Parizvino, maitiro ekubvisa helium kubva mugasi rechisikigo kumba nekune dzimwe nyika anosanganisira nzira ye cryogenic, nzira ye adsorption, nzira yekuparadzanisa membrane, kana musanganiswa wemaitiro maviri kana matatu anoshandiswa pamwe chete.
1) Nzira yekutonhodza yakadzika
Kunyudza mvura muchando chakadzika inzira inowanzo shandiswa mufekitori yehelium yekudzoreredza gasi repakati nepakati kusvika guru. Nheyo yacho ndeyekushandisa liquid nitrogen semuchina wekuisa mufiriji (inenge -190 ℃) kuti zvishoma nezvishoma mahydrocarbon nezvimwe zvikamu zviri mugasi rechisikigo, uye nekuda kwenzvimbo yakaderera kwazvo yekufashaira yehelium, inopedzisira yaparadzana nezvimwe zvikamu zviri mugasi rechisikigo.
2) Nzira yekudzvanya kudzvanya kwedzvinyiriro
Iyo maitiro ekushandisa kudzvanywa kwemhepo (PSA) inoshandisa ma adsorbents akasiyana-siyana kunyudza zvikamu zvegasi rechisikigo kunze kwehelium, nokudaro ichiparadzanisa zvigadzirwa zvehelium. Kazhinji, PSA adsorption towers inozadzwa nemibhedha yekuparadzanisa yezvinhu zvakasiyana-siyana zvekunyudza kuti ishande nezvinhu zvakasiyana-siyana zviri mugasi rechisikigo, zvakaita se silica gel kana alumina beds yekubvisa mvura, activated carbon beds yekubvisa carbon dioxide, zeolite beds yekubvisa methane nenitrogen, nezvimwewo. Mushure mekunge adsorbent yazadza gasi rekusvibiswa, nzira dzakadai se depressurization backflushing kana vacuum pumping dzinogona kushandiswa kugadzirisa gasi rekusvibiswa, nokudaro kudzoreredza basa re adsorbent.
3) Nzira yekuparadzanisa membrane
Kamudzira kekuparadzanisa gasi inyanzvi itsva yekuparadzanisa. Zvikamu zvegasi zvinotakura huremu pamafirimu epolymer (akadai seacetate fibers, polypropylene, polysulfone, polyimide, nezvimwewo) zvichibva papfungwa yekupararira kwekunyungudika. Kuparadzaniswa kwechikamu chimwe nechimwe kunowanikwa nekuchinja kunyungudika uye mwero wekupararira kwezvikamu zvakasiyana zvegasi muzvinhu zvemembrane. Kana musanganiswa wemagasi maviri kana anopfuura unopfuura nepafirimu repolymer, mwero wekupindira kwezvikamu zvakaita sehelium nehydrogen wakakwira zvikuru kupfuura wenitrogen, methane, nemamwe mahydrocarbon.
Bata nesu:
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Nguva yekutumira: Kurume-01-2024