Emikhakheni yezimboni efana namakhemikhali, i-metallurgy, ukwelashwa kwamanzi amdaka, iphepha kanye nezimayini, izinto zokulinganisa ukugeleza zivame ukuveza izici eziyinkimbinkimbi kufaka phakathi ukugqwala okuqinile noma okuqinile. Amathuluzi okulinganisa ukugeleza avamile njengepuleti le-orifice noma ama-vortex flowmeter ngokuvamile abhekana nezinkinga ezifana nokuvaleka, ukuguguleka, ukwehluleka kokugqwala noma ukulahlekelwa ukunemba lapho kubhekene naleyo ndlela. Isebenzisa isimiso sayo sokulinganisa esiyingqayizivele kanye nezici zesakhiwo,i-flowmeter kagesikubhekwa njengethuluzi elikhethwayo lokulinganisa ukugeleza kwemidiya engcolile negqwalisayo emkhakheni wokulawula inqubo yezimboni.
I-flowmeter ye-electromagnetic isebenza ngokusekelwe emthethweni kaFaraday wokungeniswa kwe-electromagnetic. Lo mgomo ubeka ukuthi ama-flowmeter e-electromagnetic athembele kuphela ekuqhutshweni kukagesi koketshezi futhi azimele ezintweni ezifana nobuningi boketshezi, i-viscosity, izinga lokushisa kanye nengcindezi. Ngokwesakhiwo, ithubhu lokulinganisa le-flowmeter ye-electromagnetic liqukethe i-house, i-liner kanye nama-electrode. I-liner ixhumana ngqo ne-process medium, inikeza ukuvikelwa kokushisa kanye nokugqwala; ama-electrode afakwe ku-liner futhi axhumana noketshezi ukuze athole amandla e-electromotive abangelwayo; i-home inikeza amandla omshini futhi isekela isekethe yamagnetic. Lokhu kulungiselelwa kwesakhiwo kubeka isisekelo sokuzivumelanisa nezimo zokusebenza ezidingayo.
Imidiya engcolile ivame ukuqukethe izinto eziqinile ezilengayo, imicu noma izingxenye eziqinile. Izinto ezigoqayo, izingxenye ezijikelezayo, noma izindlela ezincane zokugeleza ezivame ukutholakala kuma-flowmeter endabuko zisengozini enkulu yokuvaleka noma ukuguguleka. Izinzuzo ze-flowmeter kagesi ngaphansi kwezimo ezinjalo zokusebenza zibonakala kakhulu ezicini ezimbili:
Isakhiwo Esingenazithiyo:Isiteshi sokulinganisa se-electromagnetic flowmeter siyipayipi eliqondile elingenazo izingxenye eziphumayo noma ezihambayo ngaphakathi. Njengoba uketshezi lugeleza ethuluzini, akukho shintsho olusheshayo engxenyeni enqamulayo, okuvimbela izinhlayiya eziqinile noma imicu ukuthi ingaqongelelani ngaphakathi kwethuluzi. Uma kuqhathaniswa nezinhlobo ezahlukene zama-differential pressure flowmeter, i-electromagnetic flowmeter isusa ingozi yama-pressure tapping ports avaliwe; ngama-turbine nama-flowmeters amahle okuhamba, igwema ukwehluleka okubangelwa ukubanjwa noma ukuguguleka kwe-rotor.
Ukuzivumelanisa Nokugeleza Okuqinile Koketshezi Okunezigaba Ezimbili:Isignali ye-electromagnetic flowmeter ingahlala izinzile lapho i-medium iqukethe izinhlayiya eziqinile ngoba amandla e-electromotive abangelwa ngokuyinhloko anqunywa yijubane lokugeleza kwesigaba esiqhubekayo soketshezi. Ngaphezu kwalokho, i-electromagnetic flowmeter isebenzisa ubuchwepheshe bokuvuselela imvamisa ephezulu kanye nobuchwepheshe bokucubungula isignali yedijithali obucindezela ngempumelelo umsindo we-spike okhiqizwa yizinhlayiya ezithinta ama-electrode, zigcina ukunemba okuphezulu ekulinganisweni kokugeleza koketshezi oluqinile njenge-pulp, i-slurry kanye nodaka.
