Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within... – Fuel component
Patent
1985-06-14
1987-04-21
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
Fuel component
376272, 29723, G21C 1932
Patent
active
046595368
ABSTRACT:
A system for consolidating spent fuel rods from spent fuel assemblies includes an operator and control station, a fuel rod transfer tool with a gripper assembly, indexing devices, and a fuel consolidation station. The fuel rod transfer tool and gripper assembly grips a fuel rod and withdraws it from a fuel bundle until it is clear of the bundle. The tool, with the fuel rod drawn up inside it, is moved to another location where it is desired to place the fuel rod; the tool inserts the rod, and the gripper releases it. The fuel consolidation station has a frame that holds two fuel assemblies and a consolidation container. The bottom of the frame rests on the floor of the fuel pool. The top of the frame supports the indexing devices. An indexing device is provided for each of the fuel assemblies and the consolidation container. An indexing device for a fuel asembly is capable of guiding the gripper assembly to a position above a preselected rod in the associated fuel assembly, while the indexing device for the consolidation container is capable of guiding the gripper assembly, which may be holding a rod, to a position above a preselected location in the consolidation container. Preferably, each indexing device has an indexing head that is slidably mounted on a pair of rails, and these pairs of rails are slidably mounted on a further pair of rails. The further pair of rails runs transversely to the former pairs of rails, thus permitting each indexing head to be moved in two perpendicular directions.
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Proto-Power Corporation
Razzano Pasquale A.
Walsh Donald P.
Wasil Dan
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