CN101071654B - Single-point contact type sodium leakage detector for sodium-cooled fast reactor main container - Google Patents
Single-point contact type sodium leakage detector for sodium-cooled fast reactor main container Download PDFInfo
- Publication number
- CN101071654B CN101071654B CN2007101112574A CN200710111257A CN101071654B CN 101071654 B CN101071654 B CN 101071654B CN 2007101112574 A CN2007101112574 A CN 2007101112574A CN 200710111257 A CN200710111257 A CN 200710111257A CN 101071654 B CN101071654 B CN 101071654B
- Authority
- CN
- China
- Prior art keywords
- sodium
- sheath
- sheathed cable
- detector
- fast reactor
- 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
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 32
- 239000011734 sodium Substances 0.000 title claims abstract description 32
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 31
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 7
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 238000005253 cladding Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000005476 soldering Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 244000137852 Petrea volubilis Species 0.000 claims description 2
- 239000008393 encapsulating agent Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 230000008439 repair process Effects 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 abstract 2
- 238000007689 inspection Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001152 Bi alloy Inorganic materials 0.000 description 1
- 229910003251 Na K Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 150000003385 sodium Chemical class 0.000 description 1
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
Abstract
The invention discloses a single-point contact type sodium leakage detector for a sodium-cooled fast reactor main container. The detector is made of a stainless steel cladding and an alumina insulated stainless steel double-core armored cable, a double-core conductor is spliced and welded and then placed in a front-end protective sleeve, 4 sodium inlet holes which are arranged into 2 layers are formed in the side face of the protective sleeve to prevent a head cavity from being suffocated, and a welding point of the conductor is insulated from the cladding. Such a probe is easy to install in an elongated catheter without damaging the probe, since the head contact is protected by the sheath. The method can be used for in-service inspection and is suitable for detecting the sodium leakage of the main container of the sodium-cooled fast reactor. Such a detector can withstand long-term exposure to high temperatures up to 600 ℃.
Description
Technical field
The invention belongs to liquid metal Detection Techniques field, be specifically related to a kind of sodium-cooled fast reactor mainvessel single-point contact type sodium leak detector.
Background technology
The heap container of sodium-cooled fast reactor is by the double-layer thin wall container---and primary tank and protection container constitute, and are filled with a large amount of high-temperature liquid state sodium in the primary tank.Consider the security of reactor, need in the mezzanine space of primary tank and protection container, sodium leak detector to be set, whether have the sodium leakage accident, concurrent accidents happened alerting signal so that survey primary tank.Surveying the Liquid Sodium leakage at present employed mostly is to electrically contact the formula detector, and its ultimate principle is very simple, and promptly when the sodium that leaks contacted with electrode, external circuit was connected, and sends alerting signal.The sodium leak detector that is arranged in sodium-cooled fast reactor primary tank and the protection container interlayer reaches more than ten meter; belong to security-related level equipment; at present used sodium leak detector exists can not be in the function of labour check; the unshielded shortcoming of detector head can not be used for the primary tank of sodium-cooled fast reactor and the sodium leakage in the protection container interlayer and survey.
Summary of the invention
The present invention is directed to sodium detector of the prior art and be unsuitable for the problem of long-range detection sodium leakage in the interlayer of the primary tank of sodium-cooled fast reactor and protection container, provide a kind of simple in structure, safe and reliable, easy for installation, can be at the sodium-cooled fast reactor primary tank sodium leak detector of labour check.
A kind of sodium-cooled fast reactor mainvessel single-point contact type sodium leak detector; be to make by the tinsel of two one end hinge joint back welding; key is; two used one metal wires of the present invention are the double wired conductor of a twin-core stainless steel sheathed cable; solder contacts places in the head sheath with holes, and insulate with protective sleeve.
Described sheathed cable is to be that cladding materials, aluminium oxide are the twin-core sheathed cable of insulation with the stainless steel.
Therefore the detector of this structure is convenient to install in slender conduit because head contact is protected by the head sheath, and can defective detector.Can bear long term, the reliability height up to 600 ℃ of high temperature.Be applicable to the detection of sodium-cooled fast reactor primary tank sodium leakage.
