CN202812272U - Valve used for reactor core neutron fluence rate measurement system - Google Patents
Valve used for reactor core neutron fluence rate measurement system Download PDFInfo
- Publication number
- CN202812272U CN202812272U CN2012202423168U CN201220242316U CN202812272U CN 202812272 U CN202812272 U CN 202812272U CN 2012202423168 U CN2012202423168 U CN 2012202423168U CN 201220242316 U CN201220242316 U CN 201220242316U CN 202812272 U CN202812272 U CN 202812272U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- groove
- reactor core
- fluence rate
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Lift Valve (AREA)
Abstract
The utility model belongs to a nuclear-safety-level ball valve used for a reactor core neutron fluence rate measurement system. The valve comprises a valve body, wherein a cavity of the valve body is internally provided with a ball body, the ball body is externally provided with a soft valve pedestal, the soft valve pedestal is arranged in a valve pedestal, a groove is formed in the valve pedestal, an O-shaped ring and a check ring are arranged in the groove, the valve pedestal is externally provided with a disc spring, a side cover is arranged on the outer side of the disc spring and is fixedly connected with the valve body, a valve rod is arranged at the upper end of the ball body, an O-shaped ring and a check ring are arranged on the valve body between the valve rod and the valve body, a cylindrical boss of the valve rod is provided with a groove, a thrust washer is arranged in the groove, a guide ring is arranged at the upper end of the valve rod, and the guide ring is sleeved with a support cover. The valve has the advantages that the valve body is a two-body floating nuclear power ball valve, and the valve is good in rigidity, excellent in anti-seismic property, long in service life and convenient for installation and maintenance and is suitable for the reactor core neutron fluence rate measurement system.
Description
Technical field
The utility model belongs to a kind of valve mechanism, is specifically related to a kind of nuclear safe level ball valve for reactor core neutron fluence rate measuring system.
Background technique
Reactor core neutron measurement system is an important component part of power station detection system, and the neutron fluence rate that it mainly measures reactor core distributes, the distortion of monitoring core power, and accumulation burnup data are one of key equipments of nuclear power station.In the built pressurized-water reactor nuclear power plant, this equipment relies on import for a long time at home.Manually operated valve, mortor operated valve belong to C3C4 reactor core neutron and annotate the measuring system critical valves, and technical requirements is tight, safety coefficient is high, and domestic still do not possess design, manufacturing capacity.
Summary of the invention
The purpose of this utility model provides the reactor core neutron fluence rate measuring system valve of a kind of superior performance, compact structure, good seal performance.
The utility model is to realize like this, a kind of reactor core neutron fluence rate measuring system valve, it comprises valve body, be provided with spheroid in the cavity of valve body, spheroid is provided with soft valve seat outward, and soft valve seat is located in the valve seat, has groove on the valve seat, and in groove, be provided with O shape circle and back-up ring, the outside of valve seat is provided with the dish spring, and the outside of dish spring is side cover, and side cover is fixedly connected with valve body, the upper end of spheroid is provided with valve rod, be provided with O shape circle and back-up ring at valve body between valve rod and the valve body, have groove on the cylindrical boss of valve rod, be provided with thrust pad in the groove, the upper end of valve rod is provided with guide ring, and guide ring is arranged with supporting cover outward.
Described supporting cover is located on the valve seat, and the upper end portion of valve rod is connected with handle set, and a side of handle set has through hole, be provided with spring in the through hole, spring housing is on locating stud, and locating stud is connected with supporting cover, locating stud is provided with nut, and the opposite side of handle set is fixed with pull bar.
Described supporting cover upper end has been bolted Denso.
The joint of described valve body side is equipped with gasket seal.
The utility model has the advantages that valve body is the unsteady nuclear power ball valve of double-body bike, the valve good rigidly, excellent earthquake resistance, long service life, convenient for installation and maintenance, be applicable to the reactor core neutron and annotate measuring system.
Description of drawings
Fig. 1 is a kind of reactor core neutron fluence rate measuring system valve schematic representation provided by the utility model;
Fig. 2 is movable valve stand structure schematic representation;
Fig. 3 is a kind of reactor core neutron fluence rate measuring system mortor operated valve schematic representation.
