KR20200133082A - Rack for storage of integral spent nuclear fuel for neutron absorption and shielding - Google Patents

Rack for storage of integral spent nuclear fuel for neutron absorption and shielding Download PDF

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KR20200133082A
KR20200133082A KR1020190057375A KR20190057375A KR20200133082A KR 20200133082 A KR20200133082 A KR 20200133082A KR 1020190057375 A KR1020190057375 A KR 1020190057375A KR 20190057375 A KR20190057375 A KR 20190057375A KR 20200133082 A KR20200133082 A KR 20200133082A
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shielding
nuclear fuel
rack
alloy steel
weight
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KR102203956B1 (en
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최용
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단국대학교 천안캠퍼스 산학협력단
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
    • G21F1/085—Heavy metals or alloys
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/02—Details of handling arrangements
    • G21C19/06—Magazines for holding fuel elements or control elements
    • G21C19/07—Storage racks; Storage pools
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers
    • 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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  • Ceramic Engineering (AREA)
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Abstract

The present invention relates to a rack for storage of integral spent nuclear fuel for neutron absorption and shielding which can reduce the thickness, weight and volume of the rack by making used spent nuclear fuel into an integral type using stainless alloy steel containing neutron absorbers or shielding materials of various materials, and can manufacture the rack in which weakness of mechanical properties of a weld unit is eliminated by manufacturing a seamless square tube structure using the alloy steel with high workability containing neutron absorption and shielding materials. The alloy steel is manufactured by adding and mixing a certain amount of shielding mixture with molten stainless steel, and the alloy steel is formed into a cylindrical or polygonal cylindrical shape through extrusion or compression, or an alloy steel plate formed in a plate shape is welded to form a main body to store and seal the spent nuclear fuel inside.

Description

중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙{Rack for storage of integral spent nuclear fuel for neutron absorption and shielding}Rack for storage of integral spent nuclear fuel for neutron absorption and shielding}

본 발명은 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙에 관한 것으로서, 더욱 상세하게는 사용이 완료된 폐핵연료를 다양한 소재의 중성자 흡수체 또는 차폐소재를 함유한 스테인리스 합금강을 사용하여 일체형으로 만듬으로서 랙의 두께 및 무게, 부피를 줄일 수 있으며, 중성자 흡수 및 차폐 소재가 함유된 가공성이 높은 스텐인레스 합금강을 사용하여 무이음 사각관 구조로 제조함으로써 용접부의 기계적 성질의 약점을 없앤 랙을 제조할 수 있는 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙에 관한 것이다.The present invention relates to an integrated waste nuclear fuel storage rack for neutron absorption and shielding, and in more detail, the used waste nuclear fuel is integrally made by using stainless steel alloy steel containing neutron absorbers or shielding materials of various materials. It can reduce the thickness, weight, and volume, and absorbs neutrons that can manufacture a rack that eliminates the weakness of the mechanical properties of the welded part by manufacturing a seamless square tube structure using stainless steel alloy with high workability containing neutron absorption and shielding materials. And a shielding integrated waste nuclear fuel storage rack.

일반적으로 사용된 핵연료는 중성자를 흡수 또는 차폐하는 재질의 랙에 밀폐 저장되어 수중 또는 지하에 저장되어 폐기된다.Generally used nuclear fuel is sealed and stored in a rack made of a material that absorbs or shields neutrons, and is stored underwater or underground for disposal.

이러한 저장용 랙은 차폐재질의 저장랙에 저장하고, 저장랙의 외부에 강한 강도를 가지는 별도의 외부랙을 형성하여 이중 또는 삼중으로 감싸 중성자가 외부로 유출되지 않도록 한다.Such a storage rack is stored in a storage rack made of a shielding material, and a separate external rack having strong strength is formed outside the storage rack to be wrapped in double or triple to prevent neutrons from leaking to the outside.

