Antivibration bar installation apparatus.

摘要

Mechanical attachment apparatus assists in attaching antivibration bars under water without any welds to a retaining ring at the location of the bent or curbed portion of the flow tube bundle of a steam generator. The apparatus can be used with passive or expandable antivibra­tion bars. A cylindrical member having a relatively long hook member attached thereto is connected to each end of the antivibration bars. The hook member accommodates wide variations in positioning when attaching the antivibration bars to a retaining ring located at and conforming to the periphery of the tube bundle. Latch apparatus secures the retaining ring within the hook member. The attachment apparatus and the installation procedure are adapted to be performed under water using long-handled tools.