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1. 发明授权

US10867712B2 Isolation condenser systems for nuclear reactor commercial electricity generation 有权
公开(公告)号：US10867712B2
公开(公告)日：2020-12-15
申请号：US15635400
申请日：2017-06-28
申请人： GE-Hitachi Nuclear Energy Americas LLC
发明人： Brian S. Hunt , Christer N. Dahlgren , Wayne Marquino
IPC分类号： G21C15/16 , G21C15/02 , G21C15/18 , G21C15/26 , G21C17/035 , G21C9/04
CPC分类号： G21C15/16 , G21C15/02 , G21C15/18 , G21C15/26 , G21C17/035 , G21C9/04
摘要： Nuclear reactors include isolation condenser systems that can be selectively connected with the reactor to provide desired cooling and pressure relief. Isolation condensers are immersed in a separate chamber holding coolant to which the condenser can transfer heat from the nuclear reactor. The chamber may selectively connect to an adjacent coolant reservoir for multiple isolation condensers. A check valve may permit coolant to flow only from the reservoir to the isolation condenser. A passive switch can operate the check valve and other isolating components. Isolation condensers can be activated by opening an inlet and outlet to/from the reactor for coolant flow. Fluidic controls and/or a pressure pulse transmitter may monitor reactor conditions and selectively activate individual isolation condensers by opening such flows. Isolation condenser systems may be positioned outside of containment in an underground silo with the containment, which may not have any other coolant source.

2. 发明授权

US09423286B2 Liquid level sensing apparatus and method 有权
标题翻译：液位感测装置及方法
公开(公告)号：US09423286B2
公开(公告)日：2016-08-23
申请号：US14374272
申请日：2013-01-25
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kentaro Nishimura , Katsumoto Nagase , Fujio Shiraishi , Yuka Takada
IPC分类号： G01F23/24 , G01F23/22 , G21C17/035 , G21C19/07
CPC分类号： G01F23/22 , G01F23/241 , G01F23/243 , G01F23/248 , G21C17/035 , G21C19/07
摘要： Provided is a apparatus for sensing a liquid level reliably based solely on an analog process even if a liquid held in a container boils, causing the liquid level to fall. A liquid level sensing apparatus includes: a probe selection unit configured to select a probe whose heater is to be activated from among the plurality of probes; an input unit configured to receive an output of the temperature sensor of the probe selected by the probe selection unit, the output being received as a temperature signal directly in the form of an analog quantity; a signal processing unit configured to output a processing signal of the temperature signal in synchronization with activation of the heater; a calculation unit configured to arithmetically process the temperature signal and the processing signal and output a result; a gas/liquid discrimination unit configured to discriminate whether the detecting point exists in a gas phase or a liquid phase based on the output result of the arithmetic processing; and a display unit configured to indicate a discrimination result produced by the gas/liquid discrimination unit.
摘要翻译：本发明提供了一种只要依靠模拟处理可靠地检测液位的装置，即使容纳在容器中的液体沸腾，导致液面下降。液位检测装置包括：探头选择单元，被配置为从多个探针中选择要加热器被激活的探针; 输入单元，被配置为接收由探头选择单元选择的探头的温度传感器的输出，所述输出作为模拟量直接的温度信号接收; 信号处理单元，被配置为与加热器的激活同步地输出温度信号的处理信号; 计算单元，被配置为对所述温度信号和所述处理信号进行算术处理并输出结果; 气体/液体鉴别单元，其被配置为基于所述算术处理的输出结果来鉴别所述检测点是否存在于气相或液相中; 以及显示单元，被配置为指示由气体/液体识别单元产生的识别结果。

