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：US20140334591A1

公开(公告)日：2014-11-13

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

IPC: G21C15/18

CPC classification number: G21C15/18 ,  G21C13/02 ,  G21C15/12 ,  G21D3/06 ,  Y02E30/40

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.

Abstract translation: 本发明提供了一种无源容纳喷雾系统，包括：喷雾冷却剂存储单元，其与容纳反应堆容器的容纳物连通并且保持喷射冷却剂存储单元与容纳物之间的压力平衡; 安装在容纳物内的喷射管，使得当发生事故时，由于在容纳物内的压力增加，从喷雾冷却剂储存单元供应的冷却剂通过喷射管喷射到容纳物中; 以及连接管，其一端以这样的方式插入喷雾冷却剂存储单元中，以便提供冷却剂流动的流动路径，另一端以喷射管连接到冷却剂 通过其中的连接管被动地供应到喷管。

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：US20170309354A1

公开(公告)日：2017-10-26

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: G21C17/032 ,  G21C15/02 ,  G21C17/00

CPC classification number: G21C17/032 ,  F22B37/00 ,  G21C1/32 ,  G21C15/02 ,  G21C17/002 ,  G21D1/006 ,  Y02E30/40

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.