Thaum cov engineers, chaw tswj xyuas, lossis cov neeg koom ua ke yuav tsum tau ntxiv kev ntsuas ntws mus rau cov kav dej uas twb muaj lawm, ob lub thev naus laus zis tuaj yeem tshwm sim dua:clamp- ntawm ultrasonic flow meterthiabInsertion electromagnetic flowmeter(tseem hu ua insertion mag meters). Ob leeg tau siv dav hauv dej -raws li tshuab. Ob leeg tuaj yeem tuav cov yeeb nkab loj loj. Thiab ob qho tib si feem ntau raug txiav txim siab rau cov haujlwm ua haujlwm rov qab uas txiav tag nrho - tho qhov ntsuas hauv kab yuav kim dhau lossis cuam tshuam ntau dhau.
Vim tias lawv tshwm sim los daws qhov teeb meem tib yam, lawv niaj hnub muab piv rau hauv HVAC chilled dej systems, condenser water loops, txheej txheem dej kab, thiab lub nroog los yog industrial water distribution networks. Tab sis feem ntau cov ntawv sib piv tsom ntau dhau ntawm ib lo lus nug - qhov twg yooj yim rau nruab? Qhov ntawd yog qhov uas ntau qhov kev xaiv yuam kev pib.
Tom qab ua haujlwm nrog ntau pua qhov kev ntsuas kev ntsuas thoob plaws HVAC, dej hauv nroog, thiab kev siv cov txheej txheem kev lag luam, peb tau pom cov qauv no ntau zaus: qhov yooj yim dua -rau- nruab meter tau xaiv, cov kua dej lossis cov yeeb nkab hloov mus rau qhov tsis ncaj ncees lawm, thiab qhov project xaus nrog cov ntaub ntawv tsis ntseeg lossis hloov pauv kim. Ib lub 'meter' uas yooj yim rau nruab tsis tuaj yeem yooj yim ntseeg.
Txoj kev xaiv yog nyob ntawm ntau ntau tshaj qhov yooj yim installation. Nws suav nrog cov kua dej, seb cov yeeb nkab puas tag nrho, cov kev xav tau ntawm cov khoom siv, cov khoom siv yeeb nkab thiab hnub nyoog, ncaj- khiav muaj, kev saib xyuas, kev ntsuas lub hom phiaj, thiab seb qhov taw tes yog ib ntus lossis ruaj khov.
Nco tseg:Kab lus no feem ntau tham txogKev thauj mus los- lub sijhawm clamp- ntawm ultrasonic ntsuassiv rau hauv daim ntawv thov ua kua huv. Doppler-hom clamp- ntawm cov meters, uas yog tsim los rau cov kua nrog cov khoom los yog npuas, ua raws cov kev xaiv sib txawv. Yog xav paub ntxiv txog qhov sib txawv, saib peb tsab xov xwm ntawmYuav ua li cas ultrasonic flowmeter ua haujlwm.
Dab tsi yog Clamp- Ntawm Ultrasonic Flow Meter?
A clamp- ntawm ultrasonic flow meteryog ib yam khoom uas tsis yog -invasive flow measurement device uas ntsuas cov kua ntws tawm ntawm sab nraum cov yeeb nkab. Es tsis txhob txiav rau hauv kab lossis tso cov sensors hauv kev sib cuag nrog cov kua dej, nws siv ultrasonic transducers clamped rau cov yeeb nkab sab nrauv.
Hauv cov ntawv thov ua kua huv, clamp- ntawm ultrasonic ntsuas siv lubkev mus los -lub sij hawm txoj cai. Lub 'meter' xa ultrasonic signals ob qho tib si nrog thiab tawm tsam cov kev taw qhia ntws los ntawm cov yeeb nkab phab ntsa thiab cov kua dej. Vim hais tias lub suab mus nrawm dua me ntsis hauv cov kev taw qhia ntawm kev ntws thiab qeeb me ntsis rau nws, lub ntsuas ntsuas ntsuas qhov nrawm nrawm los ntawm qhov sib txawv ntawm lub sijhawm mus ncig. Txoj ntsiab cai no tau sau tseg zoo nyob rau hauvUltrasonic flow meter cov ntaub ntawvthiab tau siv rau hauv kev ntsuas kev lag luam txij li xyoo 1960s.
Qhov no tsis yog -tus qauv tsim yog dab tsi ua rau clamp- ntawm cov meters txaus nyiam rau kev ua haujlwm rov qab ua haujlwm, kev tshuaj xyuas lub zog ib ntus, ntsuas qhov system, thiab txhua qhov xwm txheej uas kaw lub kaw lus nyuaj lossis tsis tuaj yeem lees txais. Txij li thaum tsis muaj lub sensor nkag mus rau hauv cov yeeb nkab, tsis muaj cov txheej txheem cuam tshuam, tsis muaj cov yeeb nkab txiav, tsis muaj kev poob siab ntxiv, thiab tsis muaj qhov ntub dej los tswj.
Cov ntawv thov muaj xws li ntsuas dej txias txias, ntsuas dej condenser, ntsuas dej huv, kaw- voj HVAC tshuab, kev tswj xyuas hluav taws xob hauv tsev, thiab kev txheeb xyuas qhov ntws mus ib ntus. Hauv cov xwm txheej no, lub peev xwm los nruab rau sab nraud - qee zaum hauv qis dua ib teev - tuaj yeem txo tus nqi zog, kev cuam tshuam, thiab kev pheej hmoo ntawm qhov project.
Dab tsi yog Insertion Electromagnetic Flow Meter?
IbInsertion electromagnetic flow meter- feem ntau luv luv rau insertion mag meter - ntsuas qhov tshaj tawm ntawm cov kua conductive los ntawm kev ntxig ib qho kev sojntsuam rau hauv cov yeeb nkab los ntawm qhov chaw tapping. Tsis zoo li tag nrho -bore magnetic flow meter uas hloov ib ntu ntawm cov yeeb nkab, cov ntawv ntxig nkag nkag los ntawm kev sib txuas los yog tapping thiab ntsuas ntws los ntawm cov kav dej.
Nws txoj cai ntsuas yog nyob ntawmFaraday txoj cai ntawm electromagnetic induction. Thaum ib tug conductive kua txav los ntawm ib tug magnetic teb, nws generates ib tug voltage proportional rau ntws tshaj tawm. Lub ntsuas hluav taws xob ntsuas qhov hluav taws xob thiab hloov nws mus rau hauv kev nyeem ntawv txaus. Cov kev sib raug zoo yog qhia raws li E=k × B × D × V, qhov E yog qhov induced voltage, B yog lub magnetic teb zog, D yog cov yeeb nkab txoj kab uas hla, thiab V yog qhov nruab nrab ntawm cov kua tshaj tawm.
