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    • 48. 发明申请
    • HEAD ASSEMBLY
    • 总部组织
    • WO9953502A2
    • 1999-10-21
    • PCT/US9907119
    • 1999-03-31
    • CBS CORP
    • HARKNESS ALEXANDER WHANKINSON MICHAEL F
    • G21C1/00G21C1/08G21C7/12G21C13/00G21C13/073G21C
    • G21C7/12G21C13/073G21Y2002/201G21Y2002/202G21Y2002/304G21Y2002/402G21Y2002/501G21Y2004/30Y02E30/39
    • An integrated head assembly for a nuclear reactor pressure vessel includes a closure head with CRDM assemblies extensing upwardly from the head. A CRDM seismic support disposed above the closure head provides lateral support for the CRDM assemblies. The seismic support also has air flow holes which communicate with the interior of a shroud enclosing the CRDMs and extending upwardly from the closure head to the seismic support. The shroud has an air port in direct air flow communication with the surrounding atmosphere so that the closure head, shroud and seismic support define an air flow passageway directly communicating with the surrounding atmosphere via the air port and without the extensive ductwork and, therefore, with substantially less power. A missile shield disposed above and in air flow communication with the seismic support provides a lightweight, compact physical barrier for removing energy from dislocated objects such as CRDM drive rods.
    • 用于核反应堆压力容器的集成头组件包括具有从头部向上延伸的CRDM组件的封闭头。 设置在封闭头上方的CRDM地震支架为CRDM组件提供横向支撑。 地震支架还具有气流孔,其与封闭CRDM的护罩的内部连通,并从闭合头向上延伸到地震支座。 护罩具有与周围大气直接气流连通的空气口,使得封闭头,护罩和地震支架限定出气流通道,其经由空气口直接与周围大气连通,并且没有广泛的管道系统,因此与 大大减少功率。 设置在地震支撑上方并与空气流连通的导弹盾构提供了轻量级的紧凑的物理屏障,用于从诸如CRDM驱动杆的脱位物体移除能量。