Ib qho electromagnetic flowmeter - kuj hu ua magnetic flow meter los yog mag meter - ntsuas tus nqi ntws ntawm cov kua dej hauv cov yeeb nkab puv. Koj yuav pomelectromagnetic flowmeterhla dej thiab dej khib nyiab, kev ua tshuaj lom neeg, zaub mov thiab dej haus, pulp thiab ntawv, thiab mining slurry kab. Yog vim li cas engineers ncav cuag rau ib qho yog qhov ua tau: tsis muaj qhov txav mus rau hauv txoj kev ntws, yog li lub ntsuas ntsuas tau nyeem los ntawm cov dej qias neeg, abrasive, los yog corrosive kua uas yuav txhaws los yog hnav tawm lub tshuab ntsuas - muab cov kua hluav taws xob thiab cov yeeb nkab nyob twj ywm.
Phau ntawv qhia no piav qhia txog lub hauv paus ntsiab lus ua haujlwm ua ntej, tom qab ntawd qhia tias txoj cai ntawd txiav txim siab qhov twg lub mag meter haum, yuav ua li cas rau nruab, thiab yuav ua li cas kom paub meej ua ntej koj yuav.
Hauv luv luv:Lub ntsuas hluav taws xob sib nqus siv Faraday txoj cai ntawm induction. Lub conductive kua ua raws li ib tug txav conductor; Raws li nws dhau los ntawm ib qho chaw sib nqus hauv lub 'meter', nws tsim ib qho hluav taws xob me me uas nce thiab ntog nrog kev tshaj tawm. Electrodes nyob rau hauv cov yeeb nkab phab ntsa khaws qhov voltage, thiab vim hais tias lub bore kab yog tsau, lub transmitter converts tshaj tawm mus rau hauv volumetric txaus tus nqi. Nws ua haujlwm tsuas yog thaum cov kua ua hluav taws xob thiab cov yeeb nkab khiav puv.
Dab tsi yog Electromagnetic Flowmeter?
Lub ntsuas hluav taws xob electromagnetic yog lub ntsuas ntim ntim rau cov kua dej ua kua. Es tsis txhob rotor, iav, turbine, los yog ob qho tib si nyob rau hauv cov yeeb nkab, nws siv ib tug sib nqus teb thiab ib tug khub ntawm electrodes los ntes cov kua zog. Cov kua nws tus kheej yog tus neeg xyuas pib txav: raws li nws ntws los ntawm cov hlau nplaum hauv lub 'meter' lub cev, nws tsim ib qho hluav taws xob me me, uas lub ntsuas ntsuas tau nyeem thiab hloov mus rau qhov nrawm. Vim hais tias lub bore kab yog paub, lub transmitter ces xam volumetric txaus.
Tib qhov ntsuas mus los ntawm ntau lub npe - electromagnetic flowmeter, magnetic flow meter, mag meter, magmeter, thiab conductive-kua flow meter. Lawv txhua tus piav txog tib txoj kev ntsuas.
Electromagnetic Flowmeter Ua Haujlwm Txoj Cai (Faraday Txoj Cai)
Lub hauv paus ntsiab lus ua haujlwm yog nyob ntawmFaraday txoj cai ntawm electromagnetic induction: Thaum tus neeg xyuas pib txav los ntawm qhov chaw sib nqus, qhov hluav taws xob yog induced thoob plaws nws. Nyob rau hauv ib tug mag meter tus neeg xyuas pib tsis yog ib tug hlau pas nrig - nws yog cov conductive kua txav los ntawm lub ntsuas raj.
Qhov induced voltage yog proportional rau qhov nruab nrab tshaj tawm ntawm cov kua. Kev khiav ceev ua rau lub teeb liab muaj zog dua; slower flow ua ib tug qaug zog. Kev sib raug zoo yooj yim yog:
Induced voltage=magnetic field zog × electrode nrug × flow velocity
Ob ntawm peb nqe lus yog kho los ntawm lub 'meter' tus tsim. Lub zog teb yog tuav tas li los ntawm cov khoom siv hluav taws xob, thiab cov electrode nrug yog teem los ntawm lub raj. Qhov ntawd tawm qhov nrawm raws li qhov sib txawv ntawm qhov ntsuas tau los daws - uas yog raws nraim qhov voltage muab rau nws.
