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【英文标准名称】:MeasurementofFluidFlowinClosedConduits-TracerMethods
【原文标准名称】:封闭管道中流量的测量.跟踪法
【标准号】:ANSI/ASMEMFC-13M-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006-09-29
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:闭路的;浓缩;导(线)管;恒定的;密度;探测器;稀释法;环境问题;流量测量;流量率;流动;流体;注射;质量(物质);测量;测量时间;矿;有机物质;参数;通道;精密度;放射性;相对;痕量元素;跟踪法;体积
【英文主题词】:Closed;Concentration;Conduits;Constant;Density;Detector;Dilutionmethods;Environmentalaspects;Flow;Flowmeasurement;Flowrate;Flowrates;Flowing;Fluids;Injections;Mass;Measurement;Measuringtimes;Mineral;Organicmatters;Parameters;Passages;Precision;Radioactive;Relative;Traceelements;Tracermethods;Volume
【摘要】:Forsteadystateflowoffluidinaclosedconduit,theonlyconservedparameteristhemassrateofflow,qm.Ifthemassdensityisknown,thevolumerateofflowqvcanbededuced.Theaccuracyofflowratemeasurementwiththetracermethodsisafunctionofhowwelltheinjectedtracermaterialmixeswiththeflowingfluid.Itisalsoafunctionoftheaccuracyandprecisionofthesensingdevicesandthe(tracermethods)techniquesused.Twotracermethodsareused:a)Thedilutionmethodisbasedonaconstantrateoftracerinjectionandtheconcentrationoftracerfoundinthedownstreamconduitisameasureoftherelativeflowrates.b)Thetransittimemethoddeterminestheflowratebymeasuringthetimeittakesthetracermaterialtotravelbetweentwodetectorpointsorbetweentheinjectionpointandadetectorpointintheconduit.TheadvantagesanddisadvantagesofthesetwomethodsarereviewedinPara4.Awidevarietyoftracermaterialsmaybeused-radioactiveornon-radioactive,mineralororganicmaterials,etc.Thechoiceoftracerdependsonthepurposeofthemeasurementandenvironmentalconcerns(Para5).Theuncertaintyofthemeasurementsdependscompletelyontheaccuracyofthemethodsused(Para7).SometypicaltracerfluidsarelistedinAnnexA.
【中国标准分类号】:N12;A52
【国际标准分类号】:17_120_10
【页数】:
【正文语种】:英语