Hauv kev ntsuas kub ntawm kev lag luam, Teflon-coated corrosion- tiv taus cov thermocouples thiab ntsia hlau- hom platinum tsis kam ntsuas kub yog ob hom ntsuas kub ntsuas. Lawv txawv heev hauv kev tsim qauv, kev ua haujlwm hauv paus ntsiab lus, cov yam ntxwv ntawm kev ua tau zoo, thiab kev siv cov xwm txheej. Cov hauv qab no muab kev sib piv zoo los ntawm ntau qhov kev pom los qhia meej lawv qhov sib txawv tseem ceeb.
I. Qhov txawv ntawm cov qauv tsim thiab kev teeb tsa
1. Teflon-Coated Corrosion-Resistant Thermocouple
Cov yam ntxwv tseem ceeb ntawm Teflon-coated corrosion- tiv taus cov thermocouple nyob hauv nws cov Teflon txheej tiv thaiv thiab cov qauv hlau bimetallic. Nws feem ntau yog siv Teflon (polytetrafluoroethylene) sheath los qhwv lub raj hlau tiv thaiv, nrog ob txoj hlua hlau sib txawv (xws li npib tsib xee-}chromium thiab npib tsib xee- silicon) welded ua ke sab hauv los ntsuas qhov kawg. Teflon sheath muaj kev ruaj ntseg zoo heev thiab tuaj yeem tiv thaiv corrosion los ntawm cov kua qaub uas muaj zog, muaj zog hauv paus, thiab cov kuab tshuaj organic, ua rau nws tsim nyog rau corrosive ib puag ncig hauv kev lag luam tshuaj thiab tshuaj. Nws txoj kev txhim kho feem ntau yog threaded kev twb kev txuas los yog flange kho, xyuas kom nruj haum nrog cov khoom nto los txhim kho kev ntsuas qhov tseeb thiab cov lus teb ceev. Piv txwv li, nyob rau hauv ib tug tshuaj reactor, lub Teflon sheath tiv thaiv lub thermocouple los ntawm corrosive media, thaum lub threaded kev twb kev txuas tso cai rau kom ceev installation. Nws cov qauv tsim qhia txog kev tiv thaiv corrosion ntawm lub sheath thiab kev ywj pheej ntawm cov xov hlau bimetallic. Teflon sheath txo qhov cuam tshuam ntawm ib puag ncig yam ntawm kev ntsuas qhov tseeb thiab txhim khu kev tiv thaiv rau cov neeg kho tshuab poob siab. Txawm li cas los xij, cov txheej txheem kev teeb tsa yuav tsum ua kom ntseeg tau tias cov sheath nyob rau hauv kev sib cuag nrog qhov chaw ntawm cov khoom raug ntsuas, uas ua rau kom qhov nyuaj ntawm kev teeb tsa, thiab cov xov hlau bimetallic tuaj yeem oxidize nyob rau hauv siab - qhov kub thiab txias ib puag ncig, cuam tshuam ntev - lub sij hawm stability.
2. Screw-Type Platinum Resistance Thermometer
Cov yam ntxwv tseem ceeb ntawm cov ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub nyob hauv nws cov ntsia hlau kho thiab platinum hlau winding qauv. Nws feem ntau siv cov ntsia hlau (xws li M18 × 1.5) kom ua tiav kev teeb tsa ruaj khov los ntawm threading nws mus rau saum npoo ntawm cov khoom raug ntsuas. Sab hauv, platinum xaim yog qhov txhab ntawm cov ceramic lossis mica thav duab los ua qhov kub thiab txias -sensing element. Cov ntsia hlau tsim tso cai rau kev sojntsuam kom muaj txoj haujlwm ruaj khov hauv vibrating lossis kev poob siab ib puag ncig, thiab tseem ua kom yooj yim installation thiab tshem tawm. Piv txwv li, hauv kev tsim tsheb lossis cov cuab yeej siv tshuab, cov ntsia hlau tsim kom muaj kev sib raug zoo ntawm qhov kev sojntsuam thiab cov khoom siv nto, txo cov cua sov thaum lub sij hawm ua kom sov. Cov qauv tsim tshwj xeeb qhia txog kev sib txuas nruj uas muab los ntawm cov ntsia hlau kho thiab kev ruaj ntseg ntawm platinum hlau. Cov ntsia hlau tsim txo cov kev cuam tshuam ntawm ib puag ncig ntawm kev ntsuas qhov tseeb thiab txhim khu kev tiv thaiv rau cov neeg kho tshuab kev co thiab kev poob siab. Txawm li cas los xij, cov txheej txheem kev teeb tsa yuav tsum ua kom tiav kev sib cuag ntawm cov ntsia hlau thiab qhov chaw ntawm cov khoom raug ntsuas, uas ua rau kom qhov nyuaj ntawm kev teeb tsa. Tsis tas li ntawd, qhov kev sib txuas ntawm cov ntsia hlau tuaj yeem xoob vim kev co thaum lub sij hawm ntev - siv, cuam tshuam qhov ntsuas qhov tseeb.
