Manipulator for inspection and possible repair of the tubes of h

Details Manipulator for inspection and possible repair of the tubes of h Manipulator for inspection and possible repair of the tubes of h

1978-07-21

1980-11-04

Davis, Albert W.

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

Remotely controlled inspection means

165 76, 122364, 138 97, 73 498, 414 4, F28F 1100

Patent

active

042314194

ABSTRACT:
Manipulator for inspecting and, if required, repairing the tubes of heat exchangers, especially for nuclear reactors, in which a tube bundle set in a tube sheet lead into a steam generator chamber and a manipulator is brought in through a lead-in nozzle. An inspection arm can be inserted and removed through the lead-in nozzle and the nozzle can be closed off tight by a blind flange. The inspection arm comprises a guide tube supported in the lead-in nozzle, and a swivel arm supported at the end of the guide tube so that it can rotate in a plane parallel to the tube sheet. The swivel arm carries at its outer end an extendable and retractable mouthpiece carrier with a mouthpiece which can be aligned onto the tube openings. The outer contour of the swivel arm and the mouthpiece carrier in the stretched-out transport position is not greater than the inner contour of the lead-in nozzle.

REFERENCES:
patent: 3934731 (1976-01-01), Muller et al.
patent: 3954136 (1976-05-01), Gugel
patent: 3964293 (1976-06-01), Faure et al.
patent: 4004698 (1977-01-01), Gebelin
patent: 4148403 (1979-04-01), Riffe

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