公开(公告)号：US10115488B2

公开(公告)日：2018-10-30

申请号：US15024795

申请日：2014-10-02

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： 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: G21C15/18 ,  G21C1/32 ,  G21C15/25 ,  G21C15/24

Abstract: 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.

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

IPC: G21C15/18 ,  G21C1/32 ,  G21C9/012 ,  G21C15/243 ,  G21D1/00 ,  F22B1/02 ,  G21C15/26 ,  G21C15/08

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.

公开(公告)号：US10762995B2

公开(公告)日：2020-09-01

申请号：US15520594

申请日：2015-10-05

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Young In Kim ,  Keung Koo Kim ,  Jae Joo Ha ,  Tae Wan Kim ,  Hun Sik Han ,  Kyung Jun Kang

IPC: G21C15/18 ,  G21C1/32 ,  G21D1/00 ,  F22D5/34 ,  F22D11/02 ,  G21C1/09 ,  G21C1/18 ,  F01K13/02 ,  F22B1/16 ,  F22B1/18 ,  F22B35/10 ,  G21C13/024 ,  G21D3/06

Abstract: The present disclosure provides a stopped cooling system including: a steam line connecting portion connected to a steam line so as to receive cooling water through the steam line connected to an outlet of a steam generator; a stopped cooling heat exchanger for receiving cooling water that enters the stopped cooling system through the steam line connecting portion, and discharging same through a passage of the heat exchanger; a stopped cooling pump activated to perform stopped cooling of the nuclear reactor upon normal stoppage of the nuclear reactor after primary cooling of the nuclear reactor cooling system or when an accident occurs, and for forming a circulating flow of cooling water that circulates between the steam generator and the stopped cooling heat exchanger; and a water supplying pipe connecting portion connected to the heat exchanger passage and a water supplying pipe, which is connected to the inlet of the steam generator, so as to supply the cooling water cooled in the stopped cooling heat exchanger to the steam generator through the water supplying pipe.

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

IPC: G21C9/012 ,  G21C15/18 ,  G21C9/004

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.

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

IPC: G21C15/18 ,  G21C1/32

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.

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

IPC: G21D3/04 ,  G21D1/02 ,  G21C9/00 ,  G21C9/004 ,  G21C13/02 ,  G21C15/18

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.