公开(公告)号：US20200072566A1

公开(公告)日：2020-03-05

申请号：US16669727

申请日：2019-10-31

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Juhyeon YOON ,  Young In KIM

IPC: F28F13/06 ,  F28F9/02 ,  F28D9/00 ,  F28F3/04

Abstract: A heat exchanger for a steam generator according to one embodiment of the present invention comprises a plate and channels formed on the plate by an photo-chemical etching method, wherein the channels comprise: a primary heat transmission section formed in a manner of having a bent or curved flow path so as to be extended longer than the length at which one side and the other side are connected in a straight line; and a flow path resistance section, formed having a smaller width than the width of the channels formed on the primary heat transmission section and being connected to the one side of the primary transmission section in a manner of having a bent or curved flow path so as to be extended longer than the length at which an inlet and an outlet are connected in a straight line.

公开(公告)号：US20170148533A1

公开(公告)日：2017-05-25

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

CPC classification number: G21C15/18 ,  G21C1/326 ,  G21Y2002/206 ,  G21Y2004/40 ,  Y02E30/40

Abstract: The present invention relates to a passive heat removal system which circulates cooling fluid via a main water supply line, connected to the lower inlet of a steam generator, and a main steam pipe, connected to the top outlet of the steam generator, to the steam generator, in order to remove sensible heat of a reactor coolant system and residual heat of a core, the passive heat removal system comprising: supplementary equipment for receiving surplus cooling fluid or supplying supplementary cooling fluid in order to maintain the flow rate of the cooling fluid within a predetermined range, wherein the supplementary equipment comprises: a supplementary tank, installed at a predetermined height between the lower inlet and the top outlet of the steam generator, for receiving the surplus cooling fluid or supplying the supplementary cooling fluid, passively, depending on the flow rate of the cooling fluid; a first connection pipe, connected to the main steam pipe and the supplementary tank, for forming a flow path to allow the cooling fluid, exhausted to the main steam pipe from the steam generator, to flow to the supplementary tank; and a second connection pipe connected to the supplementary tank and the main water supply pipe for forming a supply flow path of the supplementary cooling fluid supplied from the supplementary tank.

公开(公告)号：US20150221403A1

公开(公告)日：2015-08-06

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 ,  G21F1/04

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.

Abstract translation: 本发明提供了一种减少放射性物质的设备，包括：冷却水存储单元，其安装在容纳物内并形成以存储冷却水; 边界单元，形成容纳物内的放射性物质的边界，并围绕安装在安全壳内的反应堆冷却剂系统，以防止放射性物质从反应堆冷却剂系统或与反应堆冷却剂系统连接的管道释放到容纳物; 与边界单元的内部空间连接的连接管和冷却水存储单元，用于将边界单元和冷却水存储单元之间的压力差引起的流体流从边界单元引导到冷却水存储单元 ; 以及喷射单元，其被设置为浸没在存储在冷却水存储单元中的冷却水中并与连接管连接，以将已经通过连接管的流体和流体中包含的放射性物质喷射到冷却水存储单元 。

公开(公告)号：US20230003464A1

公开(公告)日：2023-01-05

申请号：US17857585

申请日：2022-07-05

Applicant: Korea Atomic Energy Research Institute

Inventor： Hyunjun CHO ,  June Woo KEE ,  Seok KIM ,  Young In KIM ,  Joo Hyung MOON ,  Yunbum PARK ,  Soo Jai SHIN ,  Seungyeob RYU ,  Gilho LEE ,  Minkyu LEE ,  Cheong Bong CHANG ,  Hun Sik HAN ,  Sung Deok HONG

IPC: F28F3/08

Abstract: A heat exchanger includes a first flow path member including a first plate having a first flow path portion providing a plurality of flow paths through which a first fluid flows, and a first bonding plate diffusion-bonded to the first plate to cover the first flow path portion; and a second flow path member including a second plate having a second flow path portion providing a plurality of flow paths through which a second fluid for exchanging heat with the first fluid flows. The first flow path member and the second flow path member are diffusion-bonded to each other.

公开(公告)号：US20220415529A1

公开(公告)日：2022-12-29

申请号：US17849489

申请日：2022-06-24

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Hyunjun CHO ,  June Woo KEE ,  Seok KIM ,  Young In KIM ,  Joo Hyung MOON ,  Yunbum PARK ,  Soo Jai SHIN ,  Seungyeob RYU ,  Minkyu LEE ,  Cheongbong CHANG ,  Hun Sik HAN ,  Sung Deok HONG

IPC: G21C15/18 ,  G21C15/14 ,  G21C15/243

Abstract: A heat exchanger includes a body having an inlet header through which a fluid is introduced, and an outlet header through which the fluid is discharged; and one or more plates accommodated in the body and provided with flow path modules providing flow paths for the fluid introduced through the inlet header to flow to the outlet header. The heat exchanger further includes at least one flow path adjuster each having at least a portion thereof accommodated in the body and being movable or rotatable to open or close a part or all of the flow paths or to change directions of the flow paths so that a flow of the fluid is adjusted.

