1. Cryogenic mpweya kulekana nayitrogeni jenereta
The cryogenic air separation nitrogen jenereta ndi njira yachikhalidwe yopanga nayitrogeni ndipo ili ndi mbiri pafupifupi zaka makumi angapo. Pogwiritsa ntchito mpweya ngati zopangira, pambuyo pa kuponderezedwa ndi kuyeretsedwa, mpweya umasungunuka kukhala mpweya wamadzimadzi kupyolera mu kusinthana kutentha.
Mpweya wamadzimadzi umakhala wosakanikirana ndi mpweya wamadzimadzi ndi nayitrogeni wamadzimadzi. Pogwiritsa ntchito kusiyana kwa malo otentha pakati pa mpweya wamadzimadzi ndi nayitrogeni wamadzimadzi (pa 1 atmosphere pressure, kuwira kwa woyamba ndi -183° C ndipo yachiwiriyo ndi -196° C), nayitrogeni amapezedwa kudzera mu kupatukana kwa mpweya wa distillation. Zida zopangira nayitrogeni za cryogenic batch ndizovuta, zimakhala m'dera lalikulu, zimakhala ndi ndalama zambiri zomanga, zimafuna ndalama zambiri za nthawi imodzi pazida, zimakhala ndi ndalama zambiri zogwirira ntchito, zimapanga mpweya pang'onopang'ono (maola 12 mpaka 24), zimakhala ndi zofunikira zowonjezera komanso nthawi yayitali. Poganizira zinthu zosiyanasiyana monga zida, unsembe ndi zomangamanga, zida ndi mphamvu ya 3,500 Nm3/h kapena zochepa, ndalama lonse mayunitsi PSA mfundo yomweyo ndi 20% mpaka 50% m'munsi kuposa mayunitsi cryogenic mpweya kulekana. Chipangizo cha cryogenic cholekanitsa nayitrogeni ndichoyenera kupanga nayitrogeni m'mafakitale akuluakulu, koma sizotsika mtengo popanga nayitrogeni wapakatikati ndi pang'ono.
2. Jenereta wa nayitrogeni wa molekyulu:
Kupanga nayitrogeni PSA ndi njira yomwe imagwiritsa ntchito mpweya ngati zopangira komanso ma sieve a carbon molecular monga adsorbents. Imatengera mfundo ya kuthamanga kwa ma swing adsorption ndipo imagwiritsa ntchito ma adsorption a carbon molecular sieves a oxygen ndi nitrogen kuti alekanitse nayitrogeni ndi oxygen. Njira iyi ndi mtundu watsopano waukadaulo wopanga nayitrogeni womwe udakula mwachangu m'ma 1970.
Poyerekeza ndi njira zachikhalidwe zopangira nayitrogeni, zimakhala ndi njira yosavuta, makina apamwamba kwambiri, kupanga gasi mwachangu (mphindi 15 mpaka 30), kugwiritsa ntchito mphamvu zochepa, kuyeretsa kwazinthu zosinthika mkati mwamitundu yosiyanasiyana malinga ndi zomwe wogwiritsa ntchito amafuna, kugwiritsa ntchito bwino ndikukonza, kutsika mtengo, komanso kukwanira kwa zida.
3. Jenereta ya nayitrogeni yolekanitsa mpweya
Pogwiritsa ntchito mpweya monga zopangira, pansi pa zovuta zina, mpweya ndi nayitrogeni ndi mpweya wina wokhala ndi katundu wosiyana umalekanitsidwa potengera mwayi wawo wodutsa mu membrane.
Poyerekeza ndi zida zina zopangira ma haidrojeni, ili ndi maubwino osavuta, voliyumu yaying'ono, osasintha valavu, kukonza pang'ono, kupanga gasi mwachangu (mphindi 3), komanso kukulitsa mphamvu. Ndizoyenera makamaka kwa ogwiritsa ntchito ang'onoang'ono okhala ndi nitrogen chiyero cha 98%. Kumbali ina, kuyera kwa nayitrogeni kukakhala pamwamba pa 98%, mtengo udzakhala woposa 15% kuposa wa makina opangira nayitrogeni a PSA amtundu womwewo.
Pazofuna zilizonse za oxygen/nitrogen, chonde tithandizeni :
Anna Tel./Whatsapp/Wechat:+86-18758589723
Email :anna.chou@hznuzhuo.com
Nthawi yotumiza: May-20-2025