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1. 发明授权

US09721687B2 Method of storing a chimney assembly of a reactor pressure vessel during a nuclear reactor outage 有权
公开(公告)号：US09721687B2
公开(公告)日：2017-08-01
申请号：US14453118
申请日：2014-08-06
申请人： Robin D. Sprague , David Jonathan Keck
发明人： Robin D. Sprague , David Jonathan Keck
IPC分类号： G21C19/32 , G21C1/32 , G21C1/08 , G21C15/26
CPC分类号： G21C19/32 , G21C1/084 , G21C1/322 , G21C15/26 , Y02E30/31
摘要： A method of storing a chimney assembly of a reactor pressure vessel during a nuclear reactor outage includes detaching a chimney barrel with upper chimney partitions therein from a top guide assembly of the reactor pressure vessel. A height of the upper chimney partitions is less than a height of the chimney barrel so as to leave a plenum region in a top section of the chimney barrel. The top guide assembly includes lower chimney partitions therein. The lower chimney partitions are removed from the top guide assembly and inserted into the plenum region of the chimney barrel so as to be on the upper chimney partitions. As a result, the chimney assembly can be stored in a relatively compact form during a reactor outage. The chimney assembly includes a combination of at least the chimney barrel, the upper chimney partitions, and the lower chimney partitions.

2. 发明授权

US09666312B2 Natural-circulation boiling water reactor and chimney therefor 有权
公开(公告)号：US09666312B2
公开(公告)日：2017-05-30
申请号：US14442934
申请日：2012-11-16
申请人： Hitachi-GE Nuclear Energy, Ltd.
发明人： Sho Kuroita , Sadakatsu Sawahata , Yasuhiro Mabuchi , Hiroaki Asakura , Fumihito Hirokawa
IPC分类号： G21C15/26 , G21C1/08
CPC分类号： G21C15/26 , G21C1/084 , Y02E30/31
摘要： A chimney arranged inside of a reactor pressure vessel of a natural-circulation boiling water reactor is provided. The chimney includes plural flow channels which guide a steam-water two-phase flow generated in a reactor core to the upper part of the reactor pressure vessel. Each of the flow channels is formed by plural flow channel separation walls whose lower-most part is supported by a chimney lattice plate. Chimney spacers that support a horizontal load are arranged between the flow channel separation walls of the adjacent flow channels. Chimney support rings that support the horizontal load are arranged at the outermost periphery of the plural flow channels that are supported by the chimney lattice plate.

3. 发明申请

US20170098483A1 HEAT EXCHANGE SYSTEM AND NUCLEAR REACTOR SYSTEM 审中-公开
公开(公告)号：US20170098483A1
公开(公告)日：2017-04-06
申请号：US15128007
申请日：2015-06-03
申请人： Institute of Modern Physics, Chinese Academy of Sciences
发明人： Wenlong Zhan , Lei Yang
IPC分类号： G21C15/14 , G21C15/16 , G21C1/08 , F22B37/26
CPC分类号： G21C15/14 , F22B1/02 , F22B1/023 , F22B1/162 , F22B37/268 , G21C1/084 , G21C1/30 , G21C15/16 , G21C19/42 , G21D1/006 , Y02E30/40
摘要： The present invention discloses a heat exchange system and a nuclear reactor system. The heat exchange system includes: a heating device; a heat consuming device connected with the heating device through a pipe to form a loop; and a steam, which is in a wet steam state before being supplied to a heat source, and is supplied to the heat consuming device after becoming dry steam or superheated steam by exchanging heat with the heating device. Heat exchange efficiency and security of the nuclear reactor system are improved by adopting steam as a heat exchange medium.

