Jet pump measurement pipe repair method

摘要

In a jet pump measurement pipe repair method according to the present embodiment, a breakage part of a measurement pipe(11) horizontally fixed to a lower part of a jet pump provided in reactor water in a reactor pressure vessel is repaired. The method has: a cutting/removing step(S1) of cutting and removing the measurement pipe(11) including the breakage part; a retaining step(S2) of retaining a connection pipe(30,40,45) for connecting the remaining measurement pipe on the jet pump by means of a clamp; and a connecting step(S3) of connecting ends of the remaining measurement pipe by means of the connection pipe(30,40,45).