CN112466483A - A cladding casing for compactly arranging small-size heap shielding module - Google Patents
A cladding casing for compactly arranging small-size heap shielding module Download PDFInfo
- Publication number
- CN112466483A CN112466483A CN202011346748.9A CN202011346748A CN112466483A CN 112466483 A CN112466483 A CN 112466483A CN 202011346748 A CN202011346748 A CN 202011346748A CN 112466483 A CN112466483 A CN 112466483A
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- Prior art keywords
- cladding
- shell
- shielding
- shield
- stack
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- 238000005253 cladding Methods 0.000 title claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 27
- 238000000576 coating method Methods 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 7
- 238000003466 welding Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C11/00—Shielding structurally associated with the reactor
- G21C11/08—Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation
-
- 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
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a cladding shell for compactly arranging a small stack shielding module, which comprises: one end of the shell is provided with an opening; a shield of one or a combination of materials disposed inside the enclosure; a cover plate sealed over the open end of the can, wherein: the side wall of the cladding shell is provided with a positioning boss which protrudes outwards from the inside of the cladding shell and is used for releasing the thermal expansion of the shielding body when the thermal expansion difference value of the shielding body and the cladding shell at the design temperature is small so as to ensure the integrity of the cladding shell; when the shield and the cladding of the cladding shell are in a cold state, the shield is contacted with the positioning boss. The coating shell for compactly arranging the small stack shielding module can release the thermal expansion of the shielding body when the thermal expansion difference value of the shielding body and the cladding shell at the design temperature is small, so that the integrity and the reliability of the coating shell are ensured; the structure is simplified, and the shielding effect is improved.
Description
Technical Field
The invention relates to the field of nuclear power, in particular to a coating shell for compactly arranging small stack shielding modules.
Background
In order to meet the use requirements of the marine environment and the limitation of narrow arrangement space such as limited arrangement in a cabin, a primary loop nuclear island main device usually adopts a compact arrangement form, such as an integrated design, a short pipe connection and the like. The shielding scheme of the existing small reactor structure is not perfect, and the problems of large design and implementation difficulty of the shielding structure and the like exist.
In addition, the module is rectangular plate, need to adopt the screw to carry out mechanical locking, arrange in the shielding face, the shielding module adopts single face cladding, shielding material to density board etc. this structure can't satisfy this kind of curved surface of heap hole and arranges, can't satisfy the high temperature of nearly heap department, can't satisfy the leakproofness demand of shielding material cladding, can't satisfy the installation location demand in this kind of narrow and small space of heap hole, and the density board can't satisfy neutron shielding demand.
Meanwhile, the existing small reactor cannot be applied to the environment that the distance between main equipment such as a main pump steam generator is narrow, and the requirements for the reactor core and the out-of-reactor shielding are also higher, for example: the existing small reactor generally adopts an integrated or double-layer casing connection mode and the like, the size of a reactor pressure vessel is small, the inner wall of an RPV (resilient pressure vessel) is close to a reactor core, and neutrons reflected by the reactor core are easy to generate irradiation damage to the inner wall of the reactor pressure vessel; and the clearance between the main equipment is narrow, and the main equipment is nearer apart from the reactor core, and the installation that the current shield structure of using often has not been able to adapt to above-mentioned structure.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a coating shell for compactly arranging a small stack shielding module, which can release the thermal expansion of a shielding body when the thermal expansion difference between the shielding body and a cladding shell at the design temperature is small so as to ensure the integrity and the reliability of the coating shell; the structure is simplified, and the shielding effect is improved.
In order to solve the above technical problem, an embodiment of the present invention provides a sheathing case for compactly arranging a small stack shielding module, including: one end of the shell is provided with an opening; a shield of one or a combination of materials disposed inside the enclosure; a cover plate sealed over the open end of the can, wherein: the side wall of the cladding shell is provided with a positioning boss which protrudes outwards from the inside of the cladding shell and is used for releasing the thermal expansion of the shielding body when the thermal expansion difference value of the shielding body and the cladding shell at the design temperature is small so as to ensure the integrity of the cladding shell; when the shield and the cladding are in a cold state, the shield is in contact with the positioning boss.
The shielding body comprises a first shielding body, a second shielding body and a third shielding body which are blocky, and the first shielding body, the second shielding body and the third shielding body of the cladding shell are sequentially attached and are arranged in the cladding shell in parallel.