Yog vim li cas cov kua yuav tsum coj
Faraday txoj cai tsuas yog tsim lub teeb liab siv tau yog tias tus neeg tsav tsheb txav tau ua tiag tiag. Hauv cov kua, conductivity los ntawm yaj ions - ntsev, acids, thiab minerals. Cov kais dej, dej khib nyiab, thiab cov txheej txheem feem ntau muaj cov ions txaus los ntsuas tau yooj yim. Roj, gases, chav, thiab ultrapure los yog deionized dej feem ntau tsis. Rau keeb kwm yav dhau ntawm dab tsi nce lossis txo qis conductivity, lubUSGS piav qhia txog hluav taws xob conductance hauv dejyog ib tug ntshiab primer, tab sis tus naj npawb uas tseem ceeb rau kev xaiv yog qhov tsawg kawg nkaus conductivity luam tawm nyob rau hauv ib tug tshwj xeeb meter's datasheet.
Los ntawm Velocity mus rau Volumetric Flow Rate
Ib lub mag 'meter' tsis hnov qhov ntim ncaj qha - nws paub qhov nrawm. Lub transmitter multiplies qhov ntsuas nruab nrab tshaj tawm los ntawm tus ntoo khaub lig ruaj -sectional cheeb tsam ntawm lub bore (Q =} v × A) los tsim volumetric flow. Qhov no yog vim li cas cov yeeb nkab - txoj kab uas hla tsis nyob rau hauv lub transmitter yuav tsum phim lub 'meter' tiag bore: ib txoj kab uas hla tsis raug ntsuas txhua qhov kev nyeem nce lossis nqis los ntawm qhov xwm txheej ntawm qhov yuam kev. Nws kuj yog vim li cas kev nyeem ntawv mag meter feem ntau yog ywj siab ntawm cov kua ntom ntom thiab viscosity, tsis zoo li lwm cov thev naus laus zis.
Yuav ua li cas ib tug Mag ' meter ' tig ua kua txav mus rau hauv lub Flow Signal?
Kev ntsuas khiav los ntawm ib qho kev qhia meej meej:
- Coils ntawm lub 'meter' lub cev tsim ib qho chaw sib nqus thoob plaws lub ntsuas raj thiab los ntawm cov kua.
- Raws li cov kua conductive txav los ntawm qhov chaw, nws induces ib tug me me voltage.
- Electrodes nyob rau sab nraud ntawm lub raj khaws cov voltage. Lub teeb liab yog me me, yog li kev kuaj xyuas kom huv thiab zoo hauv av.
- Lub transmitter lim suab nrov, them nyiaj rau lub ntsuas qhov ntsuas, thiab hloov qhov hluav taws xob mus rau qhov nrawm.
- Lub transmitter xam volumetric flow thiab qhia los yog xa nws - feem ntau li 4–20 mA, mem tes, zaus, RS485 Modbus, los yog HART.
Cov Cheebtsam tseem ceeb ntawm Magnetic Flow Meter
Ntsuas Tube
Ntu cov kua ntws los ntawm. Nyob rau hauv ib tug tag nrho - tho txawv tsim lub puab txoj kab uas hla yog sib npaug zos rau cov raj xa dej, uas ua rau lub siab poob qis thiab zam txhua yam kev cuam tshuam.
Sib nqus Coils
Cov no tsim cov magnetic teb. Qhov kev ruaj ntseg ntawm qhov chaw ntawd ncaj qha txwv qhov kev ntsuas rov ua tau npaum li cas.
