Xaiv lub ntsuas dej khib nyiab yog qhov kev txiav txim siab, tsis yog qhov kev txiav txim siab ntsuas. Qhov kev xaiv tsis ncaj ncees yuav tshwm sim tom qab raws li kev nyeem ntawv nrawm, nquag ntxuav, tsis ua raws li tus lej, lossis ib lub ntsuas ntsuas uas txhaws hauv kev pabcuam. Qhov kev xaiv zoo pib nrog ib lo lus nug uas feem ntau cov neeg yuav khoom hla:Puas yog txoj kab tag nrho, cov yeeb nkab uas muaj zog, lossis nws puas yog lub ntiajteb txawj nqus ntws hauv cov yeeb nkab ib nrab lossis qhib channel?Ib lo lus teb no txwv ib nrab ntawm cov kev xaiv ua ntej koj puas tau saib daim ntawv teev cov ntaub ntawv.
Hauv cov ntsiab lus dav dav, amagnetic flow meteryog lub neej ntawd rau tag nrho cov kav dej nqa cov dej khib nyiab, ib qho
ultrasonic flow meterkhwv tau nws qhov chaw thaum koj xav tau ib qho kev daws teeb meem uas tsis yog -invasive lossis retrofit, thiab qhib channel system yog txoj hauv kev raug rau cov kav dej nqus dej thiab cov kav dej. Phau ntawv qhia no piav qhia txog txhua hom dej khib nyiab, qhov twg nws ua haujlwm, qhov twg nws ua tsis tiav, thiab yuav ua li cas kom haum rau cov dej phwj tuaj, sludge, kho cov dej khib nyiab, cov dej khib nyiab, thiab biogas.
Phau ntawv qhia no yog sau rau engineers thiab buyers specifications txaus ntsuas nyob rau hauv lub nroog thiab industrial wastewater. Kho qhov ntsuas qhov ntsuas hauv qab no raws li cov ntsiab lus pib, thiab lees paub lawv tawm tsam cov ntaub ntawv tsim khoom thiab cov qauv siv hauv zos rau koj qhov project.
Dab tsi yog Wastewater Flow Meter?
Lub ntsuas dej khib nyiab ntsuas tus nqi ntws lossis tag nrho cov dej khib nyiab txav los ntawm cov yeeb nkab, channel, lossis txheej txheem kho. Cov dej khib nyiab hnyav dua qhov ntsuas dej huv vim tias nws nqa cov khoom khib nyiab, sludge, grit, roj, tshuaj, thiab huab cua, thiab vim tias cov dej ntws yuav raug thawb rau hauv ib feem ntawm cov nroj tsuag thiab lub ntiajteb txawj nqus- pub rau lwm qhov.
Yog li ntawd, lub ntsuas dej dav dav tsis tshua muaj sia nyob cov kev pabcuam dej khib nyiab. Lub 'meter' yuav tsum phim cov kua dej, cov yeeb nkab lossis cov kab mob channel, qhov chaw teeb tsa, qhov tseeb koj xav tau tiag tiag, thiab kev saib xyuas koj txaus siab ua. Tau txais tsib txoj cai thiab yuav luag txhua lub 'meter' ua haujlwm zoo; tau ib tug tsis ncaj ncees lawm thiab txawm ib tug kim meter underperforms.
Kev sib piv ceev ntawm Wastewater Flow Meter Hom
Siv qhov no ua cov npe luv, tom qab ntawd lees paub tawm tsam cov ncauj lus kom ntxaws hauv qab no. Cov kab "tsis txhob thaum" feem ntau muaj txiaj ntsig ntau dua li "zoo tshaj rau" kab, vim nws tshem tawm cov kev xaiv tsis raug sai.
