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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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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：US10811152B2
公开(公告)日：2020-10-20
申请号：US15513275
申请日：2015-09-10
Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Inventor： Young In Kim , Keung Koo Kim , Ju Hyeon Yoon , Suhn Choi , Hun Sik Han , Han Ok Kang
Abstract: The present invention relates to a plate heat exchanger and provides a heat exchanger and a nuclear power plant comprising same, the heat exchanger comprising: a plate unit having multiple plates overlapping one another; a flow path unit, which forms flow paths having fluids flowing therein by processing at least parts of the respective plates; and a detection flow path formed between the multiple plates so as to allow the fluids leaking from the flow paths to flow thereinto and formed so as to detect the leakage of the fluids from the flow paths.
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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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