Fuel re-location chamber

Purpose: To decrease the falling danger of fuel transport casks and enable effective utilization of spaces by communicating a fuel transport cask station and a fuel storage pool with pool plugs for fuel transport cask station of a movable partition wall type. Constitution: A channel between a fuel storage pool and a fuel transport cask station in a nuclear reactor building is communicated by way of a pool plug for fuel transport cask station of a movable partition wall type, and a drain pipeway having a cleaning spray device for fuel transport casks and a drain valve and a water pouring pipeway are provided. In this structure, the pool plug for fuel transport cask can be mounted where spent fuels are provisionally placed in the fuel transport cask station by a crane and cleaned with the cleaning spray device, and the pool plug can be detached where the spent fuels are loaded in the fuel transport casks by way of fuel exchange vehicles, whereby the cycles for lifting up and down the fuel transport casks can be decreased to attain the desired object. (Horiuchi, T.)