CN203366772U - Sodium-cooled fast reactor structure material irradiation tank - Google Patents
Sodium-cooled fast reactor structure material irradiation tank Download PDFInfo
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- CN203366772U CN203366772U CN 201320323310 CN201320323310U CN203366772U CN 203366772 U CN203366772 U CN 203366772U CN 201320323310 CN201320323310 CN 201320323310 CN 201320323310 U CN201320323310 U CN 201320323310U CN 203366772 U CN203366772 U CN 203366772U
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- sodium
- inner barrel
- joint
- cooled fast
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Abstract
The utility model relates to a measuring device used for measuring irradiation performance of materials by using nuclear radiation in a reactor. In order to solve the problem that no convenient and suitable sodium-cooled fast reactor structure material irradiation tank exists in the prior art, the utility model provides a sodium-cooled fast reactor structure material irradiation tank which comprises an outer cylinder body, an inner cylinder body and a central pipe, wherein the central pipe is located in the center inside the inner cylinder body, a sample pipe placement area is arranged between the central pipe and the inner cylinder body, an open end of the inner cylinder body is provided with a connector, the outer cylinder body is located outside the overall structure, the top end of the outer cylinder body is provided with an outer end cover, the inside of the inner cylinder body is filled with liquid sodium, helium is filled between the inner cylinder body and the outer cylinder body, and the connection method is welding. The sodium-cooled fast reactor structure material irradiation tank provides a solution for the problem that no convenient and suitable sodium-cooled fast reactor structure material irradiation tank exists in the prior art, the minimum number of samples required by a standard test can be achieved with a single test, and the sodium-cooled fast reactor structure material irradiation tank is reasonable in structure design and convenient to use and has a function of non-online test parameter monitoring.
Description
Technical field
The utility model relates to a kind of measurement mechanism that utilizes nuclear radiation measurement material irradiation performance in reactor, particularly a kind of sodium-cooled fast reactor structured material irradiation capsule.
Background technology
The material irradiation performance is one of most important usability of nuclear power station material, and the new material that is applied to any radiation place in nuclear power station all needs to carry out Irradiation Test, to grasp its irradiation behaviour.
The fast neutron field that in the STUDY OF LEVEL LIFETIME heap, nuclear fission produces provides the irradiation place for having accelerated the nuclear material Irradiation Test.Carry out material irradiation test, need the radiation parameter of binding heap, and, according to the specific requirements such as sample size, irradiation temperature and damage dose of irradiation material, develop unique irradiation devices.All set up unique irradiation technique on the test reactor of various countries, and based on this, carried out the irradiation test research of a large amount of pile materialses.For example the fast test reactor EBR-II in laboratory, U.S. Argonne through transformation, has become the powerful of American Studies material radiation effect after building up.Completed altogether 6378 irradiation tests on EBR-II heap in 1965 to 1975, irradiation sample comprises oxide fuel, other sodium-cooled fast reactor fuel, driving fuel, involucrum and structured material and controls material etc.
Irradiation technique has developed into special nuclear engineering technology, and its technical characterstic concentrated reflection is in the design of irradiation devices.The sorting technique of irradiation devices is a lot, the most important thing is to classify by heat transfer path.1) the direct or indirect cooling irradiation capsule that is called with a circuit cools agent: directly refer to the open type irradiation capsule, sample directly contacts with cooling medium; Indirectly refer to the enclosed irradiation capsule, between sample and cooling medium, heat transfer medium is arranged.2) be independent of but system and to provide minor loop for oneself cooling of cooling in heap, claim irradiation loop.The fast neutron experimental reactor, due to the singularity of structure and cooling medium, mainly relies on irradiation capsule to carry out irradiation test.
In theory, irradiation capsule is broadly divided into two kinds: with the irradiation capsule of surveying instrument with without the irradiation capsule of surveying instrument.The former can measure or control the parameters such as each position temperature, pressure, distortion in irradiation, and structure is more complicated; And the latter is without the on-line measurement function, structure is relatively simple.The design of irradiation capsule will be considered physics, thermal technology, structure, waterpower self-tightening and measure requirement.The heat conduction of irradiation capsule in heap, be the gap rely on changed between tank and irradiation channel, and the heat transfer area of change tank skin carries out.The solution of irradiation capsule axial temperature nonunf ormity can be designed to stepped appearance by irradiation capsule, and the each several part of modifier and the gap between duct, with the leveling Temperature Distribution.
