公开(公告)号：US4272321A

公开(公告)日：1981-06-09

申请号：US911628

申请日：1978-06-01

Applicant: George N. Betancourt ,  William W. Etzel

Inventor： George N. Betancourt ,  William W. Etzel

IPC: G21C7/14 ,  G21C19/10 ,  G21C19/19 ,  G21C7/08

CPC classification number: G21C19/10

Abstract: A method and apparatus for removing, in an essentially continuous operation, the control rods and the upper guide structure from a nuclear reactor vessel during refueling. The apparatus includes a rigid frame which is secured to the upper guide structure after the vessel head is removed. A platform is vertically reciprocable within the frame and is adapted to engage and lift simultaneously all control rod drive shafts to a maximum elevation within the frame. A mechanical interface between the platform and the frame is provided so that continuation of the lifting force on the platform transfers the lift force to the frame whereby the upper guide structure is lifted out of the vessel. Automatically operated stop means are provided to lock the platform and rods in the maximum elevation within the frame in order to prevent accidental dropping of the rods during transfer of the upper guide structure and control rods to a temporary storage area.

Abstract translation: 一种用于在加油期间从基本反应器容器中移除控制棒和上引导结构的方法和装置。 该装置包括刚性框架，其在移除容器头后固定到上导向结构。 平台可在框架内垂直往复运动，并且适于与所有控制杆驱动轴同时接合和提升到框架内的最大高度。 提供了平台和框架之间的机械接口，使得平台上的提升力的继续将提升力传递到框架，由此将上部引导结构提升出容器。 提供自动操作的止动装置以将平台和杆锁定在框架内的最大高度上，以防止在将上引导结构和控制杆转移到临时存储区域期间杆的意外掉落。

公开(公告)号：US4233518A

公开(公告)日：1980-11-11

申请号：US958289

申请日：1978-11-06

Applicant: Sean Auyeung ,  William W. Etzel

Inventor： Sean Auyeung ,  William W. Etzel

IPC: G21C19/07 ,  G21F5/00

CPC classification number: G21C19/07

Abstract: A storage rack for nuclear fuel assemblies is located in the pool and formed of grids, each grid formed of fixedly connected cross members. Four separate grids are used with each of the four grids horizontally restrained by adjacent walls in a manner which restrains forces perpendicular to each wall but permits sliding in response to forces parallel to each wall. Each of the grids are supported at locations between the grids, by members which slidably support the grids. The support members are further slidably supported on a central column.

Abstract translation: 用于核燃料组件的储存架位于池中并由栅格形成，每个栅格由固定连接的横梁构成。 使用四个独立的网格，其中四个网格中的每一个网格以相对于每个壁垂直的约束力的方式被相邻墙壁水平约束，但是允许响应于平行于每个壁的力而滑动。 每个网格由网格之间的位置，可滑动地支撑网格的构件支撑。 支撑构件进一步可滑动地支撑在中心柱上。