Indlela yokukhetha ijeneretha ye-nitrogen efanelekile

Ngaphambi kokunquma imininingwane ethile yemodeli (isb. Ukukhiqizwa kwe-nitrogen ngehora, ubumsulwa be-nitrogen, ingcindezi yokuphuma, iphuzu lamazolo), kufanele sigxile ekuhlaziyweni okuqhathanisayo okuphelele kokusebenza kanye nezici ze-umkhiqizi we-nitrogen, futhi senze ukukhetha okufanele ngokusekelwe ezimweni zethu zemvelo ezikhona.

Izidingo ze-nitrogen ezimbonini ezahlukene

A, Izimboni ze-Metallurgy kanye nokucubungula insimbi

Ezinye zalezi zimboni zidinga i-nitrogen enokuhlanzeka okungaphezu kuka-99.5%, kanti ezinye zidinga i-nitrogen esezingeni eliphezulu enokuhlanzeka okungaphezu kuka-99.9995% kanye nephuzu lamazolo elingaphansi kuka--65°C. Lokhu kufanele kunqunywe ngokusekelwe ezimweni zokukhiqiza zekhasimende.

B, Izimboni zamakhemikhali nezinto ezintsha

Ngokuvamile, izidingo zokuhlanzeka kwe-nitrogen aziphezulu, futhi ukuhlanza okuningi okungaphezu kuka-98% kungasetshenziswa. Kodwa-ke, izidingo zangempela zincike enqubweni yokukhiqiza yekhasimende.

C, Izimboni zokudla nezokwelapha

Izimboni eziningi zokudla azinazo izidingo eziphezulu ze-nitrogen, futhi ubumsulwa obungu-99.5% ~ 99.9% bungahlangabezana nezidingo. Inani elincane lezimboni zokudla kufanele likhethe ubumsulwa obungu-99.99% ngenxa yezidingo zenqubo. Imboni yezokwelapha ngokuvamile idinga ubumsulwa be-nitrogen obungu-99.99% futhi idinga ukuba yenziwe ngensimbi engagqwali.

imboni ye-elekthronikhi

Ngokuvamile, izidingo ze-nitrogen ziphakeme kakhulu, futhi ngokuvamile kudingeka ubumsulwa be-nitrogen obungu-99.99% noma ngaphezulu.

Ukuqhathanisa phakathi kwezinhlobo ezahlukene Ijeneretha yeNitrogens

A, ijenereyitha ye-nitrogen yokuhlukanisa umoya i-Cryogenic

Ukukhiqizwa kwe-nitrogen yokuhlukanisa umoya nge-cryogenic kuyindlela yendabuko yokukhiqiza i-nitrogen enomlando wamashumi eminyaka acishe abe ngamashumi ambalwa. Isebenzisa umoya njengezinto zokusetshenziswa, iwucindezele futhi iwuhlanze, bese isebenzisa ukushintshana kokushisa ukuze incibilikise umoya ube umoya owuketshezi. Umoya owuketshezi ikakhulukazi uyingxube ye-oxygen ewuketshezi kanye ne-nitrogen ewuketshezi. Amaphuzu abilayo ahlukene e-oxygen ewuketshezi kanye ne-nitrogen ewuketshezi (emkhathini owodwa, iphuzu lokubila lokuqala lingu--183℃ kanti elokugcina lingu--196℃) asetshenziselwa ukuwahlukanisa ngokuhluzwa komoya oketshezi ukuze kutholakale i-nitrogen. Imishini yokukhiqiza i-nitrogen yokuhlukanisa umoya nge-cryogenic iyinkimbinkimbi, ithatha indawo enkulu, inezindleko eziphezulu zengqalasizinda, idinga ukutshalwa kwezimali kanye kuphela emishinini, inezindleko zokusebenza eziphezulu, ukukhiqizwa kwegesi okuhamba kancane (amahora ayi-12 kuya kwangu-24), inezidingo eziphezulu zokufaka, kanye nomjikelezo omude. Uma kucatshangelwa izici zemishini, ukufakwa kanye nengqalasizinda, isikali sokutshalwa kwezimali semishini ye-PSA enezincazelo ezifanayo ngaphansi kuka-3500Nm3/h siphansi ngo-20% kuya ku-50% kunesemishini yokuhlukanisa umoya nge-cryogenic. Imishini yokukhiqiza i-nitrogen yokuhlukanisa umoya e-cryogenic ifanelekela ukukhiqizwa kwe-nitrogen yezimboni ezinkulu, kuyilapho ukukhiqizwa kwe-nitrogen ephakathi nendawo nencane kungeyona eyongayo.

