FUEL ASSEMBLY OF PRESSURISED-TUBE REACTOR Russian patent published in 2008 - IPC G21C3/00 

FIELD: nuclear engineering.

SUBSTANCE: fuel assembly contains tailpiece, the casing of which is made in the form of shell and has cylindrical part and entry conical part, in which openings are provided for coolant passage, one of which is central. Assembly is equipped with bushing installed in central opening and annular anti-debris filter, which is installed between bushing and annular passage arranged in the casing above the openings for coolant passage. External diameter of filter is selected less than internal diameter of cylindrical part, and filter is equipped with the possibility of displacement along the bushing. Filter is equipped with facility for its fixation in relation to bushing in two positions, distance between which along bushing axis exceeds depth of specified filter installation in annular passage.

EFFECT: reduces possibility of debris particles ingress inside the fuel assembly and vibration effect of coolant flow at fuel elements.

3 cl, 2 dwg