Vim tias lub hauv paus ntsiab lus no yog nyob ntawm kev coj ua, kev ntxig mag metres tsuas yog ua haujlwm nrog cov kua ua kua. Feem ntau cov dej thiab dej-raws li cov kev daws teeb meem muaj cov conductivity txaus (feem ntau siab dua 5 µS/cm). Txawm li cas los xij, cov kua dej tsis zoo xws li ntau cov hydrocarbons, cov roj ntshiab, lossis cov dej deionized nrog cov conductivity tsawg heev tsis haum. Qhov no yog ib qho tseem ceeb uas yuav tsum tau tshem tawm cov thev naus laus zis los ntawm kev txiav txim siab ua ntej lwm yam kev sib tham.
Insertion mag metres feem ntau yog siv rau hauv cov dej xa dej, cov kav dej hauv nroog, kev siv dej, kev saib xyuas dej, thiab kev tsim khoom ruaj khov - tshwj xeeb tshaj yog nyob rau hauv cov kav dej loj uas muaj qhov puv -bore mag meter yuav kim heev. Lawv yog ib qho kev xaiv muaj zog qhov twg cov kua yog conductive, ntev - xyuas lub sij hawm yog lub hom phiaj, thiab ib tug intrusive installation yog tsim nyog.
Lawv ua haujlwm txawv li cas - thiab Vim Li Cas Nws Tseem Ceeb
Yuav ua li cas clamp- ntawm kev ntsuas ultrasonic ntws ua haujlwm
Lub clamp- ntawm lub ntsuas ntsuas ultrasonic ntsuas qhov kev thauj mus los- lub sijhawm sib txawv ntawm cov cim ultrasonic taug kev nce toj thiab qis. Yog tias cov yeeb nkab puv thiab cov kua dej muab txoj hauv kev ruaj khov acoustic, qhov ntsuas tuaj yeem suav cov nrawm nrawm nrog qhov tseeb zoo - feem ntau ± 1% ntawm kev nyeem ntawv lossis zoo dua nyob rau hauv cov xwm txheej zoo.
Qhov no yog vim li castag nrho cov yeeb nkab tej yam kev mob tseem ceeb heev. Yog hais tias cov yeeb nkab tsis tag nrho, txoj kev ultrasonic teeb liab yuav cuam tshuam los yog distorted, ua tsis ruaj tsis khov los yog siv tsis tau nyeem ntawv. Peb tau pom ntau qhov xwm txheej hauv HVAC condenser water loops qhov twg ib nrab cov yeeb nkab xa rov qab los ua rau tsis sib xws, txawm tias lub installation nws tus kheej yog technically raug.
Cov kua dej kuj tseem ceeb. Kev thauj mus los- lub sijhawm thev naus laus zis ua tau zoo tshaj plaws hauv cov kua dej huv uas lub suab teeb liab tuaj yeem mus tsis tu ncua. Cov npuas huab cua ntau dhau, qhov siab siab ntawm cov khoom raug tshem tawm, lossis cov pa roj nkag tuaj yeem tawg lossis nqus cov teeb liab ultrasonic, txo kev ntseeg tau.
Cov khoom siv yeeb nkab, phab ntsa thickness, liner muaj, thiabqhov tseeb transducer spacingtag nrho cov cuam tshuam teeb liab zoo. Lub siab - cov cuab yeej zoo tsuas tuaj yeem ua tau zoo yog tias nws tau nruab rau ntawm cov yeeb nkab haum nrog cov yeeb nkab thiab cov dej tsis zoo nkag mus rau hauv lub ntsuas. Qhov no yog ib qho chaw uas txawm tias cov neeg ua haujlwm tau paub txog qee zaum ua yuam kev - sab nraud txoj kab uas hla cov tswv yim tsis raug, cov kab tsis zoo, lossis cov yeeb nkab tsis raug xaiv cov khoom siv tsis raug tuaj yeem ua rau qhov tseeb qhov tseeb.
Yuav ua li cas ntxig electromagnetic flow ntsuas ua haujlwm
Ib qho ntxig mag meter ua haujlwm los ntawm kev tso lub ntsuas ntsuas mus rau hauv cov kua hluav taws xob thiab ntsuas qhov hluav taws xob tsim tawm thaum cov kua txav los ntawm qhov chaw sib nqus. Lub sensor yog nyob rau hauv kev sib cuag ncaj qha nrog cov txheej txheem kua, thiab kev ntsuas nyob ntawm tag nrho cov hluav taws xob conductivity ntawm cov kua.
Qhov no yog vim li casconductive kua yog ib qho nyuaj yuav tsum tau. Yog tias cov kua ua tsis tau hluav taws xob zoo txaus, lub meter tsuas tsis tuaj yeem tsim cov teeb liab txhim khu kev qha. Rau cov dej-raws li kev siv, qhov no feem ntau tsis muaj kev txhawj xeeb. Tab sis nyob rau hauv ib puag ncig kev lag luam uas tsis yog - cov kua dej conductive lossis sib xyaw ua ke - cov txheej txheem xov xwm muaj nyob, qhov yuav tsum tau ua kom paub tseeb ua ntej xaiv.
Insertion qhov tob thiab ntws profileyog qhov tseem ceeb sib npaug - thiab feem ntau underestimated. Lub sensor ntsuas qhov nrawm ntawm ib qho taw tes (lossis thaj tsam nqaim) hauv cov yeeb nkab hla -section. Cov chaw tsim tshuaj paus qhia txog qhov tob tob uas xav tias muaj qee qhov ntws profile. Yog hais tias qhov tseeb ntws profile deviates los ntawm qhov kev xav - vim tsis txaus khiav ncaj, nyob ze lub luj tshib, ib feem qhib li qub, los yog asymmetric flow - kev nyeem ntawv yuav tsis sawv cev rau qhov tseeb nruab nrab tshaj tawm thoob plaws cov yeeb nkab.
Raws li kev lag luam kev taw qhia, kev ntxig - hom flowmeter yuav xav tau20 mus rau 50 yeeb nkab diameters ntawm upstream ncaj khiavrau kev txhim khu kev qha. Hauv cov chav tsev neeg coob coob lossis cov kav dej hauv av, ua kom tau raws li qhov yuav tsum tau ua yuav yog ib qho kev sib tw loj.
Insertion mag meters kuj nyob ntawmruaj khov puv - yeeb nkab tej yam kev mob, ib lub ntsiab lus uas qee zaum tsis pom. Thaum tag nrho - yeeb nkab yuav tsum muaj feem ntau cuam tshuam nrog clamp- ntawm ultrasonic meters, ib qho ntxig mag meter nyob rau hauv ib feem ntawm cov yeeb nkab yuav ua rau kev nyeem ntawv tsis txaus ntseeg vim hais tias qhov kev sojntsuam yuav tsis nkag mus rau tag nrho lossis qhov ntws profile yuav tsis tuaj yeem pom.
Vim li cas lub hauv paus ntsiab lus ua haujlwm ua rau daim ntawv thov haum
Qhov sib txawv ntawm txoj hauv kev ua haujlwm yog qhov laj thawj tseem ceeb ntawm ob lub thev naus laus zis no tsis tuaj yeem hloov pauv hauv txhua txoj haujlwm. Clamp- ntawm kev ntsuas ultrasonic tsis yog- ntxeem tau thiab zoo tshaj plaws rau cov kav dej uas nqa cov kua dej huv. Insertion electromagnetic ntsuas yog intrusive tab sis tuaj yeem yog qhov kev xaiv muaj zog thiab vam khom rau cov kua dej hauv cov khoom siv mus tas li.
Ib qho cuab yeej technology tsis yog universally zoo dua lwm yam. Txhua tus daws qhov teeb meem sib txawv. Lo lus nug tsis yog "qhov ntsuas qhov twg zoo dua" tab sis "qhov ntsuas qhov twg haum rau cov kua dej, cov yeeb nkab, thiab ntsuas lub hom phiaj zoo dua."
Cov lus sib piv ceev
| Cov khoom sib piv | Clamp-Rau Ultrasonic | Insertion Electromagnetic |
|---|---|---|
| Txoj kev teeb tsa | Sab nraud (tsis yog-invasive) | Intrusive (drilling / tapping / kub kais) |
| Yuav tsum tau kaw | Feem ntau tsis muaj | Feem ntau yog; kub kais tau tab sis ntxiv tus nqi |
| Kev xav tau dej | Ntxuav, tag nrho cov yeeb nkab; ruaj khov acoustic txoj kev | Conductive kua (Ntau dua los yog sib npaug rau 5 µS / cm typical) |
| Tag nrho cov yeeb nkab yuav tsum tau | Yog - tseem ceeb | Tau - kuj tseem ceeb tab sis tsis sib tham |
| Ncaj - khiav yuav tsum tau ua | 10-20D upstream / 5D downstream typical | 20-50D sab saum toj pom zoo |
| Cov khoom siv yeeb nkab rhiab heev | Siab - phab ntsa, liner, roughness, nplai tag nrho cuam tshuam cov teeb liab | Tsawg - dej ncaj qha |
| Kev tu | Tsawg - tsis muaj qhov ntub dej | Nruab nrab - electrode fouling, txheej, scaling tau |
| Zoo tshaj rau | Retrofit, kev sim ib ntus, kev tshuaj xyuas lub zog, tsis yog -kev saib xyuas | Kev soj ntsuam tas mus li ntawm cov dej conductive |
| Kev txwv loj | Teeb liab txoj kev rhiab heev rau cov yeeb nkab / kua dej | Invasive installation; conductivity xav tau |
| Kev ntsuas ib ntus | Zoo heev - yooj yim txav ntawm qhov chaw | Tsis siv tau - mus tas li installation |
Qhov tseem ceeb sib txawv hauv kev nthuav dav
Kev teeb tsa
Kev teeb tsa yog qhov pom qhov sib txawv tshaj plaws, tab sis nws yuav tsum tsis yog qhov tseem ceeb ua rau koj txiav txim siab. Clamp- ntawm ultrasonic meters mount externally - tsis muaj drilling, tsis muaj kev sib cuag nrog cov kua, tsis muaj cuam tshuam rau cov txheej txheem. Hauv ntau qhov kev ua haujlwm rov qab los yog kev ntsuas ib ntus, qhov no tuaj yeem txuag hnub ntawm kev npaj thiab txo qis kev pheej hmoo ua haujlwm ntau.
Insertion mag meters xav tau cov yeeb nkab nkag - drilling, tapping, lossis kub tapping nyob ntawm seb lub kaw lus puas tuaj yeem depressurized. Qhov no ntxiv qhov nyuaj, xav tau kev npaj kev nyab xeeb, tso cai hauv qee qhov chaw, thiab tej zaum yuav xav tau kev ua haujlwm tshwj xeeb. Txawm li cas los xij, ib zaug ntsia tau zoo, qhov taw tes ntxig yuav yog qhov chaw ruaj khov, ntsuas qhov chaw nyob ruaj khov uas tsis tas yuav rov ua dua tshiab rau cov yeeb nkab phab ntsa sib txawv.
Cov kua dej haum
Qhov no yog qhov uas ntau qhov kev xaiv yuam kev tshwm sim. Hauv kev ua haujlwm retrofit,installation yooj yim feem ntau tau txais kev saib xyuas ntau dhau, thaum cov dej haum tau txais tsawg dhau.
Clamp- ntawm kev thauj mus los ultrasonic- lub sijhawm ntsuas yuav tsum muaj cov yeeb nkab puv thiab cov kua dej huv. Cov npuas ntau dhau, cov khoom raug tshem tawm siab, lossis tsis ruaj khov acoustic tej yam kev mob txo cov teeb liab kev ntseeg tau. Lawv zoo heev rau cov dej txias txias, dej condenser, thiab cov dej hauv tsev - tab sis tsis tshua muaj kev ntseeg siab rau cov dej rov qab uas muaj cov khoom hnyav hnyav lossis cov tshuab aerated.
Insertion mag meters xav tau cov kua conductive. Yog tias cov kua dej tsis muaj hluav taws xob, cov thev naus laus zis tsuas yog siv tsis tau - lub sijhawm. Rau feem ntau cov dej thiab dej -raws li kev daws teeb meem, conductivity txaus. Tab sis ib txwm txheeb xyuas, tshwj xeeb tshaj yog rau cov dej demineralized, glycol sib xyaw ntawm qhov tsis sib xws, lossis cov txheej txheem kev lag luam uas yuav txawv ntawm qhov sib txawv.
Hauv qee qhov project,cov kua nws tus kheej tshem tawm ib qho kev xaiv ua ntej installation yog txawm tham. Yog tias cov kua dej tsis yog -conductive, insertion mag tawm. Yog tias cov kua dej qias neeg dhau los yog aerated rau kev thauj mus los - sij hawm, clamp- ntawm ultrasonic tej zaum yuav tawm. Kev tshuaj xyuas cov kua dej ua ntej tuaj yeem txuag lub sijhawm thiab nyiaj txiag tseem ceeb.
