【英文标准名称】:Measurementoffluidflowinclosedconduits-Guidelinesontheeffectsofflowpulsationsonflow-measurementinstruments
【原文标准名称】:封闭管道中流体流量的测量流体脉动对流量测量仪器影响的指南
【标准号】:ISO/TR3313-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-08
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC30
【标准类型】:()
【标准水平】:()
【中文主题词】:流量率;管道;测量仪器;流速;测量;脉动流动;流量测量
【英文主题词】:Flowmeasurements;Flowrate;Measurement;Measuringinstruments;Pipelines;Pulsatingflow;Velocityofflow
【摘要】:ThisTechnicalReportdefinespulsatingflow,comparesitwithsteadyflow,indicateshowitcanbedetected,anddescribestheeffectsithasonorificeplates,nozzlesorVenturitubes,turbineandvortexflowmeterswhenthesedevicesarebeingusedtomeasurefluidflowinapipe.TheseparticularflowmetertypesfeatureinthisTechnicalReportbecausetheyareamongstthosetypesmostsusceptibletopulsationeffects.Methodsforcorrectingtheflowmeteroutputsignalforerrorsproducedbytheseeffectsaredescribedforthoseflowmetertypesforwhichthisispossible.Whencorrectionisnotpossible,measurestoavoidorreducetheproblemareindicated.Suchmeasuresincludetheinstallationofpulsationdampingdevicesand/orchoiceofaflowmetertypewhichislesssusceptibletopulsationeffects.ThisTechnicalReportappliestoflowinwhichthepulsationsaregeneratedatasinglesourcewhichissituatedeitherupstreamordownstreamoftheprimaryelementoftheflowmeter.Itsapplicabilityisrestrictedtoconditionswheretheflowdirectiondoesnotreverseinthemeasuringsectionbutthereisnorestrictiononthewaveformoftheflowpulsation.TherecommendationswithinthisTechnicalReportapplytobothliquidandgasflowsalthoughwiththelatterthevaliditymayberestrictedtogasflowsinwhichthedensitychangesinthemeasuringsectionaresmallasindicatedfortheparticulartypeofflowmeterunderdiscussion.
【中国标准分类号】:A42
【国际标准分类号】:17_120_10
【页数】:40P;A4
【正文语种】:英语