BOTTOM NOZZLE OF DEBRIS FILTER OF NUCLEAR FUEL ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To provide a bottom nozzle of a debris filter of a fuel assembly improved for removing debris. SOLUTION: The bottom nozzle of the debris filter of the nuclear fuel assembly has a supporting skirt and a top plate. In a top nozzle plate, a plurality of flow holes penetrating the plate is defined. A hollow hole in the axial direction passing through the flow holes is formed into a Venturi tube. Preferably, the Venturi tube is provided with a double-chamfered introduction port. COPYRIGHT: (C)2005,JPO&NCIPI