| Meter hom | Zoo tshaj rau | Zam thaum | Hom kev teeb tsa |
|---|---|---|---|
| Sib nqus (electromagnetic) | Tag nrho cov kav dej nrog cov dej phwj tuaj, sludge, lossis effluent | Cov yeeb nkab khiav ib nrab, lossis cov kua dej tsis yog - conductive | Inline flanged; ntxig rau cov kav dej loj |
| Ultrasonic transit - sij hawm | Kho cov kua dej huv thiab huv si; rov kho dua | Cov khoom hnyav hnyav, sludge, lossis cua nkag | Inline los yog clamp- rau, tag nrho cov yeeb nkab |
| Ultrasonic Doppler muaj | Cov dej qias neeg, sludge, ntws nrog cov khoom los yog npuas | Cov kua dej huv heev uas tsis muaj dab tsi cuam tshuam los ntawm | Clamp-on lossis insertion, tag nrho cov yeeb nkab |
| Qhib channel (weir / flume + qib) | Gravity sewers, channels, ib nrab ntim cov kav dej | Pressurized tag nrho cov kav dej; tsis ruaj tsis khov mus kom ze | Thawj tus qauv ntxiv rau qib sensor |
| Vortex | Chav, roj, qee qhov dej huv huv | Raw dej phwj los yog sludge nrog cov khib nyiab | Hauv kab, ncaj- khiav nrawm |
| Turbine | Cov dej huv huv | Txhua yam nrog fibers, grit, los yog khib nyiab | Inline, xav kom pom cov dej ntws |
| Thermal huab hwm coj | Biogas los ntawm digesters (gas, tsis yog kua) | Cov dej khib nyiab txhua yam | Ntxig los yog inline, roj kab |
Rau feem ntau ntawm cov ntsiab lus kho dej khib nyiab, qhov kev sib tw tiag tiag yog sib nqus, ultrasonic, thiab qhib channel meters. Cov seem yog cov xwm txheej tshwj xeeb.
Kaw Yeeb vs Qhib Channel: Thawj Qhov Kev Txiav Txim
Ua ntej muab cov thev naus laus zis sib piv, txiav txim siab seb koj nyob hauv lub ntiaj teb twg, vim lawv tsis tshua sib tshooj.
Puv, pressurized yeeb nkab.Lub bore nyob twj ywm tag nrho ntawm tag nrho cov ntws, nrog rau tsawg txaus thaum hmo ntuj. Ntawm no koj tuaj yeem siv lub ntsuas hluav taws xob sib nqus lossis ib qho inline lossis clamp- ntawm ultrasonic ntsuas. Qhov no yog qhov tseeb tshaj plaws thiab kev ntseeg siab nyob.
Lub ntiajteb txawj nqus los yog ib nrab ntim cov yeeb nkab thiab qhib raws.Cov dej saum npoo yog qhib rau huab cua, lossis cov yeeb nkab tsuas yog khiav ib feem puv nkaus xwb. Tus qauv mag meter yog cov cuab yeej tsis raug: nrog rau seem sab saum toj nws nyeem qis lossis poob tawm tag nrho. Qhov no yog thaj chaw qhib channel, lossis tshwj xeeb ib nrab - puv - yeeb nkab meter.
Engineer daim ntawv:Ib txoj kab uas puv ntawm qhov siab kawg nkaus tab sis tsuas yog ib nrab puv ntawm 3 teev sawv ntxov yog ib feem ntawm kab. Loj qhov kev txiav txim nyob ib ncig ntawm cov ntaub ntawv phem tshaj, tsis yog lub npe. Yog hais tias lub bore tsis tas li tag nrho, tsis txhob kho tus qauv sib nqus meter raws li lub neej ntawd.
Sib Nqus Flow Meters rau cov dej khib nyiab
Magnetic flow meter (mag metres lossis electromagnetic flow meter) yog qhov ua haujlwm ntawm tag nrho - ntsuas dej khib nyiab. Lawv tsis muaj qhov txav mus los thiab tsis muaj kev cuam tshuam hauv qhov bore, yog li lawv zam cov khib nyiab uas yuav ua kom puas lub tshuab ntsuas.
Lawv ua haujlwm li cas
Ib lub mag meter siv ib qho chaw sib nqus thoob plaws hauv cov yeeb nkab. Thaum cov kua hluav taws xob txav mus los ntawm qhov chaw ntawd nws tsim qhov voltage proportional to velocity, uas lub transmitter hloov mus rau tus nqi ntws. Lub hauv paus ntsiab lus yog txhais nyob rau hauv tus txheej txheem thoob ntiaj tebISO 20456: 2017 Ntawv pov thawj, uas yog siv tshwj xeeb rau electromagnetic flowmeters ntsuas cov kua conductive nyob rau hauv ib tug kaw conduit khiav puv - thiab uas qhia meej tsis npog qhib raws los yog cov kav dej khiav ib nrab. Ob qho xwm txheej, kev coj ua thiab tag nrho, yog tag nrho zaj dab neeg ntawm thaum lub mag meter haum.
Siv Nws Thaum twg / Zam Thaum
- Siv nws thaum:Cov yeeb nkab yog tag nrho, cov kua yog conductive, thiab koj xav tau kev saib xyuas qis thiab qhov raug siab (zoo mag meters tuav roughly ± 0.2% rau ± 0.5% ntawm kev nyeem ntawv).
- Zam nws thaum:cov kab khiav tag nrho, los yog cov kua dej tsis zoo (condensate me ntsis condensate, qee qhov siab -purity yaug dej, los yog tej yam hnyav- raws kwj).