그러나, 이러한 저장용 랙은 다중 구조로 이루어지므로 그 제조시간 및 부피가 증가되어 많은 부피의 공간을 차지하게 되므로, 랙이 저장되는 공간이 많이 필요하게 되는 문제점이 있으며, 다중 구조로 랙이 이루어지므로, 적은 양의 사용된 핵연료만 저장되는 문제점이 있다.However, since such a storage rack is made of a multi-structure, the manufacturing time and volume are increased to occupy a large volume of space, so there is a problem that a lot of space for storing the rack is required, and the rack is made in a multi-structure. However, there is a problem that only a small amount of used nuclear fuel is stored.

선행특허는 공간을 한정하고 정사각형인 견고한 구조물과 적어도 상기 빈 공간중 어느 공간에 수용되며 중성자 흡수평판으로 형성되며 적어도 2 개의 지지 격자에 의해 둘러싸인 정사각형의 중성자 흡수패널을 갖는 핵 연료봉 조립체 저장 랙이 기재되어 있다.The prior patent describes a nuclear fuel rod assembly storage rack having a square sturdy structure that defines a space and is accommodated in at least one of the empty spaces, is formed of a neutron absorption plate, and has a square neutron absorption panel surrounded by at least two support grids. Has been.

그러나, 선행특허는 종래의 문제점인 저장용 랙은 다중 구조로 이루어지므로 그 제조시간 및 부피가 증가되어 많은 부피의 공간을 차지하게 되므로, 랙이 저장되는 공간이 많이 필요하게 되는 문제점이 있으며, 다중 구조로 랙이 이루어지므로, 적은 양의 사용된 핵연료만 저장되는 문제점이 그대로 존재하는 문제점이 있다.However, the prior patent has a problem in that a storage rack, which is a conventional problem, has a multi-structure, so that manufacturing time and volume are increased to occupy a large volume of space, and thus a lot of space for storing the rack is required. Since the rack is made in a structure, there is a problem that only a small amount of used nuclear fuel is stored as it is.

선행특허 한국 공개특허공보 제10-1998-071205호(1998.10.26.)Prior Patent Korean Laid-Open Patent Publication No. 10-1998-071205 (1998.10.26.)

본 발명은 사용이 완료된 폐핵연료를 다양한 소재의 중성자 흡수체 또는 차폐소재를 함유한 스테인리스 합금강을 사용하여 일체형으로 만듬으로서 랙의 두께 및 무게, 부피를 줄일 수 있으며, 중성자 흡수 및 차폐 소재가 함유된 가공성이 높은 스텐인레스 합금강을 사용하여 무이음 사각관 구조로 제조함으로써 용접부의 기계적 성질의 약점을 없앤 랙을 제조할 수 있는 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙을 제공하는데 그 목적이 있다.The present invention can reduce the thickness, weight, and volume of the rack by making the used waste nuclear fuel integrally using stainless steel alloys containing neutron absorbers or shielding materials of various materials, and workability containing neutron absorption and shielding materials. Its purpose is to provide an integrated waste fuel storage rack for neutron absorption and shielding that can manufacture a rack that eliminates the weakness of the mechanical properties of the welded part by manufacturing it in a seamless square tube structure using this high stainless steel alloy steel.

상기 과제를 달성하기 위한 본 발명에 따른 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙은, 용융된 상태의 스테인리스 또는 알루미늄으로 이루어지는 금속강에 일정량의 차폐 혼합재를 투입 혼합하여 합금강으로 제조하고, 상기 합금강은 압출 또는 압착을 통해 원통형 또는 다각통형의 형상으로 본체를 형성하고, 상기 본체의 내부에 폐핵연료를 저장하여 밀폐시키는 것을 특징으로 한다.The integrated waste nuclear fuel storage rack for absorbing and shielding neutrons according to the present invention for achieving the above object is made of alloy steel by inputting and mixing a certain amount of shielding mixture into metal steel made of stainless steel or aluminum in a molten state, and the alloy steel Is characterized in that the main body is formed in a cylindrical or polygonal shape through extrusion or compression, and the waste nuclear fuel is stored and sealed inside the main body.

