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1. 发明授权

US10020079B2 Core of light water reactor and fuel assembly 有权
公开(公告)号：US10020079B2
公开(公告)日：2018-07-10
申请号：US14695214
申请日：2015-04-24
申请人： HITACHI-GE NUCLEAR ENERGY, LTD.
发明人： Renzo Takeda , Junichi Miwa , Kumiaki Moriya
IPC分类号： G21C3/328 , G21C5/00 , G21C19/44 , G21C1/08 , G21C3/42 , G21C5/02
CPC分类号： G21C3/328 , G21C1/084 , G21C3/42 , G21C5/00 , G21C5/02 , G21C19/44 , Y02E30/38 , Y02W30/882
摘要： A core of a light water reactor has a plurality of fuel assemblies. The fuel assemblies include a plurality of fuel rods in which a lower end is supported by a lower tie-plate and an upper end is supported by an upper tie-plate. The fuel rods form plenums above a nuclear fuel material zone and have a neutron absorbing material filling zone under the nuclear fuel material zone. Neutron absorbing members attached to the upper tie-plate are disposed between mutual plenums of the neighboring fuel rods above the nuclear fuel material zone. The neutron absorbing members have a length of 500 mm and are positioned at a distance of 300 mm from the nuclear fuel material zone. Even if the overall core is assumed to become a state of 100% void, no positive reactivity is inserted to the core.

2. 发明授权

US09799414B2 Nuclear fuel bundle containing thorium and nuclear reactor comprising same 有权
公开(公告)号：US09799414B2
公开(公告)日：2017-10-24
申请号：US13819999
申请日：2010-09-03
申请人： Mustapha Boubcher , Sermet Kuran , Cathy Cottrell , Robert R. Bodner , Holly Bruce Hamilton , Bronwyn H. Hyland , Benoit Arsenault
发明人： Mustapha Boubcher , Sermet Kuran , Cathy Cottrell , Robert R. Bodner , Holly Bruce Hamilton , Bronwyn H. Hyland , Benoit Arsenault
IPC分类号： G21C3/60 , G21C3/326 , G21C3/328 , G21C3/58
CPC分类号： G21C3/326 , G21C3/328 , G21C3/58 , G21C2003/3265 , Y02E30/38
摘要： Fuel bundles for a nuclear reactor are disclosed, and in some embodiments include a first fuel element including thorium dioxide; a second fuel element including uranium having a first fissile content; and a third fuel element including uranium having a second fissile content different from the first fissile content. Nuclear reactors using such fuel bundles are also disclosed, including pressurized heavy water nuclear reactors. The uranium having the different fissile contents can include combinations of natural uranium, depleted uranium, recycled uranium, slightly enriched uranium, and low enriched uranium.

3. 发明申请

US20150155059A1 PRESSURE-TUBE NUCLEAR REACTOR WITH A LOW PRESSURE MODERATOR AND FUEL CHANNEL ASSEMBLY 审中-公开
标题翻译：带低压调节器和燃油通道总成的压力管核反应堆
公开(公告)号：US20150155059A1
公开(公告)日：2015-06-04
申请号：US14407511
申请日：2013-06-13
申请人： ATOMIC ENERGY OF CANADA LIMITED / ÉNERGIE ATOMIQUE DU CANADA LIMITÉE
发明人： Metin Yetisir , Michel Gaudet , David Bruce Rhodes , James Mitchell King , William T. Diamond , Jintong Li
IPC分类号： G21C3/322 , G21C13/02
CPC分类号： G21C3/322 , G21C1/08 , G21C1/20 , G21C3/32 , G21C3/324 , G21C3/328 , G21C3/336 , G21C5/12 , G21C13/02 , G21C15/06 , G21C15/22 , G21C15/28 , Y02E30/38
摘要： A fuel channel assembly for a nuclear reactor may include an inner conduit received within an outer conduit that has an outer upper end connectable to a coolant outlet and an outer lower end. The inner conduit may have an inner upper end connectable to a coolant source and an inner lower end axially spaced apart from the inner upper end and disposed within the outer conduit to enable coolant to circulate from the coolant source to the coolant outlet through both the inner and outer conduits. A fuel bundle chamber may be between an inner surface of the outer conduit and an outer surface of the inner conduit and may at least partially laterally surround the inner conduit. The fuel bundle chamber fluidly connecting the inner lower end and the outer upper end to enable the coolant to flow upward through the fuel bundle chamber.
摘要翻译：用于核反应堆的燃料通道组件可以包括容纳在外导管内的内导管，其具有可连接到冷却剂出口的外上端和外下端。内部管道可以具有可连接到冷却剂源的内部上端和与内部上端轴向间隔开的内部下端，并且设置在外部管道内，以使得冷却剂能够使冷却剂从冷却剂源通过内部的内部和外部管道。燃料束室可以在外管道的内表面和内管道的外表面之间，并且可以至少部分地侧向围绕内管道。燃料束室流体连接内下端和外上端，以使冷却剂能够向上流过燃料束室。

4. 发明授权

US08599991B2 Boiling water reactor, core of boiling water reactor and fuel assembly 有权
标题翻译：沸水反应堆，沸水堆芯和燃料组件
公开(公告)号：US08599991B2
公开(公告)日：2013-12-03
申请号：US12018986
申请日：2008-01-24
申请人： Renzo Takeda , Junichi Miwa , Kumiaki Moriya
发明人： Renzo Takeda , Junichi Miwa , Kumiaki Moriya
IPC分类号： G21C5/02 , G21C15/00 , G21C5/00
CPC分类号： G21C1/084 , G21C3/328 , G21C5/00 , G21C2003/3262 , G21Y2002/201 , G21Y2002/304 , G21Y2002/60 , G21Y2004/10 , G21Y2004/30 , G21Y2004/403 , Y02E30/31 , Y02E30/38
摘要： A boiling water reactor has a core disposed in the reactor pressure vessel and loaded with a plurality of fuel assemblies including transuranic nuclides. A ratio of Pu-239 in all of the transuranic nuclides included in the fuel assembly, which is loaded in the core, with a burnup of 0 is 3% or more but 45% or less. In the fuel assembly having a channel box and a plurality of fuel rods disposed in the channel box, a transverse cross section of a fuel pellet in the fuel rod occupies 30% or more but 55% or less of a transverse cross section of a unit fuel rod lattice in the channel box.
摘要翻译：沸水反应器具有设置在反应堆压力容器中并装载有多个包括超铀核素的燃料组件的核心。包含在装载在核心中的燃料组件中的所有超铀核素中的Pu-239的比例为0，为3％以上且45％以下。在具有通道箱和设置在通道箱中的多个燃料棒的燃料组件中，燃料棒中的燃料芯块的横截面占据单元的横截面的30％以上但是55％以下燃料棒格在通道箱中。

5. 发明授权

US07480599B2 Single cycle and equilibrium fuel loading method and system to reduce cycle outage in a boiling water nuclear reactor 有权
标题翻译：单循环和平衡燃料加载方法和系统，以减少沸水核反应堆中的循环中断
公开(公告)号：US07480599B2
公开(公告)日：2009-01-20
申请号：US11617396
申请日：2006-12-28
申请人： William Earl Russell, II
发明人： William Earl Russell, II
IPC分类号： G06F17/10
CPC分类号： G21C3/328 , G21D3/001 , Y02E30/31 , Y02E30/38
摘要： A method for generating fuel loading data for a core in a nuclear reactor, wherein the core includes an array of fuel locations in the core, the method includes: defining an even cycle bundle shift map of fuel bundles to be shifted to another core location during an even fuel loading cycle; defining an odd cycle shift map of fuel bundles to be shifted to another core location during an odd loading cycle, wherein the odd cycle and even cycle are alternative and successive core refueling cycles; defining a discharge map identifying the another locations to receive the bundles from the locations identified in the even and odd cycle shift maps, and generating shuffling instructions indicating which fuel bundles from a prior fuel cycle are to be shifted to one of the another locations of the core for a subsequent fuel cycle, wherein bundles to be shifted during the even fuel loading cycle are selected from the fuel bundles to be shifted identified in the even cycle bundle shift map and bundles to be shifted during the odd fuel loading cycle are selected from the fuel bundles to be shifted identified in the odd cycle bundle shift map.
摘要翻译：一种用于产生核反应堆中的核心的燃料加载数据的方法，其中所述核心包括所述核心中的燃料位置阵列，所述方法包括：在所述核反应堆中定义要转移到另一核心位置的燃料束的均匀循环束位移图均匀的燃料加载循环; 定义在奇数加载循环期间要转移到另一个核心位置的燃料束的奇数循环移位图，其中奇数循环和偶数循环是备选和连续的核心加油循环; 定义放电图，其识别从偶数和奇数循环移位图中识别的位置接收束的另一个位置，以及产生指示来自先前燃料循环的哪些燃料束将被转移到其中一个位置的洗牌指令其中在均匀燃料加载循环期间要移动的束从在偶数循环束移位图中被识别的待转换的燃料束中选择，并且在奇数燃料加载循环期间从待排出的束中选择在奇数周期束位移图中移位识别的燃料束。

6. 发明授权

US07472045B2 Method for perturbating a nuclear reactor core fuel bundle design to generate a group of designs 有权
标题翻译：扰动核反应堆核心燃料束设计以产生一组设计的方法
公开(公告)号：US07472045B2
公开(公告)日：2008-12-30
申请号：US11610197
申请日：2006-12-13
申请人： Roland Otto Jackson , William Earl Russell, II
发明人： Roland Otto Jackson , William Earl Russell, II
IPC分类号： G06F17/10
CPC分类号： G21C3/328 , G21D3/001 , G21Y2002/302 , G21Y2004/30 , G21Y2004/40 , Y02E30/38
摘要： A method has been developed to select fuel rod enrichments for a fuel bundle of a nuclear reactor, the method including: creating an ordered list of fuel rod types in an initial fuel bundle design; perturbing at least a subset of the fuel rod types in the initial fuel bundle design to generate a plurality of perturbed fuel bundle designs; selecting perturbed fuel bundle designs having fuel rods with allowable fuel enrichment types and an allowable average enrichment for the perturbed bundle; determining a difference between each of the selected perturbed fuel bundle design and the initial fuel bundle design, and creating a group of the perturbed fuel bundle design having a difference less than a predetermined threshold difference value.
摘要翻译：已经开发了一种用于选择用于核反应堆的燃料束的燃料棒富集的方法，所述方法包括：在初始燃料束设计中创建燃料棒类型的有序列表; 在初始燃料束设计中扰乱燃料棒类型的至少一个子集以产生多个扰动的燃料束设计; 选择具有允许的燃料浓缩类型的燃料棒和用于扰动束的允许的平均浓缩的扰动燃料束设计; 确定所选择的扰动燃料束设计和初始燃料束设计中的每一个之间的差异，以及创建具有小于预定阈值差值的差的扰动燃料束设计的组。

7. 发明申请

US20080159462A1 SINGLE CYCLE AND EQUILIBRIUM FUEL LOADING METHOD AND SYSTEM TO REDUCE CYCLE OUTAGE IN A BOILING WATER NUCLEAR REACTOR 有权
标题翻译：单循环和平衡燃料装载方法和系统，以减少沸腾水核反应堆中的循环流失
公开(公告)号：US20080159462A1
公开(公告)日：2008-07-03
申请号：US11617396
申请日：2006-12-28
申请人： William Earl Russell
发明人： William Earl Russell
IPC分类号： G21C19/19
CPC分类号： G21C3/328 , G21D3/001 , Y02E30/31 , Y02E30/38
摘要： A method for generating fuel loading data for a core in a nuclear reactor, wherein the core includes an array of fuel locations in the core, the method includes: defining an even cycle bundle shift map of fuel bundles to be shifted to another core location during an even fuel loading cycle; defining an odd cycle shift map of fuel bundles to be shifted to another core location during an odd loading cycle, wherein the odd cycle and even cycle are alternative and successive core refueling cycles; defining a discharge map identifying the another locations to receive the bundles from the locations identified in the even and odd cycle shift maps, and generating shuffling instructions indicating which fuel bundles from a prior fuel cycle are to be shifted to one of the another locations of the core for a subsequent fuel cycle, wherein bundles to be shifted during the even fuel loading cycle are selected from the fuel bundles to be shifted identified in the even cycle bundle shift map and bundles to be shifted during the odd fuel loading cycle are selected from the fuel bundles to be shifted identified in the odd cycle bundle shift map.
摘要翻译：一种用于产生核反应堆中的核心的燃料加载数据的方法，其中所述核心包括所述核心中的燃料位置阵列，所述方法包括：在所述核反应堆中定义要转移到另一核心位置的燃料束的均匀循环束位移图均匀的燃料加载循环; 定义在奇数加载循环期间要转移到另一个核心位置的燃料束的奇数循环移位图，其中奇数循环和偶数循环是备选和连续的核心加油循环; 定义放电图，其识别从偶数和奇数循环移位图中识别的位置接收束的另一位置，并且产生指示来自先前燃料循环的哪些燃料束将被转移到其中一个的另一个位置的洗牌指令其中在均匀燃料加载循环期间要移动的束从在偶数循环束移位图中被识别的待转换的燃料束中选择，并且在奇数燃料加载循环期间从待排出的束中选择在奇数周期束位移图中移位识别的燃料束。

