M'magawo a mafakitale monga mankhwala, zitsulo, kukonza madzi otayira, mapepala ndi migodi, zinthu zomwe zimagwiritsidwa ntchito poyezera kayendedwe ka madzi nthawi zambiri zimakhala ndi mawonekedwe ovuta kuphatikiza zowononga kapena zokhuthala. Zipangizo zoyezera kayendedwe ka madzi monga mbale ya orifice kapena vortex flowmeters nthawi zambiri zimakumana ndi mavuto monga kutsekeka, kuwonongeka, kulephera kwa dzimbiri kapena kutayika kolondola pochita ndi zinthu zotere. Pogwiritsa ntchito mfundo zake zapadera zoyezera ndi mawonekedwe ake,choyezera kuyenda kwa magetsiimaonedwa ngati chida chomwe chimagwiritsidwa ntchito poyesa kayendedwe ka zinthu zodetsedwa komanso zowononga m'munda wowongolera njira zamafakitale.
Chida choyezera magetsi chimagwira ntchito motsatira lamulo la Faraday la kulowetsa magetsi m'magetsi. Mfundo yake ndi yakuti ma electromagnetic flowmeters amadalira kokha mphamvu yamagetsi ya madzi ndipo sadalira zinthu monga kuchuluka kwa madzi, kukhuthala, kutentha ndi kupanikizika. Mwa kapangidwe kake, chubu choyezera cha electromagnetic flowmeter chimakhala ndi nyumba, liner ndi ma electrodes. Liner imakhudzana mwachindunji ndi njira yopangira zinthu, zomwe zimapereka chitetezo cha kutentha ndi dzimbiri; ma electrodes amaikidwa mu liner ndipo amalumikizana ndi madzi kuti azindikire mphamvu yamagetsi yomwe imayambitsa; nyumbayo imapereka mphamvu yamakina ndipo imathandizira dera la maginito. Kapangidwe kameneka kamayala maziko osinthira ku mikhalidwe yovuta yogwirira ntchito.
Malo odetsedwa nthawi zambiri amakhala ndi zinthu zolimba zopachikidwa, ulusi kapena zinthu zokhuthala. Zinthu zozungulira, zinthu zozungulira, kapena njira zazing'ono zoyendera zomwe zimapezeka m'ma flowmeter achikhalidwe zimakhala zosavuta kutsekeka kapena kuwonongeka. Ubwino wa electromagnetic flowmeter pansi pa mikhalidwe yotereyi imawonekera makamaka m'mbali ziwiri:
Kapangidwe kopanda zopinga:Njira yoyezera ya electromagnetic flowmeter ndi chitoliro cholunjika chomwe chilibe ziwalo zotuluka kapena zosuntha mkati. Pamene madzi akuyenda kudzera mu chipangizocho, palibe kusintha kwadzidzidzi kwa gawo lopingasa, zomwe zimaletsa tinthu tolimba kapena ulusi kuti tisamamatire mkati mwa chipangizocho. Poyerekeza ndi mitundu yosiyanasiyana ya pressure flowmeters, electromagnetic flowmeter imachotsa chiopsezo cha pressure tapping ports zotsekedwa; ndi turbine ndi positive displacement flowmeters, imapewa kulephera komwe kumachitika chifukwa cha rotor kugwidwa kapena kuwonongeka.
Kusinthasintha kwa Kuyenda kwa Madzi Olimba ndi Magawo Awiri:Chizindikiro cha electromagnetic flowmeter chikhoza kukhala chokhazikika pamene cholumikiziracho chili ndi tinthu tolimba chifukwa mphamvu ya electromotive yomwe imayambitsa imatsimikiziridwa makamaka ndi liwiro la kuyenda kwa gawo lopitilira lamadzi. Kuphatikiza apo, electromagnetic flowmeter imagwiritsa ntchito ukadaulo wodabwitsa wa ma frequency ambiri komanso ukadaulo wokonza ma signal a digito womwe umaletsa bwino phokoso lopangidwa ndi tinthu tomwe timakhudza ma electrodes, ndikusunga kulondola kwakukulu pakuyeza kuyenda kwa madzi olimba monga zamkati, matope ndi matope.