4. 发明申请

US20160194763A1 REACTOR INTERNAL STRUCTURE AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：反应器内部结构及其制造方法
公开(公告)号：US20160194763A1
公开(公告)日：2016-07-07
申请号：US15048227
申请日：2016-02-19
申请人： Kabushiki Kaisha Toshiba
发明人： Akio SAYANO , Norihisa SAITO , Tetsuji KANEKO , Yasuo MORISHIMA , Masato OKAMURA , Kenji YAMAZAKI , Kunihiko KINUGASA
IPC分类号： C23C30/00 , G21C15/25 , G21C1/08
CPC分类号： C23C30/005 , C23C18/1216 , C23C18/1241 , C23C26/00 , F04F5/10 , F04F5/46 , G21C1/084 , G21C15/25 , G21C17/0225 , G21C19/307 , Y02E30/31
摘要： A coating of niobium oxide, zirconium titanate, or nickel titanate is formed on at least a part of a surface of a jet pump member constituting a jet pump serving as a reactor internal structure of a boiling water reactor. Further, a solution containing, e.g., a niobium compound is applied to at least a part of the surface of the jet pump member constituting the jet pump, and the jet pump member coated with the solution is heat-treated to form a coating of, e.g., niobium oxide. With this configuration, the jet pump member constituting the jet pump of the boiling water reactor is provided such that deposition of crud can be sufficiently suppressed on the jet pump member.
摘要翻译：在构成用作沸水反应器的反应器内部结构的喷射泵的喷射泵构件的表面的至少一部分上形成氧化铌，钛酸锆或钛酸镍的涂层。此外，将包含例如铌化合物的溶液施加到构成喷射泵的喷射泵构件的至少一部分表面，并且将涂覆有该溶液的喷射泵构件进行热处理，例如，氧化铌。利用这种构造，构成沸水反应器的喷射泵的喷射泵构件被设置成能够在喷射泵构件上充分地抑制碎屑沉积。

5. 发明申请

US20160055924A1 Boiling Water Type Nuclear Power Plant 审中-公开
标题翻译：沸水型核电厂
公开(公告)号：US20160055924A1
公开(公告)日：2016-02-25
申请号：US14831232
申请日：2015-08-20
申请人： Hitachi-GE Nuclear Energy, Ltd.
发明人： Yuriko ONISHI , Kazuhiro YOSHIKAWA , Takashi SUMIKAWA
IPC分类号： G21C15/18 , G21D1/02 , G21D3/06 , G21C1/08
CPC分类号： G21C15/182 , G21C1/084 , G21D1/02 , G21D3/04 , Y02E30/40
摘要： To more reliably supply cooling water to a reactor pressure vessel and a reactor containment vessel using a back-up building if a severe accident should occur, a boiling water type nuclear power plant includes a nuclear reactor building including a reactor containment vessel, and an external building, which is installed independently outside the nuclear reactor building and which has an anti-hazard property. The external building has a power source and an operating panel independent of the nuclear reactor building. The boiling water type nuclear power plant includes a water injection pump installed inside the external building, an alternative water injection pipe performing water injection at least on a reactor pressure vessel or the reactor containment vessel in the nuclear reactor building from the water injection pump, and a valve connected to the alternative water injection pipe, making it possible to perform alternative water injection if a severe accident occurs.
摘要翻译：一个沸水型核电站包括一个核反应堆建筑物，包括一个反应堆安全壳和一个外部的反应堆，以更可靠地向反应堆压力容器和使用备用建筑物的反应堆安全壳提供冷却水，如果发生严重事故，建筑物，独立于核反应堆建筑物外安装，具有防危险性质。外部建筑物具有电源和独立于核反应堆建筑的操作面板。沸水型核电站包括安装在外部建筑物内的注水泵，至少在反应堆压力容器上进行注水的替代注水管或来自注水泵的核反应堆建筑物中的反应堆容纳容器，以及连接到替代注水管的阀门，如果发生严重事故，可以执行备用注水。

