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公开(公告)号：US10229762B2
公开(公告)日：2019-03-12
申请号：US14271316
申请日：2014-05-06
发明人： Young In Kim , Keung Koo Kim , Young Min Bae , Ju Hyeon Yoon , Jae Joo Ha , Won Jae Lee , Tae Wan Kim
摘要： The present disclosure provides a cooling system of an emergency cooling tank, which enables long-term cooling without refilling cooling water, in case of the change in a quantity of heat transferred to the emergency cooling tank according to a lapse of time upon an occurrence of an accident of a nuclear reactor, and a nuclear power plant having the same. The emergency cooling tank cooling system includes an emergency cooling tank, a heat exchanging device installed to be exposed to an outside of the emergency cooling tank to operate in air, and configured to externally emit such that the operation of the emergency cooling tank is continued even without refilling the cooling water, and an opening and closing unit installed at an upper portion of the emergency cooling tank to be located higher than a water level of the cooling water.
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公开(公告)号：US10665355B2
公开(公告)日：2020-05-26
申请号：US15513278
申请日：2015-09-09
发明人： Young In Kim , Suhn Choi , Keung Koo Kim , Young Min Bae , Hun Sik Han
IPC分类号： G21C9/00 , G21C15/18 , G21C1/32 , G21C15/26 , G21C9/012 , G21D1/02 , G21D1/04 , G21C15/02 , G21C15/243 , G21D3/04 , F02G1/043
摘要： Disclosed is a nuclear power plant which drives a Stirling engine by means of heat generated in nuclear power plant safety systems during an accident, uses the resulting power directly or generates electric power so as to supply the power to the safety systems, and thus can improve economic efficiency as well as the reliability of safety systems, such as a passive safety system, by operating the safety systems without an emergency diesel generator or external electric power.
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公开(公告)号：US10541058B2
公开(公告)日：2020-01-21
申请号：US15505019
申请日：2015-08-19
发明人： Young In Kim , Suhn Choi , Keung Koo Kim , Young Min Bae , Soo Jai Shin
摘要： A passive safety system comprises a heat exchanger, a thermoelectric element, and a fan unit. The heat exchanger is located inside a containment. The heat exchanger allows for temperature of atmosphere in the containment to be reduced. The thermoelectric element is disposed within the heat exchanger. The thermoelectric element is configured to generate electricity due to a temperature difference. The fan unit receives electricity generated by the thermoelectric element. The fan unit is configured to increase flow rate of fluid inside the containment. A nuclear power plant can include the passive safety system.
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公开(公告)号：US09905320B2
公开(公告)日：2018-02-27
申请号：US13958487
申请日：2013-08-02
发明人： Young In Kim , Young Min Bae , Ju Hyeon Yoon , Keung Koo Kim
摘要： A separate type safety injection tank comprises: a coolant injection unit connected to a reactor coolant system by a safety injection pipe such that coolant stored therein is injected into the reactor coolant system by a pressure difference from the reactor coolant system when a loss-of-coolant-accident (LOCA) occurs; a gas injection unit connected to the coolant injection unit, and configured to pressurize the coolant injected into the reactor coolant system, by introducing gas stored therein to an upper part of the coolant injection unit in the loss-of-coolant-accident; and a choking device disposed between the coolant injection unit and the gas injection unit, and configured to contract a flow cross-sectional area of the gas introduced to the coolant injection unit, and configured to maintain a flow velocity and a flow rate of the gas introduced to the coolant injection unit as a critical flow velocity and a critical flow rate when a pressure difference between the coolant injection unit and the gas injection unit is more than a critical value.
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公开(公告)号：US10811147B2
公开(公告)日：2020-10-20
申请号：US15108767
申请日：2014-12-29
发明人： Young In Kim , Keung Koo Kim , Jae Joo Ha , Ju Hyeon Yoon , Young Min Bae , Soo Jai Shin , Hun Sik Han , Kyung Jun Kang , Tae Wan Kim
摘要： The present invention provides a passive residual heat removal system and an atomic power plant comprising the same, the passive heat removal system comprising: a plate-type heat exchanger for causing heat exchange between a primary system fluid or a secondary system fluid which, in order to remove sensible heat from an atomic reactor cooling material system and residual heat from a reactor core, has received the sensible heat and the residual heat, and a cooling fluid which has been introduced from outside of a containment unit; and circulation piping for connecting the atomic reactor cooling material system to the plate-type heat exchanger, thereby forming a circulation channel of the primary system fluid, or connecting a steam generator, which is arranged at the boundary between the primary and secondary systems, to the plate-type heat exchanger, thereby forming a circulation channel of the secondary system fluid.
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公开(公告)号：US09761334B2
公开(公告)日：2017-09-12
申请号：US14172808
申请日：2014-02-04
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
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.
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公开(公告)号：US09111651B2
公开(公告)日：2015-08-18
申请号：US13845531
申请日：2013-03-18
发明人： Young Min Bae , Young In Kim , Keung Koo Kim , Seung Yeop Yoo
摘要： Disclosed is a heat exchanger for a passive residual heat removal system, which improves heat transfer efficiency by expanding a heat transfer area. A heat exchange tube includes a first member connected to a steam pipe through which steam generated from a steam generator of a nuclear reactor circulates, and a second member connected to both of the first member and a feed water pipe used to supply water to the steam generator provided in the nuclear reactor, and the first member has the shape different from that of the second member, thereby expanding the heat transfer area so that the heat transfer efficiency is improved.
摘要翻译： 公开了一种用于被动式余热除热系统的热交换器，其通过扩大传热面积来提高传热效率。 热交换管包括连接到蒸汽管的第一构件，通过其从核反应堆的蒸汽发生器产生的蒸汽循环，以及连接到第一构件和用于向蒸汽供应水的给水管两者的第二构件 并且第一构件具有与第二构件的形状不同的形状，从而扩大传热面积，从而提高了传热效率。
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公开(公告)号：US10706974B2
公开(公告)日：2020-07-07
申请号：US15100224
申请日：2014-12-02
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
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.
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公开(公告)号：US10325688B2
公开(公告)日：2019-06-18
申请号：US15327355
申请日：2015-07-22
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
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.
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公开(公告)号：US09859027B2
公开(公告)日：2018-01-02
申请号：US14162677
申请日：2014-01-23
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
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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