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    • 2. 发明专利
    • Container vessel of radioactive material
    • 放射性物质的集装箱
    • JP2003028987A
    • 2003-01-29
    • JP2001209705
    • 2001-07-10
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • MATSUNAGA KENICHIABE IWAJIKAMI KOICHIASADA KAZUOKITA YOSHINAGAINOUE SHIZUO
    • G21C19/32G21C19/06G21F5/08G21F5/12
    • PROBLEM TO BE SOLVED: To provide a container vessel capable of maintaining high tightness for radiation, even when droppage and fall down of a canister occur.
      SOLUTION: A transportation cask is provided with a nearly cylindrical body 10 and a canister 30, containing spent fuel assemblies 36 in the body. The upper end opening of the canister body 32 of the canister is closed with a canister primary lid 42 and canister secondary lid 44 welded to the cask body. The canister secondary lid is installed in the upper end opening of the canister body over the canister primary lid, while contacting the outer surface of the canister primary lid. The upper end opening of the canister body is closed with a lid 20, and the lid is attached to the canister body, while contacting the outer surface of the canister secondary lid.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:即使发生罐的跌落和下落,也能够提供能够保持高的辐射密封性的容器容器。 解决方案:运输桶具有几乎圆柱形的主体10和一个容纳在体内的乏燃料组件36的罐30。 罐体的罐主体32的上端开口用焊接在桶体上的罐主盖42和罐二次盖44封闭。 罐子二次盖安装在罐主体上方的上端开口上,同时与罐主盖的外表面接触。 罐主体的上端开口用盖子20封闭,盖子与罐体二次盖的外表面接触而安装在罐体上。
    • 3. 发明专利
    • Welding jig and welding device for control rod drive device housing
    • 用于控制驱动装置外壳的焊接接头和焊接装置
    • JP2012106255A
    • 2012-06-07
    • JP2010256281
    • 2010-11-16
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • INOUE SHIZUO
    • B23K37/02B23K9/00B23K37/00G21C7/14G21C19/02G21C19/20
    • B23K37/0533
    • PROBLEM TO BE SOLVED: To easily perform the welding of a control rod drive housing by properly introducing shielding gas.SOLUTION: A welding jig 1 for welding the control rod drive housing for welding a canopy seal 166 which is provided in circumferential form with the control rod drive housing formed in a cylindrical form along the circumference includes: a jig body 2 which is formed in an annular shape along the circumference of the canopy seal 166 and arranged by facing the inner peripheral surface to the groove portion of the canopy seal 166; a gas introduction portion 3 which has an introduction opening 3a on the outside of the annular shape of jig body 2, also has a discharge opening on the side of the inner peripheral surface of the jig body 2 and penetrates the interior of the jig body 2; a welding torch arranging portion 4 which is formed by notching a part of the jig body 2 and which drives through the outside of the annular shape and the inside of the jig body 2; and a guide portion 5 for holding the jig body 2 so that the inner peripheral surface of the jig body 2 is provided on the position opposed to the groove portion of the canopy seal 166 by being provided on the jig body 2 and being brought into contact with the control rod drive housing.
    • 要解决的问题:通过适当地引入保护气体来容易地进行控制棒驱动器壳体的焊接。 焊接夹具1,用于焊接用于焊接圆周密封件166的控制棒驱动壳体,其中沿着圆周形成圆柱形的控制杆驱动壳体包括:夹具本体2,其为 沿着顶盖密封件166的圆周形成环形,并且通过面对内罩表面而布置在顶篷密封件166的凹槽部分上; 在夹具本体2的环状外侧具有导入口3a的气体导入部3也在夹具本体2的内周面侧具有排出口,贯通夹具本体2的内部 ; 通过切割夹具本体2的一部分并且通过环形的外侧和夹具本体2的内部驱动而形成的焊枪配置部4; 以及用于保持夹具本体2的引导部分5,使得夹具本体2的内周面通过设置在夹具本体2上并与其接触而设置在与顶盖密封件166的槽部相对的位置上 与控制杆驱动器外壳。 版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Transportation cask for radioactive material and installation method for sealed vessel
    • 放射性物质的运输箱和密封船的安装方法
    • JP2003014889A
    • 2003-01-15
    • JP2001200175
    • 2001-06-29
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • MATSUNAGA KENICHIABE IWAJIKAMI KOICHIENAMI KOJIWAKAYAMA SEIICHIKITA YOSHINAGAINOUE SHIZUO
    • G21C19/32G21F5/00G21F5/08G21F5/12
    • G21F5/12Y10T137/6866Y10T137/86308
    • PROBLEM TO BE SOLVED: To provide a transportation cask capable of preventing contamination of canister outer surface during installing radioactive materials and a canister, arid simplifying the installation work. SOLUTION: The transportation cask is provided with a nearly cylindrical main body 10, and in the body, a canister 30 containing spent fuel assemblies is contained. The upper end opening of the vessel body 32 of the canister is closed with a primary lid 42 and a secondary lid 44. In between the upper end inner surface of the main body and the upper end outer surface of the vessel body 32, an annular elastic tube 50 is provided to seal them, which prevent fluid from invading in the gap between the canister outer surface and the main body inner surface from the upper opening side of the main body. In between the upper end inner surface of the main body and the upper end outer surface of the vessel body 32, an inspection space 16 is formed to insert an inspection probe for detecting the welding state of the primary lid and the secondary lid.
    • 要解决的问题:提供一种在安装放射性物质和罐时能够防止罐外表面污染的运输桶,并且简化了安装工作。 解决方案:运输桶具有近似圆筒形的主体10,并且在主体中包含容纳乏燃料组件的罐30。 罐体的容器主体32的上端开口用主盖42和副盖44封闭。在主体的上端内表面和容器主体32的上端外表面之间,环形 提供弹性管50以密封它们,防止流体从主体的上部开口侧侵入到罐外表面和主体内表面之间的间隙中。 在主体的上端内表面和容器主体32的上端外表面之间,形成检查空间16,以插入用于检测主盖和辅助盖的焊接状态的检查探针。