I-slurry, ingxube ehlukahlukene yezinhlayiya eziwuketshezi neziqinile, ithuthwa kabanzi ezimbonini ezifana nezezimayini, ukumba uwoyela, ubunjiniyela bamakhemikhali, kanye nokwelashwa kwamanzi amdaka. Ukulinganisa ukugeleza okunembile kwe-slurry kubalulekile ekulawuleni inqubo, ukwenza ngcono izindleko, kanye nokuvikela imishini. Ama-flowmeter endabuko avame ukuba nenkinga yokuba lukhuni kwe-slurry, i-viscosity ephezulu, kanye nokuqukethwe kwezinhlayiya eziqinile. Kodwa-ke, ama-flowmeter e-Doppler ultrasonic avele njengendlela ethembekile, esebenzisa umphumela we-Doppler ukuze anqobe lezi zinselele.
Isimiso esiyinhloko sokusebenza kwama-flowmeter e-Doppler ultrasonic sincike ekushintsheni kwama-frequency okubangelwa izinhlayiya ezihambayo ku-slurry. Lapho isignali ye-ultrasonic ene-frequency ehleliwe ikhishwa epayipini, ihlakaza izinhlayiya eziqinile ezilengisiwe noma amabhamuza ku-slurry. Isignali eboniswayo idlula ekushintsheni kwama-frequency—eyaziwa ngokuthi i-Doppler shift—uma kuqhathaniswa nesignali ekhishwayo. Ngokubala lo mehluko wama-frequency usebenzisa ifomula ethi Δf=2f₀·v·cosθ/c (lapho i-f₀ iyi-frequency yokukhishwa, i-v iyi-slurry velocity, i-θ iyi-engeli ephakathi kwe-ultrasonic beam kanye nesiqondiso sokugeleza, kanye ne-c iyi-speed yomsindo), i-flowmeter ithola ngokunembile i-slurry velocity futhi ibala izinga lokugeleza ngokuhlanganisa indawo ye-cross-sectional yepayipi.
Ukulinganisa okungaphazamisi kungenye yezinzuzo ezivelele kakhulu zama-flowmeter e-Doppler ultrasonic ezinhlelo zokusebenza ze-slurry. Ngokungafani namadivayisi ahlaselayo adinga ukuguqulwa kwephayiphi, lawa ma-flowmeter asebenzisa izinzwa ze-clamp-on ezifakwe ngaphandle odongeni lwephayiphi. Lo mklamo uqeda ukuxhumana okuqondile ne-slurry e-abrasive, ugwema ukuguguleka kwezinzwa, ukugqwala, kanye nezingozi zokuvuza kwephayiphi. Ukufakwa kulula ngaphandle kokuphazamisa ukukhiqizwa, okwenza kube kuhle kakhulu ekufakeni kabusha izinhlelo zokuthutha ze-slurry ezikhona.
Ubuchwepheshe obuthuthukisiwe bokucubungula isignali buthuthukisa ukuthembeka kwama-flowmeter e-Doppler ultrasonic ezindaweni eziyinkimbinkimbi ze-slurry. Izinto ezintsha ezifana ne-Refractive Spread Spectrum Analysis (RSSA) zivumela idivayisi ukuthi ibambe futhi ihlaziye amasignali aboniswayo ngemvamisa ebanzi, ikhulise amandla e-ultrasonic avela ezinhlayiyeni futhi ithuthukise ukuphindaphindwa kokulinganisa. Lawa ma-flowmeter aphinde abe namakhono aqinile okuphazamisa i-electromagnetic kanye nesikhathi sokuhlunga esilungisekayo kanye nempendulo, avumelane nezakhiwo ze-slurry ezahlukahlukene njengosayizi wezinhlayiyana (0.1-1000μm) kanye nokuhlushwa.
Ezisetshenzisweni ezisebenzayo, ama-flowmeter e-Doppler ultrasonic adlala indima ebalulekile ezimbonini eziningi. Ezimayini, aqapha ukuthuthwa kwe-slurry ye-tailings ukuze avimbele ukuvinjelwa kwamapayipi okubangelwa ukugeleza okunganele. Ekubholeni uwoyela, alinganisa ngokunembile ukugeleza kodaka lokubhoboza ukuze athuthukise ukusebenza kahle kokubhoboza futhi aqinisekise ukuqina kwe-wellbore. Izitshalo zokwelapha amanzi angcolile zithembele kuzo ukulandelela ukugeleza kwe-sludge slurry, zisekela ukulawulwa kwenqubo kanye nokuhambisana nemithethonqubo yemvelo. Amamodeli afana nochungechunge lwe-Flow P-500 anikeza izinketho zokufaka ezihlukahlukene (ezilungisiwe, eziphathwayo, ezifakwe odongeni) kanye nezixhumanisi zokukhipha idatha (4-20mA, Modbus RTU RS485), ezihlanganiswa kalula nezinhlelo zokulawula zezimboni.
Naphezu kwezinzuzo zazo, izinto ezithile ezibalulekile ukuze kusebenze kahle. I-slurry kumele ibe nokuhlushwa okwanele kwezinhlayiya ezilengisiwe noma amabhamuza ukuze kukhiqizwe izimpawu ezibonakalayo ezisebenzayo—izinhlayiya ezimbalwa kakhulu zingaholela ekungalungini kokulinganisa. Izinto zombhobho, ukujiya kodonga, kanye nesimo somphezulu nakho kuthinta ukungena kwesignali, kudinga indawo efanele yenzwa kanye nokulinganiswa. Ukugcinwa njalo, nakuba kuncane uma kuqhathaniswa namamitha avamile, kuhlanganisa ukuhlanzwa kwenzwa kanye nokuqinisekiswa ukuqinisekisa ukuzinza kwesikhathi eside.
Njengoba izimboni zidinga izixazululo zokulinganisa ukugeleza ezinembile nezihlala isikhathi eside, ama-flowmeter e-Doppler ultrasonic ayaqhubeka nokuguquka. Amandla awo okusingatha izimo ezinzima ze-slurry, kuhlanganiswe nomklamo ongaphazamisi kanye nokucubungula kwesignali okuthuthukisiwe, kuwenza abe ukukhetha okuthandwayo kwezinqubo zezimboni zesimanje. Ngokunikeza idatha yokugeleza yesikhathi sangempela nethembekile, lawa madivayisi anegalelo ekuthuthukisweni kokusebenza kahle, izindleko zokulungisa ezincishisiwe, kanye nokuphepha okuthuthukisiwe ezinhlelweni zokuthutha ze-slurry.
Isikhathi sokuthunyelwe: Jan-16-2026