Hom muaj zog haum muaj xws licov dej tsis huv thiab sludge kab, kho effluent paug, cog inlet thiab qhov hluav taws xob xyuas, thiab conductive chemical dosing kab. Ntawm tag nrho DN200 sludge xa rov qab kab, piv txwv li, mag meter feem ntau yog qhov kev xaiv ua ntej vim tias tsis muaj dab tsi hauv qhov bore los txhaws.
Kev coj ua thiab cov khoom siv
Standard mag meters xav tau yam tsawg kawg nkaus conductivity, feem ntau nyob ib ncig ntawm 5 µS / cm, tab sis tsawg -conductivity versions muaj. Feem ntau cov dej khib nyiab hauv nroog thiab ntau cov dej khib nyiab tshem tawm qhov no yooj yim, tab sis tsis txhob xav tias nws rau cov dej huv lossis cov tshuaj lom neeg tsis zoo - xyuas qhov tsawg kawg nkaus conductivity ntawm cov ntaub ntawv. Qhov tseem ceeb sib npaug yog txuam cov wetted qhov chaw rau cov kua: lubcov ntaub ntawv liner(PTFE, PFA, tawv roj hmab, polyurethane) thiab cov khoom siv electrode (316L, Hastelloy, tantalum, titanium) txiav txim seb lub meter shrugs tawm ntawm chemistry los yog corrodes nyob rau hauv ib lub caij.
Installation Points Qhov Tseem Ceeb
- Khaws cov yeeb nkab kom puv.Mount nyob rau hauv qis taw tes los yog nce ceg, los yog downstream ntawm ib tug txaus- tswj feature, yog li huab cua tsis hnab tshos ntawm lub electrodes.
- Hauv av kom zoo.Lub mag meter ntsuas millivolt- theem teeb liab, yog li lub hauv av tsis zoo ntab qhov siv thiab ua suab nrov lossis tsis ruaj khov. Qhov no yog qhov teeb meem uas yuav tsum tau zam tshaj plaws; saibvim li cas grounding tseem ceebrau cov ntaub ntawv xov xwm.
- hwm ncaj- khiav.Npaj rau cov chaw tsim khoom daim duab, feem ntau nyob ib ncig ntawm 5 mus rau 10 yeeb nkab diameters upstream thiab 3 mus rau 5 downstream.
- Orient cov electrodes kom raug.Cov hluav taws xob yuav tsum zaum ntawm txoj kab rov tav kom daws cov khib nyiab thiab cov pa roj tsis txhob co los yog nthuav tawm lawv.
Rau cov kav dej loj heev qhov twg lub flanged spool yog impractical, ibinsertion-style magnetic metertuaj yeem yog tus nqi- siv tau zoo, nrog kev lag luam hauv qhov tseeb.
Ultrasonic Wastewater Flow Meters
Ultrasonic meters ntsuas ntws nrog suab. Ib txhia yog inline; lwm tus clamp mus rau sab nraud ntawm cov yeeb nkab, uas ua rau lawv pom tseeb kev xaiv rau retrofits, kev soj ntsuam ib ntus, thiab txhua txoj kab uas koj tsis tuaj yeem txiav lossis kaw. Lub ntes yog tias ultrasonic kev ua tau zoo nyob ntawm kev siv tshuab zoo thiab kev teeb tsa huv.
Transit-Lub Sijhawm Ultrasonic
Kev thauj mus los- lub sijhawm ntsuas ntsuas xa cov cim nrog thiab tawm tsam qhov ntws thiab suav qhov nrawm los ntawm qhov sib txawv me me hauv lub sijhawm mus ncig. Covkev mus los -time methodua haujlwm zoo tshaj plaws hauv cov kua dej huv huv - kho cov dej los yog cov kua dej uas muaj cov khib nyiab tsawg - thiab poob qhov tseeb lossis teeb liab raws li cov khoom raug tshem tawm thiab cov cua nkag mus, vim tias lawv tawg lub suab nrov.
Doppler Ultrasonic Cov
Doppler meters ua haujlwm tsis zoo: lawv cia siab rau cov khoom lossis cov npuas hauv cov kua los cuam tshuam cov teeb liab, thiab ntsuas qhov zaus hloov. ADoppler meterYog li ntawd, haum rau cov dej khib nyiab, cov dej phwj nyoos, thiab cov sludge nrog cov khib nyiab pov tseg. Lub flip sab yog tiag tiag: cov dej huv huv tuaj yeem tshaib plab Doppler meter ntawm cov reflectors thiab muab kev nyeem tsis ruaj khov.
