Electromagnetic flowmeter (EMF), yomwe imadziwikanso kuti magmeter/mag flowmeter, ndi chida chomwe chimagwiritsidwa ntchito kwambiri poyezera kuchuluka kwa madzi opangira magetsi pamafakitale ndi ma municipalities. Chidacho chingapereke njira yodalirika komanso yosasokoneza volumetric flow measurement solution motsatira malamulo a Faraday, oyenera pamadzi amadzimadzi omwe ali ndi conductivity yoyenera.
Mphamvu yake ya electromotive E imatha kuwonetsedwa ndi njira iyi:
E=KBVD
Kuti
K = Flowmeter nthawi zonse
B = Kuchuluka kwa maginito
V= kutanthawuza kuthamanga kwa liwiro mu gawo lapakati la chitoliro choyezera
D= M'mimba mwake wa chitoliro choyezera
Mfundo Yogwirira Ntchito
Mfundo yofunika kwambiri yogwiritsira ntchito mag flowmeter ndi lamulo la Faraday la electromagnetic induction. Limanena kuti kondakitala akamadutsa m’gawo la maginito, mphamvu ya electromotive imasonkhezeredwa.
Makamaka pakugwira ntchito kwa electromagnetic flowmeter, madzimadzi othamanga omwe amadutsa mutoliro wa chipangizocho amakhala ngati kondakitala. Ma coils awiri amapanga gawo lofananira la maginito perpendicular komwe kumapita. Mizere ya maginito imatha kudulidwa ndikuyenda. Chifukwa chake mphamvu ya electromotive imapangidwa ndikuzindikiridwa ndi maelekitirodi achitsulo ndikusinthidwa kukhala chizindikiro chamagetsi.
Ubwino wa Magnetic Flow Measurement
Kuphweka:Zomangamanga za EMF zilibe magawo osuntha, omwe kusowa kwawo kumachepetsa kuvala kwamakina ndi kufunikira kokonza. Palibenso chopinga chilichonse mkati mwa chitoliro chake choyezera chomwe chingayambitse kutsika kwamutu ndikutsekeka kwa viscous medium.
Zofunikira zocheperako:Kuyika kwa EMF kumafuna utali wofupikitsa wa zigawo zowongoka za mmwamba & pansi pamtsinje. Imagwira ntchito palokha, mag flowmeter safuna ma transmitter osiyanasiyana kuti athandizire muyeso wake. Mayendedwe amatha kuyezedwa mbali zonse ziwiri, kuchepetsa kuletsa kwa mita ndipo ndi koyenera kugwiritsa ntchito kuyang'anira mobwerera m'mbuyo.
Kugwirizana:Kuyeza kwa Mag flow kungawonetse magwiridwe antchito okhazikika komanso odalirika omwe sakhudzidwa ndi magawo apakati apakati, kutentha, kachulukidwe ndi mamasukidwe akayendedwe. Zida zomangira makonda ndi ma electrode metal cab anti-corrosion ndi zofunikira zosamva, zogwiritsidwa ntchito pamitundu yambiri yaukali, slurry ya abrasive, ndi ukhondo womwe umafunikira media zamadzimadzi.
Kulondola:Njira yamagetsi yamagetsi imakhala ndi kuyeza kolondola kwambiri pakati pa njira zosiyanasiyana zoyezera ma volumetric. Kulondola kwa EMF nthawi zambiri kumakhala ± 0.5% mpaka ± 0.2% powerenga.
Zolepheretsa
Conductivity ikufunika:Madzi oyezera a EMF amafunika kuti akhale ndi mphamvu zokwanira (≥5μS/cm). Chifukwa chake gasi ndi madzi osagwiritsa ntchito magetsi samatha kufikira muyeso wamagetsi amagetsi. Makanema wamba osagwiritsa ntchito mafakitale monga madzi oyeretsedwa ndi nthunzi, zosungunulira organic ndi zinthu zamafuta sangathe kugwiritsa ntchito njira yowunikirayi.
Chitoliro chodzaza kwathunthu:Kugwira ntchito kwa EMF kumafuna kumizidwa kwathunthu ndi kukhudzana kosalekeza kwa maelekitirodi ndi madzimadzi oyendetsa. Chifukwa chake pakuyezera njirayo iyenera kuwonetsetsa kuti gawo la chitoliro la EMF ladzazidwa ndi sing'anga kuti likwaniritse ntchito yabwino.
Kugwiritsa ntchito
Kutengera muyeso wake wapadera, electromagnetic flowmeter ndiyoyenera kuyeza zakumwa zamadzimadzi muzochitika monga:
Madzi:Kuyeza madzi aiwisi olowera m'malo olowera komanso kutuluka kwamadzi oyeretsedwa potengera kasamalidwe ka madzi.
Kuyeretsa kwa Sewage: Kuyeza zimbudzi zamatauni, utsi wa m'mafakitale, ndi matope okhala ndi ma conductivity okwanira.
Chemical:Kuyeza ma asidi osiyanasiyana, alkali, mchere wothira mchere, ndi zinthu zina zowononga kwambiri pogwiritsa ntchito zingwe zosagwirizana ndi dzimbiri ndi zida za electrode.
Chakumwa:Kuyeza zopangira, zapakati komanso zomalizidwa panthawi yopanga mkaka, madzi, zakumwa zoledzeretsa ndi zakumwa zina.
Metallurgy:Kuyeza mchere slurry, tailing slurry, malasha slurry madzi mu ore processing ndi zinthu zosavala.
Mphamvu:Kuyeza madzi ozizira ozungulira, condensate, madzi opangira mankhwala munjira zamagetsi zamagetsi, etc.
Shanghai Wangyuanali ndi zaka zopitilira 20 akupanga ndi kuyesa zida zoyezera. Kudziwa kwathu kwaukadaulo komanso maphunziro amilandu m'magawo onse okhala ndi mitundu yonse ya ma flow metre kumatithandiza kukupatsirani mayankho owunikira omwe amakwaniritsa zomwe mukufuna ndendende. Ngati pali mafunso ndi zosowa zokhudzana ndi ma electromagnetic flow metre, chonde musazengereze kutifikira.
Nthawi yotumiza: Jun-03-2025