Among the figure, 1 valve body, 2 spheroids, 3 soft valve seats, 4 valve seats, 5O shape circle, 6 back-up rings, 7 dish springs, 8 side covers, 9O shape circle, 10 back-up rings, 11 thrust pads, 12O shape circle, 13 pads, 14 valve rods, 15 screws, 16 supporting covers, 17 guide rings, 18 handle sets, 19 screws, 20 locating studs, 21 nuts, 22 springs, 23 pads, 24 pull bars, 28 bolts, 29 Densos, 30 gasket seals.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
The utility model comprises following main structure: 1) valve body is the solid forging structure, has guaranteed anti-seismic performance, reduces leakage point.2) full-bore design has the characteristics such as flow is sufficient, flow resistance is little, pressure surge is little, makes valve have good trafficability performance.3) multi-sealing structure has formed the sealing system at high reliability valve rod and lumen place.5) open and close rapidly flexibly electric actuator.
As shown in Figure 1, a kind of reactor core neutron fluence rate measuring system manually operated valve comprises the valve body 1 with cavity structure, be equipped with spheroid 2 in the cavity of valve body 1, be set with soft valve seat 3 outside the spheroid 2, soft valve seat 3 is installed in the valve seat 4, have groove on the valve seat 4, and O shape circle 5 and back-up ring 6 be installed in groove, the outer cover of valve seat 4 has dish spring 7, the outside of dish spring 7 is side cover 8, side cover 8 is fixedly connected with valve body 1, the upper end of spheroid 2 is connected with the valve rod 14 that has the cylinder boss structure in the middle of the elongated rod shape, at valve body 1 O shape circle 9 and back-up ring 10 are installed between valve rod 14 and the valve body 1, have groove on the cylindrical boss of valve rod 14, thrust pad 11 is installed in the groove, valve rod 14 upper end cover guide ring 17 is arranged, between guide ring 17 and the valve rod 14 pad 13 is installed, be set with supporting cover 16 outside the guide ring 17, supporting cover 16 is fixed on the valve seat 1 by screw 15, and the upper end portion of valve rod 14 is connected with handle set 18, one side of handle set 18 has through hole, be fixed with spring 22 in the through hole, spring 22 is enclosed within on the locating stud 20, and locating stud 20 is connected with supporting cover 16, be fixed with nut 21 by screw 19 on the locating stud 20, the opposite side of handle set 18 is fixed with pull bar 24.
As shown in Figure 3, a kind of reactor core neutron fluence rate measuring system mortor operated valve comprises the valve body 1 with cavity structure, be equipped with spheroid 2 in the cavity of valve body 1, be set with soft valve seat 3 outside the spheroid 2, soft valve seat 3 is installed in the valve seat 4, have groove on the valve seat 4, and O shape circle 5 and back-up ring 6 be installed in groove, the outer cover of valve seat 4 has dish spring 7, the outside of dish spring 7 is side cover 8, side cover 8 is fixedly connected with valve body 1, the upper end of spheroid 2 is connected with the valve rod 14 that has the cylinder boss structure in the middle of the elongated rod shape, at valve body 1 thrust pad 11 is installed between valve rod 14 and the valve body 1, has groove on the cylindrical boss of valve rod 14, O shape circle 12 is installed in the groove, valve rod 14 upper end cover guide ring 17 is arranged, between guide ring 17 and the valve rod 14 pad 13 is installed, is set with supporting cover 16 outside the guide ring 17, supporting cover 16 upper ends are fixed with Denso 29 by bolt 28.The joint of valve body 1 side is equipped with gasket seal 30.
Body cavity passage in the utility model seamlessly transits, and has avoided fluid by valve larger disturbance to occur, and produces turbulent flow, increases flow resistance, thereby the pressure loss of valve is reduced as far as possible, makes valve have preferably negotiability.
