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    Fuel assembly and associated grid for nuclear reactor
    1.
    发明授权
    Fuel assembly and associated grid for nuclear reactor 失效
    燃料组件和核反应堆联网

    公开(公告)号：US06819733B2

    公开(公告)日：2004-11-16

    申请号：US10147215

    申请日：2002-05-15

    申请人： Richard P. Broders ,  Stephen C. Hatfield ,  Michael L. Martin ,  Paul F. Joffre ,  Zeses E. Karoutas ,  Patrick A. Perrotti

    发明人： Richard P. Broders ,  Stephen C. Hatfield ,  Michael L. Martin ,  Paul F. Joffre ,  Zeses E. Karoutas ,  Patrick A. Perrotti

    IPC分类号： G21C334

    CPC分类号： G21C3/356 ,  G21Y2002/20 ,  G21Y2002/30 ,  G21Y2004/30 ,  Y02E30/40

    摘要： An improved grid for use in a fuel assembly of a nuclear reactor includes a plurality of straps that are interconnected with one another in a lattice fashion to define a plurality of cells, with the straps being configured to include a plurality of relatively more compliant springs and a plurality of relatively less compliant dimples, whereby each cell includes only one pair of springs and one pair of dimples disposed therein. The springs and dimples are contoured to engage a fuel rod or a thimble tube disposed within the cell. Each spring directly confronts one of the dimples to provide confronting pairs of features that engage the fuel rods or thimble tubes, with each cell including two pairs of confronting features. The ligaments of the springs and dimples extend in a direction generally perpendicular to the direction of coolant flow through the reactor in order to minimize pressure drop.

    摘要翻译： 用于核反应堆的燃料组件中的改进的格栅包括多个彼此以格子形式彼此互连以限定多个单元的带，其中带被配置为包括多个相对更柔顺的弹簧， 多个相对较小的顺应性凹坑，由此每个单元仅包括一对弹簧和一对布置在其中的凹坑。 弹簧和凹坑的轮廓是与设置在电池内的燃料棒或套管接合。 每个弹簧直接面对一个凹坑，以提供接合燃料棒或套管的面对的特征对，每个单元包括两对相对的特征。 弹簧和凹坑的韧带在大致垂直于冷却剂流过反应器的方向的方向上延伸，以便最小化压降。