The of paramount importance monitoring parameter of irradiation test is temperature and neutron fluence.Online temperature survey adopts thermopair usually, selects thermocouple material to depend on serviceability temperature, and the connection of thermopair focus and point for measuring temperature, must be firm, usually adopts spot welding or be fixed.In the irradiation capsule with measurement instrument not, temperature, supervision of neutron flux adopt non-online method, temperature detection method commonly used is to utilize the temperature effect of material, measured the anti-irradiation temperature that pushes away after irradiation test, for example adopt eutectic alloy, according to the state after its irradiation and micromechanism judgement irradiation temperature; The foil detector actual measurement commonly used of integration fluence, accurate than computing method.The measurement of fast neutron integration fluence adopts nickel, iron, tungsten etc. to cook foil detector, and also useful silicon dioxide is surveyed the report of fast neutron integration fluence.
Singularity due to the sodium-cooled fast reactor structure, what at first consider should be the irradiation capsule of non-on-line measurement, yet due to the sodium-cooled fast reactor technology still the development among, open source literature that can be for reference is very limited, so far do not find comparatively to be suitable for this type of irradiation capsule of application, therefore based on actual needs, should develop the applicable sodium-cooled fast reactor structured material irradiation capsule of a kind of convenience.
Summary of the invention
For solving the problem that does not facilitate applicable sodium-cooled fast reactor structured material irradiation capsule in prior art, the utility model provides a kind of sodium-cooled fast reactor structured material irradiation capsule, specific as follows:
This sodium-cooled fast reactor structured material irradiation capsule comprises outer cylinder body, inner barrel and pipe core; Described inner barrel inner bottom is provided with lower cover slip, and inner barrel inside opening end is provided with upper cover plate, and lower cover slip and upper cover plate are porous plate; Pipe core is positioned at the inner barrel central interior, and its two ends are individually fixed in lower cover slip and upper cover plate center, and the pipe core two ends are respectively equipped with upper end plug and lower end plug, the perforate of pipe core tube wall; Be provided with the sample hose put area between pipe core and inner barrel; The inner barrel openend is provided with joint, and joint is hollow structure, and the joint bottom is enclosed within inner barrel inside, joint bottom inner edge chamfering, and the joint open top, the around openings inwall adopts inclined design; The joint open top end is provided with sealing-plug and nut, and nut pushes down by compressing pipe the sealing that sealing-plug is realized joint and inner barrel, and the nut outside is provided with inner end cap; Outer cylinder body is positioned at the one-piece construction outside that inner barrel, joint and inner end cap form, and its top is provided with outer end cap; Described inner barrel inside is filled with liquid sodium, and the hollow space of joint is filled with argon gas, between inner barrel and outer cylinder body, is filled with helium, is provided with the eutectic alloy for temperature monitoring in pipe core, and the outer cylinder body outside is provided with the equally distributed foil detector of measuring for neutron fluence; Wherein, between inner barrel and joint, between joint and inner end cap and the connected mode between outer cylinder body and outer end cap be welding, the material of described outer cylinder body and inner barrel is stainless steel.
Described upper end plug is connected to preferably by flattening nut and upper cover plate.
Described sodium-cooled fast reactor structured material irradiation capsule can arrange more than two at axial location in use, and environment for use is the reactor core active region.
Function and the characteristics of sodium-cooled fast reactor structured material irradiation capsule of the present utility model are as follows:
1. with the sodium cooled fast reactor core condition, be complementary: sodium-cooled fast reactor structured material irradiation capsule of the present utility model is convenient to put into the container that profile is identical with sodium cooled fast reactor core assembly and is used, structure now and existing operating system are complementary, and are convenient to into heap, the operation that goes out heap.
2. single test can meet the minimum sample number of code test requirement: maximum using inner space, by structural design and optimization sample arrangement scheme, the material sample that each sodium-cooled fast reactor structured material irradiation capsule inside is put into can be contained polytype samples such as stretching sample, biaxial creep sample and micro-analysis sample, and can meet minimum sample number requirement.
