管道系统中的安装效应分析

421LÜYu-kun,ZHANGJian,KANGLe-jia,LIChun-xi,YingBo-fen(DepartmentofPowerEngineering,NorthChinaElectricPowerUniversity,Baoding071003,China)Theresultsofpipelineinrealcalculationareoftendifferentfromthedesignstandard,becauseinstallationeffectsexitbetweenthetwonearsubassemblies.ThepaperusethenumericalsoftwarenamedFLUENTtocalculatesomedifferentinstallationforms,suchasvalvesandsyphon,valvesandnozzleandsoon.Resultsmakeknownthatthelossisnotalwaysaslessassmallerdistancebetweenthenearsubassemblies.Ithasitsownchangingdirection.Installationsomeofthesubassembliescorrectlycansaveenergyabout8%inthesesubassembliesfunction.installationeffects;pipeline;energysaving;installationforms;CFD42210%10%5%10D1000mm1000800mm20m/sFLUNET1000800mm800500mm1000800mm2000800mm2000mmk-e1z=0Fig1Equivalencespeedssubsectionininterfacez=02Fig2Therelationsbetweenpresslossandthedistancefromthevalvetosyphon2.2.12z=0mz0.2m2.2.24232.2.32.3.1112.3.23Fig3presslossdistributingindifferentdistances4z=0Fig4Equivalencespeedssubsectionininterfacez=05z=0Fig1Equivalencespeedssubsectionininterfacez=03342424454698Pa33.63.2FLUENTCFDS.KouidriT.Belamri.OnaGeneralMethodofUnsteadyPotentialCalculationAppliedtotheCompressionStagesofaTurbomachine—PartII:ExperimentalComparison,JournalofFluidsEngineering.2001.[2],,..2004.4[3],..2004.2.[4]FullerEJ,SmithCE.IntegratedCFDmodelingofgasturbinecombustors[J].AAA-93-21961993.[5]