Description of drawings
Fig. 1 sodium-cooled fast reactor mainvessel single-point contact type sodium leak detector structural drawing;
The cut-open view of B-B position among Fig. 2 Fig. 1;
The cut-open view of A-A position among Fig. 3 Fig. 1;
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 represents sodium-cooled fast reactor mainvessel single-point contact type sodium leak detector structural drawing.Be that cladding materials, aluminium oxide are that two heart yearns (8) in the twin-core sheathed cable (4) of insulation are peeled off out from sheathed cable (4) head with the stainless steel, through sand paper beat bright after the hinge joint, and forming solder contacts with argon arc welding, the heart yearn after the hinge joint (8) puts sleeve pipe (7).In order to prevent contact and sheathed cable (4) shell short circuit, sleeve pipe (7) is inserted in by sintering Al
2O
3In the insulating sleeve of making (5).Be inserted in head sheath (6) again in insulating sleeve (5) outside.The shell of head sheath (6) and sheathed cable (4) fills silk after molten boxing with argon arc welding method at the Q place and repairs smoothly.Head sheath (6) front end side has 4 along short transverse and enters sodium hole (10), and 4 are entered sodium hole (10) and divide 2 layers of layout along short transverse.The effect of entering sodium hole (10) is that the inner chamber that allows liquid metal sodium freely enter head sheath (6) touches the hinge joint contact of heart yearn (8), and prevents that inner chamber from feeling suffocated.
The detector afterbody has 3 and draws lead, wherein draw lead (9) and be connected with soldering for one with tail end sheath (3) outer wall, draw lead (1) and be connected with soldering with the heart yearn (8) of sheathed cable respectively for other 2, finish draw wire bonds after, tail end sheath (3) is inserted in sheathed cable (4) and forms girth joint at the P place with argon arc welding.With the cavity of epoxy resin as encapsulant (2) filling tail end sheath (3).So just made single-point contact sodium leak detector.
Sodium-cooled fast reactor primary tank sodium leakage signal is the security-related level parameter that need carry out manual shutdown, according to the nuclear safety guide rule for security-related instrument testability---can labour test requirements, need regularly sodium leak detector to be tested, so that confirm the availability of this sodium leak detector.Sodium leak detector of the present invention has the heart yearn (8) of 2 head hinge joints, can determine whether detector heart yearn (8) is intact by the method for measuring its afterbody lead (1) electric continuity.
The detector that uses present embodiment to provide also can be used for the leak detection of liquid metal potassium, Na-K alloy, sn-bi alloy.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (1)
1. sodium-cooled fast reactor mainvessel single-point contact type sodium leak detector will be that cladding materials, aluminium oxide are that two heart yearns (8) in the twin-core sheathed cable (4) of insulation are from sheathed cable with the stainless steel
(4) head is peeled off out, through sand paper beat bright after hinge joint, and form solder joint with argon arc welding, the heart yearn after the hinge joint (8) puts metal sleeve (7), metal sleeve (7) is inserted in by sintering Al
2O
3In the insulating sleeve of making (5), be inserted in head sheath (6) again in insulating sleeve (5) outside, the shell of head sheath (6) and sheathed cable (4) fills silk after molten boxing with argon arc welding method in the two joint and repairs smoothly, and 4 of head sheath (6) front end side are entered sodium hole (10) and are arranged to 2 layers along short transverse; The detector afterbody has 3 and draws lead, wherein draws lead (9) and is connected with soldering with tail end sheath (3) outer wall for one, draws lead (1) and is connected with soldering with the heart yearn (8) of sheathed cable (4) respectively for other 2; Finish draw wire bonds after, tail end sheath (3) is inserted in sheathed cable (4) and forms girth joint, with the cavity of epoxy resin as encapsulant (2) filling tail end sheath (3) in tail end sheath (3) front end and sheathed cable (4) joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101112574A CN101071654B (en) | 2007-06-20 | 2007-06-20 | Single-point contact type sodium leakage detector for sodium-cooled fast reactor main container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101112574A CN101071654B (en) | 2007-06-20 | 2007-06-20 | Single-point contact type sodium leakage detector for sodium-cooled fast reactor main container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101071654A CN101071654A (en) | 2007-11-14 |
