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公开(公告)号:US08699652B2
公开(公告)日:2014-04-15
申请号:US12034966
申请日:2008-02-21
申请人: Yuuji Saito , Mitsuharu Nakamura , Makoto Ueda , Yoshinori Katayama , Motoji Tsubota , Satoko Tajima , Yoshiji Karino , Kenichi Yoshioka , Kosaku Tsumita
发明人: Yuuji Saito , Mitsuharu Nakamura , Makoto Ueda , Yoshinori Katayama , Motoji Tsubota , Satoko Tajima , Yoshiji Karino , Kenichi Yoshioka , Kosaku Tsumita
IPC分类号: G21C7/06
CPC分类号: G21C7/113 , G21C21/18 , G21Y2002/206 , G21Y2004/30 , G21Y2004/40 , Y02E30/31 , Y02E30/39
摘要: A control rod for nuclear reactors includes four wings including neutron absorbers containing hafnium, a front end structural member which has a cross shape in cross section and includes brackets bonded to the leading ends of the wings, and a terminal end structural member which has a cross shape in cross section and includes brackets bonded to the tailing ends of the wings. The four wings are bonded to a wing-bonding member including a cross-shaped center shaft so as to form a cross shape. The front end structural member and the wing-bonding member are made of a zirconium alloy. The wings include neutron-absorbing plates having neutron-absorbing portions and each have an outer surface which is opposed to a fuel assembly and at which a hafnium-zircaloy composite member covered with zircaloy is disposed. The neutron-absorbing plates are opposed to each other with trap spaces disposed therebetween.
摘要翻译: 用于核反应堆的控制棒包括四个翼,包括含有铪的中子吸收体,前端结构构件的截面十字形,并且包括结合到翼的前端的支架,以及具有十字形的末端结构构件 并且包括结合到翼的尾端的支架。 四个翼结合到包括十字形中心轴的翼接合构件以形成十字形状。 前端结构构件和翼缘接合构件由锆合金制成。 机翼包括具有中子吸收部分的中子吸收板,并且每个都具有与燃料组件相对的外表面,并且设置有用锆石覆盖的铪 - 氧化锆复合材料构件。 中子吸收板彼此相对,在它们之间设置有捕获空间。
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公开(公告)号:US20080130820A1
公开(公告)日:2008-06-05
申请号:US11852528
申请日:2007-09-10
申请人: Masaru UKAI , Kosaku Tsumita , Ryoma Kato , Kenjiro Fukamichi , Yuji Yamada , Makoto Sato , Tadaaki Shimazu , Tomoharu Tanabe , Hirotoshi Matsumura , Keiji Matsunaga , Ken Okuda
发明人: Masaru UKAI , Kosaku Tsumita , Ryoma Kato , Kenjiro Fukamichi , Yuji Yamada , Makoto Sato , Tadaaki Shimazu , Tomoharu Tanabe , Hirotoshi Matsumura , Keiji Matsunaga , Ken Okuda
IPC分类号: G21C15/243
CPC分类号: G21C5/06 , G21C3/3206 , Y02E30/40
摘要: A fuel inlet mechanism to introduce a coolant into a fuel assembly configured to be charged in a light water nuclear reactor, includes, a filter catching a foreign substance included in the coolant on an upstream side of the fuel assembly, the filter having a plurality of through holes to pass the coolant, and the through holes having an inlet portion, an outlet portion and at least one bent portion to a degree by which the outlet portion cannot be seen through from the inlet portion by a straight line.
摘要翻译: 一种用于将冷却剂引入构造成装入轻水核反应堆的燃料组件中的燃料入口机构,包括:过滤器,其在所述燃料组件的上游侧捕获包含在所述冷却剂中的异物,所述过滤器具有多个 通孔用于使冷却剂通过,并且通孔具有入口部分,出口部分和至少一个弯曲部分,直到入口部分不能通过直线从出口部分看到的程度。
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公开(公告)号:US20050276367A1
公开(公告)日:2005-12-15
申请号:US11207777
申请日:2005-08-22
申请人: Masaru Ukai , Kosaku Tsumita , Ryoma Kato , Kenjiro Fukamichi , Yuji Yamada , Makoto Sato , Tadaaki Shimazu , Tomoharu Tanabe , Hirotoshi Matsumura , Keiji Matsunaga , Ken Okuda
发明人: Masaru Ukai , Kosaku Tsumita , Ryoma Kato , Kenjiro Fukamichi , Yuji Yamada , Makoto Sato , Tadaaki Shimazu , Tomoharu Tanabe , Hirotoshi Matsumura , Keiji Matsunaga , Ken Okuda
CPC分类号: G21C5/06 , G21C3/3206 , Y02E30/40
摘要: A fuel inlet mechanism to introduce a coolant into a fuel assembly configured to be charged in a light water nuclear reactor, includes, a filter catching a foreign substance included in the coolant on an upstream side of the fuel assembly, the filter having a plurality of through holes to pass the coolant, and the through holes having an inlet portion, an outlet portion and at least one bent portion to a degree by which the outlet portion cannot be seen through from the inlet portion by a straight line.
摘要翻译: 一种用于将冷却剂引入构造成装入轻水核反应堆的燃料组件中的燃料入口机构,包括:过滤器,其在所述燃料组件的上游侧捕获包含在所述冷却剂中的异物,所述过滤器具有多个 通孔用于使冷却剂通过,并且通孔具有入口部分,出口部分和至少一个弯曲部分,直到入口部分不能通过直线从出口部分看到的程度。
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