【英文标准名称】:MeasurementofFluidFlowUsingSmallBorePrecisionOrificeMeters
【原文标准名称】:用小孔径精确孔板流量计法测量液体流量
【标准号】:ASMEMFC-14M-2003
【标准状态】:现行
【国别】:美国
【发布日期】:2003-04-17
【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】:流动;尺寸;孔板流量计;装置;流量计;流量测量;节流孔板;定义;米制的;测量;规范(验收);压力测量(流体)
【英文主题词】:Definition;Definitions;Dimensions;Flowmeasurements;Flowmeters;Flows;Installations;Measurement;Metric;Orificeflowmeters;Orificeplates;Pressuremeasurement(fluids);Specification(approval)
【摘要】:ThisStandardspecifiesthegeometricandmethodofuse(installationandflowingconditions)fororificemetersof6mmto40mm(1/4in.to1Alt+0189in.)linesizewhentheyareinsertedinaconduitrunningfull.Italsogivesnecessaryinformationforcalculatingflowrateanditsassociateduncertainty.Itappliesonlytodifferentialpressuredevicesinwhichtheflowremainssubsonicthroughoutthemeasuringsection,flowissteadyorvariesonlyslowlywithtime,andthefluidisconsideredsingle-phase.Inaddition,theuncertaintiesaregivenintheappropriatesectionsofthisStandardforeachofthesedeviceswithinthepipesizeandReynoldsnumberlimits,whicharespecified.ThisStandardcoversdevicesforwhichsufficientcalibrationshavebeenmadetoenablethespecificationofcoherentsystemsofapplicationandtoenablecalculationstobemadewithincertainpredictablelimitsofuncetainty.Thedevicesintroducedintothepipearecalledprimarydevices.Thetermprimarydevicealsoincludesthepressuretapsandtheassociatedupstreamanddownstreampiping.Allotherinstrumentsordevicesrequiredforthemeasurementortransmissionofthedifferentialpressuresareknownassecondaryelements,andincombinationarereferredtoasthesecondarydevices.ThisStandardcoversprimarydevices;thesecondarydeviceswillbementionedonlyoccasionally,asandwhennecessaryfortheproperoperationoftheprimarydevice.ThedifferentprimarydevicescoveredinthisStandardare(a)orificeplatesusedwithcornerpressuretaps,(b)orificeplatesusedwithflangepressuretaps,(c)speciallydesignedorificemeterswithintegralfittings.
【中国标准分类号】:A52
【国际标准分类号】:91_140_60
【页数】:24P.;A4
【正文语种】:英语