公开(公告)号：US5186890A

公开(公告)日：1993-02-16

申请号：US663432

申请日：1991-03-01

申请人： Masahisa Ohashi ,  Shusaku Sawada ,  Motomu Sogame ,  Yoshiaki Oomasa ,  Kunikazu Kaneto

发明人： Masahisa Ohashi ,  Shusaku Sawada ,  Motomu Sogame ,  Yoshiaki Oomasa ,  Kunikazu Kaneto

IPC分类号： G21C5/00 ,  G21C3/30 ,  G21C3/32 ,  G21C3/324

CPC分类号： G21C3/32 ,  Y02E30/40

摘要： A fuel containment containing nuclear fuel rods of a fuel assembly which will be loaded into a reactor core of a fast breeder reactor is formed narrow in width at middle portion of vertical direction and long in length of vertical direction. And as being used in the reactor core, the middle portion of vertical direction of the fuel containment, wherein both of heat generation and swelling are larger than that of other portion, expands more than other portion, but undesirable contact with adjacent fuel assemblies can be avoided as the middle portion is previously formed narrow. Moreover, the other portions, wherein expansion of the fuel containment and undesirable contact with adjacent fuel assemblies are barely caused, are formed previously wide in width by enlarging the coolant flow path of the fuel containment, whereby pressure drop of coolant of coolant used in the reactor core can be reduced.

摘要翻译： 将装载到快速增殖反应堆的反应堆堆芯中的燃料组件的核燃料棒的燃料容器在垂直方向的中间部分和垂直方向长度上形成为宽度窄。 并且在反应堆堆芯中使用燃料容器垂直方向的中间部分，其中发热和膨胀均大于其它部分，其膨胀比其他部分膨胀，但是与邻近的燃料组件的不期望的接触可以是 避免了中间部分先前形成的狭窄。 此外，通过扩大燃料容纳物的冷却剂流动路径，其中几乎不会导致燃料容纳物的膨胀和与相邻的燃料组件的不期望的接触的其它部分预先宽度地形成，由此在 反应堆堆芯可以减少。

公开(公告)号：US4647421A

公开(公告)日：1987-03-03

申请号：US597032

申请日：1984-04-05

申请人： Masahisa Ohashi ,  Hiroyuki Masuda

发明人： Masahisa Ohashi ,  Hiroyuki Masuda

IPC分类号： G21D3/12 ,  G21C7/00 ,  G21C7/36 ,  G21C7/06

CPC分类号： G21C7/00 ,  G21Y2002/201 ,  G21Y2004/40 ,  Y02E30/39

摘要： An operation control method for a nuclear reactor performing a load follow-up operation in accordance with a load variation program, wherein a core reactivity which changes with time in a first cycle of operation is predicted based on the load variation program and data for analyzing dynamic characteristics of the reactor, and a change in a liquid poison concentration in the first cycle of operation is obtained based on the predicted reactivity, and reactor power is controlled in the first cycle of operation by adjusting the liquid poison concentration in accordance with the obtained change. When the liquid poison concentration is adjusted and control rods are manipulated, a reactivity introduced by these operations in the first cycle of operation is obtained, and an adjustment to be made to the liquid poison concentration in the second cycle of operation which is the next cycle of operation following the first cycle of operation is obtained from the reactivity introduced in the first cycle of operation. When the change in reactivity in the second cycle of operation becomes equal to that in the first cycle of operation, and reactor power is controlled in the second cycle of operation by performing the obtained adjustment of the liquid poison concentration.

摘要翻译： 一种用于核反应堆的操作控制方法，其根据负荷变化程序执行负载跟踪操作，其中基于负载变化程序和用于分析动态的数据预测在第一操作周期中随时间改变的铁心反应性 基于预测的反应性，获得反应器的特性和第一操作循环中的液体毒素浓度的变化，并且通过根据获得的变化调整液体毒素浓度，在第一操作循环中控制反应堆功率 。 当调节液体毒素浓度并控制控制棒时，获得在第一操作循环中通过这些操作引入的反应，并且对作为下一循环的第二操作循环中的液体毒物浓度进行调整 在第一操作周期之后的操作是从在第一操作周期中引入的反应获得的。 当第二操作循环中的反应性变化与第一操作循环中的反应性变化相同时，通过进行液体毒素浓度的调整，在第二操作循环中控制反应堆功率。