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1. 发明申请

US20180330835A1 METHOD FOR MANAGING STOPPAGE OF A PRESSURISED-WATER NUCLEAR REACTOR 审中-公开
公开(公告)号：US20180330835A1
公开(公告)日：2018-11-15
申请号：US15536078
申请日：2015-12-16
申请人： DCNS
发明人： Jean MASDUPUY , Fabien PUCCETTI , Geoffrey Paul Etienne HARATYK , Vincent GOURMEL
IPC分类号： G21C15/18 , G21D3/06 , G21D3/00 , G21C1/08
CPC分类号： G21C15/18 , G21C1/086 , G21C17/002 , G21D3/001 , G21D3/06 , Y02E30/40
摘要： Disclosed is a method for managing stoppage of a pressurized-water nuclear reactor integrated into a submerged module for producing electrical power, in case of detection of a primary/secondary leak in a steam generator equipped with a safety valve, which generator is connected to the reactor and associated with a standby cooling unit. The method includes: detecting a primary/secondary leak in the steam generator; automatically stopping the reactor and isolating the broken steam generator; bringing the corresponding standby cooling unit online; monitoring the primary pressure and, once the primary pressure has passed below the set pressure of the safety valves of the steam generators, isolating the standby cooling unit of the broken steam generator; and continuing to passively cool the reactor with the remaining steam generators and cooling unit.

2. 发明授权

US09892805B2 Underground nuclear power plant 有权
公开(公告)号：US09892805B2
公开(公告)日：2018-02-13
申请号：US14382683
申请日：2012-07-19
申请人： Javier Larrion
发明人： Javier Larrion
IPC分类号： G21C13/02 , G21C15/18 , G21C9/02 , A62B1/02 , B66B5/02 , C06C5/00 , G21D1/00 , G21D1/02 , G21D3/06 , B66B11/04
CPC分类号： G21C15/18 , A62B1/02 , B66B5/027 , B66B11/0492 , C06C5/00 , G21C9/022 , G21C13/02 , G21D1/00 , G21D1/02 , G21D3/06 , Y02B50/146 , Y02B50/148 , Y02E30/40
摘要： A nuclear power plant having buried buildings that include a containment building housing a nuclear reactor, a power generation building housing turbines, and a nuclear material storage building. A borated cooling water tank is located above the containment building and can gravity feed water thereto through cooling pipes. Steam exhaust pipes extend from the containment building to the bottom of the water tank. A float and valve arrangement provides seawater to keep the water tank at a constant water level. Horizontal tunnels have manually operated hatches to isolate the different buildings from one another. Vertical tunnels have gravity elevators.

3. 发明授权

US09881702B2 Hydraulic control unit and method of shutting down a nuclear reactor using the same 有权
公开(公告)号：US09881702B2
公开(公告)日：2018-01-30
申请号：US14565819
申请日：2014-12-10
申请人： Kenneth Allan Morgan , Filemon Tecson Cabrera , Randy Morris Brown
发明人： Kenneth Allan Morgan , Filemon Tecson Cabrera , Randy Morris Brown
IPC分类号： G21C7/16 , G21C9/02 , G21C7/36 , G21D3/06 , F15B1/02 , F15B1/10 , G21C7/08
CPC分类号： G21C7/16 , F15B1/022 , F15B1/103 , F15B2201/205 , F15B2201/3153 , G21C7/08 , G21C7/36 , G21C9/02 , G21D3/06 , G21Y2002/40 , G21Y2004/30 , Y02E30/40
摘要： A method of shutting down a nuclear reactor may include compressing a scram gas that is in fluid communication with a scram accumulator. The scram accumulator defines a chamber therein and contains bellows within the chamber. The bellows are configured to hold a scram liquid in isolation of the scram gas. The scram gas exerts a compressive force on the bellows in a form of stored energy. The method may additionally include releasing the stored energy in response to a scram signal such that the scram gas expands into the chamber of the scram accumulator to compress the bellows and expel the scram liquid from the scram accumulator to insert control rods into a core of the nuclear reactor.

4. 发明授权

US09812226B2 Arrangement and method for providing an emergency supply to a nuclear installation 有权
公开(公告)号：US09812226B2
公开(公告)日：2017-11-07
申请号：US14123239
申请日：2012-05-30
申请人： Frank Mekiska
发明人： Frank Mekiska
IPC分类号： G21D1/02 , G21C15/18 , G21D1/04 , G21D3/06 , F02B63/04
CPC分类号： G21C15/182 , F02B63/04 , G21D1/02 , G21D1/04 , G21D3/06 , Y02E30/40
摘要： A method of providing an emergency supply of services to a nuclear power plant having a cooling water cycle, the method including: situating a container at a remote location from the power plant, wherein the container has permanently integrated therein: a motor comprising a first shaft and a second shaft; a generator driven by the first shaft; a pump driven by the second shaft; a fuel tank connected to the motor, and supplying fuel to the motor; and a transformer connected to the generator; connecting the pump to the cooling water cycle of the nuclear power plant; using the pump to pump water from an external water feed into the cooling water cycle of the nuclear power plant.