| CN101071654B true CN101071654B (en) | 2010-06-09 |
Family
ID=38898794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101112574A Active CN101071654B (en) | 2007-06-20 | 2007-06-20 | Single-point contact type sodium leakage detector for sodium-cooled fast reactor main container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101071654B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2953270B1 (en) * | 2009-11-30 | 2013-02-22 | Areva | TUBULAR CANALIZATION FOR TRANSPORTING SODIUM LIQUID |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172867Y (en) * | 1993-12-20 | 1994-07-27 | 冶金工业部建筑研究总院 | Leak detector for blast furnace cooling water |
| GB2330659A (en) * | 1997-10-22 | 1999-04-28 | Doryokuro Kakunenryo | Sodium leakage detection apparatus |
| CN1358989A (en) * | 2002-01-29 | 2002-07-17 | 清华大学 | Heat-measuring type sensor for judging foam medium state |
| CN2845046Y (en) * | 2005-11-10 | 2006-12-06 | 上海华虹Nec电子有限公司 | A kind of twin-core type leak of liquid warning system of looking into leakage point, broken string and breakpoint |
-
2007
- 2007-06-20 CN CN2007101112574A patent/CN101071654B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172867Y (en) * | 1993-12-20 | 1994-07-27 | 冶金工业部建筑研究总院 | Leak detector for blast furnace cooling water |
| GB2330659A (en) * | 1997-10-22 | 1999-04-28 | Doryokuro Kakunenryo | Sodium leakage detection apparatus |
| CN1358989A (en) * | 2002-01-29 | 2002-07-17 | 清华大学 | Heat-measuring type sensor for judging foam medium state |
| CN2845046Y (en) * | 2005-11-10 | 2006-12-06 | 上海华虹Nec电子有限公司 | A kind of twin-core type leak of liquid warning system of looking into leakage point, broken string and breakpoint |
Non-Patent Citations (4)
| Title |
|---|
| JP平3-37540A 1991.02.18 |
| JP昭59-65754A 1984.04.14 |
| JP昭59-77331A 1984.05.02 |
| JP特开平4-242193A 1992.08.28 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101071654A (en) | 2007-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5898595B2 (en) | Corrosion potential sensor | |
| CN203824685U (en) | Pressure measuring system with mineral matter insulating cable | |
| CN105741894A (en) | 1E-grade reactor pile core temperature measurement equipment for nuclear power plant | |
| CN102216746B (en) | Device for determining and/or monitoring a process variable | |
| CN106549239A (en) | For the multicore cable connector of measuring system in nuclear reactor heap | |
| CN101071654B (en) | Single-point contact type sodium leakage detector for sodium-cooled fast reactor main container | |
| CN111326269A (en) | Reactor core measuring sensor based on self-powered detector and thermocouple | |
| JP2013140101A (en) | Nuclear power plant temperature measurement system and nuclear power plant instrumentation system | |
| CN106785696B (en) | Triaxial cable connection assembly for an off-stack nuclear testing system of a nuclear reactor | |
| CN112331373A (en) | Fast response nuclear reactor core temperature measurement assembly | |
| CN204964066U (en) | Colliery spontaneous combustion fire district drilling temperature measuring device | |
| JP6591770B2 (en) | Reactor temperature measurement device, molten state detection device, and water level measurement device in an emergency | |
| CN203673850U (en) | Mineral insulation feedthrough line for nuclear power station electrical penetration piece | |
| CN206349524U (en) | Multicore cable connector for measuring system in nuclear reactor heap | |
| CN203631149U (en) | Built-in temperature-measuring optical cable of intelligent cable | |
| CN212303095U (en) | Underwater dynamic pressure sensor mounting device | |
| CN209910845U (en) | Cabinet type temperature sensor | |
| JP5574788B2 (en) | Conductive liquid leak detection line | |
| CN205582513U (en) | 1E level reactor reactor core temperature measurement equipment for nuclear power station | |
| JP3028941B2 (en) | Multi-sheath type sodium leak detection device | |
| CN218937593U (en) | High-strength high-sensitivity inner leakage-proof thermocouple thermometer | |
| CN107093469A (en) | Hydrogen gas lines anti-leak and leakage detection method in nuclear power station | |
| CN207528388U (en) | A kind of nuclear power plant containment shell seal tightness test device for pressure measurement | |
| CN106816746A (en) | Neutron temperature Measurement channel plug protecting device | |
| CN108831591A (en) | A kind of novel carbon fiber compound core conducting wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |