入口参数对波形板干燥器性能影响的实验研究

Experimental Study on Effect of Inlet Condition on Corrugated Plate Dryer

采用实验测量与观察分析相结合的方法,对波形板干燥器进行可视化实验研究,研究了液滴粒径、入口湿度、入口速度对干燥器性能的影响。研究得出:分离效率随着入口粒径和入口湿度的增大而上升,随入口速度增大先增大后减小;发生二次携带的临界入口速度随着入口湿度增大而降低;干燥器压降与入口风速呈平方递增关系。

The effects of inlet condition including droplet size, inlet moisture content and inlet airflow speed on corrugated plate dryer＇s performance were studied in a visualized experiment system. A laser particle sizer was used to measure water particle size distribution. The results show that： the separation efficiency increases with the increasing of droplets size and inlet moisture content, and increases with the increasing of inlet velocity firstly, then decreases after reaching the peak; the critical inlet speed resulting re-entrainment decreases with the inlet moisture content increasing; the pressure drop of dryer increases with the inlet air speed quadratically.