Ua rau kev tsom xam thiab piv txwv kev ntsuas ntawm electromagnetic flowmeter yuam kev
Electromagnetic flowmeters muaj ntau yam zoo thiab tau siv dav. Txawm li cas los xij, kev xaiv tsis raug, kev teeb tsa, thiab kev siv yuav ua rau muaj kev ua yuam kev ntau ntxiv, qhov tsis ruaj tsis khov, thiab kev puas tsuaj rau lub meter lub cev. Tsab ntawv xov xwm no piav qhia txog qhov ua rau muaj qhov yuam kev ntawm electromagnetic flowmeter, suav nrog ntau xyoo ntawm kev paub thiab cov lus qhia, thiab xaus lus tias cov laj thawj tseem ceeb ntawm electromagnetic flowmeter yuam kev yog raws li hauv qab no.
1.Cov kua hauv lub raj electromagnetic flowmeter tsis puv. Vim tsis txaus siab rov qab los yog qhov chaw tsis zoo ntawm lub ntsuas dej ntws, cov kua hauv lub raj ntsuas tsis tuaj yeem sau. Qhov tshwm sim tsis ua hauj lwm muaj qhov tshwm sim sib txawv vim qhov kev ua tsis tiav thiab cov dej ntws. Yog hais tias ib tug me me ntawm cov pa roj nyob rau hauv ib tug stratified flow los yog wavy ntws nyob rau hauv cov yeeb nkab dej, qhov txhaum tshwm sim yog manifested raws li ib qho kev nce nyob rau hauv qhov yuam kev, uas yog, qhov txaus ntsuas tus nqi tsis phim tus nqi tiag tiag; Yog hais tias qhov ntws yog npuas ntws los yog ntsaws ntws, qhov tshwm sim txhaum tsuas yog tias qhov ntsuas tus nqi tsis phim tus nqi tiag tiag. Tsis tas li ntawd, cov zis sloshing tuaj yeem tshwm sim vim yog lub npog tam sim ntawm cov electrode nto los ntawm cov roj theem; Yog hais tias tus ntoo khaub lig-sectional cheeb tsam ntawm cov roj nyob rau hauv kab rov tav yeeb nkab stratified txaus nce, uas yog, cov degree ntawm cov kua underfilling nce, tso zis sloshing kuj tshwm sim. Yog tias cov kua tsis puv Qhov xwm txheej hnyav heev yog tias cov kua theem qis dua cov electrode, cov zis yuav dhau mus..
Piv txwv 1. Ib lub nkoj nkoj muaj JY series DN80mm electromagnetic flowmeter los ntsuas cov dej ntws. Tus neeg teb xov tooj tau tshaj tawm tias thaum qhov dej ntws yog xoom tom qab kaw lub valve, cov zis tawm mus txog tus nqi tag nrho. Kev tshuaj xyuas ntawm qhov chaw pom tau hais tias tsuas muaj cov yeeb nkab luv luv ntawm lub sensor, thiab cov dej tau ncaj qha tawm mus rau hauv qhov chaw, tab sis lub kaw-off valve tau teeb tsa los ntawm lub sensor. Tom qab lub valve raug kaw, cov dej hauv lub ntsuas ntsuas cov yeeb nkab tau ntws tawm tag nrho. Rov kho lub valve mus rau txoj hauj lwm tom qab lub flowmeter, thiab qhov txhaum yuav raug daws.
2. Cov kua muaj cov khib nyiab. Cov kua muaj cov hmoov, cov khoom los yog cov fibers thiab lwm cov khib nyiab, uas yuav ua rau tsis ua hauj lwm: ① slurry suab nrov; ② electrode nto paug; ③ conductive deposition txheej los yog insulating deposition txheej npog lub electrode los yog hauv ob sab phlu; ④ hauv ob sab phlu los yog nws yog npog los ntawm sediments, thiab kev ncig hla ntu ntu yog txo. Yog tias cov khoom siv hluav taws xob tau muab tso rau ntawm cov kab hluav taws xob insulating ntawm lub ntsuas hluav taws xob ntawm lub ntsuas hluav taws xob, cov teeb liab ntws yuav luv luv thiab lub ntsuas hluav taws xob yuav poob. Txij li thaum cov khoom siv hluav taws xob maj mam tso, hom kev ua txhaum no feem ntau tsis tshwm sim thaum lub sijhawm debugging, tab sis tsuas yog tshwm sim tom qab lub sijhawm ua haujlwm.
