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1. 发明专利

JP2003014880A Airtight vessel for radioactive material, airtight welding method for the airtight vessel and exhaust device used for the airtight welding 有权
标题翻译：用于放射性材料的空气容器，用于空气焊接的空气流化床和排气装置的空气焊接方法
公开(公告)号：JP2003014880A
公开(公告)日：2003-01-15
申请号：JP2001200174
申请日：2001-06-29
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： MATSUNAGA KENICHI , ABE IWAJI , MURAKAMI KAZUO , KAMI KOICHI , SHIGE TAKASHI , KITA YOSHINAGA , INOUE SHIZUO , BANDAI TSUNEO
IPC分类号： G21C19/06 , B23K9/00 , G21F5/00 , G21F5/005 , G21F5/008 , G21F5/12
CPC分类号： G21F5/12 , G21F5/005 , G21Y2002/104 , G21Y2002/206 , G21Y2002/303 , G21Y2002/501 , G21Y2004/30 , G21Y2004/40
摘要： PROBLEM TO BE SOLVED: To provide an airtight metal vessel which prevents generation of welding defect and is superior in airtightness, an airtight welding method for the airtight vessel and an exhaust device used for the airtight welding.
SOLUTION: A shield body 44 is installed in the upper end opening of a vessel body 40 containing a radioactive material to seal the upper end opening of the vessel body. At the periphery of the shield plate, an O-ring 46 is provided to seal the gap between the inner surface of the vessel body and the shield body. In the upper end opening of the vessel body, a primary lid 48 is installed overlapping the shield plate of which the periphery is welded to the inner surface of the vessel body. When the primary lid is welded, steam in the vessel body is exhausted out of an exhaust hole 50 formed in the primary lid and the shield plate and shield gas is filled or passed in the space 30 formed in the periphery of the lid to shield inflow of steam into the welding part.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种防止焊接缺陷产生并且气密性优异的气密金属容器，用于气密容器的气密焊接方法和用于气密焊接的排气装置。解决方案：屏蔽体44安装在容器主体40的上端开口中，容器本体40包含放射性物质以密封容器主体的上端开口。在屏蔽板的周边设有O形环46，以密封容器本体的内表面和屏蔽体之间的间隙。在容器主体的上端开口部中，将与外周焊接的屏蔽板重叠的主盖体48安装在容器主体的内表面。当初级盖被焊接时，容器主体中的蒸汽从形成在主盖和屏蔽板中的排气孔50排出，并且屏蔽气体填充或通过形成在盖的周边的空间30中以屏蔽流入的蒸汽进入焊接部分。

2. 发明专利

JP2003139887A CANISTER 审中-公开
公开(公告)号：JP2003139887A
公开(公告)日：2003-05-14
申请号：JP2001336904
申请日：2001-11-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： MATSUNAGA KENICHI , ABE IWAJI , MURAKAMI KAZUO , KAMI KOICHI , SHIGE TAKASHI , KITA YOSHINAGA , INOUE SHIZUO
IPC分类号： G21C19/32 , G21C19/06 , G21F5/12 , G21F9/36
摘要： PROBLEM TO BE SOLVED: To provide a canister having high air-tightness and capability of easily confirming air-tightness. SOLUTION: The canister 10 is provided with a nearly cylindrical vessel body 14 containing radioactive materials, and the vessel body has a closed bottom end and an open top end and a flange 12 placed around the top open end. In the open top end of the vessel body, a primary lid 28 is installed and its edge part is welded to the inner surface of the vessel body. On the top open end of the vessel body, a secondary lid 32 is also installed over the primary lid and fixed to the flange with bolts so as to provide a closed space for inspection 36 between it and the primary lid.

3. 发明专利

JP2003014889A Transportation cask for radioactive material and installation method for sealed vessel 有权
标题翻译：放射性物质的运输箱和密封船的安装方法
公开(公告)号：JP2003014889A
公开(公告)日：2003-01-15
申请号：JP2001200175
申请日：2001-06-29
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： MATSUNAGA KENICHI , ABE IWAJI , KAMI KOICHI , ENAMI KOJI , WAKAYAMA SEIICHI , KITA YOSHINAGA , INOUE SHIZUO
IPC分类号： G21C19/32 , G21F5/00 , G21F5/08 , G21F5/12
CPC分类号： G21F5/12 , Y10T137/6866 , Y10T137/86308
摘要： 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.
摘要翻译：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。

4. 发明专利

JP2003172794A CANISTER 审中-公开
公开(公告)号：JP2003172794A
公开(公告)日：2003-06-20
申请号：JP2001372992
申请日：2001-12-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： MATSUNAGA KENICHI , ABE IWAJI , MURAKAMI KAZUO , KAMI KOICHI , ITO HITOMI , KOBAYASHI TAKAAKI , KITA YOSHINAGA , INOUE SHIZUO
IPC分类号： G21C19/32 , G21C19/06 , G21F1/04 , G21F1/08 , G21F9/36
摘要： PROBLEM TO BE SOLVED: To provide a canister capable of safely and stably storing a radioactive material for a long period. SOLUTION: The canister 14 comprises an almost cylindrical metal vessel body 40 having a lower end opening closed by a bottom wall 41 and storing the radioactive material and a cover body welded to the upper end opening of the vessel body and closing the upper end opening. The vessel body has a lower part 40a including the bottom wall, a middle part 40b following the lower part and an upper part 40c to which the cover body is welded. The lower part is formed of a higher anticorrosive material than that of each of the middle part and the upper part, and the upper part having an inner periphery face machined to a preset dimension is welded to the middle part. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2003028987A Container vessel of radioactive material 有权
标题翻译：放射性物质的集装箱
公开(公告)号：JP2003028987A
公开(公告)日：2003-01-29
申请号：JP2001209705
申请日：2001-07-10
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： MATSUNAGA KENICHI , ABE IWAJI , KAMI KOICHI , ASADA KAZUO , KITA YOSHINAGA , INOUE SHIZUO
IPC分类号： G21C19/32 , G21C19/06 , G21F5/08 , G21F5/12
摘要： 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
摘要翻译：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。

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