Cov kev sib raug zoo ntawm kev pab cuam lub neej ntawm lub thermocouple thiab nws deterioration
Qhov sib txheeb ntawm kev ua haujlwm ntawm lub thermocouple thiab nws txoj kev puas tsuaj yog dab tsi? Nyob rau hauv cov ntaub ntawv ntawm
Peb cov txheej txheem tsuas yog yuav tsum muaj kev ruaj ntseg ntawm cov thermocouple. Uas yog teev nyob rau ntawm ib qho kub los ntawm 200 h, ua ntej thiab tom qab siv cov thermoelectromotive yuam kev hloov. Txawm li cas los xij, txoj hauj lwm lub neej tsis tau pom dua. Nyiv lub thermocouple cov kev pab cuam lub neej, raws li tus Japanese JIS (C-1602-1995) tus txheem thermocouple hauv kev siv lub sijhawm siv mus ntxiv. Rau B R R S X erior S thermocouple nyob rau hauv cov nqe lus ntawm 2000h, K بولمىغان E бас J ﹑ T thermocouple rau 10000h. Nyob rau hauv cov ntaub ntawv ntawm
Thaum siv lub thawv ntim thawm niaj thawm feem ntau muaj kev tiv thaiv tub luam, tsuas yog thaum muaj teeb meem tshwj xeeb tsuas yog siv txoj hlua khi xwb. Yog li, feem ntau, lub neej ntawm kev tiv thaiv tube txiav txim siab txog lub neej thermalocouple. Lub neej ntawm lub thermocouple los txiav txim, yuav tsum yog los ntawm kev sau mus sij hawm ntev, txuam nrog kev siv cov ntaub ntawv, nws yog ib qhov ua tau muab ntau cov kev tseeb. Thermocouple yog kev tshawb fawb thiab kev tsim ntawm feem kub tshaj plaws siv qhov kub thiab txias, txawm hais tias tus qauv yog yooj yim, tab sis kev siv ntawm cov xim yuav tseem tsim kev ntsuas qhov loj. Nyob rau hauv daim ntawv no, lub ntsiab tseem ceeb rau qhov yuam kev ntawm thermocouple qhov chaw, qhov tob ntawm lub thermocouple, lub sijhawm teb, hluav taws xob hluav taws xob thiab thermal impedance yog sib tham nyob rau hauv kom meej, thiab thermocouple tsis yog yam thiab lub chaw siv. Rwb thaiv tsev, K-hom thermocouple selective oxidation, K xeev thiab armored thermocouple shunt yuam kev hauv kev siv ntawm daim ntawv. Nyob rau hauv cov ntaub ntawv ntawm
Thajchim kev degradation thiab lub neej
Qhov no hu ua thermocouple degradation, uas yog, tom qab siv cov thermocouples, laus zuj zus phenomenon. Cov thermocouples ua los ntawm hlau los yog hlau, nyob rau hauv nws high kub ntawm lub grain ntim rau maj loj hlob li. Nyob rau tib lub sij hawm cov hlau yog ib qho me me ntawm impurities, nws qhov chaw los yog cov duab yuav pauv, tab sis kuj nyob puag ncig ntawm qhov txo lossis oxidation ntawm cov roj yuav tsum kuj hnov mob. Nrog rau cov kev hloov saum toj no, thermocouple thermoelectromotive quab yuam kuj yuav rhiab heev hloov. Yog li ntawd qhov teeb meem thermocouple degradation phenomenon yog inevitable. Nyob rau hauv cov ntaub ntawv ntawm
Kev degradable thermocouple yog ib qhov txheej txheem, nws yog qhov nyuaj heev rau yamntxwv, nrog hom thermocouple inch, kev siv kub, cua, lub sijhawm txawv. Kev pabcuam Thermocouple lub neej yog hais txog kev loj hlob ntawm thermocouple kom dhau qhov kev ua yuam cai, los yog twb kaw tsis tuaj yeem siv lub sijhawm.
