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    Guide thimble of dual tube type structure nuclear fuel assembly
    3.
    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。

    POROUS PLENUM SPACER FOR DUAL-COOLED FUEL ROD
    8.
    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。

    Spacer grid for nuclear reactor fuel assemblies with grid springs maintaining conformal contact with fuel rods and enlarged elastic range
    10.
    发明授权
    Spacer grid for nuclear reactor fuel assemblies with grid springs maintaining conformal contact with fuel rods and enlarged elastic range 有权
    具有栅格弹簧的核反应堆燃料组件的间隔栅格保持与燃料棒的保形接触和扩大的弹性范围

    公开(公告)号：US06707872B2

    公开(公告)日：2004-03-16

    申请号：US10010526

    申请日：2001-12-07

    申请人： Kyung Ho Yoon ,  Heung Seok Kang ,  Hyung Kyu Kim ,  Kee Nam Song ,  Youn Ho Jung ,  Tae Hyun Chun ,  Dong Seok Oh ,  Wang Kee In ,  Gyung Jin Park

    发明人： Kyung Ho Yoon ,  Heung Seok Kang ,  Hyung Kyu Kim ,  Kee Nam Song ,  Youn Ho Jung ,  Tae Hyun Chun ,  Dong Seok Oh ,  Wang Kee In ,  Gyung Jin Park

    IPC分类号： G21C334

    CPC分类号： G21C3/3563 ,  G21Y2002/303 ,  G21Y2004/301 ,  Y02E30/40

    摘要： A spacer grid used for placing and supporting fuel rods in nuclear reactor fuel assemblies is disclosed. The spacer grid of this invention has a plurality of grid springs designed to have an optimal shape of their vertical support parts, thus reducing fretting wear of the fuel rods caused by contact of the fuel rods with the grid springs. The grid spring has a vertical support part and a fuel rod support part. The vertical support part includes upper and lower base parts extending downward and upward from the central portions of the top and bottom edges of an opening formed at the central portion of a unit strip, and two bridge parts branched from the upper base part and extending symmetrically downward until they are united at the lower base part. The fuel rod support part includes a conformal support part brought into surface contact with the external surface of a fuel rod. Two transverse connection parts extend outward from the opposite outside edges of the conformal support part while being specifically bent, and are integrated with the central portions of the inside edges of the two bridge parts into a single structure, thus connecting the fuel rod support part to the vertical support part.

    摘要翻译： 公开了一种用于将燃料棒放置和支撑在核反应堆燃料组件中的间隔栅格。 本发明的间隔栅格具有多个格栅弹簧，其被设计成具有其垂直支撑部分的最佳形状，从而减少由燃料棒与格栅弹簧的接触引起的燃料棒的微动磨损。 栅格弹簧具有垂直支撑部分和燃料棒支撑部分。 垂直支撑部分包括从形成在单元条的中心部分的开口的顶部和底部边缘的中心部分向下和向上延伸的上部和下部基部，以及从上部基部分支并且对称延伸的两个桥接部分 向下，直到它们结合在下基部。 燃料棒支撑部分包括与燃料棒的外表面接触的共形支撑部分。 两个横向连接部分从保形支撑部分的相对的外边缘向外延伸，同时被特别弯曲，并且与两个桥接部分的内边缘的中心部分成一体，从而将燃料棒支撑部分连接到 垂直支撑部分。