Yintoni i-Vortex Flow Meter?

Imitha ye-vortex luhlobo lwemitha yokuqukuqela yomthamo esebenzisa isenzeko sendalo esenzeka xa ulwelo luhamba lujikeleze into ebluff.Iimitha zokuhamba zeVortex zisebenza phantsi komgaqo wokuchithwa kwe-vortex, apho i-vortices (okanye i-eddies) ichithwa ngokutshintshanayo ezantsi kwento.Ubuninzi bokuchithwa kwe-vortex buhambelana ngokuthe ngqo nesantya solwelo oluhamba ngemitha.

Iimitha zokuqukuqela zeVortex zifaneleke kakhulu kwimilinganiselo yokuqukuqela apho ukwaziswa kwamalungu ashukumayo kuzisa iingxaki.Zifumaneka kwibakala lamashishini, ubhedu, okanye zonke izakhiwo zeplastiki.Uvakalelo kwiiyantlukwano kwiimeko zenkqubo ziphantsi kwaye, zingenazo iindawo ezihambayo, ukunxiba okuphantsi xa kuthelekiswa nezinye iintlobo zemitha yokuhamba.

I-Vortex Flow Meter Design

Imitha yokuhamba ye-vortex ngokuqhelekileyo yenziwe nge-316 yensimbi engenasici okanye i-Hastelloy kwaye ibandakanya umzimba we-bluff, i-vortex sensor assembly, kunye ne-electronics transmitter - nangona le yokugqibela inokuphinda ifakwe kude (Umfanekiso 2).Zidla ngokufumaneka ngokobukhulu beflange ukusuka kwi-½ in. ukuya kwi-12 in. Iindleko ezifakiweyo zeemitha ze-vortex ziyakhuphisana naleyo yeemitha ze-orifice ngokobungakanani obungaphantsi kwe-intshi ezintandathu.Iimitha zomzimba we-Wafer (ezingenawo) zinexabiso eliphantsi, ngelixa iimitha ezine-flanged zikhethwa ukuba inkqubo yolwelo inobungozi okanye ikwiqondo lobushushu eliphezulu.

Iimilo zomzimba ezi-Bluff (isikwere, uxande, i-t-shaped, i-trapezoidal) kunye nemilinganiselo iye yalingwa ukuze kuphunyezwe iimpawu ezifunwayo.Uvavanyo lubonise ukuba umgca, ukulinganiselwa kwenani le-Reynolds eliphantsi, kunye novakalelo lokugqwesa iprofayile yesantya zahluka nje kancinci ngokumila komzimba we-bluff.Ngobungakanani, umzimba we-bluff kufuneka ube nobubanzi obuyiqhezu elaneleyo lobubanzi bombhobho ukuba yonke into ithatha inxaxheba ekuchitheni.Okwesibini, umzimba we-bluff kufuneka ube nemiphetho ephumayo ebusweni obuphezulu ukuze ulungise imigca yokwahlula ukuhamba, kungakhathaliseki ukuba yiyiphi isantya sokuhamba.Okwesithathu, ubude bomzimba we-bluff kwicala lokuhamba kufuneka kube yi-multiple ethile yobubanzi bomzimba we-bluff.

Namhlanje, uninzi lweemitha ze-vortex zisebenzisa i-piezoelectric okanye i-capacitance-type sensors ukubona i-oscillation yoxinzelelo ejikeleze umzimba we-bluff.Ezi zichongi ziphendula kwi-oscillation yoxinzelelo kunye nesignali ye-voltage ephantsi yokuphuma ene-frequency efana ne-oscillation.Izinzwa ezinjalo ziyimodyuli, azibizi, zitshintshwe ngokulula, kwaye zinokusebenza kuluhlu olubanzi lweqondo lokushisa - ukusuka kwi-cryogenic liquids ukuya kwi-steam eshushu kakhulu.Izivamvo zinokubekwa ngaphakathi kumzimba wemitha okanye ngaphandle.Izinzwa ezimanzi zigxininiswe ngokuthe ngqo ngokuguquguquka koxinzelelo lwe-vortex kwaye zivalelwe kwiimeko ezinzima ukuze zimelane ne-corrosion kunye nemiphumo yokuguguleka.

Izinzwa zangaphandle, ngokuqhelekileyo i-piezoelectric strain gages, iva ukuphalala kwe-vortex ngokungangqalanga ngokusebenzisa amandla akhutshwa kwi-shedder bar.Izinzwa zangaphandle zikhethwa kwizicelo ezikhukhulayo / ezinobungozi kakhulu zokunciphisa iindleko zokugcina, ngelixa ii-sensor zangaphakathi zibonelela ngoluhlu olungcono (ubuzwe obungcono bokuhamba).Kananjalo abaziva kangako kwiintshukumo zemibhobho.Izindlu zombane zidla ngokulinganiswa ngokugqabhuka kunye nemozulu, kwaye iqulethe imodyuli yothumelo lwe-elektroniki, uqhagamshelo lokuphelisa, kunye nokuzikhethela isalathisi sokuhamba kunye / okanye ithotali.

Izimbo zeMeta yokuHamba iVortex

Iimitha ze-Smart vortex zibonelela ngesignali yemveliso yedijithali equlethe ulwazi oluninzi kunezinga lokuhamba nje.I-microprocessor kwi-flowmeter inokulungisa ngokuzenzekelayo iimeko zombhobho ongonelanga, ngenxa yomahluko phakathi kobubanzi bombhobho kunye ne-matin.

Izicelo kunye neMida

Iimitha zeVortex aziqhelekanga ukucetyiswa kwi-batching okanye ezinye iinkqubo zokuhamba ezihambayo.Oku kungenxa yokuba ukusetwa kwesantya sokuhamba kwedribble kwisikhululo sokubethelela kunokuwela ngaphantsi kobuncinane bemitha bomlinganiselo wenani leReynolds.Okukhona ibhetshi iyonke incinci, kokukhona isiphumo sempazamo sibonakala sibaluleke ngakumbi.

Uxinzelelo oluphantsi (uxinzelelo oluphantsi) iigesi azivelisi i-pulse enamandla ngokwaneleyo yoxinzelelo, ngakumbi ukuba isantya solwelo sisezantsi.Ngoko ke, kunokwenzeka ukuba kwiinkonzo ezinjalo uluhlu lwemitha luya kuba lubi kwaye ukuhamba okuphantsi akuyi kulinganiswa.Kwelinye icala, ukuba ukuncitshiswa koluhlu kwamkelekile kwaye imitha ilingana ngokuchanekileyo ukuhamba okuqhelekileyo, i-vortex flowmeter isenokuthi iqwalaselwe.