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    • 4. 发明授权
    • Heavy radial neutron reflector for pressurized water reactors
    • 用于压水反应堆的重径向中子反射器
    • US09093183B2
    • 2015-07-28
    • US13721138
    • 2012-12-20
    • WESTINGHOUSE ELECTRIC COMPANY LLC
    • Alexander W. Harkness
    • G21C11/06G21C5/00
    • G21C11/06Y02E30/40
    • A heavy radial neutron reflector for a pressurized water reactor that employs elongated lengths of round bar stock closely packed in either a triangular or rectangular array extending between former plates of a core shroud between the core barrel and the baffle plates which outline the periphery of the reactor core and are formed in axial and circumferential modules. Flow channels are formed in the long gaps between the adjacent round bar stock that communicates cooling water that enters through the core barrel at the top of the shroud and flows down through openings in the former plates to the bottom of the neutron reflector where it exits through a lower baffle orifice to join other cooling water flowing up through the lower core support plate.
    • 用于加压水反应器的重径向中子反射器,其采用细长的圆棒坯料,其密封地填充在三角形或矩形阵列之间,该三角形或矩形阵列在核心筒和挡板之间的芯板护罩的前板之间延伸,其围绕反应器的周边 并且形成在轴向和周向模块中。 流动通道形成在相邻的圆棒坯料之间的长间隙中,其连通通过在护罩顶部的芯筒进入的冷却水,并且通过前板中的开口向下流过中子反射器的底部,在其中它通过 下部挡板孔,以连接通过下芯支撑板向上流动的其它冷却水。
    • 6. 发明申请
    • Passive System for Cooling the Core of a Nuclear Reactor
    • 用于冷却核反应堆核心的被动系统
    • US20160118147A1
    • 2016-04-28
    • US14918665
    • 2015-10-21
    • WESTINGHOUSE ELECTRIC COMPANY LLC
    • Alexander W. Harkness
    • G21C15/18
    • G21C15/18G21C19/07G21D3/06Y02E30/32
    • A system for passively cooling nuclear fuel in a pressurized water reactor during refueling that employs gravity and alignment of valves using battery reserves or fail in a safe position configurations to maintain the water above the reactor core during reactor disassembly and refueling. A large reserve of water is maintained above the elevation of and in fluid communication with the spent fuel pool and is used to remove decay heat from the reactor core after the reaction within the core has been successfully stopped. Decay heat is removed by boiling this large reserve of water, which will enable the plant to maintain a safe shutdown condition without outside support for many days.
    • 一种用于在加油期间在加压水反应堆中被动地冷却核燃料的系统,其使用蓄电池储备的重力和对准阀或在安全位置构型中失效,以在反应堆拆卸和加油期间将水保持在反应堆堆芯上方。 大量储备的水被保持在废燃料池的高度和流体连通之外,并且在核心中的反应已经成功地停止之后被用于去除反应堆堆芯的腐蚀热。 通过煮沸大量储备的水来消除朽烂的热量,这将使得工厂能够在没有外部支持的情况下保持安全关闭条件多天。
    • 10. 发明授权
    • Apparatus and method for removing the upper internals from a nuclear reactor pressurized vessel
    • 从核反应堆加压容器中去除上部内件的装置和方法
    • US09318227B2
    • 2016-04-19
    • US13741737
    • 2013-01-15
    • WESTINGHOUSE ELECTRIC COMPANY LLC
    • Alexander W. Harkness
    • G21C19/10G21C19/02G21C19/20G21C1/32
    • G21C19/02G21C1/086G21C1/32G21C19/10G21C19/20G21C19/207
    • A lifting fixture for removing the upper internals from a nuclear reactor to provide access to the core during a refueling that does not require flooding of a refueling canal. A shield plate is integral to a lifting rig used to remove the upper internals. The shield plate is sized to be supported on the reactor vessel upper flange and to cover the reactor vessel opening with the closure head removed. The shield plate has openings that are in-line with the control rod assembly drive rod travel housings. Control rod assembly drive rods can be accessed through the openings. The lifting rig allows personnel to decouple the drive rods from the rod cluster control assemblies. The lifting fixture enables the decoupled drive rods to be lifted from the core with the upper internals while shielding maintenance personnel without use of flooding the area above the reactor.
    • 一种用于从核反应堆移除上部内部件的提升固定装置,用于在不需要加油渠的淹水的加油中提供对核心的通路。 屏蔽板与用于去除上部内部件的起重机组成一体。 屏蔽板的尺寸被设计成支撑在反应堆容器上凸缘上并且在去除了封闭头的情况下覆盖反应堆容器开口。 屏蔽板具有与控制杆组件驱动杆移动壳体成一直线的开口。 控制杆组件驱动杆可通过开口进入。 起重机允许人员将驱动杆与杆组控制组件分离。 提升固定装置可以使脱钩的驱动杆与上部内部件从芯体提升,同时屏蔽维护人员,而不用淹没反应堆上方的区域。