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1. 发明公开

US20240379252A1 SAFETY PROTECTION DEVICE 审中-公开
公开(公告)号：US20240379252A1
公开(公告)日：2024-11-14
申请号：US18692893
申请日：2021-12-01
申请人： Mitsubishi Electric Corporation
发明人： Susumu OKUDA
IPC分类号： G21D3/06
CPC分类号： G21D3/06
摘要： This safety protection device includes: a limitation circuit for performing limitation so that a determination result of a voting circuit does not depend on only outputs of the second determination circuits from outside of the safety protection device, is provided to the voting circuit or at a preceding stage or a subsequent stage of the voting circuit. The voting circuit is imparted with a function of executing a limiting function only when abnormality of a process parameter is detected by a signal from a detector connected to the own device, thereby preventing the function of the own device from being limited or disabled by only a signal from another device.

2. 发明公开

US20240296967A1 METHODS AND SYSTEMS FOR PREDICTING FATIGUE ACCUMULATION 审中-公开
公开(公告)号：US20240296967A1
公开(公告)日：2024-09-05
申请号：US18399016
申请日：2023-12-28
申请人： GE-Hitachi Nuclear Energy Americas LLC
发明人： Panagiotis TSILIFIS , Ahmad Waleed Ahmad Foaad AMER , KMK Genghis KHAN
IPC分类号： G21D3/06 , G01M5/00 , G21C17/112 , G21D3/00
CPC分类号： G21D3/06 , G01M5/0033 , G21C17/112 , G21D3/001
摘要： A method of identifying at least one critical location on a physical structure includes receiving operational information related to an operation of the physical structure, the operational information including different time instances of the operation of the physical structure and the operation of the physical structure at different operational levels; predicting damage to the physical structure based on the operational information, predicted operation of the physical structure with at least one of the different operational levels, and at least one model of the physical structure such that initiation of the damage at a plurality of locations of the physical structure is predicted independent of a proximity of the sensors to each of the plurality of locations; and identifying the at least one critical location on the physical structure based on the predicted damage.

3. 发明授权

US10043596B2 Water-air combined passive feed water cooling apparatus and system 有权
公开(公告)号：US10043596B2
公开(公告)日：2018-08-07
申请号：US14287551
申请日：2014-05-27
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Tae-Soon Kwon , Kihwan Kim , Hyun Sik Park , Sung Won Bae , Yusun Park
IPC分类号： G21C15/18 , G21D3/06
CPC分类号： G21C15/18 , G21C15/185 , G21D3/06 , Y02E30/40
摘要： Disclosed herein is a water-air combined passive feed water cooling apparatus including a water cooling heat exchanger connected to the inside of a containment building to cool down heat of a steam generator using a water cooling method, a cooling tank including the water cooling heat exchanger therein and storing cooling water condensing main steam generated by the steam generator, an evaporative steam pipe connected to the cooling tank, the evaporative steam pipe, into which steam of the cooling water generated by the water cooling heat exchanger in the cooling tank flows, an air cooling heat exchanger connected to the evaporative steam pipe and cooling down and liquefying the steam flowing into the evaporative steam pipe, and a condensed water collecting pipe for refilling the cooling tank with the steam liquefied by the air cooling heat exchanger.

4. 发明授权

US09715949B2 Radiation monitor 有权
公开(公告)号：US09715949B2
公开(公告)日：2017-07-25
申请号：US14884177
申请日：2015-10-15
申请人： Mitsubishi Electric Corporation
发明人： Masaki Taguchi , Kenichi Moteki
IPC分类号： G21C17/112 , G21C17/00 , G21D3/06
CPC分类号： G21C17/112 , G01T1/00 , G01T7/00 , G21C17/00 , G21D3/06
摘要： The radiation monitor includes: a shutter; a calculation section; an AC solenoid; a temperature switch which is attached to the AC solenoid; a circuit protector which has a contact and is connected in series to the AC solenoid; and a mode selection switch connected in series to the AC solenoid. The shutter is maintained in a closed state when the mode selection switch is set to a normal mode; the mode selection switch is changed from the normal mode to a check radiation source mode, thereby flowing an AC current through the AC solenoid to change the shutter from the closed state to an opened state; and the contact of the temperature switch is reversed from the opened state to the closed state, thereby disconnecting the contact of the circuit protector to interrupt the AC current that flows through the AC solenoid.