Wherein the shield is capable of plastic deformation at the location of the locating boss.
Wherein, the location boss can take place elastic deformation towards the outside of package casing.
Wherein, the positioning lug boss is within the allowable yield limit of the cladding and is formed by punching; the height of the locating boss is determined by the difference in thermal expansion between the shield and the can at the design temperature.
At least one side surface of the cladding is provided with a miter joint or an overlap joint which can be mitered or overlapped with other adjacent cladding shells.
The cladding is a stainless steel cladding, the stainless steel cladding is formed by welding a plurality of steel plates in a splicing mode, and welding seams of the plurality of steel plates are continuous and full-penetration welding seams.
The cladding is a stainless steel cladding, and the stainless steel cladding is made of a steel plate.
Wherein, the cover plate is provided with an opening for exhausting.
The coating shell for compactly arranging the small stack shielding module provided by the invention has the following beneficial effects: the sheathing case includes: one end of the shell is provided with an opening; a shield made of one or a combination of materials disposed inside the cladding shell; a cover plate sealed over the clad housing open end of the clad housing can, wherein: the side wall of the cladding shell is provided with a positioning boss which protrudes outwards from the interior of the cladding shell, so that when the thermal expansion difference value of the shielding body and the cladding shell at the design temperature is small, the thermal expansion of the shielding body is released, and the integrity of the cladding shell is ensured; when the shielding body of the coating shell and the cladding shell are in a cold state, the shielding body of the coating shell is contacted with the positioning boss of the coating shell, so that when the thermal expansion difference value of the shielding body and the cladding shell at the design temperature is small, the thermal expansion of the shielding body is released, and the integrity and the reliability of the coating shell are ensured; the structure is simplified, and the shielding effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a sheathing case for compactly arranging a small stack shield module according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a blasting structure of a cladding case for compactly arranging a small stack shielding module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a first embodiment of a containment case for a compact layout miniature stack shielding module according to the present invention is shown.
The structure of the covering housing M for compactly arranging a small stack shield in this embodiment includes: the device comprises a shell 1 with an opening at one end, and a shield 3 which is arranged in the shell 1 and is made of one material or a plurality of materials; the cover plate 2 is sealed on the opening end 11 of the cladding shell 1, and a positioning boss 4 is convexly arranged on the side wall of the cladding shell 1 from the inner part 1a to the outer part 1b of the cladding shell 1, so that when the thermal expansion difference value of the shielding body 3 and the cladding shell 1 at the design temperature is small, the thermal expansion of the shielding body 3 is released, and the integrity of the cladding shell M is ensured; when the shield 3 and the shell 1 covering the shell are in a cold state, the shield 3 is in contact with the positioning boss 4.
The enclosure 1 has a hollow structure with an opening 11 at one end, and is cubic in the present embodiment, but in other embodiments, the enclosure 1 may have a hollow structure with other shapes as needed, as long as the shield 3 can be installed inside. When the envelope 1 is provided in another shape, the entirety of the covering case M is a special-shaped piece.
Further, the cladding 1 is a stainless steel cladding which is formed by welding a plurality of steel plates in a splicing manner, and the welding seams of the plurality of steel plates are continuous and full penetration welding seams. In other embodiments, the cladding 1 may be a stainless steel cladding made from one sheet of steel sheet metal.
Further, at least one side surface of the cladding shell 1 is provided with a miter joint or an overlap joint which can be mitered or overlapped with other adjacent cladding shells M. Therefore, when the compact arrangement small stacks adopt the regional multilayer overlapping arrangement of the coating shells M, each coating shell M for the compact arrangement small stacks can realize the positioning and fixing of the upper and lower adjacent modules through the oblique joint or the lap joint, so that the adjacent modules can be matched.
It can be understood that: it is also possible to provide a scarf joint or a lap joint on each side of the cladding 1, so as to satisfy the overall structural arrangement.
The cover plate 2 is sealed on the open end 11 of the cladding 1, and is of a plate structure, and when the structure is implemented, an opening 21 is optionally arranged at the middle position of the cover plate 2 according to the material characteristics of the shielding body 3 in the cladding 1, and the opening is used for exhausting air.
