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1. 发明申请

US20180268948A1 THERMAL-NEUTRON REACTOR CORE AND DESIGN METHOD FOR THERMAL-NEUTRON REACTOR CORE 审中-公开
公开(公告)号：US20180268948A1
公开(公告)日：2018-09-20
申请号：US15921891
申请日：2018-03-15
申请人： Kabushiki Kaisha Toshiba , Toshiba Energy Systems & Solutions Corporation
发明人： Rei KIMURA , Satoshi Wada , Haruka Kajiwara , Ryosuke Miura
IPC分类号： G21C3/326 , G21C3/07 , G21C3/28 , G21C7/04
CPC分类号： G21C3/326 , G21C3/00 , G21C3/07 , G21C3/28 , G21C5/02 , G21C5/12 , G21C7/04 , G21C11/06 , Y02E30/39
摘要： A thermal-neutron reactor core includes: a solid moderator expanding to a lengthwise direction; a fuel in the moderator, parallel to the lengthwise direction of the moderator, the fuel containing a fissile material; a cooling tube parallel to the lengthwise direction of the moderator; and a plurality of kinds of burnable poison included in the fuel. The may contain a metal hydride. Furthermore, the plurality of kinds of burnable poison may include one burnable poison containing a concentration of one particular isotope of that one burnable poison.

2. 发明申请

US20180254111A1 FUEL ASSEMBLY 审中-公开
公开(公告)号：US20180254111A1
公开(公告)日：2018-09-06
申请号：US15900071
申请日：2018-02-20
申请人： THORIUM POWER, INC.
发明人： Sergey Mikhailovich Bashkirtsev , Valentin Fedorovich Kuznetsov , Valery Vladimirovich Kevrolev , Alexey Glebovich Morozov , Michael H. Montgomery
IPC分类号： G21C3/08 , G21C3/64 , G21C3/322 , G21C3/326 , G21C3/60 , G21C21/10 , G21C21/02 , G21C3/06
CPC分类号： G21C3/08 , G21C3/06 , G21C3/322 , G21C3/326 , G21C3/3265 , G21C3/60 , G21C3/64 , G21C21/02 , G21C21/10 , Y02E30/38 , Y10T29/49826
摘要： Nuclear fuel assemblies include fuel elements that are sintered or cast into billets and co-extruded into a spiral, multi-lobed shape. The fuel kernel may be a metal alloy of metal fuel material and a metal-non-fuel material, or ceramic fuel in a metal non-fuel matrix. The fuel elements may use more highly enriched fissile material while maintaining safe operating temperatures. Such fuel elements according to one or more embodiments may provide more power at a safer, lower temperature than possible with conventional uranium oxide fuel rods. The fuel assembly may also include a plurality of conventional UO2 fuel rods, which may help the fuel assembly to conform to the space requirements of conventional nuclear reactors.

3. 发明授权

US10037823B2 Fuel assembly 有权
公开(公告)号：US10037823B2
公开(公告)日：2018-07-31
申请号：US13695792
申请日：2011-05-11
申请人： Sergey Mikhailovich Bashkirtsev , Valentin Fedorovich Kuznetsov , Valery Vladimirovich Kevrolev , Alexey Glebovich Morozov
发明人： Sergey Mikhailovich Bashkirtsev , Valentin Fedorovich Kuznetsov , Valery Vladimirovich Kevrolev , Alexey Glebovich Morozov , Michael H. Montgomery
IPC分类号： G21C3/08 , G21C3/322 , G21C3/326 , G21C3/60 , G21C3/64 , G21C21/10 , G21C21/02 , G21C3/06
CPC分类号： G21C3/08 , G21C3/06 , G21C3/322 , G21C3/326 , G21C3/3265 , G21C3/60 , G21C3/64 , G21C21/02 , G21C21/10 , Y02E30/38 , Y10T29/49826
摘要： A fuel assembly for use in a core of a nuclear power reactor. The fuel assembly can include a frame and a plurality of elongated, extruded fuel elements supported by the frame. The frame can include a lower nozzle that is shaped and configured to mount to an internal core structure of the nuclear power reactor. Each of the fuel elements can include a fuel kernel having fuel material disposed in a matrix of metal non-fuel material, the fuel material including fissile material, and a cladding surrounding the fuel kernel. The fuel assembly can have a moderator: fuel ratio in a region of the fuel elements of 2.4 or less.

