I-electromagnetic flowmeter (EMF), eyaziwa nangokuthi i-magmeter/mag flowmeter, iyithuluzi elisetshenziswa kabanzi ekulinganiseni izinga lokugeleza koketshezi oluqhuba ugesi ezisetshenziswayo zezimboni kanye nezomasipala. Leli thuluzi linganikeza isisombululo sokulinganisa ukugeleza kwevolumu esithembekile nesingenakuphazamisa sisebenzisa umthetho kaFaraday, esifanele indawo yoketshezi enokuqhuba okufanele.
Amandla ayo e-electromotive abangelwa yi-E angabonakaliswa ngale ndlela elandelayo:
E=KBVD
Kuphi
K = Isilinganiso se-Flowmeter
B = Ukuqina kokungeniswa kwamagnetic
V= ijubane eliphakathi lokugeleza engxenyeni ephambene yepayipi lokulinganisa
D= Ububanzi bangaphakathi bepayipi lokulinganisa
Isimiso Sokusebenza
Isimiso esiyisisekelo sokusebenza kwe-mag flowmeter umthetho kaFaraday wokungeniswa kwe-electromagnetic. Uthi lapho umqhubi ehamba ensimini yamagnetic, amandla e-electromotive angabangelwa.
Ikakhulukazi uma kusetshenziswa i-electromagnetic flowmeter, uketshezi oluhambisa umoya olugeleza ngepayipi lethuluzi lusebenza njengomqhubi. I-coils ezimbili zikhiqiza insimu yamagnetic efanayo eqonde ngqo ohlangothini lokugeleza. Imigqa yamagnetic field izonqunywa ngokugeleza. Ngakho-ke amandla e-electromotive abangelwayo akhiqizwa futhi kamuva azwakale ngama-electrode ensimbi amabili bese ecutshungulwa abe umphumela wesignali kagesi ojwayelekile.
Izinzuzo Zokulinganisa Ukugeleza Kwamagnetic
Ubulula besakhiwo:Ukwakhiwa kwe-EMF akunazo izingxenye ezinyakazayo, okungabikho kwayo kunciphisa ukuguguleka kwemishini nesidingo sokulungisa. Akukho futhi ukuphazamiseka ngaphakathi kwepayipi layo lokulinganisa okungaholela ekuncipheni kwekhanda lokucindezela kanye nokuvaleka kwe-viscous medium.
Izidingo zokufaka ezimbalwa:Ukufakwa kwe-EMF kudinga ubude obufushane bezingxenye zamapayipi aqondile aphezulu naphansi. Njengoba isebenza ngokuzimela, i-mag flowmeter ayidingi i-differential pressure transmitter ukusiza ekulinganisweni kwayo. Ukugeleza kungalinganiswa kuzo zombili izinhlangothi, kuncishiswe ukuvinjelwa kokuqondiswa kwemitha futhi kufanelekela ukusetshenziswa kokuqapha ukugeleza okuphambene.
Ukuhambisana:Ukulinganiswa kokugeleza kwe-Mag kungabonisa ukusebenza okuzinzile nokuthembekile okungathinteki kakhulu yimingcele ephakathi nendawo yokucindezela, izinga lokushisa, ubuningi kanye ne-viscosity. Izinto zokubopha ezingenziwa ngezifiso kanye ne-electrode metals cab ezivimbela ukugqwala kanye nezidingo ezingagugi, ezisebenza ezinhlotsheni eziningi zamakhemikhali anolaka, i-slurry e-abrasive, kanye ne-media edinga uketshezi ehlanzekile.
Ukunemba:Indlela ye-electromagnetic ifaka ukulinganisa okunembe kakhulu phakathi kwezindlela ezahlukene zokulinganisa ukugeleza kwevolumu. Ukunemba kwe-EMF ngokuvamile kuphakathi kuka-±0.5% kuya ku-±0.2% wokufunda.
Ukulinganiselwa
Ukuqhuba okudingekayo:Uketshezi lokulinganisa lwe-EMF luyadingeka ukuze lube nokuqhuba okwanele (≥5μS/cm). Ngakho-ke igesi kanye noketshezi olungahambisi ugesi kungaphezu kokulinganiswa kokugeleza kwe-electromagnetic. Imithombo evamile yezimboni engahambisi ugesi njengamanzi ahlanziwe ngomusi, izinyibilikisi eziphilayo kanye nemikhiqizo kawoyela ayikwazi ukusebenzisa le ndlela yokuqapha ukugeleza.
Ipayipi eligcwele ngokuphelele:Ukusebenza kwe-EMF kudinga ukucwiliswa okuphelele kanye nokuxhumana okuqhubekayo kwama-electrode noketshezi oluqhubayo. Ngakho-ke ngesikhathi sokulinganisa inqubo kumele iqinisekise ukuthi ingxenye yamapayipi e-EMF igcwele ngokuphelele nge-medium ukuze kufezwe ukusebenza okuhle kakhulu.
Isicelo
Ngokusekelwe kumgomo wayo wokulinganisa oyingqayizivele, i-flowmeter kagesi ifaneleka kakhulu ekulinganisweni koketshezi oluqhubayo ezimweni ezifana nalezi:
Ukuhlinzekwa Kwamanzi:Ukulinganisa ukugeleza kwamanzi angavuthiwe okungena kanye nokugeleza kwamanzi ahlanziwe ukuze kulawulwe imithombo yamanzi.
Ukwelashwa Kwendle: Ukulinganisa indle kamasipala, ukungcola kwezimboni, kanye nodaka ngokuhambisa okwanele.
Amakhemikhali:Ukulinganisa ama-asidi ahlukahlukene, izixazululo ze-alkali, usawoti, kanye nezinye izinto ezingcolisa kakhulu kusetshenziswa ama-lining amelana nokugqwala kanye nezinto ze-electrode.
Isiphuzo:Ukulinganisa izinto zokusetshenziswa, izinto eziphakathi kanye nemikhiqizo eqediwe ngesikhathi sokukhiqizwa kobisi, ujusi, isiphuzo esidakayo kanye nezinye iziphuzo.
Ubuchwepheshe bezinsimbi:Ukulinganisa udaka lwamaminerali, udaka oluvela emisileni, amanzi odaka lwamalahle ekucutshungulweni kwe-ore ngezinto ezingagugi.
Amandla:Ukulinganisa amanzi apholile ajikelezayo, i-condensate, uketshezi lokwelapha ngamakhemikhali ezinqubweni zesitshalo samandla, njll.
Shanghai Wangyuanuneminyaka engaphezu kwengu-20 yesipiliyoni ekukhiqizeni nasekulungiseni amathuluzi okulinganisa. Ulwazi lwethu oluningi lobuchwepheshe kanye nezifundo zamacala kuzo zonke izinhlobo zamamitha okugeleza kusenza sikwazi ukuhlinzeka ngezixazululo zokuqapha ukugeleza ezihlangabezana nezidingo zakho ngqo. Uma unemibuzo nezidingo mayelana namamitha okugeleza kagesi, sicela ungangabazi ukuxhumana nathi.
Isikhathi sokuthunyelwe: Juni-03-2025