3. 发明授权

US09214247B2 Water filling system for reactor water level gauge 有权
标题翻译：反应堆水位计灌水系统
公开(公告)号：US09214247B2
公开(公告)日：2015-12-15
申请号：US13672984
申请日：2012-11-09
申请人： Fujio Shiraishi , Hisayoshi Fukai
发明人： Fujio Shiraishi , Hisayoshi Fukai
IPC分类号： G21C17/035 , G21C17/00 , G21C15/18 , G21C17/02
CPC分类号： G21C17/00 , G21C15/182 , G21C17/02 , G21C17/035 , Y02E30/40
摘要： A water filling system for a reactor water level gauge is provided for filling a reactor water level gauge instrumentation pipe in a reactor building with water and filling the reactor water level gauge with water even in an unexpected abnormal event where the reactor building is brought into a highly radioactive environment. The water filling system for a reactor water level gauge includes a water filling instrumentation pipe guided from the reactor water level gauge instrumentation pipe in the reactor building to an outside of the reactor building and filling the reactor water level gauge instrumentation pipe in the reactor building with water even in an unexpected abnormal event of a nuclear power plant.
摘要翻译：提供了一种用于反应堆水位计的充水系统，用于在具有水的反应堆建筑物中填充反应堆水位计仪表管，并且即使在意外的异常事件中将反应堆建筑物置于高放射性环境。反应堆水位计的注水系统包括从反应堆建筑物内的反应堆水位计仪表管引导到反应堆建筑物外部的充水仪表管道，并在反应堆建筑物内填充反应堆水位计仪表管道，即使在核电厂意外的异常事件中也是如此。

4. 发明申请

US20110110478A1 Systems and methods for controlling reactivity in a nuclear fission reactor 有权
公开(公告)号：US20110110478A1
公开(公告)日：2011-05-12
申请号：US12657734
申请日：2010-01-25
申请人： Charles E. Ahlfeld , Ehud Greenspan , Roderick A. Hyde , Nathan P. Myhrvold , Joshua C. Walter , Kevan D. Weaver , Thomas Allan Weaver , Lowell L. Wood, JR. , George B. Zimmerman
发明人： Charles E. Ahlfeld , Ehud Greenspan , Roderick A. Hyde , Nathan P. Myhrvold , Joshua C. Walter , Kevan D. Weaver , Thomas Allan Weaver , Lowell L. Wood, JR. , George B. Zimmerman
IPC分类号： G21C7/30 , G21C17/035
CPC分类号： G21C7/30 , G21C7/08 , G21C7/103 , G21C17/035 , Y02E30/34 , Y02E30/39
摘要： Illustrative embodiments provide a reactivity control assembly for a nuclear fission reactor, a reactivity control system for a nuclear fission reactor having a fast neutron spectrum, a nuclear fission traveling wave reactor having a fast neutron spectrum, a method of controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, methods of operating a nuclear fission traveling wave reactor having a fast neutron spectrum, a system for controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, a method of determining an application of a controllably movable rod, a system for determining an application of a controllably movable rod, and a computer program product for determining an application of a controllably movable rod.

5. 发明授权

US5365555A Water level measurement system 失效
标题翻译：水位测量系统
公开(公告)号：US5365555A
公开(公告)日：1994-11-15
申请号：US79079
申请日：1993-06-23
申请人： James K. Sawabe , Lamont H. Youngborg
发明人： James K. Sawabe , Lamont H. Youngborg
IPC分类号： G21C17/035 , G21C17/00
CPC分类号： G21C17/035 , G21Y2002/204 , G21Y2002/206 , G21Y2004/30
摘要： A system for measuring water level includes a reactor pressure vessel containing a core and steam separator assembly, with the vessel being filled with water to a nominal level above the core. A reference leg contains a column of water having a reference level disposed above the nominal level, and a first variable leg has a first tap disposed in the vessel below the reference and nominal levels. A first monitor is disposed between the reference leg and the first leg for determining differential pressure therebetween to indicate level of the water in the vessel above the first tap. A second variable leg includes a second tap in the vessel below the first tap, and a second monitor is disposed between the first and second legs for determining differential pressure therebetween to indicate level of water in the vessel between the first and second taps when the water level falls below the first tap.
摘要翻译：用于测量水位的系统包括含有核心和蒸汽分离器组件的反应堆压力容器，其中容器充满水以达到芯上方的标称水平。参考腿包括具有设置在标称水平以上的参考水平的水柱，并且第一可变腿具有设置在血管中低于参考和标称水平的第一抽头。第一监视器设置在参考腿和第一腿之间，用于确定它们之间的差压，以指示在第一抽头上方的容器中的水的水平。第二可变腿包括在第一抽头下方的容器中的第二抽头，并且第二监测器设置在第一和第二腿之间，用于确定其间的压差，以指示在第一和第二抽头之间的第一和第二抽头之间的容器中的水的水平水平低于第一次水龙头。

