公开(公告)号：US20240296966A1

公开(公告)日：2024-09-05

申请号：US18444473

申请日：2024-02-16

申请人： Fred Donald Lang

发明人： Fred Donald Lang

IPC分类号： G21C17/032 ,  G21C7/32 ,  G21C17/022

CPC分类号： G21C17/032 ,  G21C7/32 ,  G21C17/022

摘要： This invention relates to the monitoring and diagnosing of nuclear power plants for its thermal performance using the NCV Method. Its applicability comprises any nuclear reactor such as used for research producing a useful output. Its greatest applicability lies with conventional Pressurized Water Reactor and Boiling Water Reactor nuclear plants generating an electric power. Its teachings of treating fission as an inertial process, a phenomena which is self-contained following incident neutron capture, allows the determination of an absolute neutron flux. This process is best treated by Second Law principles producing a total fission exergy. This invention also applies to the design of fusion thermal systems regards the determination of its Second Law viability and absolute plasma flux.

公开(公告)号：US20240282473A1

公开(公告)日：2024-08-22

申请号：US18393377

申请日：2023-12-21

申请人： TerraPower, LLC

发明人： Jesse R. Cheatham, III ,  Christopher M. Reagan ,  John E. Truax ,  Jacob Wilcox

IPC分类号： G21C17/022 ,  G21C17/00

CPC分类号： G21C17/022 ,  G21C17/002

摘要： A failed fuel pin emits cesium into the primary sodium coolant and xenon into the cover gas in a reactor vessel. A pipe containing radioactive liquid sodium accepts flowing primary sodium from the reactor vessel. A radiation detector is positioned adjacent the pipe such that gamma radiation emitted from the pipe can be measured. The pipe may be isolated to increase detection limits by allowing short-lived isotopes to decay. The isotopic ratio of 137Cs/134Cs can be measured, which can be used to determine the burnup of a fuel assembly from within the core, and therefore, the failed fuel assembly can be identified based at least in part on the burnup. Further, mass spectrometry may be used to measure the ratio of a stable and unstable xenon isotope. The identification techniques may be used in conjunction to quickly identify a failed fuel assembly in-situ and during reactor operation.

公开(公告)号：US09779841B2

公开(公告)日：2017-10-03

申请号：US14186536

申请日：2014-02-21

申请人： David W James ,  Tom Kalinowski

发明人： David W James ,  Tom Kalinowski

IPC分类号： G21C17/022 ,  G21C17/00 ,  G21F9/12 ,  G21C19/307

CPC分类号： G21C17/002 ,  G21C17/022 ,  G21C19/307 ,  G21F9/12

摘要： A method of determining and quantifying the presence and concentration of regulated radionuclides present in filter material used to remove radionuclide contaminants from the cooling water of a nuclear reactor. Multiple samples of the reactor cooling water are taken and the presence and concentration of directly measurable fission and activation produced radionuclides are determined through gamma spectroscopy. The release rate of radioactivity from the reactor as a function of the removal rate of the filter material is determined at equilibrium. The presence and the concentration of the indirectly measured fission regulated radionuclides are determined as a function of release rates of the directly measurable fission produced isotopes.

公开(公告)号：US20170176315A1

公开(公告)日：2017-06-22

申请号：US15375346

申请日：2016-12-12

申请人： Mitsubishi Heavy Industries, Ltd.

发明人： Hideyuki Sakata ,  Hiroyuki Kojima ,  Hiroshi Matsuoka ,  Yuji Momose

IPC分类号： G01N15/08 ,  G21C15/18

CPC分类号： G01N15/0806 ,  G01N2015/084 ,  G21C15/182 ,  G21C17/022 ,  G21C19/307 ,  Y02E30/40

摘要： Acquiring sets of test data on amounts of foreign matter passed through a recirculation sump screen when different amounts of foreign matter are input; forming a passed foreign matter amount approximate line that approximates the amounts of passed foreign matter with respect to the amounts of input foreign matter on the basis of the sets of test data on the amounts of passed foreign matter; forming a passed foreign matter amount envelope tangent to the passed foreign matter amount approximate line; and estimating a total passed foreign matter amount with respect to the amounts of input foreign matter on the basis of the passed foreign matter amount envelope to evaluate the recirculation sump screen are provided.

公开(公告)号：US09322487B2

公开(公告)日：2016-04-26

申请号：US14358941

申请日：2012-11-16

申请人： Nuccorp, Inc.

发明人： Willie Turner Wood, Jr.

