CN112489828A - Shielding and cladding device for compactly arranging small-sized piles with large expansion difference - Google Patents
Shielding and cladding device for compactly arranging small-sized piles with large expansion difference Download PDFInfo
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- CN112489828A CN112489828A CN202011352294.6A CN202011352294A CN112489828A CN 112489828 A CN112489828 A CN 112489828A CN 202011352294 A CN202011352294 A CN 202011352294A CN 112489828 A CN112489828 A CN 112489828A
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- Prior art keywords
- cladding
- shielding
- shield
- small
- expansion
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- 238000005253 cladding Methods 0.000 title claims abstract description 95
- 239000000463 material Substances 0.000 claims abstract description 17
- 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
- 230000004888 barrier function Effects 0.000 claims 2
- 238000013022 venting Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000003466 welding Methods 0.000 description 9
- 235000014676 Phragmites communis Nutrition 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000006073 displacement reaction 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
- G21C11/02—Biological shielding ; Neutron or gamma shielding
- G21C11/04—Biological shielding ; Neutron or gamma shielding on waterborne craft
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C11/00—Shielding structurally associated with the reactor
- G21C11/02—Biological shielding ; Neutron or gamma shielding
- G21C11/022—Biological shielding ; Neutron or gamma shielding inside the reactor vessel
- G21C11/024—Biological shielding ; Neutron or gamma shielding inside the reactor vessel structurally combined with the casing
-
- 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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- 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)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a shielding and cladding device for compactly arranging small-sized piles with large expansion difference, 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: an elastic piece is arranged between the periphery of the shielding body and the cladding. The shielding and cladding device for compactly arranging the small stack with large expansion difference can release the thermal expansion of the shielding body when the thermal expansion difference value of the shielding body and the cladding at the design temperature is larger so as to ensure the integrity and the reliability of the shielding and cladding device; 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 shielding and cladding device for compactly arranging small reactors with large expansion difference.
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 shielding and cladding device for compactly arranging small stacks with large expansion difference, which can release the thermal expansion of a shielding body when the thermal expansion difference between the shielding body and a cladding is large at the design temperature so as to ensure the integrity and the reliability of the shielding and cladding device; 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 shield sheathing apparatus for compactly arranging a small stack with a large expansion difference, 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: an elastic piece is arranged between the periphery of the shielding body and the cladding and used for releasing the thermal expansion of the shielding body when the thermal expansion difference between the shielding body and the cladding at the design temperature is large so as to ensure the integrity of the shielding cladding device.
Wherein, the elastic piece is a reed with a certain height, and the reed is welded on the periphery of the inner wall of the shell.
When the shielding body and the cladding are in a hot state, the shielding body thermally expands and extrudes the spring leaves towards the outside of the cladding, and the spring leaves elastically deform; at the same time, the shield undergoes a certain plastic deformation to release the thermal expansion of the shield.
Wherein the reed keeps a certain distance with the inner wall of the cladding when the shielding body and the cladding are in a cold state.
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 shielding cladding devices.
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 shielding and cladding device for compactly arranging the small reactor with large expansion difference provided by the invention has the following beneficial effects: the shielding and cladding device 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 elastic piece is arranged between the periphery of the shielding body and the cladding, so that the thermal expansion of the shielding body can be released when the thermal expansion difference between the shielding body and the cladding is larger at the design temperature, and the integrity and the reliability of the shielding cladding device can be 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 diagram of the overall structure of a shielding and cladding device for compactly arranging small stacks with large expansion difference according to an embodiment of the invention.
Fig. 2 is a schematic diagram of the blasting structure of the shielding and cladding device for compactly arranging small piles with large expansion difference according to the embodiment of the 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 the present invention is shown for a compact arrangement of a small stack large differential expansion shielding and containment apparatus.
The structure of the shielding and cladding device P for compactly arranging the small stack shielding bodies in the 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; an elastic piece 5 is arranged between the periphery of the shielding body 3 and the cladding 1 and used for releasing the thermal expansion of the shielding body 3 when the thermal expansion difference between the shielding body 3 and the cladding 1 at the design temperature is large so as to ensure the integrity of the shielding cladding device.
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 enclosure 1 is provided in another shape, the entirety of the shield cladding means P 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 enclosure 1 is provided with a miter joint or an overlap joint which can be mitered or overlapped with other adjacent shielding and cladding devices P. Therefore, when the small stacks are compactly arranged and the shielding and cladding devices P are arranged in a multi-layer overlapping mode in a regional mode, each shielding and cladding device P for the small stacks can achieve positioning and fixing of the adjacent modules of the upper layer and the lower layer through the inclined joint or the lap joint, and the modules of the adjacent layers 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 shielding and cladding device P is a special-shaped piece, after the shielding body 3 is put into the shielding body P, the cover plate 2 can be welded according to the shape of the cladding 1, and the shielding body 3 is completely cladded in the cladding 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 the shielding body 3, make shielding cladding device P have certain shielding function, like this, when compact arrangement small-size heap adopts regional multilayer stack to arrange, each shielding cladding device P can be through wherein the 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. By regularly arranging and arranging the shielding bodies, the overall shielding effect of the shielding and cladding device P can be enhanced, shielding can be easily filled according to the shape of the cladding 1, and the assembly efficiency is improved.