It can be understood that: when the whole of the coating shell M is a special-shaped piece, after the shielding body 3 is put into the coating shell M, the cover plate 2 can be welded according to the shape of the coating shell 1, and the shielding material is completely coated in the coating shell 1. Therefore, the shielding body 3/shielding material is ensured not to overflow under various working conditions, and related pore channels in the reactor cabin are not blocked.
The shield 3 is mounted inside the envelope 1, either made of one material or a combination of materials. Through setting up shield 3, make cladding casing M have certain shielding function, like this, when compact arrangement small-size heap adopts regional multilayer stack to arrange, each cladding casing M can be through wherein shielding material that sets up, realizes holistic shielding function.
Preferably, the shielding body 3 includes a first shielding body 31, a second shielding body 32 and a third shielding body 33 in a block shape, and the first shielding body 31, the second shielding body 32 and the third shielding body 33 of the covering shell are sequentially attached and placed in the enclosure 1 in parallel. Through regularly arranging and arranging the shielding bodies, the overall shielding effect of the coating shell M can be enhanced, the shielding can be easily filled according to the shape of the cladding shell 1, and the assembly efficiency is improved.
Further, the side wall of the can 1 is provided with a positioning boss 4 protruding from the inner portion 1a to the outer portion 1b thereof. The positioning boss 4 is within the allowable yield limit of the cladding and is formed by punching; the height of the locating boss 4 is determined by the difference in thermal expansion of the shield 3 and the can 1 at the design temperature.
The positioning boss 4 functions as follows:
when the thermal expansion difference between the coating shell M and the cladding 1 is small at the design temperature, the thermal expansion of the shielding body 3 can be favorably released, the integrity of the whole coating shell M is ensured, and the normal realization of the shielding effect is ensured. Specifically, in a cold state, the positioning boss 4 is in contact with the shield 3, and the shield 3 is prevented from reciprocating in the cladding 1 under the swinging working condition under the ocean condition, so that the cladding 1 is fatigued under alternating load; at the design temperature, the shielding body 3 can be filled in the whole cladding 1 by thermal expansion, and a gap is zero; the shielding body 3 is arranged inside the cladding 1, so that plastic deformation is allowed to occur, in the thermal expansion process, small plastic deformation can occur at the positioning boss 4, the positioning boss 4 can elastically deform towards the outer side of the cladding 1, the large deformation of the cladding shell M is avoided by overlapping the positioning boss 4 and the cladding shell, and the installation integrity and reliability of the whole shielding device are further ensured.
When the coating shell for compactly arranging the small stack shielding module is implemented, the processing of the coating shell 1 can be designed and manufactured into a regular cuboid or a special-shaped piece according to the field requirement, and the coating shell can be formed by one steel plate metal plate or a plurality of steel plates through tailor welding. According to the arrangement form, one or more surfaces of the shell can be made into lap joints or miter joints with other adjacent cladding shells. During the manufacturing process of the cladding 1, the height and position of its positioning boss 4 are determined according to the thermal expansion difference. After the cladding 1 is finished, the shielding body 3 is filled in, so that the shielding body is ensured to be in contact with the positioning boss 4 in a cold state, and the displacement of the shielding body 3 is avoided. Finally, according to the shape of the cladding 1, the cover plate 2 is welded, and the shielding body 3 is completely covered in the cladding 1. And the shielding body 3 is ensured not to overflow under various working conditions, and related pore channels in the reactor cabin are not blocked.
The implementation of the coating shell for compactly arranging the small stack shielding module has the following beneficial effects: the sheathing case includes: one end of the shell is provided with an opening; a shield made of one or a combination of materials disposed inside the cladding shell; a cover plate sealed over the clad housing open end of the clad housing can, wherein: the side wall of the cladding shell is provided with a positioning boss which protrudes outwards from the interior of the cladding shell, so that when the thermal expansion difference value of the shielding body and the cladding shell at the design temperature is small, the thermal expansion of the shielding body is released, and the integrity of the cladding shell is ensured; when the shielding body of the coating shell and the cladding shell are in a cold state, the shielding body of the coating shell is contacted with the positioning boss of the coating shell, so that when the thermal expansion difference value of the shielding body and the cladding shell at the design temperature is small, the thermal expansion of the shielding body is released, and the integrity and the reliability of the coating shell are ensured; the structure is simplified, the shielding effect is improved, and the thermal expansion of the shielding body can be released when the thermal expansion difference value of the shielding body and the cladding shell at the design temperature is small, so that the integrity and the reliability of the cladding shell are ensured; the structure is simplified, and the shielding effect is improved.
