Njengoko sonke siyazi, umsebenzi ophambili we-thermocouples kukulinganisa nokulawula ukushisa. Zisetyenziswa kakhulu kumashishini afana nepetrochemical, amayeza kunye nemveliso. Kwiinkqubo zoshishino, ukubeka iliso lokushisa ngokuchanekileyo kuhambelana ngokusondeleyo nokulawulwa komgangatho wemveliso kunye nokuphuculwa kwenkqubo yokusebenza kakuhle. Ngoko ke, ucingo lwe-platinum-rhodium thermocouple lukhetho oluthembekileyo noluchanekileyo phakathi kweentlobo ezininzi zeemveliso.
Kodwa yintoniiplatinam-rhodium ucingo lwe-thermocouple? Ngokucacileyo, yi-thermocouple eyenziwe ngeentsimbi ezimbini ezixabisekileyo, iplatinam kunye nerhodium, eyenzelwe ngokukodwa ukumelana nobushushu obuphezulu kunye nokubonelela ngomlinganiselo ochanekileyo weqondo lokushisa phantsi kweemeko ezinzima. Zombini iintsimbi zikhethwe ngononophelo kumanqaku azo aphezulu anyibilikayo, ukuxhathisa kokutya kunye noluhlu olubanzi lobushushu. Iintlobo eziqhelekileyo ze-platinam-rhodium thermocouple wire esizibonayo ziyi-S-type (i-platinum-10% i-rhodium / i-platinum) kunye nohlobo lwe-R (i-platinum-13% i-rhodium / i-platinum) i-thermocouples.
I-Platinum-rhodium thermocouple wire ineempawu ezininzi eziphambili. Okokuqala, iplatinam-rhodium thermocouple wire inokumelana namaqondo obushushu ukuya kuthi ga kwi-1600 ° C (2912 ° F), iyenze ifaneleke kwizicelo zobushushu obuphezulu obufana nokucwangciswa kobushushu, ukujongwa kwesithando somlilo kunye nokuveliswa kwe-aerospace. Okwesibini, ukudityaniswa kweplatinam kunye nerhodium kwintambo ye-thermocouple kuqinisekisa ukuzinza okugqwesileyo kunye nokuphindaphinda komlinganiselo wobushushu, naphantsi kweemeko ezinzima zokusebenza. Ukongeza, iplatinam-rhodium thermocouple wire inokumelana ne-corrosion eyomeleleyo, kunye nexesha lokuphendula ngokukhawuleza, kwaye ucingo lunokufikelela kumlinganiselo okhawulezayo nochanekileyo wobushushu, obalulekileyo kwiinkqubo zamashishini ezinamandla.
I-Platinum-rhodium thermocouple wire isetyenziswa ngokubanzi kwiindawo zoshishino ezineemfuno eziphezulu kakhulu zokulinganisa ubushushu obuphezulu kunye nokulawula. Ngokomzekelo, kwishishini lokunyanga ukushisa, i-platinum-rhodium thermocouple wire isetyenziselwa ukubeka iliso kunye nokulawula ubushushu beziko, ii-ovens kunye neenkqubo zokunyanga ukushisa ukuze kuqinisekiswe ukuba izinto ezifunekayo eziphathekayo ziyafezekiswa. Ukongeza, ishishini le-aerospace lixhomekeke kwiplatinam-rhodium ngocingo lokujonga ubushushu obuchanekileyo ngexesha lenkqubo yokwenziwa kwezixhobo zenqwelomoya, iinxalenye zenjini kunye nezinye izinto eziphambili ze-aerospace. Imveliso yeglasi kunye ne-ceramic yokuvelisa isetyenziselwa ukujonga ubushushu beekonti kunye neziko ezisetyenziselwa ukuveliswa kweeglasi, iiseramics kunye nezixhobo ezichasayo.
Kufuphi,iplatinam-rhodium ucingo lwe-thermocouplesisixhobo esibalulekileyo sokulinganisa ubushushu obuchanekileyo kunye nolawulo kwindawo yoshishino lobushushu obuphezulu. Ukusebenza kwayo okugqwesileyo, uluhlu olubanzi lobushushu kunye nokuthembeka kwenza kube lukhetho lokuqala kumashishini aneemfuno eziphezulu kakhulu zokuchaneka kunye nokuzinza. Ingaba ubandakanyeka ekuphatheni ukushisa, ukuveliswa kwe-aerospace, i-petrochemical processing, okanye amanye amashishini afuna imilinganiselo yokushisa ephezulu, i-platinum-rhodium thermocouple wire inikezela ukuchaneka kunye nokuqina okufunekayo ukuqinisekisa ukusebenza kwenkqubo kunye nomgangatho wemveliso.
Ixesha lokuposa: Jun-13-2024