Doppler flow meter yog qhov kev xaiv zoo rau kev ntsuas cov dej khib nyiab, sludge, slurry, kua aerated, thiab lwm yam kua dej nyuaj. Tab sis nws tsis yog universal ultrasonic meter. Nws ua haujlwm tsuas yog thaum cov kua dej, cov yeeb nkab, thiab kev teeb tsa tso cai rau lub teeb liab ultrasonic los cuam tshuam los ntawm cov khoom txav los yog npuas.
Phau ntawv qhia no piav qhia txog qhov tseem ceeb Doppler flow meter yuav tsum, yuav txiav txim seb koj daim ntawv thov puas haum, thaum lwm qhov ntsuas ntsuas yuav zoo dua, thiab cov ntaub ntawv dab tsi los npaj ua ntej thov kev pom zoo.
Teb ceev: Thaum twg Koj Yuav Tsum Siv Doppler Flow Meter?
Siv Doppler flow meter thaum cov kua tsis zoo huv si thiab muaj cov khib nyiab tshem tawm, npuas huab cua, lossis lwm yam khoom siv cuam tshuam uas txav nrog cov ntws. Nws feem ntau suav hais tias yog dej khib nyiab, dej phwj tuaj, sludge, slurry, mining txheej txheem dej, thiab qee cov txheej txheem aerated kua.
Tsis txhob xaiv Doppler tsuas yog vim cov yeeb nkab loj lossis vim tias koj xav tau lub clamp- ntawm meter. Yog tias cov kua dej huv, cov yeeb nkab tsis puv, qhov nrawm dhau, lossis cov yeeb nkab phab ntsa thaiv cov teeb liab ultrasonic, Doppler ntsuas yuav tsis ruaj khov. Hauv cov xwm txheej no, atransit{0}} lub sij hawm ultrasonic flow meter, ibelectromagnetic flow meter, lossis lwm yam kev siv tshuab ntws yuav tsim nyog dua.
Doppler Ultrasonic Flow Meter yog dab tsi?
Doppler ultrasonic flow meter ntsuas qhov nrawm nrawm los ntawm kev xa cov teeb liab ultrasonic rau hauv cov kua thiab tau txais cov teeb liab cuam tshuam los ntawm cov khoom txav los yog npuas. Nws belongs rau tsev neeg dav ntawmultrasonic flow metertechnologies.
Ntau Doppler meters raug ntsia raws li clamp- ntawm cov twj paj nruag. Lub transducer yog mounted sab nraum cov yeeb nkab, yog li lub 'meter' feem ntau tuaj yeem ntsuas ntws yam tsis tau txiav cov yeeb nkab lossis tiv tauj cov kua dej ncaj qha. Rau cov ntawv thov uas kaw tsis yooj yim, aPortable Doppler Flow Metertuaj yeem muaj txiaj ntsig zoo rau kev kuaj xyuas ib ntus, tshawb xyuas qhov chaw, thiab daws teeb meem.
Qhov kev txwv tseem ceeb yog qhov kev ntsuas Doppler nyob ntawm qhov cuam tshuam lub suab. Endress+Hauser piav qhia txog kev ntsuas ultrasonic Doppler raws li ib txoj hauv kev uas tso tawm thiab cuam tshuam ultrasound zaus sib txawv nyob ntawm qhov nrawm ntawm cov khoom thauj los yog npuas. Koj tuaj yeem tshuaj xyuas lub hauv paus ntsiab lus hauv nws cov ntsiab lus ntawmUltrasonic Flow ntsuas txoj kev.
Yuav Ua Li Cas Doppler Flow Meter Ua Haujlwm
Doppler txoj cai yog qhov yooj yim hauv lub tswv yim. Thaum lub yoj ultrasonic xav los ntawm ib qho khoom txav, qhov zaus rov qab hloov. Hauv cov yeeb nkab, cov khoom txav no feem ntau yog tshem tawm cov khib nyiab, roj npuas, lossis lwm yam acoustic reflectors nqa los ntawm cov kua.
- Lub transducer xa cov teeb liab ultrasonic los ntawm cov yeeb nkab phab ntsa rau hauv cov kua.