Cov hluav taws xob
Cov electrodes nyeem qhov induced voltage thiab yuav tsum nyob twj ywm los ntawm cov kua. Yog hais tias cov yeeb nkab yog khoob lossis tsuas yog ib nrab puv, qhov kev nyeem ntawv poob. Cov khoom siv hluav taws xob yuav tsum ua kom haum rau cov kua dej - tus qauv 316L stainless hlau yog qhov zoo rau cov dej thiab cov dej khib nyiab feem ntau, tab sis cov tshuaj lom neeg xav tau cov alloys xws li Hastelloy, titanium, lossis tantalum. Hauv txheej- cov xov xwm tawm,electrode tu thiab tuua ib feem ntawm txoj kev npaj ua haujlwm.
Liner
Lub liner insulates lub raj los ntawm cov kua thiab tiv thaiv lub cev. Cov kev xaiv feem ntau yog PTFE, PFA, tawv lossis mos roj hmab, polyurethane, thiab neoprene, xaiv raws li cov kua, kub, siab, thiab puas. Qhov tsis ncaj ncees lawm liner tuaj yeem o, corrode, lossis hnav los ntawm thiab ua rau lub neej luv, yog lixaiv cov khoom siv hauv ob sab phlu kom raugyog ib qho kev qhia tshwj xeeb- theem kev txiav txim siab, tsis yog tom qab.
Transmitter
Lub transmitter powers lub sensor, ua cov teeb liab, xam txaus, thiab tsav cov zaub thiab outputs mus rau ib tug PLC, SCADA system, los yog totalizer. Nws tuaj yeem ntsia tau rau ntawm lub sensor (compact) lossis nyob deb ntawm qhov chaw vibration, tshav kub, dej nyab, lossis kev nkag tsis zoo ua rau qhov sib cais qhov kev xaiv zoo dua.
Dab tsi ua kua tuaj yeem ntsuas Electromagnetic Flowmeter?
Thawj txoj cai ntawm kev xaiv: ib lub mag meter ntsuas cov kua dej xwb. Cov lus hauv qab no muab cov xov xwm zoo sib xws rau hauv peb pawg.
| Kev tsim nyog | Hom kua | Yuav ua li cas kom paub meej |
|---|---|---|
| Tsim nyog | Ntxuav thiab ua dej, dej txias,dej khib nyiab thiab dej phwj tuaj, sludge thiab slurry, conductive chemical solutions, acids thiab alkalis (nrog cov ntaub ntawv raug), cov kua zaub mov thiab dej haus (tsim huv huv), pulp thiab ntawv kua | Cov yeeb nkab khiav puv; conductivity tshaj qhov tsawg kawg nkaus 'meter' |
| Siv ceev faj | Tsawg-cov kua conductivity nyob ze ntawm qhov pib, hnyav txheej xov xwm, abrasive slurry heev, dej demineralized ze rau qhov txwv | Txheeb xyuas qhov tsawg kawg nkaus conductivity; npaj rau liner / electrode hnav lossis txheej |
| Tsis haum | Gas, huab cua, chav, roj feem ntau, qis- conductivity hydrocarbons, deionized los yog ultrapure dej hauv qab qhov txwv, tsis yog -cov kuab tshuaj conductive, cov kav dej uas tsis tuaj yeem nyob puv | Siv cov cuab yeej sib txawv (saib qhov sib piv hauv qab) |
Yam tsawg kawg nkaus Conductivity: Yuav kuaj dab tsi ua ntej koj xaiv
"Conductive txaus" yog ib qho kev xaiv feem ntau yuam kev, yog li nws khwv tau nws tus kheej daim tshev. Conductivity feem ntau yog hais nyob rau hauv microsiemens ib centimeter (µS / cm). Ib txwm kais dej thiab txheej txheem dej feem ntau zaum hauv ntau pua µS / cm - yooj yim tshaj li ob peb µS / cm ib tus qauv mag meter xav tau. Demineralized dej, chav condensate, thiab siab - cov txheej txheem purity dej tuaj yeem poob qis txaus kom xav tau tus qauv qis tshwj xeeb - conductivity qauv lossis ib lub meter sib txawv kiag li.