3. reasonable in design, easy to use: inner barrel inside is filled with liquid sodium so that uniformity of temperature profile, and the gas expansion space is left on top, between outer cylinder body and inner barrel, fills helium.According to the sodium-cooled fast reactor operate power, by adjusting number of test specimens, and the width of air gap between outer cylinder body and inner barrel, obtain required irradiation temperature.Inner barrel top is provided with sealing-plug, is convenient to topping up sodium and sealing.
4. the non-on-line monitoring function that there is test parameters: be provided with the foil detector measured for neutron fluence and, for the eutectic alloy of temperature monitoring, can obtain test parameters by post-irradiation examination.
5. in case of necessity, sodium-cooled fast reactor structured material irradiation capsule can arrange more than two to increase sample size at axial location, and can be designed to different irradiation temperatures.
Sodium-cooled fast reactor structured material irradiation capsule of the present utility model has solved the problem that does not facilitate applicable sodium-cooled fast reactor structured material irradiation capsule in the prior art, good with the sodium cooled fast reactor core Condition Matching; Single test can meet the minimum sample number of code test requirement, maximum using inner space; Reasonable in design, easy to use; Non-on-line monitoring function with test parameters; Can arrange at axial location a plurality ofly to increase sample size during use, and can be designed to different irradiation temperatures.
The accompanying drawing explanation
Fig. 1 sodium-cooled fast reactor structured material of the present utility model irradiation capsule structural representation
Reference numeral: 1. outer end cap; 2. outer cylinder body; 3. inner end cap; 4. joint; 5. inner barrel; 6. nut; 7. compress pipe; 8. sealing-plug; 9. flattening nut; 10. upper cover plate; 11. upper end plug; 12. take over; 13. pipe core; 14. tabular micro-analysis sample; 15. biaxial creep sample; 16. stretching sample; 17. pillar; 18. lower cover slip; 19. lower end plug.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Embodiment
This sodium-cooled fast reactor structured material irradiation capsule comprises outer cylinder body 2, inner barrel 5 and pipe core 13; Described inner barrel 5 inner bottom are provided with lower cover slip 18, and inner barrel 5 inside opening ends are provided with upper cover plate 10, and lower cover slip 18 and upper cover plate 10 are porous plate; Pipe core 13 is positioned at inner barrel 5 central interior, and its two ends are individually fixed in lower cover slip 18 and upper cover plate 10 centers, and pipe core 13 two ends are respectively equipped with upper end plug 11 and lower end plug 19, pipe core 13 tube wall perforates; Be provided with the sample hose put area between pipe core 13 and inner barrel 5; Inner barrel 5 openends are provided with joint 4, and joint 4 is hollow structure, and joint 4 bottoms are enclosed within inner barrel 5 inside, joint 4 bottom inner edge chamferings, and joint 4 open tops, the around openings inwall adopts inclined design; Joint 4 open top end are provided with sealing-plug 8 and nut 6, and nut 6 is managed 7 by compression and pushed down the sealing that sealing-plug 8 is realized joint 4 and inner barrel 5, and nut 6 outsides are provided with inner end cap 3; Outer cylinder body 2 is positioned at the one-piece construction outside that inner barrel 5, joint 4 and inner end cap 3 form, and its top is provided with outer end cap 1; Described inner barrel 5 inside are filled with liquid sodium, the hollow space of joint 4 is filled with argon gas, be filled with helium between inner barrel 5 and outer cylinder body 2, be provided with the eutectic alloy for temperature monitoring in pipe core 13, outer cylinder body 2 outsides are provided with the equally distributed foil detector of measuring for neutron fluence; Wherein, between inner barrel 5 and joint 4, between joint 4 and inner end cap 3 and the connected mode between outer cylinder body 2 and outer end cap 1 be welding, the material of described outer cylinder body 2 and inner barrel 5 is stainless steel.Described upper end plug 11 is connected with upper cover plate 10 by flattening nut 9, when described sodium-cooled fast reactor structured material irradiation capsule is used, at axial location, arranges more than two.