- Particles los yog npuas nyob rau hauv cov kua qhia txog ib feem ntawm lub teeb liab.
- Cov teeb liab cuam tshuam rov qab nrog zaus hloov pauv.
- Lub 'meter' siv qhov zaus hloov pauv los ntsuas qhov nrawm nrawm.
- Lub 'meter' xam volumetric ntws los ntawm kev tshaj tawm thiab cov yeeb nkab loj.
Qhov no yog vim li cas Doppler meter feem ntau zoo dua rau cov dej qias neeg lossis cov dej aerated dua li cov dej ntshiab. Yog tias muaj cov reflectors tsawg dhau, lub 'meter' yuav tsis tau txais cov teeb liab rov qab ruaj khov.
Haum, Ceev faj, lossis Tsis Pom Zoo: Lub Rooj Txiav Txim Siab
| Daim ntawv thov xwm txheej | Haum rau Doppler | Kev Txiav Txim Siab |
|---|---|---|
| Cov dej khib nyiab los yog dej phwj tuaj nrog cov khib nyiab pov tseg | Feem ntau haum | Doppler feem ntau ua haujlwm zoo yog tias cov yeeb nkab puv thiab cov khib nyiab txav nrog cov kua. |
| Sludge los yog sludge | Feem ntau tsim nyog, tab sis txheeb xyuas | Tshawb xyuas seb cov khoom puas tseem raug ncua thaum lub sijhawm qis - ntws. Kev daws teeb meem tuaj yeem txo kev ntseeg tau. |
| Aerated kua | Ua tau | Npuas tuaj yeem muab kev xav, tab sis ntau dhau aeration yuav ua rau muaj suab nrov lossis tsis ruaj khov. |
| Cov dej huv lossis cov kua tshuaj ntshiab | Feem ntau tsis pom zoo | Cov kua dej huv yuav tsis muab cov reflectors txaus. Xav txog kev thauj mus los- lub sijhawm ntsuas ultrasonic. |
| Ib nrab ntim cov yeeb nkab | Tsis pom zoo rau tus qauv kaw - yeeb nkab Doppler | Qhov kaw -pipe meter ib txwm xav tias muaj cov kav dej puv. Siv cov yeeb nkab ib nrab los yog qhib -channel tov. |
| Hnyav corroded, lined, los yog scaled yeeb nkab | Ceev faj | Cov phab ntsa yeeb nkab tuaj yeem ua rau txoj kev acoustic tsis muaj zog. Kuaj teeb liab zoo ua ntej xaiv zaum kawg. |
Qhov tseem ceeb Doppler Flow Meter Requirements thiab Yuav Ua Li Cas Txheeb Xyuas Lawv
Txoj hauv kev zoo tshaj plaws los xaiv Doppler flow meter tsis yog nug xwb "Dab tsi yog cov yeeb nkab loj?" tab sis kom paub meej tias seb qhov ntsuas ntsuas puas tsim nyog. Cov kev cai hauv qab no yog qhov tseem ceeb tshaj plaws.
1. Cov kua yuav tsum muaj cov Reflectors tsim nyog
Doppler flow meter xav tau cov khoom txav, npuas, lossis cov khoom zoo sib xws hauv cov kua. Tsim nyog reflectors tsis yog "ib yam dab tsi hauv cov yeeb nkab." Lawv yuav tsum txav nrog cov kua thiab rov qab siv tau cov teeb liab ultrasonic.
| Yuav Ua Li Cas | Vim Li Cas Nws Tseem Ceeb | Yuav Ua Li Cas Yog Nws Ua Tsis Tau |
|---|---|---|
| Suspended solids, npuas, los yog aeration | Lawv muab cov teeb liab cuam tshuam siv rau kev ntsuas Doppler tshaj tawm. | Yog tias cov kua huv huv, xav txog kev thauj mus los - lub sijhawm ultrasonic tshuab. |
| Seb cov khib nyiab nyob twj ywm | Cov khib nyiab pov tseg tsis sawv cev qhov nrawm nrawm thiab tuaj yeem ua rau kev nyeem tsis ruaj khov. | Txheeb xyuas qis- lub sijhawm ntws thiab xav txog lwm lub 'meter' yog tias cov khib nyiab hnyav heev. |
| Seb cov npuas puas zoo ib yam | Qee cov npuas pab cuam tshuam, tab sis tsis ruaj khov aeration tuaj yeem ntxiv suab nrov. | Txheeb xyuas cov teeb liab ruaj khov thaum lub sijhawm ua haujlwm ib txwm muaj, tsis yog thaum lub sijhawm sim luv xwb. |
Rau kev siv dej huv, aclamp- ntawm ultrasonic flow meterraws li kev thauj mus los- lub sij hawm ntsuas feem ntau yog qhov haum zoo dua li Doppler.
