Isikhidi sokukhipha i-helium sokukhipha i-helium kugesi wemvelo

Njengamanje, izinqubo zokukhipha i-helium kugesi wemvelo zifaka phakathi indlela ye-cryogenic, indlela yokumunca, indlela yokuhlukanisa ulwelwesi, noma inhlanganisela yezindlela ezimbili noma ezintathu kwezintathu. Ubumsulwa bomkhiqizo we-helium we-Helium extraction skid bungafinyelela ku-99.9999%

(1) Indlela ye-Cryogenic

I-cryogenic distillation iyindlela evame ukusetshenziswa ezitshalweni eziningi ze-helium zokubuyisa igesi yemvelo ephakathi nendawo kuya kwenkulu. Isimiso ukusebenzisa i-nitrogen ewuketshezi njengesiqandisi (cishe -190 ℃) ukuze kuhlanganiswe kancane kancane ama-hydrocarbon nezinye izingxenye kugesi yemvelo. Ngenxa yezinga eliphansi kakhulu lokubila le-helium, ekugcineni lihlukaniswa nezinye izingxenye kugesi yemvelo. Lena yindlela evamile enqubweni yokukhipha i-helium.

(2) Indlela Yokumunca Ukucindezela Kokushintshashintsha

Inqubo yokumunca ingcindezi (i-PSA) isebenzisa ama-adsorbent ahlukene ukumunca izingxenye ngaphandle kwe-helium kugesi yemvelo, ngaleyo ndlela ihlukanise imikhiqizo ye-helium. Ngokuvamile, imibhoshongo yokumunca i-PSA ifakwe imibhede yokuhlukanisa yezinto ezahlukene zokumunca ukuze ibhekane nezingxenye ezahlukene kugesi yemvelo, njengejeli ye-silica noma imibhede ye-alumina yokususa amanzi, imibhede ye-carbon esebenzayo yokususa i-carbon dioxide, imibhede ye-zeolite yokususa i-methane ne-nitrogen, njalo njalo. Ngemva kokuba i-adsorbent igcwalise igesi yokungcola, izindlela ezifana ne-depressurization blowback noma i-vacuum pumping zingasetshenziswa ukususa igesi yokungcola nokubuyisela umsebenzi we-adsorbent.

(3) Indlela Yokuhlukanisa Ulwelwesi

I-membrane yokuhlukanisa igesi iwubuchwepheshe obusha bokuhlukanisa. Izingxenye zegesi zidluliselwa ngobuningi kumafilimu e-polymer (njenge-acetate fibers, i-polypropylene, i-poly-sulfone, i-polyimide, njll.) ngokusekelwe esimisweni sokusabalala kokuncibilika. Ukuhlukaniswa kwengxenye ngayinye kufezwa ngokuya ngamazinga ahlukene okuncibilika kanye nokusabalala kwezingxenye zegesi ezahlukene ezintweni ze-membrane. Lapho izingxube zegesi ezimbili noma ngaphezulu zidlula kwifilimu ye-polymer, izinga lokugcwala kwezingxenye ezifana ne-helium ne-hydrogen liphakeme kakhulu kunele-nitrogen, i-methane, namanye ama-hydrocarbon.

I-Helium ayikwazi ukukhiqizwa embonini, ingahlanzwa kuphela. Ekuhlolweni kwefiziksi, ingatholakala ngokubola kwe-athomu, kodwa ngobuningi obuncane kakhulu. Ngokwethiyori, ingakhishwa emoyeni, kodwa ngenxa yokuqukethwe okuphansi kwe-helium emoyeni, i-helium ingatholakala kugesi yemvelo equkethe cishe i-helium engu-0.5% embonini ngokuhlukaniswa, ukucwengwa, nokuhlanzwa kwamadivayisi okukhipha i-helium.