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51. 发明申请

US20140376681A1 NUCLEAR FUEL ASSEMBLY HAVING A SPACER GRID WITH ONE OR MORE SEAMLESS CORNERS 有权
标题翻译：具有一个或多个无缝角的间隙网的核燃料组件
公开(公告)号：US20140376681A1
公开(公告)日：2014-12-25
申请号：US13922629
申请日：2013-06-20
申请人： Westinghouse Electric Company
发明人： Jason A. Walters
IPC分类号： G21C3/352
CPC分类号： G21C3/352 , G21C3/356 , Y02E30/40
摘要： A nuclear fuel assembly grid that has fuel rod support features that take up a substantial portion of the width of the corner fuel rod support cells. The nuclear fuel assembly grid has an outer strap that is joined around a corner of the grid to another outer strap segment and a mating inner strap end at the intersection with the inner strap. The juncture accommodates the width of the rod support feature, enables grid-to-grid anti-snag capabilities and facilitates the use of longitudinal feed materials and dies.
摘要翻译：具有燃料棒支撑特征的核燃料组件网格，其占据角燃料棒支撑单元的宽度的相当大的一部分。核燃料组合栅格具有外部带，其围绕栅格的角部连接到另一个外部带段，并且在与内部带的交叉处具有配合的内部带端。该接合处适应杆支撑特征的宽度，使得能够实现格栅到网格的抗锯齿能力并且便于使用纵向进给材料和模具。

52. 发明授权

US08867693B2 Rod spacer grid for a nuclear fuel assembly, and a corresponding assembly 有权
标题翻译：用于核燃料组件的杆间隔栅格，以及相应的组件
公开(公告)号：US08867693B2
公开(公告)日：2014-10-21
申请号：US11791915
申请日：2005-10-27
申请人： Pascal Burfin , Michel Bonnamour , Gilles Margier , Jürgen Stabel-Weinheimer , Mingmin Ren
发明人： Pascal Burfin , Michel Bonnamour , Gilles Margier , Jürgen Stabel-Weinheimer , Mingmin Ren
IPC分类号： G21C3/34 , G21C3/352
CPC分类号： G21C3/34 , G21C3/352 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
摘要： A grid (13) for supporting nuclear fuel pencils (3) for a nuclear fuel assembly (1) comprising a peripheral belt (17), the peripheral belt (17) comprising on at least one of its edges (35, 37) guide fins (33) is disclosed. The edge (35, 37) of the peripheral belt (17) has between the adjacent guide fins (33) recesses (39) towards the inside of the grid (13). The invention is applicable, for example, to pressurized water reactors.
摘要翻译：一种用于支撑用于核燃料组件（1）的核燃料铅笔（3）的格栅（13），其包括周边带（17），所述周边带（17）在其至少一个边缘（35,37）上包括引导翅片（33）。周边带（17）的边缘（35,37）在相邻的引导翅片（33）凹部（39）之间朝向格栅（13）的内部。本发明可应用于例如压水反应堆。

53. 发明申请

US20140056398A1 STRIP FOR A NUCLEAR FUEL ASSEMBLY SPACER GRID 有权
标题翻译：用于核燃料组件间隔网的条
公开(公告)号：US20140056398A1
公开(公告)日：2014-02-27
申请号：US13822510
申请日：2012-05-18
申请人： Michael Liebler , Bernd Dressel , Kevin Elliott , William D. Bishop , Jeffrey C. Morris
发明人： Michael Liebler , Bernd Dressel , Kevin Elliott , William D. Bishop , Jeffrey C. Morris
IPC分类号： G21C3/356 , G21C3/352
CPC分类号： G21C3/3563 , G21C3/322 , G21C3/352 , Y02E30/40
摘要： The strip is of the type comprising a wall portion for delimiting a cell with interlaced strips, a spring formed in the strip and provided on the wall portion for biasing a fuel rod extending through the cell away from the wall portion, the spring comprising a cantilevered tab formed in the strip and a contact portion formed at least partially in the tab and protruding from the tab for contacting a fuel rod received in the cell.
摘要翻译：所述条带是包括用于限定具有交错条带的电池的壁部分的类型，形成在所述条带中并设置在所述壁部分上以用于偏置延伸穿过所述电池的燃料棒远离所述壁部分的弹簧的弹簧，所述弹簧包括悬臂突出部，其形成在所述突片中并且至少部分地形成在所述突片中并从所述突片突出以接触容纳在所述电池中的燃料棒。