Ua ntej cog lus rau tus qauv:
- Nrhiav qhov ntsuas qhov ntsuas qhov ntsuas qhov tsawg kawg nkaus ntawm daim ntawv teev npe - tsis suav tias yog kev lag luam ua ntej.
- Ntsuas los yog kwv yees koj cov kua conductivity ntawm nws qhov kev khiav hauj lwm kub, txij li thaum conductivity hloov nrog kub.
- Tawm ntawm ntug. Ciam teb qhov tseem ceeb drift nrog dilution, kub, thiab raws caij nyoog hloov.
- Yog tias koj nyob ze rau qhov txwv, nug tus neeg muag khoom kom paub meej txog koj cov kua dej tiag tiag es tsis yog kwv yees.
Liner thiab Electrode Selection Guide
Liner thiab electrodes yog ob qho tib si nyob rau hauv kev sib cuag nrog cov kua, yog li lawv tsav ob qhov tseeb thiab kev pab lub neej. Cov duab qhia hauv qab no yog lub hauv paus pib - ib txwm lees paub tiv thaiv cov tshuaj lom neeg - daim ntawv qhia kev sib raug zoo thiab qhov kub thiab txias, siab, concentration, thiab cov khoom thauj khoom.
| Cov khoom siv liner | Hom kev siv | Sau ntawv |
|---|---|---|
| PTFE / PFA | Cov tshuaj aggressive, acids, alkalis, huv / khoom noj | Cov tshuaj tiv thaiv dav dav; xyuas qhov ntsuas kub thiab lub tshuab nqus tsev |
| Hard / mos roj hmab | Dej, dej khib nyiab, dej phwj tuaj, slurry me me | Zoo abrasion kuj, tus nqi qis |
| Polyurethane | Abrasive slurry, xuab zeb, mining | Muaj zog abrasion tsis kam; nqaim tshuaj thiab kub ntau yam |
| Neoprene | General dej thiab dej khib nyiab | General -lub hom phiaj, kev lag luam |
| Cov khoom siv hluav taws xob | Hom kev siv |
|---|---|
| 316L stainless hlau | General dej thiab dej khib nyiab |
| Hastelloy C | Muaj ntau cov kua qaub thiab cov tshuaj chloride |
| Titanium | Dej hiav txwv thiab chloride- cov kua dej nplua nuj |
| Tantalum | Muaj zog acids xws li concentrated hydrochloric acid |
| Platinum / Pt-Ir | Cov tshuaj txhoj puab heev los yog oxidizing tshuaj |
Installation Factors uas cuam tshuam rau qhov tseeb
Nyob rau hauv ib tug noj qab haus huv mag meter, feem ntau cov kev ua yuam kev nyob rau hauv rov qab mus rau installation es tsis yog lub hauv paus ntsiab lus nws tus kheej.
Khaws cov yeeb nkab puv
Cov electrodes yuav tsum tau wetted, yog li nruab qhov twg cov yeeb nkab nyob twj ywm tag nrho. Vertical upward flow feem ntau nyiam rau cov kua uas nqa cov khib nyiab los yog cua, vim tias nws ua rau cov bore puv thiab ua rau tsis muaj sediment. Zam qhov siab tshaj plaws ntawm ib kab, qhov chaw huab cua sib sau, thiab zam qhov tsis pub dawb - tso dej rau hauv qab.
Hauv av 'meter' kom raug
Vim hais tias lub 'meter' nyeem ib tug me me voltage, grounding tsis yog xaiv tau - tsis zoo grounding qhia li suab nrov thiab wandering nyeem ntawv. Nyob ntawm cov khoom siv yeeb nkab, koj yuav xav tau cov nplhaib hauv av, cov electrodes hauv av, lossis cov hlua hauv av; yas, lined, thiab insulated piping yuav luag ib txwm xav tau kev saib xyuas ntxiv. Yog tias koj tsuas muaj sijhawm los ua ib yam ntawm qhov teeb meem kev teeb tsa, nws feem ntau yogtau txais txoj cai hauv av.
