Ma ultrasonic Doppler flow mita akakosha muchikamu che fluid dynamics, zvichipa kuyera kwakarurama kwe liquid flow mumashandisirwo akasiyana-siyana emaindasitiri nezvakatipoteredza. Midziyo iyi inoshandisa Doppler effect kuyera kumhanya kwezvikamu zvakasungirirwa mumvura, zvichibvumira kuverenga kwakanyatsojeka kwehuwandu hwekuyerera kwemvura. Mublog rino, tichanyatsoongorora mashandiro anoita ma ultrasonic Doppler flow mita uye kuongorora mashandisirwo adzo mumaindasitiri akadai sekurapa mvura yakasviba, mafuta negasi, uye kugadzirisa makemikari.
Pakati pe ultrasonic Doppler flowmeter ndiyo musimboti weDoppler effect, inoratidza kuti kana mafungu emvura neanoona zvichifamba zvichienderana, mafungu emvura anochinja. Mukuyera mafungu, ultrasonic transducer inoburitsa mafungu emvura anoyerera zvine mwero. Mafungu aya anosangana nezvimedu zviri mumvura (zvakadai sema sound reflectors, suspended solids, kana air bubbles akakura kupfuura 100 microns), zvichikonzera shanduko muhuwandu hunozivikanwa seDoppler shift. Nekuongorora mafungu emvura, flow meter inogona kuona kumhanya kwezvimedu uye nekudaro flow rate yemvura.
Chimwe chezvakanakira zvikuru zve ultrasonic Doppler flow mita ndiko kugona kuyera kuyerera kwezvinwiwa zvine solid particles kana air bubbles, izvo zvinogona kukonzera matambudziko kune mamwe matekinoroji ekuyera kuyerera. Semuenzaniso, mechanical flow mita dzechinyakare dzinogona kunge dzichivharika kana kuti dzisina kururama kana dzichishandiswa nezvinwiwa zvakadaro. Ultrasonic Doppler flowmeters, kune rumwe rutivi, dzinoshanda zvakanaka mumamiriro ezvinhu aya uye dzakanakira kushandiswa kunosanganisira mvura yakasviba ine suspended solids, slurry flows, kana multiphase fluids muindasitiri yemafuta negasi.
Pamusoro pekushanda kwavo kwakasiyana-siyana mukubata zvinhu zvakaoma zvemvura, maDoppler flow meter e ultrasonic anopa mhinduro yekuyera kuyerera isingapindi uye iri nyore kuchengetedza. Sensor inogona kusungirirwa kunze kwepombi, zvichibvisa kudiwa kwekusangana zvakananga nemvura inoyerera uye kuderedza njodzi yekusvibiswa kana ngura. Kuiswa uku kusingapindi zvinorevawo kuti kuyerwa kwekuyerera kunogona kuitwa pasina kukanganisa maitiro ekuyerera, zvichiita kuti maDoppler flowmeter e ultrasonic ave akakodzera kugara achitarisa uye kudzora kuyerera kwemvura mumaindasitiri.
Pamusoro pezvo, kugona kwedhijitari kugadzirisa masaini emagetsi emazuva ano eDoppler flow metres kunogonesa maficha epamusoro akadai sekunyora data, kutarisa kure, uye kubatanidzwa nemasisitimu ekudzora. Izvi zvinopa ruzivo rwechokwadi rwemafambiro ekuyerera uye zvinobatsira kuchengetedza nekugadzirisa maitiro ekuyerera. Mamita ekuyerera eDoppler eUltrasonic anopa zviyero zvakarurama kunyangwe mumamiriro ezvinhu akaoma emvura, zvichibatsira kuwedzera kushanda zvakanaka uye kuchengetedza mari mumaindasitiri anovimba nekudzora kuyerera kwakarurama.
Muchidimbu, ma ultrasonic Doppler flow metres ane basa rakakosha mukuyera nekudzora kuyerera kwemvura munzvimbo dzakasiyana dzemaindasitiri. Kugona kwawo kuyera nemazvo kuyerera kwemvura ine manzwi, zvinhu zvakasimba zvakamiswa kana mabubble emhepo anodarika 100 microns zvinoita kuti ave chishandiso chakakosha mumaindasitiri kubva pakuchenesa mvura yakasviba kusvika pakugadzira mafuta negasi. Sezvo tekinoroji ichiramba ichifambira mberi, ma ultrasonic Doppler flow metres anotarisirwa kuwedzera mashandiro awo, achipa kururama kukuru uye kunzwisisa mashandiro ekuyerera kwemvura.
Nguva yekutumira: Chivabvu-26-2024