II. Qhov txawv ntawm Cov Cai Ua Haujlwm
1. Txoj Cai Ua Haujlwm ntawm Teflon-Coated Corrosion-Resistant Thermocouples
Thermocouples yog raws li cov nyhuv Seebeck, qhov twg ob lub hlau conductors sib txawv ua kom muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov kub thiab txias. Thaum ob lub hlau conductors txuas nrog rau tsim ib lub voj voog kaw, thiab ob qhov kev sib txuas muaj qhov sib txawv ntawm qhov kub thiab txias, ib qho hluav taws xob hluav taws xob tsim tawm hauv Circuit Court. Qhov loj ntawm lub zog no muaj feem xyuam rau cov khoom siv thiab qhov kub thiab txias sib txawv ntawm cov junctions. Los ntawm kev ntsuas lub zog electromotive, qhov ntsuas kub tuaj yeem suav tsis ncaj. Thermocouples muaj siab rhiab heev; 1℃qhov kub thiab txias hloov ua rau muaj peev xwm hloov pauv ntawm kwv yees li 5-40 microvolts. Lawv cov qauv yog qhov yooj yim, tsis muaj qhov txav txav, ua rau lawv haum rau siab -kub, siab-siab, thiab corrosive ib puag ncig. Qhov sib ntxiv ntawm Teflon txheej ntxiv nthuav dav lawv daim ntawv thov ntau yam, tso cai rau lawv ua haujlwm ruaj khov nyob rau hauv ib puag ncig corrosive heev.
2. Txoj Cai Ua Haujlwm ntawm Screw-Type Platinum Resistance Thermometers
Platinum resistance thermometers yog raws li cov yam ntxwv uas cov hlau tsis kam hloov nrog qhov kub thiab txias. Lawv cov nqi tsis kam muaj qhov tsis zoo -txoj kev sib raug zoo nrog kub thiab yuav tsum tau suav nrog cov ntxhuav lossis cov qauv (piv txwv li, Pt100 muaj qhov tsis kam ntawm 100Ω ntawm 0 degree, thiab tus nqi kuj nce linearly nrog nce kub) los txiav txim qhov ntsuas kub. Platinum kuj thermometers muaj siab rhiab heev; 1℃qhov kub thiab txias hloov ua rau muaj kev hloov pauv tseem ceeb hauv cov nqi tiv thaiv. Lawv cov qauv yog qhov yooj yim, tsis muaj qhov txav txav, ua rau lawv haum rau kev ntsuas qhov tseeb hauv nruab nrab thiab qis kub (-200℃txog 600 degree), tab sis muaj zog sib nqus teb los yog cov neeg kho tshuab kev co yuav tsum zam kom tsis txhob cuam tshuam qhov ntsuas qhov tseeb. Cov ntsia hlau tsim tso cai rau lawv tswj kev ntsuas kev ntsuas ruaj khov txawm tias nyob hauv qhov chaw kub kub. III. Kev Qhia Txog Tus Kheej
1. Kev tshuaj xyuas qhov muag
Teflon-sheathed corrosion-resistant thermocouple: Lub taub hau feem ntau yog npog nrog Teflon sheath, thiab sab hauv muaj ob txoj hlua hlau sib txawv welded ua ke. Lub sheath yog dawb los yog pob tshab thiab muaj ib tug du nto.
Ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub: Lub taub hau feem ntau yog npog nrog lub raj hlau tiv thaiv, thiab sab hauv yog qhov kub thiab txias -sensing element ua los ntawm platinum hlau. Cov ntsia hlau ib feem yog threaded rau saum npoo ntawm cov khoom raug ntsuas.
2. Txoj kev xaim
Teflon-sheathed corrosion{1}}resistant thermocouple: Siv ob- xov hlau (zoo thiab tsis zoo), lub thawv sib txuas yog cim "TC+" thiab "TC-", thiab cov hlau lead feem ntau yog xim liab (zoo) thiab dub / xiav (tsis zoo).
Ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub: Siv peb lub- xov hlau (R1, R2, R3), lub thawv sib txuas yog cim "R1", "R2", "R3", thiab cov hlau lead feem ntau yog xim liab, dawb, thiab daj.
