Fuel assembly for a boiling water reactor
    1.
    发明授权
    Fuel assembly for a boiling water reactor 失效
    用于沸水反应堆的燃料组件

    公开(公告)号:US5483565A

    公开(公告)日:1996-01-09

    申请号:US238526

    申请日:1994-05-05

    摘要: A fuel assembly (16) for a boiling-water nuclear reactor arranged in groups with four fuel assemblies in each group and with a centrally placed control rod (17) forming a supercell. Each fuel assembly (16) includes a plurality of vertical fuel rods (12) with enriched nuclear fuel material (24), said rods being arranged between a bottom tie plate (13) and a top tie plate (14) in a surrounding vertical fuel channel (1) which is connected to a transition section (2). The transition section is provided with holes (20a-d) for by-pass flow outside the fuel assembly. The fuel assembly is characterized in that the by-pass holes are arranged in such a way that when turning the fuel assembly (16), including the transition section (2), 90.degree., 180.degree. or 270.degree. around the longitudinal axis of the fuel assembly, said holes are adapted to direct the by-pass flow away from the control rod (17).

    摘要翻译: 一种用于沸水核反应堆的燃料组件(16),每组配置有四个燃料组件,并且具有形成超电池的中心放置的控制棒(17)。 每个燃料组件(16)包括具有富集的核燃料材料(24)的多个垂直燃料棒(12),所述杆布置在周围垂直燃料中的底板(13)和顶板(14)之间 通道(1),其连接到过渡部分(2)。 过渡部分设置有用于在燃料组件外侧的旁路流动的孔(20a-d)。 燃料组件的特征在于,旁通孔以这样的方式布置,使得当包括过渡部分(2)的燃料组件(16)绕着轴的纵轴旋转90°,180°或270° 燃料组件,所述孔适于将旁路流引导离开控制棒(17)。

    Fuel assembly for a boiling water reactor
    2.
    发明授权
    Fuel assembly for a boiling water reactor 失效
    用于沸水反应堆的燃料组件

    公开(公告)号:US5896436A

    公开(公告)日:1999-04-20

    申请号:US981629

    申请日:1998-03-12

    申请人: Magnus Gronlund

    发明人: Magnus Gronlund

    IPC分类号: G21C3/33 G21C3/334 G21C3/32

    摘要: The present invention relates to a fuel assembly in or for a boiling water reactor, comprising a plurality of vertical fuel rods extending between a top and a bottom tie plate and surrounded by a sleeve-formed casing where the fuel rods are positioned with the aid of a plurality of axially separated spacers. The invention is characterized in that only one fuel rod is detachably arranged in the top tie plate and in the bottom tie plate and in that at least one of the other fuel rods is fixed to the bottom tie plate and adapted to extend above the top tie plate to obtain a tensile-force-transmitting connection with the bottom tie plate.

    摘要翻译: PCT No.PCT / SE96 / 00749 Sec。 371日期1998年3月12日 102(e)1998年3月12日PCT PCT 1996年6月7日PCT公布。 公开号WO97 / 00520 日期1997年1月3日本发明涉及一种在沸水反应堆中或用于沸水反应堆中的燃料组件,包括多个垂直燃料棒,其在顶部和底部连接板之间延伸并且被套筒形成的壳体围绕,其中燃料棒是 借助于多个轴向分离的间隔件定位。 本发明的特征在于,只有一个燃料棒可拆卸地布置在顶部连接板和底部连接板中,并且其中至少一个燃料棒固定到底部连接板并且适于在顶部连杆上方延伸 以获得与底部连接板的拉伸力传递连接。