Manually operated valve double-body bike all-welded structure such as Fig. 1, uses welded structure between valve body and the side cover, and with respect to the solid forging valve body, this structure has been saved valve body material greatly, has reduced the manufacture cost of model machine.Simultaneously the resistivity of pipe bending and extruding strengthened.Owing to cancelled valve flange and bolt, boundary dimension obviously reduces.
The integral type fire protection design, prevent that soft seal was lost efficacy after, leak in valve produces.Eliminated the potential passage that leaks outside, sealingly secure is reliable.
Upper dress formula stem structure.Rapidly simple in the pipeline dismounting, easy to maintenance quick.When valve rod breaks down when need repairing at pipeline, need only dismantle compresses the screw bolt and nut of valve rod, and the valve rod group component is taken off from valve body together, and the time has been saved in this maintenance, and the loss in producing is dropped to minimum point.
Multi-sealed, prevent valves leakage and leak outside.Spheroid 2, soft valve seat 3, valve seat 4, dish spring 7 have consisted of the main sealing of this valve.Soft valve seat adopts the PEEK(Chinese polyether-ether-ketone of function admirable) material is that PEEK is to metal sealing.PEEK has good self lubricity, friction factor is little, and stability in use is good.And these advantages are confirmed in other nuclear power valve designs of our factory.Between lumen valve stem seal, side cover and the valve body, adopt respectively O type circle to seal between valve seat and the valve body, O type circle adopts fluorine rubber, and sealing is reliable.
As shown in Figure 2, the movable valve stand structure of dish spring loading.Formed by spheroid, soft valve seat, valve seat, dish spring, different from the conventional softer seal floating ball valve on the other hand, its valve seat of conventional softer seal floating ball valve is fixed structure normally, spheroid floats, rely on medium power sealing (being the more high easier sealing of pressure), easily like this cause occuring easily between valve seat and the spheroid jam or obscission.And the movable valve stand structure that the dish spring loads can provide the required initial specific pressure of sealing, be convenient to install, prevent valve seat and the problems such as spheroid jam or disengaging, and sealing is reliable, long service life.
Stem material is used high-intensity precipitation hardening steel 17-4PH instead; For reducing the friction torque of lumen valve rod and pad, the gasket seal at valve rod place is changed to seal with O ring, pad only plays the thrust effect and does not seal.
The material of valve body, valve gap adopts SA-A182M F304L/F316L; The material of spheroid adopts SA-A182M F304L/F316L; Stem material adopts SA-705M 630 (17-4PH), other component material selection the decay resistance material suitable with valve body material, meet the demands.
O type circle adopts the Kalrez FFKM; Valve seat, bearing adopt PEEK.
Claims (4)
1. reactor core neutron fluence rate measuring system valve, it is characterized in that: it comprises valve body (1), be provided with spheroid (2) in the cavity of valve body (1), the outer soft valve seat (3) that is provided with of spheroid (2), soft valve seat (3) is located in the valve seat (4), valve seat has groove on (4), and in groove, be provided with O shape circle (5) and back-up ring (6), the outside of valve seat (4) is provided with dish spring (7), the outside of dish spring (7) is side cover (8), side cover (8) is fixedly connected with valve body (1), the upper end of spheroid (2) is provided with valve rod (14), be provided with O shape circle (9) and back-up ring (10) at valve body (1) between valve rod (14) and the valve body (1), have groove on the cylindrical boss of valve rod (14), be provided with thrust pad (11) in the groove, the upper end of valve rod (14) is provided with guide ring (17), the outer supporting cover (16) that is arranged with of guide ring (17).
2. a kind of reactor core neutron fluence rate measuring system valve as claimed in claim 1, it is characterized in that: described supporting cover (16) is located on the valve seat (1), the upper end portion of valve rod (14) is connected with handle set (18), one side of handle set (18) has through hole, be provided with spring (22) in the through hole, spring (22) is enclosed within on the locating stud (20), locating stud (20) is connected with supporting cover (16), locating stud (20) is provided with nut (21), and the opposite side of handle set (18) is fixed with pull bar (24).
3. a kind of reactor core neutron fluence rate measuring system valve as claimed in claim 1 is characterized in that: be fixed with Denso (29) by bolt (28) on the described supporting cover (16).