8. 发明授权

US06735267B2 Fuel assembly 失效
标题翻译：燃油组件
公开(公告)号：US06735267B2
公开(公告)日：2004-05-11
申请号：US10227441
申请日：2002-08-26
申请人： Akihito Orii , Junichi Koyama , Koji Nishida , Masao Chaki , Toru Kanazawa
发明人： Akihito Orii , Junichi Koyama , Koji Nishida , Masao Chaki , Toru Kanazawa
IPC分类号： G21C332
CPC分类号： G21C3/328 , G21Y2002/201 , G21Y2004/304 , Y02E30/38
摘要： A fuel assembly in accordance with the present invention comprises a plurality of first fuel rods and a plurality of second fuel rods having a length shorter than a length of the first fuel rod, and these two kinds of fuel rods are arranged in a fuel rod array of 10 rows by 10 columns. Two water rods are arranged in regions capable of arranging 8 fuel rods. The second fuel rods are not arranged in the outermost tier of the fuel rod array. Which satisfies the following conditions, that is, B≧60 (Equation 1) 15≦n≦20(n: integer) (Equation 2) Awr/Ach≦0.149 (Equation 3) Lp/Lf≧11/24 (Equation 4) Awr/Ach≧(3.00×10−4×n2+6.00×10−4×n−1.2×10−2)×(Lp/Lf−1)+1.75×10−1 (Equation 5) Awr/Ach≦(8.63×10−4×n2−6.09×10−2×n+1.33×10−1)×(Lp/Lf−8.32×10−1) (Equation 6) where Awr is a total sum of horizontal sectional areas of said water rods, Ach is a horizontal sectional area of a coolant flow passage in a bottom portion of said fuel assembly, Lf is an effective fuel length of said first fuel rod, n is number of said second fuel rods, Lp is an effective length of said second fuel rod, and B (GWd/t) is an average burn-up.
摘要翻译：根据本发明的燃料组件包括多个第一燃料棒和多个第二燃料棒，其长度短于第一燃料棒的长度，并且这两种燃料棒被布置在燃料棒阵列 10行×10列。在能够布置8个燃料棒的区域中布置两个水棒。第二燃料棒不配置在燃料棒阵列的最外层。其满足以下条件，即，Awr是所述水棒的水平截面积的总和，Ach是所述燃料组件的底部中的冷却剂流动通道的水平截面面积，Lf是有效燃料长度的所述第一燃料棒的数量，n是所述第二燃料棒的数量，Lp是所述第二燃料棒的有效长度，B（GWd / t）是平均燃耗。

