Petrochemical Kev Lag Luam Thermocouples Yuav Ua Li Cas Corrosive Ib puag ncig?

Thermocouples nyob rau hauv petrochemical sector yog tsis tu ncua nyob rau hauv ib co ntawm feem ntau hostile thiab corrosive tej yam kev mob muaj. Cov cuab yeej ntsuas kub no tau tsim kom muaj sia nyob zoo thiab ua haujlwm kom ua haujlwm tau zoo raws li qhov xav tau no.
Cov nyhuv Seebeck tsav lub thermocouple los ntawm nws qhov yooj yim pom. Kev ntsuas kub yog ua tau los ntawm qhov tsim ntawm qhov hluav taws xob thaum ob qho tib si hlau sib txuas ntawm qhov sib txuas thiab qhov ntsuas kub sib txawv. Tab sis nyob rau hauv petrochemical qhov chaw, lub tswv yim tseem ceeb no yuav tsum tau siv nyob rau hauv ib tug corrosive tus neeg saib xyuas-filled ib puag ncig.
Petrochemical thermocouples 'cov khoom yog thawj kab ntawm kev tiv thaiv corrosion. Feem ntau yog tsim los ntawm cov khoom siv ceramic lossis cov khoom siv tshwj xeeb, cov thermocouples no suav nrog cov txheej txheem sab nraud. Ib qho tshwj xeeb tshaj yog tiv taus tshuaj tua kab mob yog ceramic sheaths. Zoo li cov txheej txheem ntawm cov cuab yeej tsis sib haum xeeb, lawv ua haujlwm tiv thaiv kev tiv thaiv npog cov kab hluav taws xob thermocouple tsis yooj yim sab hauv los ntawm cov tshuaj corrosive hauv thaj chaw petrochemical. Hauv cov kab ke uas muaj cov tshuaj sulfur-muaj ntau, suav nrog cov roj refining, cov ceramic sheaths nres cov sulfur los ntawm kev cuam tshuam nrog cov thermocouple cov hlau.
Thermocouple xov hlau yog tsim los siv cov hlau tshwj xeeb thiab. Cov alloys tau xaiv tshwj xeeb tshaj yog rau lawv cov corrosion kuj. Ib co alloys, piv txwv li, muaj xws li chromium thiab npib tsib xee, uas thaum raug corrosive tej yam kev mob tsim ib tug passive oxide txheej nyob rau saum npoo ntawm cov hlau. Muab xam tias yog ib qho kev tiv thaiv tus kheej, qhov oxide txheej no lossi tiv thaiv cov hlau hauv qab los ntawm kev xeb ntau dua. Cov hlau zoo li muaj ib qho kev txhim kho hauv kev kho uas txuas ntxiv txuas ntxiv nws qhov kev tawm tsam tiv thaiv kev tawm tsam corrosive.
Kev tuav cov kab mob corrosive kuj tseem nyob ntawm qhov tsim ntawm petrochemical thermocouples. Feem ntau, qhov sib txuas ntawm ob lub hlau-qhov uas qhov kub-sensitive voltage yog tsim-yog them rau hauv kev tsim kho. Qee cov qauv tsim muaj qhov sib txuas faus rau hauv cov khoom siv tsis tshua muaj corrosion los yog nyob rau hauv cov ntaub ntawv tiv thaiv. Qhov no tiv thaiv cov khoom corrosive cuam tshuam rau qhov tseem ceeb tshaj plaws ntawm cov thermocouple ncaj qha. Nws zoo li kev tiv thaiv lub plawv ntawm lub tshuab nyob rau hauv lub chamber guarded, guaranteeing nws flawless kev ua tau zoo nyob rau hauv lub ntsej muag ntawm sab nraud txaus ntshai.
Qhov npog muab tso rau ntawm cov khoom siv thermocouple yog lwm qhov kev txiav txim siab. Qee cov thermocouples siv cov txheej txheem tshwj xeeb uas muab lwm txheej kev ruaj ntseg. Ib tus tuaj yeem tsim cov txheej txheem no los tiv thaiv qee yam corrosive agents. Nyob rau hauv ib qho chaw uas muaj acidic vapors, piv txwv li, txheej txheej nrog cov yam ntxwv tseem ceeb yuav ua rau cov kua qaub uas tuaj yeem kov nrog cov thermocouple, yog li txo qis qhov muaj peev xwm corrosion. Qhov no yog piv rau kev muaj cov ntaub thaiv npog khawv koob uas tsis tsuas yog tso tseg kev ua phem ntawm tus nrog sib ntaus tab sis kuj ua rau nws cov kev cuam tshuam tsis zoo.
Tsis tas li ntawd, cov txheej txheem ntawm kev teeb tsa thiab kev saib xyuas txuas nrog petrochemical thermocouples tau ua tib zoo npaj kom txo qis corrosion. Txoj kev sealing thiab rwb thaiv tsev kom raug yog siv thaum lub sijhawm teeb tsa kom tsis txhob muaj tus neeg sawv cev corrosive nkag. Nyob rau hauv ib kem distillation, piv txwv li, qhov twg cov thermocouple muab tso rau, cov ntaub ntawv resistant rau cov tshuaj nyob rau hauv kem kaw cov ntsiab lus txuas. Tsis tas li ntawd, ib feem ntawm kev saib xyuas tsis tu ncua yog cov kev txheeb xyuas nrhiav txhua qhov ntsuas corrosion. Yog tias ib qho ntawm cov thermocouple muaj qhov degeneration, nws yuav raug hloov lossis kho tam sim ntawd. Qhov kev tiv thaiv zoo no zoo li tus neeg saib xyuas neeg saib xyuas uas niaj hnub tshawb nrhiav cov nroj tsuag rau kab tsuag thiab kab mob thiab teb tam sim ntawd los tiv thaiv lawv.
Petrochemical thermocouples 'muaj peev xwm los tswj corrosive ib puag ncig tsis yog tsuas yog qhov tseem ceeb rau lawv tus kheej lub neej tab sis kuj rau qhov tseeb ntawm qhov ntsuas kub. Yog tias lub thermocouple txhim kho corrosion, qhov ntsuas kub tsis zoo yuav ua raws. Nyob rau hauv cov txheej txheem petrochemical zoo li polymerization, qhov tseeb qhov ntsuas kub yog qhov tseem ceeb rau qhov zoo ntawm cov khoom kawg, cov thermocouple tsis raug los ntawm kev xeb tuaj yeem tsim cov polymers nrog cov yam ntxwv zoo. Hauv kev lag luam refinery, cov ntaub ntawv kub tsis raug dhau los ntawm cov thermocouple corroded yuav ua rau tsis muaj txiaj ntsig hauv kev sib cais ntawm ntau cov roj feem.
Nyob rau hauv qhov tseeb, petrochemical kev lag luam thermocouples muaj ntau txoj hauv kev los tswj corrosive ib puag ncig. Cov thermocouples no tiv taus cov tshuaj lom neeg hnyav los ntawm cov khoom siv tiv thaiv corrosion, tsim ntse, tiv thaiv txheej, tsim nyog installation thiab tu cov txheej txheem. Kev ua haujlwm ntseeg tau ntawm cov txheej txheem petrochemical nyob ntawm lawv lub peev xwm ua tau, uas lav qhov ntsuas kub kom raug thiab tsim cov khoom zoo.