Ama-thermocouple ayithuluzi elibalulekile lokulinganisa izinga lokushisa ezimbonini ezahlukene. Phakathi kwezinhlobo ezahlukene, ama-thermocouple e-platinum-rhodium avelele ngokusebenza kwawo okushisa okuphezulu kanye nokunemba kwawo. Lesi sihloko sizohlola imininingwane yama-thermocouple e-platinum-rhodium, okuhlanganisa ukusetshenziswa kwawo, ucingo lwe-thermocouple olungcono kakhulu, kanye nokwakheka kwama-thermocouple ohlobo lwe-S.
Yiziphi izinhlobo ze-thermocouples ze-platinum-rhodium?
Kunezinhlobo ezintathu eziyinhloko ze-ama-thermocouple e-platinum-rhodium: Uhlobo B, uhlobo R, kanye nohlobo S. Lawa ma-thermocouple aziwa ngokuqina kwawo ekushiseni okuphezulu futhi avame ukusetshenziswa ezinhlelweni ezidinga ukulinganiswa okunembile kokushisa.
1. Uhlobo B (Iplatinum 30% Rhodium/Iplatinum 6% Rhodium): Izinga lokushisa: 0°C kuya ku-1700°C, Izici: Ama-thermocouple ohlobo B azinzile kakhulu futhi angalinganisa amazinga okushisa aphezulu kakhulu. Avame ukusetshenziswa ezithandweni nasema-oven ashisa kakhulu.
2. Uhlobo R (Iplatinum 13% Rhodium/Platinum): Izinga lokushisa: -50°C kuya ku-1600°C, Izici: Ama-thermocouple ohlobo R athola ibhalansi enhle phakathi kwezindleko nokusebenza. Asetshenziswa ezinhlobonhlobo zezicelo zezimboni okuhlanganisa ukukhiqizwa kwengilazi kanye nokucubungula insimbi.
3. Uhlobo S (Iplatinum 10% Rhodium/Platinum): Izinga lokushisa: -50°C kuya ku-1600°C, Izici: Ama-thermocouple ohlobo S aziwa ngokunemba kwawo kanye nokuqina kwawo. Avame ukusetshenziswa emalabhorethri nasezimbonini lapho ukulawulwa kokushisa okunembile kubalulekile khona.
Iyiphi intambo ye-thermocouple engcono kakhulu?
Inhloso yokwahlulela ikhwalithi yomkhiqizo isekhwalithini yayo. Imikhiqizo ehlukene inezindinganiso zekhwalithi ezahlukene, futhi ikhwalithi yocingo lwe-platinum-rhodium thermocouple ingahlulelwa kusukela kulezi zakhiwo ezine ezilandelayo. Okokuqala, ucingo lwe-platinum-rhodium lunokuqina kokushisa okuphezulu futhi lungamelana namazinga okushisa aphezulu kakhulu ngaphandle kokuwohloka. Lokhu kuzinza kuqinisekisa ukulinganiswa okunembile kokushisa ebangeni elibanzi lokushisa. Okwesibili, ama-thermocouple e-platinum-rhodium ahlinzeka ngokulinganisa okunembile kokushisa, okwenza kube kuhle kakhulu ekusetshenzisweni okudinga ukunemba okuqinile. Ngaphezu kwalokho, i-platinum ne-rhodium nazo zinokumelana nokugqwala okuphezulu, okuqinisekisa impilo yesevisi kanye nokuthembeka kocingo lwe-thermocouple ezindaweni ezinzima. Ukuqina kocingo lwe-platinum-rhodium thermocouple kuyenza ifaneleke ukusetshenziswa isikhathi eside ezisetshenziswa ezimbonini, kunciphisa isidingo sokufakwa esikhundleni njalo. Uma izidingo zokunemba kokulinganisa, ukuzinza, ukumelana nokushiswa kwe-oxidation, njll. ziphezulu kakhulu, ucingo lwe-platinum-rhodium thermocouple luyisinqumo esingcono kakhulu.
Iyini ukusetshenziswa kwentambo ye-thermocouple yeplatinum?
Ucingo lwe-thermocouple yeplatinumIyingxenye ebalulekile ekwakhiweni kwama-thermocouple e-platinum-rhodium. Izakhiwo zayo eziyingqayizivele zenza ucingo lwe-platinum-rhodium thermocouple lufanelekele ukusetshenziswa okuhlukahlukene kwezinga lokushisa eliphezulu. Embonini yezindiza, ucingo lwe-platinum thermocouple lusetshenziselwa ukukala izinga lokushisa lama-jet engine nezinye izingxenye ezisezingeni lokushisa eliphezulu. Ukulinganisa izinga lokushisa okunembile kubalulekile ekuphepheni nasekusebenzeni kwemishini yezindiza. Ucingo lwe-platinum thermocouple lusetshenziswa ezithandweni zezimboni ukuqapha nokulawula amazinga okushisa aphezulu. Ukuqina nokunemba kwazo kuqinisekisa ukuthi isithando sisebenza ngaphakathi kobubanzi bokushisa obudingekayo, ngaleyo ndlela sithuthukise ukusebenza kahle kanye nekhwalithi yomkhiqizo. Ngaphezu kwalokho, inqubo yokukhiqiza ingilazi idinga ukulawulwa kokushisa okunembile, kanti ucingo lwe-platinum thermocouple lusetshenziselwa ukuqapha izinga lokushisa lezithando zengilazi ukuqinisekisa ukukhiqizwa kwengilazi okuhambisanayo nokwekhwalithi ephezulu. Ocwaningweni lwesayensi, ukulinganisa izinga lokushisa okunembile kubalulekile ekuhlolweni nasekuqoqweni kwedatha. Ucingo lwe-platinum thermocouple lusetshenziselwa ukukala izinga lokushisa ezivivinyweni ezahlukahlukene elabhorethri, lunikeza idatha ethembekile nenembile.
Ama-thermocouple e-Platinum-rhodium (kufaka phakathi izinhlobo B, R, kanye no-S) angamathuluzi abalulekile okulinganisa izinga lokushisa ngokunembile ekusetshenzisweni kwezinga lokushisa eliphezulu. Lapho ukhetha ucingo lwe-thermocouple olungcono kakhulu, ama-thermocouple e-platinum-rhodium avame ukuba yisinqumo sokuqala ngoba asebenza kahle ezindaweni ezinzima. Ama-thermocouple e-Platinum-rhodium adlala indima ebalulekile ezimbonini ezahlukahlukene, enikeza ukunemba nokuzinza okudingekayo ekusetshenzisweni kwezinga lokushisa eliphezulu.
Isikhathi sokuthunyelwe: Septhemba-20-2024