3. Kev ntsuas Multimeter
Teflon-sheathed corrosion{1}}resistant thermocouple: Tus nqi tiv thaiv tsawg heev, feem ntau tsuas yog ob peb ohms.
Ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub: Tus nqi tiv thaiv yog kwv yees li 100 ohms ntawm chav tsev kub (Pt100).
IV. Qhov txawv ntawm Daim Ntawv Thov Scenarios
1. Teflon-cov ntaub thaiv corrosion-resistant thermocouple
Ib puag ncig zoo corrosive: haum rau tshuaj lom neeg, tshuaj, thiab lwm yam lag luam; Teflon sheath tuaj yeem tiv thaiv corrosion los ntawm cov kua qaub muaj zog, muaj zog hauv paus, thiab cov kuab tshuaj organic.
Kev kub siab - ib puag ncig kub: Ua haujlwm ruaj khov hauv siab - ntsuas kub, haum rau siab - cov cuab yeej kub xws li reactors thiab cov kav dej.
2. Ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub
Cov xwm txheej xav tau cov lus teb ceev ceev thiab nyob ze: Piv txwv li, hauv kev tsim tsheb lossis cov cuab yeej siv tshuab, cov ntsia hlau tsim kom muaj kev sib cuag txaus ntawm qhov kev sojntsuam thiab cov khoom siv nto, txhim kho kev ntsuas qhov tseeb thiab cov lus teb ceev.
Nruab nrab thiab qis- qhov kub thiab txias: Ua tau zoo nyob hauv tsev lossis qis- cov xwm txheej siab, xws li HVAC systems.
V. Cov lus qhia xaiv
1. Kev xaiv Teflon-sheathed corrosion-resistant thermocouple
Ib puag ncig tej yam kev mob: Siv nyob rau hauv scenarios yuav tsum tau ntsuas nyob rau hauv heev corrosive ib puag ncig, zam ib puag ncig uas muaj zog vibration los yog cuam tshuam. Kev Yuav Tsum Tau Txhim Kho: Xaiv Teflon- sheathed thermocouple nrog cov lus qhia tshwj xeeb uas haum rau cov khoom siv sojntsuam, ua kom muaj kev sib txuas ruaj ntseg.
2. Ntsia hlau- hom Platinum Resistance Thermometer Xaiv
Kev Yuav Tsum Tau Txhim Kho: Xaiv cov ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub nrog cov lus qhia tshwj xeeb uas haum rau cov khoom siv sojntsuam, ua kom muaj kev sib txuas ruaj ntseg.
Environmental Conditions: Siv nyob rau hauv cov xwm txheej uas yuav tsum tau ntsuas qhov tseeb thiab cov lus teb ceev ceev ntawm qhov nruab nrab mus rau qhov kub thiab txias, kom tsis txhob muaj cov hlau nplaum muaj zog lossis qhov chaw muaj kev vibration.
VI. Summary thiab Complementary Relationship
Qhov sib txawv tseem ceeb ntawm Teflon-sheathed corrosion-resistant thermocouples thiab ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub nyob hauv lawv cov qauv kev ua haujlwm thiab qhov chaw siv tau: Teflon- sheathed corrosion-cov thermocouples resistant siv cov Seebeck nyhuv los muab cov kev ntsuas kub hloov tau yooj yim, tsim nyog rau kev ntsuas kub thiab kev sib cuag zoo, tsim nyog rau kev soj ntsuam ceev ceev thiab kev sib cuag zoo ib puag ncig corrosive heev; ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub siv cov kev hloov pauv los muab kev ntsuas meej ntawm qhov nruab nrab mus rau qhov kub thiab txias, haum rau cov xwm txheej uas xav tau cov lus teb sai thiab nyob ze, thiab ua kom muaj kev ruaj khov hauv kev vibrating lossis kev poob siab. Thaum xaiv, nws yog qhov yuav tsum tau ua kom paub meej cov ntsiab lus tseem ceeb: Teflon-sheathed corrosion- tiv taus cov thermocouples tsom rau cov lus teb ceev thiab ntsuas qhov tseeb hauv siab - qhov kub thiab txias ib puag ncig, thaum ntsia hlau- hom platinum tiv thaiv tus pas ntsuas kub tsom rau cov lus teb ceev thiab ntsuas qhov tseeb hauv nruab nrab{{12} qhov kub thiab txias{11}. Ob leeg ua haujlwm ua ke kom tau raws li qhov ntsuas kub ntawm qhov xav tau ntawm cov xwm txheej sib txawv.