Furthermore, an elastic member 5 is arranged between the periphery of the shield and the enclosure, in this embodiment, the elastic member is a spring with a certain height, and four spring pieces are respectively welded on the periphery of the shield 3 which is integrally in a cubic shape.
It will be appreciated that in this embodiment the leaves are welded around the inner wall of the housing. Of course, the spring plate can also be mechanically connected to the shield body, for example by screwing.
Preferably, the leaf spring has a height which affects the magnitude of its elastic deformation and is determined by the difference in thermal expansion of the shield 3 and the can 1 at the design temperature.
The function of the elastic member 5 is as follows:
when the cladding 1 and the shielding body 3 of the shielding cladding device P are at a design temperature, such as a large thermal expansion difference value, the elastic part 5 is used for releasing the thermal expansion of the shielding body 3, and meanwhile, the integrity of the shielding cladding device P is ensured, and the normal realization of the shielding effect is ensured.
In a cold state, the elastic piece 5 is in contact with the shielding body 3, and the shielding body 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 the alternating load; at the design temperature, the shield 3 can fill the entire envelope 1 as it thermally expands, achieving zero clearance. The shielding body 3 is coated in the cladding 1, so that in the thermal expansion process, small plastic deformation can occur at the reed, the reed simultaneously generates certain elastic deformation, the thickness of the accommodating object in the cladding 1 is increased equivalently due to the fact that the reed is welded on the periphery of the shell 1, the rigidity of the shielding cladding device P is enhanced equivalently, the structure of the cladding 1 is guaranteed not to be greatly deformed, and the installation integrity and the reliability of the whole shielding cladding device P are further guaranteed.
When the shielding and cladding device for compactly arranging the small stack with large expansion difference is specifically implemented, the processing of the cladding 1 can be designed and manufactured into regular cuboid or special-shaped pieces according to the field requirements, and the shielding and cladding device can be formed by one steel plate metal plate or a plurality of steel plates through tailor welding. Depending on the arrangement, one or more of its faces may be made with other adjacent modules as lap joints or miter joints. The height of the elastic member 5 and the welding position are determined according to the difference in thermal expansion. After the cladding 1 is completed, the shielding material/shield 3 is filled in to ensure contact with the elastic member 5 in a cold state, thereby preventing displacement of the shielding material/shield 3. And finally, welding the cover plate 2 according to the shape of the cladding 1, and completely cladding the shielding body 3 in the cladding. And the shielding material/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 shielding and cladding device for compactly arranging the small stack large expansion difference has the following beneficial effects: the shielding and cladding device 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 elastic piece is arranged between the periphery of the shielding body and the cladding, so that the thermal expansion of the shielding body can be released when the thermal expansion difference between the shielding body and the cladding is larger at the design temperature, and the integrity and the reliability of the shielding cladding device can be ensured; the structure is simplified, and the shielding effect is improved.
Claims (8)
1. A shield cladding apparatus for compact arrangement of small stack large differential expansion 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:
an elastic piece is arranged between the periphery of the shielding body and the cladding and used for releasing the thermal expansion of the shielding body when the thermal expansion difference between the shielding body and the cladding at the design temperature is large so as to ensure the integrity of the shielding cladding device.
2. The shielding and cladding apparatus for compact arrangement with small stack and large differential expansion of claim 1, wherein said resilient member is a leaf spring having a height, said leaf spring being welded around the inside wall of said housing.
3. The shielding encasement assembly for compact deployment with small stack-to-stack differential expansion of claim 2, wherein when said shield and said containment shell are in a hot state, said shield expands thermally, pressing said spring against the exterior of said containment shell, said spring elastically deforming; at the same time, the shield undergoes a certain plastic deformation to release the thermal expansion of the shield.
4. The shielding encasement assembly for compact deployment small stack large expansion differentials of claim 2, wherein said spring leaves are maintained at a distance from the inner wall of the enclosure when the shield and enclosure are in a cold state.
5. The shielding and cladding device for compact arrangement of small stacks with large expansion differences according to any of claims 1-4, wherein at least one side of the cladding is provided with a miter or overlap joint enabling miter or overlap joint with other adjacent shielding and cladding devices.
6. The barrier cladding apparatus for compact deployment small stack large expansion differential of any of claims 1 to 4, wherein the cladding is a stainless steel cladding, the stainless steel cladding is tailor welded from a plurality of steel sheets, the weld of the plurality of steel sheets being a continuous, full penetration weld.
