公开(公告)号：US20120063562A1

公开(公告)日：2012-03-15

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： G21C3/34

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。

公开(公告)号：US20110051882A1

公开(公告)日：2011-03-03

申请号：US12849431

申请日：2010-08-03

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

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

IPC分类号： G21C3/34 ,  B23P11/00

CPC分类号： G21C3/352 ,  G21C3/3416 ,  G21C3/3424 ,  G21C3/3566 ,  Y02E30/40 ,  Y10T29/49826

摘要： A truss-reinforced spacer grid and a method of manufacturing the same are provided, in which truss members having a small diameter are woven to form a truss structure surrounded by an external plate, and the truss structure is joined to the external plate to thereby improve the strength of the mechanical structure. The truss-reinforced spacer grid includes a truss structure in which horizontal trusses formed by horizontally weaving a plurality of truss members are vertically disposed at regular intervals, and an external plate is joined with ends of the horizontal trusses and surrounds the truss structure.

摘要翻译： 提供了一种桁架加强隔离栅格及其制造方法，其中将具有小直径的桁架构件编织以形成由外部板围住的桁架结构，并且将桁架结构连接到外部板，从而改善 机械结构的强度。 桁架加强的隔离栅格包括桁架结构，其中水平编织多个桁架构件形成的水平桁架以规则的间隔垂直设置，并且外部板与水平桁架的端部连接并且围绕桁架结构。

公开(公告)号：US07769125B2

公开(公告)日：2010-08-03

申请号：US10773733

申请日：2004-02-05

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

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

IPC分类号： G21C3/356

CPC分类号： G21C3/322 ,  G21C3/352 ,  G21C3/3563 ,  G21Y2002/201 ,  G21Y2002/206 ,  G21Y2002/303 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/32 ,  Y02E30/38

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 inner strips intersecting each other to form a plurality of guide tube cells and a plurality of fuel rod cells, with a plurality of mixing blades projecting upward from the inner strips at intersections of the inner strips. The spacer grid further includes a plurality of perimeter strips to encircle the intersecting inner strips. Each of the perimeter strips is fabricated with a plurality of unit intermediate strips and a plurality of unit corner strips, with a grid spring provided on each of the unit strips. The grid spring includes a vertical opening formed at a central area of each of the unit strips, a vertical support part extending vertically between the central portions of top and bottom edges of the vertical opening, and a fuel rod support part provided at a central portion of the vertical support part while being bent to have an outward rounded cross-section. The vertical support part is bent at two steps, and the fuel rod support part is bent to be in equiangular contact with each of the fuel rods, thus accomplishing a uniform contact pressure distribution when the fuel rod support part is in contact with each of the fuel rods.

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。 本发明的隔离栅格具有多个彼此相交的内条，以形成多个导管单元和多个燃料棒单元，多个混合叶片在内条的相交处从内条向上突出。 间隔网格还包括多个周边条，以包围相交的内条。 每个周边条带都具有多个单位中间带和多个单位角条，其中每个单位条带上均设有格栅弹簧。 格栅弹簧包括形成在每个单元条的中心区域处的垂直开口，在垂直开口的顶部和底部边缘的中心部分之间垂直延伸的垂直支撑部分，以及设置在中心部分的燃料棒支撑部分 的垂直支撑部分，同时弯曲成具有向外的圆形横截面。 垂直支撑部弯曲两步，燃料棒支撑部弯曲成与各燃料棒等角接触，从而当燃料棒支撑部与每个燃料棒接触时实现均匀的接触压力分布 燃料棒。

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。

公开(公告)号：US20050105677A1

公开(公告)日：2005-05-19

申请号：US10773733

申请日：2004-02-05

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

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

IPC分类号： G21C3/34

CPC分类号： G21C3/322 ,  G21C3/352 ,  G21C3/3563 ,  G21Y2002/201 ,  G21Y2002/206 ,  G21Y2002/303 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/32 ,  Y02E30/38

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 inner strips intersecting each other to form a plurality of guide tube cells and a plurality of fuel rod cells, with a plurality of mixing blades projecting upward from the inner strips at intersections of the inner strips. The spacer grid further includes a plurality of perimeter strips to encircle the intersecting inner strips. Each of the perimeter strips is fabricated with a plurality of unit intermediate strips and a plurality of unit corner strips, with a grid spring provided on each of the unit strips. The grid spring includes a vertical opening formed at a central area of each of the unit strips, a vertical support part extending vertically between the central portions of top and bottom edges of the vertical opening, and a fuel rod support part provided at a central portion of the vertical support part while being bent to have an outward rounded cross-section. The vertical support part is bent at two steps, and the fuel rod support part is bent to be in equiangular contact with each of the fuel rods, thus accomplishing a uniform contact pressure distribution when the fuel rod support part is in contact with each of the fuel rods.