Qhov tseeb thiab kev ua haujlwm hauv cheeb tsam
Ntau tus neeg yuav khoom sib piv cov ntsiab lus tseeb, tab sis qhov tseeb yog nyob ntawm ntau ntau dua li cov ntaub ntawv hais.
Rau clamp- ntawm ultrasonic meters, qhov kev ua tau zoo nyob ntawm kev hloov pauv hloov pauv, cov ntaub ntawv raug cov yeeb nkab nkag (sab nraud txoj kab uas hla, phab ntsa thickness, cov khoom, liner),ncaj- khiav muaj, teeb liab lub zog, thiab installation zoo. Peb tau pom cov xwm txheej uas tib lub siab - zoo clamp- ntawm meter ua ± 1% raug ntawm ib lub yeeb nkab thiab ± 5% ntawm lwm tus - qhov sib txawv yog tag nrho vim kev teeb tsa, tsis yog lub ntsuas hluav taws xob nws tus kheej.
Rau insertion mag meters, qhov kev ua tau zoo nyob ntawm qhov tob qhov tob, ntws profile stability, conductivity theem, electrode mob, thiab seb qhov ntsuas qhov taw tes tiag tiag sawv cev rau qhov nruab nrab tshaj tawm hauv cov yeeb nkab. Yog tias qhov kev sojntsuam raug teeb tsa ntawm qhov tsis ncaj ncees lawm qhov tob lossis qis qis ntawm kev cuam tshuam, kev nyeem ntawv tuaj yeem hloov pauv tsis tu ncua yam tsis muaj teeb meem pom tseeb.
Cov lus xaus ncaj ncees: hais qhov tseeb yog qhov tseem ceeb raws li lub hauv paus, tab sisdaim ntawv thov haum thiab kev teeb tsa zoo feem ntau muaj kev cuam tshuam ntau dua rau cov txiaj ntsig tiag - ntiaj teb ntau dua li cov ncauj lus tshwj xeeb.
Kev tu thiab kev cia siab ntev ntev -
Clamp- ntawm ultrasonic meters tsis muaj qhov ntub dej - tsis muaj electrodes, seals, los yog probes raug rau cov txheej txheem kua. Qhov no ua rau lawv tsis tshua muaj siab -kev tu hauv feem ntau cov ntawv thov ua kua. Txawm li cas los xij, transducer coupling zoo yuav tsum tau kuaj xyuas ib ntus, thiab cov yeeb nkab saum npoo tej yam kev mob (xws li kev xeb sab nraud lossis nplai tsim nyob rau hauv lub transducer) tuaj yeem hloov pauv raws sijhawm thiab cuam tshuam cov teeb liab zoo.
Insertion mag metres tso cov khoom nkag ncaj qha rau hauv cov kua. Nyob ntawm daim ntawv thov, electrode fouling, mineral scaling, biological coating, or process-related buildup yuav maj mam cuam tshuam kev ua tau zoo. Hauv cov dej hauv nroog uas muaj cov ntxhia hauv cov ntsiab lus siab, peb tau pom cov xwm txheej uas cov txheej txheem electrode ua rau muaj kev cuam tshuam me ntsis hauv kev nyeem ntawv ntau dua 12-18 lub hlis, yuav tsum tau ntxuav thiab rov kho dua.
Rau kev txhim kho mus tas li,npaj kev saib xyuas thaum ntxov. Ib qho ntxig mag meter ntsia rau hauv ib qho nyuaj - mus rau - mus txog hauv av vault yuav kim heev rau kev pab yog tias qhov kev sojntsuam xav tau kev tshuaj xyuas lossis hloov.
Tag nrho cov nqi ntawm cov tswv cuab
Tus nqi yuav ib leeg tsis qhia tag nrho zaj dab neeg. Lub clamp- ntawm lub ntsuas ntsuas ultrasonic yuav raug nqi ntau dua lossis tsawg dua qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas raws li cov yeeb nkab loj, nta, thiab hom - tab sis tag nrho cov nqi ntawm cov tswv cuab yuav tsum suav rau kev teeb tsa kev ua haujlwm, tus nqi kaw, cov txheej txheem cuam tshuam, lub sijhawm ua haujlwm, kev saib xyuas zaus, thiab kev nkag mus rau yav tom ntej.
Rau kev tshawb fawb ib ntus, kev tshuaj xyuas lub zog, lossis cov haujlwm ua pov thawj rov qab ua haujlwm, zam kev kaw thiab kev teeb tsa nyuaj tuaj yeem ua rau clamp- ntawm meter qhov kev xaiv nyiaj txiag ntau dua tag nrho - txawm tias chav tsev nqi siab dua. Rau ib daim ntawv thov ruaj khov, ruaj khov rau ntawm cov dej conductive uas tau npaj nkag mus rau hauv kev teeb tsa, ib qho kev ntsuas qhov ntsuas qhov ntsuas yuav muab qhov ntev tshaj plaws - lub sij hawm tus nqi rau ib qho kev ntsuas.
Qhov zoo thiab qhov txwv ntawm Clamp- Ntawm Ultrasonic Flow Meters
Cov txiaj ntsig tseem ceeb
Lub ntsiab kom zoo dua ntawmtsis yog -invasive clamp- ntawm flowmeteryog tias lawv ntsuas qhov ntws tsis qhib cov yeeb nkab. Qhov no ua rau lawv muaj txiaj ntsig tshwj xeeb hauv cov chaw uas twb muaj lawm qhov system kaw yog kim lossis ua haujlwm tsis txaus ntseeg.
Lawv zam cov yeeb nkab txiav tag nrho, uas ua kom yooj yim txoj haujlwm npaj thiab tshem tawm qhov kev pheej hmoo ntawm qhov ntsuas qhov ntsuas. Txij li thaum tsis muaj dab tsi protrudes rau hauv cov dej ntws, muaj xoom siab poob los ntawm lub 'meter'. Kev teeb tsa feem ntau yog nrawm dua li lwm yam kev cuam tshuam - rau kev sim ib ntus lossis kev tshawb xyuas lub zog, aPortable ultrasonic flow meterfeem ntau tuaj yeem raug ntsia, teeb tsa, thiab nyeem ntawv hauv ib teev.