2. Cov yeeb nkab yuav tsum puv
Feem ntau kaw - yeeb nkab Doppler flow meter xam qhov ntws los ntawm kev sib txuas ntsuas qhov nrawm nrog cov yeeb nkab hla - cheeb tsam ntu. Yog tias cov yeeb nkab tsuas yog ib nrab puv nkaus xwb, lub ntsuas hluav taws xob yuav siv qhov chaw ntws tsis raug thiab ua rau cov txiaj ntsig tsis raug.
Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv cov kab nrib pleb, qis - cov kab dej khib nyiab, lossis cov kav dej uas khiav puv nkaus thaum xav tau. Yog tias cov yeeb nkab tsis tu ncua, tsis txhob kho tus qauv clamp- ntawm Doppler meter raws li lub ntsaws - thiab - ua si daws.
3. Flow Velocity Yuav tsum nyob hauv qhov ntsuas qhov siab
Txhua tus qauv muaj qhov ntsuas qhov nrawm, thiab qhov tseeb qhov sib txawv los ntawm cov chaw tsim khoom thiab cov ntsuas ntsuas. Ib txwm muab piv rau qhov xav tau yam tsawg kawg nkaus, qhov qub, thiab qhov siab tshaj plaws ntws nrog cov ntaub ntawv ua ntej xaiv.
Tsawg tshaj tawm yog ib qho teeb meem tshwm sim hauv slurry thiab dej khib nyiab. Thaum lub nrawm poob qis dhau lawm, cov khoom khib nyiab tuaj yeem nyob, cov npuas yuav tsis faib sib npaug, thiab cov teeb liab doppler tuaj yeem ua tsis muaj zog. Yog tias koj cov txheej txheem muaj ib hnub muaj zog- hmo ntuj hloov pauv, xyuas qhov qis qis qis qis, tsis yog qhov nruab nrab ntws xwb.
Rau kev nyeem ntawv ntxiv txog qhov kev tshaj tawm thiab qhov ntws ntws cuam tshuam li cas rau kev ntsuas, saib nplooj ntawv ntsig txog noUltrasonic flow meter raug thiab txaus tus nqi.
4. Cov khoom siv yeeb nkab, phab ntsa, thiab hauv ob sab phlu yuav tsum tso cai rau kev sib kis
Ib qho clamp- ntawm Doppler meter xa ultrasonic zog los ntawm cov yeeb nkab phab ntsa. Txoj kev acoustic tuaj yeem cuam tshuam los ntawm cov khoom siv yeeb nkab, phab ntsa tuab, sab hauv hauv ob sab phlu, txheej, corrosion, nplai, thiab qhov chaw.
Ua ntej installation, paub meej tias cov khoom siv yeeb nkab, sab nraud txoj kab uas hla, phab ntsa thickness, cov ntaub ntawv liner yog tias muaj, thiab muaj qhov chaw mounting. Yog hais tias cov yeeb nkab sab nraud yog ntxhib, pleev xim rau tsis sib xws, xeb, los yog scaled, ntxuav lub mounting cheeb tsam ua ntej txhim kho lub transducer.
Thaum daim ntawv thov yuav tsum tau mounting sab nraud, atsis yog -intrusive flow metertuaj yeem txo cov txheej txheem cuam tshuam, tab sis nws tseem nyob ntawm qhov zoo acoustic coupling ntawm lub sensor thiab cov yeeb nkab.