B, ijenereyitha ye-nitrogen yokumuncwa kwengcindezi ye-PSA

Indlela yokusebenzisa umoya njengezinto zokusetshenziswa, isihlungi se-carbon molecular njenge-adsorbent, ukusebenzisa isimiso sokumuncwa kwe-pressure swing, kanye nokusebenzisa i-adsorption ekhethiwe ye-oxygen ne-nitrogen ngesihlungi se-carbon molecular ukuhlukanisa i-nitrogen ne-oxygen ngokuvamile ibizwa ngokuthi Ukukhiqizwa kwe-nitrogen ye-PSALe ndlela iwubuchwepheshe obusha bokukhiqiza i-nitrogen obathuthuka ngokushesha ngawo-1970. Uma kuqhathaniswa nezindlela zendabuko zokukhiqiza i-nitrogen, inezici zokugeleza kwenqubo okulula, izinga eliphezulu lokuzenzakalela, ukukhiqizwa kwegesi okusheshayo (imizuzu eyi-15-30), ukusetshenziswa kwamandla aphansi, ubumsulwa bomkhiqizo bungalungiswa ngaphakathi kobubanzi obukhulu ngokuya ngezidingo zomsebenzisi, ukusebenza okulula nokugcinwa, izindleko zokusebenza eziphansi, ukuzivumelanisa nezimo okuqinile kwedivayisi, njll. Ngakho-ke, incintisana kakhulu emishinini yokukhiqiza i-nitrogen engaphansi kwe-1000Nm3/h, futhi yamukelwa kakhulu ngabasebenzisi be-nitrogen abaphakathi nabancane. I-Psa Nitrogen ukukhiqizwa sekuyindlela yabasebenzisi be-nitrogen abaphakathi nabancane.

C, Umkhiqizi we-nitrogen wokuhlukanisa i-membrane

Ukusebenzisa umoya njengezinto zokusetshenziswa, ngaphansi kwezimo ezithile zokucindezela, umoya-mpilo kanye ne-nitrogen kuhlukaniswa ngokusebenzisa amazinga ahlukene okugeleza kwamagesi anezakhiwo ezahlukene njenge-oxygen kanye ne-nitrogen kulwelwesi. Uma kuqhathaniswa neminye imishini yokukhiqiza i-nitrogen, inezinzuzo zesakhiwo esilula, usayizi omncane, i-valve yokushintsha, ukulungiswa okuncane, ukukhiqizwa kwegesi okusheshayo (≤imizuzu emi-3), kanye nokwandiswa komthamo okulula. Ifaneleka kakhulu kubasebenzisi be-nitrogen abaphakathi nabancane abanobumsulwa be-nitrogen ≤98%, futhi inesilinganiso esihle kakhulu somsebenzi nentengo. Lapho ubumsulwa be-nitrogen bungaphezu kwama-98%, intengo yayo ingaphezu kwama-15% kuneyamajeneretha e-nitrogen e-PSA anezincazelo ezifanayo.

Izici ezithinta izindleko zamajeneretha e-nitrogen

1. Izindleko zokuthenga kanye kuphela zohlelo lonke. Njengamanje, kunezinhlobo eziningi emakethe, futhi ikhwalithi ilingana nentengo.

2. Ukuzinza kokusebenza kwemishini kanye nokuphila kwenkonzo okulinganiselwe.

3. Izindleko zokusebenza nokugcinwa minyaka yonke.

4. Izindleko zamanzi nogesi zansuku zonke.