Nayitrogeni kupanga maselo sieve

M'munda wamafakitale, jenereta ya nayitrogeni imagwiritsidwa ntchito kwambiri mu petrochemical, liquefaction ya gasi, zitsulo, chakudya, mankhwala ndi zamagetsi. The mankhwala asafe wa nayitrogeni jenereta angagwiritsidwe ntchito ngati chida mpweya, komanso monga mafakitale zopangira ndi refrigerant, amene ndi zofunika pagulu zipangizo kupanga mafakitale. Njira ya jenereta ya nayitrogeni imagawidwa m'mitundu itatu: njira yosiyanitsa mpweya wozizira kwambiri, njira yolekanitsa nembanemba ndi ma cell sieve pressure change adsorption method (PSA).
Njira yosiyanitsira mpweya wozizira kwambiri ndikugwiritsa ntchito mfundo zowiritsa zosiyanasiyana za mpweya ndi nayitrogeni mumlengalenga, komanso kupanga nayitrogeni wamadzimadzi ndi mpweya wamadzimadzi kudzera mu mfundo ya kukanikiza, firiji komanso kutentha kwapang'onopang'ono ". Njira imeneyi akhoza kutulutsa otsika kutentha madzi asafe ndi madzi mpweya, lalikulu kupanga lonse; kuipa ndi ndalama lalikulu, zambiri ntchito nayitrogeni ndi mpweya kufunika mu zitsulo ndi makampani mankhwala.
Njira yolekanitsa ma membrane ndi mpweya ngati zopangira, pansi pa zovuta zina, pogwiritsa ntchito mpweya ndi nayitrogeni mu nembanemba ndi mitengo yosiyana ya permeability kuti mpweya ndi nayitrogeni zisiyanitse? Njirayi ili ndi ubwino wa dongosolo losavuta, palibe valavu yosinthira, voliyumu yaying'ono, ndi zina zotero, koma chifukwa zinthu zomwe zimagwiritsidwa ntchito ndi nembanemba zimatengera zomwe zimatumizidwa kunja, mtengo wamakono ndi wokwera mtengo ndipo mlingo wolowera ndi wotsika, choncho umagwiritsidwa ntchito makamaka pazinthu zapadera. kuyenda kochepa, monga makina opangira nayitrogeni am'manja.
Molecular sieve pressure adsorption method (PSA) ndi mpweya ngati zopangira, carbon molecular sieve monga adsorbent, ntchito ya pressure adsorption mfundo, kugwiritsa ntchito mpweya wa carbon molecular sieve kwa oxygen ndi nitrogen adsorption ndi oxygen ndi nitrogen kupatukana njira ". Njirayi ili ndi mawonekedwe a kuyenda kosavuta kwa ndondomeko, digiri yapamwamba ya automation, kutsika kwa mphamvu zogwiritsira ntchito mphamvu komanso kuyera kwa nayitrogeni, ndipo ndi teknoloji yomwe imagwiritsidwa ntchito kwambiri. Mpweya usanalowe munsanja ya adsorption ya anthu, madzi mumlengalenga ayenera kuuma kuti achepetse kukokoloka kwa madzi pa sieve ya maselo ndikuwonjezera moyo wautumiki wa sieve ya molekyulu. Mu njira wamba PSA nayitrogeni kupanga, kuyanika nsanja zambiri ntchito kuchotsa chinyezi mu mlengalenga. Pamene nsanja yowumitsa imakhuta ndi madzi, nsanja yowumitsa imawomberedwa ndi mpweya wouma kuti uzindikire kusinthika kwa nsanja yowumitsa.