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。 本发明的隔离栅格具有多个彼此相交的内条，以形成多个导管单元和多个燃料棒单元，多个混合叶片在内条的相交处从内条向上突出。 间隔网格还包括多个周边条，以包围相交的内条。 每个周边条带都具有多个单位中间带和多个单位角条，其中每个单位条带上均设有格栅弹簧。 格栅弹簧包括形成在每个单元条的中心区域处的垂直开口，在垂直开口的顶部和底部边缘的中心部分之间垂直延伸的垂直支撑部分，以及设置在中心部分的燃料棒支撑部分 的垂直支撑部分，同时弯曲成具有向外的圆形横截面。 垂直支撑部弯曲两步，燃料棒支撑部弯曲成与各燃料棒等角接触，从而当燃料棒支撑部与每个燃料棒接触时实现均匀的接触压力分布 燃料棒。

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。

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。

公开(公告)号：US08275088B2

公开(公告)日：2012-09-25

申请号：US12421829

申请日：2009-04-10

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

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

IPC分类号： G21C3/34

CPC分类号： G21C3/322 ,  G21C3/3305 ,  G21C3/3315 ,  Y02E30/38

摘要： A perforated plate support supports dual-cooled fuel rods, each of which has concentric outer and inner tubes and is coupled with upper and lower end plugs at upper and lower ends thereof, and guide thimbles, each of which is used as a passage for a control rod. The perforated plate support is formed as a support plate having the shape of a flat plate, which includes internal channel holes, each of which has a diameter corresponding to an outer diameter of the inner tube, guide thimble holes, each of which has a diameter corresponding to an outer diameter of the guide thimble, and sub-channel holes around each internal channel hole. The upper or lower end of the dual-cooled fuel rod is coupled to the support plate such that the outer diameter of the inner tube is matched with the diameter of the internal channel hole.

摘要翻译： 多孔板支撑件支撑双重冷却的燃料棒，每个燃料棒具有同心的外管和内管，并且在其上端和下端与上端和下端塞连接，导向套管每一个用作通道 控制棒。 多孔板支撑件形成为具有平板形状的支撑板，该支撑板包括内部通道孔，每个内部通道孔的直径对应于内部管的外径，导向套管孔各自具有直径 对应于导向套管的外径，以及在每个内部通道孔周围的子通道孔。 双冷却燃料棒的上端或下端与支撑板相连，使得内管的外径与内通道孔的直径相匹配。

公开(公告)号：US20110064184A1

公开(公告)日：2011-03-17

申请号：US12557939

申请日：2009-09-11

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： G21C3/34

CPC分类号： G21C3/352 ,  G21C3/356 ,  Y02E30/40

摘要： A spacer grid for nuclear fuel rods includes a plurality of unit spacer grids stacked one on top of another. Each unit spacer grid includes a plurality of unit spacer grid straps disposed at regular intervals in a row, and a plurality of fixing grid straps connected to respective opposite ends of the unit spacer grid straps so as to fix the unit spacer grid straps. Each unit spacer grid strap has convexities alternating with each other on opposite sides thereof at regular intervals, and at least one of the convexities has a diameter greater than the others. The unit spacer grids are rotated in one direction by a 90 or 180 degree angle when being stacked.

摘要翻译： 用于核燃料棒的间隔栅格包括多个堆叠在另一个顶部上的单元间隔栅格。 每个单元间隔栅格包括以规则的间隔布置成一排的多个单元隔离栅格带，以及连接到单元间隔栅格带的相应相对端的多个固定网格带，以固定单元间隔网格带。 每个单元间隔网格带在其相对侧上以规则的间隔彼此交替的凸起，并且至少一个凸起的直径大于其他直径。 当堆叠时，单元间隔栅格在一个方向上旋转90或180度。

公开(公告)号：US20090052607A1

公开(公告)日：2009-02-26

申请号：US12146493

申请日：2008-06-26

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

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

IPC分类号： G21C3/356 ,  G21C3/34

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

摘要： A spacer grid can be applied to close-spaced nuclear fuel rods. The spacer grid is directed to solve the problem in which, as the outer diameter of each nuclear fuel rod increases due to the use of dual-cooled nuclear fuel rods for improving cooling performance and obtaining high combustion and high output power, the gap between the neighboring nuclear fuel rods is narrowed to thus make it impossible to use an existing spacer grid. The spacer grid is a combination of unit grid straps, each of which has supports for supporting each of the nuclear fuel rods set in a narrow array and has a sheet shape, which are combined with each other. The supports are located at positions shifted from the longitudinal central line of each unit grid strap toward sub-channels.

摘要翻译： 间隔栅格可以应用于紧密间隔的核燃料棒。 针对这种间隔格栅来解决这样一个问题，即由于使用双冷核燃料棒来提高冷却性能并获得高燃烧和高输出功率，因此每个核燃料棒的外径增加 相邻的核燃料棒变窄，因此不可能使用现有的间隔栅格。 间隔栅格是单元网格带的组合，每个网格带都具有支撑，用于支撑以窄阵列设置的每个核燃料棒，并且具有彼此组合的片状。 支撑件位于从每个单元格栅带的纵向中心线向子通道移位的位置。