1974-01-02
1977-01-11
Feinberg, Samuel
G21C 1920
Patent
active
040025292
ABSTRACT:
A fuel handling machine for a liquid metal cooled nuclear reactor in which a retractable handling tube and gripper are lowered into the reactor to withdraw a spent fuel assembly into the handling tube. The handling tube containing the fuel assembly immersed in liquid sodium is then withdrawn completely from the reactor into the outer barrel of the handling machine. The machine is then used to transport the spent fuel assembly directly to a remotely located decay tank. The fuel handling machine includes a decay heat removal system which continuously removes heat from the interior of the handling tube and which is capable of operating at its full cooling capacity at all times. The handling tube is supported in the machine from an articulated joint which enables it to readily align itself with the correct position in the core. An emergency sodium supply is carried directly by the machine to provide make up in the event of a loss of sodium from the handling tube during transport to the decay tank.
REFERENCES:
patent: 3629062 (1971-12-01), Muenchow
Andrea Christo
Dupen Clive Frederick George
Noyes Richard Croissant
Combustion Engineering Inc.
Feinberg Samuel
Goettel, Jr. Frederick A.
Kochey Jr. Edward L.
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