WEI Yansong¹,CHEN Linlin¹,ZHENG Guangzong¹,CHEN Hao²,GU Haifeng³,JI Songtao¹

(1.China Institute of Atomic Energy,Beijing 102413,China; 2.Nuclear Power Institute of China,Chengdu 610213,China;3.College of Nuclear Science and Technology,Harbin Engineering University,Harbin 150001,China)

Abstract：Aiming at the problem of aerosol re-entrainment in containment,a visual experimental device was designed to study the bubble breaking characteristics on the surface of liquid pool.The aerosol re-entrainment experiments under typical experimental conditions were carried out to verify the feasibility of the high-speed photography method for measuring 100-micron scale aerosol droplets.The effects of aerosol type,mass concentration and water temperature on the droplet size distribution after bubble breaking were studied by high-speed photography.The results show that the aerosol type,mass concentration and water temperature all have a certain effect on the droplet size distribution.Increasing the temperature and increasing the mass concentration of the aerosol suspension make the droplet size distribution smaller.BaSO4 suspension is less likely to generate entrained droplets than TiO2 suspension.The fitting results of the droplet size distribution formula under different test conditions are better.

Keywords：bubble breaking; entrained droplets; aerosol; particle size distribution

中图分类号：O359

文献标志码：A

文章编号：1008-5548(2021)01-0050-08

DOI：10.13732/j.issn.1008-5548.2021.01.006

收稿日期：2020-07-16，修回日期：2020-10-07，在线出版时间：2020-11-02 10:30。

基金项目：国家科技重大专项,编号:2017ZX06004006。

第一作者简介：魏严凇(1983—),男,副研究员,硕士生导师,研究方向为反应堆安全与事故分析。E-mail:weiys@ciae.ac.cn。

通信作者简介：季松涛(1967—),男,工学博士,研究员,博士生导师,研究方向为反应堆安全及燃料性能。E-mail:songtaoji@139.com。