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    Guide thimble plug for nuclear fuel assembly
    3.
    发明授权
    Guide thimble plug for nuclear fuel assembly 有权
    用于核燃料组件的导向套管塞

    公开(公告)号：US08811566B2

    公开(公告)日：2014-08-19

    申请号：US12749470

    申请日：2010-03-29

    申请人： Nam Gyu Park ,  Gi-Jun Gwon ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Jin Seok Lee ,  Kyong Bo Eom ,  Joon Kyoo Park ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

    发明人： Nam Gyu Park ,  Gi-Jun Gwon ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Jin Seok Lee ,  Kyong Bo Eom ,  Joon Kyoo Park ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

    IPC分类号： G21C5/04 ,  G21C3/32 ,  G21C3/33

    CPC分类号： G21C3/32 ,  G21C3/3305 ,  Y02E30/40

    摘要： A guide thimble plug for a nuclear fuel assembly is provided, in which an internal threaded hole is formed through a main body so that the main body is coupled to a bottom nozzle by a screw coupling. An upper insert part is formed in the upper end of the main body. The upper insert part is inserted into a shock absorption tube. A thermal deformation prevention part is formed on the main body below the upper insert part and is recessed inward from the outer surface of the main body such that, when the main body is coupled to the guide thimble, a gap is defined between the thermal deformation prevention part and the guide thimble. The guide thimble and the shock absorption tube can be reliably fastened to the bottom nozzle, and thermal deformation of the guide thimble can be minimized.

    摘要翻译： 提供了一种用于核燃料组件的导向套筒塞，其中内螺纹孔通过主体形成，使得主体通过螺纹联接件联接到底部喷嘴。 上部插入部分形成在主体的上端。 将上部插入部分插入减震管中。 一个热变形防止部分形成在主体下面的上插入部分上，并且从主体的外表面向内凹入，使得当主体联接到导向套管时，在热变形 预防部分和导向套管。 引导套管和减震管可以可靠地固定到底部喷嘴，并且导引套管的热变形可以最小化。

    Nuclear fuel grid assembly with hydraulically balanced mixing vane pattern
    8.
    发明授权
    Nuclear fuel grid assembly with hydraulically balanced mixing vane pattern 有权
    具有液压平衡混合叶片模式的核燃料电网组件

    公开(公告)号：US08335293B1

    公开(公告)日：2012-12-18

    申请号：US12434985

    申请日：2009-05-04

    申请人： Kyong-Bo Eom ,  Kyu-Tae Kim ,  Jung-Min Suh ,  Nam-Gyu Park ,  Joon-Kyoo Park ,  Jin-Sun Kim ,  Dong-Geun Ha ,  Kyoung-Joo Kim ,  Il-Kyu Kim ,  Seong-Ki Lee ,  Jin-Seok Lee ,  Kang-Hoon Kim ,  Sung-Kew Park ,  Kyeong-Lak Jeon

    发明人： Kyong-Bo Eom ,  Kyu-Tae Kim ,  Jung-Min Suh ,  Nam-Gyu Park ,  Joon-Kyoo Park ,  Jin-Sun Kim ,  Dong-Geun Ha ,  Kyoung-Joo Kim ,  Il-Kyu Kim ,  Seong-Ki Lee ,  Jin-Seok Lee ,  Kang-Hoon Kim ,  Sung-Kew Park ,  Kyeong-Lak Jeon

    IPC分类号： G21C3/34

    CPC分类号： G21C3/352 ,  G21C3/322 ,  G21C3/356 ,  Y02E30/38

    摘要： Disclosed is a spacer grid assembly with mixing vanes supporting fuel rods of nuclear fuel assemblies and mixing coolant that flows around the fuel rods, and more particularly, a spacer grid equipped with mixing vanes that mix coolant flowing around fuel rods.The spacer grid with hydraulically balanced mixing vane patterns, in the spacer grid equipped with a strip dividing a plurality of unit grid cells and a plurality of springs, protruded in uniform directions of vertical and horizontal directions on a grid surface of the strip and supporting nuclear fuel rods, which includes: a plurality of mixing vanes protruded to the downstream of coolant on an upper end of the inner grid surface, wherein positions and directions of the mixing vanes are formed in regular patterns on the spacer grid. Thus, it can minimize coolant flow induced vibration of the spacer grid by balancing hydraulic load generated by the mixing vanes, around the center of the spacer grids.

    摘要翻译： 公开了一种间隔栅格组件，其具有支撑核燃料组件的燃料棒的混合叶片和混合围绕燃料棒流动的冷却剂，更具体地，配备有混合叶片的间隔栅格，混合叶片将燃料棒周围的冷却剂混合。 具有液压平衡混合叶片图案的间隔栅格，在间隔栅格中配备有分隔多个单位网格单元的条带和多个弹簧，在条带的网格表面上沿垂直和水平方向的均匀方向突出并支撑核 燃料棒，其包括：在内网格表面的上端突出到冷却剂下游的多个混合叶片，其中混合叶片的位置和方向以间隔网格上的规则图案形成。 因此，通过平衡由间隔栅格中心周围的混合叶片产生的液压负荷，可以最小化间隔栅格的冷却剂流动引起的振动。