I-Electromagnetic flowmeter (EMF), ekwabizwa ngokuba yi-magmeter/mag flowmeter, sisixhobo esisetyenziswa ngokubanzi sokulinganisa isantya sokuhamba kombane osebenza ngombane kwimizi-mveliso nakwizicelo zikamasipala. Isixhobo sinokunikezela ngesisombululo esithembekileyo kunye nesingenasiphazamisi sokulinganisa ukugeleza kwevolumetric ukuxhathisa umthetho weFaraday, ofanelekileyo kwi-liquid medium kunye ne-conductivity efanelekileyo.
Amandla e-electromotive e-E anokubonakaliswa ngale fomyula ilandelayo:
E=KBVD
Apho
K= Flowmeter rhoqo
B= Ubunzulu beMagnetic induction
V= isantya sokuqukuqela esiphakathi kwinqanaba lombhobho wokulinganisa
D= Idayamitha engaphakathi yombhobho wokulinganisa
UmGaqo wokuSebenza
Umgaqo osisiseko wokusebenza kwe-mag flowmeter ngumthetho kaFaraday wokungeniswa kombane wombane. Ithi xa i-conductor ihamba kwindawo yemagnethi, amandla e-electromotive aya kunyanzelwa.
Ngokukodwa kwimeko yokusebenza kwe-electromagnetic flowmeter's, ulwelo oluqhubayo oluhamba ngombhobho wesixhobo lusebenza njengomqhubi. Ipere yeekhoyili zenza indawo efanayo yamagnetic i-perpendicular ukuya kwicala lokuhamba. Imigca yomhlaba wemagnethi iya kunqunyulwa ngokuhamba. Amandla e-electromotive eyenziwayo ke ngoko ayaveliswa aze emva koko aviwe ngepere yee-electrode zetsimbi kwaye acutshungulwe abe yimveliso yombane esemgangathweni.
Izinto eziluncedo kuMlinganiso weMagnetic Flow
Ubulula bolwakhiwo:Ukwakhiwa kwe-EMF ayinayo nayiphi na indawo ehambayo, ukungabikho kwayo kunciphisa ukunxiba komatshini kunye nesidingo sokugcinwa. Kwakhona akukho nto iphazamisayo ngaphakathi kombhobho wayo wokulinganisa onokukhokelela ekuthinteleni koxinzelelo lwentloko kunye nokuvala i-viscous medium.
Iimfuno ezincinci zokuxhoma:Ufakelo lwe-EMF lufuna ubude obufutshane obufutshane bemibhobho enyukayo kunye nesezantsi ethe ngqo. Ukusebenza ngokuzimeleyo, i-mag flowmeter ayifuni i-different pressure transmitter ukuncedisa umlinganiselo wayo. Ukuqukuqela kunokulinganiswa macala omabini, ukucutha unyino lwemitha yokuqhelaniswa nemitha kwaye ilungele usetyenziso lokujongwa kokubuyela umva.
Ukuhambelana:Umlinganiselo wokuhamba kweMag unokubonisa ukusebenza okuzinzile kunye nokuthembekileyo okungachatshazelwa nzima kwiiparamitha eziphakathi koxinzelelo, ubushushu, ubuninzi kunye ne-viscosity. Iimathiriyeli zokwaleka ezenziwe ngokwezifiso kunye ne-electrode metal cab anti-corrosion kunye neemfuno ezixhathisayo zokunxiba, ezisebenza kuluhlu olubanzi lweekhemikhali ezinobundlongondlongo, uludaka oluludaka, kunye nococeko olufuna imidiya engamanzi.
Ukuchaneka:Indlela ye-Electromagnetic ibonakalisa imilinganiselo echanekileyo phakathi kweendlela ezahlukeneyo zokulinganisa ukuhamba kwevolumetric. Ukuchaneka kwe-EMF ngokuqhelekileyo yi-±0.5% ukuya ku-±0.2% yokufunda.
Ukulinganiselwa
Ukuqhuba kuyafuneka:Ulwelo lokulinganisa lwe-EMF lufuneka ukuba lube ne-conductivity eyaneleyo (≥5μS/cm). Yiyo loo nto igesi kunye nolwelo olungaqhubekiyo lungaphaya kokufikelela kumlinganiselo wokuhamba kombane. Imidiya eqhelekileyo yemizi-mveliso engasebenziyo njengamanzi acocwe ngomphunga, izinyibilikisi eziphilayo kunye neemveliso ze-oyile azikwazi ukusebenzisa le ndlela yokuhlola ukuhamba.
Umbhobho ozaliswe ngokupheleleyo:Ukusebenza kwe-EMF kufuna ukucwiliswa ngokupheleleyo kunye noqhagamshelwano oluqhubekayo lwe-electrode kunye nolwelo oluqhubayo. Ngoko ke ngexesha lokulinganisa inkqubo kufuneka iqinisekise ukuba icandelo lombhobho we-EMF lizaliswe ngokupheleleyo ngophakathi ukuze kufezekiswe ukusebenza kakuhle.
Isicelo
Ngokusekwe kumgaqo wayo owahlukileyo wokulinganisa, i-electromagnetic flowmeter ifaneleke ngakumbi ukulinganisa ulwelo oluqhubayo kwiimeko ezinjengezi:
Ubonelelo ngamanzi:Ukulinganisa amanzi akrwada angaphakathi kunye nokuphuma kwamanzi acociweyo kulawulo lobutyebi bamanzi.
Ukucocwa kogutyulo: Ukulinganisa ilindle likamasipala, amanzi amdaka avela kwimizi-mveliso, kunye nodaka olunokuhanjiswa okwaneleyo.
Ikhemikhali:Ukulinganisa ii-asidi ezahlukeneyo, i-alkali, izisombululo zetyuwa, kunye nezinye imidiya ezonakalisa kakhulu zisebenzisa i-linings resistant corrosion and electrode materials.
Isiselo:Ukulinganisa izinto eziluhlaza, izibilini kunye neemveliso ezigqityiweyo ngexesha lokuveliswa kobisi, ijusi, isiselo esinxilisayo kunye nezinye iziselo.
Isinyithi:Ukulinganisa i-mineral slurry, i-tailing slurry, amanzi amdaka ngamalahle ekusetyenzweni kwe-ore ngemathiriyeli engagugiyo.
Amandla:Ukulinganisa ukujikeleza kwamanzi okupholisa, i-condensate, i-chemical treatment fluids kwiinkqubo zeplanti yamandla, njl.
Shanghai Wangyuanuneminyaka engaphezu kwama-20 yamava okwenziwa kunye nenkonzo yokulinganisa isixhobo. Ulwazi lwethu oluphangaleleyo lobuchwephesha kunye nophononongo lweemeko kuzo zonke iinkalo ezinazo zonke iintlobo zeemitha zokuqukuqela zisenza sikwazi ukubonelela ngezisombululo zokujonga ukuhamba ezihlangabezana neemfuno zakho kanye. Ukuba kukho nayiphi na imibuzo kunye neemfuno malunga neemitha zokuqukuqela kwe-electromagnetic, nceda ungalibazisi ukunxibelelana nathi.
Ixesha lokuposa: Jun-03-2025