Rod taking device and rod replacing method

• Main Authors: SUN XIWANG, LIU PING, CHEN PENGYIN, QIAO SUKAI, JIANG DONG, TAN ZIWEN, LI LIANGLIANG, HUANG JIAWU
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• Subjects: NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS

The invention discloses a rod taking device and a rod replacing method. The rod taking device comprises a box body, a power unit arranged in the box body, an execution unit and a control unit in communication connection with the power unit. The execution unit comprises a core rod, a clamping jaw, a locking pipe and an outer sleeve, and the core rod, the clamping jaw and the locking pipe are arranged in the outer sleeve and can move in the axial direction of the outer sleeve; the core rod and the clamping jaw are sleeved with the locking pipe, the locking pipe can move in the axial direction of the core rod, and the two ends of the core rod are connected with the power unit and the clamping jaw respectively; a pawl used for grabbing a fuel rod to be replaced is arranged at the end, away from the core rod, of the clamping jaw. By means of the rod taking device, the fuel rod to be replaced can be safely taken out from a new fuel assembly. 本发明公开了取棒装置及换棒方法，包括箱体、设于箱体内的动力单元、执行单元，以及与动力单元通讯连接的控制单元；执行单元包括芯杆、夹爪、锁紧管和外套管，