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。

公开(公告)号：US06744840B2

公开(公告)日：2004-06-01

申请号：US10256232

申请日：2002-09-27

申请人： Yoshiji Karino ,  Jun Hamada

发明人： Yoshiji Karino ,  Jun Hamada

IPC分类号： G21C1700

CPC分类号： G21C17/108

摘要： An incore monitoring method of a nuclear reactor, includes, measuring neutron flux levels at pitch levels corresponding to local power range monitor sensors arranged along an axial direction inside a detector assembly installed in a nuclear reactor; performing power calculation, including calculation of thermal characteristics, of fuel assembly group consisting of fuel assemblies adjacent to the corresponding detector assembly, based on indicated values of the local power range monitor sensors of the corresponding detector assembly at a first time, calculating thermal characteristics at a second, subsequent time in which the power calculation is not calculated, based on values indicated by the local power range monitor sensors and calculated thermal characteristics at the first time and values indicated by the corresponding local power range monitor sensors at the second time, and monitoring the calculated thermal characteristics.

摘要翻译： 核反应堆的不良监测方法包括：测量对应于安装在核反应堆中的检测器组件内沿轴向布置的局部功率范围监测传感器的间距级别的中子通量水平; 基于相应的检测器组件的局部功率范围监视传感器的指示值，在第一时间执行由与相应检测器组件相邻的燃料组件组成的燃料组件组的热特性的计算，计算热特性，计算热特性 基于由本地功率范围监视传感器指示的值和第一次计算的热特性以及第二次由相应的局部功率范围监视器传感器指示的值的第二次后续时间计算功率计算，以及 监测计算的热特性。