7. The barrier cladding apparatus for compact arrangement small stacks with large expansion differences according to any of claims 1 to 4, wherein the cladding is a stainless steel cladding made from one sheet of steel sheet metal.
8. The shielding and cladding device for compact arrangement of small stacks with large differential expansion as claimed in any one of claims 1 to 4, wherein said cover plate is provided with openings for venting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011352294.6A CN112489828B (en) | 2020-11-26 | 2020-11-26 | Shielding and cladding device for compactly arranging small-sized stacks with large expansion difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011352294.6A CN112489828B (en) | 2020-11-26 | 2020-11-26 | Shielding and cladding device for compactly arranging small-sized stacks with large expansion difference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112489828A true CN112489828A (en) | 2021-03-12 |
| CN112489828B CN112489828B (en) | 2024-03-01 |
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| CN202011352294.6A Active CN112489828B (en) | 2020-11-26 | 2020-11-26 | Shielding and cladding device for compactly arranging small-sized stacks with large expansion difference |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2337407A1 (en) * | 1975-12-31 | 1977-07-29 | Commissariat Energie Atomique | Fuel rod assembly for nuclear reactor - prevents damage by own weight and permits use of aluminium alloy sheaths |
| JPH09113662A (en) * | 1995-10-23 | 1997-05-02 | Hitachi Ltd | Fuel rod for nuclear fuel assembly |
| JPH09242564A (en) * | 1996-02-29 | 1997-09-16 | Senshin Zairyo Riyou Gas Jienereeta Kenkyusho:Kk | Structure for tightening composite material liner |
| JPH112693A (en) * | 1997-06-12 | 1999-01-06 | Mitsubishi Heavy Ind Ltd | Vessel for nuclear reactor fuel transportation |
| CN1298543A (en) * | 1998-04-21 | 2001-06-06 | 英国核燃料公共有限公司 | A protective casing |
| CN101793062A (en) * | 2010-02-11 | 2010-08-04 | 中国电力科学研究院 | Ground insulation device suitable for shields |
| JP2013124872A (en) * | 2011-12-13 | 2013-06-24 | Mitsubishi Heavy Ind Ltd | Rack support structure |
| DE102014213583A1 (en) * | 2014-07-11 | 2016-01-14 | Bayerische Motoren Werke Aktiengesellschaft | Device for protecting a high pressure gas container of a motor vehicle, high pressure gas container for a motor vehicle and method for producing a high pressure gas container |
| US20160010787A1 (en) * | 2014-07-08 | 2016-01-14 | Solar Turbines Incorporated | Expansion joint for connecting an exhaust collector of an engine to a duct system |
| CN206505725U (en) * | 2017-01-20 | 2017-09-19 | 中广核研究院有限公司 | Compact pressurized water reactor |
| 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 |
| JP2020126084A (en) * | 2016-09-07 | 2020-08-20 | 日立造船株式会社 | Cask manufacturing method |
-
2020
- 2020-11-26 CN CN202011352294.6A patent/CN112489828B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2337407A1 (en) * | 1975-12-31 | 1977-07-29 | Commissariat Energie Atomique | Fuel rod assembly for nuclear reactor - prevents damage by own weight and permits use of aluminium alloy sheaths |
| JPH09113662A (en) * | 1995-10-23 | 1997-05-02 | Hitachi Ltd | Fuel rod for nuclear fuel assembly |
| JPH09242564A (en) * | 1996-02-29 | 1997-09-16 | Senshin Zairyo Riyou Gas Jienereeta Kenkyusho:Kk | Structure for tightening composite material liner |
| JPH112693A (en) * | 1997-06-12 | 1999-01-06 | Mitsubishi Heavy Ind Ltd | Vessel for nuclear reactor fuel transportation |
| CN1298543A (en) * | 1998-04-21 | 2001-06-06 | 英国核燃料公共有限公司 | A protective casing |
| CN101793062A (en) * | 2010-02-11 | 2010-08-04 | 中国电力科学研究院 | Ground insulation device suitable for shields |
| JP2013124872A (en) * | 2011-12-13 | 2013-06-24 | Mitsubishi Heavy Ind Ltd | Rack support structure |
| US20160010787A1 (en) * | 2014-07-08 | 2016-01-14 | Solar Turbines Incorporated | Expansion joint for connecting an exhaust collector of an engine to a duct system |
| DE102014213583A1 (en) * | 2014-07-11 | 2016-01-14 | Bayerische Motoren Werke Aktiengesellschaft | Device for protecting a high pressure gas container of a motor vehicle, high pressure gas container for a motor vehicle and method for producing a high pressure gas container |
| JP2020126084A (en) * | 2016-09-07 | 2020-08-20 | 日立造船株式会社 | Cask manufacturing method |
| CN206505725U (en) * | 2017-01-20 | 2017-09-19 | 中广核研究院有限公司 | Compact pressurized water reactor |
| 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 |
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| CN112489828B (en) | 2024-03-01 |
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