Iskidi yokukhupha iHelium yokukhupha ihelium kwigesi yendalo

Okwangoku, iinkqubo zokukhupha i-helium kwigesi yendalo ziquka indlela ye-cryogenic, indlela yokufunxa, indlela yokwahlula i-membrane, okanye indibaniselwano yeendlela ezimbini okanye ezintathu kwezi zintathu. Ubumsulwa bemveliso ye-helium ye-Helium extraction skid bunokuhlangabezana ne-99.9999%

(1) Indlela yeCryogenic

I-cryogenic distillation yindlela esetyenziswa kakhulu kwizityalo ze-helium zokubuyisa igesi ephakathi ukuya kwenkulu. Umgaqo kukusebenzisa i-nitrogen engamanzi njengesiqandisi (malunga ne--190 ℃) ukuze kuhlanganiswe ii-hydrocarbons kunye nezinye izinto kwigesi yendalo. Ngenxa yokuba i-helium ibila kancinci, ekugqibeleni yahlulwe kwezinye izinto kwigesi yendalo. Le yindlela eqhelekileyo kwinkqubo yokukhupha i-helium.

(2) Indlela yokufunxa i-Pressure Swing

Inkqubo ye-pressure swing adsorption (PSA) isebenzisa ii-adsorbents ezahlukeneyo ukufunxa izinto ezingezizo i-helium kwigesi yendalo, ngaloo ndlela yahlula iimveliso ze-helium. Ngokubanzi, ii-PSA adsorption towers zixhotyiswe ngee-separation beds zezixhobo ezahlukeneyo ze-adsorption ukujongana nee-component ezahlukeneyo kwigesi yendalo, njenge-silica gel okanye ii-alumina beds zokususa amanzi, ii-activated carbon beds zokususa i-carbon dioxide, ii-zeolite beds zokususa i-methane kunye ne-nitrogen, njalo njalo. Emva kokuba i-adsorbent igcwalise igesi yokungcola, iindlela ezifana ne-depressurization blowback okanye i-vacuum pumping zingasetyenziselwa ukususa igesi yokungcola nokubuyisela umsebenzi we-adsorbent.

(3) Indlela yoKwahlula iMembrane

I-membrane yokwahlulwa kwegesi yiteknoloji entsha yokwahlulwa. Iinxalenye zegesi zidluliselwa ngobuninzi kwiifilimu zepolymer (ezifana neefayibha ze-acetate, i-polypropylene, i-poly-sulfone, i-polyimide, njl.njl.) ngokusekelwe kumgaqo wokusasazwa kokunyibilika. Ukwahlulwa kwenxalenye nganye kufezekiswa ngokwezinga lokunyibilika kunye namazinga okusasazwa kweenxalenye zegesi ezahlukeneyo kwizinto zemembrane. Xa imixube emibini okanye ngaphezulu yegesi idlula kwifilimu yepolymer, izinga lokugcwala kweenxalenye ezifana ne-helium kunye ne-hydrogen liphezulu kakhulu kunele-nitrogen, i-methane, kunye nezinye ii-hydrocarbon.

I-Helium ayinakuveliswa kwimizi-mveliso, inokucocwa kuphela. Kwizilingo zefiziksi, inokufumaneka ngokubola kweathomu, kodwa ngobuninzi obuncinci kakhulu. Ngokwethiyori, inokutsalwa emoyeni, kodwa ngenxa yomxholo ophantsi we-helium emoyeni, i-helium inokufumaneka kwigesi yendalo equlethe malunga ne-0.5% ye-helium kwimizi-mveliso ngokwahlula, ukucocwa, kunye nokucocwa kwezixhobo zokukhupha i-helium.