FIELD: power engineering.
SUBSTANCE: invention relates to atomic power engineering, namely, to nuclear fuel assemblies (NFA) structural elements of VVER type nuclear reactors. Absorbing grid (AG) intended for local suppression of a neutrons burst is made in the form of a thick perforated plate produced by means of drilling and a small share of milling in six corners and along the outline, with the thickness equal to that of the known AG and equal in square in the plan.
EFFECT: technical result is simplification of the design, reduced volume of welding to the minimum one (only welding with angles remains), reduced hydraulic resistance due to reduced wetted perimeter of the AG and reduced labour intensity while maintaining its absorption capacity.
3 cl, 2 dwg
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