油雾分离机理及玻纤滤纸过滤性能的研究

The Mechanism of Oil Mist Separation and the Filtration Performance of Glass Fiber Filter Paper

油雾分离技术在大型高速旋转设备的润滑系统中得到了广泛应用,研究其过滤机理能够为我国提高油雾分离技术提供理论支撑。亲和聚结法是一种有效的油雾分离方法,它通过滤材的过滤、吸附、凝结、脱附作用可以将油雾从空气中分离出来。油雾的状态,滤材平均网孔及纤维的直径,滤层的厚度等因素都将对分离效果产生影响。通过对比不同超细玻纤滤纸的油雾过滤效率及流量压差特性,结果表明在滤层厚度为5 mm时,9μm的超细纤维滤纸对油雾有很好的分离作用。该方法值得在油雾分离滤芯设计中推广应用。

Oil mist separation technology has been widely used in the lubrication system of large scale high-speed rotating equipment, and the study of its filtration mechanism can provide theoretical support for the improvement of oil mist separation technology in China. The affinity coalescence separation method is an effective method for oil mist separation, which separates oil mist from the air by filtration, adsorption, coagulation and desorption. The condition of the oil mist, the mean pore size of the filter, the diameter of the fiber and the thickness of the filter layer will influence the separation effect. By comparing the filtration efficiency and flow-differential pressure characteristics of different ultra-fine glass fiber paper, the results showed that the filter paper with mean pore size of 9μm and the thickness of the layer of 5mm had good separation effect on oil fog,. The method is worthy of popularization in oil mist separation filter design.