상기 본체는 압연을 통해 판 형상으로 형성하여 용접을 통해 원통형 또는 다각통형의 형상으로 형성되는 것을 특징으로 한다.The main body is characterized in that it is formed in a plate shape through rolling and formed into a cylindrical or polygonal cylindrical shape through welding.

상기 차폐 혼합재는 가돌리륨(Gd), 붕소(B), 에르븀(Er) 또는 사마륨(Sm) 중 하나 또는 두가지 이상을 혼합하여 이루어지는 것을 특징으로 한다.The shielding mixture is characterized in that it is formed by mixing one or two or more of gadolium (Gd), boron (B), erbium (Er), or samarium (Sm).

상기 차폐 혼합재는 합금강 100 중량부 대비 차폐 혼합재를 이루는 한 종류당 0.01 ~ 2 중량부가 투입되고, 상기 스테인리스 강은 합금강 100 중량부 대비 99.99 ~ 92 중량부로 이루어지며, 상기 차폐 혼합재의 종류당 0.01 ~ 2 중량부가 감소되는 것을 특징으로 한다.The shielding mixture is 0.01 to 2 parts by weight per type constituting the shielding mixture compared to 100 parts by weight of alloy steel, and the stainless steel is made of 99.99 to 92 parts by weight based on 100 parts by weight of alloy steel, and 0.01 to 2 parts by weight per type of the shielding mixture. It is characterized in that the weight is reduced.

본 발명은 사용이 완료된 폐핵연료를 다양한 소재의 중성자 흡수체 또는 차폐소재를 함유한 스테인리스 합금강을 사용하여 일체형으로 만듬으로서 랙의 두께 및 무게, 부피를 줄일 수 있는 효과가 있다.The present invention has the effect of reducing the thickness, weight, and volume of a rack by making the used waste nuclear fuel integrally using stainless steel alloy steel containing neutron absorbers or shielding materials of various materials.

또한, 중성자 흡수 및 차폐 소재가 함유된 가공성이 높은 스텐인레스 합금강을 사용하여 무이음 사각관 구조로 제조함으로써 용접부의 기계적 성질의 약점을 없앤 랙을 제조할 수 있는 효과가 있다.In addition, there is an effect of manufacturing a rack that eliminates the weakness of the mechanical properties of the welded portion by manufacturing it in a seamless square tube structure using stainless steel alloy having high workability containing neutron absorption and shielding material.

도 1은 본 발명의 일 실시예에 따른 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙의 형성 및 사용과정을 나타내는 도면이다.1 is a view showing the formation and use process of the integrated waste nuclear fuel storage rack for neutron absorption and shielding according to an embodiment of the present invention.

이하 본 발명의 실시를 위한 구체적인 실시예를 도면을 참고하여 설명한다. 본 발명의 실시예는 하나의 발명을 설명하기 위한 것으로서 권리범위는 예시된 실시예에 한정되지 아니하고, 예시된 도면은 발명의 명확성을 위하여 핵심적인 내용만 확대 도시하고 부수적인 것을 생략하였으므로 도면에 한정하여 해석하여서는 아니 된다.Hereinafter, specific embodiments for carrying out the present invention will be described with reference to the drawings. Embodiments of the present invention are for explaining one invention, and the scope of rights is not limited to the illustrated embodiments, and the illustrated drawings are limited to the drawings because only the essential content is enlarged and ancillary items are omitted for clarity of the invention. And should not be interpreted.

본 발명은 용융된 상태의 스테인리스 또는 알루미늄으로 이루어지는 금속강(1)에 일정량의 차폐 혼합재(2)를 투입 혼합하여 합금강으로 제조하고, 상기 합금강은 압출 또는 압착을 통해 원통형 또는 다각통형의 형상으로 본체(20)를 형성하고, 상기 본체(20)의 내부에 폐핵연료(3)를 저장하여 밀폐시키는 것을 특징으로 한다.The present invention is made of alloy steel by inputting and mixing a certain amount of shielding mixture 2 into metal steel 1 made of stainless steel or aluminum in a molten state, and the alloy steel is formed into a cylindrical or polygonal cylindrical shape through extrusion or compression. (20) is formed, and the waste nuclear fuel (3) is stored in the interior of the main body (20) and sealed.

