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1. 发明授权

US11728055B2 System and method for performing active scanning of a nuclear fuel rod 有权
公开(公告)号：US11728055B2
公开(公告)日：2023-08-15
申请号：US17152008
申请日：2021-01-19
申请人： SHINE TECHNOLOGIES, LLC
发明人： Evan R. Sengbusch , Arne V. Kobernik , Eli C. Moll , Christopher M. Seyfert , Ross F. Radel , Mark Thomas , Jake Hecla
IPC分类号： G21C17/06 , G21G4/02 , G21C19/00 , G21B1/00 , G21C3/326
CPC分类号： G21C17/06 , G21C19/00 , G21G4/02 , G21B1/00 , G21C3/326
摘要： A system and method for performing active scanning on a nuclear fuel rod are provided. The system includes an electrically-driven neutron generator including an ion source, an accelerator, and a target; a moderator surrounding the neutron generator and configured to moderate neutrons generated by the neutron generator; a fuel rod channel disposed within the moderator, the fuel rod channel configured to receive a nuclear fuel rod and subject the nuclear fuel rod to a predetermined neutron flux; and a plurality of radiation detectors. When the nuclear fuel rod is subjected to the predetermined neutron flux, neutrons induce a secondary radiation of prompt and delayed gamma emissions, neutron emission, or a combination thereof that are detected by the plurality of radiation detectors to determine an amount of fissile material in the nuclear fuel rod and a spatial distribution of the fissile material along a length of the nuclear fuel rod.

2. 发明授权

US10643755B2 Device for passive protection of a nuclear reactor 有权
公开(公告)号：US10643755B2
公开(公告)日：2020-05-05
申请号：US15578950
申请日：2016-04-05
申请人： STATE ATOMIC ENERGY CORPORATION “ROSATOM” ON BEHALF OF THE RUSSIAN FEDERATION
发明人： Igor Sergeevich Slesarev , Viktor Nikolaevich Leonov , Boris Borisovich Kubintsev , Elena Aleksandrovna Rodina , Yuriy Vasilevich Chernobrovkin , Aleksey Borisovich Shevchenko
IPC分类号： G21C15/18 , G21C7/22 , G21C9/033 , G21C7/24 , G21C3/326
CPC分类号： G21C15/18 , G21C7/22 , G21C7/24 , G21C9/033 , G21C3/326 , Y02E30/39
摘要： The invention relates to nuclear reactor protection systems and can be used when building nuclear reactors, in particular, the fast neutron reactors. The Technical result of the invention consists in the expansion of 5 functional capabilities of the negative reactivity passive insertion device by securing its reliable actuation in various emergency conditions. The device has two vessels located in a common enclosure one under another with a ring-shape hollow space between the vessels and the enclosure to let the heat carrier flow. Fuel elements are located in the ring-shape hollow space, as well as the tooling for the heat carrier flow formation to cool the fuel elements and heat the upper vessel. The upper vessel is located above the reactor core and is divided with an internal partition wall to the central cylindrical and ring-shape hollow spaces. The partition wall has low thermal conductivity in the transverse direction. In the central hollow space of the upper vessel the cadmium isotope is mainly located, while in its ring-shape space—mercury. Lower vessel is mainly located in the active core of the reactor and filled with inert gas. The vessels and are connected with a pipe with a partition, made in the form of buckling rapture disc.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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。

8. 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。

9. 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.

10. 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。

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