Yuav Ua Li Cas Xaiv Qhov Ntsuas Electromagnetic Flow Meter Yog?

Thaum xaiv ib qholub ntsuas hluav taws xob(EMF), yuav tsum xav txog ntau yam tseem ceeb kom ntseeg tau tias kev ntsuas raug thiab kev ntseeg tau mus sij hawm ntev:

1. Cov Kev Cai Nruab Nrab
   Cov kua dej yuav tsum muaj conductive (feem ntau ≥5 μS/cm), xws li:

• Dej (dej los ntawm cov kais, dej phwj tuaj, dej hiav txwv)
• Cov kua qaub thiab alkaline (kev lag luam tshuaj lom neeg)
• Cov khoom siv ua kua nplaum, cov khoom siv pulp, thiab cov khoom siv ua kua nplaum (cov khoom sib xyaw ua kua thiab cov khoom siv hluav taws xob)

Nws tsis haum rau cov kua dej uas tsis conductive, xws li:

1. • Dej ntshiab, dej distilled
   • Cov roj (roj av, roj av, diesel)
   • Qee cov kuab tshuaj organic (piv txwv li, cawv, benzene)
2. Txoj Kab Uas hla Yeeb Nkab thiab Tus Nqi Nqus
   Xaiv lub ntsuas dej uas phim qhov ntau thiab tsawg ntawm cov dej ntws. Feem ntau, qhov ceev ntawm cov dej ntws yog 1–5 m/s. Qhov ceev ntawm cov dej ntws qis dhau yuav cuam tshuam rau qhov tseeb ntawm kev ntsuas, thaum qhov ceev ntawm cov dej ntws siab dhau yuav ua rau lub siab poob ntau dua.
   Lub taub ntawm cov yeeb nkab yuav tsum sib npaug li qhov loj ntawm lub ntsuas dej. Yog tias qhov ceev ntawm cov dej ntws qis dhau, xaiv lub taub me dua kom txhim kho kev ruaj khov ntawm kev ntsuas.
3. Kev Xaiv Khoom Siv Electrode thiab Lining
   Cov ntaub ntawv rau cov electrodes thiab lining yuav tsum tau xaiv raws li qhov corrosiveness, kub, thiab hnav ntawm cov kua dej:

   Khoom siv	Nruab Nrab Tsim Nyog
   Cov Khoom Siv Hluav Taws Xob
   316L Stainless hlau	Cov dej phwj, cov kua dej tsis muaj zog
   Tantalum (Ta)	Cov kua qaub muaj zog (piv txwv li, nitric acid, sulfuric acid)
   Platinum (Pt)	Cov kua uas muaj zog heev, kub heev
   Titanium (Ti)	Dej hiav txwv, cov kua uas muaj chloride
   Cov Khoom Siv Hauv Sab Hauv
   Roj Hmab	Cov dej dav dav, dej phwj tuaj, slurry
   PTFE (Teflon)	Cov kua qaub muaj zog, cov alkali muaj zog
   Neoprene	Cov kua uas muaj cov khoom me me, cov ntxhia slurries

4. Cov Cai rau Kev Teeb tsa
   • Qhov Ntev ntawm Cov Yeeb Nkab Ncaj: Qhov ntev uas pom zoo ua ntej lub ntsuas dej yog ≥5 npaug ntawm txoj kab uas hla ntawm cov yeeb nkab thiab ≥2 npaug tom qab lub ntsuas kom tsis txhob muaj kev cuam tshuam rau cov xwm txheej ntws.
   • Cov Yeeb Nkab Dej Tag Nrho: Lub ntsuas dej yuav tsum tau teeb tsa rau hauv qhov seem ntawm cov yeeb nkab dej uas puv tag nrho kom tiv thaiv cov pa npuas thiab cov yeeb nkab khoob kom tsis txhob cuam tshuam rau qhov tseeb ntawm kev ntsuas.
   • Tej Yam Ib Puag Ncig: Tsis txhob muaj kev cuam tshuam hluav taws xob los ntawm cov chaw xws li cov tsav hloov pauv zaus lossis cov motors; kev sib txuas av kom zoo yog qhov tseem ceeb.
5. Cov Teeb Liab Tawm thiab Cov Txheej Txheem Sib Txuas Lus
   • Cov Teeb Liab Analog: 4-20mA (cov teeb liab kev lag luam feem ntau)
   • Kev Sib Txuas Lus DigitalKev sib txuas lus: RS485 (Modbus), HART, Profibus
   • Cov zis ntawm lub zog: Haum rau kev siv metering
6. Kev Muab Fais Fab
   • AC 220V/110V (rau kev teeb tsa ruaj khov)
   • DC 24V (rau cov tshuab automation hauv kev lag luam)
   • Siv roj teeb (rau cov chaw nyob deb uas tsis muaj hluav taws xob sab nraud)
7. Lwm Cov Kev Cai Tshwj Xeeb
   • Kev Ntsuas Ob Txoj KevYog tias xav tau kev ntsuas dej ntws rov qab, xaiv tus qauv uas txhawb nqa kev ntsuas ob txoj kev.
   • Kev Ntsuas Kev Tiv ThaivIP65 (ib puag ncig dav dav), IP67/IP68 (ib puag ncig sab nraum zoov lossis hauv qab dej).
   • Cov Kev Cai Tiv Thaiv Kev TawgRau kev siv hauv petrochemical lossis thaj chaw muaj kev phom sij, yuav tsum xaiv lub ntsuas dej uas tsis tawg.

Kev xav txog cov yam no yuav pab koj xaiv lub ntsuas hluav taws xob electromagnetic flow meter uas haum rau koj daim ntawv thov.