CN204288820U - The comprehensive backup system of a kind of containment access lock - Google Patents
The comprehensive backup system of a kind of containment access lock Download PDFInfo
- Publication number
- CN204288820U CN204288820U CN201420591748.9U CN201420591748U CN204288820U CN 204288820 U CN204288820 U CN 204288820U CN 201420591748 U CN201420591748 U CN 201420591748U CN 204288820 U CN204288820 U CN 204288820U
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- Prior art keywords
- pressure
- gate
- valve
- line
- access lock
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- 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
Abstract
The utility model belongs to nuclear power plant design technology, is specifically related to the comprehensive backup system of a kind of containment access lock.This system comprises the pressure pipeline and relief line that run through gate exterior door frame, pressure pipeline and relief line are respectively equipped with and add pressure electromagnetic valve and vacuum solenoid valve, side, the upstream pressure pipeline adding pressure electromagnetic valve is connected with compressed air line, side, the downstream relief line of vacuum solenoid valve communicates with power house environment outside gate, and gate is provided with pressure unit in cabin; A branch road of described compressed air line is provided with the hose with joint for carrying out gate sealing propertytest, and compressed air line is provided with the valve controlling respective line break-make; The electric control unit being arranged on control desk controls the solenoid valve in system.The utility model is by integrated to the pressurization/decompression of gate, urgent air supply and partially sealed some measuring ability, and optimal design, simplifies the operation, and improves personnel safety.
Description
Technical field
The utility model belongs to nuclear power plant design technology, be specifically related to a kind of realize gate plus/minus pressure, urgent air supply and partially sealed detection the comprehensive backup system of containment access lock.
Background technology
Nuclear power station access lock, as the ingredient of containment vessel, should have following functions when nuclear power station runs: 1. keep radiomaterial not leak in containment; 2. limit ionization radiation is from control zone boundary leaking; 3. personal security turnover containment is guaranteed; 4. when containment carries out sealing and strength test, as pressurization/decompression chamber.
Access lock is designed to double-channel door body for this reason, each body arranges mechanical penetration piece and electrical penetration, and seals, to realize its specific function.
Pressurization/decompression chamber function refers to, during containment carries out sealing and strength test, personnel need to enter in containment under specific normal pressure to check.In order to avoid, pressure change is too fast to be damaged personnel, personnel are needed to be introduced in the body of gate cabin, close inside and outside door, slowly pressure in the body of cabin is risen to pressure in containment by pressurizing valve, when in the body of gate cabin, in pressure and containment, pressure is basically identical, open the inside door of access lock, personal security is entered in containment.
When personnel exit containment, needing personnel to be introduced in the body of gate cabin equally, close inside and outside door, by slowly reducing in the body of cabin near pressure to external atmosphere pressure with the reduction valve communicated in the body of gate cabin, then opening access lock external door.
Meanwhile, be checking access lock overall tightness, need to utilize pressurization/relief line to carry out pressurising to gate cabin body and measure sealing.Current access lock adopts the pressurization/relief line needing dismounting usually, installs when needs use, not used time dismounting also shutoff machinery penetration piece.
If personnel are period in the body of gate cabin, gate breaks down, electronic, manually all cannot starting gate, cannot solve again in the short time.Because access lock itself has the function preventing air leakage, gate cabin body forms confined space, and in the body of cabin, personnel because lacking oxygen supply, personal security accident can occur.Current access lock does not consider how this kind of accident conditions ensure personnel's life security usually.
Keep the function that do not leak in containment of radiomaterial because access lock has, therefore the partially sealed point such as all kinds of penetration pieces, door body sealing ring on access lock overall tightness and doorframe needs regularly to detect, to verify gate sealing.Assigned personnel's gate adopts independent partially sealed pick-up unit usually.
Utility model content
The purpose of this utility model is that providing a kind of integrates the comprehensive backup system of containment access lock that pressurization/decompression, urgent air supply and local seal point detect several function, realizes optimal design, simplifies the operation, and improve personnel safety.
The technical solution of the utility model is as follows: the comprehensive backup system of a kind of containment access lock, described access lock comprises inside door and external door, it is gate cabin between inside door and external door, wherein, this system comprises the pressure pipeline and relief line that run through gate exterior door frame, pressure pipeline and relief line are respectively equipped with and add pressure electromagnetic valve and vacuum solenoid valve, side, the upstream pressure pipeline adding pressure electromagnetic valve is connected with compressed air line, side, the downstream relief line of vacuum solenoid valve communicates with power house environment outside gate, and gate is provided with pressure unit in cabin; A branch road of described compressed air line is provided with the hose with joint for carrying out gate sealing propertytest, and compressed air line is provided with the valve controlling respective line break-make; The electric control unit being arranged on control desk controls the solenoid valve in system.
