喷油螺杆压缩机用油气分离器滤芯出口孔径对分离特性的影响  

Influence on the outlet aperture size of the filter element of the oil gas separator on the separation characteristics of the fuel injection screw compressor

作　　者：刘亚莉 张潍然 张永海 陈宇慧 王会林 董华东 LIU Yali;ZHANG Weiran;ZHANG Yonghai;CHEN Yuhui;WANG Huilin;DONG Huadong(College of Energy and Power Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,Chin)

机构地区：[1]郑州轻工业学院能源与动力工程学院,河南郑州450002

出　　处：《轻工学报》2018年第4期50-56,共7页Journal of Light Industry

基　　金：河南省科技攻关计划项目(152102210148);河南省高等学校重点科研项目(16A530015);郑州轻工业学院研究生科技创新基金项目(2016044)

摘　　要：采用大涡模拟分三种出口孔径的模型,对喷油螺杆空压机用油气分离器滤芯的一次分离筒内的流场进行了对比分析.结果表明:出口孔径的尺寸对切向速度和轴向速度分布有一定的影响;对自由涡和强制涡区域、上行流下行流的数值、二次流的程度和油滴的分布等均产生一定的影响;综合各项因素可知,2 mm出口孔径有较好的分离效果.The large eddy simulation model was divided into three outlet apertures. The flow field in the prima- ry separation cylinder of the oilgas separator filter element for the fuel injection screw air compressor was corn-pared and analyzed. The results showed that the outlet aperture size was tangential speed and axis. It had a certain influence on the velocity distribution;it had certain influence on the free vortex and the forced vortexregion, the value of the upstream flow, the degree of the secondary flow and the distribution of the oil drop- lets. Based on various factors, the 2 mm aperture outlet had a good separation effect.

关 键 词：喷油螺杆压缩机 油气分离器滤芯 出口孔径 大涡模拟 Rosin-Rammler函数 离散相模型 

分 类 号：TQ051[化学工程]