Device for centering a servicing tool in a steam generator tube

Details Device for centering a servicing tool in a steam generator tube Device for centering a servicing tool in a steam generator tube

1990-04-03

1992-07-28

Hunt, Brooks H.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

G21C 1900

Patent

active

051339250

ABSTRACT:
The centering device comprises a centering plate (23) mounted on a carrier member (21) for rotation about an axis parallel to the axis of the steam generator tubes and carrying two radial expansion fastening grippers (39), and a drive (22, 27, 28) for orientation of the plate (23) about its axis. The fastening grippers (39) are disposed on the plate in relative positions corresponding to openings provided in the tube plate (18) for the passage of the tubes (13).

REFERENCES:
patent: 4406856 (1983-09-01), Wilkins et al.
patent: 4656734 (1987-04-01), Styskar et al.
patent: 4728217 (1988-03-01), Fink

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