Further, the comprehensive backup system of containment access lock as above, wherein, safety valve compressed air line is provided with the filtering pressure reducing valve for adjusting bleed pressure, avoiding system pressure to transfinite and system decompression valve, and be provided with the tensimeter for showing line pressure.
Further, the comprehensive backup system of containment access lock as above, wherein, the pressure electromagnetic valve that adds that described electric control unit controls on pressure pipeline is opened, and the vacuum solenoid valve on relief line is closed, and realizes pressurization function in gate cabin; Or electric control unit controls the pressurization closed electromagnetic valve on pressure pipeline, the vacuum solenoid valve on relief line is opened, and realizes gate cabin decompression.
Further, the comprehensive backup system of containment access lock as above, wherein, the vacuum solenoid valve added on pressure electromagnetic valve unlatching and relief line that described electric control unit controls on pressure pipeline is opened simultaneously, realizes to the supply of gate cabin containing the compressed-air actuated function of oxygen.
Further, the comprehensive backup system of containment access lock as above, wherein, described electric control unit controls the valve opening on compressed air line branch road, by hose with joint to access lock everywhere partially sealed point carry out sealing propertytest.
The beneficial effects of the utility model are as follows: access lock adopts the pressurization/relief line needing dismounting usually at present, install when needs use, and the used time does not dismantle and shutoff machinery penetration piece; Partially sealed measuring ability needs additional partially sealed checkout equipment to carry out pressure adjusting and measuring ability; And do not consider emergent air supply.The comprehensive backup system of containment access lock provided by the utility model by pressurization/decompression, partially sealed measuring ability and emergent air functions of physical supply integrated, optimal design, simplifies the operation, improve personnel safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of the comprehensive backup system of containment access lock in the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
The comprehensive backup system of containment access lock provided by the utility model achieves the pressurization/decompression of nuclear power station access lock, urgent air supply and partially sealed detection.Described access lock comprises inside door and external door, and the confined space that inside door, external door, interior doorframe, exterior door frame and shell ring surround is gate cabin.
The comprehensive backup system main body of containment access lock is arranged on outside access lock, by necessity on-off valve 1,4,9,10, filtering pressure reducing valve 2, safety valve 3, tensimeter 5, add pressure electromagnetic valve 6, sound suppressor 7, vacuum solenoid valve 8, rapid-acting coupling 11, the flexible pipe 12 of belt lacing, pressure unit 13, electric control unit 18 and necessity pipeline form.Pressure pipeline, relief line run through gate exterior door frame 14.Concrete structure is shown in accompanying drawing 1.
System gas source inlet is connected with stream compression air pipe line, and pressure is P1; Bleed pressure is adjusted to P2 from P1 by filtering pressure reducing valve 2, and pressure P 2 sets according to access lock functional requirement; Safety valve 3 is set, set-pressure P3, avoids pressure in system to exceed design load; Tensimeter 5 is on the spot set, display line pressure.Above device can pressurize/reduce pressure for access lock, urgent air supplies and partially sealed some detection system prepares applicable clean compressed air.Valve 1,4,9 controls the break-make of respective line respectively, and valve 10 is native system pressure release.
System pressurization/decompression is characterised in that:
Add pressure electromagnetic valve 6 side to be connected with in the body of gate cabin by the threaded hole on gate doorframe; Opposite side is connected with stream compression air pipe line.
Vacuum solenoid valve 8 side is connected with in the body of gate cabin by the threaded hole on gate doorframe; Opposite side communicates with power house environment outside gate.
Pressure unit 13 is set in the body of cabin, for pressure data in feedback, transmission cabin body to control desk outside gate.Control to add that pressure electromagnetic valve 6 is opened, vacuum solenoid valve 8 is closed by electric control unit 18, realize the function to the pressurization of access lock cabin body; Control adds that pressure electromagnetic valve 6 is closed, vacuum solenoid valve 8 is opened, and is embodied as the function of access lock cabin body decompression.
Meanwhile, when access lock carries out overall tightness test, this function can be used for pressurising that overall tightness detects, pressurize and decompression.
System emergency air functions of physical supply is characterised in that:
Control to add pressure electromagnetic valve 6 by electric control unit 18, vacuum solenoid valve 8 is opened simultaneously, realize supply in the body of gate cabin and, containing oxygen pressurized air, replace the function of air in the body of cabin.