5. Cov Ntsiab Lus Txhim Kho yuav tsum muaj qhov profile ntws ruaj khov
Kev cuam tshuam ntws tuaj yeem txo qhov ntsuas kev ruaj ntseg. Tsis txhob txhim kho lub sensor tam sim ntawd tom qab lub twj tso kua mis, li qub, lub luj tshib, reducers, lossis tswj cov khoom siv. Cov khoom siv no tuaj yeem tsim kev swirl, turbulence, los yog tsis sib xws tshaj tawm.
Yog tias lub vev xaib tau txwv cov yeeb nkab ncaj nraim, xaiv cov seem uas muaj nyob ntsiag to thiab txheeb xyuas cov teeb liab zoo tom qab kev teeb tsa. Tsis txhob cia siab rau kev nkag mus rau lub cev lossis kev yooj yim xwb. Yog xav paub ntxiv txog kev taw qhia kev teeb tsa, saib nplooj ntawv cuam tshuam ntawmUltrasonic flow meter installation cov kauj ruam.
6. Cov teeb liab zoo yuav tsum tau kuaj xyuas tom qab kev teeb tsa
Kev xaiv raug tsis xaus thaum lub transducer mounted. Tom qab kev teeb tsa, xyuas lub teeb liab lub zog, kev nyeem ntawv ruaj khov, kev taw qhia ntws, xoom- tus cwj pwm ntws yog tias muaj, thiab seb qhov kev nyeem ntawv teb puas tsim nyog rau kev hloov pauv.
Ib txoj haujlwm tseem ceeb ntawm kev ua haujlwm yog los sau cov hauv paus ntsiab lus: cov yeeb nkab tsis, qhov chaw sensor, teeb pom kev zoo, kev nyeem ntawv zoo, thiab txhua yam txheej txheem tau pom thaum teeb tsa. Qhov no ua rau kev saib xyuas yav tom ntej thiab kev daws teeb meem yooj yim dua.
Cov ntawv thov zoo tshaj plaws rau Doppler Flow Meters
Doppler flow meter muaj zog tshaj qhov uas cov kua yog qias neeg, opaque, aerated, los yog abrasive, thiab qhov twg cov neeg siv xav tau sab nraud los yog tsis yog -intrusive ntsuas.
| Daim ntawv thov | Haum Thaum | Ceev faj Yog |
|---|---|---|
| Cov dej khib nyiab | Cov yeeb nkab yog tag nrho thiab cov kua muaj cov khib nyiab los yog npuas. | Hmo ntuj- lub sij hawm qis ntws ua rau cov khib nyiab los yog cov yeeb nkab ua ib nrab puv. |
| Dej phwj tuaj | Cov kua yog qias neeg txaus los muab kev xav ruaj khov. | Roj, hnyav deposits, los yog inconsistent flow tej yam kev mob cuam tshuam rau txoj kev acoustic. |
| Sludge | Cov khoom txav nrog cov kua thiab nyob twj ywm raug tshem tawm. | Cov sludge yog tuab heev, stratified, los yog nws yooj yim mus daws. |
| Slurry | Daim ntawv thov xav tau tsis yog - ntsuas ntsuas kom tsis txhob hnav lossis txiav cov yeeb nkab. | Cov khoom concentration hloov pauv zoo heev lossis abrasive buildup cuam tshuam rau cov yeeb nkab phab ntsa. |
| Mining txheej txheem dej | Cov kua nqa cov khoom raug tshem tawm thiab cov yeeb nkab tuaj yeem xa cov cim ultrasonic. | Cov yeeb nkab hauv ob sab phlu, nplai, lossis kev co ua rau cov teeb liab tsis ruaj khov. |
| Aerated txheej txheem kua | Cov npuas yog tam sim no thiab tsim nyog faib. | Aeration tsis ruaj khov thiab ua rau muaj suab nrov. |
Thaum Doppler Flow Meter yuav tsis ua haujlwm ntseeg tau
Doppler meter tuaj yeem yog qhov kev xaiv tsis raug hauv cov xwm txheej hauv qab no:
- Cov kua yog huv heev thiab muaj yuav luag tsis muaj cov khib nyiab los yog npuas.
- Cov yeeb nkab tsis puv thaum lub sijhawm ua haujlwm.
