I-Slurry, umxube owahlukeneyo wamasuntswana angamanzi naqinileyo, ithuthwa kakhulu kumashishini afana nemigodi, ukubhola ioyile, ubunjineli beekhemikhali, kunye nonyango lwamanzi amdaka. Ukulinganiswa ngokuchanekileyo kokuhamba kolusu kubalulekile ekulawuleni inkqubo, ukuphucula iindleko, kunye nokukhusela izixhobo. Ii-flowmeters zemveli zihlala zinengxaki yokuba i-slurry irhabaxa, i-viscosity ephezulu, kunye nomxholo wamasuntswana aqinileyo. Nangona kunjalo, ii-flowmeters ze-Doppler ultrasonic ziye zavela njengendlela ethembekileyo, zisebenzisa isiphumo seDoppler ukoyisa le mingeni.
Umgaqo oyintloko wokusebenza kwee-Doppler ultrasonic flowmeters uxhomekeke kutshintsho lwe-frequency olubangelwa zii-particles ezihambayo kwi-slurry. Xa isignali ye-ultrasonic ene-frequency esisigxina ikhutshwa kwipayipi, isasaza ii-particles eziqinileyo ezixhonyiweyo okanye amaqamza kwi-slurry. Isignali ebonakalisiweyo idlula kutshintsho lwe-frequency—eyaziwa ngokuba yi-Doppler shift—xa ithelekiswa nesignali ekhutshiweyo. Ngokubala lo mahluko we-frequency usebenzisa ifomyula Δf=2f₀·v·cosθ/c (apho i-f₀ yi-emission frequency, i-v yi-slurry velocity, i-θ yi-engile phakathi kwe-ultrasonic beam kunye ne-flow direction, kwaye i-c yi-speed yesandi), i-flowmeter ifumana ngokuchanekileyo i-slurry's velocity kwaye ibala ngakumbi i-flow rate ngokudibanisa indawo ye-cross-sectional yombhobho.
Ukulinganisa okungangeneleliyo yenye yezona nzuzo zibalaseleyo zeDoppler ultrasonic flowmeters kwizicelo zeslurry. Ngokungafaniyo nezixhobo ezihlaselayo ezifuna ukuguqulwa kwemibhobho, ezi flowmeters zisebenzisa ii-clamp-on sensors ezifakwe ngaphandle eludongeni lombhobho. Olu yilo lususa ukudibana ngqo neslurry erhabaxa, luthintela ukuguguleka kwesensor, ukubola, kunye neengozi zokuvuza kwemibhobho. Ukufakela kulula ngaphandle kokuphazamisa imveliso, okwenza kube yeyona ifanelekileyo yokulungisa iinkqubo zothutho lweslurry ezikhoyo.
Iitekhnoloji zokucubungula isignali eziphambili ziphucula ukuthembeka kwee-Doppler ultrasonic flowmeters kwiindawo ezintsonkothileyo ze-slurry. Uyilo olutsha olufana ne-Refractive Spread Spectrum Analysis (RSSA) luvumela isixhobo ukuba sibambe kwaye sihlalutye imiqondiso eboniswayo rhoqo, sandise amandla e-ultrasonic avela kumasuntswana kwaye siphucule ukuphindaphinda kokulinganisa. Ezi flowmeters zikwabonisa amandla okuphazamisana ne-electromagnetic kunye nexesha lokucoca elihlengahlengiswayo kunye nempendulo, zilungelelanisa neempawu ezahlukeneyo ze-slurry ezifana nobukhulu besuntswana (0.1-1000μm) kunye noxinzelelo.
Kwizicelo ezisebenzayo, iiDoppler ultrasonic flowmeters zidlala indima ebalulekileyo kumashishini amaninzi. Kwimigodi, zijonga ukuthuthwa kodaka oluvela emisileni ukuze kuthintelwe ukuvaleka kwemibhobho okubangelwa kukunganeli kokuhamba kwesantya sokuhamba. Kwimigodi yeoyile, zilinganisa ngokuchanekileyo ukuhamba kodaka lokubhola ukuze kuphuculwe ukusebenza kakuhle kokubhola kwaye kuqinisekiswe uzinzo lwe-wellbore. Izityalo zonyango lwamanzi amdaka zixhomekeke kuzo ukulandelela ukuhamba kodaka oluvela emisileni, zixhasa ulawulo lwenkqubo kunye nokuthotyelwa kwemigaqo yokusingqongileyo. Iimodeli ezifana nothotho lwe-Flow P-500 zibonelela ngeendlela ezahlukeneyo zokufakela (ezizinzileyo, eziphathekayo, ezifakelwe eludongeni) kunye ne-data output interfaces (4-20mA, Modbus RTU RS485), ezidityaniswe kakuhle neenkqubo zolawulo lwemizi-mveliso.
Nangona ziluncedo, izinto ezithile ezibalulekileyo zibalulekile ukuze kusebenze kakuhle. I-slurry kufuneka ibe noxinzelelo olwaneleyo lwee-particles ezixhonyiweyo okanye amaqamza ukuze kuveliswe imiqondiso esebenzayo ebonakalisiweyo—ii-particles ezimbalwa kakhulu zinokukhokelela ekungachanekini kokulinganisa. Izinto zepayipi, ubukhulu bodonga, kunye nemeko yomphezulu nazo zichaphazela ukungena kwesignali, zifuna indawo efanelekileyo ye-sensor kunye nokulinganiswa. Ukugcinwa rhoqo, nangona kuncinci xa kuthelekiswa neemitha zemveli, kubandakanya ukucocwa kwe-sensor kunye nokuqinisekiswa ukuqinisekisa uzinzo lwexesha elide.
Njengoko amashishini efuna izisombululo zokulinganisa ukuhamba okuchanekileyo nokuhlala ixesha elide, iiDoppler ultrasonic flowmeters ziyaqhubeka nokukhula. Amandla azo okusingatha iimeko ezinzima zokudaka, kunye noyilo olungaphazamisiyo kunye nokucubungula isignali okuphambili, kuzenza zibe lukhetho olukhethwayo kwiinkqubo zanamhlanje zoshishino. Ngokubonelela ngedatha yokuhamba okuthembekileyo ngexesha langempela, ezi zixhobo zinegalelo ekuphuculeni ukusebenza kakuhle, ukunciphisa iindleko zokugcinwa, kunye nokhuseleko oluphuculweyo kwiinkqubo zokuthutha udaka.
Ixesha leposi: Jan-16-2026