Daim ntawv thov ntawm Electromagnetic Flowmeter hauv Ntawv Kev Lag Luam
2022-04-24
Kev lag luam ntawv niaj hnub no yog lub peev, thev naus laus zis, thiab kev lag luam siv hluav taws xob nrog kev tsim khoom loj. Nws muaj cov yam ntxwv ntawm cov khoom muaj zog txuas ntxiv, cov txheej txheem nyuaj ntws, kev siv hluav taws xob siab, cov khoom siv loj ua cov peev txheej, hnyav hnyav load thiab peev loj.
Electromagnetic flowmeters nyob hauv txoj haujlwm tseem ceeb hauv kev lag luam ntawv. Qhov laj thawj tseem ceeb yog qhov ntsuas ntawm lub ntsuas hluav taws xob electromagnetic tsis cuam tshuam los ntawm qhov ceev, qhov kub thiab txias, siab, viscosity, Reynolds tus lej thiab kev hloov pauv ntawm cov kua dej hauv qee qhov ntau; nws qhov ntsuas ntau yog loj heev thiab tuaj yeem npog ob qho tib si turbulent thiab laminar ntws. Kev faib tawm nrawm, uas tsis sib xws los ntawm lwm cov ntsuas ntws. Vim yog cov qauv yooj yim ntawm cov khoom siv hluav taws xob electromagnetic flowmeter, tsis muaj qhov txav txav, qhov cuam tshuam qhov cuam tshuam thiab qhov cuam tshuam uas cuam tshuam qhov ntws ntawm qhov ntsuas nruab nrab, thiab yuav tsis muaj teeb meem xws li cov yeeb nkab thaiv thiab hnav. Nws tuaj yeem txuag tau lub zog siv zog thiab tswj xyuas kev tawm ntawm ib puag ncig cov pa phem.
Cov qauv xaiv cov lus pom zoo rau electromagnetic flow meter.
1. Hauv ob sab phlu
Qhov ntsuas nruab nrab hauv cov txheej txheem papermaking muaj cov yam ntxwv ntawm qhov kub thiab txias siab, thiab muaj cov tshuaj lom neeg ntau, uas yog corrosive. Yog li ntawd, cov electromagnetic flowmeters yog tag nrho cov kab nrog kub resistant PTFE. Txawm hais tias PTFE hauv ob sab phlu yog resistant rau kub kub, nws tsis resistant rau qhov tsis zoo siab. Hauv qee qhov chaw tshwj xeeb, xws li qhov hluav taws xob ntawm qhov nruab nrab-concentration riser, tsis tsuas yog qhov nruab nrab concentration siab, qhov kub thiab txias, tab sis kuj muaj qhov tshwm sim ntawm lub tshuab nqus tsev yuav tshwm sim ib ntus. Hauv qhov no, nws yog qhov yuav tsum tau xaiv PFA hauv ob sab phlu.
2. Cov hluav taws xob
Kev xaiv ntawm electromagnetic flowmeter electrodes nyob rau hauv daim ntawv kev lag luam feem ntau txiav txim siab ob yam: ib tug yog corrosion kuj; lwm yam yog anti-scaling.
Ntau cov tshuaj yuav raug ntxiv rau hauv cov txheej txheem papermaking, xws li NaOH, Na2SiO3, concentrated H2SO4, H2O2, thiab lwm yam. Cov electrodes sib txawv yuav tsum tau xaiv rau cov tshuaj sib txawv. Piv txwv li, tantalum electrodes yuav tsum tau siv rau lub zog acid dielectric electrodes, titanium electrodes feem ntau yog siv rau alkaline xov xwm, thiab 316L stainless hlau electrodes yuav siv tau rau cov pa ntsuas dej.
Hauv kev tsim los tiv thaiv fouling ntawm electrodes, spherical electrodes tuaj yeem xaiv rau qhov nruab nrab feem ntau muaj cov tshuaj fiber ntau rau qhov dav dav ntawm fouling. Lub spherical electrode muaj thaj tsam loj nrog qhov ntsuas nruab nrab thiab tsis yooj yim los ntawm cov khoom siv fiber ntau.