상기 본체(20)는 압연을 통해 판 형상으로 형성하여 용접을 통해 원통형 또는 다각통형의 형상으로 형성되는 것을 특징으로 한다.The main body 20 is characterized in that it is formed in a plate shape through rolling and formed into a cylindrical or polygonal cylindrical shape through welding.

상기 차폐 혼합재(2)는 가돌리륨(Gd), 붕소(B), 에르븀(Er) 또는 사마륨(Sm) 중 하나 또는 두가지 이상을 혼합하여 이루어지는 것을 특징으로 한다.The shielding mixture 2 is characterized in that it is formed by mixing one or two or more of gadolilium (Gd), boron (B), erbium (Er), or samarium (Sm).

상기 차폐 혼합재(2)는 합금강 100 중량부 대비 차폐 혼합재(2)를 이루는 한 종류당 0.01 ~ 2 중량부가 투입되고, 상기 금속강(1)은 합금강 100 중량부 대비 99.99 ~ 92 중량부로 이루어지며, 상기 차폐 혼합재(2)의 종류당 0.01 ~ 2 중량부가 감소되는 것을 특징으로 한다.The shielding mixture 2 is 0.01 to 2 parts by weight per type constituting the shielding mixture 2 relative to 100 parts by weight of alloy steel, and the metal steel 1 is made of 99.99 to 92 parts by weight compared to 100 parts by weight of alloy steel, It is characterized in that 0.01 ~ 2 parts by weight per type of the shielding mixture (2) is reduced.

도 1은 본 발명의 일 실시예에 따른 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙의 형성 및 사용과정을 나타내는 도면으로서, 용융된 상태의 스테인리스 또는 알루미늄으로 이루어지는 금속강(1)에 일정량의 차폐 혼합재(2)를 투입 혼합하여 합금강으로 제조하고, 상기 합금강은 압출 또는 압착을 통해 원통형 또는 다각통형의 형상으로 본체(20)를 형성하고, 상기 본체(20)의 내부에 폐핵연료(3)를 저장하여 밀폐시킨다.1 is a view showing the formation and use process of the integrated waste nuclear fuel storage rack for absorbing and shielding neutrons according to an embodiment of the present invention, shielding a certain amount of metal steel 1 made of stainless steel or aluminum in a molten state Mixing material (2) is input and mixed to produce alloy steel, and the alloy steel is formed into a cylindrical or polygonal cylindrical shape through extrusion or compression, and waste nuclear fuel (3) is placed inside the main body (20). Store and seal.

상기 금속강(1)은 용융된 상태로 구비되어 차폐 혼합재(2)가 쉽게 용융되어 혼합될 수 있도록 한다.The metal steel 1 is provided in a molten state so that the shielding mixture 2 can be easily melted and mixed.

이러한 상기 금속강(1)은 스테인리스 또는 알루미늄 재질로서 오랜시간 지나도 녹이 발생되지 않는 재질로 이루어진다.The metal steel 1 is made of a stainless steel or aluminum material that does not rust even after a long time.

상기 용융된 상태의 금속강(1)에 차폐 혼합재(2)가 투입되어 합금강으로 제조된다.The shielding mixture (2) is added to the molten metal steel (1) to be made of alloy steel.

상기 차폐 혼합재(2)가 혼합된 합금강은 압출장치(10) 또는 압축장치(10)를 통해 원통형 또는 다각통형의 형상으로 본체(20)가 형성되고, 본체(20)의 일측면이 밀폐되어 내부에 공간이 형성된다.The alloy steel in which the shielding mixture 2 is mixed has a body 20 formed in a cylindrical or polygonal shape through an extrusion device 10 or a compression device 10, and one side of the body 20 is sealed to A space is formed in the

상기 합금강은 금속강(1)인 스테인리스 또는 알루미늄 중 어느 하나와 차폐 혼합재(2)가 혼합되어 형성되는 것이다.The alloy steel is formed by mixing any one of stainless steel or aluminum which is a metal steel 1 and a shielding mixture 2.

