Nuclear reactor fuel transfer system

Details Nuclear reactor fuel transfer system Nuclear reactor fuel transfer system

1976-02-23

1978-01-17

Bentley, Stephen C.

176 30, 214 18N, G21C 1922, G21C 1920, B66C 1708

Patent

active

040690997

ABSTRACT:
A system for transferring fuel assemblies between a nuclear reactor core and a fuel transfer area while the fuel assemblies remain completely submerged in a continuous body of coolant. The system comprises an in-vessel transfer machine and a valve capable of isolating the reactor vessel from the remainder of the fuel transfer system. The in-vessel transfer machine consists of a positioning mechanism and a lifting mechanism. The positioning mechanism is composed of a plurality of rotatable plugs located on the reactor vessel head. The lifting mechanism which is capable of lifting or lowering a chosen fuel assembly is disposed on a tilted plug at an angle relative to the tilted plug's plane of rotation. The rotatable plugs together with the lifting mechanism are capable of transferring a fuel assembly between the fuel transfer area and any core location or between any two core locations while the fuel assembly remains completely submerged in a continuous body of coolant.

REFERENCES:
patent: B373344 (1976-02-01), Katz
patent: 3293136 (1966-12-01), Harris
patent: 3354040 (1967-11-01), Frame
patent: 3862001 (1975-01-01), Marmonier
patent: 3952885 (1976-04-01), Schabert

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