Reactor vessel sealing plug

Details Reactor vessel sealing plug Reactor vessel sealing plug

1985-10-22

1986-11-25

Cangialosi, Salvatore

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

For nozzle

376260, G21C 1904, G21C 1920

Patent

active

046248242

ABSTRACT:
An apparatus and method of sealing the cold leg nozzles of a reactor vessel during plant outages for reactor vessel inspection and core support maintenance includes insertion of a sealing plug into each of the cold leg nozzles, by means of an installation tool suspended within the vessel, to permit drainage of downstream piping and inspection and maintenance of associated steam generators and pumps.

REFERENCES:
patent: 3494504 (1970-02-01), Jackson
patent: 3613936 (1971-10-01), Kaiser et al.
patent: 3653410 (1972-04-01), West
patent: 3894327 (1973-10-01), Jabsen
patent: 4262702 (1981-04-01), Streich
patent: 4265011 (1981-05-01), Lebouc
patent: 4312708 (1982-01-01), Leslie
patent: 4393899 (1983-07-01), Tsuji et al.
patent: 4436692 (1984-03-01), Stenabaugh
patent: 4470946 (1984-09-01), Vassalotti et al.
patent: 4548783 (1985-10-01), Dalke et al.

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