Muab lub Meter rau Stable Flow Profile
Cov twj tso kua mis, tswj li qub, lub luj tshib, thiab cov reducers tsim swirl thiab turbulence uas cuam tshuam kev nyeem ntawv. Khaws lub 'meter' kom deb ntawm cov kev cuam tshuam thiab hwm tus neeg tsim khoomupstream thiab downstream ncaj nraim -khiav yuav tsum. Nyob qhov twg qhov chaw nruj, xaiv txoj hauj lwm uas txo qis qhov viav vias thiab cua nkag mus rau qhov uas yooj yim xwb.
Installation yuam kev kom zam
- Mounting ntawm qhov siab tshaj plaws ntawm cov kav dej, qhov twg cov hnab ntim cua tsim.
- Kev txhim kho ntawm lub downward los yog dawb -draining khiav uas cia cov yeeb nkab khoob.
- Hla lub nplhaib hauv av ntawm cov yas los yog kab yeeb nkab.
- Tso lub 'meter' tam sim ntawd downstream ntawm lub twj tso kua mis los yog ib nrab qhib valve.
- Txais ib feem ntawm cov yeeb nkab thiab cia siab tias qhov kev nyeem ntawv tuav.
Ib daim ntawv teev npe ua ntej ua ntej - pib yog nyob rau hauv pebElectromagnetic flowmeter installation sau ntawv.
Piv txwv ntawm Daim Ntawv Thov (Cov Lus Ceeb Toom)
Lub hauv paus ntsiab lus zoo ib yam ntawm cov haujlwm; Qhov kev hloov pauv twg yog qhov nthuav dav tom koj. Ob peb tus qauv los ntawm kev teeb tsa tiag tiag:
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Municipal wastewater kab
- Lub hauv paus ntsiab lus 'meter' tsis tshua muaj qhov teeb meem ntawm no - khoob- cov kav dej, cua nkag tom qab lub twj tso kua mis, thiab cov av tsis zoo. Ib qho haum haum yog DN100 kab nrog cov roj hmab liner, 316L electrodes, thiab 4-20 mA ntxiv rau RS485 tso zis rau SCADA, mounted vertically nrog cov yeeb nkab pov thawj tag nrho.
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Tshuaj tua kab
- Material compatibility dominates. Muab cov tshuaj npe, concentration, thiab kub kom cov liner (feem ntau PTFE / PFA) thiab electrodes (feem ntau Hastelloy los yog tantalum) tuaj yeem sib phim; "stainless" default tuaj yeem ua tsis tiav hauv lub lis piam.
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Khoom noj khoom haus- qib / CIP dej
- Kev sib txuas huv huv, qhov chaw tiav, thiab cov ntaub ntawv pov thawj rau kev huv huv huv - hauv - qhov chaw cycles tseem ceeb npaum li qhov ntws ntau.
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Mining slurry
- Abrasion yog tus tua neeg. Liner durability (polyurethane yog ib qho) thiab electrode hnav, tsis teeb liab lub zog, txiav txim siab lub neej kev pab.
