-
公开(公告)号：US5600685A
公开(公告)日：1997-02-04
申请号：US427543
申请日：1995-04-24
IPC分类号： G21C19/105 , G21C19/00
CPC分类号： G21C19/105 , G21Y2002/201 , G21Y2002/304 , G21Y2002/402 , G21Y2004/305 , G21Y2004/401 , G21Y2004/501
摘要： An unlatching tool which can be used to uncouple and grapple standard handle and extended handle control rods from their associated control rod drives. The unlatching tool is lowered onto the handle of a control rod residing in the reactor core. Due to differences in the shapes of the handles of the standard handle and extended handle control rods, the tool is able to sense the type of control rod present and, through the use of a pneumatically actuated cylinder, position the unlatching mechanism at the appropriate elevation. In particular, a four-way valve, that is actuated by contact with the top corner of the handle of the extended handle control rod and is not contacted by the handle of the standard handle control rod, is used to differentiate between control rod types. The unlatching mechanism is positioned relative to the unlocking handle on the control rod using a pneumatic cylinder activated by the four-way valve. The cylinder has a stroke length equal to the difference in length between the standard handle and extended handle control rods.
摘要翻译： 一种解锁工具，可用于从相关的控制杆驱动器上拆下并抓住标准把手和扩展的手柄控制杆。 解锁工具下降到位于反应堆芯中的控制棒的手柄上。 由于标准手柄和扩展的手柄控制杆的把手形状不同，工具能够感测到存在的控制杆的类型，并且通过使用气动缸，将解锁机构定位在适当的高度 。 特别地，通过与伸出的手柄控制杆的手柄的顶角接触而不与标准手柄控制杆的手柄接触的四通阀用于区分控制杆类型。 使用由四通阀启动的气动缸，解锁机构相对于控制杆上的解锁把手定位。 气缸的行程长度等于标准把手和扩展手柄控制杆之间的长度差。
-
公开(公告)号：US5379330A
公开(公告)日：1995-01-03
申请号：US135779
申请日：1993-10-12
CPC分类号： G21C19/26 , G21C19/207 , B01D2201/24 , B01D2201/4084 , G21Y2002/402 , G21Y2004/501
摘要： An improved tool for removing the highly contaminated inner filter from a control rod drive during a maintenance operation. The tool may also be used to install the inner filter by pushing the inner filter on and locking the spring clip onto flats of the center lug of the control rod drive stop piston. The tool has a collet with flexible fingers which are inserted inside the inner filter while flexed radially inward. After the collet is inserted, a retractable cam with a conical bearing surface is retracted to a position whereat it urges the collet fingers radially outward to clamp the collet onto the inner filter. The locked filter must be rotated before removal. With the inner filter coupled to the collet, the tool is then pulled out to remove the inner filter from the control rod drive.
摘要翻译： 一种改进的工具，用于在维护操作期间从控制杆驱动器中去除高度污染的内部过滤器。 该工具还可以用于通过推动内部过滤器并将弹簧夹锁定到控制棒驱动停止活塞的中心凸耳的平面上来安装内部过滤器。 该工具具有柔性指状物的夹头，其在径向向内弯曲的同时插入内部过滤器内部。 在插入夹头之后，具有锥形支承表面的可伸缩凸轮缩回到其中径向向外推动夹头的位置，以将夹头夹紧到内部过滤器上。 锁定的过滤器必须在拆卸前旋转。 将内部过滤器联接到夹头上，然后将工具拉出以从控制杆驱动器中移除内部过滤器。
-
搜索结果
2 条记录 (耗时 0.015 秒)
