高压高频复合电场气溶胶凝并效果的实验研究

本文对净化实验室内高压高频复合电场作用下的气溶胶凝并进行了研究。通过测量室内不同粒径段颗粒物在不同初始浓度N状态下浓度减半所需的半值时间TH,计算得出对应的凝并系数K。测试结果表明:初始浓度减低,半值时间减少而凝并系数K提高,随着浓度的增加浓度减半所需的换气次数将减小,证实了高压-高频电场具有使空间微小颗粒加速凝并的作用,为工程应用奠定了理论基础。

The Research on Aerosol Coagulation under High Voltage and High Frequency Complex Electric Field

Aerosol coagulation under high voltage and high frequency complex electric field in cleaning room was studied experimentally. Based on the measured half time TH, which different particles drop half at different initial concentration, coagulation coefficient K was calculated accordingly. The results show that the half time TH will drop and coagulation coefficient K will enhance oppositely as the initial concentration reduce, and that air change rate required for concentration halved will reduce with increasing concentration. So, it is proved that high voltage and high frequency complex electric filed can accelerate tiny spatial particles coagulation. Thus, this lays theoretical foundation for practical engineering.