Cov khoom ntawm tag nrho cov-kua cua sib cais chav tsev tuaj yeem yog ib lossis ntau dua ntawm cov pa oxygen, kua nitrogen thiab kua argon, thiab nws txoj cai yog raws li hauv qab no:
Tom qab purification, huab cua nkag mus rau hauv lub thawv txias, thiab nyob rau hauv lub ntsiab tshav kub exchanger, nws exchanges tshav kub nrog cov reflux gas kom mus txog rau ib tug ze liquefaction kub thiab nkag mus rau hauv lub qis kem, qhov twg cov huab cua yog preliminaryly cais rau nitrogen thiab oxygen-nplua nuj kua huab cua. , sab saum toj nitrogen yog condensed rau hauv kua nitrogen nyob rau hauv lub condensing evaporator, thiab cov kua oxygen nyob rau sab nraud yog evaporated. Ib feem ntawm cov kua nitrogen yog siv los ua cov kua reflux ntawm sab qis, thiab ib feem ntawm nws yog supercooled, thiab tom qab throttling, nws raug xa mus rau sab sauv sab sauv raws li cov kua reflux ntawm sab sauv, thiab lwm qhov. yog zoo li ib yam khoom.