Cov Hom Phiaj ntawm Cov Ntsuas Hluav Taws Xob Electromagnetic Flow Meters

Kev Taw Qhia

Cov ntsuas hluav taws xob electromagneticyog qhov tseem ceebcov twj paj nruagrau kev ntsuas qhov ntws ntawm cov kua dej conductive hauv ntau daim ntawv thov kev lag luam. Lub txheej ntawm lub ntsuas hluav taws xob electromagnetic ua haujlwm ntau yam tseem ceeb. Nws ua haujlwm ua ib qho thaiv ntawm cov electrodes thiab cov kua dej, tiv thaiv cov electrodes los ntawm kev xeb thiab xyuas kom meej qhov ntsuas raug. Tsis tas li ntawd, nws tiv thaiv phab ntsa sab hauv ntawm lub cev ntsuas ntws los ntawm cov teebmeem uas yuav ua rau muaj kev puas tsuaj lossis kev xeb ntawm cov kua dej. Ntau hom txheej sib txawv yog tsim los ua kom tau raws li ntau yam kev xav tau ntawm ntau yam kua dej thiab cov xwm txheej ua haujlwm.

Cov Khoom Siv Hauv Sab Hauv

1. Cov roj hmab Linings

 

• Roj Hmab Ntuj
  • Cov roj hmab ntuj yog ib qho kev xaiv uas pheej yig thiab siv tau zoo. Nws muaj kev ywj pheej zoo, uas ua rau nws tiv taus qee qhov kev ntxhov siab thaum lub sijhawm teeb tsa thiab ua haujlwm. Nws tsim nyog rau kev ntsuas cov kua dej uas muaj qhov kub tsawg, feem ntau txog li 60 - 80 ° C. Cov roj hmab ntuj kuj tiv taus ntau yam dej uas siv ntau, ua rau nws yog ib qho kev xaiv nrov rau kev siv hauv kev lag luam dej thiab kev kho dej khib nyiab. Piv txwv li, hauv lub chaw kho dej khib nyiab hauv nroog, cov ntsuas hluav taws xob electromagnetic uas muaj roj hmab ntuj siv tuaj yeem siv los ntsuas qhov ntws ntawm cov dej khib nyiab nyoos, qhov twg cov kua dej yuav muaj qee cov khoom seem thiab ntau yam tshuaj lom neeg ntawm qhov kub nruab nrab.
• Neoprene roj hmab
  • Cov roj hmab neoprene muaj kev tiv thaiv tshuaj lom neeg zoo dua li cov roj hmab ntuj. Nws tuaj yeem tiv taus cov roj, roj av, thiab ntau yam tshuaj lom neeg. Cov ntsuas hluav taws xob electromagnetic flow meters uas muaj neoprene feem ntau siv rau hauv kev siv hauv kev lag luam uas cov kua dej yuav kov cov tshuaj no. Piv txwv li, hauv kev lag luam tsim tsheb, thaum ntsuas qhov ntws ntawm cov kua dej txias uas yuav muaj cov tshuaj tiv thaiv khov thiab lwm yam khoom ntxiv, cov ntaub neoprene muab kev tiv thaiv zoo. Qhov kub thiab txias rau cov ntsuas neoprene feem ntau siab dua li cov roj hmab ntuj, txog li 80 - 100 ° C.
• Roj Hmab Butyl
  • Cov roj hmab butyl muaj kev tiv thaiv zoo heev rau cov pa roj thiab cov dej pa. Nws tiv taus kev tawm tsam tshuaj lom neeg, tshwj xeeb tshaj yog los ntawm cov kua qaub thiab alkalis. Qhov no ua rau nws haum rau cov ntawv thov uas cov kua dej muaj corrosive heev. Hauv kev lag luam tshuaj lom neeg, thaum ntsuas qhov ntws ntawm cov kua qaub lossis alkali muaj zog, cov ntsuas hluav taws xob butyl-lined yog qhov kev xaiv zoo tshaj plaws. Lawv tuaj yeem ua haujlwm ntawm qhov kub ntawm - 40 ° C txog 120 ° C, muab lub qhov rais kub ua haujlwm dav rau ntau yam txheej txheem kev lag luam.

2. Cov Yas Sab Hauv

 

