公开(公告)号：US5339341A

公开(公告)日：1994-08-16

申请号：US123419

申请日：1993-09-17

申请人： Raymond A. King ,  David A. Farnsworth ,  Jerome S. D'Orio

发明人： Raymond A. King ,  David A. Farnsworth ,  Jerome S. D'Orio

IPC分类号： G21C3/322 ,  G21C3/34

CPC分类号： G21C3/34 ,  G21C3/322 ,  G21Y2002/201 ,  G21Y2004/302 ,  Y02E30/38

摘要： A mixer grid for a nuclear reactor fuel assembly has a plurality of strips arranged in interlocking rows and columns defining a plurality of cells. A stopper is fixed to each corner of each cell for both directing coolant flow, providing coolant mixing and providing a smooth contact surface for the fuel rod. The stopper is either cone-shaped or cylindrical for directing and channeling coolant flow. The stopper also has a smooth, flat chamfered surface for contacting the fuel rod and minimizing damage upon the shifting of the fuel rod. The grid is attached to the nuclear reactor fuel assembly by using guide cells comprising a plurality of support arches for welding to the nuclear reactor fuel assembly.

摘要翻译： 用于核反应堆燃料组件的混合器栅格具有多个条，其以限定多个单元的互锁行和列布置。 一个止动器被固定到每个电池的每个角落，用于引导冷却剂流动，提供冷却剂混合并为燃料棒提供光滑的接触表面。 止动器是圆锥形或圆柱形，用于引导和引导冷却剂流。 止动器还具有平滑的平坦的倒角表面，用于接触燃料棒并且最小化燃料棒移动时的损坏。 通过使用包括用于焊接到核反应堆燃料组件的多个支撑拱的引导单元将格栅连接到核反应堆燃料组件。