4. a kind of reactor core neutron fluence rate measuring system valve as claimed in claim 3, it is characterized in that: the joint of described valve body (1) side is equipped with gasket seal (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202423168U CN202812272U (en) | 2012-05-28 | 2012-05-28 | Valve used for reactor core neutron fluence rate measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202423168U CN202812272U (en) | 2012-05-28 | 2012-05-28 | Valve used for reactor core neutron fluence rate measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812272U true CN202812272U (en) | 2013-03-20 |
Family
ID=47871142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202423168U Expired - Lifetime CN202812272U (en) | 2012-05-28 | 2012-05-28 | Valve used for reactor core neutron fluence rate measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812272U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453172A (en) * | 2012-05-28 | 2013-12-18 | 中核苏阀科技实业股份有限公司 | Valve for reactor core neutron fluence rate measuring system |
| CN103470803A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Electric ball valve applied to high-temperature gas cooled reactor |
| CN103742664A (en) * | 2013-11-28 | 2014-04-23 | 成都欧浦特控制阀门有限公司 | Ball valve with sealing performance improving function |
| CN107269877A (en) * | 2017-07-26 | 2017-10-20 | 昆山维萨阀门有限公司 | A kind of integral type HTHP seal ball-valve |
-
2012
- 2012-05-28 CN CN2012202423168U patent/CN202812272U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453172A (en) * | 2012-05-28 | 2013-12-18 | 中核苏阀科技实业股份有限公司 | Valve for reactor core neutron fluence rate measuring system |
| CN103470803A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Electric ball valve applied to high-temperature gas cooled reactor |
| CN103742664A (en) * | 2013-11-28 | 2014-04-23 | 成都欧浦特控制阀门有限公司 | Ball valve with sealing performance improving function |
| CN107269877A (en) * | 2017-07-26 | 2017-10-20 | 昆山维萨阀门有限公司 | A kind of integral type HTHP seal ball-valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202812272U (en) | Valve used for reactor core neutron fluence rate measurement system | |
| CN103453172A (en) | Valve for reactor core neutron fluence rate measuring system | |
| WO2010091014A2 (en) | Degassing valve and check valve combination | |
| CN113653824A (en) | Scouring-resistant ball valve | |
| CN113202946A (en) | Ultra-low temperature deep cooling type upper assembling ball valve with built-in pressure release valve | |
| CN202612682U (en) | Spherical-surface linear-sealing corrugated pipe stop valve | |
| CN102606760A (en) | Nuclear class I electric ball valve | |
| CN201437852U (en) | Top entry type pneumatic ball valve | |
| CN106523729A (en) | Low-temperature top-assembling type fixed ball valve | |
| CN207421377U (en) | Wear-resistant manual high temperature and pressure drainage spherical valve | |
| CN101893110A (en) | Top entry inclined pneumatic ball valve | |
| CN206904312U (en) | A kind of extraction check valve | |
| CN102809009A (en) | Double-bearing maintenance-free rotary compensator | |
| CN215673691U (en) | Ultra-low temperature deep cooling type upper assembling ball valve with built-in pressure release valve | |
| CN205026135U (en) | Low temperature upper assembling type fixes ball valve | |
| CN201407383Y (en) | Uploading oblique ball type pneumatic ball valve | |
| CN211449730U (en) | Ball valve with self-checking function | |
| CN203463741U (en) | Low-pressure large-diameter safety valve | |
| CN202834350U (en) | Position indication device for movable sealing ring of water inlet valve in hydropower station | |
| CN111677895A (en) | Multi-bypass pressure relief type gate valve of high-pressure forge welding structure for nuclear power | |
| CN218094354U (en) | Two-piece type fixed ball valve | |
| CN202349241U (en) | Self-pollution discharge flow regulating valve | |
| CN205605930U (en) | Novel improve cage type adjusting valve of structure | |
| CN202501022U (en) | Novel meter diaphragm valve | |
| CN209146346U (en) | A kind of three-eccentric-butterfly-valve for capableing of noise reduction |
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: 20130320 |