Claims (9)
1. A containment case for a compact layout miniature stack shield module, comprising:
one end of the shell is provided with an opening;
a shield of one or a combination of materials disposed inside the enclosure;
a cover plate sealed over the open end of the enclosure, wherein:
the side wall of the cladding shell is provided with a positioning boss which protrudes outwards from the interior of the cladding shell and is used for releasing the thermal expansion of the shielding body when the thermal expansion difference between the shielding body and the cladding shell at the design temperature is small so as to ensure the integrity of the cladding shell;
when the shield and the cladding are in a cold state, the shield is in contact with the positioning boss.
2. The encasement for a compactly arranged, small stack, shielded module of claim 1, wherein the shield comprises a first, second and third block-shaped shield, the first, second and third shields being sequentially fitted and placed parallel to one another in the encasement.
3. The sheathing enclosure for a compact arrangement miniature stack shielding module according to claim 1 or 2, wherein said shield is plastically deformable at the location of said positioning boss.
4. The sheathing enclosure for a compact arrangement miniature stack shielding module according to claim 1 or 2, wherein said positioning boss is elastically deformable toward the outside of said enclosure.
5. The shielding housing for a compact arrangement miniature stack shielding module of claim 1 or 2, wherein said locating boss is stamped and formed within the yield limit permitted for said containment shell;
the height of the locating boss is determined by the difference in thermal expansion of the shield and the can at the design temperature.
6. The sheathing enclosure for a compact arrangement of small stack shielding modules according to claim 1 or 2, characterized in that at least one side of the sheathing enclosure is provided with a scarf or lap joint that can be scarf or lap jointed with other adjacent sheathing enclosures.
7. A containment case for a compact arrangement miniature stack shield module according to claim 1 or 2, wherein the containment shell is a stainless steel containment shell, the stainless steel containment shell being tailor welded from a plurality of steel sheets, the weld seam of the plurality of steel sheets being a continuous, full penetration weld seam.
8. A containment case for a compact arrangement miniature stack shielding module as set forth in claim 1 or 2, wherein said cladding is a stainless steel cladding made from a sheet of steel sheet metal.
9. The encasement for a compact layout mini-stack shielding module of claim 1, wherein said cover plate is provided with openings for venting air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346748.9A CN112466483B (en) | 2020-11-26 | 2020-11-26 | Cladding shell for compactly arranging small-sized stack shielding modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346748.9A CN112466483B (en) | 2020-11-26 | 2020-11-26 | Cladding shell for compactly arranging small-sized stack shielding modules |
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| Publication Number | Publication Date |
|---|---|
| CN112466483A true CN112466483A (en) | 2021-03-09 |
| CN112466483B CN112466483B (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011346748.9A Active CN112466483B (en) | 2020-11-26 | 2020-11-26 | Cladding shell for compactly arranging small-sized stack shielding modules |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1299768A (en) * | 1969-09-27 | 1972-12-13 | Siemens Ag | Nuclear reactor installations |
| FR2229014A1 (en) * | 1973-05-09 | 1974-12-06 | Commissariat Energie Atomique | Fixing insulating bricks to nuclear reactor shield walls - using T-bars connecting to holes in bricks |
| US3945165A (en) * | 1973-06-26 | 1976-03-23 | Commissariat A L'energie Atomique | Heat-insulating system for a fast reactor shield slab |
