Momwe mungasankhire jenereta yoyenera ya nayitrogeni

Musanasankhe zomwe zikuyenera kufotokozedwa mu chitsanzo (monga Kupanga kwa Nayitrogeni pa ola limodzi, kuyera kwa nayitrogeni, kuthamanga kwa mpweya, mame point), tiyenera kuyang'ana kwambiri pa kusanthula kofananira kwa magwiridwe antchito ndi makhalidwe ajenereta ya nayitrogeni, ndipo sankhani bwino kutengera momwe zinthu zilili panopa.

Zofunikira pa nayitrogeni m'mafakitale osiyanasiyana

A, Makampani opanga zitsulo ndi zitsulo

Mafakitale ena amafuna nayitrogeni yokhala ndi chiyero choposa 99.5%, pomwe ena amafuna nayitrogeni yapamwamba kwambiri yokhala ndi chiyero choposa 99.9995% ndi dothi lochepera -65°C. Izi ziyenera kutsimikiziridwa kutengera momwe kasitomala amapangira.

B, Makampani a mankhwala ndi zinthu zatsopano

Kawirikawiri, zofunikira pa kuyera kwa nayitrogeni sizokwera kwambiri, ndipo kuyera kochuluka kopitilira 98% kungagwiritsidwe ntchito. Komabe, zofunikira zenizeni zimadalira njira yopangira ya kasitomala.

C, Makampani ogulitsa zakudya ndi mankhwala

Makampani ambiri azakudya alibe zofunikira zambiri za nayitrogeni, ndipo kuyera kwa 99.5% ~ 99.9% kumatha kukwaniritsa zofunikira. Makampani ochepa azakudya ayenera kusankha kuyera kwa 99.99% chifukwa cha zofunikira pakupanga. Makampani opanga mankhwala nthawi zambiri amafuna kuyera kwa nayitrogeni kwa 99.99% ndipo amafuna kuti ipangidwe ndi chitsulo chosapanga dzimbiri.

Makampani a zamagetsi

Kawirikawiri, zofunikira za nayitrogeni zimakhala zambiri, ndipo nthawi zambiri nayitrogeni yoyera ya 99.99% kapena kupitirira apo imafunika.

Kuyerekeza pakati pa mitundu yosiyanasiyana Jenereta ya Nayitrogenis

A, Jenereta ya nayitrogeni yolekanitsa mpweya ya Cryogenic

Kupanga nayitrogeni yolekanitsa mpweya wa cryogenic ndi njira yachikhalidwe yopangira nayitrogeni yokhala ndi mbiri ya zaka pafupifupi makumi angapo. Imagwiritsa ntchito mpweya ngati zopangira, kuikakamiza ndikuiyeretsa, kenako imagwiritsa ntchito kusinthana kwa kutentha kuti isungunule mpweya kukhala mpweya wamadzimadzi. Mpweya wamadzimadzi makamaka ndi chisakanizo cha mpweya wamadzimadzi ndi nayitrogeni yamadzimadzi. Malo owiritsa osiyanasiyana a mpweya wamadzimadzi ndi nayitrogeni yamadzimadzi (pa mlengalenga umodzi, malo owiritsa a woyamba ndi -183℃ ndipo womaliza ndi -196℃) amagwiritsidwa ntchito kuwalekanitsa kudzera mu kusungunuka kwa mpweya wamadzimadzi kuti apeze nayitrogeni. Zipangizo zopangira nayitrogeni yolekanitsa mpweya wa cryogenic ndi zovuta, zimakhala ndi malo akuluakulu, zimakhala ndi ndalama zambiri zomangamanga, zimafuna ndalama zambiri nthawi imodzi muzipangizo, zimakhala ndi ndalama zambiri zogwirira ntchito, zimakhala ndi mpweya wochepa (maola 12 mpaka 24), zimakhala ndi zofunikira zambiri zoyika, komanso nthawi yayitali. Poganizira zinthu zokhudzana ndi zida, kukhazikitsa ndi zomangamanga, kuchuluka kwa ndalama zomwe zimagwiritsidwa ntchito pa zida za PSA zomwe zili ndi zofunikira zomwezo pansi pa 3500Nm3/h ndi 20% mpaka 50% yotsika kuposa zida zolekanitsa mpweya wa cryogenic. Zipangizo zopangira nayitrogeni yolekanitsa mpweya wa cryogenic ndizoyenera kupanga nayitrogeni m'mafakitale akuluakulu, pomwe kupanga nayitrogeni wapakati ndi waung'ono sikotsika mtengo.

