池式快堆中间热交换器气体夹带现象研究现状

Research Status of Gas Entrainment in Intermediate Heat Exchanger of Pool Type Fast Reactor

快中子反应堆是第四代先进核能系统的推荐堆型。在池式快堆中,大量设备穿透反应堆堆池的自由液面,使得自由液面可能产生波动、环流以及漩涡等现象,进而可能导致反应堆中间热交换器入口窗进入气体,威胁反应堆安全。国内外参与快堆设计建造的相关国家针对该气体夹带现象进行了深入的理论和实验研究。本文介绍了各个国家的研究现状,对我国相关研究工作的开展具有借鉴意义。

The fast reactor is the recommended reactor type for the fourth generation advanced nuclear energy system.In the pool type fast reactor,a large number of devices penetrate the free surface of the reactor stack,which may cause fluctuations in the free liquid surface,circulation,and vortices,which may cause the inlet window of the reactor intermediate heat exchanger to enter the gas and threaten the safety of the reactor.Domestic and foreign countries involved in the design and construction of fast reactors have carried out in-depth theoretical and experimental studies on this gas entrainment phenomenon.This article describes the research status of various countries and has implications for the development of related research work in China.