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1. 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.

2. 发明授权

US10706974B2 Passive cooling system of containment building and nuclear power plant comprising same 有权
公开(公告)号：US10706974B2
公开(公告)日：2020-07-07
申请号：US15100224
申请日：2014-12-02
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Young In Kim , Cheon Tae Park , Seung Yeob Ryu , Young Min Bae , Joo Hyung Moon , Soo Jai Shin , Hun Sik Han , Kyung Jun Kang , Young Soo Kim , Tae Wan Kim , Ju Hyeon Yoon , Keung Koo Kim , Jae Joo Ha
IPC分类号： G21C9/012 , G21C15/18 , G21C9/004
摘要： The present invention discloses a passive cooling system of a containment building, to which a plate-type heat exchanger is applied. A passive cooling system of a containment building comprises: a containment building; a plate-type heat exchanger provided to at least one of the inside and the outside of the containment building and comprising channels respectively provided to the both sides of a plate so as to be arranged dividedly from each other such that the plate-type heat exchanger carries out mutual heat exchange between the internal atmosphere of the containment building and a heat exchange fluid while maintaining a pressure boundary; and a pipe connected to the plate-type heat exchanger by penetrating the containment building so as to form the path of the internal atmosphere of the containment building or the heat exchange fluid.

3. 发明授权

US10115488B2 Passive safety equipment for a nuclear power plant 有权
公开(公告)号：US10115488B2
公开(公告)日：2018-10-30
申请号：US15024795
申请日：2014-10-02
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Hun Sik Han , Young In Kim , Kyung Jun Kang , Sung Jae Yi , Keung Koo Kim , Ju Hyeon Yoon , Jae Joo Ha , Suhn Choi , Cheon Tae Park , Seung Yeob Ryu , Joo Hyung Moon
IPC分类号： G21C15/18 , G21C1/32 , G21C15/25 , G21C15/24
摘要： The present invention provides passive safety equipment, comprising: a cooling part formed to cool a first fluid, which is emitted from a reactor coolant system or a steam generator, and a second fluid in a housing; and a circulation induction sprayer which is formed to spray the first fluid emitted from the reactor coolant system or the steam generator into the cooling part, has at least part thereof open to the inside of the housing such that the second fluid flows thereinto according to a drop in pressure caused by the spraying of the first fluid, and sprays the second fluid with the inflown first fluid.

4. 发明授权

US09583224B2 Passive safety system of integral reactor 有权
标题翻译：集成电抗器的被动安全系统
公开(公告)号：US09583224B2
公开(公告)日：2017-02-28
申请号：US13939547
申请日：2013-07-11
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Joo Hyung Moon , Won Jae Lee , Keung Koo Kim , Cheon Tae Park , Young In Kim , Sung Kyun Zee , Keun Bae Park
IPC分类号： G21C15/18 , G21C1/32
CPC分类号： G21C15/18 , G21C1/32 , Y02E30/40
摘要： A passive safety system includes a containment, a reactor in the containment, a plurality of safety injection tanks connected with the reactor and having water and nitrogen gas to supply water thereof into the reactor through a safety injection line communicating to the first safety injection line upon a loss of coolant accident, a plurality of core makeup tanks connected with the reactor to supply water thereof into the reactor through a second safety injection line communicating to a safety injection line upon the loss of coolant accident, and a plurality of passive residual heat removal systems to remove residual heat from the reactor upon the loss of coolant accident or a non-loss of coolant accident. The water in each of the safety injection tank is stably supplied to the reactor for many hours by a differential head resulting from gravity or gas pressure.
摘要翻译：被动安全系统包括容纳物，容纳物中的反应器，与反应器连接的多个安全注射罐，并具有水和氮气，以通过与第一安全注射管线连通的安全注入管线将水供应到反应器中冷却剂事故的损失，与反应器连接的多个核心化妆池，通过在冷却剂事故损失时与安全注入管线相通的第二安全注入管线将水供应到反应器中，以及多个被动残余热消除在冷却剂事故损失或不失去冷却剂事故时，从反应堆中除去残余热量的系统。每个安全注射罐中的水通过由重力或气体压力导致的差压头稳定地供应到反应器多个小时。

