Upper internal equipment of a pressurized water nuclear reactor

Details Upper internal equipment of a pressurized water nuclear reactor Upper internal equipment of a pressurized water nuclear reactor

1982-11-16

1986-08-19

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Reactor structures

With particular control rod guide structure

376346, G21C 700

Patent

active

046068813

ABSTRACT:
Upper internal equipment of a pressurized water nuclear reactor, comprising guide tubes containing guide plates and sleeves adapted to two different types of charge of the reactor core, one for obtaining a thermal neutron spectrum and the other for obtaining an epithermal spectrum. The plates (20) and the sleeves (33, 34) have, for each of the guide tubes, a first set of perforations (31, 36) and a second set of perforations (30,35) for guiding the control rods in either case. The invention applies to a pressurized water reactor operating either as a conventional reactor or as an undermoderated reactor.

REFERENCES:
patent: 3425904 (1969-02-01), Bogaardt
patent: 3734825 (1973-05-01), Schabert et al.
patent: 3816245 (1974-06-01), Bevilaequa
patent: 3859165 (1975-01-01), Radkowsky et al.
patent: 3930938 (1976-01-01), Berglund et al.
patent: 3940311 (1976-02-01), Frisch et al.
patent: 4092216 (1978-05-01), Aubert
patent: 4173513 (1979-11-01), Obermeyer et al.

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