claim 1,It is characterized in that: flap assembly (2) includes big valve flap (9)、Little flap (10)、Spring (11)、Clamp nut (12)、Screw (13) and valve rod (3),The shell that wherein big valve flap (9) is flap assembly (2),The cavity shape of the external surface shape of big valve flap (9) and valve body (1) matches,It is provided with cavity 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) also is provided with through hole,The through hole that above-mentioned left and right is run through all connects with the cavity at big valve flap (9) center with the through hole of bottom surface,The cavity of big valve flap (9) arranges little flap (10),Little flap (10) shape foremost and the form fit of through hole on big valve flap (9) bottom surface,The lateral 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 fixing with valve rod (3) to be connected,And can move up and down under the drive of valve rod (3),On the top of big valve flap (9), clamp nut (12) is set,Clamp nut (12) is connected by screw (13) and big valve flap (9) are fixing.
3. a kind of ADS Automatic Depressurization System valve as claimed in claim 1 or 2, it is characterised in that: flap assembly (2) and the contact surface of valve body (1) arrange spigot surface hard alloy (16).
4. a kind of ADS Automatic Depressurization System valve as claimed in claim 1 or 2, it is characterised 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, it is characterised in that: on support (6), it is provided with position indicator assembly (7).
CN201410802670.5A 2014-12-22 2014-12-22 Automatic depressurization system (ADS) valve Pending CN105782470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410802670.5A CN105782470A (en) 2014-12-22 2014-12-22 Automatic depressurization system (ADS) valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410802670.5A CN105782470A (en) 2014-12-22 2014-12-22 Automatic depressurization system (ADS) valve

Publications (1)

Publication Number Publication Date
CN105782470A true CN105782470A (en) 2016-07-20

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ID=56386162

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Application Number Title Priority Date Filing Date
CN201410802670.5A Pending CN105782470A (en) 2014-12-22 2014-12-22 Automatic depressurization system (ADS) valve

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CN (1) CN105782470A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773085A (en) * 1971-01-14 1973-11-20 Westinghouse Electric Corp Noise suppressing throttling valve
AT502342A2 (en) * 2005-08-16 2007-03-15 F W Oventrop Gmbh & Co Kg VALVE
CN101625033A (en) * 2009-08-05 2010-01-13 无锡卓尔阀业有限公司 Water supply control valve for high-pressure boiler
CN102278504A (en) * 2011-06-27 2011-12-14 上海阀门厂有限公司 Atmosphere discharge valve
CN202274126U (en) * 2011-09-05 2012-06-13 浙江盾安禾田金属有限公司 Electronic expansion valve
CN103939624A (en) * 2014-05-09 2014-07-23 杭州华惠阀门有限公司 Reducing valve
CN103953742A (en) * 2014-05-05 2014-07-30 武汉科技大学 Y-shaped large-diameter stop valve
CN204372201U (en) * 2014-12-22 2015-06-03 中核苏阀科技实业股份有限公司 ADS Automatic Depressurization System valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773085A (en) * 1971-01-14 1973-11-20 Westinghouse Electric Corp Noise suppressing throttling valve
AT502342A2 (en) * 2005-08-16 2007-03-15 F W Oventrop Gmbh & Co Kg VALVE
CN101625033A (en) * 2009-08-05 2010-01-13 无锡卓尔阀业有限公司 Water supply control valve for high-pressure boiler
CN102278504A (en) * 2011-06-27 2011-12-14 上海阀门厂有限公司 Atmosphere discharge valve
CN202274126U (en) * 2011-09-05 2012-06-13 浙江盾安禾田金属有限公司 Electronic expansion valve
CN103953742A (en) * 2014-05-05 2014-07-30 武汉科技大学 Y-shaped large-diameter stop valve
CN103939624A (en) * 2014-05-09 2014-07-23 杭州华惠阀门有限公司 Reducing valve
CN204372201U (en) * 2014-12-22 2015-06-03 中核苏阀科技实业股份有限公司 ADS Automatic Depressurization System valve

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Application publication date: 20160720

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