SMALL MODULAR REACTOR FUEL ASSEMBLY
    1.
    发明公开
    SMALL MODULAR REACTOR FUEL ASSEMBLY 有权
    小型模块化反应堆燃料组件

    公开(公告)号:EP2839485A1

    公开(公告)日:2015-02-25

    申请号:EP13778166.2

    申请日:2013-04-17

    IPC分类号: G21C21/00 G21D5/04

    摘要: A pressurized water reactor (PWR) comprises a pressure vessel containing primary coolant water. A nuclear reactor core is disposed in the pressure vessel and includes a plurality of fuel assemblies. Each fuel assembly includes a plurality of fuel rods containing a fissile material. A control system includes a plurality of control rod assemblies (CRA's). Each CRA is guided by a corresponding CRA guide structure. A support element is disposed above the CRA guide structures and supports the CRA guide structures. The pressure vessel may be cylindrical, and the support element may comprise a support plate having a circular periphery supported by the cylindrical pressure vessel. The CRA guide structures suitably hang downward from the support plate. The lower end of each CRA guide structure may include alignment features that engage corresponding alignment features of the upper end of the corresponding fuel assembly.

    摘要翻译: 压水反应堆(PWR)包括容纳一次冷却水的压力容器。 核反应堆堆芯设置在压力容器中并包括多个燃料组件。 每个燃料组件包括含有易裂变材料的多个燃料棒。 控制系统包括多个控制杆组件(CRA's)。 每个CRA由相应的CRA指导结构指导。 支撑元件设置在CRA引导结构上方并且支撑CRA引导结构。 压力容器可以是圆柱形的,并且支撑元件可以包括具有由圆柱形压力容器支撑的圆形周边的支撑板。 CRA引导结构适当地从支撑板向下悬挂。 每个CRA引导结构的下端可以包括与相应燃料组件的上端的对应对齐特征相接合的对齐特征。