Iindaba

Izixhobo zokwenza i-nitrogen zifumaneka ngokwahlula umoya kunye ne-nitrogen kwizinto eziluhlaza zisebenzisa umoya njengento ekrwada.
Zintathu iindidi zenitrogen kwimizi-mveliso:
◆Cryogenic air yokwahlula initrogen
I-nitrogen yokwahlula umoya we-Cryogenic yindlela yokuvelisa i-nitrogen yemveli ebikho kumashumi eminyaka akutshanje.Isebenzisa umoya njengento ekrwada, icinezelwe, icocwe, emva koko isebenzise ukutshintshiselana ngobushushu ukunyibilikisa umoya kumoya olwelo.Umoya elulwelo ubukhulu becala ngumxube weoksijini engamanzi kunye nenitrogen engamanzi, eneendawo ezahlukeneyo zokubila zeoksijini elulwelo kunye nenitrogen engamanzi (indawo yokubila yangaphambili yi -183 ° C kwi-1 atm, kwaye le yokugqibela yi -196 ° C) , kunye ne-distillation ngomoya ongulwelo Bahlule ukufumana initrogen.Isixhobo sokuvelisa i-nitrogen yokwahlula umoya we-cryogenic sinzima, sigubungela ummandla omkhulu, sineendleko ezinkulu, kwaye inotyalo-mali olukhulu kwizixhobo zokusebenza, iindleko eziphezulu zokusebenza, imveliso yegesi ephantsi (iiyure ezili-12 ukuya kwezi-24), iimfuno zofakelo oluphezulu kunye nomjikelo omde.Izixhobo ezibanzi, ukufakwa kunye nezinto ezisisiseko, izixhobo ezingaphantsi kwe-3500Nm3 / h, ubungakanani botyalo-mali lwezixhobo ze-PSA zeenkcukacha ezifanayo ngama-20% ~ 50% ngaphantsi kweyunithi yokwahlula umoya we-cryogenic.Isityalo se-nitrogen sokwahlula umoya we-cryogenic sifanelekile kwimveliso ye-nitrogen yemizi-mveliso emikhulu, ngelixa imveliso ye-nitrogen ephakathi kunye nencinci ayinayo uqoqosho.

◆I-nitrogen yesihluzo semolekyuli
Indlela apho umoya usetyenziswa njengento ekrwada, i-carbon molecular sieve isetyenziswa njenge-adsorbent, i-press swing adsorption principle isetyenziswa, kwaye i-adsorption ekhethiweyo ye-oxygen kunye ne-nitrogen nge-carbon molecular sieve isetyenziselwa ukwahlula i-nitrogen kunye ne-oxygen. ngokuqhelekileyo ibizwa ngokuba yiPSA imveliso yenitrogen.Le ndlela yiteknoloji entsha yokuvelisa initrogen eyaphuhliswa ngokukhawuleza kwi-1970s.Xa kuthelekiswa nendlela yokuvelisa i-nitrogen yendabuko, inenkqubo elula, iqondo eliphezulu lokuzenzekelayo, ukuveliswa kwegesi ngokukhawuleza (i-15 ukuya kwimizuzu engama-30), ukusetyenziswa kwamandla aphantsi, ukucoceka kwemveliso kunokulungelelaniswa ngokweemfuno zomsebenzisi kuluhlu olubanzi, ukusebenza okulula kunye nokugcinwa. , ukusebenza Iindleko eziphantsi kunye nokuguquguquka okunamandla kwesixhobo, ngoko ke kukhuphisana kwizixhobo zokuvelisa i-nitrogen ngaphantsi kwe-1000Nm3 / h.Iyathandwa ngakumbi phakathi kwabasebenzisi abancinci nabaphakathi kwenitrogen.I-nitrogen ye-PSA ibe lukhetho lokuqala kubasebenzisi benitrogen abaphakathi nabancinci.indlela.

◆Initrogen yokwahlula umoya kwi-Membrane
Umoya usetyenziswa njengento ekrwada, kwaye phantsi kweemeko ezahlukeneyo zoxinzelelo, iigesi zeempawu ezahlukeneyo ezifana neoksijini kunye nenitrogen zinezinga elahlukileyo lokungena kwi-membrane ukwahlula ioksijini kunye nenitrogen.Xa kuthelekiswa nezinye izixhobo zokwenza i-nitrogen, ineenzuzo zesakhiwo esilula, umthamo omncinci, akukho valve yokutshintsha, ukugcinwa okuncinci, ukuveliswa kwegesi ngokukhawuleza (≤3 imizuzu), ukunyuka kwamandla okulungeleyo, njl. Kufanelekile ngokukodwa ukucoceka kwe-nitrogen ≤ 98 I-% yabasebenzisi be-nitrogen abaphakathi nabancinci banelona xabiso lihle kakhulu / umlinganiselo wokusebenza.Xa ukucoceka kwenitrogen kungaphezu kwe-98%, ingaphezulu kwe-15% ephezulu kune-PSA yezixhobo zokwenza i-nitrogen yenkcazo efanayo.