5. 发明授权

US09761334B2 Multi stage safety injection device and passive safety injection system having the same 有权
公开(公告)号：US09761334B2
公开(公告)日：2017-09-12
申请号：US14172808
申请日：2014-02-04
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Young In Kim , Keung Koo Kim , Cheon Tae Park , Seung Yeop Yoo , Young Min Bae , Joo Hyung Moon , Soo Jai Shin , Han Ok Kang , Jun Lee , Won Jae Lee , Tae Wan Kim , Keun Bae Park , Ju Hyeon Yoon
IPC分类号： G21C15/18 , G21D3/06
CPC分类号： G21C15/18 , G21D3/06 , Y02E30/40
摘要： The present disclosure may disclose a multi stage safety injection device and a passive safety injection system having the same, including a safety injection tank formed to contain coolant to be injected into a reactor vessel by a gravitational head of water when an accident occurs in which the pressure or water level of the reactor vessel is decreased, a pressure balance line connected to the reactor vessel and safety injection tank to form a pressure balance state between the reactor vessel and the safety injection tank, a safety injection line connected to a lower end portion of the safety injection tank and the reactor vessel to inject coolant to the reactor vessel in a pressure balance state between the reactor vessel and the safety injection tank, and a flow control line extended from the safety injection line to an inner portion of the safety injection tank, and provided with safety injection ports into which coolant is injected at predetermined heights, respectively, to reduce the flow rate of coolant injected into the reactor vessel step by step according to the water level reduction of the safety injection tank, in order to inject coolant to the reactor vessel at multi stages.

6. 发明授权

US09728281B2 Auxiliary condenser system for decay heat removal in a nuclear reactor 有权
公开(公告)号：US09728281B2
公开(公告)日：2017-08-08
申请号：US13766693
申请日：2013-02-13
申请人： Babcock & Wilcox mPower, Inc.
发明人： John J Koestner
IPC分类号： G21C9/00 , G21C15/18 , G21D3/06 , G21C1/32 , G21D1/02
CPC分类号： G21C15/18 , G21C1/32 , G21C15/182 , G21D1/02 , G21D3/06 , Y02E30/40
摘要： A nuclear reactor includes an internal steam generator and a nuclear core disposed in a containment structure. A condenser is disposed outside the containment structure, and includes a condenser inlet line tapping off a steam line connected to the steam generator outside the containment structure, and a condensate injection line conveying condensate from the condenser to the integral steam generator. Isolation valves are located outside the containment structure on a feedwater line, the steam line, and the condensate injection line. The valves have an operating configuration in which the isolation valves on the feedwater and steam lines are open and the isolation valve on the condensate injection line is closed, and a heat removal configuration in which the isolation valves on the feedwater and steam lines are closed and the isolation valve on the condensate injection line is open.

7. 发明申请

US20160284429A1 SAFETY SYSTEM FOR A NUCLEAR POWER PLANT AND METHOD FOR OPERATING THE SAME 有权
标题翻译：一种核电厂的安全系统及其操作方法
公开(公告)号：US20160284429A1
公开(公告)日：2016-09-29
申请号：US14671172
申请日：2015-03-27
申请人： Mitsubishi Electric Power Products, Inc.
发明人： Gilbert William REMLEY , Kenneth SCAROLA
IPC分类号： G21D3/06
CPC分类号： G21D3/06 , G21C7/36 , G21C17/10 , G21D3/001 , Y02E30/39
摘要： A safety system for a nuclear power plant includes first through fourth sensors; a first division, including a first calculation module that determines first and second calculation results based on signals from the first and second sensors, a first data-sharing module for sharing the first and second calculation results with a second division, and a first voting logic for generating a first safety demand signal based on the first through fourth calculation results; and the second division, including a second calculation module for determining the third and fourth calculation results based on signals from the third and fourth sensors, a second data-sharing module for sharing the third and fourth calculation results with the first division, and a second voting logic for generating a second safety demand signal based on the first, second, third, and fourth calculation results, wherein the first through fourth sensors each monitor the same plant parameters.
摘要翻译：核电厂的安全系统包括第一至第四传感器; 第一分区，包括基于来自第一和第二传感器的信号确定第一和第二计算结果的第一计算模块，用于通过第二分区共享第一和第二计算结果的第一数据共享模块，以及第一表决逻辑用于基于第一到第四计算结果产生第一安全需求信号; 以及第二分割部，包括：第二计算模块，用于基于来自第三传感器和第四传感器的信号确定第三和第四计算结果;第二数据共享模块，用于与第一分区共享第三和第四计算结果，第二计算模块，用于基于第一，第二，第三和第四计算结果产生第二安全需求信号的投票逻辑，其中第一至第四传感器各自监视相同的工厂参数。

