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    Dual-cooled fuel rod's spacer grids with upper and lower cross-wavy-shape dimple
    1.
    发明授权
    Dual-cooled fuel rod's spacer grids with upper and lower cross-wavy-shape dimple 有权
    双冷燃料棒的间隔网格，上下交叉波浪形凹坑

    公开(公告)号：US09136025B2

    公开(公告)日：2015-09-15

    申请号：US13230439

    申请日：2011-09-12

    申请人： Chang Hwan Shin ,  Kang Hee Lee ,  Dong-Seok Oh ,  Wang Kee In ,  Tae Hyun Chun ,  Kun Woo Song

    发明人： Chang Hwan Shin ,  Kang Hee Lee ,  Dong-Seok Oh ,  Wang Kee In ,  Tae Hyun Chun ,  Kun Woo Song

    IPC分类号： G01S5/04 ,  G21C3/356 ,  G21C3/322 ,  G21C3/352

    CPC分类号： G21C3/3563 ,  G21C3/322 ,  G21C3/352 ,  Y02E30/38

    摘要： A dual-cooled fuel rod's spacer grid with upper and lower dimples, including a blocking area of a flow passage that coolant flows through is reduced and dual-cooled fuel rods are supported, and reduces a turbulent flow of the coolant as well as vibrations of the dual-cooled fuel rods, thereby lessening fretting damage done to the rods. The spacer grid includes a plurality of unit grid straps, each of which includes a body disposed in a vertical direction, an upper dimple protruding from an upper portion of the body, and a lower dimple spaced apart from the upper dimple in a downward direction and protruding from a lower portion of the body. The unit grid straps form a grid structure that have inner grid holes into which the dual-cooled fuel rods are held, and the held dual-cooled fuel rods are each supported in four directions by the upper and lower dimples.

    摘要翻译： 双冷却燃料棒的间隔栅格具有上下凹坑，包括冷却剂流过的流动通道的阻塞区域，并且双重冷却的燃料棒被支撑，并且减少了冷却剂的湍流以及振动 双冷却燃料棒，从而减轻对棒的微小损坏。 间隔网格包括多个单位网格带，每个单元网格带包括沿垂直方向设置的主体，从主体的上部突出的上凹坑以及沿着向下方向与上凹坑间隔开的下凹坑，以及 从身体的下部突出。 单元网格带形成具有内栅格孔的栅格结构，双冷却燃料棒被保持在其中，并且保持的双重冷却燃料棒通过上下凹坑各自支撑在四个方向上。

    POROUS PLENUM SPACER FOR DUAL-COOLED FUEL ROD
    7.
    发明申请
    POROUS PLENUM SPACER FOR DUAL-COOLED FUEL ROD 审中-公开
    用于双冷却燃料油的多孔全空间

    公开(公告)号：US20100142668A1

    公开(公告)日：2010-06-10

    申请号：US12630901

    申请日：2009-12-04

    申请人： Young Ho Lee ,  Kang Hee Lee ,  Jae Yong Kim ,  Kyung Ho Yoon ,  Hyung Kyu Kim ,  Chang Hwan Shin ,  Dong Seok Oh ,  Wang Ki In ,  Tae Hyun Chun ,  Kun Woo Song

    发明人： Young Ho Lee ,  Kang Hee Lee ,  Jae Yong Kim ,  Kyung Ho Yoon ,  Hyung Kyu Kim ,  Chang Hwan Shin ,  Dong Seok Oh ,  Wang Ki In ,  Tae Hyun Chun ,  Kun Woo Song

    IPC分类号： G21C3/04

    CPC分类号： G21C3/044 ,  G21C3/17 ,  Y02E30/40

    摘要： A porous plenum spacer is inserted into the plenum of a dual-cooled fuel rod having concentric inner and outer cladding tubes. The porous plenum spacer includes a hollow cylindrical body inserted into the annular space between the inner and outer cladding tubes. The hollow cylindrical body includes a plurality of through-holes formed in an outer circumference thereof or at least one groove formed in one of outer and inner circumferences thereof in a lengthwise direction. Pores formed by the through-holes or the grooves of the hollow cylindrical body of the porous plenum spacer are allowed to secure a space containing fission gas inevitably generated by a nuclear reaction.

