Fuel assembly and spacer for a nuclear reactor
    2.
    发明授权
    Fuel assembly and spacer for a nuclear reactor 失效
    用于核反应堆的燃料组件和间隔件

    公开(公告)号:US5666389A

    公开(公告)日:1997-09-09

    申请号:US329410

    申请日:1994-10-27

    IPC分类号: G21C3/34 G21C3/344

    摘要: The invention relates to a fuel assembly (1) and a spacer (7) for a nuclear reactor wherein the spacer comprises a plurality of cells (9) for retaining and mutually fixing parallel elongated elements (3, 8) extending through the cells to form a bundle in the fuel assembly. The cells are tubular and internally provided with four elongated, non-independently resilient supports (10), formed in the sleeve material, or with two elongated, non-independently resilient supports (10), formed in the sleeve material, and two independently resilient supports (16), wherein the supports are intended to provide an all-sided positioning of the elongated element. (FIG. 2)

    摘要翻译: 本发明涉及用于核反应堆的燃料组件(1)和间隔器(7),其中间隔件包括多个电池(9),用于保持并相互固定延伸穿过电池的平行细长元件(3,8)以形成 燃料组件中的一束。 电池是管状的并且内部设置有形成在套筒材料中的四个细长的,非独立的弹性支撑件(10),或者形成在套筒材料中的两个细长的,非独立的弹性支撑件(10),以及两个独立的弹性 支撑件(16),其中支撑件旨在提供细长元件的全方位定位。 (图2)

    Fuel assembly and spacer for a nuclear reactor
    3.
    发明授权
    Fuel assembly and spacer for a nuclear reactor 失效
    用于核反应堆的燃料组件和间隔件

    公开(公告)号:US5862196A

    公开(公告)日:1999-01-19

    申请号:US860015

    申请日:1997-06-20

    申请人: Dietmar Wolfram

    发明人: Dietmar Wolfram

    IPC分类号: G21C3/322 G21C3/34 G21C3/344

    摘要: A spacer including a plurality of cells to retain and mutually fix parallel, elongated elements, extending through the cells, in a bundle in a fuel assembly for a nuclear reactor where a coolant is adapted to flow from below and upwards. Between the cells, secondary channels are formed. At least one of the spacers includes at least two deflection members being substantially arranged so as to be surrounded by the cells. The deflection members are axially spaced-apart in the direction of flow of the coolant and relative to each other at a pitch angle for stepwise axial and radial deflection and guiding of at least part of the coolant flow towards fuel rods included in the bundle. The fuel rods are arranged close to the secondary channels.

    摘要翻译: PCT No.PCT / SE95 / 01472 Sec。 371日期:1997年6月20日 102(e)日期1997年6月20日PCT提交1995年11月7日PCT公布。 出版物WO96 / 日期1996年6月27日一种包括多个电池的间隔件,用于保持和相互固定平行的,细长的元件,其延伸穿过电池,在用于核反应堆的燃料组件中的束中,其中冷却剂适于从下方和上方流动。 在单元之间形成次级通道。 至少一个间隔件包括至少两个偏转构件,其基本上被布置成被单元包围。 偏转构件在冷却剂的流动方向上以相对于彼此的方向轴向间隔开,用于逐步的轴向和径向偏转,并且至少部分冷却剂流朝着包括在束中的燃料棒引导。 燃料棒布置成靠近次级通道。