公开(公告)号：US20160282064A1

公开(公告)日：2016-09-29

申请号：US15026938

申请日：2014-09-29

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Juhyeon YOON ,  Young In KIM

IPC: F28F13/06 ,  F28F3/04 ,  F28D9/00

CPC classification number: F28F13/06 ,  F28D9/0037 ,  F28D2021/0064 ,  F28D2021/0085 ,  F28F3/048 ,  F28F9/026

Abstract: A heat exchanger for a steam generator according to one embodiment of the present invention comprises a plate and channels formed on the plate by an photo-chemical etching method, wherein the channels comprise: a primary heat transmission section formed in a manner of having a bent or curved flow path so as to be extended longer than the length at which one side and the other side are connected in a straight line; and a flow path resistance section, formed having a smaller width than the width of the channels formed on the primary heat transmission section and being connected to the one side of the primary transmission section in a manner of having a bent or curved flow path so as to be extended longer than the length at which an inlet and an outlet are connected in a straight line.

Abstract translation: 根据本发明的一个实施例的用于蒸汽发生器的热交换器包括通过光化学蚀刻方法在板上形成的板和通道，其中，所述通道包括：初级传热部分，其形成为具有弯曲 或弯曲的流动路径，以便比一侧和另一侧以直线连接的长度延伸得更长; 以及流路阻力部，其形成为具有比形成在一次传热部上的通道的宽度小的宽度，并且以具有弯曲或弯曲的流动路径的方式连接到主传动部的一侧， 延伸长于入口和出口以直线连接的长度。

公开(公告)号：US20140226778A1

公开(公告)日：2014-08-14

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

IPC: G21C15/18

CPC classification number: G21C15/18 ,  G21D3/06 ,  Y02E30/40

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.

Abstract translation: 本公开可以公开一种多级安全注射装置和具有该多级安全注射装置的被动安全注射系统，包括安全注射罐，该安全注射罐形成为当发生事故时容纳被重力水头注入到反应器容器中的冷却剂， 反应器容器的压力或水位降低，连接到反应堆容器和安全注射罐的压力平衡管线在反应堆容器和安全注射罐之间形成压力平衡状态，连接到下端部分的安全注入管线 的安全注射槽和反应堆容器，以在反应堆容器和安全注射罐之间的压力平衡状态下将冷却剂注入反应器容器，以及从安全注射管线延伸到安全注射器的内部的流量控制管线 并且分别设置有分别以预定高度注入冷却剂的安全注入口，以减少 根据安全注射罐的水位降低逐步注入反应堆容器中的冷却剂的流量，以便将多个阶段的冷却剂喷射到反应堆容器中。

公开(公告)号：US20130343504A1

公开(公告)日：2013-12-26

申请号：US13845531

申请日：2013-03-18

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Young Min BAE ,  Young In KIM ,  Keung Koo KIM ,  Seung Yeop YOO

IPC: G21C15/18

CPC classification number: G21C15/18 ,  G21C1/326 ,  Y02E30/40

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20180233240A1

公开(公告)日：2018-08-16

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: G21C15/18 ,  G21C15/02 ,  G21D3/04 ,  G21C15/243

CPC classification number: G21C15/182 ,  F02G1/043 ,  G21C1/32 ,  G21C1/326 ,  G21C9/012 ,  G21C15/02 ,  G21C15/185 ,  G21C15/243 ,  G21C15/26 ,  G21D1/02 ,  G21D1/04 ,  G21D3/04 ,  Y02E30/40

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：US20170263340A1

公开(公告)日：2017-09-14

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

Abstract: The present disclosure relates to a passive safety system which uses a heat exchanger together with a thermoelectric element, and a nuclear power plant comprising the same. Disclosed are a passive safety system and a nuclear power plant comprising the same, the passive safety system comprising: a heat exchanger; a thermoelectric element; and a fan unit. The heat exchanger is formed at a space inside or outside a sealed housing, and in the heat exchanger, atmosphere is introduced and heat exchange is carried out in order to lower the pressure or temperature of the atmosphere inside the housing if an accident occurs in a reactor coolant system or a secondary system disposed inside the housing. The thermoelectric element is disposed in the heat exchanger, and when a cooling fluid, for performing heat exchange with the atmosphere, performs heat exchange with the atmosphere, the thermoelectric element is configured to generate electricity due to a temperature difference between the atmosphere and the cooling fluid. The fan unit is connected to the thermoelectric element via an electricity path so as to receive electricity generated by the thermoelectric element, and is configured to increase the flow rate of the atmosphere or the cooling fluid which passes through the heat exchanger such that the heat exchange of the atmosphere and the cooling fluid can be smoothly carried out.