往复压缩机管道振动分析及减振措施

李泽豪*顾海明()针对一往复压缩机组管道异常振动情况,通过现场测试以及对管道声学特性和结构特性的详细计算,分析了引起该管道振动的原因,提出了相应的减振措施,使问题得到了解决往复压缩机管道振动TQ05121B02546094(2010)01008703,,,,,[1],,,[2],,,[2],,11.1M,7,0.36m,,3,,31.5MPa1a,3ma.3b.4图1M型压缩机34级排气管道示意图1;2;31.234API,1表1缓冲器容积的有关数据m3340.08240.08011.40.52100.8240.801API1.3181.28210(API),,[3]:87371*,,19838,,210009Vs=8(pD)kTsM14(1)Vd=Vs/R1/4(2)Vs;pD;k;Ts,;M;Vd;R1,31.4m3,;40.52m3,,,3,43947m,4462m,331.334,2:=pmax-pminp0pmax;pmax;p0表2各管道的压力不均匀度计算值34/MPa1.51.6/%9.1812.0/%5.425.693[][1][]33[],3,4=5.42%,[]=6%=9.18%,,表3大型对置式压缩机压力不均匀度的许用值[]/MPa0.50.5~1010~2020~50[]/%2~82~62~52~41.4ANSYS3,PIPE16PIPE18,,PIPE1644表43级排气管道结构固有频率计算值Hz12341.95883.83365.26877.5213333r/min,,5.55Hz4,3,322.1,34,43413,,3,(),,()4,,,,(),882010,3,33m,,,,4,31.9588Hz,5~8Hz,,,2.2,3:a.,,;b.,;c.,;d.,3mm,[4]4,1b,,15.860Hz,,3,,:,,,,;,,,;,,1,..:,19842,,..,2007(4):453~4563,,.(API).,1987(4):22~274,..,1999,20(2):26~28(:20090907)(上转第20页)OptimumDesignoftheHorizontalInternalPressureVesselsBasedonCellularAntAlgorithmLIUYu,MALiang(UniversityofShanghaiforScienceandTechnology,Shanghai,200093,China)AbstractAmathematicalmodelofoptimumdesignwasfoundedbasedontheprinciplesandmodelsofcellularantalgorithmwiththeleastshellqualityofhorizontalinternalpressurevesselsasdesignobjectandwiththeinnerdiametersandwallthicknessesofthehorizontalinternalpressurevesselsasthemathematicalmodelofoptimumdesignofvariable,theuniversalprogramsfortheoptimumdesignofthehorizontalinternalpressurevesselswerecompiledbasedonthecellularantalgorithm,andasampleofoptimumdesignandcalculatedresultsweregiven.KeywordsPressureVesse,lCellularAntAlgorithm,OptimumDesign89371