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FUEL ROD SUPPORT INSERT FOR A NUCLEAR FUEL ASSEMBLY SPACER GRID, SPACER GRID AND NUCLEAR FUEL ASSEMBLY
FUEL ROD SUPPORT INSERT FOR A NUCLEAR FUEL ASSEMBLY SPACER GRID, SPACER GRID AND NUCLEAR FUEL ASSEMBLY
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机译:核燃料组件隔栅,隔栅和核燃料组件的燃料棒支撑插件
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摘要
The support insert (22) is for a nuclear fuel assembly spacer grid comprising interlaced straps (18) defining a lattice of cells (20) for receiving fuel rods (4), the insert (22) being adapted to be secured to the straps (18) for extending in at least one cell (20). The insert (22) extends along an axis (B) intended to be parallel to that of a cell (20) and comprises two axially spaced end portions (26) for connecting the insert (22) to the straps (18) and at least one elongated blade-like spring (28) extending axially between the end portions (26) for supporting a fuel rod (4). The spring (28) has a non-rectilinear cross-section in each plane perpendicular to the insert axis (B).
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