Head assembly

Details Head assembly Head assembly

1996-07-16

1998-04-21

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Auxiliary heat removal structure

376287, 376263, G21C 1100, G21C 1500

Patent

active

057426520

ABSTRACT:
An integrated head assembly for a nuclear reactor pressure vessel includes a closure head with CRDM assemblies extending upwardly from the head. A CRDM seismic support disposed above the closure head provides lateral support for the CRDM assemblies. The seismic support also has air flow holes which communicate with the interior of a shroud enclosing the CRDMs and extending upwardly from the closure head to the seismic support. The shroud has an air port in direct air flow communication with the surrounding atmosphere so that the closure head, shroud and seismic support define an air flow passageway directly communicating with the surrounding atmosphere via the air port and without the extensive ductwork and, therefore, with substantially less power.

REFERENCES:
patent: 4302290 (1981-11-01), Mazur et al.
patent: 4678623 (1987-07-01), Malandra et al.
patent: 4828789 (1989-05-01), Hankinson et al.
patent: 4830814 (1989-05-01), Altman
patent: 5225150 (1993-07-01), Malandra et al.

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