54. 发明申请

US20140016735A1 SPACER AND A FUEL UNIT FOR A NUCLEAR PLANT 有权
标题翻译：一个核电厂的间隔器和一个燃料单元
公开(公告)号：US20140016735A1
公开(公告)日：2014-01-16
申请号：US13972412
申请日：2013-08-21
申请人： Westinghouse Electric Sweden AB
发明人： Sture Helmersson , Leif Larsson , Olov Nylund , Hakan Soderberg
IPC分类号： G21C3/34
CPC分类号： G21C3/34 , G21C3/322 , G21C3/348 , G21C3/352 , G21Y2002/201 , G21Y2002/301 , G21Y2002/303 , G21Y2002/304 , G21Y2004/40 , Y02E30/38
摘要： A spacer for holding fuel rods includes cells formed by a sleeve having an upper edge and a lower edge and a number of abutment surfaces. The lower edge has a wave shape with wave peaks aligned with a respective one of the abutment surfaces, and wave valleys located between two adjacent ones of the abutment surfaces. The upper edge has a wave shape with wave peaks, which are aligned with a respective one of the abutment surfaces, and wave valleys located between two adjacent ones of the abutment surfaces. Each of the abutment surfaces extend from a respective one of the wave peaks of the upper edge to a respective one of the wave peaks of the lower edge. The sleeves abut each other in the spacer along respective connection areas to make the abutment surfaces rotatable with respect to a center point of the connection area.
摘要翻译：用于保持燃料棒的间隔件包括由具有上边缘和下边缘以及多个邻接表面的套筒形成的单元。下边缘具有波形，其波峰与相应的一个邻接表面对准，波谷位于相邻的邻接表面之间。上边缘具有波峰形状，其波峰与相应的一个邻接表面对准，波谷位于两个相邻的邻接表面之间。每个邻接表面从上缘的相应一个波峰延伸到下边缘的相应波峰之一。套筒在间隔件中沿相应的连接区域彼此邻接，以使邻接面能够相对于连接区域的中心点旋转。

55. 发明申请

US20130230133A1 ADVANCED GRID SPACER DESIGN FOR A NUCLEAR FUEL ASSEMBLY 有权
标题翻译：用于核燃料组件的高级格栅间隙设计
公开(公告)号：US20130230133A1
公开(公告)日：2013-09-05
申请号：US13783426
申请日：2013-03-04
申请人： China Nuclear Power Technology Research Institute , CHINA GUANGDONG NUCLEAR POWER HOLDING
发明人： Wenchi Yu , Yuemin Zhou , Weicai Ll , Xiaoming Chen , Zhengzheng Pang , Jingwen Yan , Yan Guo
IPC分类号： G21C3/336
CPC分类号： G21C3/336 , G21C3/352 , G21C2003/3432 , Y02E30/40
摘要： A new, improved grid spacer for a nuclear fuel assembly is provided, comprising several straps which intersect each other alternatively to form a plurality of grid cells and fuel rods reside in some of the grid cells; the grid spacer further comprises mixing elements set at the corner of the grid cells in which the fuel rods have resided; wherein the mixing element comprises a mixing vane stretching towards the direction of the fuel rod and a flow funnel set on the bended edge of the mixing vane continuously and extending towards adjacent grid cells; the mixing vane and the flow funnel set across two sides of two adjacent grid cells respectively, and the flow funnel introduces the coolant in the grid cell at its side to the mixing vane, then the mixing vane introduces the coolant to the grid cell at its own side.
摘要翻译：提供了一种用于核燃料组件的新的改进的格栅间隔件，其包括多个彼此相交的带，以形成多个网格单元，并且燃料棒位于一些网格单元中; 栅格间隔物还包括设置在燃料棒所在的格栅单元角落处的混合元件; 其中所述混合元件包括朝向所述燃料棒的方向延伸的混合叶片和连续地设置在所述混合叶片的弯曲边缘上并朝向相邻格栅单元延伸的流道; 混合叶片和流动漏斗分别设置在两个相邻的格栅单元的两侧，流道将其侧面的格栅池中的冷却剂引入混合叶片，然后混合叶片将冷却剂引入其网格单元自己的一面

