专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20210075208A1 DOUBLE INCOMING BREAKER SYSTEM FOR POWER SYSTEM OF POWER PLANT 有权
公开(公告)号：US20210075208A1
公开(公告)日：2021-03-11
申请号：US16644234
申请日：2018-08-31
申请人： KOREA HYDRO & NUCLEAR POWER CO., LTD.
发明人： Yun-Ho KIM , Han-Sang KIM , Che-Wung HA
IPC分类号： H02H3/05 , H02H7/04 , G21D3/06
摘要： The present invention is applied to a power system of a power plant including a three-winding transformer, and relates to a double incoming breaker system, including: a plurality of main circuit breakers respectively connected one by one to the plurality of first non-safety class high voltage buses and the plurality of second non-safety class high voltage buses; a plurality of auxiliary circuit breakers, one of which is connected in series to one of the plurality of main circuit breakers; a first power source measurer installed to correspond to the main circuit breaker and measuring a power source level of a non-safety class high voltage bus applied to the main circuit breaker; a second power source measurer installed to correspond to the auxiliary circuit breaker and measuring a power source level at an installed first point thereof; and a controller that outputs a first open signal to the main circuit breaker when an abnormal situation of the non-safety class high voltage bus is checked through the power source level measured by the first power source measurer, and outputs a second open signal to the auxiliary circuit breaker when it is determined that the main circuit breaker fails through the power source level at the first point measured by the second power source measurer after outputting the first open signal.

2. 发明授权

US10861610B2 Abnormality diagnosis system 有权
公开(公告)号：US10861610B2
公开(公告)日：2020-12-08
申请号：US15575591
申请日：2016-05-06
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Takashi Azuma , Kenji Mashio , Takae Yamashita , Susumu Shiizuka , Junichi Nishitani , Masafumi Utsumi , Jun Shibuya
IPC分类号： G21D3/04 , G21C17/00 , G06F16/2455 , G21D3/06 , G05B19/418 , G05B19/05 , G05B23/02
摘要： An abnormality diagnosis system for diagnosing an abnormality event in an atomic power generation plant on the basis of an abnormality indication detection result from an abnormality indication monitoring system is provided with an abnormality diagnosis control unit which acquires a parameter transition in a monitoring period from a non-detection timing to an indication detection timing, and a parameter contribution in the monitoring period and a database. The abnormality diagnosis control unit executes a matching determination between the parameter transition and parameter contribution that have been acquired from the abnormality indication monitoring system, and a parameter transition for determination and a parameter contribution for determination that have been stored in the database, and identifies an abnormality event and an abnormality indication facility that are associated with the parameter transition and parameter contribution determined to be matching.

3. 发明申请

US20180350475A1 APPARATUS AND METHOD OF EVALUATING RESPONSE TIME OF PLANT PROTECTION SYSTEM 审中-公开
公开(公告)号：US20180350475A1
公开(公告)日：2018-12-06
申请号：US15995258
申请日：2018-06-01
申请人： KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
发明人： Chang Jae LEE , Jae Hee YUN
IPC分类号： G21D3/06 , G21D3/00 , G21C17/00 , G21C9/02
摘要： Provided is an apparatus for evaluating a response time of a plant protection system. The apparatus includes: a classification module classifying a design process related to a response time requirement of each channel performing a safety function into four operations of a safety analysis operation, a system design operation, a response time analysis operation, and a response time test operation; and an integrated evaluation module determining whether a response time evaluation is proper based on a time t1 derived in the safety analysis operation, a time t2 derived in the system design operation, a time t3 derived in the response time analysis operation, and a time t4 derived in the response time test operation.

4. 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.

5. 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.

6. 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.

7. 发明申请

US20150131769A1 NUCLEAR POWER PLANT, SAFETY SYSTEM WITH FUSE ELEMENT AND GRAVITY ELEVATOR 有权
标题翻译：核电厂，具有保险丝元件和重力电梯的安全系统
公开(公告)号：US20150131769A1
公开(公告)日：2015-05-14
申请号：US14382683
申请日：2012-07-19
申请人： Javier Larrion
发明人： Javier Larrion
IPC分类号： G21C15/18 , B66B11/04 , G21D3/06 , C06C5/00 , G21C9/02 , A62B1/02 , B66B5/02
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： The present invention relates to a nuclear power plant and safety system with fuse element and gravity elevator, the buildings of the power plant subjected to contamination being buried below sea level and under borated water basins, and having a safety system free of electrical and electronic components to act in the event of possible accidents comprising, among others, means for flooding the buildings of the power plant with thermal fuses and gravity elevators for operator evacuation in the event of an emergency.
摘要翻译：本发明涉及一种具有保险丝元件和重力电梯的核电厂和安全系统，电厂遭受污染的建筑物被埋藏在海平面以下和在硼酸化的水盆下，并具有无电气和电子部件的安全系统在发生可能的事故时采取行动，其中包括使用热熔断器和重力电梯淹没发电厂的建筑物的手段，以便在紧急情况下进行操作人员疏散。

