Zogulitsa zonse zamadzimadzi zolekanitsa mpweya zimatha kukhala chimodzi kapena zingapo za okosijeni wamadzimadzi, nayitrogeni yamadzimadzi ndi argon yamadzimadzi, ndipo mfundo yake ndi iyi:
Pambuyo pa kuyeretsedwa, mpweya umalowa m'bokosi lozizira, ndipo m'malo otenthetsera kutentha, umasinthasintha kutentha ndi mpweya wa reflux kuti ufikire kutentha kwapafupipafupi ndipo umalowa m'munsi, kumene mpweya umalekanitsidwa poyamba kukhala mpweya wa nayitrogeni ndi mpweya wamadzimadzi. , nayitrogeni wa pamwamba amaufupikitsidwa kukhala nayitrogeni wamadzi mu evaporator, ndipo mpweya wamadzi wa mbali inayo umasanduka nthunzi. Gawo la nayitrogeni wamadzimadzi limagwiritsidwa ntchito ngati madzi a reflux a m'munsi, ndipo gawo lina limasungunuka kwambiri, ndipo pambuyo pa kugwedezeka, limatumizidwa pamwamba pa chigawo chapamwamba monga madzi a reflux akumtunda, ndi gawo lina. amachira ngati mankhwala.