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【英文标准名称】:Measurementofliquidflowinclosedconduitsbyweighingmethod;Errata
【原文标准名称】:在封闭导管中用称重法测量液体流量.正误表
【标准号】:ASMEMFC-9MErrata-1989
【标准状态】:现行
【国别】:美国
【发布日期】:1989
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:计算方法;管道;称重方法;液体;流量测量;流量率;流量测量技术
【英文主题词】:weighingmethods;liquids;flowmeasuringtechniques;flowrates;pipelines;flowmeasurements;methodsofcalculation
【摘要】:ThisStandardspecifiesamethodofliquidflowratemeasurementinclosedconduitsbymeasuringthemassofliquiddeliveredintoaweighingtankinaknowntimeinterval.Itdealsinparticularwiththemeasuringapparatus,procedure,andmethodforcalculatingtheflowrateandtheuncertaintiesassociatedwiththemeasurement.Themethoddescribedmaybeappliedtoanyliquid,providedthatitsvaporpressureissuchthatanyescapeofliquidfromtheweighingtankbyvaporizationisnotsufficienttoaffecttherequiredmeasurementaccuracy.ClosedweighingtanksandtheirapplicationtotheflowmeasurementofliquidsofhighvaporpressurearenotconsideredinthisStandard.ThisStandardconsidersonlythemeasurementtechniquesanddoesnotaddressanypossiblehazardsinvolvedinhandlingtheliquidinvolved.Theoretically,thereisnolimittotheapplicationofthismethod,whichisusedgenerallyinfixedlaboratoryinstallationsonly.However,foreconomicreasons,typicalhydrauliclaboratoriesusingthismethodcanproduceaccurateflowratesof500kg/s(3300lbm/sec)orless.Owingtoitshighpotentialaccuracy,thismethodisoftenusedasaprimarymethodforcalibrationofothermethodsordevicesformassflowratemeasurementorvolumetricflowratemeasurement,providedthatthedensityoftheliquidisknownaccurately.Itmustbeensuredthatthepipelineisrunningfullwithnoairorvaporpocketspresentinthemeasuringsection.
【中国标准分类号】:A52
【国际标准分类号】:17_120_10
【页数】:1P.;A4
【正文语种】:英语