MAO Ping1， 2， FENG Shuyan1， YANG Yi1， 2， LIU Mengchu1， ZHOU Yang1， CHEN Shouwen1， 2， WANG Zhengping1， 2
（1. School of Environmental and Biological Engineering， Nanjing University of Science and Technology， Nanjing， 210094； 2. Lianyungang Institute of Nanjing University of Science and Technology， Lianyungang， 222006， China）
Abstract：In order to know well the function and influence of atomized droplets on collection efficiency in wet sampler, the effects of different spray flow rates and spray tower sizes on collection efficiency were investigated by self-made wet sampler, and the movement of atomized droplets in spray tower with different dimensions were simulated via the Fluent software. The results indicate that the chief function of atomized droplets in spray tower is wetting coating, and the mainly function of atomized droplets in fluid reservoir is collection. However, the former contribution is greater than the latter. The collection efficiency of wet sampler can be as high as 92% with both flow rates of atomized droplets are 40 mL/min. Simulation and experimental results show that the best of dimension of the spray tower is height of 170 mm and inner diameter of 60 mm.
Keywords：wet sampler; atomized droplets; collection efficiency; analogy simulation
文章编号：1008-5548（2013）05-0025-06
DOI：10.3969/j.issn.1008-5548.2013.05.005
收稿日期：2013-05-31，修回日期：2013-07-02，在线出版时间：2013-10-25。
基金项目：江苏省环保厅环保科研项目，编号：2012015；江苏省连云港市社会发展科技项目，编号：SH1203；江苏省连云港市科技基础建设项目，编号：JC1203。
第一作者简介：茆平（1987—），男，博士研究生，主要从事纳米气溶胶的湿法采样技术研究。 E-mail：maoping100@163.com。
通信作者简介：杨毅（1973—），男，副研究员，博士生导师，主要从事微纳米气溶胶检测技术研究。 E-mail：yyi301@163.com。