- Qhov tshaj tawm yog qis dua qhov ntsuas qhov ntsuas qhov ntsuas.
- Cov khoom nyob rau hauv qab es tsis txhob txav nrog cov kua.
- Cov yeeb nkab phab ntsa, hauv ob sab phlu, corrosion, los yog txheej blocks ultrasonic kis tau tus mob.
- Lub installation taw tes yog ze rau qhov muaj zog txaus cuam tshuam.
- Daim ntawv thov yuav tsum muaj qhov tseeb siab nyob rau hauv huv huv - kua dej.
Hauv cov kua dej huv, kev thauj mus los - lub sijhawm ntsuas ultrasonic feem ntau yog thawj qhov kev xaiv. Hauv cov dej khib nyiab lossis cov txheej txheem dej, amag meter flow meter rau dejkuj yuav tsim nyog muab piv. Rau qhov kev sib piv dav dav, saib phau ntawv qhia no rauUltrasonic flow meter vs electromagnetic flow meter.
Doppler vs Transit-Lub Sijhawm vs Magnetic Flow Meter
Doppler thiab kev thauj mus los- lub sijhawm ntsuas ntsuas yog ob qho tib si ultrasonic, tab sis lawv haum rau cov kua sib txawv. DwyerOmega kev sib piv ntawmDoppler vs transit -time ultrasonic flow meterkuj tseem hais ntxiv tias qhov kev xaiv zoo yog nyob ntawm qhov tseeb ntawm cov kua dej thiab muaj cov khoom siv los yog npuas.
| Qhov xwm txheej | Doppler Ultrasonic Cov | Transit-Lub Sijhawm Ultrasonic | Electromagnetic |
|---|---|---|---|
| Hom kua zoo tshaj plaws | qias neeg, aerated, los yog particle-muaj kua | Ntxuav thiab acoustic ruaj khov kua | Cov khoom siv hluav taws xob xws li dej thiab dej khib nyiab ntau |
| Xav tau cov khoom los yog npuas? | Yog, feem ntau | Tsis yog, feem ntau nyiam cov kua dej huv | Tsis yog, tab sis cov kua yuav tsum yog conductive |
| Installation style | Feem ntau clamp- rau lossis nqa tau | Clamp-on, insertion, or inline | Feem ntau inline lossis ntxig |
| Puas zoo rau cov dej huv? | Feem ntau tsis zoo tagnrho | Feem ntau haum | Haum yog hais tias conductivity thiab installation tej yam kev mob match |
| Puas zoo rau cov dej khib nyiab? | Feem ntau haum yog tias tag nrho cov yeeb nkab thiab cov teeb liab ruaj khov | Tej zaum yuav tawm tsam nrog ntau cov khib nyiab lossis npuas | Feem ntau haum yog cov kua yog conductive |
Raws li txoj cai yooj yim, xaiv Doppler thaum cov kua muab cov khoom txav txav, xaiv qhov kev thauj mus los - lub sijhawm thaum cov kua huv si, thiab sib piv cov ntsuas sib nqus dej thaum cov kua ua kua thiab qhov ntsuas inline lossis ntxig ntsuas tau txais.
Installation thiab Commissioning Workflow
Doppler meter yuav tsum tau commissioned ua ib qho kev ntsuas, tsis yog txuas rau cov yeeb nkab. Cov kev ua haujlwm hauv qab no yuav pab txo qis kev ua yuam kev.
Kauj ruam 1: Sau cov ntaub ntawv ntawm qhov chaw
Sau cov kua hom, tshem tawm cov khib nyiab los yog npuas, cov khoom siv yeeb nkab, sab nraud txoj kab uas hla, phab ntsa thickness, liner, yam tsawg kawg nkaus txaus, ib txwm txaus, siab tshaj plaws txaus, kub, siab, thiab seb cov yeeb nkab nyob twj ywm tag nrho.
Kauj ruam 2: Xaiv qhov ntsuas qhov zoo tshaj plaws
Xaiv qhov chaw uas muaj qhov ruaj khov txaus profile, txaus cov yeeb nkab ncaj nraim qhov twg ua tau, thiab muaj kev nyab xeeb rau kev teeb tsa thiab kev saib xyuas. Tsis txhob muab cov twj tso kua mis, lub valve, lub luj tshib, lossis cov reducers tam sim ntawd.