• Polyvinyl Chloride (PVC)
  • PVC yog ib yam khoom siv yas uas siv dav dav. Nws pheej yig thiab tiv taus tshuaj lom neeg zoo. Cov ntsuas hluav taws xob electromagnetic flow meters uas muaj PVC yog qhov tsim nyog rau kev siv hauv kev lag luam khoom noj thiab dej haus, vim PVC tsis muaj tshuaj lom thiab ua raws li cov qauv kev tu cev. Piv txwv li, hauv lub Hoobkas tsim kua txiv hmab txiv ntoo, cov ntsuas hluav taws xob uas muaj PVC siv tau los ntsuas qhov ntws ntawm kua txiv hmab txiv ntoo thaum lub sijhawm tsim khoom. Txawm li cas los xij, PVC muaj qhov kub thiab txias tsawg, feem ntau yog li ntawm 60 - 70 ° C.
• Polyethylene (PE)
  • PE, tshwj xeeb tshaj yog polyethylene siab (HDPE), paub txog nws qhov tawv thiab tshuaj tiv thaiv. HDPE - kab electromagnetic flow meters feem ntau siv rau hauv cov ntawv thov uas cov kua dej yuav muaj cov khoom sib txhuam. Hauv kev lag luam mining, thaum ntsuas qhov ntws ntawm slurry (kev sib xyaw ntawm dej thiab cov khoom khov), HDPE kab tuaj yeem tiv taus qhov kev sib txhuam los ntawm cov khoom khov. PE - kab meters tuaj yeem ua haujlwm ntawm qhov kub txog li 80 - 90 ° C, nyob ntawm qib tshwj xeeb ntawm polyethylene.
• Polytetrafluoroethylene (PTFE)
  • PTFE yog ib hom yas ua tau zoo heev uas tiv taus tshuaj lom neeg zoo heev. Nws tuaj yeem tiv taus yuav luag txhua yam tshuaj lom neeg, suav nrog cov kua qaub muaj zog, alkalis, thiab cov kuab tshuaj organic. Cov ntsuas hluav taws xob electromagnetic flow meters uas muaj PTFE siv rau hauv qhov chaw muaj xeb heev, xws li hauv kev lag luam tshuaj thaum ntsuas cov tshuaj lom neeg uas muaj kev cuam tshuam ntau. PTFE kuj muaj qhov sib txhuam qis heev, uas pab txo qhov lo rau ntawm cov kua dej, ua kom ntseeg tau tias qhov ntsuas ntws raug. Qhov kub ntawm cov ntsuas PTFE uas muaj PTFE siv dav heev, txij li - 200 ° C txog 260 ° C, ua rau nws haum rau ntau yam kev siv uas rhiab heev rau qhov kub thiab txias.

3. Cov Khoom Siv Ua Los Ntawm Cov Khoom Uas ...

 

• Alumina Ceramics
  • Alumina ceramics yog cov khoom siv uas tawv heev thiab tsis yooj yim hnav. Lawv zoo tagnrho rau cov ntawv thov uas cov kua dej muaj cov khoom me me uas ua rau tawv heev. Piv txwv li, hauv kev lag luam cement, thaum ntsuas qhov ntws ntawm cov cement slurry, uas muaj cov khoom me me uas ua rau tawv, alumina ceramic - cov ntsuas hluav taws xob electromagnetic flow meters tuaj yeem muab kev pabcuam ntev. Alumina ceramics kuj muaj kev tiv thaiv tshuaj lom neeg zoo, tshwj xeeb tshaj yog rau cov kua qaub thiab alkalis ntawm qhov kub siab. Lawv tuaj yeem tiv taus qhov kub txog li 1000 ° C, ua rau lawv haum rau cov txheej txheem kev lag luam kub siab.
• Zirconia Ceramics
  • Zirconia ceramics muaj cov khoom siv kho tshuab zoo heev thiab kev ruaj khov tshuaj lom neeg. Lawv tiv taus kev poob siab thermal ntau dua li lwm cov khoom siv ceramic. Zirconia - kab hluav taws xob electromagnetic flow meters yog siv rau hauv cov ntawv thov uas cov kua dej yuav muaj kev hloov pauv kub sai. Hauv kev lag luam tsim iav, thaum ntsuas qhov ntws ntawm cov kua dej iav uas muaj feem cuam tshuam, zirconia ceramic lining tuaj yeem tswj tau qhov kub siab thiab ib puag ncig muaj tshuaj lom neeg, nrog rau qhov muaj peev xwm thermal kev ntxhov siab thaum lub sijhawm ua haujlwm.

Kev Xav Txog Kev Xaiv

Thaum xaiv ib hom ntaub thaiv rau ib qholub ntsuas hluav taws xob, ntau yam yuav tsum tau xav txog. Qhov xwm txheej ntawm cov kua dej, suav nrog nws cov tshuaj lom neeg, qhov kub thiab txias, qhov siab, thiab qhov muaj cov khoom me me abrasive, yog qhov tseem ceeb heev. Rau cov kua dej corrosive heev, cov ntaub ntawv xws li PTFE lossis qee yam ceramics yuav tsum tau. Hauv cov ntawv thov nrog cov kua dej abrasive, cov ntaub thaiv uas tsis yooj yim hnav xws li roj hmab (rau cov ntaub ntawv abrasive tsawg dua) lossis ceramics yog qhov zoo dua. Qhov kub thiab txias thiab siab ntawm cov ntaub ntawv hauv ob sab yuav tsum phim cov xwm txheej ua haujlwm ntawm lub ntsuas dej. Tsis tas li ntawd, tus nqi - kev ua haujlwm zoo thiab kev sib raug zoo nrog tag nrho lub kaw lus, suav nrog cov electrodes thiab lub cev ntsuas, yuav tsum tau coj mus rau hauv tus account.

Xaus lus, qhov kev xaiv ntawm hom ntaub thaiv kom haum rau ib qholub ntsuas hluav taws xobyog qhov kev txiav txim siab tseem ceeb uas cuam tshuam ncaj qha rau kev ua tau zoo, kev ruaj khov, thiab qhov tseeb ntawm kev ntsuas ntws hauv ntau yam kev siv hauv kev lag luam. Los ntawm kev xav txog cov yam ntxwv ntawm cov kua dej thiab cov xwm txheej ua haujlwm, cov ntaub ntawv tsim nyog tshaj plaws tuaj yeem xaiv tau kom ntseeg tau tias kev ua haujlwm ntawm lub ntsuas hluav taws xob electromagnetic flow meter txhim khu kev qha thiab ua haujlwm tau zoo.