Rau HVAC chilled dej thiab condenser dej daim ntaub ntawv nyob rau hauv cov tsev nyob, qhov no feem ntau ua rau clamp- ntawm ultrasonic lub neej ntawd xav txog thawj zaug, vim hais tias kaw lub chiller cog thaum lub sij hawm nyob rau hauv lub sij hawm yog tsis tshua muaj kev xaiv.
Cov kev txwv tseem ceeb
Kev ua tau zoo nyob ntawm cov yeeb nkab thiab cov kua dej. Ib qho clamp- ntawm lub ntsuas ntsuas tsis sib npaug rau txhua cov khoom siv yeeb nkab, qhov xwm txheej ntawm phab ntsa, hom liner, lossis cov kua dej. Cov kav hlau qub uas muaj qhov hnyav sab hauv, cov kav dej nrog lub hnab ntim cua, lossis cov tshuab nrog cov qib sib txawv tuaj yeem ua rau tag nrho cov teeb liab degradation.
Nws kuj tsis yog qhov kev xaiv zoo tshaj plaws rau kev qias neeg, aerated, lossis cov ntawv sau ib nrab. Yog tias npuas, khib nyiab, lossis cov yeeb nkab tsis ruaj khov ua rau cuam tshuam rau txoj hauv kev ultrasonic, kev nyeem ntawv yuav ua tsis tau zoo lossis tsis cuam tshuam.
Installation quality tseem ceeb heev. Qhov sib txawv ntawm transducer tsis raug, qhov chaw tsis zoo mounting, cov ntaub ntawv yeeb nkab tsis raug, lossistsis txaus khiav ncajtuaj yeem degrade qhov tseeb zoo tshaj qhov ntsuas ntsuas ntsuas. Clamp- ntawm thev naus laus zis yooj yim, tab sis nws tsis zam txim rau kev teeb tsa tsis tu ncua.
Ib qho piv txwv tiag - ntiaj teb no: nyob rau hauv ib lub tsev loj chilled dej retrofit, ib tug clamp- ntawm 'meter' tau ntsia rau ntawm ib tug 12-inch steel yeeb nkab uas zoo li los ntawm sab nraud. Cov ntawv nyeem tsis raug. Kev tshawb nrhiav pom qhov hnyav sab hauv scaling thiab mortar liner uas tsis tau sau tseg. Thaum qhov tseeb liner tsis tau nkag mus thiab cov transducers tau rov ua dua, qhov tseeb tau zoo heev. Qhov teeb meem tsis yog lub 'meter' - nws yog cov ntaub ntawv tsis tiav cov yeeb nkab.
Qhov zoo thiab kev txwv ntawm Insertion Electromagnetic Flow Meters
Cov txiaj ntsig tseem ceeb
Insertion mag meters yog ib qho kev xaiv muaj zog rau cov kua ua kua, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov dej uas yuav tsum tau ntsuas qhov ntsuas mus tas li. Hauv kev faib dej hauv nroog, cov txheej txheem dej hauv kev lag luam, thiab cov kav dej, lawv tuaj yeem muab kev cia siab rau ntev - lub sijhawm saib xyuas ntawm tus nqi qis dua li puv - tho qhov ntsuas magnetic - tshwj xeeb tshaj yog nyob rau hauv cov yeeb nkab diameters siab tshaj 8 ntiv tes.
Lawv tsis tshua nkag siab rau cov yeeb nkab phab ntsa ntau dua li clamp- ntawm ultrasonic meters, vim hais tias lub sensor yog nyob rau hauv ncaj qha kev sib cuag nrog cov kua es tsis nyeem los ntawm cov yeeb nkab phab ntsa. Qhov no tuaj yeem yog qhov zoo dua ntawm cov kav dej laus lossis cov kav dej hnyav uas qhov kev nkag mus rau ultrasonic teeb liab yuav nyuaj.
Vim tias lawv tau tsim los rau kev teeb tsa mus tas li, lawv tuaj yeem ua cov ntsiab lus ruaj khov hauv kev tswj hwm thiab kev saib xyuas cov tshuab rau xyoo, nrog kev ua tau zoo ntawm kev kwv yees ntev npaum li cov txheej txheem cov txheej txheem tseem nyob hauv qhov tshwj xeeb.
Cov kev txwv tseem ceeb
Thawj qhov kev txwv yog lub nra ntawm kev teeb tsa. Drilling, tapping, los yog kub tapping yog yuav tsum tau, thiab qhov no ua rau cov txheej txheem invasive dua ib tug clamp- ntawm kev daws. Hauv cov kab ke uas tsis tuaj yeem zam kev cuam tshuam ntawm cov txheej txheem, qhov no tuaj yeem yog kev txiav txim siab -breaker.
Tus tsim intrusive kuj coj lub sensor rau hauv kev sib cuag nrog cov kua, uas qhia txog kev txhawj xeeb txog kev saib xyuas. Nyob ntawm qhov nruab nrab, fouling, ntxhia txheej, kev loj hlob lom, lossis electrode scaling tej zaum yuav cuam tshuam rau lub sijhawm ntev -qhov tseeb thiab yuav tsum tau ntxuav ib ntus lossis hloov pauv.
Insertion mag meters kuj yogtsawg yooj yim rau kev ntsuas ib ntus. Lawv yog ib qho kev txhim kho ruaj khov - koj tsis tuaj yeem txav tau yooj yim ntawm cov kav dej lossis siv rau luv luv - lub sijhawm tshawb xyuas lub zog. Rau ib qho - lub sij hawm ntws pov thawj los yog portable kuaj, clamp- ntawm ultrasonic yog tus yeej meej.
Tsis tas li ntawd, lubncaj- kev khiav hauj lwm yuav tsum yog feem ntau underestimated. Vim tias lub ntsuas ntsuas ntsuas qhov nrawm ntawm ib qho taw tes, qhov kev nyeem ntawv qhov tseeb nyob ntawm qhov zoo npaum li cas ib qho - taw tes tshaj tawm sawv cev rau cov yeeb nkab qhov nruab nrab ntws. Yog tias tsis muaj kev khiav ncaj nraim, qhov ntsuas tuaj yeem ua tsis tu ncua, thiab feem ntau tsis muaj lub tswb pom tseeb lossis ceeb toom los qhia qhov no.
Ib qho piv txwv: nyob rau hauv ib txoj haujlwm dej hauv nroog, ib qho kev ntxig mag 'meter' tau teeb tsa tsuas yog 5 yeeb nkab diameters downstream ntawm 90℃luj tshib. Cov dej ntws profile ntawm qhov kev sojntsuam taub tau zoo asymmetric, thiab lub ntsuas ntsuas tsis tu ncua dhau - nyeem los ntawm kwv yees li 8%. Hloov lub 'meter' mus rau ib ntu nrog 25 txoj kab uas hla ntawm txoj kab ncaj nraim tau daws qhov yuam kev. Lub 'meter' tau ua haujlwm raug tag nrho lub sijhawm - nws tau ntsuas raws nraim li cas qhov ntws profile tau muab rau ntawm qhov ntawd.
