Kugadzirwa kweokisijeni mumaindasitirimidziyo, sezvinoreva zita, midziyo inoshandiswa mukugadzira maindasitiri kugadzira oxygen.
Saka ndeipi nzira yekugadzirwa kweokisijeni mumaindasitiri?
Kazhinji isu tinowanzo shandisa nzira yekugadzira okisijeni nekuora hydrogen peroxide kana potassium permanganate murabhoritari, ine maitiro ekukurumidza kuita, kushanda kuri nyore uye kuunganidzwa kuri nyore kwemaindasitiri ekugadzira okisijeni, asi mutengo wakakura uye haugone kugadzirwa muhombe. uwandu, saka inogona chete kushandiswa murabhoritari.Kugadzirwa kwemaindasitiri kunoda kufunga kuti iyo mbishi jenareta yeokisijeni ndeipi mhando iri nyore kuwana, kana mutengo wakachipa, kana mutengo wakaderera, ungave uchigadzirwa muhuwandu uye kukanganisa kwezvakatipoteredza.
Izvi zvinotevera zvinotsanangura nzira dzakananga dzekugadzirwa kweokisijeni mumaindasitiri.
1. Mhepo inotonhora yekuparadzanisa nzira
Zvinhu zvikuru zvemhepo iokisijeni uye nitrogen.Kushandiswa kweokisijeni uye nitrogen yekubikira nzvimbo kwakasiyana, kugadzirira kweokisijeni kubva kumhepo kunonzi nzira yekuparadzanisa mweya.Chekutanga, mhepo pre-kutonhora, kucheneswa (kubvisa hunyoro hushoma, carbon dioxide, acetylene, hydrocarbons nemamwe magasi uye guruva uye mamwe tsvina mumhepo), uye ipapo compressed, cooled, kuti pamusoro gumi. mhando dzemajenareta eokisijeni mumhepo yemvura.
Zvadaro, uchishandisa musiyano pakati penzvimbo dzinofashaira dzeokisijeni nenitrogen, mweya wemvura unobuda uye wovharidzirwa kakawanda mushongwe yedistillation kuti iparadzanise oxygen nenitrogen.Kana iwe ukawedzera mamwe maturusi ekuwedzera, unogona zvakare kubvisa argon, neon, helium, krypton, xenon uye mamwe asingawanzo inert magasi ane zvishoma mumhepo.Iyo okisijeni inogadzirwa nemudziyo wekuparadzanisa mhepo inotsikirirwa necompressor, uye pakupedzisira iyo okisijeni yakamanikidzwa inotakurwa mumasilinda ane simba rekuchengetedza, kana kutakurwa zvakananga kumafekitori nemashopu kuburikidza nemapaipi.
2. Molecular sieve okisijeni nzira yekugadzira (adsorption nzira)
Uchishandisa hunhu hwemamorekuru enitrogen akakura kupfuura mamorekuru eokisijeni, okisijeni iri mumhepo inopatsanurwa kunze uchishandisa sefa yakagadziridzwa yemamorekuru.Chekutanga, compressor inomanikidza mweya wakaoma kuburikidza nesefa yemamorekuru kupinda muvacuum adsorber, mamorekuru enitrogen ari mumhepo anovharidzirwa nesefa yemamolecular, okisijeni ichipinda muadsorber, kana okisijeni iri mu adsorber yasvika imwe chiyero (kumanikidza kunosvika level), unogona kuvhura vharuvhu yeokisijeni kuburitsa okisijeni.
Mushure menguva yakati rebei, iyo nitrogen yakashongedzwa nesefa yemamolecular inowedzera zvishoma nezvishoma, iyo adsorption inoderera, uye kuchena kweiyo okisijeni inodzikira, saka iyo nitrogen yakashambadzirwa pa molecular seve inoda kupomba kunze nepombi yevacuum, yozodzokorora. nzira iri pamusoro.Iyi nzira yekugadzirwa kweokisijeni inonziwo adsorption nzira.
Nguva yekutumira: Zvita-30-2021