상기 본체(20)는 합금강을 판 형상으로 형성하여 합금강판을 제조하고, 합금강판을 원통형 또는 다각형의 형상으로 용접하여 본체(20)로 제조하고, 본체(20)의 일측면이 밀폐되도록 하여 내부 공간이 형성되도록 형성된다.The main body 20 is formed by forming an alloy steel in a plate shape to manufacture an alloy steel plate, and the alloy steel plate is welded in a cylindrical or polygonal shape to form the main body 20, and one side of the main body 20 is sealed so that the inside It is formed to form a space.

상기 본체(20)의 내부 공간에 사용이 완료된 폐핵연료(3)를 저장하고, 개방된 측면을 합금강판으로 밀폐시켜 랙으로 형성하게 된다.The used waste fuel 3 is stored in the inner space of the main body 20, and the open side is sealed with an alloy steel plate to form a rack.

상기 본체(20)를 이루는 금속강(1)과 혼합되는 차폐 혼합재(2)는 가돌리륨(Gd), 붕소(B), 에르븀(Er) 또는 사마륨(Sm) 중 하나 또는 두가지 이상을 혼합하여 이루어진다.The shielding mixture (2) mixed with the metal steel (1) constituting the body (20) is a mixture of one or two or more of gadolium (Gd), boron (B), erbium (Er), or samarium (Sm). Done.

즉, 상기 차폐 혼합재(2)가 가돌리륨(Gd), 붕소(B), 에르븀(Er) 또는 사마륨(Sm) 중 어느 하나로 이루어지거나, 둘 이상이 혼합되어 금속강(1)과 혼합되어 합금강으로 형성된다.That is, the shielding mixture (2) is made of any one of gadolilium (Gd), boron (B), erbium (Er), or samarium (Sm), or two or more are mixed with metal steel 1 to be alloyed steel Is formed by

상기 차폐 혼합재(2)가 하나의 종류일 경우 0.01 ~ 2 중량부로 이루어져 스테인리스강과 혼합되며, 스테인리스강은 이와 대응되도록 99.99 ~ 98 중량부로 이루어진다.When the shielding mixture 2 is of one type, it is composed of 0.01 to 2 parts by weight and mixed with stainless steel, and the stainless steel is composed of 99.99 to 98 parts by weight to correspond thereto.

상기 차폐 혼합재(2) 두가지가 혼합될 경우 각각의 종류가 0.01 ~ 2 중량부로 이루어져 총 중량이 0.02 ~ 4 중량부로 이루어지고, 이와 대응되도록 금속강(1)이 99.98 ~ 96 중량부로 이루어진다.When the two shielding mixtures 2 are mixed, each type is made up of 0.01 to 2 parts by weight, and the total weight is made up of 0.02 to 4 parts by weight, and the metal steel 1 is made up of 99.98 to 96 parts by weight to correspond thereto.

상기 차폐 혼합재(2) 세가지가 혼합될 경우 각각의 0.01 ~ 2 중량부로 이루어져 총 중량이 0.03 ~ 6 중량부로 이루어지고, 이와 대응되도록 금속강(1)이 99.97 ~ 94 중량부로 이루어진다.When the three shielding mixtures 2 are mixed, each consists of 0.01 to 2 parts by weight, and the total weight is made up of 0.03 to 6 parts by weight, and the metal steel 1 is made up of 99.97 to 94 parts by weight to correspond thereto.

상기 차폐 혼합재(2) 네가지가 혼합될 경우 각각의 0.01 ~ 2 중량부로 이루어져 총 중량이 0.04 ~ 8 중량부로 이루어지고, 이와 대응되도록 금속강(1)이 99.96 ~ 92 중량부로 이루어진다.When the four shielding mixtures 2 are mixed, each consists of 0.01 to 2 parts by weight, and the total weight is made of 0.04 to 8 parts by weight, and the metal steel 1 is made up of 99.96 to 92 parts by weight to correspond thereto.