9. 发明申请

US20020136348A1 Fuel assembly 有权
标题翻译：燃油组件
公开(公告)号：US20020136348A1
公开(公告)日：2002-09-26
申请号：US10156798
申请日：2002-05-30
发明人： Atsuya Hirano , Satoshi Kanno , Makoto Irube , Hideki Kurosaki , Yasuhiro Aizawa , Takashi Fukumoto
IPC分类号： G21C003/34
CPC分类号： G21C3/344 , G21C3/326 , G21C3/328 , G21C3/356 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , Y02E30/31 , Y02E30/38
摘要： A fuel assembly having a plurality of fuel rods arranged in a square lattice array. The fuel rods include a plurality of short-length fuel rods each having a fuel active length shorter than that of each of remaining ones of the fuel rods. At least one water rod is arranged in a region in which one or more of the fuel rods are arrangeable in the array, and a plurality of fuel spacers are provided at a plurality of positions in the axial direction for holding the plurality of fuel rods and the at least one water rod, with mutual radial intervals therebetween being kept immovable. The plurality of short-length fuel rods include at least one first short-length fuel rod arranged in the outermost peripheral region of the square lattice array. Each of the plurality of fuel spacers include a plurality of cylindrical members.
摘要翻译：一种燃料组件，具有以正方形格子阵列排列的多个燃料棒。燃料棒包括多个长度短的燃料棒，每个燃料棒的燃料活性长度短于燃料棒中的剩余燃料棒的燃料活性长度。至少一个水杆布置在其中一个或多个燃料棒可排列成阵列的区域中，并且在轴向上的多个位置处设置多个燃料间隔件，用于保持多个燃料棒，所述至少一个水杆在其间具有相互径向的间隔保持不动。多个短长度燃料棒包括布置在正方格子阵列的最外围区域中的至少一个第一短路燃料棒。多个燃料间隔件中的每一个包括多个圆柱形构件。

10. 发明申请

US20020075988A1 FUEL ASSEMBLY 有权
标题翻译：燃油总成
公开(公告)号：US20020075988A1
公开(公告)日：2002-06-20
申请号：US09245899
申请日：1999-02-08
发明人： ATSUYA HIRANO , SATOSHI KANNO , MAKOTO IRUBE , HIDEKI KUROSAKI , YASUHIRO AIZAWA , TAKASHI FUKUMOTO
IPC分类号： G21C003/34
CPC分类号： G21C3/344 , G21C3/326 , G21C3/328 , G21C3/356 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , Y02E30/31 , Y02E30/38
摘要： Disclosed is a fuel assembly, particularly, a fuel assembly including short-length fuel rods and fuel spacers, used for a boiling water reactor, which is capable of sufficiently reducing the pressure loss of at least one, of the fuel spacers, positioned upward from the upper ends of the short-length fuel rods irrespective of arrangement of the short-length fuel rods, and also ensuring the structural strength of the fuel spacer. The fuel assembly includes fuel rods located in a square lattice array, two water rods arranged in a region in which seven pieces of the fuel rods are arrangeable, two fuel spacers for holding the fuel rods and the water rods with mutual intervals kept immovable. Each of the fuel spaces includes cells which are connected to each other and in which the fuel rods are to be inserted respectively, and a band for surrounding the outermost peripheries of the cells. The short-length fuel rods include four first short-length fuel rods arranged in the outermost peripheral region of the square lattice array. One of the fuel spacers, positioned upward from the upper ends of the short-length fuel rods, is configured such that the cells located at lattice positions associated with the first short-length fuel rods are removed and instead supporting members, each being adapted to connect two pieces of the cells adjacently located of both the sides of each of the above lattice positions in the outermost peripheral region to the band, are provided at the above lattice positions.
摘要翻译：公开了一种燃料组件，特别是包括用于沸水反应器的短长度燃料棒和燃料间隔件的燃料组件，该燃料组件能够充分降低至少一个燃料间隔件的压力损失，短长度燃料棒的上端，而不管短长度燃料棒的布置，并且还确保燃料间隔件的结构强度。燃料组件包括位于正方形格子阵列中的燃料棒，布置在七个燃料棒可布置的区域中的两个水棒，用于保持燃料棒的两个燃料间隔件和保持不动的相互间隔的水杆。每个燃料空间包括彼此连接并且其中分别插入燃料棒的电池和用于围绕电池的最外周的带。短长度燃料棒包括布置在正方形格子阵列的最外围区域中的四个第一短长度燃料棒。燃料间隔件中的一个位于距离短的燃料棒的上端上方的位置，使得位于与第一短长度燃料棒相关联的格子位置处的电池被移除，并且代替支撑构件将位于最外围区域中的每个上述格子位置的两侧的相邻的单元的两个单元连接到上述格子位置。

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