| 摘要 |
PURPOSE: To prevent rotation of a spring assembly by inserting an base end part of the spring assembly in the slot of a clamp black at the corner of one diagonal line of a rectangular upper part nozzle of a nuclear fuel assembly, then fixing with a screw for welding. CONSTITUTION: On the corner of one diagonal line of a rectangular upper part nozzle 22 of a nuclear fuel assembly, clamp blocks 72 are formed. The block 72 is provided with a recessed clamp slot 76 and bore 86, with a spring assembly 48 inserted in the slot 76. A screw 100 is inserted in the bore 86, and after the screw 100 is screwed in a hole of the spring assembly 48 and a thread of a flange 44, the screw 100 and a bore 102 are fixed together by welding (102). Thus, a rotation of the spring assembly 48 is prevented, and a handling of a member of care is not obstructed. |
