Ama-flowmeter kagesizisetshenziswa kabanzi ezinqubweni zezimboni ukuze kulinganiswe ukugeleza okunembile. Kodwa-ke, kunezimo eziningana lapho ukusetshenziswa kwazo kungase kungafaneleki.
1. Amanzi Angahambisi Umoya
Ama-flowmeter kagesizisebenza ngokusekelwe emthethweni kaFaraday wokungeniswa kwe-electromagnetic. Zidinga ukuthi uketshezi olulinganiswayo luhambisane nogesi. Lapho uketshezi oluhambisanayo lugeleza ensimini yamagnetic, i-voltage ifakwa kububanzi bepayipi lokugeleza, okulingana nejubane lokugeleza koketshezi. Kuketshezi olungenawo amandla okuhambisa ugesi njengeningi lama-hydrocarbon (isb., uphethiloli, udizili), amanzi ahlanzekile asesimweni esingenawo amandla okuhambisa ugesi, kanye nezinyibilikisi eziningi eziphilayo, i-voltage ebangelwayo iphansi kakhulu noma ayikho. Ezimweni ezinjalo, i-flowmeter ye-electromagnetic ayikwazi ukukala ngokunembile izinga lokugeleza njengoba ingenayo i-conductive medium edingekayo yokukhiqiza i-voltage ebangelwayo elinganiswayo.
2. Uketshezi olunokuqukethwe okuqinile okuphezulu noma izinhlayiya ezirhabaxa
Uketshezi oluqukethe ukugcwala okuphezulu kwezinhlayiya eziqinile noma izinto ezihuquzelayo lungabangela izinkinga ezinkulu kuma-flowmeter kagesi. Ulwelwesi lwangaphakathi lweshubhu lokugeleza ku-flowmeter kagesi lubalulekile ekusebenzeni kahle kwemitha. Izinhlayiya ezihuquzelayo kuketshezi zingaguguleka kancane kancane ulwelwesi ngokuhamba kwesikhathi. Njengoba ulwelwesi luwohloka, lungathinta ukunemba kokulinganiswa kwamandla kagesi okubangelwa. Ngaphezu kwalokho, izinhlayiya eziqinile zingase zibangele ukuvinjelwa kuma-electrode e-flowmeter. Lawa ma-electrode abalulekile ekutholeni amandla kagesi abangelwayo. Ukuvinjwa kungaphazamisa ukuxhumana kukagesi phakathi kolwelwesi nama-electrode, okuholela ekufundweni kokugeleza okungalungile noma okungaguquki. Isibonelo, emapayipini e-slurry okumbiwa lapho i-slurry iqukethe inani elikhulu lamaminerali ahuquzelayo, i-flowmeter kagesi ingase ingabi yisinqumo esihle kakhulu njengoba isikhathi sayo sokuphila kanye nokunemba kokulinganisa kungaba sengozini enkulu.
3. Izimo Zokugeleza Okuphansi
Ama-flowmeter kagesibanejubane elithile eliphansi lokugeleza ngaphansi kwalokho ukusebenza kwabo kuyehla khona. Ngamazinga okugeleza aphansi kakhulu, i-voltage ebangelwa uketshezi olugeleza incane kakhulu. Le voltage encane ingathinteka kalula ngumsindo kagesi kanye neminye imithombo yokuphazamiseka. Isilinganiso somsindo wesignali kuya ku-siba sibi, okwenza kube nzima ngemitha ukuhlukanisa ngokunembile i-voltage ebangelwayo ehlobene nokugeleza nomsindo wangemuva. Ngenxa yalokho, ukunemba kokulinganisa kwe-flowmeter ye-electromagnetic ezimweni zokugeleza okuphansi kuvame ukuba kubi, futhi kungase kungakwazi ukunikeza idatha yesilinganiso sokugeleza ethembekile. Lokhu kubaluleke kakhulu ezisetshenzisweni lapho izinga lokugeleza lihluka kakhulu futhi lingase lehle liye emananini aphansi kakhulu isikhathi eside, njengakwezinye izinqubo zamakhemikhali ezincane noma ezinhlelweni zokuphakelwa kwamanzi ngezikhathi zesidingo esiphansi.
4. Izindawo Ezinokushisa Okuphezulu Nezingcindezi Eziphezulu (Ngaphezu Kwemikhawulo Elinganiselwe)
I-flowmeter ngayinye ye-electromagneticiklanyelwe ukusebenza ngaphakathi kwezinga lokushisa elithile kanye nezinga lokucindezela. Uma izinga lokushisa noma umfutho woketshezi udlula le mikhawulo elinganisiwe, kungabangela izinkinga. Izinga lokushisa eliphezulu lingathinta izakhiwo zomzimba nezikagesi zezinto ezisetshenziswa ku-flowmeter, njengezinto zokuvala ulwelwesi kanye nokufakwa kokushisa kwama-electrode. Ulwelwesi lunganda, lunciphe, noma luwohloke emazingeni okushisa aphezulu, okungaholela ekuvuza noma ekushintsheni kwejiyometri ye-flow tube, ngaleyo ndlela kuthonye ukunemba kokulinganisa. Ngokufanayo, ukucindezela okuphezulu kungabeka ukucindezeleka okukhulu ku-flow tube kanye nezingxenye zayo. Uma ukucindezela kuphakeme kakhulu, kungabangela ukuthi i-flow tube iguquguquke noma iqhekeke, okwenza i-flowmeter ingasebenzi. Ezisetshenzisweni ezibandakanya uketshezi olushisayo kakhulu, njengakwezinye izitofu zezimboni ezishisa kakhulu, noma emapayipini acindezela kakhulu embonini kawoyela negesi lapho ukucindezela kungafinyelela amazinga aphezulu kakhulu, i-flowmeter kagesi ingase ingafaneleki ngaphandle kokuthi yenzelwe ngqo izimo ezinjalo ezimbi kakhulu.
Ekuphetheni, ngenkathiama-flowmeter kagesiNjengoba inikeza izinzuzo eziningi ekulinganisweni kokugeleza, kubalulekile ukucabangela ngokucophelela uhlobo loketshezi, izimo zokusebenza, kanye nezici zokugeleza ukuze kunqunywe ukuthi kuyisinqumo esifanele yini. Ezimweni ezichazwe ngenhla, ubuchwepheshe obuhlukile bokulinganisa ukugeleza bungase bufaneleke kakhulu ukuqinisekisa ukunqunywa kwesilinganiso sokugeleza okunembile nokuthembekile.
Isikhathi sokuthunyelwe: Mashi-10-2025