Cov thermocouple yog siv nyob rau hauv plaub qhov chaw uas xav tau kev pab
Cov thermocouples yog qhov tseeb thiab feem ntau cov khoom lag luam hauv kev loj hlob ntawm cov ntsuas sensors, yog li nws tau ua ntau tshaj plaws siv los siv hauv kev ntsuas kub ntsuas cheebtsam. Nws ntsuas kub ncaj qha thiab hloov qhov kub qhov teebmeem rau thermoelectromotive quab yuam, Los ntawm qhov hluav taws xob ntsuas (secondary instrument) rau hauv nruab nrab ntsuas kub.
Txhawm rau txhawm rau txhim kho qhov kev ntsuas, ntsuas qhov ntsuas kev ua yuam kev thiab ua rau lub neej muaj kev kub ntxhov ntawm lub thermocouple, tus neeg siv yuav tsum tsis txhob muaj qhov kev paub ua haujlwm, tab sis kuj muaj kev paub txog lub cev, tshuaj thiab khoom. Tus neeg sau raws xyoo, thiab pom cov ntaub ntawv tseem ceeb, ntawm no hauv cov ncauj lus kom ntxaws txog qhov ntsuas qhov ntsuas qhov ntsuas thiab nws cov kev xyuam xim. Kev siv thermocouple cov txheej txheem, yuav tsum tsom ntsoov rau cov teeb meem nram qab no:
1, thermocouple degree ntawm faib yuav tsum siv nrog ntsuas kub thiab tswj cov khoom siv los ntawm lub thermocouple kom sib xws;
2, lub installation ntawm qhov chaw nyob ntawm lub thermocouple yuav tsum kom deb li deb tau ntawm qhov muaj zog electromagnetic teb, kom tsis txhob muaj zog-fais fab qaum, thiaj li tsis los ua kom paub ntxiv cuam tshuam lub ntsuas ntsuas tus pas ntsuas kub; 3, ib qho tsim nyog xaiv thermocouple casing khoom, lub cheeb, Zog, thiab yoog mus rau cov chaw ntsuas. Lub sab nraud ntawm qhov yuav tsum tau ceev cia, cov xim ntawm cov tawv nqaij yuav ua rau lub thermal ua hauj lwm, ntsuas kub yuav qis dua qhov ntsuas qhov kub;
3, thermocouple tsis ua hauj lwm ntev ntev rau qhov siab tshaj plaws ntawm kev tso cai, txwv tsis pub nws yuav ua rau cov khoom hloov thermocouple, ua rau muaj kev ntsuas ntau ntxiv. Nyob rau hauv kev ntsuas ntawm tsawg kub, thiaj li kom txo thermal inertia ntawm lub thermocouple, yuav siv tau nyob rau hauv lub hom lossis outcrop thermocouple;
4, yuav tsum nco ntsoov xyuas cov electrode thiab cov thoob khib nyiab kom zoo, yog pom los txo cov kabmob hauv zos los yog casing casing nplai corrosion thiab lwm yam phenomena, yuav tsum tsis txhob siv, thiab hloov cov thermocouple tshiab. Tom qab lub thermocouple puas lawm, qhov puas tuaj yeem yuav raug tshem tawm, lossis ntsuas qhov kawg thiab kev siv sab ntawm kev sib pauv, rov vuam, tom qab calibration ntxiv mus siv.