Wherein, tabular micro-analysis sample 14 centering pipe 13 inside; Biaxial creep sample 15 circumferences of cannon bone are placed around pipe core 13, and its upper end can be connected with upper cover plate 10 by taking over 12; It is peripheral that stretching sample 16 pipes are placed in biaxial creep sample 15 pipes, and its underpart is fixed on lower cover slip 18 by the pillar 17 overlapped in the inner.Irradiation temperature is about 450 ℃～600 ℃.
Claims (3)
1. a sodium-cooled fast reactor structured material irradiation capsule, it is characterized in that: this sodium-cooled fast reactor structured material irradiation capsule comprises outer cylinder body, inner barrel and pipe core; Described inner barrel inner bottom is provided with lower cover slip, and inner barrel inside opening end is provided with upper cover plate, and lower cover slip and upper cover plate are porous plate; Pipe core is positioned at the inner barrel central interior, and its two ends are individually fixed in lower cover slip and upper cover plate center, and the pipe core two ends are respectively equipped with upper end plug and lower end plug, the perforate of pipe core tube wall; Be provided with the sample hose put area between pipe core and inner barrel; The inner barrel openend is provided with joint, and joint is hollow structure, and the joint bottom is enclosed within inner barrel inside, joint bottom inner edge chamfering, and the joint open top, the around openings inwall adopts inclined design; The joint open top end is provided with sealing-plug and nut, and nut pushes down by compressing pipe the sealing that sealing-plug is realized joint and inner barrel, and the nut outside is provided with inner end cap; Outer cylinder body is positioned at the one-piece construction outside that inner barrel, joint and inner end cap form, and its top is provided with outer end cap; Described inner barrel inside is filled with liquid sodium, and the hollow space of joint is filled with argon gas, between inner barrel and outer cylinder body, is filled with helium, is provided with the eutectic alloy for temperature monitoring in pipe core, and the outer cylinder body outside is provided with the equally distributed foil detector of measuring for neutron fluence; Wherein, between inner barrel and joint, between joint and inner end cap and the connected mode between outer cylinder body and outer end cap be welding, the material of described outer cylinder body and inner barrel is stainless steel.
2. sodium-cooled fast reactor structured material irradiation capsule as claimed in claim 1 is characterized in that: described upper end plug is connected with upper cover plate by flattening nut.
3. sodium-cooled fast reactor structured material irradiation capsule as claimed in claim 1, it is characterized in that: described sodium-cooled fast reactor structured material irradiation capsule can be arranged more than two at axial location in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320323310 CN203366772U (en) | 2013-06-06 | 2013-06-06 | Sodium-cooled fast reactor structure material irradiation tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320323310 CN203366772U (en) | 2013-06-06 | 2013-06-06 | Sodium-cooled fast reactor structure material irradiation tank |
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| CN203366772U true CN203366772U (en) | 2013-12-25 |
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| CN 201320323310 Expired - Lifetime CN203366772U (en) | 2013-06-06 | 2013-06-06 | Sodium-cooled fast reactor structure material irradiation tank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868553A (en) * | 2014-03-28 | 2014-06-18 | 苏州热工研究院有限公司 | Combined type irradiation-temperature-humidity recorder |
| CN103971773A (en) * | 2014-05-26 | 2014-08-06 | 中国原子能科学研究院 | Metallic material irradiation device used in reactor |
| CN104240787A (en) * | 2013-06-06 | 2014-12-24 | 中国原子能科学研究院 | Sodium-cooled-fast-reactor-structure-based material irradiation capsule |
-
2013
- 2013-06-06 CN CN 201320323310 patent/CN203366772U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240787A (en) * | 2013-06-06 | 2014-12-24 | 中国原子能科学研究院 | Sodium-cooled-fast-reactor-structure-based material irradiation capsule |
| CN103868553A (en) * | 2014-03-28 | 2014-06-18 | 苏州热工研究院有限公司 | Combined type irradiation-temperature-humidity recorder |
| CN103868553B (en) * | 2014-03-28 | 2017-10-20 | 苏州热工研究院有限公司 | A kind of combined type irradiation and humiture recorder |
| CN103971773A (en) * | 2014-05-26 | 2014-08-06 | 中国原子能科学研究院 | Metallic material irradiation device used in reactor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |