CN101335056A - Reactor core supporting structure of pool type sodium-cooled fast reactor - Google Patents
Reactor core supporting structure of pool type sodium-cooled fast reactor Download PDFInfo
- Publication number
- CN101335056A CN101335056A CNA2008101352356A CN200810135235A CN101335056A CN 101335056 A CN101335056 A CN 101335056A CN A2008101352356 A CNA2008101352356 A CN A2008101352356A CN 200810135235 A CN200810135235 A CN 200810135235A CN 101335056 A CN101335056 A CN 101335056A
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- China
- Prior art keywords
- grid plate
- plate header
- support structure
- pool type
- core support
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- 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 claims description 21
- 229910052708 sodium Inorganic materials 0.000 claims description 20
- 239000011734 sodium Substances 0.000 claims description 20
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 16
- 238000005254 chromizing Methods 0.000 claims description 4
- 238000005121 nitriding Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000008358 core component Substances 0.000 abstract 2
- 239000002826 coolant Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 108010052164 Sodium Channels Proteins 0.000 description 2
- 102000018674 Sodium Channels Human genes 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 102000005393 Sodium-Potassium-Exchanging ATPase Human genes 0.000 description 1
- 108010006431 Sodium-Potassium-Exchanging ATPase Proteins 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a reactor core supporting structure of a pool type sodium-cooled fast reactor. The split type reactor core component flow distribution device comprises a large grid plate header, a small grid plate header and a reactor core enclosure barrel, so that the number of holes formed in the large grid plate header is greatly reduced, the structural difficulty of the large grid plate header is reduced, the integral rigidity of the large grid plate header is improved, and the split type small grid plate header can easily realize the distribution of flow required by different reactor core components.
Description
Technical field
The invention belongs to the reactor core structure technical field, be specifically related to a kind of core support structure of pool type natrium cold fast reactor.
Background technology
In pool type natrium cold fast reactor, core support structure's parts that are absolutely necessary, it is the direct supporting and the positioning reference of reactor core assembly, also is the distributing center of core coolant flow amount, the core support structure of various heap types is not quite similar.For example in United States Patent (USP) " Diagrid for supporting a nuclear reactorcore; United States Patent 3937653; Feb.10; 1976 ", provide a kind of core support structure that is called as reactor diagrid, it is a box typed structure, constitute by last lower flange and cylinder, upper flange is a circular grill flat board, lower flange is a dome type structure, a lot of perforated pipe seats have been welded corresponding to each grid between the last lower flange, for reactor core assembly provides the installation site, the cooling medium of sending casing by main pump to is distributed to each assembly by these bases and is cooled off.The reactor core supporting base drops on the bottom of primary tank.United States Patent (USP) " Core Support System for a Fast Reactor; United States Patent 3992256; Nov.16; 1976 " provides the another kind of core support structure that is used for sodium-cooled fast reactor, it also is a box typed structure, by up and down two flat flanges and cylinder are formed, the grid that reactor core assembly is installed is arranged on the upper flange, it under the grid pipe in a lot of band stream sodium hole, then from the pipeline of main pump, sodium is sent into casing thus and is distributed to assembly by pipe on the cylinder of supporting structure.The box-type that this equipment is installed in the heap supports.
The difficulty of above core support structure processing and manufacturing is bigger, and grid quantity is too many; There is not the radial constraint effect of consideration for reactor core assembly; Similar structures not too is beneficial to compact integrated pond formula and arranges, is applicable to the heap type that in-pile component quantity is few.
Summary of the invention
(1) goal of the invention
According to the existing in prior technology defective, it is simpler that the present invention aims to provide a kind of structure, is beneficial to the core support structure that compact integrated pond formula is arranged.
(2) technical scheme
For achieving the above object, the invention provides following technical scheme.
A kind of core support structure of pool type natrium cold fast reactor encloses bucket by big grid plate header, little grid plate header and reactor core and forms.
Big grid plate header is the box-shaped welded structure of a pressure-bearing, and it is made up of last lower flange, the cylinder that is welded in periphery and the pipe with holes that is welded between two flanges, and the number of pipe is decided as required.Perforate is to install little grid plate header on its upper flange, and the number in hole is decided as required.The cylinder sides perforate is with linking to each other for sodium channel from main pump.Have below cylinder sides and the lower flange to piling internal ionization chamber passage and primary tank cooling system choker-line for sodium.Big grid plate header is the supporting that little grid plate header and reactor core enclose bucket and reactor core, also is simultaneously confluxing and distributing center of heap inner high voltage cooling medium.
Little grid plate header is installed on the big grid plate header upper flange, is the direct supporting and the positioning reference of reactor core assembly, also is the distributing center of core flow.Their value volume and range of product are numerous, the little grid plate header of plum blossom shape that 7 assemblies can be installed is arranged, the little grid plate header of the tubular that 1 assembly can be installed is also arranged, dissimilar little grid plate headers can prevent reactor core assembly wrong plug position, and dissimilar little grid plate headers is to the flow difference of assembly for sodium.The bottom of the little grid plate header of part conduit with holes is communicated with the sleeve pipe in the big grid plate header.
It is a round barrel shape structure that reactor core encloses bucket, the bottom is installed on the big grid plate header by flange bolt, be lined with polylith in the bucket and locate the radial location constraint that coaming plate can be used as reactor core outermost layer assembly top, hypomere is opened a plurality of holes as the inlet of sodium liquid natural convection in the heap, it be inter-module low pressure sodium liquid Natural Circulation flow induce the border.
(3) invention effect
Technical scheme provided by the present invention is owing to adopted little grid plate header to strengthen the unitized construction of grid plate header, big grid plate header perforate quantity is significantly reduced, greatly reduced the structure difficulty of big grid plate header, and improved its integral rigidity, the distribution of the required flow of the different reactor core assemblies of the easier realization of little grid plate header of split.Simultaneously, the core support structure that the technical program provided has reached supporting and location reactor core assembly better; Reasonable distribution is by reactor core assembly and other sodium flow with the sodium parts; The purpose of reliable constraint reactor core assembly.
Description of drawings
The structural representation of the core support structure of a kind of pool type natrium cold fast reactor of Fig. 1;
The vertical view of Fig. 2 Fig. 1.
Wherein, 1. lower flange; 2. side choker-line; 3. circle bench; 4. upper flange; 5. vertical core; 6. refueling machine platform; 7. hoister rail brackets; 8. middle subchannel; 9. coaming plate; 10. enclose bucket; 11. little grid plate header; 12. advance the sodium mouth; 13. sleeve pipe; 14. big grid plate header; 15. for the sodium pipe; 16. heap inner supporting structure; 17. following choker-line.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further elaborated.
The core support structure of certain pool type natrium cold fast reactor as shown in Figure 1, this equipment encloses bucket by big grid plate header 14, little grid plate header 11, reactor core and 10 forms.The quantity of the physical dimension of core support structure and little grid plate header 11 can arrange to determine according to the reactor core of difference heap type.
Big grid plate header 14 external diameter Φ 2035, high 800mm, upper flange 4 perforates are also installed the installing sleeve of little grid plate header 11 additional, 202 of little grid plate headers can be installed, there are 37 to give the sleeve 13 of little grid plate header 11 by center section between the upper and lower flange 4,1 for sodium, offer vertical core 5 on the sleeve 13, sodium enters little grid plate header 11 by vertical core 5 by big grid plate header 14.Little grid plate header 11 and sleeve 13 quantity change according to the size of reactor core, and what present embodiment adapted to is 0.6m diameter reactor core (this structure can be used for big fast reactor to 3m diameter reactor core).Have for sodium channel 15 on the big grid plate header 14 side barrels and insert, can have 4,6,8 for sodium pipe 15 by size of piling and loop quantity, present embodiment is 4; Also has a side choker-line 2 of supplying with heap internal ionization chamber passage sodium liquid on the sidewall, lower flange 1 bottom has following choker-line 17 to give the primary tank cooling system for sodium, size and required assignment of traffic according to the reactor diameter are determined the quantity and the physical dimension of choker-line 17 down, and present embodiment is 7 following choker-lines 17.Big grid plate header is installed on the heap inner supporting structure 16 by lower flange 1, lower flange 1 has the hole of dress bolt, between upper flange 4 and the heap inner supporting structure 16 circle bench 3 is arranged, hot and cold sodium is separated leave, and compensation is because thermal expansion causes the displacement of two equipment rooms.
The pattern and the quantity of little grid plate header (11) are decided according to the needs of reactor core assembly.As shown in Figure 2, totally 202 18 types of the little grid plate headers 11 that present embodiment provided, wherein by big grid plate header 14 directly for sodium 37 of 11 class seven apertures in the human head plum blossom shapes are arranged, their bottoms sleeve with holes is communicated with the sleeve in the big grid plate header 13; For sodium 48 of 5 classes, 7 hole plum blossom shapes are arranged by above-mentioned little grid plate header 11 leakage currents; Also have two types by leakage current 117 for the single hole of sodium.The reactor core assembly that little grid plate header 11 relies on the difference of the type in their holes to insert is also different, to realize avoiding the function of assembly wrong plug position.For the frequent plug that prevents assembly to the wearing and tearing or long-term cooperation the in little grid plate header 11 holes self-brazing takes place, the internal surface of hole of each little grid plate header 11 all need carry out surface hardening to be handled, and what present embodiment adopted is that the chromising nitriding is handled.
It is that a diameter is 2000mm that reactor core encloses bucket 10, high 2625mm, be installed on the upper flange (4), and a side is made the barrel-like structure of smooth walled lower end band inner flange, 2 supports 7 of supporting and fixing loading and unloading material hoister guide rail lower end are housed on the planomural, open the neutron access opening 8 of a 500mm * 600mm in planomural central authorities, for the out-pile ionization chamber provides middle subchannel, enclose and be lined with 12 blocks of location coaming plates 9 in the bucket 10 as of the radial location constraint of reactor core outermost layer assembly on top, the raised line that directly contacts with the assembly head is arranged on the coaming plate 9, raised line carries out the chromising nitriding to be handled, what the staving hypomere had a Natural Circulation in the heap advances sodium mouth 12, its quantity and size are decided according to the flow of required Natural Circulation, and present embodiment is the hole of 14 Φ 50.Promote pusher side near loading and unloading material and also considered a platform 6 of using for refueling machine enclosing bucket 10 tops, when assembly being forwarded to loading and unloading and expect the hoister well-bucket, refueling machine is placed on this platform.
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 (10)
1. the core support structure of a pool type natrium cold fast reactor, comprise big grid plate header (14), big grid plate header (14) is made up of upper and lower flange (4,1), the cylinder of periphery and the sleeve pipe with holes (13) between two flanges, the cylinder sides perforate, with linking to each other from main pump for sodium pipe (15), and establish side choker-line (2), following choker-line (17), it is characterized in that: described big grid plate header (14) upper end is provided with little grid plate header (11) and encloses bucket (10).
2. the core support structure of pool type natrium cold fast reactor according to claim 1 is characterized in that: described lower flange (1) is installed on the heap inner supporting structure (16), and upper flange (4) has a circle bench (3) with piling between the inner supporting structure (16).
3. the core support structure of pool type natrium cold fast reactor according to claim 1, it is characterized in that: described little grid plate header (11) is installed on the upper flange (4), and its pattern and quantity are decided according to the needs of reactor core assembly.
4. according to the core support structure of claim 1 or 3 described pool type natrium cold fast reactors, it is characterized in that: the bottom of the little grid plate header of part (11) conduit with holes is communicated with the sleeve pipe (13) in the big grid plate header in the described little grid plate header (11).
5. the core support structure of pool type natrium cold fast reactor according to claim 1 is characterized in that: the internal surface of hole of described little grid plate header (11) carries out the chromising nitriding to be handled.
6. the core support structure of pool type natrium cold fast reactor according to claim 1 is characterized in that: described reactor core encloses bucket (10) and is one and is installed on the upper flange (4) that a side is made the barrel-like structure of smooth walled; Enclose to be lined with in the bucket (10) and locate coaming plate (9), coaming plate has the raised line that directly contacts with the assembly head on (9).
7. the core support structure of pool type natrium cold fast reactor according to claim 6 is characterized in that: described raised line carries out the chromising nitriding to be handled.
8. the core support structure of pool type natrium cold fast reactor according to claim 6 is characterized in that: described enclosing is equipped with the platform (6) that hoister rail brackets (7), refueling machine are used on bucket (10) planomural.
9. the core support structure of pool type natrium cold fast reactor according to claim 6 is characterized in that: the described planomural central authorities that enclose bucket (10) offer neutron access opening (8).
10. the core support structure of pool type natrium cold fast reactor according to claim 6 is characterized in that: the described hypomere that encloses bucket (10) has into sodium mouth (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101352356A CN101335056A (en) | 2008-08-06 | 2008-08-06 | Reactor core supporting structure of pool type sodium-cooled fast reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101352356A CN101335056A (en) | 2008-08-06 | 2008-08-06 | Reactor core supporting structure of pool type sodium-cooled fast reactor |
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| Publication Number | Publication Date |
|---|---|
| CN101335056A true CN101335056A (en) | 2008-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101352356A Pending CN101335056A (en) | 2008-08-06 | 2008-08-06 | Reactor core supporting structure of pool type sodium-cooled fast reactor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103377717A (en) * | 2012-04-27 | 2013-10-30 | 上海核工程研究设计院 | Reactor core support lower plate |
| CN103474106A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Ellipsoid-type flow distributor |
| CN104332192A (en) * | 2014-09-09 | 2015-02-04 | 张志雄 | Welding joint titanium alloy zirconia nuclear reactor cooling assembly |
| CN104409114A (en) * | 2014-12-12 | 2015-03-11 | 中国科学院合肥物质科学研究院 | Flow distribution device used for tank-type forced circulation reactor |
| CN106653105A (en) * | 2016-12-29 | 2017-05-10 | 中科瑞华原子能源技术有限公司 | Small-sized movable nuclear reactor double-container support system |
| CN109378090A (en) * | 2018-11-12 | 2019-02-22 | 中国原子能科学研究院 | A kind of deep water type low temperature heating reactor multisection type in-pile component |
| CN112509715A (en) * | 2020-11-16 | 2021-03-16 | 中国原子能科学研究院 | Seven subassembly flow measurement experiment sections |
| CN113948224A (en) * | 2021-10-22 | 2022-01-18 | 中国原子能科学研究院 | Reactor and shielding assembly thereof |
| CN113972017A (en) * | 2021-10-22 | 2022-01-25 | 中国原子能科学研究院 | Ionization chamber channel |
| CN115862902A (en) * | 2022-09-22 | 2023-03-28 | 中国原子能科学研究院 | Reactor with a reactor core |
-
2008
- 2008-08-06 CN CNA2008101352356A patent/CN101335056A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103377717B (en) * | 2012-04-27 | 2015-09-30 | 上海核工程研究设计院 | A kind of reactor core support lower plate |
| CN103377717A (en) * | 2012-04-27 | 2013-10-30 | 上海核工程研究设计院 | Reactor core support lower plate |
| CN103474106A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Ellipsoid-type flow distributor |
| CN104332192A (en) * | 2014-09-09 | 2015-02-04 | 张志雄 | Welding joint titanium alloy zirconia nuclear reactor cooling assembly |
| CN104409114A (en) * | 2014-12-12 | 2015-03-11 | 中国科学院合肥物质科学研究院 | Flow distribution device used for tank-type forced circulation reactor |
| CN106653105A (en) * | 2016-12-29 | 2017-05-10 | 中科瑞华原子能源技术有限公司 | Small-sized movable nuclear reactor double-container support system |
| CN106653105B (en) * | 2016-12-29 | 2017-10-13 | 中科瑞华原子能源技术有限公司 | A kind of removable nuclear reactor twin containers support system |
| CN109378090B (en) * | 2018-11-12 | 2023-09-29 | 中国原子能科学研究院 | Deep water type low temperature heat supply pile multi-section type internal pile component |
| CN109378090A (en) * | 2018-11-12 | 2019-02-22 | 中国原子能科学研究院 | A kind of deep water type low temperature heating reactor multisection type in-pile component |
| CN112509715A (en) * | 2020-11-16 | 2021-03-16 | 中国原子能科学研究院 | Seven subassembly flow measurement experiment sections |
| CN112509715B (en) * | 2020-11-16 | 2022-08-05 | 中国原子能科学研究院 | Seven subassembly flow measurement experiment sections |
| CN113972017A (en) * | 2021-10-22 | 2022-01-25 | 中国原子能科学研究院 | Ionization chamber channel |
| CN113948224A (en) * | 2021-10-22 | 2022-01-18 | 中国原子能科学研究院 | Reactor and shielding assembly thereof |
| CN113972017B (en) * | 2021-10-22 | 2024-05-10 | 中国原子能科学研究院 | Ionization chamber channel |
| CN115862902A (en) * | 2022-09-22 | 2023-03-28 | 中国原子能科学研究院 | Reactor with a reactor core |
| CN115862902B (en) * | 2022-09-22 | 2024-05-14 | 中国原子能科学研究院 | Reactor with a reactor body |
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Open date: 20081231 |