Yuav Xaiv Li Cas: Kev Txiav Txim Siab
Xaiv Clamp-Rau Ultrasonic Thaum:
Lub kaw lus tsis tuaj yeem kaw lossis tso dej rau kev teeb tsa 'meter'. Txoj haujlwm yog ib ntus - kev tshawb xyuas lub zog, ntsuas qhov system, lossis luv luv - lub sijhawm ua pov thawj. Cov kua yog huv si thiab cov yeeb nkab khiav puv. Tsis pub nkag mus rau yeeb nkab lossis xav tau. Koj yuav tsum ntsuas qhov ntws ntawm ntau qhov chaw nyob rau lub sijhawm (siv nqa tau). Daim ntawv thov suav nrog dej txias, dej condenser, lossis cov txheej txheem dej huv hauv HVAC lossis cov kev pabcuam hauv tsev.
Xaiv Insertion Electromagnetic Thaum:
Cov kua yog conductive thiab yuav nyob twj ywm conductive nyob rau lub sij hawm. Yuav tsum muaj qhov ntsuas qhov ntev, ntev -lub sijhawm ntsuas. Intrusive installation tau txais thiab nkag mus rau yav tom ntej txij nkawm tau raug npaj. Cov yeeb nkab mob tsis zoo heev rau kev txhim khu kev qha ultrasonic teeb liab kis tau tus mob (xws li, hnyav sab hauv nplai ntawm cov yeeb nkab steel qub). Lub kaw lus yog tsim los rau loj - yeeb nkab mus tas li saib xyuas - dej hauv nroog, txheej txheem dej faib, kev lag luam dej. Ncaj- khiav cov cai tuaj yeem ua tau raws li qhov chaw teeb tsa.
Cov ntawv txheeb xyuas ceev
Ua ntej xaiv ib lub tshuab, ua haujlwm los ntawm cov lus nug no. Lawv feem ntau nthuav qhia txoj kev yog sai dua li kev sib piv cov ntawv qhia khoom:
Puas yog cov yeeb nkab ib txwm puv?Yog tias tsis yog, ob qho tib si thev naus laus zis yuav tawm tsam - tab sis clamp- ntawm ultrasonic yog rhiab heev rau ib nrab sau.
Puas yog kua conductive?Yog tias tsis yog, qhov ntxig mag raug tshem tawm.
Puas yog cov kua huv txaus rau kev thauj mus los - lub sijhawm ultrasonic?Yog tias tsis muaj (cov khoom hnyav, npuas, aeration), clamp- ntawm ultrasonic raug cuam tshuam.
Cov yeeb nkab puas tuaj yeem raug laum lossis kub -tapping?Yog tsis yog, clamp-on yog tib txoj kev xaiv.
Qhov no puas yog kev ntsuas ib ntus lossis kev saib xyuas tas mus li?Ib ntus txhawb nqa clamp-rau.
Muaj pes tsawg khiav ncaj?Kev khiav ncaj nraim tsis txaus cuam tshuam rau ob lub meters, tab sis kev ntxig mag yog rhiab dua.
Kev saib xyuas puas yuav yooj yim lossis nyuaj tom qab?Nyuaj-rau- mus txog qhov chaw nyiam clamp- ntawm xoom- tu profile.
Dab tsi yog cov khoom siv yeeb nkab thiab sab hauv?Cov kav dej qub, ntsuas, lossis cov kav dej yuav xav tau kev saib xyuas ntxiv nrog clamp- ntawm kev teeb tsa.
Dab tsi ntawm qhov tseeb ntawm qhov chaw yog qhov tseeb raws li qhov tseeb?Ua siab ncaj txog kev txwv kev teeb tsa - qhov tseeb tshaj plaws ntawm daim ntawv txhais tau tias tsis muaj dab tsi yog tias cov xwm txheej hauv teb tsis txhawb nws.
Rau phau ntawv qhia ntxaws ntxiv ntawmxaiv electromagnetic flowmeter, saib peb cov lus xaiv tshwj xeeb.
Feem ntau yuam kev kom zam
Ua yuam kev 1: Piv txwv tias clamp-on yog ib qho kev xaiv zoo vim nws yooj yim rau nruab.Kev txhim kho yooj yim tsis tau lees tias kev ntsuas zoo dua. Yog tias cov kua dej lossis cov yeeb nkab tsis haum rau kev thauj mus los ultrasonic- lub sijhawm, kev teeb tsa yooj yim yuav tsim cov ntaub ntawv tsis ntseeg.
Qhov yuam kev 2: Piv txwv tias ntxig mag yog ib txwm muaj zog dua vim tias nws yog intrusive.Hauv ntau daim ntawv thov dej conductive, nws yog qhov kev xaiv zoo heev. Tab sis intrusive installation thiab cov txheej txheem ncaj qha kev sib cuag tsis yog ib txwm zoo - lawv ntxiv lub nra hnyav thiab tiv thaiv kev siv ib ntus.
Qhov yuam kev 3: Tsis quav ntsej cov dej conductivity.Qhov no yog qhov kev xaiv yooj yim tshaj plaws rau kev ntsuas electromagnetic. Overlooking nws ua rau kev xaiv tsis raug tam sim thiab siv lub sijhawm ua haujlwm.
Qhov yuam kev 4: Kev kwv yees ncaj nraim - khiav cov cai.Ob lub technologies raug cuam tshuam los ntawm kev khiav ncaj nraim, tab sisinstallation tej yam kev mobmuaj qhov cuam tshuam loj rau qhov raug. Ib txwm ntsuas cov yeeb nkab ncaj nraim ua ntej lub 'meter' tuaj txog ntawm qhov chaw.
Qhov yuam kev 5: Tsis quav ntsej cov yeeb nkab rau clamp- ntawm kev teeb tsa.Internal scale, tsis paub liners, deteriorated yeeb nkab phab ntsa, los yog tsis - cov ntaub ntawv txheem tuaj yeem cuam tshuam txoj kev teeb liab ultrasonic. Tshawb xyuas thiab txheeb xyuas cov ntaub ntawv yeeb nkab thaum twg ua tau.
