SYSTEM FOR HANDLING FUEL ELEMENTS

摘要

A system for transferring fuel elements between an upper pool and a lower pool of a nuclear plant has a conveyor tube having an upper end at the upper pool and a lower end at the lower pool. A transport basket movable internally along the tube and into which at least one of the fuel elements can be placed can travel through the conveyor tube. A blocking element at one end of the tube that can fully close the conveyor tube at the respective end. A cable hoist has a traction cable guided through the conveyor tube for raising and lowering the transport basket through the conveyor tube. An intermediate partially closing blocking element offset from the fully closing blocking element in the tube is formed with a cable passage through which the traction cable can pass in the closed position.

主权项

1. A transfer system for transfer of fuel elements between an upper pool and a lower pool of a nuclear plant, the liquid level of the upper pool lying above the liquid level of the lower pool, the system comprising:
a conveyor tube having an upper end at the upper pool and a lower end at the lower pool and extending between the upper and lower ends at an acute angle to the vertical; a transport basket movable internally along the tube and into which at least one of the fuel elements can be placed for transfer through the conveyor tube; a fully closing blocking element at one end of the tube that can fully close the conveyor tube at the respective end; a cable hoist having a traction cable guided through the conveyor tube for raising and lowering the transport basket through the conveyor tube; and an intermediate partially closing blocking element offset from the fully closing blocking element in the tube, movable between an open position allowing the basket to pass and a closed position blocking such passage, and formed with a cable passage through which the traction cable can pass in the closed position.