| US3963936A (en) * | 1955-03-14 | 1976-06-15 | The United States Of America As Represented By The United States Energy Research And Development Administration | Neutronic reactor thermal shield |
| US4225389A (en) * | 1977-02-15 | 1980-09-30 | Nuclear Power Company Limited | Nuclear reactor constructions |
| US4498011A (en) * | 1980-05-09 | 1985-02-05 | Deutsche Gesellschaft Fur Wiederaufarbeitung | Device for receiving, moving and radiation-shielding of vessels filled with expended reactor fuel elements |
| JPH0219791A (en) * | 1988-07-07 | 1990-01-23 | Toshiba Corp | Thermal shield plate |
| US20060219960A1 (en) * | 2003-01-31 | 2006-10-05 | Kabushiki Kaisha Kobe Seiko Sho | Concrete cask and method for manufacturing thereof |
| JP2010019793A (en) * | 2008-07-14 | 2010-01-28 | Toshiba Corp | Neutron shield, nuclear reactor, and neutron shielding method |
| JP2013124872A (en) * | 2011-12-13 | 2013-06-24 | Mitsubishi Heavy Ind Ltd | Rack support structure |
| CN103886924A (en) * | 2014-01-07 | 2014-06-25 | 中科华核电技术研究院有限公司 | Shielding top cover |
| CN108922643A (en) * | 2018-07-20 | 2018-11-30 | 中广核研究院有限公司 | A kind of small-sized heap reactor-loop overall structure of compact Layout |
| CN208208351U (en) * | 2018-04-16 | 2018-12-07 | 安徽应流久源核能新材料科技有限公司 | A kind of splicing structure of metallic insulation boron carbide shielding block |
| CN110767329A (en) * | 2019-11-05 | 2020-02-07 | 中国核动力研究设计院 | Pressurized water reactor cavity radiation beam leakage shielding device |
| JP2020106437A (en) * | 2018-12-28 | 2020-07-09 | 日立造船株式会社 | Metallic cask |
| JP2020126084A (en) * | 2016-09-07 | 2020-08-20 | 日立造船株式会社 | Cask manufacturing method |
-
2020
- 2020-11-26 CN CN202011346748.9A patent/CN112466483B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963936A (en) * | 1955-03-14 | 1976-06-15 | The United States Of America As Represented By The United States Energy Research And Development Administration | Neutronic reactor thermal shield |
| GB1299768A (en) * | 1969-09-27 | 1972-12-13 | Siemens Ag | Nuclear reactor installations |
| FR2229014A1 (en) * | 1973-05-09 | 1974-12-06 | Commissariat Energie Atomique | Fixing insulating bricks to nuclear reactor shield walls - using T-bars connecting to holes in bricks |
| US3945165A (en) * | 1973-06-26 | 1976-03-23 | Commissariat A L'energie Atomique | Heat-insulating system for a fast reactor shield slab |
| US4225389A (en) * | 1977-02-15 | 1980-09-30 | Nuclear Power Company Limited | Nuclear reactor constructions |
| US4498011A (en) * | 1980-05-09 | 1985-02-05 | Deutsche Gesellschaft Fur Wiederaufarbeitung | Device for receiving, moving and radiation-shielding of vessels filled with expended reactor fuel elements |
| JPH0219791A (en) * | 1988-07-07 | 1990-01-23 | Toshiba Corp | Thermal shield plate |
| US20060219960A1 (en) * | 2003-01-31 | 2006-10-05 | Kabushiki Kaisha Kobe Seiko Sho | Concrete cask and method for manufacturing thereof |
| JP2010019793A (en) * | 2008-07-14 | 2010-01-28 | Toshiba Corp | Neutron shield, nuclear reactor, and neutron shielding method |
| JP2013124872A (en) * | 2011-12-13 | 2013-06-24 | Mitsubishi Heavy Ind Ltd | Rack support structure |
| CN103886924A (en) * | 2014-01-07 | 2014-06-25 | 中科华核电技术研究院有限公司 | Shielding top cover |
| JP2020126084A (en) * | 2016-09-07 | 2020-08-20 | 日立造船株式会社 | Cask manufacturing method |
| CN208208351U (en) * | 2018-04-16 | 2018-12-07 | 安徽应流久源核能新材料科技有限公司 | A kind of splicing structure of metallic insulation boron carbide shielding block |
| CN108922643A (en) * | 2018-07-20 | 2018-11-30 | 中广核研究院有限公司 | A kind of small-sized heap reactor-loop overall structure of compact Layout |
| JP2020106437A (en) * | 2018-12-28 | 2020-07-09 | 日立造船株式会社 | Metallic cask |
| CN110767329A (en) * | 2019-11-05 | 2020-02-07 | 中国核动力研究设计院 | Pressurized water reactor cavity radiation beam leakage shielding device |
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| Publication number | Publication date |
|---|---|
| CN112466483B (en) | 2024-01-16 |
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