56. 发明授权

US08345815B2 Fuel assembly for a pressurized-water nuclear reactor 失效
标题翻译：用于加压水核反应堆的燃料组件
公开(公告)号：US08345815B2
公开(公告)日：2013-01-01
申请号：US12192764
申请日：2008-08-15
申请人： Jürgen Stabel , Udo Borsdorf
发明人： Jürgen Stabel , Udo Borsdorf
IPC分类号： G21C3/34
CPC分类号： G21C3/322 , G21C3/352 , G21Y2002/20 , G21Y2004/302 , Y02E30/38
摘要： A fuel assembly for a pressurized water nuclear reactor contains a multiplicity of fuel rods which are guided in a plurality of axially spaced spacers which in each case form a square grid, composed of grid webs, with a multiplicity of cells arranged in rows and columns. In each case one control rod guide tube is guided through a number of these cells. At least one spacer is configured to be mechanically stronger in a first partial region than in a second partial region. In this second partial region, the spacer is provided with at least one resisting element which protrudes into a flow sub-channel formed between the fuel rods and increases the flow resistance. The resisting element counteracts a reduction associated with the mechanically weaker configuration, in the flow resistance in the second partial region and in this manner effects a homogenization of the hydraulic behavior of a spacer which is mechanically inhomogeneous on account of the varying mechanical configuration.
摘要翻译：用于加压水核反应堆的燃料组件包含多个燃料棒，这些燃料棒在多个轴向隔开的间隔件中引导，每个间隔件在每种情况下形成由栅格网构成的方格栅格，多个单元以行和列排列。在每种情况下，一个控制棒引导管被引导通过若干这些细胞。至少一个间隔件构造成在第一部分区域中比在第二部分区域中机械地更强。在该第二部分区域中，间隔件设置有至少一个抵抗元件，该抵抗元件突出到形成在燃料棒之间的流动子通道中并增加流动阻力。抵抗元件抵消与机械较弱构造相关联的减小，在第二部分区域中的流动阻力中，并且以这种方式，由于变化的机械结构使得机械不均匀的间隔件的液压行为的均匀化。

57. 发明申请

US20120250814A1 NUCLEAR FUEL ASSEMBLY SUPPORT GRID 审中-公开
标题翻译：核燃料组件支持网
公开(公告)号：US20120250814A1
公开(公告)日：2012-10-04
申请号：US13074064
申请日：2011-03-29
申请人： Joonhyung Choi , Yu Chung Lee
发明人： Joonhyung Choi , Yu Chung Lee
IPC分类号： G21C3/356
CPC分类号： G21C3/3563 , G21C3/352 , Y02E30/40
摘要： A spacer grid for a nuclear fuel assembly that exhibits increased crush strength. Each grid strap at the ligaments that support fuel rods has a spring or dimple to support the fuel rods under anticipated external loads during shipping and handling or in a seismic event. One or more elongated embossed ribs are provided on each of the fuel rod grid strap support ligaments to increase its moment of inertia by forming various shapes on the ligaments of the grid strap. Preferably, the ribs have a streamlined shape to prevent any excessive pressure drop. In this manner, the crush strength of a conventional short grid strap is increased without meaningful additional manufacturing costs or adverse effects to the neutron economy of the grid.
摘要翻译：用于核燃料组件的间隔栅格，其展现出增加的压碎强度。在支撑燃料棒的韧带处的每个网格带具有弹簧或凹坑，以在运输和处理期间或在地震事件中在预期的外部载荷下支撑燃料棒。在每个燃料棒网格带支撑韧带上设置一个或多个细长压花肋，以通过在网格带的韧带上形成各种形状来增加其惯性矩。优选地，肋具有流线型的形状以防止任何过大的压降。以这种方式，传统的短网格带的压碎强度增加，而没有有意义的附加制造成本或对电网的中子经济的不利影响。

