公开(公告)号：US08335293B1

公开(公告)日：2012-12-18

申请号：US12434985

申请日：2009-05-04

申请人： Kyong-Bo Eom ,  Kyu-Tae Kim ,  Jung-Min Suh ,  Nam-Gyu Park ,  Joon-Kyoo Park ,  Jin-Sun Kim ,  Dong-Geun Ha ,  Kyoung-Joo Kim ,  Il-Kyu Kim ,  Seong-Ki Lee ,  Jin-Seok Lee ,  Kang-Hoon Kim ,  Sung-Kew Park ,  Kyeong-Lak Jeon

发明人： Kyong-Bo Eom ,  Kyu-Tae Kim ,  Jung-Min Suh ,  Nam-Gyu Park ,  Joon-Kyoo Park ,  Jin-Sun Kim ,  Dong-Geun Ha ,  Kyoung-Joo Kim ,  Il-Kyu Kim ,  Seong-Ki Lee ,  Jin-Seok Lee ,  Kang-Hoon Kim ,  Sung-Kew Park ,  Kyeong-Lak Jeon

IPC分类号： G21C3/34

CPC分类号： G21C3/352 ,  G21C3/322 ,  G21C3/356 ,  Y02E30/38

摘要： Disclosed is a spacer grid assembly with mixing vanes supporting fuel rods of nuclear fuel assemblies and mixing coolant that flows around the fuel rods, and more particularly, a spacer grid equipped with mixing vanes that mix coolant flowing around fuel rods.The spacer grid with hydraulically balanced mixing vane patterns, in the spacer grid equipped with a strip dividing a plurality of unit grid cells and a plurality of springs, protruded in uniform directions of vertical and horizontal directions on a grid surface of the strip and supporting nuclear fuel rods, which includes: a plurality of mixing vanes protruded to the downstream of coolant on an upper end of the inner grid surface, wherein positions and directions of the mixing vanes are formed in regular patterns on the spacer grid. Thus, it can minimize coolant flow induced vibration of the spacer grid by balancing hydraulic load generated by the mixing vanes, around the center of the spacer grids.

摘要翻译： 公开了一种间隔栅格组件，其具有支撑核燃料组件的燃料棒的混合叶片和混合围绕燃料棒流动的冷却剂，更具体地，配备有混合叶片的间隔栅格，混合叶片将燃料棒周围的冷却剂混合。 具有液压平衡混合叶片图案的间隔栅格，在间隔栅格中配备有分隔多个单位网格单元的条带和多个弹簧，在条带的网格表面上沿垂直和水平方向的均匀方向突出并支撑核 燃料棒，其包括：在内网格表面的上端突出到冷却剂下游的多个混合叶片，其中混合叶片的位置和方向以间隔网格上的规则图案形成。 因此，通过平衡由间隔栅格中心周围的混合叶片产生的液压负荷，可以最小化间隔栅格的冷却剂流动引起的振动。