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1. 发明授权

US5377239A BWR control rod handling tooling & method 失效
标题翻译： BWR控制杆处理工具及方法
公开(公告)号：US5377239A
公开(公告)日：1994-12-27
申请号：US108463
申请日：1993-08-18
申请人： Fred C. Nopwaskey , Robert W. Whitling , Balasubramanian S. Kowdley , Frank Ortega
发明人： Fred C. Nopwaskey , Robert W. Whitling , Balasubramanian S. Kowdley , Frank Ortega
IPC分类号： G21C19/19 , G21C19/06 , G21C19/10
CPC分类号： G21C19/10 , G21C19/06 , G21C19/207 , G21Y2002/302 , G21Y2002/40 , G21Y2002/501 , G21Y2004/40 , G21Y2004/50 , G21Y2004/501
摘要： A tool set and a method of using those tools in combination is disclosed that are especially well adapted to the function of rearranging and/or replacing the control rods and fuel supports in a boiling water reactor. The tool set includes a grapple that is capable of simultaneously picking up both a control rod and its associated fuel support. A separate unlatching tool is provided for pulling the control rod's release handle in order to decouple the control rod from a control rod drive. A storage rack that may be mounted in the reactor pressure vessel is provided for storing a fuel support and a pair of control rods when the positions of selected control rods are being shifted about the reactor core area. In the method aspect of the invention, the unlatching tool is used to pull the control rod's release handle. Thereafter, the grapple lifts the control rod and its associated fuel support as a unit. When rearranging the positions of the control rods, a first control rod and its associated fuel support are placed the storage rack. Then a second control rod/fuel support assembly is removed in a similar manner and the second control rod is placed in the storage rack. Thereafter, the first control rod may be removed from the storage rack and placed in the position formally occupied by the second control rod, with the same fuel support that was removed from the second location.
摘要翻译：公开了一种工具组和组合使用这些工具的方法，其特别适用于在沸水反应器中重新布置和/或更换控制棒和燃料支架的功能。该工具组包括能够同时拾起控制杆及其相关联的燃料支架的抓斗。提供单独的解锁工具来拉动控制杆的释放手柄，以便将控制杆与控制杆驱动器分离。可以安装在反应堆压力容器中的存储架设置成用于在所选择的控制棒的位置围绕反应堆堆芯区域移动时存储燃料支架和一对控制杆。在本发明的方法方面，解锁工具用于拉动控制杆的释放手柄。此后，抓斗将控制棒及其相关联的燃料支架提升为一个单元。当重新布置控制杆的位置时，将第一控制杆及其相关的燃料支架放置在存放架上。然后以类似的方式移除第二控制棒/燃料支撑组件，并且将第二控制杆放置在存储架中。此后，第一控制杆可以从存储架移除并且被放置在由第二控制杆正式占据的位置中，具有从第二位置移除的相同的燃料支撑。

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