Ua hauj lwm txoj cai ntawm PSA cov pa oxygen concentrate: molecular sieve physical adsorption thiab desorption tshuab siv. coj kom zoo dua cov pa oxygen thiab nitrogen hauv cov huab cua sib txawv hauv adsorption peev (zeolite) thiab adsorb muaj peev xwm. Molecular sieve yog ntim rau hauv cov pa oxygen, uas tuaj yeem nqus tau nitrogen hauv cov pa thaum cov pa, thiab cov pa uas tsis muaj zog ntxiv, uas yuav dhau mus ua purity oxygen tom qab kho tshuaj. Molecular sieve hauv decompression yuav tsum tau muab nitrogen emissions rov qab rau cov cua kub cua, tom ntej no yuav tsum tau adsorbed nitrogen thiab oxygen ntau lawm, cov txheej txheem tseem ceeb yog cyclical dynamic voj voog, molecular sieve tsis haus.
Cov txheej txheem ntawm oxygen qhuav yog raws li nram no:
Cua nkag tau rau hauv compressor los ntawm tag nrho cov lim, tom qab compressor cua siab nce nkag txias, tom qab txias, cua ntawm compressed mus rau adsorption ntauwd (molecular sieve), adsorpt seperately.
Tom qab adsorption seperation, qhov chaw ntawm cov pa roj nkag mus rau hauv cov pa oxygen, ntu ntawm flowmeter, rau lwm qhov rov adsorption ntauwd tu (tsom), thaum lub sijhawm no, nitrogen, thiab lwm yam khoom qaug hauv kev tso dej silencer.