Qhov yuam kev 6: Sib piv qhov tseeb ntawm cov catalog yam tsis xav txog cov xwm txheej hauv cheeb tsam.Ib lub 'meter' nrog cov kev ntsuas zoo dua tuaj yeem ua haujlwm tsis zoo hauv thaj teb yog tias nws tsis zoo sib xws rau daim ntawv thov tiag tiag. Qhov tseeb ntawm thaj chaw nyob ntawm qhov sib xyaw ua ke ntawm cov 'meter' zoo, daim ntawv thov tsim nyog, thiab kev ua tiav kev teeb tsa.
Qhov teeb meem tsis yog tias ib qho kev siv tshuab tsis raug.Qhov teeb meem yog siv cov tshuab tsis raug rau txoj haujlwm tsis raug.
Daim ntawv thov Scenario
Scenario 1: HVAC chilled dej retrofit nyob rau hauv lub chaw ua hauj lwm tsev
Tus tswv tsev xav tau cov ntaub ntawv ntws ntawm cov dej txias rau kev tshawb xyuas lub zog, tab sis lub tsev tau nyob tag nrho thiab lub chiller tsis tuaj yeem kaw. Cov kav dej yog 10-inch carbon steel nyob rau hauv qhov zoo, nqa cov dej txias txias ntawm cov yeeb nkab tag nrho. Aclamp- ntawm ultrasonic flow metertau teeb tsa hauv tsawg dua ob teev yam tsis muaj kev cuam tshuam rau kev ua haujlwm hauv tsev. Cov ntaub ntawv khaws tseg tau siv los txheeb xyuas qhov ntsuas qhov system thiab txheeb xyuas lub twj tso kua mis loj uas tau nkim lub zog.
Scenario 2: Kev faib dej hauv nroog - kev saib xyuas mus tas li ntawm 24-nti lub ntsiab
Cov dej siv hluav taws xob xav tau kev saib xyuas tas li ntawm lub cev loj. Cov dej yog cov khoom siv hluav taws xob (cov khoom siv hauv nroog), thiab cov khoom siv hluav taws xob tau npaj lub qhov rais txij nkawm rau kev teeb tsa. Ib qho ntxig mag meter raug xaiv vim nws muaj qhov ntsuas qhov ruaj khov, ruaj khov ntawm tus nqi qis dua li qhov puv -bore mag meter rau cov yeeb nkab loj. Nrog rau kev khiav ncaj nraim txaus thiab npaj kev saib xyuas nkag los ntawm qhov saum toj no - hauv av valve chamber, qhov ntxig mag meter tau ua haujlwm tau zoo rau ntau tshaj peb xyoos.
Scenario 3: Clamp-raug ntsia rau ntawm ib qho qub scaled steel yeeb nkab - pib tsis ua hauj lwm, ces ua tiav
Ib lub chaw ua haujlwm tau sim nruab ib lub clamp- ntawm ultrasonic meter ntawm 16-inch steel yeeb nkab uas tau ua haujlwm rau 20+ xyoo. Kev nyeem thawj zaug tsis ruaj khov nrog lub teeb liab tsis zoo. Kev tshawb nrhiav pom qhov hnyav sab hauv uas tsis tau sau tseg. Tom qab hloov mus rau Z-mount (direct) transducer configuration, nkag mus kho phab ntsa thickness ntsuas, thiab kho cov teeb liab nce, lub 'meter' ua ruaj khov, rov nyeem dua. Cov lus qhia: clamp-on ua haujlwm ntawm cov kav dej nyuaj, tab sis tsuas yog thaum tus installer siv sij hawm los qhia cov yeeb nkab kom raug.
Scenario 4: Insertion mag ntawm condenser water - thaum ob qho kev xaiv tau siv tau
Ib lub chaw loj cov ntaub ntawv xav tau kev saib xyuas tas li ntawm nws cov dej condenser. Cov dej yog conductive, cov yeeb nkab yog 14-inch, thiab ib tug tshwj xeeb tu lub vault muab kev nkag tau zoo. Ob leeg clamp- ntawm ultrasonic thiab insertion mag yog technically siv tau. Pab neeg no tau xaiv lub insertion mag meter vim qhov kev soj ntsuam tas li, kev saib xyuas kev nkag tau twb tau npaj lawm, thiab cov hnub nyoog cov yeeb nkab hauv ob sab phlu ua rau lawv tsis muaj kev ntseeg siab nyob rau lub sij hawm ntev ultrasonic teeb liab stability. Lub insertion mag meter tau teeb tsa los ntawm cov kais dej kub thaum lub sijhawm teem caij kho qhov rais.
FAQ
Puas yog lub clamp- ntawm ultrasonic flow meter yog qhov tseeb dua li qhov ntsuas qhov ntsuas qhov ntxig?
Tsis tas li. Ob leeg tuaj yeem ua tiav qhov raug zoo raws li qhov raug. Hauv kev huv, puv - cov ntawv thov yeeb nkab nrog kev teeb tsa kom zoo, lub clamp- ntawm ultrasonic meter tuaj yeem xa ± 1% lossis zoo dua. Ib qho kev ntxig mag meter rau ntawm cov dej conductive nrog kev khiav ncaj ncaj tuaj yeem phim qhov ntawd. Qhov hloov pauv tseem ceeb tsis yog qhov thev naus laus zis yog qhov tseeb "ntau dua" - nws yog qhov twg zoo dua rau koj cov yeeb nkab tshwj xeeb, kua dej, thiab kev teeb tsa.
Puas tuaj yeem clamp- ntawm ultrasonic hloov qhov ntxig ntxig rau hauv txhua daim ntawv thov?
Tsis yog. Clamp- ntawm kev thauj mus los- lub sij hawm meters nyob ntawm txoj kev ruaj khov acoustic los ntawm cov kua dej huv hauv cov yeeb nkab puv. Yog tias cov yeeb nkab tau ntim ib nrab, txoj hauv kev acoustic tsis zoo, lossis cov kua ua kua muaj ntau dhau los yog npuas, clamp- ntawm yuav tsis ua haujlwm tau zoo. Hauv cov xwm txheej ntawd, qhov ntsuas hluav taws xob ntxig hluav taws xob - muab cov kua dej yog cov khoom siv hluav taws xob - yuav yog qhov kev xaiv muaj zog dua.
Puas yog ib qho ntxig electromagnetic meter xav tau cov kua conductive?
Yog lawm. Qhov no yog ib qho tseem ceeb ntawm kev ua haujlwm rau txhua qhov kev ntsuas electromagnetic flow. Yog hais tias cov kua dej tsis muaj conductivity txaus, lub meter tsis tuaj yeem tsim lub teeb liab ntsuas. Feem ntau cov dej-raws li cov kua dej muaj peev xwm ua tau zoo, tab sis ib txwm txheeb xyuas - tshwj xeeb tshaj yog rau cov dej demineralized, siab - cov dej ntshiab huv, lossis tsis yog - cov kua dej aqueous.