4. 发明授权

US09899107B2 Rod assembly for nuclear reactors 有权
公开(公告)号：US09899107B2
公开(公告)日：2018-02-20
申请号：US12879612
申请日：2010-09-10
申请人： Russell Patrick Higgins , Vernon W. Mills , David Grey Smith , Gerald Anthony Luciano , Roger Howard Van Slyke , William Earl Russell, II , Bradley D. Bloomquist
发明人： Russell Patrick Higgins , Vernon W. Mills , David Grey Smith , Gerald Anthony Luciano , Roger Howard Van Slyke , William Earl Russell, II , Bradley D. Bloomquist
IPC分类号： G21C3/04 , G21G1/02 , G21C3/02
CPC分类号： G21C3/04 , G21C3/02 , G21C3/16 , G21C3/326 , G21G1/02 , Y02E30/38
摘要： One embodiment provides a multi-segment rod that includes a plurality of rod segments. The rod segments are removably mated to each other via mating structures in an axial direction. An irradiation target is disposed within at least one of the rod segments, and at least a portion of at least one mating structure includes one and/or more combinations of neutron absorbing materials.

5. 发明授权

US09583223B2 Nuclear reactor core loading and operation strategies 有权
标题翻译：核反应堆核心装载和作战策略
公开(公告)号：US09583223B2
公开(公告)日：2017-02-28
申请号：US13531514
申请日：2012-06-23
申请人： Gregory J. Pearson , Atul A. Karve
发明人： Gregory J. Pearson , Atul A. Karve
IPC分类号： G21C19/00 , G21C3/326 , G21C19/20
CPC分类号： G21C3/326 , G21C19/205 , Y02E30/38
摘要： Cores include different types of control cells in different numbers and positions. A periphery of the core just inside the perimeter may have higher reactivity fuel in outer control cells, and lower reactivity cells may be placed in an inner core inside the inner ring. Cores can include about half fresh fuel positioned in higher proportions in the inner ring and away from inner control cells. Cores are compatible with multiple core control cell setups, including BWRs, ESBWRs, ABWRs, etc. Cores can be loaded during conventional outages. Cores can be operated with control elements in only the inner ring control cells for reactivity adjustment. Control elements in outer control cells need be moved only at sequence exchanges. Near end of cycle, reactivity in the core may be controlled with inner control cells alone, and control elements in outer control cells can be fully withdrawn.
摘要翻译：核心包括不同类型的不同数量和位置的对照细胞。刚好在周边内部的芯的周边可能在外部控制单元中具有更高的反应性燃料，并且较低的反应性单元可以放置在内圈内部的内芯中。核心可以包括位于内环中并且远离内部控制单元的较高比例的大约一半的新鲜燃料。内核与多个核心控制单元设置兼容，包括BWR，ESBWR，ABWR等。可以在常规中断期间加载内核。核心可以与内环控制电池中的控制元件一起操作，用于反应性调整。只有在顺序交换时才需要移动外部控制单元中的控制元素。在循环的近端，核心中的反应性可以单独用内部控制细胞控制，外部控制细胞中的控制元件可以被完全取出。