8. 发明申请

US20140219411A1 ALTERNATE PASSIVE SPENT FUEL POOL COOLING SYSTEMS AND METHODS 有权
标题翻译：替代被动燃料燃料池冷却系统和方法
公开(公告)号：US20140219411A1
公开(公告)日：2014-08-07
申请号：US13760263
申请日：2013-02-06
申请人： WESTINGHOUSE ELECTRIC COMPANY LLC
发明人： JEFFREY T. DEDERER , WILLIAM L. BROWN , FRANK VEREB
IPC分类号： G21C15/18 , G21D3/06
CPC分类号： G21C15/18 , G21C19/07 , G21C19/40 , G21D3/06 , G21Y2002/207 , Y02E30/40
摘要： The present invention relates to passive cooling systems and methods for cooling a spent fuel pool in a nuclear power plant in the absence of onsite and offsite power, e.g., in a station blackout event. The systems include a gap formed along the periphery of the spent fuel pool, a heat sink, one or more thermal conductive members, a water supply system for delivering water to at least partially fill the gap and conduct heat generated from the spent fuel pool through the gap to at least one thermal conductive member for transporting heat to the heat sink, and a thermal switch mechanism for activating and deactivating the water supply system.In particular, the passive spent fuel pool cooling systems and methods of the invention are useful when the active spent fuel pool cooling system is unavailable or inoperable.
摘要翻译：本发明涉及在没有现场和非现场功率的情况下，例如在停电事件中，用于在核电站中冷却乏燃料池的被动冷却系统和方法。这些系统包括沿着乏燃料池的周边形成的间隙，散热器，一个或多个导热构件，用于输送水至少部分地填充间隙并且传导从乏燃料池产生的热量的供水系统至少一个用于将热传递到散热器的导热构件的间隙，以及用于启动和停用供水系统的热开关机构。特别地，当活性废燃料池冷却系统不可用或不可操作时，本发明的被动乏燃料池冷却系统和方法是有用的。

9. 发明授权

US4986952A Protection system for protecting a nuclear reactor in the event of a reaction-inhibiting element falling 失效
标题翻译：在反应抑制元件掉落的情况下保护核反应堆的保护系统
公开(公告)号：US4986952A
公开(公告)日：1991-01-22
申请号：US302279
申请日：1989-01-27
申请人： Jean-Michel Bourin , Jean-Lucien Mourlevat , Gilbert Sengler
发明人： Jean-Michel Bourin , Jean-Lucien Mourlevat , Gilbert Sengler
IPC分类号： G21C7/36 , G21C9/02 , G21C17/00 , G21D3/04 , G21D3/06
CPC分类号： G21C7/36 , G21C9/02 , G21D3/04 , Y02E30/39
摘要： Protection against the consequences of a cluster of control rods falling accidentally is provided by four chains, each of which includes two neutron flux detectors (D1A, D1B), two primary treatment circuits (R1A, S1A and R1B, S1B) associated with said two detectors such that each provides a primary fall signal in the event of the flux measured by the corresponding detector decreasing rapidly, and an OR gate (P1) for providing an output fall signal from the chain in the event of at least one of said primary signals being present. The detectors (D1A, D4B, D3A, D1B, D2A, D3B, D4A and D2B) are angularly distributed around the vertical axis (A) of the core (2). A secondary treatment circuit (6) causes an emergency reactor stop to take place in the event that it receives fall signals at the outputs from at least two chains.
摘要翻译：防止一组控制棒意外掉落的后果的保护由四个链提供，每个链包括两个中子通量检测器（D1A，D1B），与所述两个检测器相关联的两个主处理电路（R1A，S1A和R1B，S1B）使得在由对应的检测器测量的通量快速下降的情况下，每个提供初级跌倒信号;以及用于在所述主信号中的至少一个的情况下提供来自所述链的输出下降信号的“或”门（P1）当下。检测器（D1A，D4B，D3A，D1B，D2A，D3B，D4A和D2B）围绕铁芯（2）的垂直轴线（A）成角度地分布。在二级处理电路（6）在至少两条链的输出处接收到跌落信号的情况下，使紧急电抗器停止发生。

10. 发明授权

US4948551A Method of protecting a pressurized water nuclear reactor against failures in its emergency stop means 失效
标题翻译：保护加压水核反应堆免受其紧急停止装置故障的方法
公开(公告)号：US4948551A
公开(公告)日：1990-08-14
申请号：US235598
申请日：1988-08-24
申请人： Olivier Onfroy
发明人： Olivier Onfroy
IPC分类号： G21C15/18 , G21C9/02 , G21D3/04 , G21D3/06
CPC分类号： G21D3/06 , G21C9/02 , Y02E30/32
摘要： In the event of an incident in the secondary cooling circuit of a nuclear reactor preventing cooling the water in the primary circuit of the steam generators (2) which are common to both circuits, an emergency stop instruction is issued in order to cause control and stop rods to fall into the core of the reactor. If this instruction is not executed, and if the reactor remains at a high power level, an instruction is issued to stop the primary pumps. A rapid increase in the temperature of the water in the core then slows down the nuclear reaction soon enough to prevent subsequent excess pressure from damaging the primary circuit. The invention is particularly applicable to electricity-generating nuclear power stations.
摘要翻译：在核反应堆的二次冷却回路发生事故的情况下，防止对两个电路共同的蒸汽发生器（2）的一次回路中的水进行冷却，发出紧急停止指令，以便控制和停止棒落入反应堆的核心。如果不执行该指令，并且如果电抗器保持在高功率电平，则发出指令来停止主泵。芯中的水的温度迅速增加，然后使核反应减慢，足以防止随后的过量压力损坏初级回路。本发明特别适用于发电核电站。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式