Process for replacing a worn steam generator of a pressurized wa

Details Process for replacing a worn steam generator of a pressurized wa Process for replacing a worn steam generator of a pressurized wa

1995-04-25

1996-05-21

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

29890031, G21C 2100

Patent

active

055197426

ABSTRACT:
The process comprises separating the worn steam generator from the primary circuit of the reactor by cutting pipes of the primary circuit, extracting the worn steam generator from the reactor and placing in position in the reactor a new replacement steam generator (21) and connecting by welding the lower part (21a) of the replacement steam generator (21) to the pipes (23, 25) of the primary circuit. The process further comprises welding to at least one of the nozzles (24a, 24b) of the lower part (21a) of the replacement steam generator (21) at least one elbow (26, 27) for connection to a pipe (23, 25) of the primary circuit prior to the introduction and the positioning of the replacement steam generator (21) in the reactor.

REFERENCES:
patent: 4847038 (1989-07-01), Martin
patent: 4905630 (1990-03-01), Weber
patent: 4994230 (1991-02-01), Cepkaukas
patent: 5379331 (1995-01-01), Brouttelande
"Steam Generator Replacement at Doel-3", Nuclear News, No. 14, Nov. 1993, pp. 34-36.

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