즉, 상기 차폐 혼합재(2)의 혼합되는 숫자가 하나씩 증가될 때 각각의 재질이 0.01 ~ 2 중량부씩 증가되어 혼합되고, 이와 대응되는 금속강(1)의 중량은 99.98 ~ 92 중량부로 이루어져 0.01 ~ 2 중량부씩 감소되어 혼합되어 진다.That is, when the number to be mixed of the shielding mixture 2 is increased one by one, each material is mixed by increasing 0.01 to 2 parts by weight, and the weight of the metal steel 1 corresponding thereto is made up of 99.98 to 92 parts by weight and 0.01 to 92 parts by weight. It is mixed by decreasing by 2 parts by weight.

이러한 본 발명의 랙을 제조하고, 이를 이용하여 사용한 폐핵연료(3)를 밀폐저장하는 과정을 설명하면 다음과 같다.The process of manufacturing the rack of the present invention and sealing the used waste nuclear fuel 3 by using it will be described as follows.

먼저, 용융된 상태의 금속강(1)에 일정량의 차폐 혼합재(2)를 투입 혼합하여 합금강으로 제조한다.First, a certain amount of the shielding mixture 2 is added to the molten metal steel 1 and mixed to prepare an alloy steel.

그리고, 상기 제조된 합금강을 일측이 밀폐되는 원통형 또는 다각통형의 형상으로 압출 또는 압축 공정을 통해 본체(20)를 형성하거나, 판 형상으로 형성하여 일측이 밀폐되는 원통형 또는 다각통형의 형상으로 용접하여 본체(20)를 형성하게 된다.And, by forming the main body 20 through an extrusion or compression process in the shape of a cylindrical or polygonal cylindrical shape with one side sealed, or formed in a plate shape and welded into a cylindrical or polygonal cylindrical shape with one side sealed. The body 20 is formed.

이렇게 형성되는 상기 본체(20)의 내부에 사용이 완료된 폐핵연료(3)를 저장하고, 개방된 측면을 합금강판으로 밀폐시키게 된다.The used waste nuclear fuel 3 is stored in the body 20 formed in this way, and the open side is sealed with an alloy steel plate.

이와 같이 이루어지는 본 발명은 사용이 완료된 폐핵연료를 다양한 소재의 중성자 흡수체 또는 차폐소재를 함유한 스테인리스 합금강을 사용하여 일체형으로 만듬으로서 랙의 두께 및 무게, 부피를 줄일 수 있는 효과가 있다.The present invention made as described above has the effect of reducing the thickness, weight, and volume of the rack by making the used waste nuclear fuel integrally using stainless steel alloy steel containing neutron absorbers or shielding materials of various materials.

또한, 중성자 흡수 및 차폐 소재가 함유된 가공성이 높은 스텐인레스 합금강을 사용하여 무이음 사각관 구조로 제조함으로써 용접부의 기계적 성질의 약점을 없앤 랙을 제조할 수 있는 효과가 있다.In addition, there is an effect of manufacturing a rack that eliminates the weakness of the mechanical properties of the welded portion by manufacturing it in a seamless square tube structure using stainless steel alloy having high workability containing neutron absorption and shielding material.

상기와 같은 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙은 위에서 설명된 실시예들의 구성과 작동 방식에 한정되는 것이 아니다. 상기 실시예들은 각 실시예들의 전부 또는 일부가 선택적으로 조합되어 다양한 변형이 이루어질 수 있도록 구성될 수도 있다.The integrated waste nuclear fuel storage rack for neutron absorption and shielding as described above is not limited to the configuration and operation of the embodiments described above. The above embodiments may be configured so that all or a part of each of the embodiments may be selectively combined and various modifications may be made.