Ma asidi osiyanasiyana owononga, ma alkali, mayankho a mchere, ndi zosungunulira zachilengedwe zimafuna kulimba kwa kukana kwa dzimbiri kwa zinthu zonyowa ndi flowmeter. Electromagnetic flowmeter imapeza njira yodzipatula komanso yodalirika yoyezera zinthu zowononga kudzera mu mgwirizano pakati pa lining ndi electrode.
Zipangizo zomangiraImathandiza kugwira mwachindunji cholumikiziracho ndikuchilekanitsa ndi nyumba yachitsulo. Kutengera ndi mawonekedwe owononga a cholumikiziracho, zinthu monga PTFE, polyurethane, kapena rabara ya chloroprene zitha kusankhidwa. PTFE ili ndi kusakhala bwino kwa mankhwala, yomwe imatha kupirira kukokoloka kuchokera kuzinthu zambiri zowononga kupatula zitsulo zosungunuka za alkali ndi fluoride zina, komanso ili ndi mphamvu zabwino zotsutsana ndi kumatira.
Zinthu zamagetsiimasankhidwa kutengera mawonekedwe a dzimbiri lamagetsi apakati. Zipangizo zomwe zimagwiritsidwa ntchito kwambiri zimaphatikizapo SS316L, Hastelloy B/C, titaniyamu, tantalum ndi platinum alloys. Pa asidi wowononga kwambiri kapena mayankho okhala ndi ma chloride ion, ma electrode a tantalum kapena platinum angapereke chitetezo chodalirika. Kudzera mu kusankha bwino kwa zinthu zamkati ndi ma electrode, electrode yamagetsi imatha kusintha kuti igwirizane ndi mikhalidwe yosiyanasiyana yogwirira ntchito kuyambira yofatsa mpaka yowononga kwambiri.
Choyezera mpweya wamagetsi chilinso ndi zinthu zina zomwe zimathandiza kuyeza zinthu zodetsedwa komanso zowononga:
Kutaya Kochepa kwa Kupanikizika:Chifukwa cha kusakhalapo kwa chinthu chopondereza, palibe kutayika kwina kwa mphamvu panthawi yoyezera pogwiritsa ntchito electromagnetic flowmeter komwe kungakhale kofunikira kwambiri pa njira yolumikizirana kwambiri kapena makina opangira zinthu omwe ali ndi mphamvu yochepa yotumizira.
Kukhazikika Kwambiri Kwa Nthawi Yaitali:Choyezera kuyenda kwa magetsi chilibe ziwalo zosuntha, kupewa mavuto monga kutopa kwa makina, kuwonongeka kapena kugwidwa ndi khunyu. Bola ngati zinthu zolumikizirana ndi ma elekitirodi zasankhidwa bwino, kukhazikika kwake kwa nthawi yayitali kumatha kukhala bwino kwambiri kuposa zoyezera kuyenda kwa makina kapena zopindika, zomwe zimafuna kukonza kochepa kwambiri.
Echoyezera kuyenda kwa magetsiikuwonetsa ubwino wapadera poyesa zinthu zodetsedwa/zowononga. Komabe, kugwira ntchito bwino kwa njira iliyonse yaukadaulo kumamangidwa pamaziko a mikhalidwe yoyenera. Ndikofunikira kwambiri kuzindikira kuti chofunikira pakuyesa flowmeter yamagetsi ndikuti medium yoyesedwa iyenera kukhala ndi mulingo winawake wamagetsi (nthawi zambiri osachepera 5 ~ 15).μS/cm). Pa zakumwa zosayendetsa kapena zotsika mphamvu monga madzi osasinthidwa, zosungunulira za hydrocarbon, ndi mafuta, mfundoyi siingathe kupanga mphamvu yogwira ntchito yamagetsi yoyendetsedwa bwino ndikukhazikitsa muyeso womwe ungatheke.Shanghai Wangyuanndi katswiri wopanga zida zaukadaulo wokhala ndi zaka zoposa makumi awiri akugwira ntchito mumakampani. Ngati muli ndi zosowa kapena mafunso okhudzachoyezera kayendedwe ka madzikusankha, chonde musazengereze kulankhulana nafe kuti mupeze chithandizo chaukadaulo ndi mayankho.
Nthawi yotumizira: Marichi-26-2026