Embusweni weukulinganisa uketshezi, ama-flowmeter kagesi kanye nama-flowmeter e-ultrasonic avelele njengamadivayisi amabili asetshenziswa kabanzi. Ngayinye inezici ezihlukile, futhi ukuqonda umehluko wayo kubalulekile ekwenzeni ukukhetha okufanele ezinhlotsheni ezahlukene zezimboni.
1. Izimiso Zokusebenza
Ama-flowmeter e-Electromagnetic
Ama-flowmeter e-electromagnetic asebenza ngokusekelwe emthethweni kaFaraday wokungeniswa kwe-electromagnetic. Lapho uketshezi oluqhubayo lugeleza ensimini yamagnetic ekhiqizwa yimitha, i-voltage ifakwa kulo lonke uketshezi. Le voltage ebangelwayo ilingana nejubane loketshezi. Ngokwezibalo, i-voltage ebangelwayo u-E inikezwa yi-E=BDV, lapho u-B kungamandla ensimu yamagnetic, u-D ububanzi bepayipi lokulinganisa, kanti u-V uyijubane elimaphakathi loketshezi. Lesi simiso senza kube lula ukulinganisa uketshezi oluqhubayo olunembile kakhulu.
Ama-Ultrasonic Flowmeters
Ama-flowmeter e-Ultrasonic asebenzisa amaza omsindo ukukala ijubane loketshezi. Kunezinhlobo ezimbili eziyinhloko: ukuhamba - isikhathi kanye ne-Doppler. Ukuhamba - isikhathi ama-flowmeter e-ultrasonic alinganisa umehluko ngesikhathi esithathwayo ukuze amasignali e-ultrasonic ahambe phezulu naphansi koketshezi. Ijubane lokugeleza libalwa kusukela kulo mehluko wesikhathi. Ama-flowmeter e-ultrasonic e-Doppler, ngakolunye uhlangothi, athembele kumphumela we-Doppler. Lapho amaza e-ultrasonic ebonakala ezinhlayiyeni noma emaqabungeni oketshezi, imvamisa yamaza abonakalayo iyashintsha. Ijubane lokugeleza linqunywa kusukela kulokhu kushintsha kwemvamisa.
2. Ukunemba Kokulinganisa
Ama-flowmeter e-Electromagnetic
Ama-flowmeter e-electromagnetic anikeza ukunemba okuphezulu, ngokuvamile angaphakathi kuka-±0.2% kuya ku-±1% wenani elilinganisiwe. Anikeza ukusebenza okulinganayo phakathi kwezilinganiso eziningi zokugeleza, okwenza afaneleke ukusetshenziswa lapho ukulinganisa okunembile kubalulekile khona, njengasezimbonini zemithi namakhemikhali.
Ama-Ultrasonic Flowmeters
Ukunemba kwama-flowmeter e-ultrasonic kuyahlukahluka kuye ngohlobo. Ama-flowmeter e-ultrasonic e-transit-time angafinyelela ukunemba okungu-±0.5% kuya ku-±2%, kuyilapho ama-flowmeter e-ultrasonic e-Doppler evame ukuba nokunemba okuphansi, cishe okungu-±2% kuya ku-±5%. Izici ezifana nokusatshalaliswa kwezinhlayiya noma amabhamuza oketshezini zingathinta kakhulu ukunemba kwama-flowmeter e-Doppler.
3. Amanzi Asebenzayo
Ama-flowmeter e-Electromagnetic
Lawa ma-flowmeter afanelekela uketshezi oluqhuba ugesi kuphela. Uketshezi kumele lube nomthamo kagesi omncane, ngokuvamile ongaphezu kuka-5 μS/cm. Avame ukusetshenziswa ukukala ukugeleza kwamanzi, amanzi angcolile, kanye nezixazululo zamakhemikhali ezahlukahlukene.
Ama-Ultrasonic Flowmeters
Ama-flowmeter e-Ultrasonic angasetshenziswa kokubili uketshezi oluhlanzekile nolungcolile. Ama-flowmeter e-transit-time asebenza kahle ngoketshezi oluhlanzekile noma olungcolile kancane, kuyilapho ama-flowmeter e-Doppler efaneleka kakhulu uketshezi olunenani elikhulu lezinhlayiya ezilengayo noma amabhamuza, njenge-slurries kanye nendle.
4. Izidingo Zokufaka
Ama-flowmeter e-Electromagnetic
Ama-flowmeter e-electromagnetic adinga ingxenye yepayipi eqondile phezulu nangezansi ukuqinisekisa ukugeleza okufanayo. Ngokuvamile, kunconywa ubude bepayipi eliqondile elingaphezulu elinobubanzi bepayipi obungu-5 kuya ku-10 kanye nobude bepayipi elingezansi obungububanzi bepayipi obungu-2 kuya ku-5. Adinga futhi ukufakwa endaweni lapho uketshezi lugcwele khona epayipini.
Ama-Ultrasonic Flowmeters
Ukufakwa kwama-flowmeter e-ultrasonic kuyaguquguquka kakhudlwana. Ama-flowmeter e-ultrasonic angafakwa ngaphandle ngaphandle kokusika ipayipi, okunciphisa isikhathi sokufaka kanye nezindleko. Kodwa-ke, ukufakwa okunembile kusadinga ukulungelelaniswa okufanele kanye nokucatshangelwa kwezici ezifana nobukhulu bodonga lwepayipi kanye nezinto zokwakha.
5. Izindleko
Ama-flowmeter e-Electromagnetic
Ama-flowmeter e-electromagnetic avame ukubiza kakhulu kusengaphambili ngenxa yomklamo wawo oyinkimbinkimbi kanye nokwakhiwa kwawo. Kodwa-ke, ukuthembeka kwawo kwesikhathi eside kanye nokunemba kungabangela izindleko eziphansi kuzo zonke izinhlelo zokusebenza lapho ukulinganisa okunembile kubalulekile khona.
Ama-Ultrasonic Flowmeters
Ama-flowmeter e-Ultrasonic, ikakhulukazi amamodeli e-clamp, avame ukusebenza kahle kakhulu uma kutshalwa imali kokuqala. Ayindlela enhle yokukhetha izinhlelo zokusebenza lapho izidingo zokunemba zingekho phezulu kakhulu noma lapho ukulula kokufaka kuyinto eza kuqala.
Ekuphetheni, ama-flowmeter kagesi kanyeama-flowmeter e-ultrasonicngayinye inezinzuzo zayo kanye nemikhawulo yayo. Ngokucabangela ngokucophelela izici ezifana nezimiso zokusebenza, ukunemba kokulinganisa, uketshezi olufanele, izidingo zokufaka, kanye nezindleko, onjiniyela kanye nabaqhubi bangakhetha ofanele kakhulu.i-flowmeterngezicelo zabo ezithile.
Isikhathi sokuthunyelwe: Ephreli-08-2025