细颗粒物电凝并实验与拓展研究  

Experiment and extended research on electrocoagulation of fine particle

作　　者：徐俊磊 许淑惠[1] 王曦[1] 徐荣吉[1] XU Junlei;XU Shuhui;WANG Xi;XU Rongji(Beijing Engineering Research Center of Sustainable Energy and Buildings,Beijing University ofCivil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学北京市建筑能源高效综合利用工程技术研究中心,北京100044

出　　处：《实验技术与管理》2021年第8期173-178,共6页Experimental Technology and Management

基　　金：北京市高校科研重大重点科研支撑计划项目(ZC01X20096)。

摘　　要：该文设计了“高压脉冲电场中细颗粒物电凝并实验”。在设定条件下,通过改变高压脉冲电源的电压、频率和占空比,研究它们对粒径为0.3μm、0.5μm、1.0μm的细颗粒物凝并效率产生的影响。实验结果表明,三种粒径细颗粒物的凝并效率随着高压脉冲电压的增加在10%的范围内上下波动,随着脉冲频率的增加逐渐下降,随着脉冲占空比的增加逐渐上升。并得出,在实验风速1.6 m/s、直流电压15 kV、脉冲正电压20 kV、脉冲频率70 Hz、脉冲占空比50%时,0.3μm、0.5μm、1.0μm细颗粒物的凝并效率分别为84.1%、84.3%和86.8%。该文还在此基础上对实验进行了拓展。In this paper,the experiment of fine particle electrocoagulation in high voltage pulsed electric field is designed.Under the set conditions,the influence of the coagulation efficiency of fine particles of 0.3μm,0.5μm and 1.0μm is studied by changing the voltage,frequency and duty cycle of the high-voltage pulse power supply.The results show that the agglomeration efficiency of three kinds of fine particles fluctuates within 10%with the increase of high-voltage pulse voltage,gradually decreases with the increase of pulse frequency,and gradually increases with the increase of pulse duty cycle.When the experimental wind speed is 1.6m/s,the direct voltage is 15 kV and the positive pedestal voltage is 20 kV,the pulse frequency is 70Hz,the pulse duty factor is 50%and the coagulation efficiencies of 0.3μm,0.5μm and 1.0μm fine particles are 84.1%,84.3%and 86.8%respectively.On this basis,the experiment is further expanded.

关 键 词：脉冲电场 细颗粒物 电凝并 拓展研究 

分 类 号：X513[环境科学与工程—环境工程]