Lub deterioration ntawm platinum Rhodium thermoco thermoco thermoco thilium rho tawm throdium throdoco throdoco throdoco throdoco throdoco throdoco throdoco throdocouples

Qhov tsis zoo ntawm Platinum Rhodium throdium thermoco thermocouples thiab cov kev pabcuam lub neej ntawm thermocoure

Kev ua rau Platinum Rhodium thermoco thermoco

Cov kev pabcuam lub neej ntawm platinum Rhodium throdoco thermoco thermocouples yog ze rau kev ua haujlwm ntev. Lub deterioration ntawm thermocouples hais txog qhov tshwm sim ntawm kev laus thiab tsis zoo tom qab siv. Thermocoter ua los ntawm cov hlau lossis alloys maj mam loj hlob rau lawv cov nplej sab hauv ntawm cov kub. Nyob rau tib lub sijhawm, lub alloy muaj ib qho me me ntawm impurities, uas nws txoj hauj lwm lossis cov duab tseem yuav hloov pauv, thiab nws yuav ua rau muaj roj oxidizing. Nrog rau cov kev hloov saum toj no, lub peev xwm thermoelectric siab ntawm thermocouple yuav kuj hloov pauv kev hloov pauv ntau. Yog li ntawd, qhov kev cuam tshuam ntawm thermocouples yog kev tsis muaj.

Cov Kev Pabcuam Lub Neej ntawm Platinum Rhodium throdium thermocouple

Qhov kev ua kom muaj kev cuam tshuam ntawm cov platinum Rhodium thermocoalples yog qhov nyuaj rau kev ntsuas thiab yuav sib txawv nrog cov hom, lub taub, huab cua, thiab lub sijhawm ntawm lub thermocouple. Cov kev pabcuam lub neej ntawm lub thermocouple yog hais txog lub sij hawm thaum lub thermocouple paug tshaj qhov tsis muaj kev ua yuam kev, lossis txawm so thiab siv tsis tau.

(1) Lub neej ntawm prefabricated thermocotres

Hauv peb lub teb chaws tus qauv, tsuas yog qhov kev ruaj ntseg ntawm thermocouples yog qhov yuav tsum tau ua. Qhov hloov pauv hauv thermoelectric muaj peev xwm ua ntej thiab tom qab 200 teev ntawm kev siv ntawm ib qho kub yog teev. Txawm li cas los xij, tsis muaj cov kev cai ntawm kev pabcuam lub neej tau pom tsis tau. Cov kev tseev kom muaj rau lub neej pabcuam ntawm thermocouples hauv Nyij Pooj yog siv nyob rau hauv lub sijhawm thermocese teev nyob rau hauv lub japanese jis (c {1}}) tus qauv. Rau hom B, R, thiab S Thermoco, nws yog 2000, rau hom K, e, J, thiab T Thermocouples, nws yog 10000h.

Hauv kev siv, Prefabricated thermocouples feem ntau muaj cov leeg tiv thaiv thiab tsuas yog siv nrog cov hlau liab hauv tshwj xeeb. Yog li ntawd, feem ntau, lub neej ntawm lub raj tiv thaiv tiv thaiv kev txiav txim siab lub neej ntawm thermocouple. Kev txiav txim siab ntawm qhov kev pabcuam thermoco thermocrourcles yuav tsum yog ua raws cov ntaub ntawv ntev kom muab cov txiaj ntsig zoo dua [5].

(2) Lub neej ntawm cov thermored thermocouples

Vim tias lub tes tsho tiv thaiv thermored thermored thermored thermored thermocouples thiab lawv cov khoom siv sab nraud, cov khoom siv ntawm lub neej ntawm thermored thermocouples. Yog li ntawd, cov xov hlau thermocouple thiab cov tsho hlau yuav tsum tau xaiv raws li lawv qhov kev npaj siv. Tom qab cov khoom siv tau xaiv, nws lifespan nce nrog kev nce ntawm txoj kab uas hla ntawm lub tshuab ua rog thermocouple. Piv nrog prefabricated thermocouples, muaj cuab yeej thermocous muaj ntau yam zoo, tab sis lawv lub neej pabcuam feem ntau qis dua.

lub ntsiab

Platinum Rhodium thermocouple yog ib qho siv kub tshaj plaws hauv kev tshawb fawb thiab kev tsim khoom. Txawm hais tias nws cov qauv yog yooj yim, nws tseem tuaj yeem tsim cov ntsuas tsis tseem ceeb yog tias tsis tau siv tiag thaum siv. Tus kws sau ntawv tau sib tham txog qhov tseem ceeb rau cov ntsiab lus tsis raug, thiab cua sov ua rau muaj teeb meem kub, thiab thermal impiation ntawm cov teeb meem uas tshwm sim thaum siv. Tus sau ntawv kuj tau hais tawm kev ceev faj rau kev siv thermocoucles xws li heterogeneity, kev xaiv cov cua ntawm K-hom kev siv hluav taws xob, thiab shunt yuam kev ntawm cov thermored thermored thermocouples. Nws yog pab tau nyob rau hauv kev txhim kho qhov tseeb thiab txuas cov kev pabcuam lub neej ntawm thermocouples.