Lub tshuab hluav taws xob nitrogen yog kev siv roj sib cais siab heev.Qhov zoo tshaj plaws cov pa roj carbon molecular sieve (CMS) yog siv los ua cov adsorbent, thiab cov pa roj nitrogen siab yog npaj los ntawm kev sib cais cov huab cua ntawm qhov kub thiab txias raws li lub hauv paus ntsiab lus ntawm siab viav vias adsorption (PSA).
Qhov diffusion tus nqi ntawm oxygen thiab nitrogen roj molecules nyob rau saum npoo ntawm molecular sieve yog txawv.Cov roj molecules nrog me me diameters (O2) muaj ib tug ceev diffusion tus nqi, ntau ntawm cov micropores nkag mus rau hauv cov pa roj carbon molecular sieve, thiab diffusion tus nqi ntawm cov loj txoj kab uas hla roj molecules (N2).Tsawg dua, muaj tsawg dua micropores nkag mus rau carbon molecular sieve.Qhov kev xaiv adsorption sib txawv ntawm nitrogen thiab oxygen los ntawm carbon molecular sieve ua rau kom cov pa oxygen nyob rau hauv lub adsorption theem nyob rau hauv ib lub sij hawm luv luv, lub enrichment ntawm nitrogen nyob rau hauv lub gas theem, thiaj li hais tias cov pa thiab nitrogen yog sib cais, thiab cov roj theem enriched. nitrogen tau txais raws li PSA mob.
Tom qab ib lub sij hawm, lub adsorption ntawm oxygen los ntawm molecular sieve yog sib npaug.Raws li qhov sib txawv adsorption muaj peev xwm ntawm cov pa roj carbon molecular sieve rau cov roj adsorbed nyob rau hauv qhov sib txawv pressures, lub siab yog txo kom deactivate cov carbon molecular sieve, thiab cov txheej txheem yog regeneration.Raws li qhov sib txawv regeneration siab, nws muaj peev xwm muab faib ua lub tshuab nqus tsev regeneration thiab atmospheric siab regeneration.Atmospheric regeneration pab txhawb kev ua kom tiav ntawm molecular sieves, ua kom yooj yim kom tau txais cov pa roj purity siab.
Lub siab viav vias adsorption nitrogen generator (hu ua PSA nitrogen generator) yog lub tshuab hluav taws xob nitrogen tsim thiab tsim raws li kev siv tshuab siab viav vias adsorption.Feem ntau, ob lub adsorption towers txuas nrog nyob rau hauv parallel, thiab tsis siv neeg tswj system nruj me ntsis tswj lub sij hawm raws li ib tug programmable ib theem zuj zus, alternately ua siab adsorption thiab decompression regeneration, ua tiav nitrogen thiab oxygen sib cais, thiab tau txais high-purity nitrogen gas.
Post lub sij hawm: Sep-11-2021