Support arrangement for core modules of nuclear reactors
    1.
    发明授权
    Support arrangement for core modules of nuclear reactors 失效
    支持核反应堆核心模块的安排

    公开(公告)号:US4643868A

    公开(公告)日:1987-02-17

    申请号:US548279

    申请日:1983-11-03

    CPC classification number: G21C19/02 G21C5/06 Y02E30/40 Y10S294/906

    Abstract: A support arrangement is provided for the core modules of a nuclear reactor which provides support access through the control drive mechanisms of the reactor. This arrangement provides axial support of individual reactor core modules from the pressure vessel head in a manner which permits attachment and detachment of the modules from the head to be accomplished through the control drive mechanisms after their leadscrews have been removed. The arrangement includes a module support nut which is suspended from the pressure vessel head and screw threaded to the shroud housing for the module. A spline lock prevents loosening of the screw connection. An installation tool assembly, including a cell lifting and preloading tool and a torquing tool, fits through the control drive mechanism and provides lifting of the shroud housing while disconnecting the spline lock, as well as application of torque to the module support nut.

    Abstract translation: 为核反应堆的核心模块提供支持装置,其提供通过反应堆的控制驱动机构的支撑通路。 这种布置提供了单独的反应堆堆芯模块从压力容器头部的轴向支撑,其方式是允许模块从头部的附接和拆卸,以在它们的丝杠被移除之后通过控制驱动机构实现。 该装置包括模块支撑螺母,该模块支撑螺母从压力容器头部悬挂并且螺纹连接到模块的护罩壳体。 花键锁定可防止螺丝连接松动。 包括电池提升和预加载工具和扭力工具的安装工具组件通过控制驱动机构安装,并且在断开花键锁定时提供护罩壳体以及向模块支撑螺母施加扭矩。

    Multi-function magnetic jack control drive mechanism
    2.
    发明授权
    Multi-function magnetic jack control drive mechanism 失效
    多功能磁力千斤顶控制驱动机构

    公开(公告)号:US4597934A

    公开(公告)日:1986-07-01

    申请号:US539370

    申请日:1983-10-06

    Abstract: A multi-function magnetic jack control drive mechanism for controlling a nuclear reactor is provided. The mechanism includes an elongate pressure housing in which a plurality of closely spaced drive rods are located. Each drive rod is connected to a rod which is insertable in the reactor core. An electromechanical stationary latch device is provided which is actuatable to hold each drive rod stationary with respect to the pressure housing. An electromechanical movable latch device is also provided for each one of the drive rods. Each movable latch device is provided with a base and is actuatable to hold a respective drive rod stationary with respect to the base. An electromechanical lift device is further provided for each base which is actuatable for moving a respective base longitudinally along the pressure housing. In this manner, one or more drive rods can be moved in the pressure housing by sequentially and repetitively operating the electromechanical devices. Preferably, each latch device includes a pair of opposed latches which grip teeth located on the respective drive rod. Two, three, or four drive rods can be located symmetrically about the longitudinal axis of the pressure housing.

    Abstract translation: 提供了一种用于控制核反应堆的多功能磁力千斤顶控制驱动机构。 机构包括细长的压力壳体,其中定位有多个紧密间隔的驱动杆。 每个驱动杆连接到可插入反应堆芯中的杆。 提供了一种机电固定闩锁装置,其可致动以将每个驱动杆相对于压力壳体固定。 还为每个驱动杆提供机电可移动锁定装置。 每个可移动的闩锁装置设置有基座并且可致动以将相应的驱动杆相对于基座固定。 还设置有用于每个基座的机电提升装置,其可致动以沿着压力壳体纵向移动相应的基部。 以这种方式,一个或多个驱动杆可以通过顺序地和重复地操作机电装置而在压力壳体中移动。 优选地,每个闩锁装置包括一对相对的闩锁,其夹持位于相应驱动杆上的齿。 两个,三个或四个驱动杆可以围绕压力壳体的纵向轴线对称地定位。

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