asto
bemeteredwithothermeai.e.thisisasingleparametertwo-phaseflowmeter.
2.thesampletubetypehavingtestedtheextractingbehaviorofconventionalsampletubesystematically,anewreformedonewascotructed,whichhasa“s”frontport,andamixerisalsoaddedinfrontofthesampletube.quitestableextractionratiowereaearedoverabiganofflowrates．
3.therotationaldrumtype.inordertoavoidtheinfluenceofflowregimesonextractingeffectively,thethesisbrokethroughtheconventionalmaerofflowdistribution,whichdivideflowonlyfrom“ace”,andtriedtoextractflowby“time”sharingforthefirsttime.theextractionstreamisproportionallyobtainedbyaccuratelycontroltheextractiontimefractioninwhichtotalflowiscompletelyconductedintotheextractionloop.theextractionratioisequaltothetimefractionandindependentofflowpatter.becausethetimefractioncanbeeasilycontrolled,sothetaskofauringextractionratiostablebecomesmuchsimpler.thedistributorcomprisesofarotationaldrumandshell．theshellistosuortthedrumandhasnotanymoveablepart.theoutlineofthedrumisacylinder,theiideaceisequallysegregatedintoaseriesofsmallflowchaelswhichtwistedaroundthedrumaxis．theoutputsofthemostchaelsaredirectedtothedownstreamofthepipe,onlyafewoftheextractionchaelsarecoectedtotheseparator．astwo-phasemixturepaesthroughthechaels,thedrumwillbeforcedtorunatahigheedarounditsaxisbythefluid．withtheruingofthedrum,theentranceofeachchaelwillcontinuouslyscanovereverypointonthecrosectionofthepipe,andsothefluidatanypointonthecrosectionofthepipewillhavethesamepoibilitytoentereachchael.inarota
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