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1. 发明授权

EP2810283B1 SPACER GRID 有权转让
标题翻译：间隔栅格
公开(公告)号：EP2810283B1
公开(公告)日：2017-09-27
申请号：EP13784959.2
申请日：2013-01-23
申请人： Babcock & Wilcox Nuclear Energy, Inc.
发明人： WALTON, Lewis, A. , PABIS, George, S. , DOAN, Andrew, W. , HATMAKER, James, G.
IPC分类号： G21C3/34 , G21C3/352
CPC分类号： G21C3/352 , G21C3/356 , G21C3/3563 , Y02E30/40
摘要： A spacer grid includes interlocked straps comprising metal sheets or plates welded together to define a spacer grid having a top and bottom. The interlocked straps define a plurality of cells comprising vertical passages connecting the top and bottom of the spacer grid. The cells include: upper dimples proximate to the top of the spacer grid and distal from the mid-plane of the spacer grid; lower dimples proximate to the bottom of the spacer grid and distal from the mid-plane of the spacer grid; cantilevered upper springs having fuel rod engagement surfaces proximate to the top of the spacer grid and distal from the mid-plane of the spacer grid; and cantilevered lower springs having fuel rod engagement surfaces proximate to the bottom of the spacer grid and distal from the mid-plane of the spacer grid.
摘要翻译：定位格架包括互锁的绑带，其包括焊接在一起以限定具有顶部和底部的定位格栅的金属片或板。互锁的条带限定多个单元，其包括连接定位格栅的顶部和底部的垂直通道。这些单元包括：靠近定位格架的顶部且远离定位格架的中平面的上凹坑; 靠近定位格架的底部且远离定位格架的中平面的下凹窝; 悬臂式上部弹簧，其具有靠近定位格架的顶部且远离定位格架的中平面的燃料棒接合表面; 以及悬臂式下弹簧，其具有靠近定位格架的底部并远离定位格架的中平面的燃料棒接合表面。

2. 发明公开

EP2745297A1 NUCLEAR REACTOR REFUELING METHODS AND APPARATUSES 有权转让
标题翻译：方法和燃料供应核反应堆DEVICES
公开(公告)号：EP2745297A1
公开(公告)日：2014-06-25
申请号：EP12825470.3
申请日：2012-07-18
申请人： Babcock & Wilcox Nuclear Energy, Inc.
发明人： ALES, Matthew, W. , WALTON, Lewis, A.
IPC分类号： G21C19/10
CPC分类号： G21C19/10 , G21C19/205
摘要： Refueling of a nuclear reactor (40) includes removing a fuel assembly (10). The removal method includes lowering a lifting tool (80) of a crane (44) onto a top of the fuel assembly. The lowered lifting tool including a plurality of downwardly extending elements (82) that surround and vertically overlap a portion (74) of a control rod assembly (70) extending above the top of the fuel assembly. The downwardly extending elements are locked with corresponding mating features (26) at the top of the fuel assembly to connect the lifting tool with the fuel assembly. The connected fuel assembly is moved into a spent fuel pool (42) using the crane, and the lifting tool is disconnected from the top of the fuel assembly by unlocking the downwardly extending elements from the corresponding mating features at the top of the fuel assembly.

3. 发明公开

EP2810283A1 SPACER GRID 有权转让
标题翻译： ABSTANDSGITTER
公开(公告)号：EP2810283A1
公开(公告)日：2014-12-10
申请号：EP13784959.2
申请日：2013-01-23
申请人： Babcock & Wilcox Nuclear Energy, Inc.
发明人： WALTON, Lewis, A. , PABIS, George, S. , DOAN, Andrew, W. , HATMAKER, James, G.
IPC分类号： G21C3/34 , G21C3/352
CPC分类号： G21C3/352 , G21C3/356 , G21C3/3563 , Y02E30/40
摘要： A spacer grid includes interlocked straps comprising metal sheets or plates welded together to define a spacer grid having a top and bottom. The interlocked straps define a plurality of cells comprising vertical passages connecting the top and bottom of the spacer grid. The cells include: upper dimples proximate to the top of the spacer grid and distal from the mid-plane of the spacer grid; lower dimples proximate to the bottom of the spacer grid and distal from the mid-plane of the spacer grid; cantilevered upper springs having fuel rod engagement surfaces proximate to the top of the spacer grid and distal from the mid-plane of the spacer grid; and cantilevered lower springs having fuel rod engagement surfaces proximate to the bottom of the spacer grid and distal from the mid-plane of the spacer grid.
摘要翻译：间隔网格包括互锁带，其包括焊接在一起的金属板或板，以限定具有顶部和底部的间隔栅格。互锁带限定多个单元，其包括连接间隔栅格的顶部和底部的垂直通道。电池包括：靠近隔离栅格顶部并远离间隔栅格的中间平面的上部凹坑; 较小的凹坑接近间隔栅格的底部并远离间隔栅格的中间平面; 悬臂式上弹簧具有靠近间隔栅格顶部并且远离间隔栅格的中间平面的燃料棒接合表面; 以及悬臂式下弹簧，其具有靠近间隔栅格的底部并且远离间隔栅格的中间平面的燃料棒接合表面。

4. 发明公开

EP2839468A2 LOWER END FITTING LOCKNUT FOR NUCLEAR FUEL ASSEMBLY 有权转让
标题翻译：核燃料棒束低尾的固定MOTHER
公开(公告)号：EP2839468A2
公开(公告)日：2015-02-25
申请号：EP13785098.8
申请日：2013-02-06
申请人： Babcock & Wilcox Nuclear Energy, Inc.
发明人： ULLMANN, Julius, M. , WALTON, Lewis, A. , JOHNSON, Mary, W.
IPC分类号： G21C3/33
CPC分类号： B25B23/0092 , F16B23/0015 , F16B39/025 , G21C3/3305 , G21C3/331 , G21C3/3315 , Y02E30/40
摘要： A fuel assembly includes a plurality of fuel rods comprising fissile material, a plurality of guide tubes interspersed amongst the fuel rods, an upper end fitting connected with upper ends of guide tubes, and a lower end fitting. End plugs are connected with the lower ends of the guide tubes. The end plugs have threaded male shafts extending from the lower ends of the guide tubes which pass through openings of the lower end fitting. Female lock nuts are threaded onto the threaded male shafts of the end plugs and lock with the lower end fitting to secure the lower end fitting to the lower ends of the guide tubes. The female lock nuts suitably have locking portions that are outwardly deformed into recesses of the lower end fitting to lock the lock nuts in place after tightening. Dashpot tubes may be disposed in the lower ends of the guide tubes and connected to the end plugs.

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