IPC分类号： F16K24/04 ,  G21C17/022 ,  G21C19/28 ,  F16K37/00 ,  G21D1/02

CPC分类号： F16K24/044 ,  F16K37/00 ,  G21C17/022 ,  G21C19/28 ,  G21D1/02 ,  Y02E30/40 ,  Y10T137/3099 ,  Y10T137/8342

摘要： A device for accumulating, isolating, indicating and venting accumulated gas in a fluid system pipe includes a main pipe fitting affixed to a system pipe in which a hole has been drilled. A standpipe attached to the pipe fitting houses a magnetic float. A magnetic-float level indicator exterior to the pipe indicates the magnetic float's level. A valve attached to the standpipe above the magnetic float allows controlled ventilation of the gas in the standpipe and thus in the piping system. Gas from the system pipe accumulates in the standpipe, removed from the primary fluid flow path of the system pipe. In the standpipe, as the liquid/gas interface drops, the float drops to a pre-determined level, at which point the user vents the gas from the piping system, causing the magnetic float to rise indicating that gas is again at acceptable levels in the piping system.

摘要翻译： 用于在流体系统管道中积聚，分离，指示和排出积聚的气体的装置包括：固定到其中钻有孔的系统管道的主管件。 连接到管件的立管装有一个磁浮子。 管子外侧的磁浮液位指示器表示磁浮子的水平面。 安装在磁浮子上方的立管的阀允许管道中的气体和管道系统中的气体受到控制的通风。 来自系统管道的气体积聚在立管中，从系统管道的主要流体流动路径中移除。 在立管中，当液体/气体界面下降时，浮子下降到预定的水平，此时用户从管道系统排出气体，导致磁性浮子上升，表明气体再次处于可接受的水平 管道系统。

公开(公告)号：US20150364223A1

公开(公告)日：2015-12-17

申请号：US14761776

申请日：2014-01-17

申请人： AREVA

发明人： Karsten NOWOTKA

IPC分类号： G21C17/022 ,  G21C19/307

CPC分类号： G21C17/022 ,  G01N1/2035 ,  G01N15/0272 ,  G21C19/307

摘要： A system for characterizing products of corrosion which are present in a nuclear reactor cooling circuit, the characterization system having a pipe connected to the reactor cooling circuit through which the coolant flows, the system including at least two filters in series, the downstream filter having a smaller pore size than the filter situated upstream, the filters being able to have the cooling fluid passed through; differential-pressure sensors associated with each of the filters make it possible to determine the extent to which each of the filters is obstructed; a temperature-regulating system to regulate the temperature of the liquid flowing through the pipe.

摘要翻译： 用于表征存在于核反应堆冷却回路中的腐蚀产物的系统，所述表征系统具有连接到冷却剂流过的反应堆冷却回路的管道，该系统包括串联的至少两个过滤器，下游过滤器具有 比位于上游的过滤器更小的孔径，过滤器能够使冷却流体通过; 与每个过滤器相关联的差压传感器使得可以确定每个过滤器被阻挡的程度; 用于调节流过管道的液体的温度的温度调节系统。

公开(公告)号：US09001957B2

公开(公告)日：2015-04-07

申请号：US12968898

申请日：2010-12-15

申请人： Filemon Tecson Cabrera ,  Angelito Foz Gonzaga ,  Edgardo V. Nazareno ,  Russell Seeman ,  Samson Hettiarachchi

发明人： Filemon Tecson Cabrera ,  Angelito Foz Gonzaga ,  Edgardo V. Nazareno ,  Russell Seeman ,  Samson Hettiarachchi

IPC分类号： G21C17/00 ,  G21C17/022 ,  G01N17/04

CPC分类号： G21C17/022 ,  G01N17/04

摘要： Electrochemical corrosion potential (ECP) probe assemblies may be used to monitor ECP of materials due to coolant chemistry in an operating nuclear reactor. Example embodiment assemblies include at least one ECP probe that detects ECP of potentially several different materials, a structural body providing a fluid flow path for the coolant over the ECP probes, and a signal transmitter that transmits or carries ECP data to an external receiver. The ECP probes may be of any number and/or type, so as to detect ECP for different component materials, including stainless steel, a zirconium alloys, etc. The ECP probes may further detect ECP due to ion concentration, pH, etc. The ECP data may be transmitted through wired or wireless signal transmitters. Example methods include installing and using example embodiment ECP probe assemblies in nuclear reactors and facilities.

摘要翻译： 电化学腐蚀电位（ECP）探针组件可用于监测由于在运行的核反应堆中的冷却剂化学物质导致的材料的ECP。 示例性实施例组件包括至少一个ECP探针，其检测潜在的几种不同材料的ECP，结构体为ECP探针上的冷却剂提供流体流动路径，以及将ECP数据传输或携带到外部接收器的信号发射器。 ECP探针可以是任何数量和/或类型，以便检测不同组分材料（包括不锈钢，锆合金等）的ECP。ECP探针可以进一步检测由于离子浓度，pH等引起的ECP。 ECP数据可以通过有线或无线信号发射机传输。 示例性方法包括在核反应堆和设施中安装和使用示例性实施例ECP探针组件。

公开(公告)号：US20140311588A1

公开(公告)日：2014-10-23

申请号：US14358941

申请日：2012-11-16

申请人： Nuccorp, Inc.

发明人： Willie Turner Wood, JR.

