| 摘要 |
PROBLEM TO BE SOLVED: To provide a clamp system for imparting structural unity to a sparger T box of a reactor core spray system. SOLUTION: A reactor core spray sparger T box installing assembly 50 of a nuclear reactor pressure vessel 10 includes a precipitation pipe coupling 52, and a sparger T box clamp 54. The precipitation pipe coupling includes a cylindrical outside housing 56, a central part 66, and a plurality of blades 70 extending to the central part from the outside housing 56. The outside housing is joined to precipitation pipes 22 and 24, and includes an extending flange 62. A tightening bolt 74 threadedly engages with a shaft directional hole 68 of the central part, and joins the precipitation pipe coupling to the sparger T box clamp. The sparger T box clamp includes an anchor 76 having a tightening bolt opening part 78, and a plurality of leg parts 80 extending from an anchor surface 82.
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