6. 发明申请

US20160042820A1 CHIMNEY ASSEMBLY OF A REACTOR PRESSURE VESSEL AND METHOD OF STORING THE SAME DURING A NUCLEAR REACTOR OUTAGE 有权
标题翻译：反应器压力容器的烟囱组件及其在核反应堆出口期间的储存方法
公开(公告)号：US20160042820A1
公开(公告)日：2016-02-11
申请号：US14453118
申请日：2014-08-06
申请人： Robin D. SPRAGUE , David Jonathan KECK
发明人： Robin D. SPRAGUE , David Jonathan KECK
IPC分类号： G21C19/32 , G21C1/32
CPC分类号： G21C19/32 , G21C1/084 , G21C1/322 , G21C15/26 , Y02E30/31
摘要： A method of storing a chimney assembly of a reactor pressure vessel during a nuclear reactor outage may include detaching a chimney barrel with upper chimney partitions therein from a top guide assembly of the reactor pressure vessel. A height of the upper chimney partitions is less than a height of the chimney barrel so as to leave a plenum region in a top section of the chimney barrel. The top guide assembly includes lower chimney partitions therein. The lower chimney partitions are removed from the top guide assembly and inserted into the plenum region of the chimney barrel so as to be on the upper chimney partitions. As a result, the chimney assembly can be stored in a relatively compact form during a reactor outage. The chimney assembly may be a combination of at least the chimney barrel, the upper chimney partitions, and the lower chimney partitions.
摘要翻译：在核反应堆中断期间存储反应堆压力容器的烟囱组件的方法可以包括从反应堆压力容器的顶部引导组件将具有上部烟囱分隔件的烟囱筒分离。上烟囱隔板的高度小于烟囱筒的高度，以便在烟囱筒的顶部部分中留下增压室。顶部导向组件包括其中的下部烟囱分隔件。下部烟囱分隔件从顶部引导组件移除并插入到烟囱筒的增压室区域中，以便在上部烟囱分隔壁上。结果，烟囱组件可以在反应堆中断期间以相对紧凑的形式存储。烟囱组件可以是至少烟囱筒，上部烟囱分隔件和下部烟囱分隔件的组合。

7. 发明申请

US20150228362A1 CORE OF LIGHT WATER REACTOR AND FUEL ASSEMBLY 审中-公开
标题翻译：轻水反应堆和燃料组件的核心
公开(公告)号：US20150228362A1
公开(公告)日：2015-08-13
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 , G21C3/42 , G21C1/08 , 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.
摘要翻译：轻水反应堆的核心具有多个燃料组件。燃料组件包括多个燃料棒，其中下端由下连接板支撑，并且上端由上连接板支撑。燃料棒在核燃料材料区之上形成集气室，并在核燃料材料区下方具有中子吸收材料填充区。附接到上连接板的中子吸收构件设置在核燃料材料区域上方的相邻燃料棒的相互增压室之间。中子吸收构件具有500mm的长度并且位于与核燃料材料区300mm的距离处。即使假设整个核心成为100％空白的状态，也不会向核心插入积极的反应性。

8. 发明申请

US20120020447A1 OPTIMIZED FUEL ASSEMBLY CHANNELS AND METHODS OF CREATING THE SAME 有权
标题翻译：优化燃料组装通道及其制造方法
公开(公告)号：US20120020447A1
公开(公告)日：2012-01-26
申请号：US12843037
申请日：2010-07-25
申请人： Jason B. INGRAHAM , Gerald D. Kvaall, JR. , Paul E. Cantonwine , Michael W. Thomas , William C. Cline
发明人： Jason B. INGRAHAM , Gerald D. Kvaall, JR. , Paul E. Cantonwine , Michael W. Thomas , William C. Cline
IPC分类号： G21C3/07 , G21C3/00
CPC分类号： G21C3/06 , G21C1/084 , G21C3/04 , G21C3/322 , G21C3/324 , G21C15/02 , G21C21/02 , Y02E30/38
摘要： Fuel assemblies include an outer channel having a physical configuration optimized for a position of the fuel assembly within a core of a nuclear reactor. The position of the fuel assembly with respect to an employed control blade in the nuclear reactor determines if the outer channel may be thickened, reinforced, and/or fabricated of Zircaloy-4 or similar distortion-resistant material, so as to reduce or prevent distortion of the channel against the control blade, or thinned so as to increase water volume and enhance reactivity in the assembly. Reactor cores having configured fuel assemblies include fuel assemblies having different outer channels. Methods include determining operational characteristics of the fuel assembly, including likelihood of being placed directly adjacent to an employed control blade, and physically selecting or modifying the outer channel of the fuel assembly based thereon.
摘要翻译：燃料组件包括具有针对燃料组件在核反应堆的核心内的位置优化的物理构造的外部通道。燃料组件相对于核反应堆中使用的控制叶片的位置确定外部通道是否可以由Zircaloy-4或类似的抗变形材料加厚，增强和/或制造，以便减少或防止变形的通道相对于控制叶片，或变薄以增加水量并增强组件中的反应性。具有配置的燃料组件的反应堆芯体包括具有不同外部通道的燃料组件。方法包括确定燃料组件的操作特性，包括直接放置在所使用的控制叶片附近的可能性，以及基于此物理地选择或修改燃料组件的外部通道。