IPC分类号： F16K24/04 ,  F16K37/00

CPC分类号： F16K24/044 ,  F16K37/00 ,  G21C17/022 ,  G21C19/28 ,  G21D1/02 ,  Y02E30/40 ,  Y10T137/3099 ,  Y10T137/8342

摘要： A device for accumulating, isolating, indicating and venting accumulated gas in a fluid system pipe includes a main pipe fitting affixed to a system pipe in which a hole has been drilled. A standpipe attached to the pipe fitting houses a magnetic float. A magnetic-float level indicator exterior to the pipe indicates the magnetic float's level. A valve attached to the standpipe above the magnetic float allows controlled ventilation of the gas in the standpipe and thus in the piping system. G ras from the system pipe accumulates in the standpipe, removed from the primary fluid flow path of the system pipe. In the standpipe, as the liquid/gas interface drops, the float drops to a pre-determined level, at which point the user vents the gas from the piping system, causing the magnetic float to rise indicating that gas is again at acceptable levels in the piping system.

摘要翻译： 用于在流体系统管道中积聚，分离，指示和排出积聚的气体的装置包括：固定到其中钻有孔的系统管道的主管件。 连接到管件的立管装有一个磁浮子。 管子外侧的磁浮液位指示器表示磁浮子的水平面。 安装在磁浮子上方的立管的阀允许管道中的气体和管道系统中的气体受到控制的通风。 系统管道的G ras积聚在立管中，从系统管道的主流体流路中移除。 在立管中，当液体/气体界面下降时，浮子下降到预定的水平，此时用户从管道系统排出气体，导致磁性浮子上升，表明气体再次处于可接受的水平 管道系统。

公开(公告)号：US08731132B2

公开(公告)日：2014-05-20

申请号：US13362962

申请日：2012-01-31

申请人： Masato Okamura ,  Tetsuo Oosato ,  Seiji Yamamoto ,  Tadasu Yotsuyanagi ,  Nagayoshi Ichikawa ,  Kenji Yamazaki ,  Junichi Takagi ,  Hidehiro Urata ,  Shunichi Suzuki ,  Kenro Takamori ,  Junichi Suzuki

发明人： Masato Okamura ,  Tetsuo Oosato ,  Seiji Yamamoto ,  Tadasu Yotsuyanagi ,  Nagayoshi Ichikawa ,  Kenji Yamazaki ,  Junichi Takagi ,  Hidehiro Urata ,  Shunichi Suzuki ,  Kenro Takamori ,  Junichi Suzuki

IPC分类号： G21C15/28

CPC分类号： G21C17/0225 ,  G21C13/08 ,  G21C17/022 ,  G21Y2002/103 ,  G21Y2004/10 ,  Y02E30/40

摘要： In a nuclear power plant, a corrosion-resistant oxide film on a surface of the metal component of a reactor structure is exposed to a high-temperature water, the corrosion-resistant oxide film containing an oxide having a property of a P-type semiconductor, and a catalytic substance having a property of an N-type semiconductor is deposited on the oxide film. The oxide film maintains the property of the P-type semiconductor.

摘要翻译： 在核电站中，将反应器结构体的金属成分表面的耐腐蚀氧化膜暴露于高温水中，含有具有P型半导体的性质的氧化物的耐腐蚀性氧化物膜 ，并且在氧化物膜上沉积具有N型半导体性质的催化物质。 氧化膜保持P型半导体的性质。

公开(公告)号：US08524056B2

公开(公告)日：2013-09-03

申请号：US12696355

申请日：2010-01-29

申请人： Kazushige Ishida ,  Yoichi Wada ,  Masahiko Tachibana ,  Motomasa Fuse ,  Naoshi Usui ,  Motohiro Aizawa ,  Nobuyuki Ota

发明人： Kazushige Ishida ,  Yoichi Wada ,  Masahiko Tachibana ,  Motomasa Fuse ,  Naoshi Usui ,  Motohiro Aizawa ,  Nobuyuki Ota

IPC分类号： G01N17/00 ,  G01N27/26 ,  G21C9/00

CPC分类号： G21C17/022 ,  G01N17/04

摘要： An electrochemical corrosion potential sensor (ECP sensor) has an electrode cap, an electrode fixing body, a tubular insulator, a tubular metallic housing, and a conductive wire. Both ends of the tubular insulator are connected to the electrode fixing body and the tubular metallic housing respectively. A conductive wire passes through the tubular insulator and the tubular metallic housing, and is connected to an inner surface of the electrode fixing body. The electrode cap 11 disposed to cover an outer surface of the electrode fixing body. The ECP sensor with such a construction can lengthen the lifetime.

摘要翻译： 电化学腐蚀电位传感器（ECP传感器）具有电极盖，电极固定体，管状绝缘体，管状金属外壳和导线。 管状绝缘体的两端分别与电极固定体和管状金属外壳连接。 导线穿过管状绝缘体和管状金属外壳，并连接到电极固定体的内表面。 设置为覆盖电极固定体的外表面的电极帽11。 具有这种结构的ECP传感器可以延长使用寿命。