公开(公告)号：US08693612B2

公开(公告)日：2014-04-08

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：US20100172460A1

公开(公告)日：2010-07-08

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：US06393087B1

公开(公告)日：2002-05-21

申请号：US09439713

申请日：1999-11-12

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

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

IPC分类号： G21C334

CPC分类号： G21C3/322 ,  G21C3/344 ,  G21C3/3566 ,  G21Y2002/201 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/38

摘要： A duct-type spacer grid for nuclear fuel assemblies is disclosed. In this spacer grid, a plurality of duct-shaped grid elements, individually having an octagonal cell, are closely arranged in parallel and are welded together, thus forming a matrix structure. The grid elements do not pass across the center of the subchannel of the assembly, thus effectively reducing pressure loss. Each of the grid elements is formed as an independent cell, and so they effectively resist against a lateral impact. A plurality of integral type swirl flow vanes, having different heights or same height, axially extend from the top of the grid to be positioned within each subchannel. The swirl flow vanes are bent outwardly, and so they do not contact the fuel rods during an insertion of the fuel rods into the cells. In the spacer grid, the fuel rods are supported within the cells by line contact springs without using any dimple. The spacer grid thus uniformly distributes its spring force on the fuel rods and almost completely prevents damage of the fuel rods due to fretting wear.

摘要翻译： 公开了一种用于核燃料组件的导管型间隔栅格。 在这种间隔栅格中，多个具有八边形单元格的管状栅格元件被平行地紧密排列并且被焊接在一起，从而形成矩阵结构。 网格元件不会穿过组件的子通道的中心，从而有效地减少压力损失。 每个栅格元件形成为独立的单元，因此它们有效抵抗横向冲击。 具有不同高度或相同高度的多个整体式涡流流动叶片从网格的顶部轴向延伸以定位在每个子通道内。 涡流流动叶片向外弯曲，因此在将燃料棒插入单元中时它们不接触燃料棒。 在间隔网格中，燃料棒通过线接触弹簧支撑在电池内，而不使用任何凹坑。 间隔栅格因此将其弹簧力均匀地分布在燃料棒上，并几乎完全防止由于微动磨损导致燃料棒的损坏。

公开(公告)号：US08243872B2

公开(公告)日：2012-08-14

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： G21C3/34

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。

公开(公告)号：US20100128835A1

公开(公告)日：2010-05-27

申请号：US12420874

申请日：2009-04-09

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

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

IPC分类号： G21C3/30

CPC分类号： G21C3/322 ,  G21C3/33 ,  Y02E30/38

摘要： An intermediate end plug assembly for a segmented fuel rod can stably support the fuel rod to the end of its cycle even if an interval between the fuel rods becomes narrow due to application of a dual-cooled fuel rod, and reduce excess vibration induced by flows of interior and exterior channels of the dual-cooled fuel rod for obtaining high burnup and output. To this end, the fuel rod has a segmented structure so as to make its length short. A lower intermediate end plug includes at least one channel hole, through which a coolant flows into an internal channel of the fuel rod, so that a possibility of causing departure from nuclear boiling ratio (DNBR) of the dual-cooled fuel rod is reduced.

摘要翻译： 用于分段燃料棒的中间端塞组件即使燃料棒之间的间隔由于施加双重冷却燃料棒而变窄，也可以稳定地将燃料棒支撑到其循环结束，并减少由流动引起的过量振动 的双冷却燃料棒的内部和外部通道，以获得高燃耗和输出。 为此，燃料棒具有分段结构以使其长度短。 下部中间端塞包括至少一个通道孔，冷却剂通过该通道孔流入燃料棒的内部通道，从而降低了双重冷却燃料棒的核沸腾比（DNBR）的可能性。

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。

公开(公告)号：US06421407B1

公开(公告)日：2002-07-16

申请号：US09439714

申请日：1999-11-12

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

IPC分类号： G21C3352

CPC分类号： G21C3/352 ,  G21C3/322 ,  G21C3/3563 ,  G21Y2002/101 ,  G21Y2002/201 ,  G21Y2002/206 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/38

摘要： A nuclear fuel spacer grid, fabricated by intersecting a plurality of zircaloy or inconel grid strips and used for placing and supporting a plurality of elongated fuel rods within a nuclear fuel assembly, is disclosed. In the spacer grid of this invention, each of the grid strips is not cut away to form separate springs or dimples for supporting the fuel rods, but has an axial slot extending from one end of each strip to a length. The grid strips are intersected at the slots prior to being welded together into a single grid structure at a welding tap formed at an outside end or a middle portion of each of the slots. Each of the grid strips also has a dipper-shaped coolant mixing vane, or a dipper vane, at each of the upper and lower ends thereof. The spacer grid thus maximizes the thermal hydraulic coolant mixing effect within a fuel assembly and stably supports the fuel rods within the assembly while improving the mechanical/structural strength of the assembly, such as a buckling strength.

