公开(公告)号：US20060045231A1

公开(公告)日：2006-03-02

申请号：US10932908

申请日：2004-09-02

申请人： Yu Lee ,  James Sparrow

发明人： Yu Lee ,  James Sparrow

IPC分类号： G21C3/34

CPC分类号： G21C3/3206 ,  G21C3/34 ,  G21Y2002/201 ,  G21Y2002/207 ,  G21Y2002/304 ,  G21Y2004/30 ,  Y02E30/40

摘要： An integral multilevel debris-catching system for a nuclear reactor fuel assembly having a lower protective grid incorporating laterally offset debris-catching arches at several elevations, extended solid fuel rod bottom end plugs and a bottom debris-filtering nozzle. Dimples and opposing opposite springs and the debris-trapping arches, which are spaced from the end plugs, are all located at elevations below the fuel cladding.

摘要翻译： 一种用于核反应堆燃料组件的集成多级碎片捕获系统，其具有在几个高度处并入横向偏移的碎屑捕获拱的下保护栅，延伸的固体燃料棒底端塞和底部碎屑过滤喷嘴。 与端塞隔开的凹坑和相对的相对的弹簧和碎屑捕获拱都位于燃料包层下方的高度处。

公开(公告)号：US20060222140A1

公开(公告)日：2006-10-05

申请号：US11098657

申请日：2005-04-04

申请人： Yuriy Aleshin ,  James Sparrow

发明人： Yuriy Aleshin ,  James Sparrow

IPC分类号： G21C3/32

CPC分类号： G21C3/356 ,  G21C3/322 ,  Y02E30/38

摘要： In a nuclear reactor fuel assembly structured to support at least one non-linear fuel rod, the nuclear reactor fuel assembly includes at least two support grids, a first support grid and a second support grid structured to support at least one fuel rod in a non-linear shape. Each support grid has a plurality of generally square cells and wherein the cells on the first support grid and the second support grid are generally vertically aligned. Each cell has a first side, a second side, a third side, and a fourth side. Each cell further has protrusions extending from each the cell sides, wherein the protrusions are selected from the group including a spring, a dimple or an extended dimple. A spring is always disposed opposite of a dimple or an extended dimple. The first support grid includes at least one cell having an extended dimple extending from at least one cell side. The second support grid includes at least one cell aligned with the first support grid at least one cell having an extended dimple, wherein the second support grid cell has an extended dimple extending from a cell side other than cell side having an extended dimple on the first support grid. Thus, the extended dimples cause the fuel rod to be deformed.

摘要翻译： 在构造成支撑至少一个非线性燃料棒的核反应堆燃料组件中，所述核反应堆燃料组件包括至少两个支撑栅格，第一支撑栅格和第二支撑栅格，所述第二支撑栅格被构造成支撑至少一个燃料棒， 线形。 每个支撑格栅具有多个大致方形的单元，并且其中第一支撑格栅和第二支撑格栅上的单元大致垂直对齐。 每个单元具有第一侧，第二侧，第三侧和第四侧。 每个单元还具有从每个单元侧延伸的突起，其中突起从包括弹簧，凹坑或延伸的凹坑的组中选择。 春天总是与凹坑或延伸的凹坑相对放置。 第一支撑格栅包括至少一个具有从至少一个单元侧延伸的延伸凹部的单元。 第二支撑格栅包括与第一支撑格栅对准的至少一个单元，至少一个具有延伸凹坑的单元，其中第二支撑格栅单元具有从单元侧延伸的扩展凹坑，单元侧在第一 支持网格。 因此，延伸的凹坑导致燃料棒变形。

公开(公告)号：US20070036260A1

公开(公告)日：2007-02-15

申请号：US11189472

申请日：2005-07-26

申请人： Robert Fetterman ,  James Sparrow

发明人： Robert Fetterman ,  James Sparrow

IPC分类号： G21C7/06

CPC分类号： G21C7/10 ,  G21Y2002/104 ,  G21Y2002/201 ,  G21Y2002/206 ,  G21Y2002/304 ,  G21Y2004/30 ,  Y02E30/39

摘要： An advanced gray rod control assembly (GRCA) is for a nuclear reactor. The reactor has a plurality of fuel assemblies each including numerous elongated fuel rods supported in an organized array by substantially transverse support grids, and a plurality of guide thimbles disposed through the support grids and along the fuel rods. The GRCA includes a spider assembly structured to provide controlled insertion of gray rod assemblies within the thimbles of the fuel assembly, thereby controlling the rate of power produced by the reactor. Each gray rod assembly includes an elongated tubular member, a first end plug, a second end plug, a substantially pure silver neutron-absorber disposed within the tubular member, and a support tube surrounding the neutron-absorber within the tubular member to resist silver-swelling. Delta-power of the reactor is improved by minimizing the exposed surface area of the absorber and distributing it among all of the rods of the GRCA.

摘要翻译： 先进的灰棒控制组件（GRCA）用于核反应堆。 反应器具有多个燃料组件，每个燃料组件包括通过基本上横向的支撑网格以有组织的阵列支撑的许多细长的燃料棒，以及穿过支撑格栅并沿着燃料棒设置的多个导向套管。 GRCA包括构造成在燃料组件的套管内提供控制插入灰棒组件的蜘蛛组件，从而控制由反应器产生的功率速率。 每个灰色杆组件包括细长的管状构件，第一端塞，第二端塞，设置在管状构件内的基本上纯的中子吸收器，以及围绕管状构件内的中子吸收体的支撑管， 肿胀。 通过最小化吸收器的暴露表面积并将其分布在GRCA的所有棒中来改善反应器的三角形功率。

公开(公告)号：US20070165766A1

公开(公告)日：2007-07-19

申请号：US11332058

申请日：2006-01-13

申请人： Yuriy Aleshin ,  James Sparrow ,  Keith Drudy

发明人： Yuriy Aleshin ,  James Sparrow ,  Keith Drudy

IPC分类号： G21C3/34

CPC分类号： G21C3/32 ,  G21Y2002/104 ,  G21Y2002/206 ,  G21Y2002/303 ,  G21Y2002/304 ,  G21Y2004/30 ,  Y02E30/40

摘要： The present invention provides novel fuel assemblies for use with PWR nuclear reactors and power plants, and in particular, VVER nuclear reactors. The fuel assemblies offer enhanced structural stability, skeletal rigidity, and distortion (bow and twist) resistance to support high burn-up fuel management. Each fuel assembly may include a plurality of fuel rods, a plurality of control rods and guide thimbles, at least one instrumentation tube, and a plurality of grids. At least one fuel rod is replaced with a structural support replacement rod made from zirconium (Zr) alloy, stainless steel, or any other suitable material. The structural support replacement rod may be hollow or solid. The structural support replacement rods are preferably disposed at or about the periphery, and in some cases, the corners of the geometric array, which is preferably a hexagon or square.

摘要翻译： 本发明提供了用于PWR核反应堆和发电厂，特别是VVER核反应堆的新型燃料组件。 燃料组件提供增强的结构稳定性，骨架刚度和变形（弯曲和扭转）阻力，以支持高燃耗燃料管理。 每个燃料组件可以包括多个燃料棒，多个控制棒和引导套管，至少一个仪表管和多个网格。 使用由锆（Zr）合金，不锈钢或任何其他合适的材料制成的结构支撑置换杆代替至少一个燃料棒。 结构支撑置换杆可以是中空的或固体的。 结构支撑置换杆优选地设置在周边处或周围，并且在一些情况下设置在几何阵列的角部，其优选地是六边形或正方形。