8. 发明申请

US20160247588A1 RADIOACTIVE IODINE ADSORBENT, AND METHOD FOR TREATING RADIOACTIVE IODINE 审中-公开
标题翻译：放射性碘吸收剂，以及用于治疗放射性碘的方法
公开(公告)号：US20160247588A1
公开(公告)日：2016-08-25
申请号：US15029642
申请日：2014-08-22
申请人： RASA INDUSTRIES, LTD.
发明人： Toshiki KOBAYASHI , Koji ENDO
IPC分类号： G21F9/02 , B01J20/28 , B01D53/82 , B01J20/18 , G21D3/06 , B01D53/68
CPC分类号： G21F9/02 , B01D53/685 , B01D53/82 , B01D2253/108 , B01D2257/202 , B01J20/186 , B01J20/28004 , B01J20/28011 , G21C9/00 , G21D3/06 , Y02E30/40
摘要： Provided is a radioactive iodine adsorbent capable of adsorbing radioactive iodine more effectively than in the conventional art, and removing hydrogen, which is a factor in nuclear reactor accidents. A granulated radioactive iodine adsorbent of zeolite X, wherein ion exchange sites of the zeolite X are substituted with silver so that a size of minute pores of the zeolite X is suited to a size of a hydrogen molecule, and the radioactive iodine adsorbent has a silver content of 36 wt % or more when dried, a particle size of 10×20 mesh, a hardness of 94% or more, and a water content of 12 wt % or less when dried at 150° C. for 3 h and thereby reduced in weight.
摘要翻译：提供了能够比常规技术更有效地吸收放射性碘的放射性碘吸附剂，并且除去作为核反应堆事故的因素的氢。沸石X的粒状放射性碘吸附剂，其中沸石X的离子交换位置被银取代，使得沸石X的微小孔的尺寸适合于氢分子的大小，并且放射性碘吸附剂具有银干燥后含量为36重量％以上，粒径为10×20目，硬度为94％以上，水分含量为12重量％以下，在150℃干燥3小时，从而降低重量。

9. 发明申请

US20160189811A1 REMOTE MONITORING OF CRITICAL REACTOR PARAMETERS 审中-公开
标题翻译：关键反应器参数的远程监测
公开(公告)号：US20160189811A1
公开(公告)日：2016-06-30
申请号：US14973299
申请日：2015-12-17
申请人： NuScale Power, LLC
发明人： Jason Pottorf , Ted Hough
IPC分类号： G21C17/003 , G21C17/00
CPC分类号： G06F11/00 , G21C17/00 , G21D1/00 , G21D3/04 , G21D3/06 , Y02E30/40
摘要： A nuclear reactor instrumentation system and method, including a backup power source, a wireless transmitter, and various system sensors is configured to identify a loss of normal power to a nuclear reactor instrumentation system and cause power to be provided from the backup power source to the wireless transmitter in order to transmit data from nuclear reactor instrumentation sensors to a remote location via the wireless transmitter.
摘要翻译：包括备用电源，无线发射器和各种系统传感器的核反应堆仪表系统和方法被配置为识别对核反应堆仪表系统的正常功率的损失，并且使得从备用电源向无线发射机，以便通过无线发射机将数据从核反应堆仪表传感器传输到远程位置。

10. 发明授权

US09368240B2 Control system for nuclear facilities 有权
标题翻译：核设施控制系统
公开(公告)号：US09368240B2
公开(公告)日：2016-06-14
申请号：US13813472
申请日：2011-08-02
申请人： Masafumi Utsumi , Hidekazu Satake , Masaru Shimizu
发明人： Masafumi Utsumi , Hidekazu Satake , Masaru Shimizu
IPC分类号： G21C7/36 , G21D3/04 , G21C17/00 , G21D3/00 , G21D3/06
CPC分类号： G21D3/04 , G21C7/36 , G21C17/00 , G21D3/001 , G21D3/06 , Y02E30/39
摘要： Provided are a safety protection system facility 43 outputting a normal actuating signal S1 in a case where the safety protection system facility 43 controls actuation of a unit provided in a nuclear facility to a safe side based on an abnormality detecting signal output at the time of occurrence of an abnormality in the nuclear facility, and where this causes the unit to be actuated normally, and a CCF countermeasure facility 44 outputting a CCF-case actuating signal S2 actuating the unit to a safe side in a case where the CCF countermeasure facility 44 determines from output results of the abnormality detecting signal and the normal actuating signal S1 that the unit is not actuated normally at the time of occurrence of the abnormality in the nuclear facility.
摘要翻译：在安全保护系统设备43基于在发生时产生的异常检测信号输出的情况下，将设置在核设施中的单元的动作安全地控制到安全侧的情况下，设置有输出正常启动信号S1的安全保护系统设备43 在核设施中发生异常，并且这导致单元被正常地致动，并且CCF对策设施44在CCF对策设备44确定的情况下输出致动该单元的CCF壳启动信号S2到安全侧从异常检测信号的输出结果和正常的启动信号S1开始，在核设施发生异常时该单元不正常地被致动。

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