HydraulicsPneumatics&Seals/No.4.2023doi∶10.3969/j.issn.1008-0813.2023.04.002干式双螺杆空压机气动噪声优化设计李金禄,耿茂飞,姜慧君,王乐,崔冬,李小仨(合肥通用机械研究院有限公司压缩机技术国家重点实验室,安徽合肥230031)摘要:目前国内外干式双螺杆压缩机大多数直接采用了喷油螺杆压缩机的型线,一般通过改变齿数比,适应干式螺杆压缩机低压比和大气量的需求。通过对干式双螺杆空压机型线开展优化设计,将螺杆压缩机型线中瞬时啮合的曲线变为逐点啮合的曲线,避免压缩机螺杆齿面啮合的泵吸作用,从而降低压缩机气动噪声,改善压缩机运行环境。关键词:双螺杆;空压机;型线;泵吸作用中图分类号:TH138文献标志码:A文章编号:1008⁃0813(2023)04⁃0007⁃04AerodynamicNoiseOptimizationDesignofDryTwinScrewAirCompressorLIJin⁃lu,GENGMao⁃fei,JIANGHui⁃jun,WANGLe,CUIDong,LIXiao⁃sa(StateKeyLaboratoryofCompressorTechnology,HefeiGeneralMachineryResearchInstituteCo.,Ltd.,Hefei230031,China)Abstract:Atpresent,mostdrytwinscrewcompressorsdirectlyusetheprofileofoilinjectionscrewcompressor,generallybychangingthetoothratio,toadapttothelow⁃pressureratioofdryscrewcompressorandlargegasrequirements.Throughtheoptimizationdesignofdrytwin⁃screwaircompressorprofile,theinstantaneousmeshingcurveofscrewcompressorprofileischangedintopoint⁃by⁃pointmeshingcurve,avoidingthepumpingactionofscrewtoothsurfacemeshing,thusreducingcompressora...