摘要翻译： 公开了一种核燃料间隔栅格，其通过与多个锆石或铬镍铁合金网格条相交并用于在核燃料组件内放置和支撑多个细长燃料棒而制造。 在本发明的间隔栅格中，每个栅格条不被切除以形成用于支撑燃料棒的单独的弹簧或凹坑，而是具有从每个条的一端延伸到一定长度的轴向槽。 在形成在每个槽的外部端部或中间部分处的焊接接头处，将栅格条在焊缝之间相互焊接在一起成为单个格栅结构。 每个格栅条在其上端和下端的每一端还具有杓形冷却剂混合叶片或杓形叶片。 间隔网格因此使燃料组件内的热液压冷却剂混合效果最大化并且在改善组件的机械/结构强度（例如屈曲强度）的同时，稳定地支撑组件内的燃料棒。

公开(公告)号：US06236702B1

公开(公告)日：2001-05-22

申请号：US09121930

申请日：1998-07-24

申请人： Tae-Hyun Chun ,  Dong-Seok Oh ,  Wang-Kee In ,  Kee-Nam Song ,  Heung-Seok Kang ,  Kyung-Ho Yoon ,  Dae-Ho Kim ,  Je-Geon Bang ,  Youn-Ho Jung

发明人： Tae-Hyun Chun ,  Dong-Seok Oh ,  Wang-Kee In ,  Kee-Nam Song ,  Heung-Seok Kang ,  Kyung-Ho Yoon ,  Dae-Ho Kim ,  Je-Geon Bang ,  Youn-Ho Jung

IPC分类号： G21C334

CPC分类号： G21C3/322 ,  G21C2003/3432 ,  Y02E30/38

摘要： A fuel assembly spacer grid including swirl deflectors respectively arranged at interconnections between interconnecting longitudinally and laterally-extending straps on upper ends of the interconnecting straps adapted to support fuel elements of a nuclear fuel assembly. Each of the swirl deflectors has four vanes bent to have an air vane shape. By virtue of this configuration, an improvement in the efficiency of the spacer grid cooling the fuel elements. The spacer grid also includes springs each configured to generate not only a main spring force caused by a displacement of the spring occurring when the spring comes into contact with a fuel element placed in a reactor core, but also an additional spring force caused by hydraulic pressure applied to the spring. Each spring, which is in a fixed state at one end thereof, has a free bent portion at the other end. By virtue of such a spring configuration, it is possible to compensate for a reduction in the initial spring force of the spring resulting from a change in the property of the spring material. The spring has a curved contact portion configured in such a manner that it is in conformal surface contact with a circumferential surface of the fuel element, thereby enhancing vibration suppressing and abrasion resistance forces.

摘要翻译： 一种燃料组件间隔栅格，其包括分别布置在相互连接的相互连接的相互连接的相互连接的带状连接带的纵向和横向延伸的带上的涡流偏转器，其适于支撑核燃料组件的燃料元件。 每个涡旋导流器具有弯曲成具有气翼形状的四个叶片。 由于这种结构，间歇栅格的效率的提高使燃料元件冷却。 间隔网格还包括弹簧，每个弹簧被配置成不仅产生由弹簧与放置在反应堆芯中的燃料元件接触而发生的弹簧位移引起的主弹簧力，而且还产生由液压引起的附加弹簧力 适用于春天。 在其一端处于固定状态的每个弹簧在另一端具有自由弯曲部分。 由于这种弹簧构造，可以补偿弹簧材料的特性变化导致的弹簧的初始弹簧力的减小。 该弹簧具有弯曲的接触部，其配置成与燃料元件的周面呈保形面接触，从而增强振动抑制和耐磨损力。

公开(公告)号：US6167105A

公开(公告)日：2000-12-26

申请号：US208290

申请日：1998-12-08

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

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

IPC分类号： G21C3/352 ,  G21C3/356

CPC分类号： G21C3/352 ,  G21C3/3566 ,  G21Y2002/201 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/40

摘要： A spacer grid with H-springs for use in a nuclear reactor fuel assembly is disclosed. In the spacer grid, two sets of intersectional grid strips are arranged in sets at an angle to each other prior to being encircled by a plurality of perimeter strips, thus forming a plurality of four-walled cells individually placing and supporting an elongated fuel rod therein. A plurality of regularly spaced openings are formed on each of the grid strips and perimeter strips at portions corresponding to the cells. An H-shaped spring is set in each of the openings and has a specifically curved rib capable of being brought into conformal surface contact with a fuel rod placed in each of the cells. The H-shaped spring thus elastically supports the fuel rod. Two positioning dimples are provided on each of the strips at positions above and below each of the openings. The two positioning dimples are so specifically curved as to come into conformal surface contact with a fuel rod, thus elastically supporting the fuel rod in cooperation with the H-shaped springs.

摘要翻译： 公开了一种用于核反应堆燃料组件的具有H-弹簧的间隔栅格。 在间隔网格中，两组交叉格栅条在被多个周边条带包围之前彼此成角度地排成一组，从而形成多个四壁细胞，其中单独地将细长的燃料棒放置并支撑在其中 。 在与电池相对应的部分处，在每个栅格条和周边条上形成多个规则间隔的开口。 H形弹簧设置在每个开口中，并且具有能够与放置在每个电池中的燃料棒保持一致的表面接触的特定曲线的肋。 因此，H形弹簧弹性地支撑燃料棒。 在每个开口上方和下方的位置的每个条上设置两个定位凹坑。 两个定位凹坑被特别地弯曲成与燃料棒保持一致的表面接触，从而与H形弹簧协同地弹性地支撑燃料棒。

公开(公告)号：US08879684B2

公开(公告)日：2014-11-04

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： G21C3/352 ,  G21C3/34 ,  G21C3/356

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。