5. 发明申请

US20170133111A1 PASSIVE DEPRESSURIZATION SYSTEM FOR PRESSURIZED CONTAINERS 审中-公开
公开(公告)号：US20170133111A1
公开(公告)日：2017-05-11
申请号：US15118202
申请日：2014-05-05
申请人： ASVAD INT, S.L.
发明人： Arnaldo Laborda Rami
IPC分类号： G21C15/18 , G21D3/06
CPC分类号： G21C15/18 , G21D3/06 , Y02E30/40
摘要： The depressurization system comprises a main valve (8) provided with a pneumatic actuator with an opening spring (10) which can be connected at one side to a pressurized container (1) housing a gas inside it and at the other side to the atmosphere, defining this opening spring (10) a predetermined mechanical pressure, so when the pressure inside the pressurized container (1) is bigger than the predetermined mechanical pressure, the main valve (8) remains closed, and when the pressure inside the pressurized container (1) is lower than the predetermined mechanical pressure, the main valve (8) opens, allowing the pressurized gas from container (1) be discharged into the atmosphere.It does not require any external power supply for their main operation, allowing to fulfil appropriately their role in accident scenarios, even with total loss of electric power.

6. 发明申请

US20160260507A1 CONTAINMENT FILTERED VENTING SYSTEM (CFVS) FOR NUCLEAR POWER PLANT 审中-公开
标题翻译：用于核电厂的集装式过滤净化系统（CFVS）
公开(公告)号：US20160260507A1
公开(公告)日：2016-09-08
申请号：US14433533
申请日：2015-03-03
申请人： FNC Technology Co., Ltd.
发明人： BYUNG CHUL LEE , DOO YONG LEE , TONG KYU PARK , YOUNG SUK BANG , JUNG HEE HA , WOO WYOUNG JUNG , SO EUN SHIN
IPC分类号： G21C13/02 , B01D53/04 , B01D21/26 , B01D45/16 , G21C9/004 , G21C13/024
CPC分类号： G21C13/022 , B01D21/0012 , B01D21/267 , B01D45/16 , B01D47/10 , B01D53/04 , B01D53/70 , B01D2253/102 , B01D2253/108 , B01D2257/11 , B01D2257/2068 , G21C9/004 , G21C13/024 , G21C19/303 , G21D3/06 , Y02E30/40
摘要： Disclosed is a containment filtered venting system (CFVS) for a nuclear power plant, which may include a filtering and venting container which is configured to store the components of the filtered venting system; an inlet pipe which is connected to the filtering and venting container and a reactor building; combined nozzles which are connected to the inlet pipe and are submerged under a filtering solution filled in part of the filtering and venting container; a cyclone separator which is configured to remove larger size substances in droplets and aerosols mixed with the filtering solution from the combined nozzles and guide to a metal filter; a metal filter which is connected to the top of the cyclone separator and is configured to filer impurities mixed in the residual droplets and aerosols; a molecular sieve which is configured to remove organic iodine from exhaust gas filtered by the metal filter; and an outlet pipe which serves to connect the filtering and venting container and a stack.
摘要翻译：公开了一种用于核电站的安全壳过滤排气系统（CFVS），其可以包括过滤和通风容器，其被配置为存储过滤的通风系统的部件; 连接到过滤和排放容器的入口管和反应堆建筑物; 组合喷嘴连接到入口管并浸没在填充在过滤和排放容器的一部分中的过滤溶液下; 旋风分离器，其被构造成从组合的喷嘴中除去与过滤溶液混合的液滴中的较大尺寸的物质和气溶胶并引导到金属过滤器; 金属过滤器，其连接到旋风分离器的顶部并且构造成将杂质混合在残留液滴和气溶胶中; 分子筛，其被配置为从由金属过滤器过滤的废气中除去有机碘; 以及用于连接过滤和排放容器和堆叠的出口管。

7. 发明授权

US09406408B2 Passive system for cooling the core of a nuclear reactor 有权
公开(公告)号：US09406408B2
公开(公告)日：2016-08-02
申请号：US14918665
申请日：2015-10-21
申请人： Westinghouse Electric Company LLC
发明人： Alexander W. Harkness
IPC分类号： G21C15/18
CPC分类号： G21C15/18 , G21C19/07 , G21D3/06 , Y02E30/32
摘要： A system for passively cooling nuclear fuel in a pressurized water reactor during refueling that employs gravity and alignment of valves using battery reserves or fail in a safe position configurations to maintain the water above the reactor core during reactor disassembly and refueling. A large reserve of water is maintained above the elevation of and in fluid communication with the spent fuel pool and is used to remove decay heat from the reactor core after the reaction within the core has been successfully stopped. Decay heat is removed by boiling this large reserve of water, which will enable the plant to maintain a safe shutdown condition without outside support for many days.

