Nitrogen ntau lawm los ntawm cov pa roj carbon molecular sieves yog ib qho adsorbent ntawm cov khoom siv nitrogen uas siv lub siab viav vias adsorption kom cais nitrogen los ntawm huab cua. Kev sib cais ntawm cov pa thiab nitrogen hauv huab cua feem ntau yog ua raws li qhov sib txawv ntawm qhov sib txawv ntawm ob lub gases ntawm qhov chaw ntawm cov pa roj carbon molecular sieve. Cov kab me me (O2) roj molecules diffuse sai dua, thiab ntau cov pa nkag mus rau hauv micropores ntawm carbon zeolite. Cov roj molecules nrog cov kab uas loj dua (N2) muaj qhov sib kis qeeb qeeb thiab tsawg qhov pores hauv cov pa roj carbon zeolites, yog li cov khoom siv nitrogen-nplua nuj tuaj yeem tau txais hauv theem roj. Yog li ntawd, siv cov khoom ntawm carbon molecular sieve nitrogen ntau lawm rau adsorb oxygen thiab nitrogen nyob rau hauv ib co sij hawm, lub siab tsis siv neeg tswj system ua siab adsorption raws li ib tug programmable ib theem zuj zus, thiab lub cyclic txheej txheem ntawm atmospheric tsom xam ua tiav cov kev sib cais ntawm nitrogen thiab nitrogen. Oxygen. Tau txais qhov xav tau siab purity nitrogen.
Raws li qhov sib txawv nqus thiab diffusion tus nqi ntawm oxygen thiab nitrogen, qhov adsorption ntawm O2 mus txog qhov sib npaug hauv lub sijhawm luv luv. Nyob rau hauv cov ntaub ntawv no, lub peev xwm adsorption ntawm N2 yog me me, thiab lub sij hawm ntawm cov roj ntau lawm yog luv, uas muaj peev xwm ua kom cov roj ntau lawm ntawm carbon molecular sieve. Txawm li cas los xij, qhov no kuj nce qhov zaus ntawm kev ua haujlwm ntawm lub valve, yog li kev ua haujlwm ntawm lub valve kuj tseem ceeb heev. Feem ntau, lub sij hawm adsorption yog 30-120 vib nas this. Rau me me high-purity nitrogen generators, luv luv roj ntau lawm lub sij hawm raug pom zoo, thaum rau loj low-concentration nitrogen generators, ntev roj ntau lawm lub sij hawm raug pom zoo.
Nitrogen ntau lawm los ntawm carbon molecular sieves tsis tsuas muaj kinetic nkaus xwb, tab sis kuj muaj equilibrium adsorption. Lub siab ib nrab ntawm cov khoom adsorbed yog siab, thiab lub peev xwm adsorption kuj siab. Yog li ntawd, lub siab adsorption yog qhov zoo, tab sis lub siab adsorption siab dhau lawm, thiab cov kev xav tau ntawm cov huab cua compressor tau nce ntxiv. Tsis tas li ntawd, qhov xav tau ntawm adsorption siab ntawm ob txheej txheem kuj txawv. Raws li ntau yam, nws raug pom zoo tias qhov adsorption siab ntawm cov txheej txheem atmospheric yog 5-8kg / cm2. Lub adsorption siab ntawm cov txheej txheem nqus tsev yog 3-5Kg/cm-2.