Method and apparatus for compacting spent nuclear reactor fuel r

Details Method and apparatus for compacting spent nuclear reactor fuel r Method and apparatus for compacting spent nuclear reactor fuel r

1986-12-12

1988-08-09

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

Fuel component

294906, 29906, G21C 1900

Patent

active

047626640

ABSTRACT:
A method and apparatus for withdrawing spent fuel rods from a nuclear fuel rod assembly into a different nuclear fuel rod container wherein the spent fuel rods have a higher fuel rod density, whereby a greater number of spent fuel rods can be stored in a water-storage pool. The individual rods are moved from a fuel assembly and through a transition funnel by movable grippers at opposite ends of the funnel. One movable gripper reciprocates between gripping and release positions in a gap between the fuel assembly and the transition funnel. A stationary gripper can be located in the gap at the entry side of the funnel to hold the fuel rods while the movable gripper returns from a release position to the gripping position. Both grippers include members which can be pressed into frictional engagement with the spaced apart array of fuel rods. All of the fuel rods are withdrawn concurrently and are merged toward one another into a tighter array within the transition funnel and emerge as a bundle. A movable and a stationary bundle gripper are provided between the funnel and the storage container to advance the bundle of fuel rods into the container.

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