Clamp-Nyob ntawm Kev Tshawb Fawb
Clamp- ntawm kev thauj mus los- lub sijhawm txaus nyiam vim tsis muaj dab tsi kov cov kua dej, tab sis cov yeeb nkab phab ntsa ua ib feem ntawm qhov ntsuas.Qhov tseeb sensor mounting- yeeb nkab khoom, phab ntsa thickness, liner condition, coupling, thiab spacing - tsav qhov tshwm sim. Field clamp- ntawm qhov tseeb yog feem ntau nyob rau hauv ± 1% mus rau ± 2% ntau thaum cov yeeb nkab yog suab.
Engineer daim ntawv:Ua ntej koj tso siab rau ib lub clamp- ntawm kev nyeem ntawv ntawm cov qub cam khwb cia- hlau los yog cov kav dej hnyav hnyav, xyuas seb puas muaj cov khoom siv sab hauv lossis cov kab degraded. Ob qho tib si tawg lub nqaj thiab ntsiag to degrade qhov tseeb txawm tias lub 'meter' qhia tau tus lej.
Siv Nws Thaum twg / Zam Thaum
- Siv nws thaum:koj tsis tuaj yeem txiav lossis nres txoj kab, koj xav tau daim ntawv ntsuam xyuas nqa tau, lossis tsis yog -kev ntsuas kev tiv tauj yuav tsum tau - thiab cov kua dej sib tw nrog cov thev naus laus zis uas tau xaiv (kev thauj mus los - lub sijhawm huv, Doppler rau qias neeg).
- Zam nws thaum:cov yeeb nkab phab ntsa yog qhov tsis zoo rau clamp- rau, lossis koj tau thov kev thauj mus los - lub sij hawm mus rau hnyav sludge (ib qho classic tsis sib haum nyob rau hauv qhov yuam kev hauv qab no).
Qhib Channel Flow Meters
Tsis yog tag nrho cov dej khib nyiab ntws hauv cov kav dej uas muaj zog. Hauv cov kav dej nqus dej, cov dej ntws, cov kwj dej, thiab ntau cov nroj tsuag, cov dej ntws nrog qhov chaw dawb. Tsis siv tag nrho - yeeb nkab meter; koj ntsuas qib tawm tsam tus qauv paub xwb.
Weirs thiab Flumes
Lub kaw lus qhib siv cov qauv tseem ceeb - ib lub weir lossis flume - los tsim kom muaj kev sib raug zoo ntawm qib dej thiab tus nqi ntws. Lub US Bureau of Reclamation'sPhau ntawv ntsuas dejtseem yog tus qauv siv rau cov duab geometry thiab lub taub hau - tawm qhov sib npaug tom qab cov khoom siv no.
| Yam | Weir | Flume |
|---|---|---|
| Zoo tshaj rau | Cov dej huv huv, yooj yim qis - nqi chaw | Cov dej khib nyiab nqa cov khoom khib nyiab |
| Khoom tuav | Sediment thiab khib nyiab tuaj yeem tsim tom qab crest | Tus kheej- ntxuav, vim tias ntws nrawm los ntawm caj pas |
| poob taub hau | Siab dua | qis |
| Qhov xav tau tseem ceeb | Dawb, ventilated nappe; huv si channel | Free flow, tsis submerged downstream |
Hauv kev xyaum, flumes (xws li Parshall flume) feem ntau yog nyiam rau cov dej phwj tuaj thiab lwm yam khoom khib nyiab -cov kabmob ntws raws li tus kheej no- vim li cas kev ntxuav, thaum cov weirs ua kom zoo dua qub, qis dua - cov peev nyiaj raws - yog muab cov dej ntws ntws tawm kom tsis txhob muaj cov khib nyiab.
Qib Sensor
Qhov thib ob ib nrab ntawm qhov qhib channel yog qhovqib sensor- ultrasonic, radar, lossis submersible siab - uas nyeem cov dej ntawm qhov taw tes. Lub transmitter ces siv lub weir los yog flume sib npaug los hloov qib mus rau hauv ntws. Kev tso kawm sensor tsis tuaj yeem sib tham tau: nws yuav tsum zaum ntawm qhov chaw ntws mus kom raug (feem ntau yog teeb tsa ntau lub taub hau siab tshaj plaws), tawm ntawm kev kub ntxhov thiab ua npuas ncauj, lossis kev hloov pauv tsis raug txawm tias cov qauv zoo meej.