Kauj Ruam 3: Npaj cov yeeb nkab nto
Ntxuav qhov chaw mounting kom lub sensor tuaj yeem ua kom zoo acoustic. Tshem tawm cov xeb xoob, av, cov xim tuab tuab, lossis cov nplais qhov chaw uas lub tshuab hloov pauv yuav raug teeb tsa.
Kauj Ruam 4: Mount lub Sensor Ua tib zoo
Siv cov khoom sib txuas kom raug, kho qhov hloov pauv raws li qhov yuav tsum tau ua los ntawm lub ntsuas, thiab ua kom ruaj khov. Rau cov kav dej kab rov tav, tsis txhob hnov qab txog qhov chaw nyob qhov twg cov pa roj nyob rau saum toj lossis cov khoom nyob hauv qab yuav ua rau muaj lub teeb liab tshwj tsis yog cov chaw tsim khoom pom zoo.
Kauj Ruam 5: Tshawb xyuas kev nyeem ntawv ruaj khov
Xyuas lub teeb liab lub zog, ntws kev taw qhia, xoom- ntws qhov xwm txheej yog tias ua tau, thiab nyeem cov lus teb raws li kev ua haujlwm ib txwm muaj. Yog tias kev nyeem ntawv hloov pauv sai yam tsis muaj cov txheej txheem hloov pauv, tshuaj xyuas kev sib txuas, cov kav dej tsis sib haum, qhov ntsuas qhov ntsuas, thiab cov kua dej.
Kauj Ruam 6: Cov ntaub ntawv hauv paus
Khaws cov ntaub ntawv ntawm kev teeb tsa txoj haujlwm, cov yeeb nkab teeb tsa, cov teeb liab zoo ib yam, cov dej ntws ib txwm muaj, thiab txhua qhov kev txwv pom thaum lub sijhawm ua haujlwm. Cov hauv paus ntsiab lus no muaj txiaj ntsig zoo rau yav tom ntej kev pabcuam thiab kev ntsuas ntsuas ntsuas. Rau cov lus qhia txog kev saib xyuas, saibOb txoj kev calibration rau ultrasonic flow meters.
Kev daws teeb meem tsis muaj zog lossis tsis ruaj khov Doppler Readings
Yog hais tias lub 'meter' tsis tsim kev nyeem ntawv ruaj khov, tsis txhob xav tias qhov ntsuas tsis raug. Feem ntau, qhov ua rau yog daim ntawv thov kev mob lossis qhov taw qhia kev teeb tsa.
| Cov tsos mob | Ua Tau | Tswv yim kho |
|---|---|---|
| Tsis muaj teeb liab lossis tsis muaj zog heev | Cov kua dej huv huv, kev sib txuas tsis zoo, cov yeeb nkab phab ntsa tsis zoo, lossis qhov tsis ncaj ncees lawm sensor txoj hauj lwm | Txheeb xyuas cov kua ua kua, rov ua cov couplant, ntxuav cov yeeb nkab saum npoo, thiab sim lwm qhov chaw. |
| Nyeem ntawv dhia yam tsis muaj kev hloov pauv | Tsis ruaj tsis khov aeration, turbulence, tsis zoo mounting, los yog cov yeeb nkab tsis raug | Txheeb xyuas cov ntaub ntawv yeeb nkab, txhim kho mounting, txav deb ntawm kev cuam tshuam, thiab sib piv nrog cov txheej txheem txheej txheem. |
| Flow nyeem thaum kab yuav tsum tau nres | Zero offset, vibration, hluav taws xob nrov, los yog residual txav | Tshawb xyuas xoom-txoj kev ntws, hauv av, cable routing, thiab qhov chaw vibration. |
| Tsawg- kev nyeem ntawv tsis txaus ntseeg | Kev nrawm yog qis dua qhov ntsuas qhov ruaj khov lossis cov khoom khib nyiab pib daws | Txheeb xyuas qhov xwm txheej tsawg kawg nkaus thiab paub meej tias puas xav tau lwm yam thev naus laus zis. |
| Kev nyeem tsis pom zoo nrog lwm lub 'meter' | Kev ntsuas qhov sib txawv, qhov tsis raug ntawm cov yeeb nkab tsis zoo, qhov dej tsis zoo, lossis qhov teeb meem calibration | Tshawb xyuas kev teeb tsa, sib piv nyob rau hauv qhov chaw ruaj khov, thiab txheeb xyuas qhov teeb tsa 'meter' tiv thaiv tus paub siv. |
Yog xav paub ntxiv txog cov tswv yim daws teeb meem, saib phau ntawv qhia ntsig txog nokev daws teeb meem rau cov teeb meem nrog ultrasonic flow meters. Engineering ToolBox tseem muab cov lus piav qhia luv luv ntawmUltrasonic Doppler Flow Meter txoj caithiab yuav ua li cas Doppler ntsuas siv reflected ultrasonic suab.
