Anti-abrasive wear spacer grid for nuclear fuel rods in nuclear reactor, has tabs each applying elastic force on canoe-shaped spring and connecting sides of tab connection part such that connection part is projected to preset height

摘要

The grid has an elementary grid mesh surface comprising a canoe-shaped spring (63) with a tab connection part (633) formed on an end portion of a curved surface connection part (632). The spring comprises tabs (634) each having a shape of a plate with a preset length and applying a given elastic force on the spring. The tab connects two sides of the tab connection part with the mesh surface such that the tab connection part is projected to a preset height from the mesh surface.