公开(公告)号：US09934879B2

公开(公告)日：2018-04-03

申请号：US14646709

申请日：2013-11-28

申请人： AREVA NP

发明人： Jörg Peucker ,  Norbert Schmidt ,  Veit Marx ,  Julien Desbois

IPC分类号： G21C3/356 ,  G21C3/322 ,  G21C3/352 ,  G21C3/34

CPC分类号： G21C3/356 ,  G21C3/322 ,  G21C3/352 ,  G21C3/3566 ,  G21C2003/3432 ,  Y02E30/38

摘要： A fuel rod support insert for a nuclear fuel assembly spacer grid, a spacer grid and a nuclear fuel assembly are provided. The support insert is for a nuclear fuel assembly spacer grid comprising interlaced straps defining a lattice of cells for receiving fuel rods, the insert being adapted to be secured to the straps for extending in at least one cell. The insert extends along an axis intended to be parallel to that of a cell and comprises two axially spaced end portions for connecting the insert to the straps and at least one elongated blade-like spring extending axially between the end portions for supporting a fuel rod. The spring has a non-rectilinear cross-section in each plane perpendicular to the insert axis.

公开(公告)号：US20150287481A1

公开(公告)日：2015-10-08

申请号：US14646709

申请日：2013-11-28

申请人： AREVA NP

发明人： Jörg Peucker ,  Norbert Schmidt ,  Veit Marx ,  Julien Desbois

IPC分类号： G21C3/356 ,  G21C3/322

CPC分类号： G21C3/356 ,  G21C3/322 ,  G21C3/352 ,  G21C3/3566 ,  G21C2003/3432 ,  Y02E30/38

摘要： A fuel rod support insert for a nuclear fuel assembly spacer grid, a spacer grid and a nuclear fuel assembly are provided. The support insert is for a nuclear fuel assembly spacer grid comprising interlaced straps defining a lattice of cells for receiving fuel rods, the insert being adapted to be secured to the straps for extending in at least one cell. The insert extends along an axis intended to be parallel to that of a cell and comprises two axially spaced end portions for connecting the insert to the straps and at least one elongated blade-like spring extending axially between the end portions for supporting a fuel rod. The spring has a non-rectilinear cross-section in each plane perpendicular to the insert axis.

摘要翻译： 提供了用于核燃料组件间隔栅格，间隔栅格和核燃料组件的燃料棒支撑插入件。 支撑插入件用于核燃料组件间隔栅格，其包括限定用于接收燃料棒的电池格子的隔行带，该插入件适于固定到带子上以在至少一个电池中延伸。 插入件沿着旨在平行于电池单元的轴线延伸，并且包括用于将插入件连接到带子的两个轴向间隔开的端部和在端部之间轴向延伸的至少一个细长的叶片状弹簧，用于支撑燃料棒。 弹簧在垂直于刀片轴线的每个平面中具有非直线横截面。