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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。

    Lips-type multi-purposed nuclear fuel assembly spacer grid
    9.
    发明授权
    Lips-type multi-purposed nuclear fuel assembly spacer grid 失效
    嘴唇型多用途核燃料组件间隔网格

    公开(公告)号：US06807246B1

    公开(公告)日：2004-10-19

    申请号：US10328974

    申请日：2002-12-24

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

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

    IPC分类号： G21C334

    CPC分类号： G21C3/352 ,  G21C3/3563 ,  G21Y2002/201 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/40

    摘要： A lips-type multi-purposed spacer grid for supporting fuel rods within a nuclear fuel assembly is disclosed. In the spacer grid, the fuel rods are in contact with dimples and water strider-type springs in an equiangular surface contact manner. The spacer grid distributes load, applied to the springs, to the entire structure of its inner strips, thus reducing peak stress at the contact surfaces between the fuel rods and the springs and diminishing vibration of the fuel rods, and thereby reducing possible fretting wear of the fuel rods due to hydraulic vibration of the fuel rods. The spacer grid also enlarges the allowable elastic range of the springs, and allows the springs to soundly support the fuel rods by using residual spring force. The spacer grid has mixing blades capable of minimizing pressure loss and flow interference, so that the fuel rod cooling efficiency of the nuclear fuel assembly is improved.

    摘要翻译： 公开了一种用于在核燃料组件内支撑燃料棒的唇形多用间隔栅格。 在间隔网格中，燃料棒以等角面接触的方式接触凹坑和水刺式弹簧。 间隔栅格将施加到弹簧的负载分配到其内部条的整个结构，从而减少燃料棒和弹簧之间的接触表面处的峰值应力，并减少燃料棒的振动，从而减少可能的微动磨损 由于燃料棒的液压振动引起的燃料棒。 间隔网格也扩大了弹簧的允许弹性范围，并允许弹簧通过使用残余弹簧力来牢固地支撑燃料棒。 间隔栅格具有能够最小化压力损失和流动干扰的混合叶片，从而提高了核燃料组件的燃料棒冷却效率。

    Side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies
    10.
    发明授权
    Side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies 有权
    用于核燃料组件的侧开口喷嘴型双板间隔栅格

    公开(公告)号：US06744843B2

    公开(公告)日：2004-06-01

    申请号：US10452030

    申请日：2003-05-30

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

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

    IPC分类号： G21C334

    CPC分类号： G21C3/3566 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/40

    摘要： A side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies is disclosed. The spacer grid includes intersecting inner strips and four perimeter strips. Each inner strip has unit strip parts, each fabricated by integrating two unit sheet parts together into a single structure, such that the two unit sheet parts face each other and a nozzle type coolant channel is defined between the two unit sheet parts. Each perimeter strip is fabricated by integrating an inner thin sheet having the unit sheet parts with a flat outer thin sheet having a width corresponding to the width of the inner thin sheet into a single structure. The coolant channel has one or more outlets formed by cutting an upper portion of one of the two unit sheet parts of each unit strip part. Each unit sheet part has a slot longitudinally formed on each side surface of a spring that is projected from the unit sheet part to support a fuel rod within a four-walled cell. The spacer grid thus effectively deflects and mixes coolants together to improve the heat transfer effect between fuel rods and coolants, and enhances its strength to effectively resist laterally directed forces acting thereon, and remarkably improves spring performance of its fuel rod support parts, thus accomplishing desired soundness of the fuel assemblies.

    摘要翻译： 公开了一种用于核燃料组件的侧槽式喷嘴型双层间隔栅格。 间隔网格包括相交的内条和四条周边条。 每个内条具有单元条部分，每个单元条部分通过将两个单元片部分集成在一起成为单个结构而制成，使得两个单元片部分彼此面对，并且在两个单位片部分之间限定喷嘴型冷却剂通道。 每个周边条通过将具有单位片部分的内部薄片与具有对应于内部薄片的宽度的宽度的平坦外部薄片整合成单一结构来制造。 冷却剂通道具有通过切割每个单位条部分的两个单位片部分之一的上部而形成的一个或多个出口。 每个单位片部分具有纵向形成在弹簧的每个侧表面上的槽，该弹簧从单元片部分突出以将燃料棒支撑在四壁电池内。 因此间隔网格因此有效地将冷却剂偏转并混合在一起以改善燃料棒和冷却剂之间的传热效果，并且增强其强度以有效地抵抗作用在其上的横向定向力，并且显着地改善其燃料棒支撑部件的弹簧性能，从而实现期望的 燃料组件的健全性。