9. 发明授权

US07946383B2 Acoustic load mitigator 有权
标题翻译：声负载减速器
公开(公告)号：US07946383B2
公开(公告)日：2011-05-24
申请号：US11940436
申请日：2007-11-15
申请人： John J. Lynch
发明人： John J. Lynch
IPC分类号： F01N1/00 , F01N1/02 , F01N1/06 , F01N5/00 , F01N13/08 , F01N13/18 , F02K1/08 , F02M35/10 , G10K11/16
CPC分类号： F16L55/033 , F16L55/041 , G21C1/084 , G21C19/00
摘要： A system for reducing an acoustic load of a fluid flow includes a first pipe. The first pipe includes a first end and a second end and a first aperture and a second aperture, the first and second apertures being intermediate the first and second ends. A second pipe includes a first end and a second end and a third aperture intermediate the first and second ends. The second pipe is connected at its first end to the first pipe at the first aperture. A bypass pipe includes a first end connected to the second aperture of the first pipe and a second end connected to the third aperture of the second pipe. A method of reducing an acoustic load of a flow in a standpipe connected to a first pipe configured to carry a main flow includes providing a bypass flow from the first pipe to the standpipe.
摘要翻译：用于降低流体流的声学负载的系统包括第一管。第一管包括第一端和第二端以及第一孔和第二孔，第一和第二孔位于第一端和第二端之间。第二管包括第一端和第二端以及位于第一端和第二端之间的第三孔。第二管在其第一端处连接到第一孔处的第一管。旁通管包括连接到第一管的第二孔的第一端和连接到第二管的第三孔的第二端。降低连接到构造成承载主流的第一管的立管中的流的声学负载的方法包括提供从第一管到立管的旁路流。

10. 发明授权

US07769124B2 Natural circulation boiling water reactor and handling method thereof 有权
标题翻译：自然循环沸水反应器及其处理方法
公开(公告)号：US07769124B2
公开(公告)日：2010-08-03
申请号：US12132141
申请日：2008-06-03
申请人： Atsushi Watanabe , Yoichi Wada , Makoto Nagase , Kazushige Ishida , Hideyuki Hosokawa , Fumihito Hirokawa , Masaaki Tsubaki , Shiro Takahashi
发明人： Atsushi Watanabe , Yoichi Wada , Makoto Nagase , Kazushige Ishida , Hideyuki Hosokawa , Fumihito Hirokawa , Masaaki Tsubaki , Shiro Takahashi
IPC分类号： G21C17/00 , G21C19/00
CPC分类号： G21C1/084 , G21C15/00 , G21Y2002/402 , G21Y2004/30 , Y02E30/31
摘要： A handling method for a natural circulation boiling water reactor having a chimney having cylindrical chimney shell disposed above a core in a reactor pressure vessel, a plurality of square tubes disposed in the chimney shell, and a grid support plate with grid holes supporting and in communication with a lower end portion of the square tubes so that adjacent square tubes are disposed at an interval which exceeds the width of one square tube between them. The method includes steps shifting predetermined ones of the square tubes to the interval between the square tubes, and performing maintenance and inspection of members around a core via the grid holes which appear at positions from which the predetermined square tubes are taken out due to the shift of the predetermined square tubes.
摘要翻译：一种天然循环沸水反应器的处理方法，该反应器具有烟囱，该烟囱具有设置在反应堆压力容器内的核心上方的圆筒形烟囱壳，设置在烟囱式外壳中的多个方管，以及支撑和通信的格栅支撑板具有方管的下端部分，使得相邻的方管以超过它们之间的一个方管的宽度的间隔设置。该方法包括以下步骤：将方管中的预定方式移动到方管之间的间隔，并且通过栅格孔执行对围绕芯的构件的维护和检查，栅格孔出现在由于偏移而从其中取出预定方管的位置的预定方形管。

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