Electromagnetic Flowmeter vs Lwm Flow Meters
| Flow Meter hom | Zoo tshaj rau | Yog vim li cas engineers xaiv nws | Saib - tawm |
|---|---|---|---|
| Electromagnetic | Conductive kua: dej, dej khib nyiab, slurry, tshuaj | Tsis muaj qhov txav txav, tsis tshua muaj siab poob, qhov ntom ntom - ywj siab, tuav cov khoom khib nyiab | Conductive kua xwb; xav tau ib tug tag nrho cov yeeb nkab thiab zoo grounding |
| Turbine | Ntxuav, tsawg- kua viscosity | Cov lus teb ceev ceev, compact, zoo raug ntawm cov kua dej huv | Txav qhov chaw hnav thiab txhaws; rhiab heev rau viscosity thiab solids |
| Ultrasonic | Cov dej huv huv, rov ua dua tshiab, cov kav dej loj | Clamp- ntawm kev xaiv yuav tsum tsis txhob txiav cov yeeb nkab; tsis muaj kev cuam tshuam | Nyob ntawm cov yeeb nkab mob, kua clarity, thiab kev txhim kho zoo |
| Coriolis | Mass flow, ceev, ceev ceev hloov mus, siab raug | Direct huab hwm coj thiab ceev, siab heev | Tus nqi siab dua thiab siab poob; qhov loj thiab qhov hnyav loj hlob sai |
| Differential siab | Chav, roj, kua, siab siab | Mature, dav txais | Ntxiv kev poob siab; xav tau kev khiav ncaj thiab impulse kab |
Mag Meter vs Ultrasonic rau Retrofit
Ntawm retrofit tej yaam num xaiv feem ntau nqes mus rau kev nkag thiab hom kua. Ib lub clamp- ntawm ultrasonic meter nruab yam tsis tau txiav cov yeeb nkab lossis nres ntws, uas yog qhov txaus nyiam ntawm lub ntsiab tseem ceeb - tab sis nws xav tau ib qho huv, zoo- cov kua dej thiab cov yeeb nkab zoo los nyeem kev ntseeg siab. Ib lub mag meter yuav tsum tau ib lub spool piece thiab kaw kom haum, tsis tau nws shrugs tawm cov khib nyiab thiab muab ib tug ruaj khov nyeem ntawv ntawm cov dej qias neeg los yog conductive txheej txheem. Yog tias cov kua ua tau thiab nqa cov khoom khib nyiab, lub mag meter feem ntau yeej nyob ntev - lub sij hawm ruaj khov; Yog tias koj tsis tuaj yeem ua txhaum txoj kab lossis cov kua dej huv, ultrasonic tsim nyog muab piv. Peb npog kev lag luam- tawm hauv qhov tob ntxiv hauvultrasonic thiab electromagnetic flowmeter.
Yuav Ua Li Cas Xaiv Txoj Cai Electromagnetic Flowmeter?
Qhov ntau ntawm cov hauv qab no koj tuaj yeem muab tau, qhov ze dua qhov kev pom zoo sib phim koj cov txheej txheem es tsis yog koj cov yeeb nkab loj xwb. Txhua yam khoom muaj tshwm sim vim nws hloov qhov kev teeb tsa:
- Kua npe thiab muaj pes tsawg leeg - drives liner thiab electrode khoom.
- Yam tsawg kawg nkaus conductivity - paub meej tias lub tshuab txawm ua haujlwm.
- Cov yeeb nkab loj thiab cov khoom siv - teeb tsa lub 'meter' loj thiab txoj hauv av.
- Yam tsawg kawg nkaus, ib txwm, thiab qhov siab tshaj plaws ntws - qhov loj me ntawm qhov ntsuas rau qhov tseeb, tsis yog kab xwb.
- Kub thiab siab - khi lub liner thiab gasket xaiv.
- Khoom, npuas, txheej, los yog puas - cuam tshuam liner, electrodes, thiab mounting.
- Yuav tsum muaj qhov tseeb - cais tus qauv los ntawm tus nqi them nqi.
- Muaj cov yeeb nkab ncaj ntev - txiav txim siab seb koj txoj hauj lwm puas tau.
- Kev sib txuas hom - flange, wafer, threaded, huv clamp, los yog ntxig.
- Tso zis teeb liab - 4–20 mA, mem tes, RS485 Modbus, HART, los yog relay.
- Fais fab mov - mains, low-voltage, los yog roj teeb.
- Ib puag ncig - IP ntsuam xyuas, tej thaj chaw deb zaub, tawg- pov thawj, los yog kev tso cai huv.
