Isikhwama sokuhlunga siyisici esiyinhloko sesihlungi sesikhwama, futhi izindleko zaso zibalelwa ku-10% kuya ku-15% wezindleko zempahla. Ukukhethwa kwesikhwama sokuhlunga akuhlobene nje nokusebenza kahle kokukhipha uthuli, kodwa futhi kuthinta ngokuqondile izindleko zokusebenza, impilo yesevisi kanye nomphumela wokuvikelwa kwemvelo jikelele wempahla. Lapho ukhetha isikhwama sokuhlunga uthuli, udinga ukucabangela izici eziningi, okuhlanganisa izinga lokushisa lokusebenza, umswakama, ukwakheka kwegesi, izici zothuli kanye nezimo zokusebenza zomqoqi wothuli.
Izinga lokushisa legesi
Igesi lokushisa elivamile (<130℃)
Ngaphansi kwalesi simo, ungakhetha isikhwama sokuhlunga esivamile sokushisa, njengesikhwama sokuhlunga inaliti ye-polyester. Lolu hlobo lwesikhwama sokuhlunga lusebenza kahle endaweni yokusebenza engaphansi noma elingana ne-130 degree, futhi izinga lokushisa elisheshayo lingafinyelela ku-150 degree. Ilungele izitshalo zikasimende, izimayini zamalahle, izitshalo zensimbi nezinye izimboni.
Igesi lokushisa elimaphakathi (130℃-180 degree)
Ungakhetha isikhwama sothuli se-PPS, isikhwama sokuhlunga se-PPS ne-PTFE. Izikhwama ze-PPS zinokungazweli kahle kwamakhemikhali kanye nokumelana ne-hydrolysis, futhi zilungele imboni yamakhemikhali wamalahle, izimboni zokuphehla amandla amalahle nezinye izikhathi.
Igesi lokushisa eliphezulu (180-280 degrees)
Ezimweni zokusebenza zokushisa okuphezulu, izikhwama zokuhlunga ukushisa okuphezulu zidinga ukukhethwa.
Ultra-high temperature gas (>280 degree)
Izimo zokusebenza eziphezulu-eziphezulu zinezidingo eziphezulu kakhulu zezikhwama zokuhlunga.
Umswakama wegesi
Kumagesi omswakamo aphezulu-(umswakama ohlobene negesi ungaphezu kuka-80%), uma usezingeni lokushisa eliphezulu, ikakhulukazi uma uthuli-luqukethe i-SO2, ukupholisa kwegesi kuzokhiqiza ukuminyana. Lokhu ngeke kubangele kuphela ukukala nokuvala ebusweni besikhwama sokuhlunga, kodwa futhi kugxumeke izinto zokwakha, ngakho-ke kufanele kukhokhwe ukunakwa okukhethekile. Endaweni enomswakama ophezulu, isikhwama sokuhlunga uthuli sidinga ukumelana nomswakama omuhle ukuze kuvinjelwe ukujiya kanye nokugqwala okubangelwa umswakama. Ungakhetha izinto ezinokumelana nokuswakama okuhle njenge-PPS ne-PTFE.
Ukwakheka kwegesi
Amagesi ahlukahlukene we-furnace flue kanye namagesi emfucumfucu yamakhemikhali avame ukuqukatha izakhi zamakhemikhali ezihlukahlukene njengama-acids, ama-alkali, ama-oxidants, nezinyibilikisi eziphilayo. Uma kukhona amagesi agqwalayo ezimeni zokusebenza, udinga ukukhetha izinto ezinokumelana nokugqwala kwamakhemikhali, njenge-PTFE, PPS, njll.