Kev txiav txim siab txog kev saib xyuas
Qhib channel qhov tseeb nyob ntawm lub cev muaj zog ntau dua li ntawm cov khoom siv hluav taws xob. Saib xyuas cov av nkos uas hloov pauv cov channel geometry, cov khoom khib nyiab nyob ntawm lub weir crest, ua npuas ncauj thiab turbulence corrupting qib nyeem ntawv, downstream submergence uas invalidates lub free - flow assumption, thiab puas los yog kho cov qauv. Ntawm cov dej phwj nyoos thiab cov dej cua daj cua dub, teem caij tshuaj xyuas tsis tu ncua ntau dua li tos tus lej saib tsis raug, vim tias cov qauv fouled tuaj yeem nyeem plausibly thaum raug tshem tawm.
Lwm hom dej khib nyiab Flow Meter
Sib nqus, ultrasonic, thiab qhib channel ntsuas npog feem ntau siv. Ob peb lwm yam tshwm sim hauv cov ces kaum ntawm cov nroj tsuag.
Vortex Flow Meters
Vortex meters ntes cov vortices los tom qab lub cev bluff thiab muaj nyob rau ntawm chav, roj, thiab cov dej huv huv. Lawv feem ntau tsis yog thawj qhov kev xaiv rau cov dej phwj nyoos lossis sludge, tab sisvortex flow meterstuaj yeem haum cov kab siv hluav taws xob sib xws uas cov kua dej huv thiab ruaj khov.
Turbine Flow Meters
Turbine meters tig lub rotor thiab muab qhov tseeb ntawm cov kua dej huv, tab sis cov khoom txav mus los yog lub luag haujlwm hauv kev pabcuam qias neeg: fibers, grit, thiab khib nyiab foul lossis hnav cov kabmob. Khaws ciaturbine flow metersrau cov dej huv huv, thiab khaws lawv tawm ntawm cov dej phwj tuaj thiab sludge.
Thermal Mass Flow Meters rau Biogas
Anaerobic digesters tsim biogas, uas yog roj- teeb meem ntws, tsis yog kua.Thermal huab cua flowmeterntsuas cov pa loj ntws ncaj qha thiab ua tau zoo rau kev saib xyuas biogas - tab sis cov roj digester yog ntub dej, tuaj yeem nqa hydrogen sulfide (H₂S), thiab sib txawv hauv cov ntsiab lus methane, yog li cov khoom siv sib xws, kev tuav dej noo, thiab lub siab thiab qhov kub thiab txias tseem ceeb npaum li txoj cai ntsuas.
Qhov zoo tshaj plaws Wastewater Flow Meter los ntawm Daim Ntawv Thov
Cov neeg nyeem feem ntau tuaj txog nrog cov kab tshwj xeeb hauv siab, tsis yog cov lus nug dav dav. Ntawm no yog ib daim ntawv qhia tswv yim. Kho nws raws li qhov pib taw qhia, tom qab ntawd paub meej nrog cov kua dej thiab cov kev kuaj xyuas ua ntej.
- Raw dej phwj inlet (tag nrho cov yeeb nkab):magnetic flow meter; Doppler ultrasonic rau qhov kev xaiv tsis yog -invasive.
- Sludge thiab recirculation kab (tag nrho, conductive):magnetic flow meter yog lub neej ntawd; insert mag rau loj bores.
- Kho effluent paug (cleaner, tag nrho cov yeeb nkab):sib nqus, los yog kev thauj mus los - lub sij hawm ultrasonic qhov retrofit tseem ceeb.
- Industrial Wastewater nrog cov tshuaj:sib nqus nrog ua tib zoo sib xyaw liner thiab electrodes; xyuas cov conductivity thiab compatibility ua ntej.
- Lub ntiajteb txawj nqus channel los yog cov kav dej ib nrab:qhib channel system nrog flume thiab qib sensor.
- Cov yeeb nkab uas twb muaj lawm koj tsis tuaj yeem txiav:clamp- ntawm ultrasonic, kev thauj mus los- sij hawm los yog Doppler nyob ntawm seb qhov dej qias neeg li cas.
- Biogas los ntawm digester:thermal mass flow meter, teev rau ntub dej, H₂S- bearing gas.
Yuav Ua Li Cas Xaiv Txoj Cai Wastewater Flow Meter?
Ua hauj lwm los ntawm cov no nyob rau hauv kev txiav txim. Txhua kauj ruam yuav tsum tsim ib qho kev txiav txim, tsis yog ib lub checkbox xwb.
Kauj Ruam 1: Cov yeeb nkab puv lossis qhib Channel?
Yog hais tias lub bore yog ib txwm puv, ib tug sib nqus los yog inline ultrasonic meter nyob rau hauv kev ua si, nrog clamp- ntawm ultrasonic yog tias koj tsis tuaj yeem txiav txoj kab. Yog hais tias qhov ntws yog nqus, ib nrab sau, lossis hauv ib qho channel, mus rau qhov qhib channel. Qhov kev txiav txim siab no ib leeg tshem tawm qhov loj tshaj plaws ntawm cov meters tsis sib haum.