Piv txwv 2. Ntawm cov txheej txheem txiav electrolytic hauv cov cuab yeej hauv lub khw ntawm lub tshuab hluav taws xob diesel, JY series DN80mm ntsuas tau siv los ntsuas thiab tswj cov ntws ntawm cov ntsev ntsev electrolyte kom tau txais kev txiav zoo tshaj plaws. Thaum xub thawj, lub 'meter' tau ua haujlwm li qub. Tom qab 2 lub hlis ntawm kev siv tsis tu ncua, tus nqi ntws tawm tus nqi tau txais me me thiab me dua kom txog rau thaum lub teeb liab ntws ze ze rau xoom. Nyob rau ntawm qhov chaw soj ntsuam, nws tau pom tias ib txheej ntawm cov xeb daj tau tso rau ntawm qhov chaw ntawm cov txheej insulating. Tom qab so thiab ntxuav, lub ntsuas ntsuas tau ua haujlwm ib txwm. Cov txheej daj xeb yog tshwm sim los ntawm kev tso nyiaj ntau ntawm cov hlau oxide hauv cov electrolyte.
Qhov piv txwv no yog qhov ua txhaum thaum ua haujlwm. Txawm hais tias nws tsis yog ib qho txhaum cai, yog tias cov kav hlau ferrous hlau yog corroded loj heev thiab cov xeb txheej tau muab tso rau, qhov cuam tshuam luv luv no kuj yuav tshwm sim. Thaum nws pib khiav ib txwm, thiab cov zaub ntws ua me me thiab me me raws li lub sijhawm dhau mus, qhov ua tau ntawm qhov ua tsis tiav yuav tsum tau txheeb xyuas.
3. Rau cov kua uas yuav crystallize, lub electromagnetic flowmeter yuav tsum tau siv ceev faj. Qee cov khoom siv tshuaj uas yooj yim rau crystallize tuaj yeem ntsuas tau raws li qhov kub thiab txias. Vim hais tias cov kua dej xa cov yeeb nkab muaj qhov ntsuas kub zoo thiab rwb thaiv tsev, nws yuav tsis crystallize thaum khaws cia kub. Txawm li cas los xij, ntsuas lub raj ntawm electromagnetic flow sensor yog qhov nyuaj rau kev siv cov cua sov tracing thiab rwb thaiv tsev. Yog li ntawd, thaum cov kua dej ntws los ntawm lub ntsuas ntsuas, nws yog ib qho yooj yim uas yuav ua rau cov txheej txheem ntawm cov phab ntsa sab hauv vim qhov kub thiab txias. Txij li thaum kev siv lwm cov ntsiab lus ntawm flowmeter ntsuas kuj muaj teeb meem ntawm crystallization, yog li thaum tsis muaj lwm txoj kev zoo dua, ib tug "ntiv nplhaib" electromagnetic flow sensor nrog ib tug luv luv ntsuas raj ntev yuav raug xaiv, thiab lub upstream pipeline ntawm lub flowmeter. Thaum tshav kub kub tracing thiab rwb thaiv tsev muaj zog. Hais txog txoj kev sib txuas ntawm cov yeeb nkab, qhov ntws sensor yog yooj yim rau disassemble thiab sib sau ua ke, thiab nws tuaj yeem yooj yim disassembled rau kev txij nkawm thaum nws crystallizes.
Piv txwv 3 Nws tsis yog qhov tsis yooj yim rau electromagnetic flowmeters tsis ua haujlwm vim cov kua crystallization. Piv txwv li, ib lub smelter tau nruab ib pawg ntawm electromagnetic flowmeters los ntsuas qhov ntws ntawm cov tshuaj. Vim hais tias lub ntsuas lub raj ntawm lub electromagnetic flow sensor yog ib qho nyuaj rau cua sov thiab ua kom sov, ib txheej ntawm crystals tsim nyob rau hauv lub puab phab ntsa thiab cov electrode tom qab ob peb lub lis piam, ua rau lub internal kuj ntawm lub teeb liab qhov chaw los ua siab heev. Loj, lub 'meter' qhia tias tus nqi yog txawv txav. Vim qhov loj txoj kab uas hla ntawm cov electromagnetic flowmeters, nquag disassembly thiab ntxuav yog unbearable, yog li qhib channel flowmeter yog siv nyob rau hauv lub kawg.
4. Cov teeb meem tshwm sim los ntawm kev xaiv tsis raug ntawm cov khoom siv electrode thiab grounding nplhaib. Lub electromagnetic flowmeter thiab ntsuas nruab nrab yog nyob rau hauv kev sib cuag nrog cov khoom uas nyob rau hauv kev sib cuag nrog electrode thiab lub nplhaib hauv av. Ntxiv nrog rau kev tiv thaiv corrosion, tsuav nws yog ib qho electrode, lub electromagnetic flowmeter nyob rau hauv kev sib cuag nrog nruab nrab. Nto nyhuv. Cov teebmeem saum npoo yuav tsum muaj xws li: ① Cov tshuaj tiv thaiv tshuaj (tsim cov zaj duab xis passive rau saum npoo, thiab lwm yam); ② Electrochemistry thiab polarization (tsim hluav taws xob muaj peev xwm); ③Catalyst nyhuv (tsim ntawm aerosol rau saum npoo ntawm electrode, thiab lwm yam). Lub nplhaib hauv av kuj muaj cov teebmeem no, tab sis qhov kev cuam tshuam tsawg dua.