8. 发明申请

US20160118147A1 Passive System for Cooling the Core of a Nuclear Reactor 有权
标题翻译：用于冷却核反应堆核心的被动系统
公开(公告)号：US20160118147A1
公开(公告)日：2016-04-28
申请号：US14918665
申请日：2015-10-21
申请人： WESTINGHOUSE ELECTRIC COMPANY LLC
发明人： Alexander W. Harkness
IPC分类号： G21C15/18
CPC分类号： G21C15/18 , G21C19/07 , G21D3/06 , Y02E30/32
摘要： A system for passively cooling nuclear fuel in a pressurized water reactor during refueling that employs gravity and alignment of valves using battery reserves or fail in a safe position configurations to maintain the water above the reactor core during reactor disassembly and refueling. A large reserve of water is maintained above the elevation of and in fluid communication with the spent fuel pool and is used to remove decay heat from the reactor core after the reaction within the core has been successfully stopped. Decay heat is removed by boiling this large reserve of water, which will enable the plant to maintain a safe shutdown condition without outside support for many days.
摘要翻译：一种用于在加油期间在加压水反应堆中被动地冷却核燃料的系统，其使用蓄电池储备的重力和对准阀或在安全位置构型中失效，以在反应堆拆卸和加油期间将水保持在反应堆堆芯上方。大量储备的水被保持在废燃料池的高度和流体连通之外，并且在核心中的反应已经成功地停止之后被用于去除反应堆堆芯的腐蚀热。通过煮沸大量储备的水来消除朽烂的热量，这将使得工厂能够在没有外部支持的情况下保持安全关闭条件多天。

9. 发明申请

US20150243383A1 WATER-AIR COMBINED PASSIVE FEED WATER COOLING APPARATUS AND SYSTEM 审中-公开
标题翻译：水 - 空气组合被动进料水冷却装置和系统
公开(公告)号：US20150243383A1
公开(公告)日：2015-08-27
申请号：US14287551
申请日：2014-05-27
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Tae-Soon KWON , Kihwan KIM , Hyun Sik PARK , Sung Won BAE , Yusun PARK
IPC分类号： G21C15/18
CPC分类号： G21C15/18 , G21C2015/185 , G21D3/06 , Y02E30/40
摘要： Disclosed herein is a water-air combined passive feed water cooling apparatus including a water cooling heat exchanger connected to the inside of a containment building to cool down heat of a steam generator using a water cooling method, a cooling tank including the water cooling heat exchanger therein and storing cooling water condensing main steam generated by the steam generator, an evaporative steam pipe connected to the cooling tank, the evaporative steam pipe, into which steam of the cooling water generated by the water cooling heat exchanger in the cooling tank flows, an air cooling heat exchanger connected to the evaporative steam pipe and cooling down and liquefying the steam flowing into the evaporative steam pipe, and a condensed water collecting pipe for refilling the cooling tank with the steam liquefied by the air cooling heat exchanger.
摘要翻译：本发明公开了一种水 - 空气组合无源给水冷却装置，其包括连接到容纳建筑物的内部的水冷式热交换器，以使用水冷方式冷却蒸汽发生器的热量，包括水冷却热交换器存储由蒸汽发生器产生的冷凝水主蒸汽，连接到冷却罐的蒸发蒸汽管，蒸发蒸汽管，由冷却罐中的水冷却热交换器产生的冷却水的蒸汽流动，连接到蒸发蒸气管的空气冷却热交换器，冷却并液化流入蒸发蒸汽管的蒸汽，以及冷凝水收集管，用于通过空气冷却热交换器液化的蒸汽来重新填充冷却罐。

10. 发明申请

US20150194226A1 REACTOR CONTAINMENT PRESSURE SUPPRESSION 审中-公开
标题翻译：反应器容纳压力抑制
公开(公告)号：US20150194226A1
公开(公告)日：2015-07-09
申请号：US14170727
申请日：2014-02-03
申请人： Babcock & Wilcox mPower, Inc.
发明人： Robert P Martin , Michael J Edwards
IPC分类号： G21C11/00
CPC分类号： G21C13/02 , G21C9/004 , G21D3/06 , Y02E30/40
摘要： A nuclear reactor is surrounded by a reactor radiological containment structure. A spent fuel pool is adjacent to and outside of the reactor radiological containment structure. The spent fuel pool may also be contained in its own radiological containment structure. A valved steam pipe runs from the reactor containment structure into the spent fuel pool. During a reactor containment overpressure event, a valve on the steam pipe is opened to allow steam from the reactor containment structure to discharge into (e.g. sparge into) the spent fuel pool. In an alternative embodiment suitable for use in a two-pack nuclear power plant, steam pipes connect the reactor radiological containment structures of the two nuclear reactors, and isolation valves on the steam pipes are opened in response to an overpressure condition in one reactor containment structure in order to discharge steam into the other reactor containment structure.
摘要翻译：一个核反应堆被一个反应堆放射性遏制结构所包围。废燃料池与反应堆放射性容纳结构相邻并且在其外部。乏燃料池也可能包含在其自身的放射性遏制结构中。有阀门的蒸汽管道从反应堆容纳结构延伸到乏燃料池中。在反应堆容纳超压事件期间，蒸汽管上的阀打开以允许来自反应堆容纳结构的蒸汽排放到（例如喷射）废燃料池中。在适用于双组件核电站的替代实施例中，蒸汽管连接两个核反应堆的反应堆放射性容纳结构，并且响应于一个反应堆容纳结构中的超压状况而打开蒸汽管上的隔离阀以将蒸汽排放到另一个反应堆容纳结构中。

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