6. 发明申请

US20160099081A1 MODERATING FUEL RODS INCLUDING METAL HYDRIDE AND METHODS OF MODERATING FUEL BUNDLES OF BOILING WATER REACTORS USING THE SAME 有权
标题翻译：包括金属氢化物的现代燃料油缸及其使用的沸腾水反应堆燃油装置的方法
公开(公告)号：US20160099081A1
公开(公告)日：2016-04-07
申请号：US14508029
申请日：2014-10-07
申请人： John Christopher HANNAH , Gerald Dean KVAALL, JR.
发明人： John Christopher HANNAH , Gerald Dean KVAALL, JR.
IPC分类号： G21C5/02 , G21C3/02
CPC分类号： G21C5/02 , G21C3/04 , G21C3/326 , G21C5/12 , Y02E30/31 , Y02E30/38
摘要： A moderating fuel rod for a boiling water reactor may include a nuclear fuel section; a neutron moderator section including a metal hydride; and a threaded connector joining the nuclear fuel section and the neutron moderator section. By including one or more moderating fuel rods in a fuel bundle, the neutron moderation within the fuel bundle may be improved, thereby allowing energy to be more efficiently extracted from the entire length of the fuel bundle.
摘要翻译：用于沸水反应器的调节燃料棒可以包括核燃料部分; 包括金属氢化物的中子慢化器部分; 以及连接核燃料部分和中子调节器部分的螺纹连接器。通过在燃料束中包括一个或多个调节燃料棒，可以提高燃料束内的中子调节，从而能够从燃料束的整个长度更有效地提取能量。

7. 发明申请

US20140307844A1 Fuel rods having irradiation target end pieces 有权
公开(公告)号：US20140307844A1
公开(公告)日：2014-10-16
申请号：US12000828
申请日：2007-12-18
申请人： William Earl Russell, II , David Grey Smith
发明人： William Earl Russell, II , David Grey Smith
IPC分类号： G21C3/10
CPC分类号： G21G1/02 , G21C1/303 , G21C3/02 , G21C3/10 , G21C3/16 , G21C3/326 , G21G1/00 , G21Y2002/304 , G21Y2004/30 , Y02E30/38
摘要： Example embodiments are directed to a fuel rod having end pieces on either end containing irradiation targets. Example embodiment end pieces may contain materials that may be converted to desired isotopes when exposed to neutron flux encountered at the end piece position. Example embodiment end pieces may be fabricated from the materials or may otherwise house the materials. Example embodiment end pieces may mate with a variety of full-length and/or part-length fuel rods and may function as upper and/or lower end plugs, mating the fuel rods to upper and/or lower tie plates.

8. 发明申请

US20140211904A1 Heterogeneous Core Designs And Thorium Based Fuels For Heavy Water Reactors 审中-公开
标题翻译：用于重水反应堆的异质核心设计和基于钍的燃料
公开(公告)号：US20140211904A1
公开(公告)日：2014-07-31
申请号：US14154633
申请日：2014-01-14
申请人： ATOMIC ENERGY OF CANADA LIMITED
发明人： Blair P. Bromley
IPC分类号： G21C5/02
CPC分类号： G21C1/024 , G21C3/326 , G21C3/623 , Y02E30/34 , Y02E30/38
摘要： A channel type heterogeneous reactor core for a heavy water reactor for burnup of thorium based fuel is provided. The heterogeneous reactor core comprises at least one seed fuel channel region comprising seed fuel channels for receiving seed fuel bundles of thorium based fuel; and at least one blanket fuel channel region comprising blanket fuel channels for receiving blanket fuel bundles of thorium based fuel; wherein the seed fuel bundles have a higher percentage content of fissile fuel than the blanket fuel bundles. The seed fuel channel region and the blanket fuel channel region may be set out in a checkerboard pattern or an annular pattern within the heterogeneous reactor core. Fuel bundles for the core are also provided.
摘要翻译：提供了一种用于燃烧钍基燃料的重水反应器的通道型异相堆芯。所述非均质反应堆堆芯包括至少一个种子燃料通道区域，所述种子燃料通道区域包括用于接收基于钍的燃料的种子燃料束的种子以及至少一个橡皮布燃料通道区域，其包括用于接收钍基燃料的橡皮布燃料束的橡皮布燃料通道; 其中种子燃料束具有比橡皮布燃料束更高百分比的裂变燃料。种子燃料通道区域和橡皮布燃料通道区域可以以异质反应堆堆芯内的棋盘图案或环形图案设置。还提供了用于核心的燃料束。