Cov ntaub ntawv los npaj ua ntej thov kev pom zoo
Txhawm rau pab tus neeg muag khoom txiav txim seb Doppler puas tsim nyog, npaj cov ntaub ntawv hauv qab no ua ntej xa cov lus nug:
- Lub npe ntawm cov kua thiab cov txheej txheem piav qhia
- Seb cov kua muaj cov khib nyiab tshem tawm, npuas, sludge, lossis slurry
- Seb cov yeeb nkab ib txwm puv
- Cov khoom siv yeeb nkab, sab nraud txoj kab uas hla, phab ntsa thickness, thiab cov ntaub ntawv liner
- Yam tsawg kawg nkaus, ib txwm, thiab siab tshaj plaws ntws los yog tshaj tawm
- Ua kua kub thiab siab
- Installation qhov chaw duab yog muaj
- Muaj cov yeeb nkab ncaj nraim mus rau sab saud thiab hauv qab
- Seb lub 'meter' yuav tsum portable, tsau, clamp-on, insertion, los yog inline
- Kev cia siab rau qhov tseeb thiab seb lub ntsuas puas yog rau cov txheej txheem tswj, saib xyuas, lossis kuaj xyuas ib ntus
Yog tias koj tab tom sib piv ntau cov thev naus laus zis ntws, koj tuaj yeem tshawb tag nrhoflow meter khoom ntau yamua ntej xa koj cov cai. Rau ib qhov project-cov lus pom zoo tshwj xeeb, xa cov ntaub ntawv ntawm qhov chaw los ntawmflow meter nugnplooj.
FAQ
Q: Dab tsi yog qhov zoo tshaj plaws cable rau solar panels?
A: Rau DC sab ntawm PV system, siv PV- ntsuas hnub ci DC cable lossis PV xaim uas ua tau raws li qhov xav tau qhov hluav taws xob, qhov kub thiab txias, UV tiv thaiv thiab ntawv pov thawj rau lub lag luam project.
Q: Qhov loj npaum li cas hnub ci cable kuv yuav tsum siv?
A: Cable loj nyob ntawm qhov tam sim no, voltage poob, txoj kev ntev, cov khoom siv hluav taws xob, ambient kub, pab pawg thiab kev teeb tsa. Tsis txhob xaiv cable loj tsuas yog los ntawm tus cwj pwm.
Q: Puas yog H1Z2Z2-K zoo dua PV1-F?
A: H1Z2Z2-K feem ntau yog siv nyob rau hauv niaj hnub European thiab IEC-raws li PV tej yaam num, thaum PV1-F tej zaum yuav tseem tshwm nyob rau hauv cov laus los yog project-specific specifications. Qhov kev xaiv zoo dua yog nyob ntawm qhov project tus qauv thiab kev lees paub hauv zos.
Q: Dab tsi yog qhov txawv ntawm PV hlau thiab hnub ci cable?
A: Cov ntsiab lus yog qee zaum siv xoob, tab sis hauv kev yuav khoom lawv yuav tsum tau khi rau cov qauv thiab kev ua lag luam. UL PV Hlau yog muaj nyob rau hauv North American tej yaam num, thaum H1Z2Z2-K hnub ci cable yog muaj nyob rau hauv IEC los yog European specifications.
