空氣經過空氣壓縮機壓縮之後，獲取到一定壓力，儲存在空氣儲罐中穩定瞭壓力，再經過壓縮空氣凈化系統（高效除油器、除塵過濾器、空氣乾燥機、微油污過濾器、精密過濾器、活性炭過濾器、）對空氣中的油水、粉塵等雜質進行凈化處理，最終達到一定指標的潔凈壓縮空氣，儲存在空氣緩沖罐中，再經過氮氧分離系統對氮氣進行吸附並且排出，將氧氣預先儲存於氧氣工藝罐，從而對空氣中的氮氣和氧氣進行分離，得到產品氧氣，最後再通過增壓系統讓壓力較低的氧氣獲取較高的壓力。

ng>Principles:
ng>PSA oxygen generator uses zeolite molecular sieve as sorbent, produces oxygen by making use of the PSA principle. Under certain pressure, zeolite molecular sieve has different oxygen/nitrogen adsorption capacity, i.e. much more nitrogen adsorption capacity than oxygen adsorption capacity. PLC controls pneumatic valve on/off to realize two towers alternate adsorption and desorption as per pressure change, carries out oxygen/nitrogen separation and produces oxygen with desired purity.