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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
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： 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
Abstract: 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：US10541058B2
公开(公告)日：2020-01-21
申请号：US15505019
申请日：2015-08-19
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： Young In Kim , Suhn Choi , Keung Koo Kim , Young Min Bae , Soo Jai Shin
Abstract: 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：US10319481B2
公开(公告)日：2019-06-11
申请号：US14272421
申请日：2014-05-07
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： Young In Kim , Soo Jai Shin , Han Ok Kang , Keung Koo Kim , Ju Hyeon Yoon , Tae Wan Kim , Jae Joo Ha
Abstract: Provided is a passive containment spray system including: a spray coolant storage unit that communicates with a containment accommodating a reactor vessel and maintains equilibrium of pressure between the spray coolant storage unit and the containment; a spray pipe that is installed within the containment in such a manner that when an accident occurs, a coolant supplied from the spray coolant storage unit is sprayed into the containment through the spray pipe due to an increase in pressure within the containment; and a connection pipe one end of which is inserted into the spray coolant storage unit in such a manner as to provide a flow path along which the coolant flows and the other end of which is connected to the spray pipe in such a manner that the coolant is passively supplied to the spray pipe through the connection pipe therein.
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Patent Agency Ranking
公开(公告)号：US10811147B2
公开(公告)日：2020-10-20
申请号：US15108767
申请日：2014-12-29
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： 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
Abstract: 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
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： 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
Abstract: 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：US10325688B2
公开(公告)日：2019-06-18
申请号：US15327355
申请日：2015-07-22
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： 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
Abstract: 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：US10062462B2
公开(公告)日：2018-08-28
申请号：US14469499
申请日：2014-08-26
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： 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
CPC classification number: G21D3/04 , G21C9/00 , G21C9/004 , G21C13/02 , G21C15/18 , G21D1/02 , Y02E30/40
Abstract: 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.
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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
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： 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: G21C15/18
Abstract: 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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