Slurry, musanganiswa wezvimedu zvakasiyana-siyana zvemvura nezvidimbu zvakasimba, inotakurwa zvakanyanya mumaindasitiri akadai sekuchera migodhi, kuchera mafuta, makemikari, uye kurapwa kwemvura yakasviba. Kuyera kuyerera kweslurry nemazvo kwakakosha pakudzora maitiro, kugadzirisa mutengo, uye kudzivirira michina. Michina yemagetsi inowanzo tambura nekukwesha kweslurry, kusimba kwakanyanya, uye huwandu hwezvimedu zvakasimba. Zvisinei, michina yemagetsi yeDoppler ultrasonic yakabuda seimwe nzira yakavimbika, ichishandisa Doppler effect kukunda matambudziko aya.
Musimboti wekushanda kweDoppler ultrasonic flowmeters unoenderana nekuchinja kwema frequency kunokonzerwa nekufamba kwema slurry. Kana chiratidzo che ultrasonic chine frequency yakatarwa chikaburitswa mupaipi, chinoparadzira ma slid particles kana ma bubbles ari muslurry. Chiratidzo chinoratidzwa chinoshanduka frequency—chinozivikanwa seDoppler shift—zvichienderana nechiratidzo chinoburitswa. Nekuverenga musiyano uyu wema frequency uchishandisa fomura Δf=2f₀·v·cosθ/c (apo f₀ iri frequency yekubuda, v iri slurry velocity, θ iri angle iri pakati pe ultrasonic beam ne flow direction, uye c iri kumhanya kweruzha), flowmeter inowana slurry velocity nemazvo uye inoverenga flow rate nekubatanidza nzvimbo ye cross-sectional yepaipi.
Kuyera kusingapindiri ndeimwe yezvakanakira zvikuru zveDoppler ultrasonic flowmeters pakushandisa slurry. Kusiyana nemidziyo inopinzwa inoda kugadziriswa kwepombi, flowmeters idzi dzinoshandisa ma clamp-on sensors akaiswa kunze kwepombi pamadziro. Dhizaini iyi inobvisa kusangana zvakananga ne abrasive slurry, kudzivirira kupera kwema sensor, ngura, uye njodzi dzekubuda kwepombi. Kuisa kwacho kuri nyore pasina kukanganisa kugadzirwa, zvichiita kuti ive yakakodzera kugadzirisa masisitimu ekutakura slurry aripo.
Tekinoroji dzepamusoro dzekugadzirisa masaini dzinowedzera kuvimbika kweDoppler ultrasonic flowmeters munzvimbo dzakaoma dzeslurry. Zvishandiso zvitsva zvakaita seRefractive Spread Spectrum Analysis (RSSA) zvinoita kuti mudziyo ukwanise kubata nekuongorora masaini anoratidzwa newide-frequency, zvichiwedzera simba re ultrasonic kubva muzvikamu uye zvichivandudza kudzokororwa kwekuyera. Aya ma flowmeters anewo simba rakasimba rekudzivirira electromagnetic interference uye nguva inogadziriswa yekusefa uye yekupindura, zvichichinjika kune akasiyana ma slurry properties akadai se particle size (0.1-1000μm) uye concentration.
Mukushandiswa kwazvinoitwa, maDoppler ultrasonic flowmeters anoita basa rakakosha mumaindasitiri akasiyana-siyana. Mukuchera, anotarisa kutakurwa kwetsvina yemumapombi kudzivirira kuvharika kwemapaipi kunokonzerwa nekusakwana kwekumhanya kwekuyerera. Mukuchera mafuta, anoyera nemazvo kuyerera kwematope ekuboorera kuti anyatsoita kuti kubhoorera kushande zvakanaka uye kuve nechokwadi chekuti kugadzikana kwemugodhi. Zvivakwa zvekuchenesa mvura yakasviba zvinovimba nazvo kuti zvitevedzere kuyerera kwetsvina yemumapombi, zvichitsigira kudzora maitiro uye kutevedzera mitemo yezvakatipoteredza. Mamodheru akadai seFlow P-500 series anopa sarudzo dzakasiyana siyana dzekuisa (dzakagadziriswa, dzinotakurika, dzakaiswa pamadziro) uye data output interfaces (4-20mA, Modbus RTU RS485), zvichibatanidzwa zvakanaka nemaindasitiri ekudzora masystem.
Pasinei nezvakanakira, zvimwe zvinhu zvinokosha kuti pave nekushanda zvakanaka. Slurry inofanira kunge iine huwandu hwakakwana hwezvimedu zvakamiswa kana mabubbles kuti ibudise zviratidzo zvinoratidzwa zvinobudirira—zvimedu zvishoma zvinogona kukonzera kusakwana kwekuyera. Zvinhu zvepaipi, ukobvu hwemadziro, uye mamiriro epamusoro zvinokanganisawo kupinda kwezviratidzo, zvichida nzvimbo yakakodzera ye sensor uye calibration. Kugadziriswa nguva dzose, kunyangwe kuri kushoma kana tichienzanisa nemamita echinyakare, kunosanganisira kuchenesa sensor uye kusimbiswa kuti ive nechokwadi chekugadzikana kwenguva refu.
Sezvo maindasitiri achida mhinduro dzekuyera kuyerera dzakanyatsojeka uye dzinogara kwenguva refu, maDoppler ultrasonic flowmeters ari kuramba achichinja. Kugona kwavo kubata mamiriro akaoma ekutsvedza, pamwe chete nekugadzirwa kusingapindi uye kugadzirisa masaini epamusoro, kunoita kuti vave sarudzo inofarirwa kune maindasitiri emazuva ano. Nekupa data rekuyerera rinoshanda panguva chaiyo uye rakavimbika, zvishandiso izvi zvinobatsira mukuvandudza mashandiro, kuderedza mari yekugadzirisa, uye kuchengetedzeka kuri nani mumasisitimu ekutakura slurry.
Nguva yekutumira: Ndira-16-2026