Dab tsi yog qhov yuam kev ntawm threaded thermocouples
Tso lus
I. Tsawg Thermoelectric Potential (Lub ntsuas ntsuas ntsuas tsawg)
Qhov no yog qhov tshwm sim feem ntau ntawm qhov teeb meem: qhov ntsuas tus nqi qis dua qhov ntsuas kub tiag tiag.
Dej los yog xau hauv lub thermocouple
Yog tias cov xov txuas tsis raug kaw zoo, cov dej noo lossis cov roj corrosive tuaj yeem nkag mus rau hauv lub raj tiv thaiv. Qhov no yuav txo cov rwb thaiv tsev ntawm cov thermoelectrodes thiab cov raj tiv thaiv, uas yuav ua rau cov dej ntws tawm tam sim no thiab txo cov peev txheej tso tawm.
Tshem tawm cov thermoelectrodes, qhuav lawv thiab cov insulating ceramic raj, thiab nrhiav kev puas tsuaj los yog xau hauv cov raj tiv thaiv. Kho lossis hloov nws yog tias koj xav tau.
Qhov kawg ua hauj lwm ntawm lub thermocouple electrodes yuav corrode los yog tawg.
Kev siv cov thermocouple ntev ntev ntawm qhov kub thiab txias los yog qhov chaw corrosive tuaj yeem ua rau "ntsuab corrosion" (xws li K- hom thermocouples siv kub tshaj 900 ° C) lossis oxidation ntawm cov khoom siv thermocouple. Qhov no tuaj yeem hloov kho cov khoom siv thermoelectric thiab txo cov peev txheej tso tawm.
Yog tias qhov ntev tso cai, txiav qhov tsis zoo thiab rov- vuam qhov ua haujlwm kawg. Yog tias qhov kev puas tsuaj loj dhau, hloov lub thermocouple nrog ib qho tshiab.
Plua plav buildup los yog luv luv Circuit Court nyob rau hauv lub junction box
Yog tias lub thawv sib txuas tsis raug kaw kom raug, plua plav, hlau shavings, lossis lwm yam khoom siv hluav taws xob tuaj yeem nkag mus rau hauv thiab ua rau luv luv Circuit Court lossis grounding ntawm cov terminals, uas yuav cuam tshuam cov teeb liab kis tau tus mob.
Kev daws: Qhib lub thawv sib txuas, ntxuav tawm cov plua plav thiab hlau, kaw nws rov qab, thiab xyuas kom lub qhov hluav taws xob tig rau hauv kom tsis txhob ya raws.
Teeb meem nrog cov nyiaj them poob haujlwm
Yog tias cov rwb thaiv tsev puas lawm, cov xaim them nyiaj tsis haum rau hom thermocouple, lossis muaj dej noo ntau dhau, qhov ntsuas yuav tsis raug. Piv txwv li, kev siv tooj liab tsis tu ncua ntawm cov xaim them nyiaj yuav ntxiv cov peev txheej thermoelectric ntau dua.
Kev daws: Hloov nrog cov nyiaj them rov qab ntawm tib cov qauv, xyuas kom meej qhov polarity yog, thiab txhim kho cov dej tsis zoo.
II. Siab Thermoelectric Potential (Kev nyeem ntawv ntawm qhov ntsuas yog siab)
Qhov teeb meem zoo li no tsis tshwm sim ntau zaus, tab sis nws cuam tshuam qhov kev ntsuas qhov tseeb.
Lub thermocouple thiab cov khoom ntsuas ntsuas tsis sib xws.
Yog tias hom thermocouple (xws li K-hom lossis S-type) tsis sib xws nrog cov twj paj nruag thib ob, nws yuav ua rau qhov kev kho qhov txias txias tsis raug, uas yuav ua rau cov nqi tso tawm siab dua lossis qis dua.
Kev daws: Txheeb xyuas tias cov thermocouple thiab cov cuab yeej ntsuas sib haum thiab hloov lawv nrog cov qauv ua. Muaj cov teeb liab cuam tshuam.
Hauv cov chaw tsim khoom, cov khoom siv hluav taws xob muaj zog tuaj yeem ua rau muaj zog ntxiv los ntawm cov xov hlau. Qhov hluav taws xob no ntxiv rau lub peev xwm thermoelectric, uas ua rau kev nyeem ntawv ntau dua.
Tshawb xyuas hauv av, siv cov ntaub thaiv tiv thaiv kab mob, thiab nyob deb ntawm siab - lub zog tsav, zaus hloov pauv, thiab lwm yam uas tuaj yeem cuam tshuam.
III. Cov teeb liab uas tsis ruaj khov lossis hloov pauv
Tus nqi ntawm qhov ntsuas ntsuas hloov pauv, uas yog ib txwm muaj thaum muaj kev vibration lossis kev sib txuas tsis zoo.
Cov kab uas tsis nruj los yog kev sib cuag tsis zoo
Threaded kev sib txuas muaj kev nyab xeeb, tab sis yog tias cov terminals hauv lub thawv sib txuas tsis nruj los yog cov thermocouple tsis ua rau kev sib cuag zoo nrog lub davhlau ya nyob twg, cov cim qhia yuav tsis meej.
Kev daws: Xyuas kom tag nrho cov kev sib txuas yog nruj, ntxuav qhov chaw sib cuag, thiab xyuas kom meej tias lawv yog cov neeg ua haujlwm zoo.
Thermocouple tsis zoo ntsia los yog shaken
Yog tias cov cuab yeej txav tau ntau thiab cov thermocouple tsis nruj tag nrho lossis cov xov raug hnav, qhov kev sojntsuam tuaj yeem xoob, uas yuav ua rau qhov ntsuas kub tsis ruaj khov.
Kev daws: Tighten dua, thiab yog tias xav tau, ntxiv cov ntxhua khaub ncaws lossis cov khoom siv uas txwv tsis pub cov khoom los ntawm loosening lossis vibrating.
Ib nrab Broken Thermocouple Hlau
Kev puas tsuaj los yog qaug zog tuaj yeem ua rau cov xaim thermocouple tsim micro- tawg, uas tuaj yeem ua rau lub teeb liab tsis sib xws.
Siv ib tug multimeter los xyuas qhov tsis kam. Yog tias tus nqi tsis ruaj khov, koj yuav tsum hloov lub thermocouple.
IV. Tsis muaj qhov tso zis ntawm Thermoelectric Potential
Lub ntsuas ntsuas tsis qhia dab tsi lossis qhia txog tus nqi siab tshaj plaws, uas feem ntau txhais tau hais tias lub teeb liab Circuit Court tau tawg.
Hlau rau lub thermocouple tawg
Cov hlau thermocouple tuaj yeem tawg vim kev puas tsuaj rau cov khoom siv, qhov kub thiab txias uas ua rau nws nkig, lossis kev teeb tsa tsis zoo.
Yog tias qhov tawg ze rau qhov kawg, nws tuaj yeem txiav thiab rov ua dua -welded. Yog tias qhov kev puas tsuaj loj heev, nws yuav tsum tau hloov.
Kev them nyiaj xaim uas tawg lossis tig rov qab
Yog tias qhov polarity thim rov qab, yuav tsis muaj teeb liab, tab sis yuav muaj teeb meem loj. Yog tias lub Circuit Court puas lawm, nws yuav tsum tsis ua haujlwm tam sim ntawd.
Txhawm rau txhim kho qhov teeb meem, xyuas kom tseeb tias lub Circuit Court tseem ua haujlwm thiab qhov kev sib txuas yog raug thiab tsis muaj kev tawg.