Piv txwv 4. Lub Hoobkas tshuaj (smelting) tau siv ntau tshaj 20 Hastelloy B electrode electromagnetic flowmeters los ntsuas cov tshuaj hydrochloric acid uas muaj ntau dua, thiab cov teeb liab tso tawm tsis ruaj khov. Kev tshuaj xyuas ntawm qhov chaw tau lees paub tias lub cuab yeej zoo li qub, thiab lwm yam cuam tshuam uas yuav ua rau cov khoom tsim tawm kuj raug tshem tawm. Txawm li cas los xij, nws ua haujlwm zoo thaum ntsuas hydrochloric acid nrog Hastelloy B electrode meter hauv ntau qhov chaw. Thaum soj ntsuam seb qhov ua rau ntawm qhov txhaum yog tshwm sim los ntawm qhov sib txawv ntawm qhov concentration ntawm hydrochloric acid, yuav tsum tsis muaj kev paub txog cov nyhuv ntawm cov concentration ntawm hydrochloric acid nyob rau hauv electrode nto, thiab tseem tsis tau txiav txim. Vim li no, lub 'meter' chaw tsim tshuaj paus thiab cov neeg siv chav tsev siv nyob rau hauv lub site tej yam kev mob ntawm cov tshuaj nroj tsuag los ua ib tug tiag tiag flow test los hloov cov concentration ntawm hydrochloric acid. Qhov concentration ntawm hydrochloric acid maj mam nce. Thaum cov concentration tsawg, cov zis ntawm lub 'meter' yog ruaj khov. Thaum cov concentration nce mus rau 15 feem pua -20 feem pua, cov zis ntawm lub 'meter' pib co. Thaum cov concentration nce mus txog 25 feem pua, qhov tso zis ntau zog yog siab li 20 feem pua. Tom qab hloov mus rau tantalum electrode electromagnetic flowmeter, nws khiav ib txwm.
5. Cov teeb meem tshwm sim los ntawm cov conductivity ntawm cov kua ntau tshaj qhov tso cai. Yog hais tias cov conductivity ntawm cov kua yog nyob ze rau qhov qis qis, co yuav tshwm sim. Vim tias qhov qis qis tau teev tseg los ntawm cov chaw tsim khoom cov cuab yeej tshwj xeeb yog tus nqi qis tshaj plaws uas tuaj yeem ntsuas tau nyob rau hauv ntau yam kev siv, thiab cov xwm txheej tiag tiag tsis tuaj yeem ua tau zoo, yog li kuv tau ntsib cov dej distilled qis lossis deionized ntau zaus. Nws cov conductivity yog ze rau qhov qis tshaj 5 teev los ntawm cov electromagnetic flowmeter specification, tab sis cov zis shakes thaum nws siv. Nws yog feem ntau ntseeg hais tias qhov qis qis ntawm conductivity uas ntsuas tau ruaj khov yog 1 mus rau 2 qhov kev txiav txim siab dua. Cov conductivity ntawm cov kua yuav tau sab laj nyob rau hauv cov ntaub ntawv muaj feem xyuam. Yog tias tsis muaj cov ntaub ntawv npaj tau, nws tuaj yeem raug kuaj thiab ntsuas nrog lub ntsuas ntsuas. Tab sis qee zaum muaj qee qhov kev kuaj coj los ntawm cov raj xa mus rau qhov chaw kuaj xyuas kom paub tseeb tias nws muaj, tab sis qhov tseeb electromagnetic flowmeter tsis ua haujlwm. Qhov no yog vim qhov sib txawv ntawm cov kua dej thaum ntsuas cov conductivity thiab cov kua hauv cov kav dej. Piv txwv li, cov kua tau absorbed CO2 los yog tsis nyob rau hauv cov huab cua los tsim carbonic acid los yog nitric acid, thiab cov conductivity nce.
Rau cov suab nrov slurry uas ua los ntawm cov kua uas muaj cov khoom siv los yog fibers, txoj kev ua kom lub zog ua kom muaj zog tuaj yeem txhim kho cov zis sloshing. Qee zaus-kho tau JYLDE DN300 electromagnetic flowmeters ntsuas qhov concentration ntawm 3.5 feem pua corrugated board slurry, thiab ntsuas qhov tso tawm instantaneous flow sloshing tus nqi ntawm txawv excitation frequencies ntawm qhov chaw. Thaum qhov zaus qis dua, 50 / 32Hz, kev co yog siab li 10.7 feem pua; Thaum qhov zaus nce mus rau 50/2Hz, qhov kev co yog txo mus rau 1.9 feem pua, thiab cov nyhuv yog pom tseeb heev.