Iyini i-Vortex Flow Meter?

Imitha ye-vortex wuhlobo lwemitha yokugeleza kwevolumu esebenzisa into engokwemvelo eyenzeka lapho uketshezi lugeleza luzungeze into eyi-bluff.Amamitha okugeleza ama-Vortex asebenza ngaphansi komgomo wokuchithwa kwe-vortex, lapho ama-vortices (noma ama-eddies) echithwa ngokushintshana ezansi nomfula.Imvamisa yokuchithwa kwe-vortex ilingana ngokuqondile nesivinini soketshezi olugeleza kumitha.

Amamitha okugeleza kwe-Vortex afaneleka kakhulu ukukalwa kokugeleza lapho ukwethulwa kwezingxenye ezihambayo kuveza izinkinga.Zitholakala ebangeni lezimboni, ithusi, noma zonke izakhiwo zepulasitiki.Ukuzwela ekuhlukeni kwezimo zenqubo kuphansi futhi, ngaphandle kwezingxenye ezihambayo, ukuguga okuphansi uma kuqhathaniswa nezinye izinhlobo zamamitha okugeleza.

I-Vortex Flow Meter Design

Imitha yokugeleza kwe-vortex ngokuvamile yenziwa ngensimbi engagqwali engu-316 noma i-Hastelloy futhi ihlanganisa umzimba we-bluff, i-vortex sensor assembly, kanye ne-transmitter electronics - nakuba yokugcina ingafakwa futhi ukude (Umfanekiso 2).Avamise ukutholakala ngosayizi be-flange ukusuka ku-½ in. ukuya ku-12 in. Izindleko ezifakiwe zamamitha e-vortex ziyaqhudelana nalezo zamamitha we-orifice ngosayizi abangaphansi kwamayintshi ayisithupha.Amamitha omzimba we-wafer (angenawo ama-flange) anezindleko eziphansi, kuyilapho amamitha ane-flanged ekhethwa uma uketshezi lwenqubo luyingozi noma izinga lokushisa liphezulu.

Umumo womzimba we-Bluff (isikwele, unxande, okumise okwe-t, trapezoidal) kanye nobukhulu kuye kwahlolwa ukuze kuzuzwe izici ezifiselekayo.Ukuhlola kubonise ukuthi umugqa, ukukhawulelwa kwenombolo ye-Reynolds ephansi, kanye nokuzwela ekuhlanekeni kwephrofayela yesivinini kuyahluka kancane kuphela ngokuma komzimba okufiphele.Ngosayizi, umzimba we-bluff kufanele ube nobubanzi obuyingxenyana enkulu ngokwanele yobubanzi bepayipi ukuthi ukugeleza konke kubambe iqhaza ekuchithweni.Okwesibili, umzimba we-bluff kufanele ube nemiphetho evulekile ebusweni obuphezulu ukuze ulungise imigqa yokuhlukaniswa kokugeleza, kungakhathaliseki izinga lokugeleza.Okwesithathu, ubude bomzimba we-bluff ohlangothini lokugeleza kufanele bube ukuphindaphinda okuthile kobubanzi bomzimba we-bluff.

Namuhla, amamitha amaningi e-vortex asebenzisa izinzwa zohlobo lwe-piezoelectric noma i-capacitance ukuze athole ukuzungeza kwengcindezi emzimbeni we-bluff.Lezi zitholi zisabela ku-oscillation yokucindezela ngesignali ephumayo kagesi ephansi ene-frequency efana ne-oscillation.Izinzwa ezinjalo ziyi-modular, azibizi, zishintshwa kalula, futhi zingasebenza emazingeni okushisa ahlukahlukene - kusukela oketshezini lwe-cryogenic ukuya kusitimu oshisa kakhulu.Izinzwa zingatholakala ngaphakathi kwemitha yomzimba noma ngaphandle.Izinzwa ezimanzi zigcizelelwa ngokuqondile ukushintshashintsha kwengcindezi ye-vortex futhi zivalelwe ezimweni eziqinile ukuze zimelane nokugqwala nemiphumela yokuguguleka.

Izinzwa zangaphandle, ngokuvamile i-piezoelectric strain gages, zizwa ukuchitheka kwe-vortex ngokungaqondile ngamandla asetshenziswa kubha yokushela.Izinzwa zangaphandle zikhethwa ezinhlelweni eziguguleka/ezonakalisayo kakhulu ukuze kuncishiswe izindleko zokulungisa, kuyilapho izinzwa zangaphakathi zinikeza ukuhlukahluka okungcono (ukuzwela kokugeleza okungcono).Abazweli kakhulu nasekudlidlizeni kwamapayipi.Izindlu zama-elekthronikhi ngokuvamile zilinganiselwe ukuqhuma kanye nesimo sezulu, futhi iqukethe imojula yesidlulisi se-elekthronikhi, uxhumo lokunqanyulwa, kanye nesibonisi sesilinganiso sokugeleza kanye/noma ithothali.

Izitayela Zemitha Ye-Vortex Flow

Amamitha e-Smart vortex ahlinzeka ngesignali yokuphumayo yedijithali equkethe ulwazi olwengeziwe kunezinga lokugeleza nje.I-microprocessor ku-flowmeter ingalungisa ngokuzenzakalelayo izimo zepayipi eziqondile ezinganele, umehluko phakathi kobubanzi bobhore kanye ne-matin.

Izicelo Nemikhawulo

Amamitha e-Vortex awavamisile ukunconyelwa ekuhlanganisweni noma kwezinye izinhlelo zokusebenza zokugeleza ngezikhathi ezithile.Lokhu kungenxa yokuthi ukulungiselelwa kwezinga lokugeleza kwe-dribble esiteshini se-batching kungehla ngaphansi komkhawulo wenombolo yemitha ye-Reynolds.Uma isamba seqoqo lincane, iphutha eliwumphumela lingaba likhulu kakhulu.

Amagesi anomfutho ophansi (ukuminyana okuphansi) awakhiqizi i-pulse enamandla ngokwanele, ikakhulukazi uma isivinini samanzi siphansi.Ngakho-ke, kungenzeka ukuthi kumasevisi anjalo ububanzi bemitha buyoba buthaka futhi ukugeleza okuphansi ngeke kulinganiseke.Ngakolunye uhlangothi, uma ukuhluka okuncishisiwe kwamukeleka futhi imitha ilinganiswe ngokufanelekile ukuze kugeleze okuvamile, i-vortex flowmeter isengacatshangelwa.