Rau ib qho kev qhia taug kev, saib peb cov ntawv sau rau ntawmCov ntsiab lus tseem ceeb rau xaiv ib qho electromagnetic flowmeter. Thaum koj npaj tau, koj ua tauxa koj cov ntaub ntawv thov rau pebthiab peb yuav phim tus qauv thiab kev teeb tsa rau cov xwm txheej saum toj no.
Kev daws teeb meem: Cov tsos mob, Tej yam yuav tshwm sim, kuaj ua ntej
| Cov tsos mob | Feem ntau yuav ua rau | Tshawb xyuas ua ntej |
|---|---|---|
| Tsis ruaj khov / hloov pauv kev nyeem ntawv | Cov av tsis zoo, huab cua npuas, tsis tshua muaj hluav taws xob, kev co, hluav taws xob cuam tshuam, nruab ze ze rau lub twj tso kua mis lossis lub valve | Grounding, ces paub meej tias cov yeeb nkab yog tag nrho thiab electrodes yog wetted |
| Tsis muaj cov teeb liab ntws | Cov yeeb nkab khoob, tsis yog -cov kua ua kua, kev ua haujlwm tsis raug, cov khoom xa tawm tsis raug | Paub meej tias muaj cov dej ntws tiag tiag, tom qab ntawd conductivity, lub zog, thiab xaim |
| Nyeem ntawv siab lossis qis dhau | Cov yeeb nkab tsis raug- txoj kab uas hla, qhov tsis ncaj ncees lawm, ib nrab cov yeeb nkab puv, electrode txheej, tsis zoo mounting txoj hauj lwm | Txheeb xyuas qhov kab thiab qhov sib txawv ntawm qhov ntsuas ntsuas |
| Hloov maj mam dhau lub lis piam/hli | Electrode txheej, liner hnav los yog puas, hloov cov kua conductivity | Tshawb xyuas electrodes rau buildup; tshuaj xyuas cov kab mob liner |
Yog tias koj tab tom nrhiav kev ua txhaum tsis tu ncua, peb cov lus qhia raufeem ntau electromagnetic flowmeter faults thiab kev kho mobtaug kev los ntawm txhua rooj plaub hauv kev txiav txim.
FAQ Txog Electromagnetic Flowmeters
Dab tsi yog qhov tsawg kawg nkaus conductivity rau electromagnetic flowmeter?
Feem ntau tus qauv mag metres xav tau ob peb µS / cm, thiab cov dej zoo tib yam zaum saum qhov ntawd. Daim duab qhia tseeb yog tsim los ntawm tus qauv, yog li nyeem cov ntaub ntawv thiab tawm cov npoo yog tias koj cov kua demineralized, condensate, los yog lwm yam qis -conductivity.
Ntev npaum li cas cov yeeb nkab mag meter xav tau?
Nws nyob ntawm qhov kev cuam tshuam sab sauv thiab tus qauv, yog li ua raws li cov chaw tsim khoom tau hais txog sab saud thiab qis qis ncaj nraim -khiav cov cai es tsis yog ib txoj cai ntawm tus ntiv tes xoo. Khaws lub 'meter' kom deb ntawm cov twj, li qub, thiab lub luj tshib qhov twg koj tuaj yeem ua tau.
Kuv puas xav tau rings grounding?
Ntawm cov yeeb nkab hlau conductive, cov yeeb nkab uas tsis muaj kab nyob ib sab tuaj yeem muab txoj hauv av. Ntawm cov yas, kab, los yog cov yeeb nkab insulated koj yuav luag ib txwm xav tau cov nplhaib hauv av lossis cov electrodes hauv av kom cov kua hluav taws xob xa mus rau lub ntsuas.
Lub mag meter puas tuaj yeem ua haujlwm ntawm cov kav dej ib nrab?
Tus qauv mag meter tsis tuaj yeem. Cov electrodes yuav tsum tau wetted thiab lub bore yuav tsum puv; ib nrab filling ua rau tsis ruaj khov los yog nyeem tsis raug. Ib nrab kab tag nrho xav tau ib lub 'meter' tshwj xeeb tsim rau tus mob ntawd.