Qhov kev xaiv twg yog qhov zoo dua rau HVAC chilled dej thiab condenser dej retrofit?
Nyob rau hauv feem ntau HVAC retrofit tej yaam num uas muaj chilled dej los yog condenser dej systems, clamp- ntawm ultrasonic yog qhov kev xaiv ntau dua vim nws yogtsis yog -invasivethiab feem ntau zam kev kaw. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv cov tsev nyob qhov twg cov tshuab ua haujlwm cuam tshuam nrog kev ua haujlwm siab. Txawm li cas los xij, cov yeeb nkab yuav tsum tau puv, cov dej yuav tsum huv si, thiab cov yeeb nkab saum npoo yuav tsum tso cai rau kev sib txuas zoo acoustic.
Qhov ntsuas twg zoo dua thaum kaw tsis tau?
Clamp- ntawm ultrasonic feem ntau yog qhov kev xaiv uas nyiam thaum kaw tsis yog qhov kev xaiv. Nws mounts sab nraud yam tsis muaj cov yeeb nkab nkag. Qee qhov ntxig mag metres tuaj yeem ntsia tau los ntawm kev kub tapping yam tsis muaj kev kaw tag nrho, tab sis kub tapping ntxiv tus nqi, kev npaj kev nyab xeeb, thiab cov cuab yeej tshwj xeeb. Rau feem ntau tsis muaj- qhov xwm txheej kaw, clamp- ntawm ultrasonic yog txoj kev yooj yim dua thiab nyab xeeb dua.
Dab tsi yog qhov ncaj ncaj - yuav tsum tau khiav?
Clamp- ntawm ultrasonic meters feem ntau xav tau 10 mus rau 20 yeeb nkab diameters ntws thiab 5 diameters downstream kom pom tseeb. Insertion mag meters tej zaum yuav xav tau 20 los yog ntau dua txoj kab uas hla mus rau sab saud vim qhov ib qho - taw tes ntsuas yog rhiab heev rau ntws profile distortions. Hauv qhov chaw nruj, cov cua txias tuaj yeem pab tau - tab sis txoj hauv kev zoo tshaj plaws yog xaiv qhov chaw teeb tsa nrog cov yeeb nkab ncaj ncaj los ntawm qhov pib. Rau cov lus qhia ntxaws txog kev teeb tsa, saib peb tsab xov xwm ntawmyam cuam tshuam rau ultrasonic flow meter installation.
Kuv puas tuaj yeem siv lub clamp- ntawm ultrasonic meter ntawm cov kav dej qub lossis cov kav dej?
Yog, tab sis nrog kev saib xyuas ntxiv. Hnyav sab hauv scaling hloov cov yeeb nkab phab ntsa zoo thiab tuaj yeem nqus lossis tawg cov teeb liab ultrasonic. Tej zaum koj yuav xav tau hloov pauv hloov pauv hloov kev teeb tsa (piv txwv li, los ntawm V-mount rau Z-mount), kho cov teeb liab tsis, thiab ntsuas qhov tseeb phab ntsa tuab nrog rau nplai. Yog tias qhov ntsuas ntsuas hnyav dhau, lub teeb liab yuav dhau los ua qhov tsis muaj zog rau kev ntsuas kev ntseeg tau. Nyob rau hauv tas li ntawd, ib tug insertion mag meter uas bypasses cov yeeb nkab phab ntsa nkaus tej zaum yuav yog qhov zoo dua kev xaiv.
Xaus
Clamp- ntawm ultrasonic thiab insertion electromagnetic flow meter yog ob qho tib si pov thawj, siv thev naus laus zis - tab sis lawv tau tsim los ntawm cov qauv ntsuas sib txawv thiab cov ntawv thov sib txawv.
Clamp- ntawm ultrasonic yog lub ntuj xaiv rau tsis yog- ntxeem tau, tsis muaj - kaw, retrofit txaus ntsuas, tshwj xeeb tshaj yog nyob rau hauv tag nrho cov kav dej nqa cov dej huv. Nws ua tau zoo hauv kev tshawb fawb ib ntus, HVAC lub tsev kaw lus, kev tshuaj xyuas hluav taws xob, thiab txhua qhov haujlwm uas qhov yooj yim installation muaj txiaj ntsig tiag tiag. Rau ntau yam kev xaiv, tshawb xyuas pebultrasonic flow meter khoom kab.
Insertion electromagnetic flow meter tseem yog ib qho kev xaiv muaj zog thiab vam khom qhov chaw uas cov kua ua tau zoo thiab qhov ntsuas qhov ntsuas mus tas li nrog kev teeb tsa tsis raug. Hauv ntau qhov dej thiab cov ntawv thov hauv nroog, lawv muab qhov ntev ntev - tus nqi - tshwj xeeb tshaj yog nyob rau hauv cov kav dej loj. Saib pebCov khoom siv electromagnetic flow meterrau muaj configurations.
Qhov kev xaiv yog nyob ntawm cov khoom ua kua, cov kav dej, cov kev txwv ntawm kev teeb tsa, ncaj- khiav muaj, thiab cov hom phiaj ntsuas. Es tsis txhob nug seb lub tshuab twg yog qhov zoo tshaj plaws, nug seb qhov twg haum rau txoj haujlwm tiag - cov kua dej tiag tiag, cov yeeb nkab tiag tiag, thiab cov kev ua haujlwm tiag tiag - zoo dua.
Yog tias koj tsis paub tseeb tias lub tshuab twg haum rau koj daim ntawv thov,tiv tauj peb pab neeg ua haujlwm engineeringrau kev sab laj dawb. Peb tau pab ntau pua txoj haujlwm nrhiav qhov kev sib tw ntawm 'meter' thiab daim ntawv thov.
Cov ntawv nyeem thiab nyeem ntxiv
Cov ntaub ntawv sab nraud:
Emerson -Kev xav ntawm Magnetic Flow Meters
KOBOLD USA -Dab tsi yog Kev Ncaj Ncees rau Flow Meters?
ONICON -Ultrasonic Transit Time Technology piav qhia
Wikipedia -Ultrasonic Flow Meter
Analog Devices -Electromagnetic Flow Meters: Kev txiav txim siab tsim
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Tshuaj xyuas los ntawm:FLOWT Application Engineering Team |Hloov tshiab kawg:Peb Hlis 2026