Q: Kuv puas tuaj yeem siv cov xaim hluav taws xob ib txwm siv rau hnub ci vaj huam sib luag?
A: Rau sab nraum zoov PV DC circuits, ib txwm hluav taws xob xaim feem ntau tsis yog qhov tsim nyog hloov tshwj tsis yog tias qhov project tsim thiab cov cai hauv zos kom meej meej tso cai. PV cables yog tsim rau hnub ci, huab cua thiab PV kev ua haujlwm.
Q: Vim li cas lub hnub ci cables feem ntau liab thiab dub?
A: Liab thiab dub pab txheeb xyuas DC polarity. Liab feem ntau yog siv rau qhov zoo thiab dub rau qhov tsis zoo, tab sis cov neeg tsim khoom yuav tsum ua raws li qhov project kos duab, cov ntawv lo thiab kev coj ua hauv zos.
Q: Puas yog lub hnub ci txuas txuas tseem ceeb li cov cable?
A: Yog. Ib qho kev sib txuas tsis zoo lossis crimp tsis zoo tuaj yeem tsim kom sov, dej nkag los yog tsis ua haujlwm. Nco ntsoov xyuas connector compatibility, ratings thiab installation cov lus qhia.
Q: Lub hnub ci cables puas tuaj yeem faus hauv av?
A: Tsuas yog siv lub cable hauv av yog tias nws tsim, sheath, tiv thaiv txoj kev thiab qhov project tus qauv tso cai rau nws. Qee cov cables xav tau cov kav dej lossis cov khoom siv tiv thaiv ntxiv.
Q: Puas yog cov phiaj xwm hnub ci xav tau kev sib txuas lus cable?
A: Ntau cov haujlwm PV xav tau kev sib txuas lus cable rau kev saib xyuas inverter, cov ntaub ntawv loggers, chaw nres tsheb huab cua, trackers, tswb thiab SCADA systems. Cov phiaj xwm loj dua yuav xav tau cov ntaub ntawv muaj zog ntau dua li cov tshuab me me.
Q: Kuv tuaj yeem txo qhov kev poob qis hauv lub hnub ci cable li cas?
A: Koj tuaj yeem txo qhov kev poob qis los ntawm kev ua kom luv luv ntawm txoj kev cable, nce tus neeg xyuas pib loj, txo qhov tam sim no ntawm ib lub cable uas tus qauv tso cai, lossis kho cov txheej txheem tsim raws li kev taw qhia engineering.
Xaus: Xaiv Doppler Raws li Daim Ntawv Thov Tag Nrho, Tsis yog Yeeb Nkab Loj Ib Leeg
Doppler flow meter tuaj yeem ua tau zoo rau cov dej khib nyiab, sludge, slurry, kua aerated, thiab lwm yam kua dej nyuaj. Nws qhov txiaj ntsig tseem ceeb yog tias nws tuaj yeem ntsuas qhov qias neeg lossis cov khoom siv - muaj cov kua dej, feem ntau nrog lub clamp- ntawm lossis kev teeb tsa portable.
Txawm li cas los xij, kev ntsuas Doppler tuaj yeem ntseeg tau tsuas yog thaum cov kua muaj qhov tsim nyog txav, cov yeeb nkab puv, qhov nrawm yog nyob rau hauv qhov ntsuas qhov ntau, cov yeeb nkab phab ntsa tuaj yeem xa cov teeb liab ultrasonic, thiab qhov chaw teeb tsa muab qhov chaw ruaj khov.
Ua ntej xaiv ib lub 'meter', sib piv cov kua dej, cov yeeb nkab mob, ib puag ncig kev teeb tsa, thiab kev cia siab raug. Yog hais tias cov kua huv si, kev thauj mus los - lub sij hawm ntsuas ultrasonic yuav zoo dua. Yog hais tias cov kua yog conductive thiab inline installation tau txais, electromagnetic ntsuas kuj yuav tsim nyog xav txog. Yog tias daim ntawv thov qias neeg, tag nrho - yeeb nkab, thiab acoustic haum, Doppler tuaj yeem yog qhov ua tau zoo thiab tsis yog - txoj hauv kev los ntsuas qhov ntws.
