公开(公告)号：US06473481B1

公开(公告)日：2002-10-29

申请号：US09621417

申请日：2000-07-21

申请人： Tsutomu Ishii ,  Tsumoru Miyahara ,  Hideo Yonemura ,  Kiyoshi Izumi

发明人： Tsutomu Ishii ,  Tsumoru Miyahara ,  Hideo Yonemura ,  Kiyoshi Izumi

IPC分类号： B21C1942

CPC分类号： G21C7/16 ,  G21Y2002/207 ,  G21Y2004/50 ,  Y02E30/39

摘要： The present invention is a control rod guide tube cleaning apparatus in a nuclear reactor which includes a rod member, one end side portion of which has a thickness such that the end side portion can pass through the inside of a connecting portion between a housing of a control rod drive mechanism and a control rod guide tube, a nozzle for sucking water, mounted on the rod member on the one end side so that the nozzle can go in and out of the rod member, a means for rotating the rod member in a horizontal direction, and a water passage for leading water sucked in the nozzle to an outside of the housing along the rod member. The rod member is inserted into the control rod guide tube through the inside of the housing. Then, the nozzle is rotated downward so that a suction port of the nozzle faces the bottom inside portion of the control rod guide tube for the suction of dust and debris. The nozzle is rotated in the horizontal direction by rotating the rod member in the horizontal direction.

摘要翻译： 本发明是一种核反应堆中的控制棒引导管清洗装置，其包括杆构件，杆构件的一端侧部分具有使得端侧部分能够穿过其中的连接部分的内部的厚度 控制杆驱动机构和控制杆引导管，用于吸水的喷嘴，一端侧安装在杆构件上，使得喷嘴可以进出杆构件;用于将杆构件旋转的装置 水平方向，以及用于沿着杆构件将吸入喷嘴的引导水引导到壳体的外部的水通道。 杆构件通过壳体的内部插入控制杆导管中。 然后，喷嘴向下旋转，使得喷嘴的吸入口面对控制棒导管的底部内部，用于吸入灰尘和碎屑。 喷嘴通过沿着水平方向旋转杆构件而在水平方向上旋转。