Kauj Ruam 2: Nyeem cov kua dej, Tom qab ntawd txiav txim siab
Txheeb xyuas cov khoom siv hluav taws xob, cov khoom khib nyiab thiab cov sludge cov ntsiab lus, grit thiab fibers, cua nkag mus, tshuaj lom neeg sib raug zoo, kub, siab, thiab ntws ntau - thiab tig txhua qhov ua haujlwm:
- Yogconductive thiab tag nrho → sib nqus yog qhov muaj zog default.
- YogCov khib nyiab hnyav lossis cov sludge thiab koj xav tau tsis yog -invasive → Doppler ultrasonic, tsis yog kev thauj mus los - sijhawm.
- Yoghuv effluent thiab retrofit → transit -time ultrasonic.
- YogTsawg conductivity (hauv qab qhov ntsuas qhov tsawg kawg nkaus) → tsis txhob yuam lub mag meter; rov xav txog technology.
Kauj Ruam 3: Txheeb xyuas qhov chaw teeb tsa
Txoj cai technology tseem ua tsis ncaj ncees lawm. Paub meej tias cov yeeb nkab loj thiab cov khoom siv, muaj kev khiav ncaj nraim, kab rov tav piv rau txoj kab ntsug ntsug, txawm tias cov yeeb nkab nyob twj ywm tag nrho, kev nkag mus rau kev pabcuam, kev vibration, sab hauv lossis sab nraum zoov thiab dej nyab, muaj zog, thiab cov khoom xav tau. Rau clamp- ntawm ultrasonic, yeeb nkab- phab ntsa yog qhov txiav txim siab; rau sib nqus, grounding thiab tag nrho - yeeb nkab tej yam kev mob yog txiav txim.
Kauj Ruam 4: Txheeb xyuas qhov tseeb, qhov tso zis, thiab tus nqi ntawm lub neej
Match raug rau lub hom phiaj. Kev soj ntsuam cov txheej txheem zam qhov nruab nrab spec; kev them nqi, kev tshaj tawm kev tswj hwm, thiab kev tswj hwm kev noj tshuaj xav tau ntau dua qhov tseeb thiab ntev - lub sijhawm ruaj khov. Rau cov dej ntws tawm uas pub tus lej tso cai, cov tswj hwm xav kom cov khoom siv xaiv, teeb tsa, thiab ntsuas kom xa qhov tseeb raws li cov cuab yeej ntawd - EPA lub ntsiab lus ntawmflow ntsuas ntawm cov ntsiab lus tso tawmyog qhov siv tau zoo rau qhov kev ua raws li - kev ntsuas qib suav nrog. Cov kev cai hauv zos lossis qhov project specifications yuav txhais tau qhov tseeb uas koj yuav tsum tau ua.
Tom qab ntawd ntsuas kev saib xyuas: ib lub ntsuas pheej yig dua uas clogs, drifts, los yog xav tau kev tu kom nquag plias feem ntau raug nqi ntau dua thoob plaws hauv nws lub neej tshaj li ib 'meter' xaiv rau cov xwm txheej. Cov kev xaiv tso zis ntau los piav qhia suav nrog 4-20 mA, mem tes, RS-485 / Modbus, HART, cov ntaub ntawv kaw lus, thiab lub tswb.
Feem ntau yuam kev thaum xaiv lub ntsuas dej khib nyiab
Siv lub ntsuas dej huv huv -Dej Meter ntawm cov dej khib nyiab
Mechanical meters nrog txav qhov chaw clog thiab hnav ceev hauv cov dej phwj tuaj thiab sludge, ua rau drift thiab downtime. Muab lub 'meter' rau hauv av, tsis yog tus nqi qis tshaj.
Tsis quav ntsej seb cov yeeb nkab puas puv
Ib lub mag meter ntawm ib feem - cov yeeb nkab puv nyeem qis lossis tsis zoo vim qhov ntsuas tus ntoo khaub lig - ntu tsis yog qhov ntsuas qhov xav tau. Hauv lub ntiajteb txawj nqus, cov lus teb yog qhib channel ntsuas, tsis yog "zoo dua" puv -pipe meter.
Muab Transit-Lub Sijhawm Ultrasonic rau Hnyav Sludge
Kev mus los - sij hawm xav tau txoj hauv kev huv si. Cov khib nyiab hnyav thiab huab cua tawg lub teeb liab, yog li kev nyeem ntawv wanders lossis ploj mus. Siv Doppler rau cov kua dej ntawd, thiab cov tsos mob feem ntau pom tseeb.
