Yuav Ua Li Cas Retrofit Ib Hom Thermocouple sib txawv rau hauv Kev Sib Tw Kub Kub?

Retrofitting ib lub thermocouple los ntawm ib hom sib txawv rau hauv qhov kev sib tw kub uas twb muaj lawm yog ib qho kev sib tw txij nkawm, tab sis nws yuav tsum tau ceev faj txog kev sib raug zoo. Thawj qhov kev txiav txim siab yog hom thermocouple -Hom K thiab Hom J tsis hloov pauv tshwj tsis yog tias tus maub los tuaj yeem kho dua. Txawm nyob rau hauv tib hom, ntau hom yuav siv me ntsis sib txawv alloy compositions, ua rau me me tab sis ntsuas qhov sib txawv (± 1-2 degree) uas tuaj yeem cuam tshuam qhov zoo. Lub cev qhov ntev- sojntsuam txoj kab uas hla, qhov ntev, xov loj, thiab cov qauv sib txuas- yuav tsum phim raws nraim; txwv tsis pub, qhov kev sojntsuam yuav tsis zaum zoo rau hauv lub qhov mounting, tsim kom muaj qhov sib txawv ntawm huab cua uas ua rau cov lus teb qeeb thiab nthuav tawm offset. Txoj kev sib tshuam (grounded vs. ungrounded) yog lwm qhov tseem ceeb. Yog hais tias lub hauv paus system yog tsim los rau ungrounded sensors, hloov nrog grounded sawv daws yuav qhia hauv av loops thiab suab nrov, tshwj xeeb tshaj yog yog hais tias tus maub los tsis muaj kev sib cais inputs. Cov ntaub qhwv yuav tsum raug xam tias yog- yog tias tus thawj yog Inconel thiab qhov hloov pauv yog stainless hlau, tom kawg yuav tsis tuaj yeem tiv taus qhov kub thiab txias, ua rau ua tsis tiav ntxov. Cov nyiaj them rov qab yuav tsum phim cov thermocouple hom thiab muaj tib xim coding; mismatched cables yuav ua rau kev nyeem ntawv yuam kev. Thaum retrofitting, nws raug nquahu kom hu rau lub npe tshiab cov kev txhawb nqa thiab muab cov ntsiab lus tseem ceeb ntawm cov thermocouple, suav nrog millivolt tso tawm ntawm qhov ntsuas kub. Ntau tus neeg muab khoom lag luam muaj npe tau muab "hloov-reference" cov lus qhia uas qhia lawv cov qauv rau cov lej OEM nrov. Ua ntej cog lus rau qhov loj-loj retrofit, sim ib chav nyob ntawm thaj chaw tsis tseem ceeb. Khiav nws rau ob peb txhiab lub voj voog, saib xyuas qhov kub thiab txias, thiab sib piv ib feem zoo nrog tus thawj. Tsis tas li ntawd, xyuas tias tus maub los CJC thiab linearisation rooj sib haum; qee tus tswj cov laus muaj cov rooj ruaj khov uas tsis tuaj yeem hloov kho. Yog hais tias qhov retrofit yuav tsum tau hloov cov connectors, xyuas kom meej tias tus pin assigns phim tus maub los lub tswv yim. Sau tus nqi offset tshiab, yog tias muaj, thiab hloov kho cov txheej txheem teeb tsa nplooj ntawv. Retrofitting tuaj yeem txuag tau cov nqi tseem ceeb-feem ntau 30–60% piv rau OEM qhov chaw{{25}tab sis cov nyiaj khaws cia yuav tsum hnyav rau qhov kev pheej hmoo ntawm kev tsis sib haum xeeb. Kev rov ua tiav tiav yuav tsum muaj txoj hauv kev zoo, kev sim ua kom tiav, thiab cov ntaub ntawv meej.