58. 发明授权

US07997471B2 Method for production of spacers for a nuclear reactor 有权
标题翻译：生产核反应堆隔板的方法
公开(公告)号：US07997471B2
公开(公告)日：2011-08-16
申请号：US12518368
申请日：2008-01-10
申请人： Håkan Söderberg , Thorbjörn Sahlin
发明人： Håkan Söderberg , Thorbjörn Sahlin
IPC分类号： B23K31/02
CPC分类号： G21C3/344 , G21C3/3424 , G21C3/352 , G21Y2002/302 , G21Y2004/40 , Y02E30/40 , Y10T29/49826 , Y10T29/49861 , Y10T29/531
摘要： A method for production of spacers to hold at least a number of elongated fuel rods (5) in a fuel unit (20) for placement in a re-actor (1) is described. The method comprises the steps of providing at least two spacers (30), to provide a set of mandrels (40) comprising a number of mandrels (42), to arrange at least two spacers (30) with one on top of the other on the set of mandrels (40), and to heat treat the spacers (30) when they are arranged on the set of mandrels (40) so that the cells (31) in the spacers (30) adapts to the mandrels (42).
摘要翻译：描述了一种用于制造间隔件以在燃料单元（20）中容纳至少多个细长的燃料棒（5）以放置在反作用器（1）中的方法。该方法包括以下步骤：提供至少两个间隔件（30），以提供包括多个心轴（42）的一组心轴（40），以将至少两个间隔件（30）布置在另一个顶部上所述一组心轴（40），并且当所述间隔物（30）布置在所述心轴组（40）上时，对所述间隔件（30）进行热处理，使得所述间隔件（30）中的所述单元（31）适应于所述心轴（42）。

59. 发明申请

US20110033020A1 HELICALLY FLUTED TUBULAR FUEL ROD SUPPORT 有权
标题翻译：有效流体管状燃油支撑
公开(公告)号：US20110033020A1
公开(公告)日：2011-02-10
申请号：US12538307
申请日：2009-08-10
申请人： XIAOYAN JANE JIANG
发明人： XIAOYAN JANE JIANG
IPC分类号： G21C3/34
CPC分类号： G21C3/352 , G21C3/322 , G21C3/3566 , Y02E30/38
摘要： A support grid for a nuclear fuel assembly, the fuel rod assembly having a generally cylindrical fuel rod with a diameter, wherein the support grid includes a frame assembly having a plurality of outer straps and a plurality of helical frame members. The helical frame members have a contact portion structured to contact an adjacent helical frame member and at least one helical fuel rod contact portion with a lesser diameter. The lesser diameter is generally equivalent to the fuel rod diameter such that a fuel rod disposed in the helical frame member would engage the inner helical frame member at helical fuel rod contact portion. The helical frame members are coupled to each other at the contact portions thereby forming a grid. The plurality of outer straps are disposed about the perimeter of the helical frame members.
摘要翻译：用于核燃料组件的支撑格栅，燃料棒组件具有直径为大致圆柱形的燃料棒，其中支撑格栅包括具有多个外带和多个螺旋框架构件的框架组件。螺旋框架构件具有被构造成接触相邻的螺旋框架构件和至少一个较小直径的螺旋燃料棒接触部分的接触部分。较小的直径通常等于燃料棒直径，使得设置在螺旋形框架构件中的燃料棒将以螺旋形燃料棒接触部分接合内部螺旋形框架构件。螺旋框架构件在接触部分处彼此联接，从而形成网格。多个外带围绕螺旋框架构件的周边设置。

60. 发明申请

US20110002436A1 NUCLEAR FUEL ASSEMBLY SUPPORT GRID 有权
标题翻译：核燃料组件支持网
公开(公告)号：US20110002436A1
公开(公告)日：2011-01-06
申请号：US12609259
申请日：2009-10-30
申请人： Yong (Roger) Lu , Xiaoyan (Jane) Jiang , Michael E. Conner , Paul M. Evans
发明人： Yong (Roger) Lu , Xiaoyan (Jane) Jiang , Michael E. Conner , Paul M. Evans
IPC分类号： G21C3/34
CPC分类号： G21C3/322 , G21C3/352 , G21C3/3563 , Y02E30/38
摘要： A nuclear fuel assembly support grid formed from an array of a plurality of orthogonally arranged straps in an egg-crate configuration with angled trailing and/or leading edges that are designed to break the correlation of vortices shed from the edges of the grid straps by varying the phase of the vortices to avoid resonant vibration of the straps.
摘要翻译：一种核燃料组件支撑格栅，其由具有成角度的尾部和/或前缘的多个正交排列的带状排列的阵列形成，其具有成角度的后缘和/或前缘，其被设计成通过改变从网格带的边缘脱落的涡流的相关性涡流的相位，以避免带的共振振动。

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