公开(公告)号：US20080205574A1

公开(公告)日：2008-08-28

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： G21C7/08

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，前端结构构件的横截面为十字形，并且包括结合到翼的前端的托架，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。