5. 发明授权

US10325688B2 Passive heat removal system for nuclear power plant 有权
公开(公告)号：US10325688B2
公开(公告)日：2019-06-18
申请号：US15327355
申请日：2015-07-22
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Young In Kim , Keung Koo Kim , Ju Hyeon Yoon , Jae Joo Ha , Tae Wan Kim , Cheon Tae Park , Seung Yeob Ryu , Han Ok Kang , Young Min Bae , Joo Hyung Moon , Hun Sik Han , Kyung Jun Kang , Soo Jai Shin , Seo Yoon Jung , Young Soo Kim
IPC分类号： G21C15/18 , G21C1/32
摘要： The present invention relates to a passive heat removal system which circulates cooling fluid to a steam generator via a main water supply line connected to the lower inlet of the steam generator, and a main steam pipe connected to the top outlet of the steam generator, to remove sensible heat of a nuclear reactor coolant system and residual heat of a core. The heat removal system comprises supplementary equipment for receiving surplus cooling fluid or for supplying supplementary cooling fluid in order to maintain the flow rate of the cooling fluid within a predetermined range. The supplementary equipment comprises: a supplementary tank, installed at a height between the lower inlet and the top outlet of the steam generator; a first connection pipe, connected to the main steam pipe and the supplementary tank; and a second connection pipe, connected to the supplementary tank and the main water supply pipe.

6. 发明授权

US10062462B2 Facility for reducing radioactive material and nuclear power plant having the same 有权
公开(公告)号：US10062462B2
公开(公告)日：2018-08-28
申请号：US14469499
申请日：2014-08-26
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Young In Kim , Kyung Jun Kang , Keung Koo Kim , Hun Sik Han , Ju Hyeon Yoon , Jae Joo Ha , Dae Hyun Hwang , Suhn Choi , Joo Hyung Moon , Soo Jai Shin
IPC分类号： G21D3/04 , G21D1/02 , G21C9/00 , G21C9/004 , G21C13/02 , G21C15/18
CPC分类号： G21D3/04 , G21C9/00 , G21C9/004 , G21C13/02 , G21C15/18 , G21D1/02 , Y02E30/40
摘要： The present invention provides a facility for reducing radioactive material comprising: a cooling water storage unit installed inside a containment and formed to store cooling water; a boundary unit forming a boundary of radioactive material inside the containment and surrounding a reactor coolant system installed inside the containment to prevent a radioactive material from releasing from the reactor coolant system or a pipe connected with the reactor coolant system to the containment; a connecting pipe connected with an inner space of the boundary unit and the cooling water storage unit to guide a flow of a fluid caused by a pressure difference between the boundary unit and the cooling water storage unit from the boundary unit to the cooling water storage unit; and a sparging unit disposed to be submerged in the cooling water stored in the cooling water storage unit and connected with the connecting pipe to sparge the fluid that has passed through the connecting pipe and the radioactive material contained in the fluid to the cooling water storage unit.

7. 发明授权

US09859027B2 Multi stage safety injection device and passive safety injection system having the same 有权
公开(公告)号：US09859027B2
公开(公告)日：2018-01-02
申请号：US14162677
申请日：2014-01-23
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Young In Kim , Won Jae Lee , Cheon Tae Park , Keung Koo Kim , Soo Jai Shin , Seung Yeop Yoo , Young Min Bae , Joo Hyung Moon , Ju Hyeon Yoon
IPC分类号： G21C15/18
CPC分类号： G21C15/18 , Y02E30/40
摘要： The present disclosure may disclose a multi stage safety injection device, 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 between the reactor vessel and the safety injection tank, and a set of safety injection lines connected to 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 connected to the safety injection tank with different heights to reduce a 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.

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