公开(公告)号：US09852817B2

公开(公告)日：2017-12-26

申请号：US14518987

申请日：2014-10-20

Applicant: Korea Atomic Energy Research Institute

Inventor： Jae-Seon Lee ,  Jong-Wook Kim ,  Tae-Wan Kim ,  Suhn Choi ,  Keung-Koo Kim ,  Jong In Kim

IPC: G21C7/14 ,  G21C15/08

CPC classification number: G21C7/14 ,  G21C15/08 ,  Y02E30/39

Abstract: Disclosed is a control rod drive mechanism. More specifically, the control rod drive mechanism includes a guide member 100 disposed in a nuclear reactor to receiving a drive shaft 2; a latch assembly 200 disposed in the guide member 100 to enable the drive shaft 2 to be withdrawn and inserted; a supporting member 300 connected to the guide member 100 to cover the drive shaft 2 and to support the latch assembly 200; and a plurality of coil housings 400 spaced apart and connected to the guide member 100 to cover the latch assembly 200, and each having a coil 410 built therein.

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

IPC: G21C17/00 ,  G21C17/032 ,  G21C15/02 ,  G21D1/00 ,  G21C1/32 ,  F22B37/00

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.

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.

公开(公告)号：US10665355B2

公开(公告)日：2020-05-26

申请号：US15513278

申请日：2015-09-09

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Young In Kim ,  Suhn Choi ,  Keung Koo Kim ,  Young Min Bae ,  Hun Sik Han

IPC: G21C9/00 ,  G21C15/18 ,  G21C1/32 ,  G21C15/26 ,  G21C9/012 ,  G21D1/02 ,  G21D1/04 ,  G21C15/02 ,  G21C15/243 ,  G21D3/04 ,  F02G1/043

Abstract: 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.

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

IPC: G21C15/18 ,  G21C15/24

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.

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.