System partially sealed some measuring ability is characterised in that:
Valve 9 control branch road, hose with joint 12 is set, for access lock everywhere partially sealed point carry out sealing propertytest.Make full use of and play the function of native system, simplify structure and improve plant factor.
During partially sealed detection, valve 1, valve 4, valve 9, valve 10 are in closed condition, are connected by the joint of flexible pipe 12 with check point; Open valve 1; With filtering pressure reducing valve 2, pipeline inner pressure is adjusted to test pressure; Open valve 9, can fill pressurized air to check point; Concrete detection method is pressure decline method; Acceptance criteria requires to determine according to specific design.After off-test, valve-off 1; Open valve 10 gets rid of pipeline compressed air.
Further, described control desk, be access lock display, parametric controller, electric control unit 18 is integrated in control desk.Control desk can be checked pressure in the body of gate cabin, the keying of Controlling solenoid valve.
Native system by pressurization/decompression, partially sealed measuring ability and emergent air functions of physical supply integrated, optimal design, simplifies the operation.If personnel are period in the body of gate cabin, gate breaks down, electronic, manually all cannot starting gate, cannot solve again in the short time.Urgent air functions of physical supply can the life security of support personnel.
Obviously, those skilled in the art can carry out various change and modification (such as the form of valve changed, transform etc. Starting mode) to the utility model and not depart from spirit and scope of the present utility model.Like this, if belong within the scope of the utility model claim and equivalent technology thereof to these amendments of the present utility model and modification, then the utility model is also intended to comprise these change and modification.
Claims (5)
1. the comprehensive backup system of containment access lock, described access lock comprises inside door and external door, it is gate cabin between inside door and external door, wherein, this system comprises the pressure pipeline and relief line that run through gate exterior door frame, pressure pipeline and relief line are respectively equipped with and add pressure electromagnetic valve and vacuum solenoid valve, side, the upstream pressure pipeline adding pressure electromagnetic valve is connected with compressed air line, side, the downstream relief line of vacuum solenoid valve communicates with power house environment outside gate, and gate is provided with pressure unit in cabin; A branch road of described compressed air line is provided with the hose with joint for carrying out gate sealing propertytest, and compressed air line is provided with the valve controlling respective line break-make; The electric control unit being arranged on control desk controls the solenoid valve in system.
2. the comprehensive backup system of containment access lock as claimed in claim 1, it is characterized in that: the safety valve be provided with the filtering pressure reducing valve for adjusting bleed pressure on compressed air line, avoiding system pressure to transfinite and system decompression valve, and be provided with the tensimeter for showing line pressure.
3. the comprehensive backup system of containment access lock as claimed in claim 1 or 2, it is characterized in that: the pressure electromagnetic valve that adds that described electric control unit controls on pressure pipeline is opened, vacuum solenoid valve on relief line is closed, and realizes pressurization function in gate cabin; Or electric control unit controls the pressurization closed electromagnetic valve on pressure pipeline, the vacuum solenoid valve on relief line is opened, and realizes gate cabin decompression.
4. the comprehensive backup system of containment access lock as claimed in claim 1 or 2, it is characterized in that: the vacuum solenoid valve added on pressure electromagnetic valve unlatching and relief line that described electric control unit controls on pressure pipeline is opened simultaneously, realizes to the supply of gate cabin containing the compressed-air actuated function of oxygen.
5. the comprehensive backup system of containment access lock as claimed in claim 1 or 2, it is characterized in that: described electric control unit controls the valve opening on compressed air line branch road, by hose with joint to access lock everywhere partially sealed point carry out sealing propertytest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420591748.9U CN204288820U (en) | 2014-10-14 | 2014-10-14 | The comprehensive backup system of a kind of containment access lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420591748.9U CN204288820U (en) | 2014-10-14 | 2014-10-14 | The comprehensive backup system of a kind of containment access lock |
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| Publication Number | Publication Date |
|---|---|
| CN204288820U true CN204288820U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420591748.9U Active CN204288820U (en) | 2014-10-14 | 2014-10-14 | The comprehensive backup system of a kind of containment access lock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361911A (en) * | 2014-10-14 | 2015-02-18 | 中国核电工程有限公司 | Comprehensive auxiliary system for personnel air lock of containment |
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2014
- 2014-10-14 CN CN201420591748.9U patent/CN204288820U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361911A (en) * | 2014-10-14 | 2015-02-18 | 中国核电工程有限公司 | Comprehensive auxiliary system for personnel air lock of containment |
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| GR01 | Patent grant |