Nuclear reactor with control rods

Details Nuclear reactor with control rods Nuclear reactor with control rods

1977-07-07

1979-11-06

Behrend, Harvey E.

176 36R, G21C 1500

Patent

active

041735137

ABSTRACT:
A liquid-cooled nuclear reactor including fuel assemblies mounted within a reactor vessel having linearly movable control rods passing through control rod guide tubes into respective aligned fuel assemblies. Reactor coolant circulates through the assemblies, guide tubes and other vessel internals structures located above the assemblies and is discharged through an outlet nozzle positioned above the elevation of primary flow openings in the guide tube walls. The guide tube includes internal horizontal supports and a length limited continuous control rod guide which, in conjunction with the flow openings, alleviate detrimental coolant cross flows and frictional restraints imposed upon the control rods.

REFERENCES:
patent: 3481832 (1969-12-01), Rickert
patent: 3595748 (1971-07-01), Frisch et al.
patent: 3607629 (1971-09-01), Frisch et al.
patent: 3940311 (1976-02-01), Frisch et al.
patent: 4064002 (1977-12-01), Desmarchais et al.

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