6. 发明授权

US5295120A Hermetically sealed ultrasonic transducer system 失效
标题翻译：密封超声波换能器系统
公开(公告)号：US5295120A
公开(公告)日：1994-03-15
申请号：US676059
申请日：1991-03-27
申请人： James L. McShane
发明人： James L. McShane
IPC分类号： B06B1/06 , G01F23/296 , G10K11/00 , G21C17/035 , G01S15/08 , H04R1/00
CPC分类号： G01F23/2968 , B06B1/0618 , G10K11/002 , G21C17/035 , G21Y2002/204 , G21Y2004/303 , Y10S367/908
摘要： There is provided a hermetically sealed dry-coupled transducer apparatus and system adapted for improved measuring of liquid level in a pipe or vessel, or for other instrumentation applications. The transducer system is characterized by having a hermetic seal at the junction of an acoustic window 33' and an outer shell 31' (thereby hermetically sealing a forward aperture of the outer shell), and a thin, compliant, threaded cap 46 enclosing a rearward aperture of the outer shell. The cap provides means for repetitively assembling and disassembling the transducer module, if necessary, prior to welding. In addition, a push rod applies acoustic coupling force to a piezoelectric transducer element to effect dry coupling to a surface, while the compliant cap prevents significant force transmission to the shell. The system exhibits limited reverberation and, moreover, is suitable for use in high-temperature environments.
摘要翻译：提供了一种气密密封的干式耦合传感器装置和系统，适用于改进对管道或容器或其他仪器应用中液位的测量。传感器系统的特征在于在声窗33'和外壳31'的接合部处具有气密密封（从而气密地密封外壳的前孔）和薄的柔顺螺纹的盖46，其包围一后向外壳的孔径。如果需要，盖子提供了在焊接之前重复组装和拆卸传感器模块的手段。此外，推杆向压电换能器元件施加声耦合力以实现与表面的干式耦合，而柔性盖防止对壳的显着的力传递。该系统表现出有限的混响，而且适用于高温环境。

7. 发明授权

US4113562A Apparatus for controlling coolant level in a liquid-metal-cooled nuclear reactor 失效
标题翻译：用于控制液态金属冷却核反应堆中的冷却水平的装置
公开(公告)号：US4113562A
公开(公告)日：1978-09-12
申请号：US789154
申请日：1977-04-20
申请人： Robert D. Jones
发明人： Robert D. Jones
IPC分类号： G21C1/02 , G21C17/035
CPC分类号： G21C17/035 , G21C1/028 , Y02E30/34
摘要： A liquid-metal-cooled fast-breeder reactor which has a thermal liner spaced inwardly of the pressure vessel and includes means for passing bypass coolant through the annulus between the thermal liner and the pressure vessel to insulate the pressure vessel from hot outlet coolant includes control ports in the thermal liner a short distance below the normal operating coolant level in the reactor and an overflow nozzle in the pressure vessel below the control ports connected to an overflow line including a portion at an elevation such that overflow coolant flow is established when the coolant level in the reactor is above the top of the coolant ports. When no makeup coolant is added, bypass flow is inwardly through the control ports and there is no overflow; when makeup coolant is being added, coolant flow through the overflow line will maintain the coolant level.

8. 发明授权

US10726960B2 Nuclear reactor safety system 有权
公开(公告)号：US10726960B2
公开(公告)日：2020-07-28
申请号：US16185090
申请日：2018-11-09
申请人： ROLLS-ROYCE POWER ENGINEERING PLC
发明人： Benjamin J. Ireland
IPC分类号： G21C15/18 , G21D3/06 , G21C1/09 , G21C17/035
摘要： A coolant injection system for a nuclear power generation system includes the coolant injection system, and method of operation of the coolant injection system. The nuclear power generation system includes a reactor pressure vessel having a reactor core, a pressuriser in fluid communication with the reactor pressure vessel, and the injection system, which comprises a make-up tank having a tank inlet and a tank outlet. The injection system has an operating condition, and a fault response condition, and is configured to switch between these conditions when coolant level in the pressuriser drops below a threshold level. In the operating condition, the tank outlet is isolated from the reactor pressure vessel such that coolant is retained in the make-up tank, and the tank inlet is in fluid communication with the reactor pressure vessel and the pressuriser.

