Sefa ya Mamolekyulu a Mpweya

1. tinthu tating'onoting'ono: 1.0-1.3mm

2. Kuchuluka kwa zinthu: 640-680KG/m³

3. Nthawi yoyamwa: 2x60S

4.mphamvu yokakamiza: ≥70N/ chidutswa

Cholinga: Sieve ya Carbon Molecular ndi njira yatsopano yolimbikitsira mpweya yomwe idapangidwa m'ma 1970, ndi chinthu chabwino kwambiri chopanda mpweya, Carbon Molecular Sieves (CMS) chomwe chimagwiritsidwa ntchito kulekanitsa nayitrogeni wowonjezera mpweya, pogwiritsa ntchito njira ya nayitrogeni wochepa kutentha kwa chipinda, kuposa njira yachikhalidwe ya nayitrogeni wopanikizika kwambiri yomwe imakhala ndi ndalama zochepa zogulira, liwiro lalikulu lopanga nayitrogeni komanso mtengo wotsika wa nayitrogeni. Chifukwa chake, ndi njira yabwino kwambiri yopangira nayitrogeni wodzaza mpweya (PSA) yomwe imakonda kwambiri, nayitrogeni iyi imagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala, mafuta ndi gasi, mafakitale amagetsi, mafakitale azakudya, makampani opanga malasha, makampani opanga mankhwala, makampani opanga zingwe, mankhwala otenthetsera zitsulo, mayendedwe ndi malo osungira ndi zina.

Mfundo yogwirira ntchito: Sieve ya molekyulu ya kaboni ndi kugwiritsa ntchito mawonekedwe owunikira kuti akwaniritse kulekanitsa kwa mpweya ndi nayitrogeni. Mu sieve ya molekyulu, kulowetsedwa kwa mpweya wodetsedwa, waukulu ndi wosasangalatsa umagwira ntchito ya njira yokhayo, mamolekyu olowetsedwa adzasamutsidwa kupita ku ma micropores ndi ma submicropores, ma micropores ndi ma submicropores ndiye kuchuluka kwenikweni kwa kulowetsedwa. Monga momwe zasonyezedwera pachithunzi chapitacho, sieve ya molekyulu ya kaboni ili ndi ma micropores ambiri, omwe amalola mamolekyu okhala ndi kukula kochepa kwa kinetic kufalikira mwachangu m'ma pores, pomwe akuchepetsa kulowa kwa mamolekyu akuluakulu. Chifukwa cha kusiyana kwa kuchuluka kwa kufalikira kwa mamolekyulu a mpweya amitundu yosiyanasiyana, zigawo za kusakaniza kwa mpweya zimatha kulekanitsidwa bwino. Chifukwa chake, kufalikira kwa ma micropores mu sieve ya molekyulu ya kaboni kuyenera kuyambira 0.28 nm mpaka 0.38nm malinga ndi kukula kwa molekyulu. Mkati mwa kukula kwa micropores, mpweya ukhoza kufalikira mwachangu mu pore kudzera mu pore orifice, koma nayitrogeni ndi yovuta kudutsa mu pore orifice, kuti akwaniritse kulekanitsa kwa mpweya ndi nayitrogeni. Kukula kwa ma pore a micropore ndiye maziko a kulekanitsa kwa mpweya ndi nayitrogeni mu sieve ya carbon molecular, ngati kukula kwa ma pore kuli kwakukulu kwambiri, mpweya ndi nayitrogeni zimakhala zosavuta kulowa mu sieve ya molecular micropore, sizingathenso kusewera gawo lolekanitsa; Kukula kwa ma pore ndi kochepa kwambiri, mpweya, nayitrogeni sangalowe mu sieve ya micropore, komanso sizingathenso kusewera gawo lolekanitsa.

Chipangizo cha nayitrogeni cholekanitsa mpweya wa carbon molecular sefa: chipangizochi chimadziwika kuti makina a nayitrogeni. Njira yaukadaulo ndi njira yotsatsira mpweya (PSA method) pa kutentha kwabwinobwino. Kutsatsira mpweya (pressure swing adsorption) ndi njira yotsatsira mpweya popanda kutentha. Mphamvu yotsatsira mpweya wa carbon molecular sefa ku zigawo zomwe zimatsatsira mpweya (makamaka mamolekyulu a okosijeni) imatsatsira mpweya panthawi ya kupanikizika ndi kupanga mpweya chifukwa cha mfundo yomwe ili pamwambapa, komanso kutsatsira mpweya panthawi ya kupsinjika ndi kutulutsa mpweya, kuti ipangenso mpweya wa carbon molecular sefa. Nthawi yomweyo, nayitrogeni wolemera mu gawo la mpweya wa bedi umadutsa pabedi kuti ukhale mpweya wopangidwa, ndipo sitepe iliyonse ndi ntchito yozungulira. Ntchito yozungulira ya PSA imaphatikizapo: kutsatsira mpweya ndi kupanga mpweya; Kupanikizika kofanana; Kutsika pansi, kutulutsa mpweya; Kenako kupanikizika, kupanga mpweya; Magawo angapo ogwira ntchito, kupanga njira yozungulira. Malinga ndi njira zosiyanasiyana zobwezeretsanso, zitha kugawidwa m'njira zobwezeretsanso mpweya ndi njira yokonzanso mpweya. Zipangizo za makina opangira nayitrogeni a PSA malinga ndi zosowa za ogwiritsa ntchito zitha kuphatikizapo njira yoyeretsera mpweya, njira yothira madzi pogwiritsa ntchito mphamvu, njira yowongolera ma valve (kubwezeretsa mpweya pogwiritsa ntchito vacuum kumafunikanso kukhala ndi pampu yotulutsa mpweya), ndi njira yoperekera nayitrogeni.