折板式汽液分离元件的性能

Research on Performance of Wave-plate Mist Eliminators

采用空气-水体系,对折板式汽液分离元件进行冷态模拟实验,研究了气速、液滴粒径、折板形式、间距及安装方式等参数对折板分离效率和压降的影响.结果表明,气速控制在1～6m/s,液滴粒径控制在50～80μm,折板采用立式和卧式安装,形式采用V形和W形,间距为10～50mm,对分离性能均有一定的影响,折板间距为20mm的分离元件具有较高的分离效率.通过对冷态实验数据进行数学回归分析,获得描述折板性能的经验公式,与实验值误差在10%内,同时在海水淡化中试试验装置中验证了折板式汽液分离元件的分离性能.

The influential factors on the separation property of wave-plate mist eliminator were studied with cold-state simulation experiments by using an air-water medium. The effects of operating conditions such as gas velocity and liquid droplet diameter and structural parameters such as the installation, geometry and spacing of the plate were examined. The gas velocity limit was controlled in 1-6 m/s, and the liquid droplet diameters from 50-80 μm, the plate was installed in horizontal and vertical directions, its geometry had V and W shapes, and the spacing was from 10-50 mm. The experimental results showed that there were some rules on the effects of influential factors such as gas velocity on the separation efficiency, and the spacing of 20 mm was the best arrangement. A reasonable empirical equation obtained by regressing the experimental data could predict experimental data within 10% error. A medium-scale experiment of desalination was also carried out to evaluate the separation property of the eliminator.