1 : 금속강 2 : 차폐 혼합재
3 : 폐핵연료
10 : 압출장치, 압축장치 20 : 본체1: metal steel 2: shielding mixture
3: waste nuclear fuel
10: extrusion device, compression device 20: main body

Claims (4)

용융된 상태의 스테인리스 또는 알루미늄으로 이루어지는 금속강(1)에 일정량의 차폐 혼합재(2)를 투입 혼합하여 합금강으로 제조하고, 상기 합금강은 압출 또는 압착을 통해 원통형 또는 다각통형의 형상으로 본체(20)를 형성하고, 상기 본체(20)의 내부에 폐핵연료(3)를 저장하여 밀폐시키는 것을 특징으로 하는 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙.
A certain amount of shielding mixture (2) is added to and mixed with metal steel (1) made of stainless steel or aluminum in a molten state, and the alloy steel is formed into a cylindrical or polygonal cylindrical shape through extrusion or compression. Forming, and storing the waste nuclear fuel (3) in the interior of the body (20), characterized in that the neutron absorption and shielding integrated waste nuclear fuel storage rack.
 제1항에 있어서,
상기 본체(20)는 압연을 통해 판 형상으로 형성하여 용접을 통해 원통형 또는 다각통형의 형상으로 형성되는 것을 특징으로 하는 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙.
The method of claim 1,
The main body 20 is formed in a plate shape through rolling and formed in a cylindrical or polygonal shape through welding. An integrated waste fuel storage rack for neutron absorption and shielding.
 제1항에 있어서,
상기 차폐 혼합재(2)는 가돌리륨(Gd), 붕소(B), 에르븀(Er) 또는 사마륨(Sm) 중 하나 또는 두가지 이상을 혼합하여 이루어지는 것을 특징으로 하는 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙.
The method of claim 1,
The shielding mixture (2) is an integrated waste fuel storage for neutron absorption and shielding, characterized in that a mixture of one or two or more of gadolium (Gd), boron (B), erbium (Er), or samarium (Sm) Dragon rack.
 제3항에 있어서,
상기 차폐 혼합재(2)는 합금강 100 중량부 대비 차폐 혼합재(2)를 이루는 한 종류당 0.01 ~ 2 중량부가 투입되고, 상기 금속강(1)은 합금강 100 중량부 대비 99.99 ~ 92 중량부로 이루어지며, 상기 차폐 혼합재(2)의 종류당 0.01 ~ 2 중량부가 감소되는 것을 특징으로 하는 중성자 흡수 및 차폐용 일체형 폐핵연료 저장용 랙.The method of claim 3,
The shielding mixture 2 is 0.01 to 2 parts by weight per type constituting the shielding mixture 2 relative to 100 parts by weight of alloy steel, and the metal steel 1 is made of 99.99 to 92 parts by weight compared to 100 parts by weight of alloy steel, An integrated waste nuclear fuel storage rack for neutron absorption and shielding, characterized in that 0.01 to 2 parts by weight per type of the shielding mixture (2) is reduced.
KR1020190057375A 2019-05-16 2019-05-16 Rack for storage of integral spent nuclear fuel for neutron absorption and shielding KR102203956B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980071205A (en) 1997-02-10 1998-10-26 보이딘 미첼 Nuclear fuel rod assembly storage rack
JP2002020828A (en) * 2000-07-06 2002-01-23 Mitsubishi Heavy Ind Ltd Aluminum alloy material, its production method and basket and cask using the same
JP2006177697A (en) * 2004-12-21 2006-07-06 Taiheiyo Cement Corp Neutron-absorbing material and its manufacturing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980071205A (en) 1997-02-10 1998-10-26 보이딘 미첼 Nuclear fuel rod assembly storage rack
JP2002020828A (en) * 2000-07-06 2002-01-23 Mitsubishi Heavy Ind Ltd Aluminum alloy material, its production method and basket and cask using the same
JP2006177697A (en) * 2004-12-21 2006-07-06 Taiheiyo Cement Corp Neutron-absorbing material and its manufacturing method

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