Tsom ntsoov rau tus nqi yuav khoom xwb
Ib lub 'meter' uas ua rau kev tu txhua hli, ua rau lub sijhawm poob qis, lossis tsim cov lej uas koj tsis tuaj yeem tiv thaiv yog qhov kev xaiv kim, txawm li cas los xij ntawm daim ntawv them nqi hais. Muab kev saib xyuas thiab kev ntseeg siab rau hauv qhov kev txiav txim los ntawm qhov pib.
Tsis nco qab tshuaj Compatibility
Cov dej khib nyiab tuaj yeem ua rau corrosive. Paub meej tias kev sib raug zoo ntawm txhua qhov wetted ib feem - liner, electrodes, seals, vaj tse - ua ntej yuav, los yog peev nyiaj rau kev hloov thaum ntxov.
Dab tsi cuam tshuam rau Wastewater Flow Meter?
Cov neeg yuav khoom feem ntau nug txog tus nqi ua ntej piav qhia txog daim ntawv thov, tab sis tus nqi yog tsav los ntawm daim ntawv thov. Ntau dua li cov lej cim uas yuav tsis muaj txiaj ntsig yam tsis muaj cov ntsiab lus, ntawm no yog qhov ua tau txav tus nqi. Cov nqi them rov qabultrasonic meter nqigeneralize zoo rau ntau hom:
- Cov yeeb nkab loj:loj -meter txoj kab uas hla raug nqi ntau dua, uas yog vim li cas qhov kev ntxig ntxig tsim muaj rau cov bores loj.
- Wetted cov ntaub ntawv:kab txawv liners thiab electrodes rau txhoj puab heev chemistry ntxiv nqi.
- Chav kawm raug thiab pom zoo:kev saib xyuas- qib raug, muaj kev phom sij- daim ntawv pov thawj cheeb tsam, thiab kev tiv thaiv siab ingress tag nrho cov nqi nce.
- Installation hom:clamp- ntawm zam yeeb nkab- txiav thiab downtime; inline tej zaum yuav xav tau kaw thiab kav dej.
- Outputs thiab kev sib txuas lus:digital protocols, logging, thiab tej thaj chaw deb saib xyuas ntxiv rau tag nrho.
- Lifecycle, tsis sticker:calibration, tu, thiab downtime ntau xyoo feem ntau tshaj tus nqi yuav khoom.
RFQ Checklist: Cov ntaub ntawv xa tuaj rau koj tus neeg muab khoom
Cov yeeb nkab loj ib leeg tsis txaus rau tus neeg xa khoom kom pom zoo rau lub 'meter'. Qhov ntau ntawm cov hauv qab no koj muab, qhov ze dua thawj qhov kev pom zoo yuav yog, thiab qis dua qhov kev pheej hmoo ntawm cov khoom tsis sib xws. Sau cov no ua ntej kojthov ib nqe lus:
- Cov dej khib nyiab: cov dej phwj nyoos, sludge, kho cov dej khib nyiab, cov dej khib nyiab, lossis biogas
- Cov yeeb nkab puv lossis qhib channel; pressurized los yog gravity
- Pipe txoj kab uas hla thiab cov khoom (thiab liner condition, rau clamp-on)
- Yam tsawg kawg nkaus, ib txwm, thiab siab kawg ntws tus nqi
- Kub thiab siab
- Conductivity, yog paub
- Khoom, sludge, fibers, roj, los yog npuas cov ntsiab lus
- Tshuaj muaj pes tsawg leeg thiab corrosiveness
- Yuav tsum tau muaj tseeb thiab yog vim li cas (txheej txheem, nqi, ua raws)
- Kev tsim tawm thiab kev sib txuas lus xav tau
- Lub zog muaj
- Kev ntsuas kev tiv thaiv lossis kev phom sij - cheeb tsam yuav tsum tau muaj
- Seb puas yog kaw tau rau installation
- Cov duab hauv chaw los yog kos duab, yog tias muaj
FAQ Txog Cov Dej Ncua Dej Flow Meter Hom
Q: Dab tsi yog qhov ntsuas dej ntau tshaj plaws rau cov dej khib nyiab?
A: Rau tag nrho - yeeb nkab conductive dej khib nyiab, magnetic flow meter yog feem ntau, vim tias lawv tsis muaj qhov txav thiab tuav cov khib nyiab. Rau lub ntiajteb txawj nqus channel los yog ib feem ntawm cov kav dej, qhib channel ntsuas yog cov lus teb ib txwm.
Q: Dab tsi flow meter yog qhov zoo tshaj plaws rau sludge?
