柴油机复式油气分离器设计与试验验证  

Design and Experimental Verification for Compound Oil-Gas Separator of Diesel Engine

作　　者：孙秀秀 胡茂爽 景国玺 于会超 董长龙[3] 黄立荣[3] SUN Xiuxiu;HU Maoshuang;JING Guoxi;YU Huichao;DONG Changlong;HUANG Lirong(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300400,China;Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles,Tianjin 300401,China;Hebei Huabei Diesel Engine Co.,Ltd.,Shijiazhuang 050081,China)

机构地区：[1]河北工业大学机械工程学院,天津300400 [2]天津市新能源汽车动力传动与安全技术重点实验室,天津300401 [3]河北华北柴油机有限责任公司,河北石家庄050081

出　　处：《车用发动机》2024年第5期55-60,70,共7页Vehicle Engine

基　　金：国家自然基金(52305257);河北省自然基金(E2023202168);天津市自然科学基金(22JCQNJC00110)。

摘　　要：设计了一款新型复式油气分离器,采用迷宫式结构作为粗滤组件、滤网作为精滤组件。设计开发了油气分离器部件性能试验台,通过正交试验设计方法设计多方案油气分离器,并基于部件试验台进行多方案性能试验测试。最终设计出满足要求的复式油气分离器,并通过整机试验验证其性能。结果表明,油气分离器综合性能影响因素由强到弱依次为滤网层数、滤网目数、过滤孔孔径、孔数、孔板间距。整机试验发现在300 L/min窜气量下分离效率达到了92.6%,压力损失小于3 kPa,满足发动机使用要求。A compound oil-gas separator was devised,which included the coarse filtration of labyrinthine structure and the fine filtration of filter mesh.An oil-gas separator component performance test bench was further developed,and multiple oil-gas separator schemes were designed by using the orthogonal test design method.Performance tests of multiple schemes were conducted based on the component test bench.Ultimately,a compound oil-gas separator meeting the requirements was designed and its performance was verified through engine test.The results indicate that the factors influencing the overall performance of oil-gas separator are the number of mesh layers,mesh count,filter hole diameter,number of holes,and hole plate spacing in order from strong to weak.Engine test revealed that the separation efficiency reached 92.6%and the pressure loss was less than 3 kPa at a blow-by rate of 300 L/min,which met the requirements of engine use.

关 键 词：油气分离器 结构设计 正交试验 台架试验 压力损失 分离效率 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]