Ama-thermocouples angamathuluzi okulinganisa izinga lokushisa abalulekile ezimbonini ezihlukahlukene. Phakathi kwezinhlobo ezahlukene, ama-thermocouples e-platinum-rhodium agqama ngokusebenza kwawo okunezinga eliphezulu lokushisa nokunemba. Lesi sihloko sizocubungula imininingwane yama-thermocouples e-platinum-rhodium, okuhlanganisa ukusetshenziswa kwawo, ucingo olungcono kakhulu lwe-thermocouple, kanye nokwakheka kwama-thermocouples ohlobo lwe-S.
Yiziphi izinhlobo ze-thermocouples ze-platinum-rhodium?
Kunezinhlobo ezintathu eziyinhloko zeI-platinum-rhodium thermocouples: Uhlobo lwe-B, uhlobo lwe-R, nohlobo lwe-S. Lawa ma-thermocouples aziwa ngokuzinza kwawo kwezinga lokushisa eliphezulu futhi avame ukusetshenziswa ezinhlelweni ezidinga ukukalwa okunembile kwezinga lokushisa.
1. Uhlobo B (I-Platinum 30% Rhodium/Platinum 6% Rhodium): Ibanga lokushisa: 0°C kuya ku-1700°C, Izici: Ama-thermocouples ohlobo lwe-B azinze kakhulu futhi angakala amazinga okushisa aphakeme kakhulu. Okuvame ukusetshenziswa ezithandweni zokushisa eziphezulu kanye nama-kilns.
2. Uhlobo R (Platinum 13% Rhodium/Platinum): Ibanga lokushisa: -50°C kuya ku-1600°C, Izici: Uhlobo R lwe-thermocouples lushaya ibhalansi enhle phakathi kwezindleko nokusebenza. Zisetshenziswa ezinhlobonhlobo zezicelo zezimboni ezihlanganisa ukukhiqizwa kwengilazi nokucubungula kwensimbi.
3. Uhlobo S (Platinum 10% Rhodium / Platinum): Ububanzi bokushisa: -50 ° C kuya ku-1600 ° C, Izici: Uhlobo lwe-thermocouples yohlobo lwe-S luyaziwa ngokunemba nokuzinza. Avame ukusetshenziswa kumalabhorethri nasezimbonini lapho ukulawula izinga lokushisa okunembayo kubalulekile.
Iyiphi intambo ye-thermocouple engcono kakhulu?
Inhloso yombandela yokwahlulela ikhwalithi yomkhiqizo ilele kwikhwalithi yawo. Imikhiqizo ehlukene inamazinga ekhwalithi ahlukene, futhi izinga le-platinamu-rhodium thermocouple wire lingahlulelwa kulezi zakhiwo ezine ezilandelayo. Okokuqala, i-platinum-rhodium wire inozinzo lokushisa eliphezulu futhi ingamelana namazinga okushisa aphakeme kakhulu ngaphandle kokuwohloka. Lokhu kuzinza kuqinisekisa ukukalwa kwezinga lokushisa okunembile phezu kwebanga elibanzi lokushisa. Okwesibili, ama-thermocouples e-platinum-rhodium ahlinzeka ngokulinganisa izinga lokushisa okunembile, okuwenza alungele izinhlelo zokusebenza ezidinga ukunemba okuqinile. Ngaphezu kwalokho, i-platinum ne-rhodium nayo inokumelana nokugqwala okuphezulu, okuqinisekisa impilo yesevisi nokuthembeka kocingo lwe-thermocouple ezindaweni ezinokhahlo. Ukuqina kwe-platinum-rhodium thermocouple wire kuyenza ifanelekele ukusetshenziswa isikhathi eside ezinhlelweni zezimboni, kunciphisa isidingo sokushintshwa njalo. Uma izidingo zokulinganisa ukunemba, ukuzinza, ukumelana ne-oxidation, njll. ziphakeme kakhulu, i-platinamu-rhodium thermocouple wire iyisinqumo esingcono kakhulu.
Iyini ukusetshenziswa kwe-platinamu thermocouple wire?
I-Platinum thermocouple wireiyingxenye ebalulekile ekwakhiweni kwe-platinum-rhodium thermocouples. Izakhiwo zayo eziyingqayizivele zenza i-platinum-rhodium thermocouple wire ifaneleke ezinhlobonhlobo zezicelo zokushisa okuphezulu. Embonini ye-aerospace, i-platinum thermocouple wire isetshenziselwa ukukala izinga lokushisa lezinjini ze-jet nezinye izingxenye zezinga eliphezulu lokushisa. Ukulinganisa izinga lokushisa okunembile kubalulekile ekuphepheni nasekusebenzeni kwezinto zokusebenza zasemkhathini. I-Platinum thermocouple wire isetshenziswa eziko ezimbonini ukuqapha nokulawula amazinga okushisa aphezulu. Ukuzinza nokunemba kwazo kuqinisekisa ukuthi isithando somlilo sisebenza ngaphakathi kwebanga lokushisa elidingekayo, ngaleyo ndlela sithuthukise ukusebenza kahle kanye nekhwalithi yomkhiqizo. Ngaphezu kwalokho, inqubo yokukhiqiza ingilazi idinga ukulawulwa okunembile kwezinga lokushisa, futhi i-platinamu thermocouple wire isetshenziselwa ukuqapha izinga lokushisa lezingilazi zeglasi ukuze kuqinisekiswe ukukhiqizwa kwengilazi okungaguquki kanye nekhwalithi ephezulu. Ocwaningweni lwesayensi, ukukalwa kwezinga lokushisa okunembile kubalulekile ekuhlolweni nasekuqoqweni kwedatha. Intambo ye-Platinum thermocouple isetshenziselwa ukukala izinga lokushisa ezivivinyweni ezihlukahlukene elabhorethri, ihlinzeka ngedatha ethembekile nenembile.
I-Platinum-rhodium thermocouples (kuhlanganise nezinhlobo B, R, no-S) angamathuluzi abalulekile okulinganisa ngokunembile izinga lokushisa ezinhlelweni zokushisa eziphezulu. Lapho ukhetha ucingo olungcono kakhulu lwe-thermocouple, i-platinum-rhodium thermocouples ngokuvamile iyisinqumo sokuqala ngoba enza kahle ezindaweni ezinzima. I-Platinum-rhodium thermocouples idlala indima ebalulekile ezimbonini ezihlukahlukene, ihlinzeka ngokunemba nokuzinza okudingekayo ekusetshenzisweni kwezinga lokushisa eliphezulu.
Isikhathi sokuthumela: Sep-20-2024