Kuv yuav xaiv lub liner twg rau kuv cov kua?
Sib piv cov liner rau chemistry, kub, siab, thiab abrasion: roj hmab rau cov dej thiab me slurry, polyurethane rau abrasive slurry, thiab PTFE los yog PFA rau aggressive chemicals thiab tu lub luag hauj lwm. Txheeb xyuas qhov kev xaiv zaum kawg tiv thaiv daim ntawv qhia kev sib raug zoo.
Dab tsi yog qhov txawv ntawm qhov ntxig thiab inline mag meters?
Ibinline (tag nrho -bore) mag meternqa tag nrho ntws thiab yog tus qauv, qhov tseeb tshaj plaws xaiv. Ibinsertion- hom mag meterntsuas qhov nrawm hauv zos los ntawm kev sojntsuam; nws yog pheej yig dua kom haum rau cov kav dej loj tab sis feem ntau tsis tshua muaj tseeb thiab ntau qhov rhiab rau ntws profile.
Lub tshuab electromagnetic flowmeter tuaj yeem ntsuas roj, roj, lossis chav dej?
Tsis yog. Cov roj feem ntau tsis yog -conductive, thiab roj, cua, thiab chav ua haujlwm tsis muaj qhov cuam tshuam. Rau cov no, saib turbine, Coriolis, oval iav, vortex, lossis ultrasonic technologies nyob ntawm cov kua dej.
Puas yog electromagnetic flowmeter zoo rau cov dej khib nyiab?
Yog - nws yog ib qho kev xaiv ntau tshaj plaws, vim tias nws tsis muaj qhov txav mus los thiab ua rau cov kua dej tsis zoo nrog cov khoom tawg. Tag nrho -pipe mounting, grounding, thiab txoj cai liner tseem txiav txim siab seb nws ua tau zoo npaum li cas.
Dab tsi cuam tshuam rau mag meter raug?
Hauv av, conductivity nyob ze ntawm qhov txwv, ib feem ntawm cov yeeb nkab, electrode txheej, cua npuas, cov yeeb nkab tsis ncaj ncees lawm - txoj kab uas hla, txoj haujlwm tsis zoo, thiab cov khoom siv tsis zoo yog qhov ua txhaum ib txwm.
Ntsiab Cai
Lub ntsuas hluav taws xob sib nqus induces ib qho hluav taws xob nyob rau hauv cov kua ua kua (Faraday txoj cai), nyeem nws los ntawm electrodes, thiab converts tshaj tawm mus rau volumetric flow siv lub paub bore cheeb tsam. Rau cov dej, dej khib nyiab, slurry, thiab ntau cov tshuaj lom neeg nws yog ib qho tsawg -kev tu, ceev- ywj siab workhorse - tab sis nws tsis tuaj yeem ntsuas roj, nkev, roj, lossis tsis yog - cov kua ua kua, thiab nws nyob ntawm cov yeeb nkab tag nrho, suab hauv av, thiab txoj cai liner thiab electrodes.
Txiav txim siab xaiv los ntawm cov kua ua ntej (conductivity thiab chemistry), tom qab ntawd cov yeeb nkab thiab ntws ntau, ces qhov kev sib txuas, cov zis, thiab ib puag ncig. Nqa cov ntsiab lus mus rau koj tus neeg muag khoom thiab cov lus pom zoo yuav haum rau cov txheej txheem, tsis yog cov yeeb nkab txoj kab uas hla.
Sau thiab tshuaj xyuas los ntawm FlowT's flow- pab pawg neeg siv cuab yeej cuab tam, raws li kev teeb tsa kev lag luam thiab kev xaiv xaiv. Cov khoom siv, qhov tseeb, kev coj ua, thiab cov khoom tsim tawm txawv raws li tus qauv thiab kev ua haujlwm - lees paub rau daim ntawv teev cov khoom thiab koj daim ntawv thov.
