液体黏度和表面张力对雾化颗粒粒径的影响  

Effects of Fluid Viscosity and Surface Tension on the Size of Atomized Droplets

作　　者：陈建文[1] 张志伟[1] 王长周[1] 宋锦春[1] 

机构地区：[1]东北大学机械工程及自动化学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2010年第7期1023-1025,共3页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50875040)

摘　　要：针对工业技术中的液体雾化过程,探讨了液体自身的物理性质如黏性力、表面张力等对雾化效果的影响情况.采用二流外混式雾化器对N46机械油与150号齿轮油等不同黏度的液体及不同表面张力的液体进行实验,采用CLY-2003型激光粒度仪测量雾化后的粒径及其分布情况.测试结果表明,黏度和表面张力都是阻碍表面波振幅增大的因素,在相同的雾化压力下,黏度和表面张力大的液体雾化颗粒粒径相对较大,即雾化效果相对较差.Aim at the industrial atomization process, the influence of surface tension, viscous drag and other physical properties of liquid on the atomizing effect were discussed. The two-flow outside-mixing atomizer was used to test the N46 lube and # 150 gear oil, for which the viscosity and surface tension are different, and the size of atomized droplets and their distributions were measured by the laser particle size analyzer CLY- and surface tension are the restricting factors to the 2003. The results showed that both viscosity increase in surface wave amplitude. Under the same atomizing pressure, the size of the droplets whose viscosity and surface tension are comparatively higher is relatively bigger, i.e., the atomizing effect is relatively poor.

关 键 词：黏度 表面张力 雾化 油雾润滑 粒径 

分 类 号：TH117.2[机械工程—机械设计及理论]