Njengoba sonke sazi, umsebenzi oyinhloko wama-thermocouple ukukala nokulawula izinga lokushisa. Asetshenziswa kabanzi ezimbonini ezifana ne-petrochemical, i-pharmaceutical kanye ne-production. Ezinqubweni zezimboni, ukuqapha izinga lokushisa okunembile kuhlobene eduze nokulawulwa kwekhwalithi yomkhiqizo kanye nokuthuthukiswa kokusebenza kahle kwenqubo. Ngakho-ke, ucingo lwe-thermocouple lwe-platinum-rhodium luyisinqumo esithembekile nesinembile phakathi kwezinhlobo eziningi zomkhiqizo.
Kodwa kuyiniintambo ye-thermocouple ye-platinum-rhodiumNgokusobala, iyi-thermocouple eyakhiwe ngezinsimbi ezimbili eziyigugu, i-platinum ne-rhodium, eziklanyelwe ngokukhethekile ukumelana namazinga okushisa aphezulu futhi zinikeze isilinganiso esinembile sokushisa ngaphansi kwezimo ezimbi kakhulu. Zombili izinsimbi zikhethwa ngokucophelela ngenxa yamaphuzu azo aphezulu okuncibilika, ukumelana nokugqwala kanye nobubanzi bokushisa obubanzi. Izinhlobo ezivame kakhulu ze-platinum-rhodium thermocouple wire esizibonayo yi-S-type (platinum-10% rhodium/platinum) kanye ne-R-type (platinum-13% rhodium/platinum).
Intambo ye-thermocouple ye-platinum-rhodium inezici eziningana ezibalulekile. Okokuqala, intambo ye-thermocouple ye-platinum-rhodium ingamelana namazinga okushisa afinyelela ku-1600°C (2912°F), okwenza ifaneleke ukusetshenziswa kwezinga lokushisa eliphezulu njengokucubungula okushisayo, ukuqapha isithando somlilo kanye nokukhiqizwa kwezindiza. Okwesibili, ukuhlanganiswa kwe-platinum ne-rhodium kuntambo ye-thermocouple kuqinisekisa ukuzinza okuhle kakhulu kanye nokuphindaphindwa kokulinganiswa kwezinga lokushisa, ngisho nangaphansi kwezimo zokusebenza ezinzima. Ngaphezu kwalokho, intambo ye-thermocouple ye-platinum-rhodium nayo inokumelana okuqinile kokugqwala, kanye nesikhathi sokuphendula okusheshayo, futhi intambo ingafinyelela ukulinganisa izinga lokushisa okusheshayo nokunembile, okubalulekile ezinqubweni zezimboni eziguquguqukayo.
Intambo ye-thermocouple ye-platinum-rhodium isetshenziswa kabanzi emikhakheni yezimboni enezidingo eziphakeme kakhulu zokulinganisa nokulawula izinga lokushisa eliphezulu. Isibonelo, embonini yokwelapha ukushisa, intambo ye-thermocouple ye-platinum-rhodium isetshenziselwa ukuqapha nokulawula izinga lokushisa lama-oven, ama-oven kanye nezinqubo zokwelashwa kokushisa ukuqinisekisa ukuthi izakhiwo zezinto ezidingekayo ziyafezwa. Ngaphezu kwalokho, imboni yezindiza ithembele kuntambo ye-platinum-rhodium ukuze iqaphe izinga lokushisa elinembile ngesikhathi senqubo yokukhiqiza izingxenye zezindiza, izingxenye zenjini kanye nezinye izinto ezibalulekile zezindiza. Imboni yokukhiqiza ingilazi kanye ne-ceramic iyisebenzisela ukuqapha izinga lokushisa lama-oven nama-oven asetshenziswa ekukhiqizeni izinto zengilazi, izinto zobumba kanye nezinto eziphikisayo.
Kafushane,intambo ye-thermocouple ye-platinum-rhodiumiyithuluzi elibalulekile lokulinganisa izinga lokushisa elinembile kanye nokulawula emkhakheni wezimboni oshisa kakhulu. Ukusebenza kwayo okuhle kakhulu, ububanzi bokushisa obubanzi kanye nokuthembeka kwenza kube ukukhetha kokuqala kwezimboni ezinezidingo eziphakeme kakhulu zokunemba nokuzinza. Kungakhathaliseki ukuthi uhilelekile ekwelapheni ukushisa, ekukhiqizeni izindiza, ekucubungulweni kwe-petrochemical, noma kwezinye izimboni ezidinga ukulinganiswa kwezinga lokushisa eliphezulu, intambo ye-platinum-rhodium thermocouple inikeza ukunemba nokuqina okudingekayo ukuqinisekisa ukusebenza kahle kwenqubo kanye nekhwalithi yomkhiqizo.
Isikhathi sokuthunyelwe: Juni-13-2024
