液滴粒径分布对空化射流破乳效果的影响

Influences of Droplet Size Distribution on Demulsification Effect of Cavitation Water Jet

建立了空化射流破乳实验系统,确定了分析液滴粒径分布对空化射流破乳效果影响的实验方法,研究了液滴粒径分布对空化射流破乳效果的影响规律。结果表明:空化射流处理存在破乳和乳化两种相反的作用。对于含有较多大粒径液滴的模型乳化油废水而言,空化射流处理主要使模型乳化油废水进一步乳化,空化射流方法应用于含有较多大粒径液滴的模型乳化油废水破乳是不可行的;对于液滴粒径普遍较小的虹吸模型乳化油废水而言,空化射流处理能促进液滴的碰撞聚并,从而有利于虹吸模型乳化油废水的破乳,空化射流方法应用于液滴粒径普遍较小的虹吸模型乳化油废水的破乳具有一定的效果。

With the establishment of demulsification experiment system for cavitation water jet, the experimental method ofanalysis of droplet size distribution on demulsification effect of cavitation water jetis determined, followed by the experimental studyof droplet size distribution on demulsification effect of cavitation water jet. Results show that there are two kinds of contrary effectsfor cavitation water jet treatment, named as demulsificationand emulsification, respectively. As far as the model emulsified oil waste-water containing a lot of large droplet size droplets is concerned, cavitation water jet treatment emulsifies it more fully. Namely, cavi-tation water jet method is inapplicable to demulsification of the model emulsified oil wastewater containing a lot of large droplet sizedroplets. As far as the siphoning model emulsified oil wastewater in which there are most small droplet size droplets is concerned,cavitation water jet treatment promotes the collision and coalescence of droplets and is good for the demulsification of siphoningmodel emulsified oil wastewater. And cavitation water jet method has a demulsification effect for siphoning model emulsified oilwastewater in which there are most small droplet size droplets.