9. 发明申请

US20130294563A1 FAST REACTOR AND FAST REACTOR REFLECTOR ASSEMBLY 审中-公开
标题翻译：快速反应器和快速反应器组件
公开(公告)号：US20130294563A1
公开(公告)日：2013-11-07
申请号：US13860645
申请日：2013-04-11
申请人： Kabushiki Kaisha Toshiba
发明人： Akito NAGATA , Yasushi Tsuboi , Takanari Inatomi , Kouhei Tarutani , Tugio Yokoyama , Masatoshi Kawashima
IPC分类号： G21C7/28
CPC分类号： G21C7/28 , G21C1/022 , G21C3/326 , G21C7/06 , Y02E30/34 , Y02E30/38 , Y02E30/39
摘要： A fast reactor performing reflector control to control reactivity of the core by moving a neutron reflector in the vertical direction, including: a core fuel assembly; a neutron absorption assembly in the middle of the core fuel assembly; a reflector assembly at the circumference of the core fuel assembly; plural inner neutron shields at the circumference of the reflector assembly; a cylindrical core barrel surrounding entirety of the plural neutron shields; and a drive mechanism controlling the reflector. The reflector assembly includes: a reflector element that reflects neutrons from the core fuel assembly towards the core; a cavity section, arranged thereabove, that permits leakage of neutrons to outside the core; a linkage mechanism that links the reflector element and the cavity section; a guide tube that defines a space for removal/insertion of these; and a connecting section that connects the drive mechanism and the cavity section.
摘要翻译：一种快速反应器，其执行反射器控制，以通过沿垂直方向移动中子反射器来控制核心的反应性，包括：核心燃料组件; 核心燃料组件中间的中子吸收组件; 在核心燃料组件的圆周处的反射器组件; 在反射器组件的圆周处的多个内部中子屏蔽; 围绕多个中子屏蔽体的整个圆筒形芯筒; 以及控制反射器的驱动机构。反射器组件包括：反射器元件，其将来自核心燃料组件的中子朝向芯体反射; 设置在其上方的空腔部分，其允许将中子泄漏到芯部外部; 连接所述反射器元件和所述空腔部分的连杆机构; 引导管，其限定用于移除/插入它们的空间; 以及连接驱动机构和空腔部的连接部。

10. 发明授权

US08571166B2 Core of light water reactor and fuel assembly 有权
标题翻译：轻水反应堆和燃料组件的核心
公开(公告)号：US08571166B2
公开(公告)日：2013-10-29
申请号：US13411091
申请日：2012-03-02
申请人： Renzo Takeda , Junichi Miwa , Kumiaki Moriya
发明人： Renzo Takeda , Junichi Miwa , Kumiaki Moriya
IPC分类号： G21C3/00
CPC分类号： G21C3/326 , G21C3/42 , G21C2003/3267 , Y02E30/38
摘要： A core of a light water reactor having a plurality of fuel assemblies, which are loaded in said core, having nuclear fuel material containing a plurality of isotopes of transuranium nuclides, an upper blanket zone, a lower blanket zone, and a fissile zone, in which the transuranium nuclides are contained, disposed between the upper blanket zone and the lower blanket zone, wherein a ratio of Pu-239 in all the transuranium nuclides contained in the loaded fuel assembly is in a range of 40 to 60% when burnup of the fuel assembly is 0, sum of a height of the lower blanket zone and a height of the upper blanket zone is in a range of 250 to 600 mm, and the height of said lower blanket zone is in a range of 1.6 to 12 times the height of the upper blanket zone.
摘要翻译：具有多个燃料组件的轻水反应堆的核心，其装载在所述芯体中，具有含有多个氮氧化物的多个同位素的核燃料材料，上覆层区域，下覆盖区域和裂变区域其中包含超氧化物核素，其设置在上覆盖区域和下覆盖层区域之间，其中，当燃烧所述载体燃料组件时，包含在所述负载的燃料组件中的所有经核素核素中的Pu-239的比例在40至60％的范围内燃料组件为0，下橡皮布区域的高度与上覆层区域的高度之和在250至600mm的范围内，并且所述下橡皮布区域的高度在1.6至12倍的范围内上层毯的高度。

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