B, jenereta ya nayitrogeni yoyamwa mphamvu ya PSA

Njira yogwiritsira ntchito mpweya ngati zopangira, sefa ya kaboni ngati adsorbent, kugwiritsa ntchito mfundo ya kukakamiza kugwedezeka, ndi kugwiritsa ntchito kusankhidwa kwa okosijeni ndi nayitrogeni pogwiritsa ntchito sefa ya kaboni kuti alekanitse nayitrogeni ndi mpweya nthawi zambiri amatchedwa Kupanga kwa nayitrogeni wa PSANjira iyi ndi ukadaulo watsopano wopanga nayitrogeni womwe unakula mofulumira m'ma 1970. Poyerekeza ndi njira zachikhalidwe zopangira nayitrogeni, ili ndi mawonekedwe osavuta kuyenda kwa njira, mphamvu yodziyimira yokha, kupanga mpweya mwachangu (mphindi 15-30), kugwiritsa ntchito mphamvu zochepa, kuyera kwa zinthu kumatha kusinthidwa mkati mwa mitundu yayikulu malinga ndi zosowa za ogwiritsa ntchito, kugwiritsa ntchito bwino ndi kukonza, mtengo wotsika wogwirira ntchito, kusinthasintha kwamphamvu kwa chipangizo, ndi zina zotero. Chifukwa chake, ndi yopikisana kwambiri pazida zopangira nayitrogeni zosakwana 1000Nm3/h, ndipo ikulandiridwa kwambiri ndi ogwiritsa ntchito nayitrogeni apakatikati ndi ang'onoang'ono. Psa Nayitrogeni Kupanga kwakhala njira yogwiritsira ntchito nayitrogeni wapakati ndi waung'ono.

C, Chopangira nayitrogeni cholekanitsa ndi Membrane

Pogwiritsa ntchito mpweya ngati zopangira, pansi pa mikhalidwe ina yopanikizika, mpweya ndi nayitrogeni zimalekanitsidwa pogwiritsa ntchito mitundu yosiyanasiyana ya mpweya wolowa m'malo okhala ndi zinthu zosiyanasiyana monga mpweya ndi nayitrogeni mu nembanemba. Poyerekeza ndi zida zina zopangira nayitrogeni, ili ndi ubwino wosavuta kupanga, kukula kochepa, valavu yosinthira, kukonza kochepa, kupanga mpweya mwachangu (≤3 mphindi), komanso kukula kosavuta kwa mphamvu. Ndi yoyenera makamaka kwa ogwiritsa ntchito nayitrogeni apakatikati ndi ang'onoang'ono omwe ali ndi nayitrogeni yoyera ≤98%, ndipo ili ndi chiŵerengero chabwino kwambiri cha ntchito ndi mtengo. Pamene nayitrogeni yoyera ili pamwamba pa 98%, mtengo wake umakhala wokwera ndi 15% kuposa wa opanga nayitrogeni a PSA omwe ali ndi mawonekedwe omwewo.

Zinthu zomwe zimakhudza mtengo wa opanga ma nayitrogeni

1. Mtengo wogulira kamodzi kokha wa dongosolo lonse. Pakadali pano, pali mitundu yambiri pamsika, ndipo mtundu wake umagwirizana ndi mtengo.

2. Kukhazikika kwa ntchito ya zida ndi nthawi yogwiritsidwa ntchito yomwe ikuyerekezeredwa.

3. Ndalama zogwirira ntchito ndi kukonza pachaka.

4. Ndalama za tsiku ndi tsiku za madzi ndi magetsi.