    摘要翻译： 将多孔气室间隔件插入具有同心的内包壳管和外包层管的双冷却燃料棒的增压室中。 多孔气室间隔件包括插入在内包壳管和外包壳管之间的环形空间中的中空圆柱体。 中空圆柱体包括形成在其外圆周上的多个通孔或沿其长度方向形成在其外周和内周中的至少一个槽中的至少一个槽。 允许由多孔气室间隔件的中空圆柱体的通孔或凹槽形成的孔确保通过核反应不可避免地产生的包含裂变气体的空间。

    Guide thimble of dual tube type structure nuclear fuel assembly
    9.
    发明申请
    Guide thimble of dual tube type structure nuclear fuel assembly 有权
    双管式结构核燃料组件导向套管

    公开(公告)号：US20090060117A1

    公开(公告)日：2009-03-05

    申请号：US12228567

    申请日：2008-08-13

    申请人： Kyung Ho Yoon ,  Jae Yong Kim ,  Dong Seok OH ,  Young Ho Lee ,  Kang Hee Lee ,  Hyung Kyu Kim

    发明人： Kyung Ho Yoon ,  Jae Yong Kim ,  Dong Seok OH ,  Young Ho Lee ,  Kang Hee Lee ,  Hyung Kyu Kim

    IPC分类号： G21C3/34

    CPC分类号： G21C3/322 ,  G21C3/326 ,  G21C7/103 ,  Y02E30/38 ,  Y02E30/39

    摘要： Disclosed herein is a guide thimble of a nuclear fuel assembly, which is capable of improving the cooling performance and the stability of a nuclear fuel, preventing a flow split in dual-cooling nuclear fuel rod and guide thimble sub channels for obtaining high combustion degree and high power, and minimizing a neutron absorption section in a reaction degree region. Since the guide thimble having the dual tube type structure is adopted, a flow split in the fuel rod and guide thimble sub channels can be reduced, and the degradation in performance of nuclear fuel due to increase of a neutron absorption section can be prevented. In order for compatibility with an existing control rod, a typical guide tube is used as an inner guide thimble, and an outer guide thimble is provided outside the inner guide thimble. Thus, the guide thimble has the dual tube type structure as a whole, and is coupled to the upper and lower end fittings so that it can prevent a flow unbalance due to the flow split in the fuel rod and guide thimble sub channels.

    摘要翻译： 本文公开了一种核燃料组件的导向套管，其能够改善核燃料的冷却性能和稳定性，防止双冷核燃料棒和引导套管子通道中的分流以获得高燃烧度， 高功率，并使反应程度区域中的中子吸收部分最小化。 由于采用具有双管式结构的导向套管，因此可以减少燃料棒和导向套管副通道中的流动分流，并且可以防止由于中子吸收部分的增加而引起的核燃料性能的劣化。 为了与现有的控制杆的兼容性，使用典型的导管作为内导向套管，并且外导向套管设置在内引导套管的外部。 因此，导向套管作为整体具有双管式结构，并且联接到上端和下端配件，使得其可以防止由于燃料棒和引导套管子通道中的流动分流而导致的流量不平衡。

    Guide thimble of dual tube type structure nuclear fuel assembly
    10.
    发明授权
    Guide thimble of dual tube type structure nuclear fuel assembly 有权
    双管式结构核燃料组件导向套管

    公开(公告)号：US08279995B2

    公开(公告)日：2012-10-02

    申请号：US12228567

    申请日：2008-08-13

    申请人： Kyung Ho Yoon ,  Jae Yong Kim ,  Dong Seok Oh ,  Young Ho Lee ,  Kang Hee Lee ,  Hyung Kyu Kim

    发明人： Kyung Ho Yoon ,  Jae Yong Kim ,  Dong Seok Oh ,  Young Ho Lee ,  Kang Hee Lee ,  Hyung Kyu Kim

    IPC分类号： G21C1/04

    CPC分类号： G21C3/322 ,  G21C3/326 ,  G21C7/103 ,  Y02E30/38 ,  Y02E30/39

    摘要： Disclosed herein is a guide thimble of a nuclear fuel assembly, which is capable of improving the cooling performance and the stability of a nuclear fuel, preventing a flow split in dual-cooling nuclear fuel rod and guide thimble sub channels for obtaining high combustion degree and high power, and minimizing a neutron absorption section in a reaction degree region. Since the guide thimble having the dual tube type structure is adopted, a flow split in the fuel rod and guide thimble sub channels can be reduced, and the degradation in performance of nuclear fuel due to increase of a neutron absorption section can be prevented. In order for compatibility with an existing control rod, a typical guide tube is used as an inner guide thimble, and an outer guide thimble is provided outside the inner guide thimble. Thus, the guide thimble has the dual tube type structure as a whole, and is coupled to the upper and lower end fittings so that it can prevent a flow unbalance due to the flow split in the fuel rod and guide thimble sub channels.

    摘要翻译： 本文公开了一种核燃料组件的导向套管，其能够改善核燃料的冷却性能和稳定性，防止双冷核燃料棒和引导套管子通道中的分流以获得高燃烧度， 高功率，并使反应程度区域中的中子吸收部分最小化。 由于采用具有双管式结构的导向套管，因此可以减少燃料棒和导向套管副通道中的流动分流，并且可以防止由于中子吸收部分的增加而引起的核燃料性能的劣化。 为了与现有的控制杆的兼容性，使用典型的导管作为内导向套管，并且外导向套管设置在内引导套管的外部。 因此，导向套管作为整体具有双管式结构，并且联接到上端和下端配件，使得其可以防止由于燃料棒和引导套管子通道中的流动分流而导致的流量不平衡。