Ama-asidi ahlukahlukene abhubhisayo, ama-alkali, izixazululo zikasawoti, kanye nezinyibilikisi eziphilayo zibeka izidingo eziqinile ekumelaneni nokugqwala kwezinto ezimanziswe yi-flowmeter. I-flowmeter kagesi ifinyelela ukuhlukaniswa okusebenzayo kanye nokulinganisa okuthembekile kwemidiya ebhubhisayo ngokusebenzisana phakathi kwe-lining kanye nezinto ze-electrode.
Izinto zokufaka ulwelwesiisebenza umsebenzi wokuxhumana ngqo nendawo engaphakathi nokuyihlukanisa nendawo engaphakathi kwensimbi. Kuye ngezici zokugqwala kwendawo engaphakathi, izinto ezifana ne-PTFE, i-polyurethane, noma irabha ye-chloroprene zingakhethwa. I-PTFE ibonisa ukungangeni kahle kwamakhemikhali, ekwazi ukumelana nokuguguleka okuvela ezintweni eziningi ezigqwalayo ngaphandle kwezinsimbi ze-alkali ezincibilikisiwe kanye nama-fluoride athile, kuyilapho futhi inezakhiwo ezinhle zokulwa nokunamathela.
Izinto ze-electrodeikhethwa ngokusekelwe ezicini zokugqwala kwe-electrochemical ephakathi nendawo. Izinto ezisetshenziswa kakhulu zifaka phakathi i-SS316L, i-Hastelloy B/C, i-titanium, i-tantalum kanye ne-platinum alloys. Ukuze uthole i-asidi egqwala kakhulu noma izixazululo eziqukethe ama-ion e-chloride, ama-electrode e-tantalum noma e-platinum anganikeza isivikelo esithembekile. Ngokukhetha okuhlelekile kwezinto zokwelulela kanye ne-electrode, i-flowmeter ye-electromagnetic ingazivumelanisa nezimo eziningi zokusebenza kusukela kokuncane kuya kokugqwala kakhulu.
I-flowmeter ye-electromagnetic inezici ezithile eziphelele ezenza kube lula ukulinganisa imidiya engcolile negqwalayo:
Ukulahlekelwa Okuphansi Kokucindezela:Ngenxa yokungabikho kwe-throttling element, cishe akukho ukulahleka okwengeziwe kwengcindezi ngesikhathi sokulinganisa nge-electromagnetic flowmeter okungaba nokubaluleka okukhulu ku-high-viscosity medium noma uhlelo lwenqubo olunamandla okudlulisa alinganiselwe.
Ukuqina Okuphezulu Kwesikhathi Eside:I-flowmeter ye-electromagnetic ayinazo izingxenye ezihambayo, igwema izinkinga ezifana nokukhathala komshini, ukuguguleka noma ukuxhuzula. Uma nje izinto zokwakheka kwendwangu kanye ne-electrode zikhethwe kahle, ukuzinza kwayo kokusebenza kwesikhathi eside kungaba ngcono kakhulu kune-flowmeter yemishini noma yokugoqa, ngezidingo zokulungisa ezincishisiwe kakhulu.
Ei-electromagnetic flowmeterkukhombisa izinzuzo eziyingqayizivele ekulinganiseni imidiya engcolile/egqwalisayo. Kodwa-ke, ukusebenza kahle kwanoma yisiphi isixazululo sobuchwepheshe kwakhelwe phezu kwesisekelo sezimo ezifanele. Kubaluleke kakhulu ukuqaphela ukuthi imfuneko yokulinganisa i-flowmeter kagesi ukuthi i-medium elinganisiwe kumele ibe nezinga elithile lokuqhuba ugesi (ngokuvamile kungabi ngaphansi kuka-5~15).μS/cm). Kuketshezi olungenawo ugesi noma olungenawo ugesi oluphansi njengamanzi angenawo ugesi, izinyibilikisi ze-hydrocarbon, namafutha, lesi simiso asikwazi ukukhiqiza amandla e-electromotive asebenzayo futhi simise ukulinganisa okungenzeka.Shanghai Wangyuanungumenzi wezinsimbi ochwepheshe onolwazi olungaphezu kweminyaka engamashumi amabili embonini. Uma unezidingo noma imibuzo mayelanai-flowmeterukukhetha, sicela ukhululeke ukuxhumana nathi ukuze uthole ukwesekwa kobuchwepheshe kanye nezixazululo.
Isikhathi sokuthunyelwe: Mashi-26-2026