| 摘要 |
PROBLEM TO BE SOLVED: To provide a furnace bottom part inspection repair device, equipped with a small-sized arm mechanism reachable up to the back of a structure, positioned near the installation place of the device. SOLUTION: This furnace bottom part inspection repair device has a body part 1, fitted around a stub tube 22 erected on the furnace bottom part of a nuclear reactor 23; a vertical position determination part 2 provided inside the body part 1 and placed and positioned on the upper surface of the stub tube 22; a motor 9 for body-turning for making the body part 1 turn; a lifting mechanism 4, provided to the upper part of the body part 1 for making a lifting stand 4a lift; and an inspection repair part, provided to the lifting stand 4 for inspecting or repairing the furnace bottom part. COPYRIGHT: (C)2007,JPO&INPIT
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