FIELD: power engineering.
SUBSTANCE: invention relates to a fuel assembly (FA) with concentric ring fuel elements. In the available device of fixation of concentric ring fuel elements in a FA, comprising ring fuel elements and a spacing element between them, concentric ring fuel elements are equipped with external ribs. The spacing element is made in the form of a spacing grid, made of support circular bases in the amount equal to the number of circular fuel elements connected by radial partitions. At the same time on one end of the spacing grid, on each base in direction of fuel elements there are at least three fingers installed. In fingers of the outer base there are circular bores for additional fixation of fuel elements by resetting of the fuel element rib into the bore. Ring fuel elements are installed between fingers with press fit.
EFFECT: simplified design of a device for fixation of ring fuel elements.
3 cl, 3 dwg
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