9. 发明申请

US20150036778A1 REACTOR STATE MONITORING APPARATUS AND MONITORING METHOD THEREOF 审中-公开
标题翻译：反应器状态监测装置及其监测方法
公开(公告)号：US20150036778A1
公开(公告)日：2015-02-05
申请号：US14367694
申请日：2012-12-21
申请人： Kabushiki Kaisha Toshiba
发明人： Mikio Izumi , Hidehiko Kuroda , Yuka Takada , Makoto Takemura , Hiroaki Kenjyo
IPC分类号： G21C17/035 , G21C17/10 , G21C13/02
CPC分类号： G21C17/035 , G21C13/02 , G21C17/10 , G21D3/04 , G21D3/06 , Y02E30/40
摘要： A reactor state monitoring apparatus including: a first gamma ray-dose measurement device that detects and measures an atmospheric radiation dose caused by radioactive substances on a containment vessel side respective to a biological shielding wall surrounding a pressure vessel and outside the pressure vessel; a second gamma ray-dose measurement device that detects and measures a radiation dose on the pressure vessel side respective to the biological shielding wall; a fuel radiation measuring device that detects and measures a radiation dose of fuel in the pressure vessel; and a water amount evaluation device that calculates a difference between radiation doses measured by the fuel radiation measuring device and the first gamma ray-dose measurement device as a corrected fuel radiation dose, and acquires a cooling water level as a water level evaluation value, based on the radiation dose measured by the second gamma ray-dose measurement device and the corrected fuel radiation dose.
摘要翻译：一种反应器状态监测装置，包括：第一伽马射线剂量测量装置，其检测并测量由围绕压力容器的生物屏蔽壁和压力容器外部的围绕容器侧的放射性物质引起的大气辐射剂量; 第二伽马射线剂量测量装置，其检测并测量与生物屏蔽壁相对的压力容器侧上的辐射剂量; 燃料辐射测量装置，其检测并测量所述压力容器中的燃料的辐射剂量; 以及水量评估装置，其计算由燃料辐射测量装置测量的辐射剂量与第一伽马射线剂量测量装置之间的差异作为校正的燃料辐射剂量，并且基于水的评估值获取冷却水位关于由第二伽马射线剂量测量装置测量的辐射剂量和校正的燃料辐射剂量。

10. 发明申请

US20110110477A1 Systems and methods for controlling reactivity in a nuclear fission reactor 有权
公开(公告)号：US20110110477A1
公开(公告)日：2011-05-12
申请号：US12590447
申请日：2009-11-06
申请人： Charles E. Ahlfeld , Ehud Greenspan , Roderick A. Hyde , Nathan P. Myhrvold , Joshua C. Walter , Kevan D. Weaver , Thomas Allan Weaver , Lowell L. Wood, JR. , George B. Zimmerman
发明人： Charles E. Ahlfeld , Ehud Greenspan , Roderick A. Hyde , Nathan P. Myhrvold , Joshua C. Walter , Kevan D. Weaver , Thomas Allan Weaver , Lowell L. Wood, JR. , George B. Zimmerman
IPC分类号： G21C7/30 , G21C17/035 , G21C3/32
CPC分类号： G21C7/08 , G21C1/026 , G21C7/06 , G21C7/103 , G21C7/30 , G21C17/035 , Y02E30/34 , Y02E30/39
摘要： Illustrative embodiments provide a reactivity control assembly for a nuclear fission reactor, a reactivity control system for a nuclear fission reactor having a fast neutron spectrum, a nuclear fission traveling wave reactor having a fast neutron spectrum, a method of controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, methods of operating a nuclear fission traveling wave reactor having a fast neutron spectrum, a system for controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, a method of determining an application of a controllably movable rod, a system for determining an application of a controllably movable rod, and a computer program product for determining an application of a controllably movable rod.

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