Dab tsi yog qhov ua haujlwm tsis zoo ntawm flange ruaj khov -mounted junction box type thermocouples
Tso lus
Lub neej ntev ntawm kev ruaj khov -flange mounted junction box thermocouples yog qhov tseem ceeb rau kev ua haujlwm ruaj khov ntawm kev ntsuas kub ntawm cov tshuab. Vim lawv cov kev txhim kho ruaj khov thiab kev sib khi zoo, cov thermocouples no tau siv dav hauv cov xwm txheej hnyav xws li siab - kub thiab siab - cov cuab yeej siv siab, cov reactors loj, thiab cov kav dej. Lawv lub neej ua haujlwm feem ntau yog nyob nruab nrab ntawm 3 thiab 5 xyoos, thiab nrog kev saib xyuas kom zoo thiab kev ua haujlwm zoo, nws tuaj yeem txuas ntxiv mus rau ntau dua 8 xyoo. Txawm li cas los xij, qhov tseeb lifespan yog cuam tshuam los ntawm ntau yam thiab yuav tsum muaj kev ntsuam xyuas dav raws li kev ua haujlwm tshwj xeeb.
I. Cov yam tseem ceeb cuam tshuam rau lub neej
Kev khiav hauj lwm kub thiab Thermal Cycling zaus:
Ntev- lub sijhawm ua haujlwm ntawm qhov kub thiab txias ze rau cov khoom txwv (xws li K- hom thermocouples tshaj 900℃) ua kom "ntsuab rot" ntawm cov thermoelements, kev laus ntawm cov ntaub ntawv rwb thaiv tsev, thiab oxidation ntawm cov raj tiv thaiv. Nquag pib- nres cycles ua rau thermal expansion thiab contraction, ua rau qaug zog ntawm cov qauv sealing thiab txo kev cia siab.
Environmental Corrosiveness thiab Medium Yam ntxwv:
Kev sib cuag nrog corrosive gases xws li sulfur thiab chlorine, los yog xov xwm xws li molten ntsev thiab ncu, tuaj yeem ua rau corrosion thiab perforation ntawm lub raj tiv thaiv los yog degradation ntawm cov thermoelements. Piv txwv li, cov thermocouples siv hauv cov cement cog kilns yuav muaj lub neej luv luv rau 2-3 xyoos vim yog cov hmoov av alkaline corrosion.
Mechanical Vibration thiab Installation Zoo:
Thaum ntsia ze ze ntawm qhov chaw vibration xws li kiv cua thiab compressors, yog tias tsis muaj kev vibration damping ntsuas, lub flange bolts tuaj yeem yooj yim loosen, ua rau kev foob tsis ua hauj lwm thiab tom qab hauv cov dej noo ingress thiab luv circuits.
Kev Tiv Thaiv Tube thiab Junction Box Khoom:
Cov ntaub ntawv tiv thaiv sib txawv muaj qhov sib txawv ntawm qhov kub thiab txias thiab hnav tsis kam. Piv txwv li, 316L stainless hlau raj tuaj yeem ua haujlwm ruaj khov rau ntau tshaj 5 xyoos hauv qab 600 degree, thaum lub raj carbon steel feem ntau yuav muaj oxidation thiab tawg tsis pub dhau 2 xyoos nyob rau hauv tib lub sijhawm.
II. Siv Lifespan nyob rau hauv Hom Kev Ua Haujlwm Zoo
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Daim ntawv thov Scenario |
Hom Lifespan |
Kev piav qhia |
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High -kub qhov cub (<1000℃) |
3-5 xyoos |
Siv corundum los yog silicon carbide tiv thaiv cov hlab ntsha tuaj yeem txuas lub neej mus txog 8 xyoo. |
|
Chemical reactors (nruab nrab corrosion) |
2-4 xyoos |
Hastelloy lossis 316L stainless hlau raj tau pom zoo. |
|
Cement kilns |
1-3 xyoos |
Kub kub, siab plua plav, thiab alkaline corrosion ua ke. |
|
Circulating fluidized txaj boilers |
8-12 lub hlis |
Ib puag ncig hnav hnyav, yuav tsum tau hloov tsis tu ncua. |
|
Ceramic roller kilns |
Kwv yees li 5 xyoos |
Ib puag ncig ruaj khov, tsis tshua muaj thermal cycling zaus. |
III. Kev ntsuas tseem ceeb txhawm rau txuas lub neej ua haujlwm
Kev xaiv kom zoo: Xaiv cov khoom siv tiv thaiv zoo raws li qhov kub thiab txias, corrosiveness, thiab hnav degree. Piv txwv li, siv cov tungsten carbide alloy txheej rau siab -kub hnav- tiv taus cov thermocouples tuaj yeem ua rau lub neej nce mus txog 1-5 zaug.
Standardized Installation: Xyuas kom lub flange foob yog zoo lawm thiab cov bolts yog tus sib npaug. Lub qhov hluav taws xob lub qhov hluav taws xob yuav tsum tig mus rau pem hauv ntej kom tsis txhob muaj dej los nag los yog condensation los ntawm kev nkag; qhov tob qhov ntxig yuav tsum yog 8-10 npaug ntawm txoj kab uas hla ntawm lub raj tiv thaiv kom tsis txhob muaj kev kub ntxhov.
Regular Maintenance: Check the aging of the sealing ring quarterly, tighten the wiring terminals every six months, and test the insulation resistance annually (should be >100MΩ).
Tsim kom muaj Kev Tswj Xyuas Txheej Txheem: Sau lub sijhawm teeb tsa, calibration keeb kwm, thiab cov ntaub ntawv yuam kev kom hloov ntawm "kev hloov pauv" mus rau "kev saib xyuas kev kwv yees."