A: Rau cov sludge conductive nyob rau hauv tag nrho cov yeeb nkab, ib tug magnetic flow meter feem ntau yog qhov zoo tshaj plaws kev xaiv. Qhov twg tsis yog - ntsuas qhov ntsuas yuav tsum tau thiab cov sludge nqa cov khib nyiab lossis npuas, Doppler ultrasonic meter yog lwm txoj hauv kev.
Q: Dab tsi yog qhov ntsuas qhov zoo tshaj plaws rau cov kav dej khib nyiab ib nrab?
A: Tus qauv sib nqus 'meter' tsis haum, vim tias nws suav tias yog qhov bore tag nrho. Siv lub kaw lus qhib, lossis ib lub 'meter' tshwj xeeb tsim rau cov kav dej ib nrab uas ntsuas ob theem thiab tshaj tawm.
Q: Puas tuaj yeem clamp- ntawm ultrasonic flow meter ua haujlwm ntawm PVC lossis cov kav hlau qub?
A: Ntawm lub suab PVC nws feem ntau ua haujlwm zoo, vim tias cov phab ntsa xa cov suab kom huv. Ntawm cov yeeb nkab hlau qub nrog cov nplais sab hauv lossis cov kab degraded, cov teeb liab tawg thiab qhov tseeb raug kev txom nyem, yog li cov yeeb nkab phab ntsa yuav tsum tau soj ntsuam ua ntej tso siab rau kev nyeem ntawv.
Q: Yuav ua li cas cov khib nyiab cuam tshuam qhov ntsuas qhov tseeb?
A: Cov khoom degrade kev thauj mus los- lub sijhawm ultrasonic los ntawm kev tawg ntawm cov nqaj, thaum lawv yuav tsum tau Doppler rov qab teeb liab. Cov ntsuas magnetic feem ntau tsis pom zoo rau cov khib nyiab ntev npaum li cov kua nyob twj ywm thiab cov bore nyob puv. Hauv cov channel qhib, kev daws teeb meem hloov cov channel geometry thiab kev tsis ncaj ncees ntawm qib - mus rau - ntws hloov.
Q: Puas yog turbine flow meters haum rau cov dej khib nyiab?
A: Feem ntau tsis muaj cov dej phwj nyoos los yog cov sludge, vim tias cov khoom txav mus los yog hnav. Lawv tuaj yeem ua haujlwm ntawm cov dej huv huv uas daim ntawv thov tso cai.
Q: Dab tsi yog qhov zoo tshaj plaws flow meter rau kev kho dej khib nyiab?
A: Tsis muaj ib lub meter zoo tshaj plaws rau tag nrho cov nroj tsuag. Sib nqus meters haum tag nrho - yeeb nkab dej phwj, sludge, thiab effluent; qhib channel systems tswj lub ntiajteb txawj nqus ntws; ultrasonic meters npog retrofit, ib ntus, thiab tsis yog -invasive cov ntsiab lus; Thermal huab hwm coj ntsuas ntsuas digester biogas.
Q: Lub ntsuas dej khib nyiab sib txawv li cas ntawm lub ntsuas dej ntws?
A: Lub ntsuas dej khib nyiab raug xaiv kom muaj sia nyob ntawm cov khib nyiab, sludge, npuas, tshuaj lom neeg, thiab kev teeb tsa nyuaj, nrog rau cov khoom siv thiab ntsuas txoj cai sib haum rau cov xwm txheej. Ib qho huv huv - ntsuas dej yuav tsis kav ntev lossis nyeem kom raug hauv kev pabcuam dej khib nyiab.
Xaus
Pib nrog cov yeeb nkab mob, vim tias kaw yeeb nkab tiv thaiv qhib channel txiav txim siab feem ntau ntawm qhov tshwm sim. Rau tag nrho, conductive kav, magnetic flow meters feem ntau yog qhov kev xaiv zoo tshaj plaws thiab raug. Rau cov kab koj tsis tuaj yeem txiav, ultrasonic meters ua haujlwm tau zoo thaum caij tsheb thauj mus los - lub sijhawm thiab Doppler raug muab tso ua ke kom raug rau qhov dej huv lossis qias neeg npaum li cas. Rau lub ntiajteb txawj nqus raws thiab cov kav dej ib nrab, ib qho qhib channel system nrog txoj cai flume thiab qib sensor yog txoj hauv kev kom raug.
Tom qab ntawd ntsia cov kua dej, qhov chaw teeb tsa, qhov tseeb koj lub hom phiaj xav tau, thiab kev saib xyuas koj tuaj yeem txhawb nqa. Sau cov ntaub ntawv, xa lawv nrog koj RFQ, thiab kev xaiv 'meter' ua ncaj nraim tsis yog kev kwv yees raws li tus nqi.
