Zaka za m'ma 1930 zisanafike, makamaka Germany ndi France zokha zikanakhoza kupanga majenereta a okosijeni.Panthawiyo, majenereta a okosijeni (majenereta a okosijeni osinthika) amatha kukwaniritsa zofunikira pakuwotcherera ndi kudula zida za oxygen ndi nayitrogeni zomwe zimafunikira pamakampani opanga mankhwala.Kupanga kwa ma jenereta a okosijeni makamaka kunali kochepa komanso kakang'ono, kokhala ndi mphamvu ya 2m3 / h mpaka 600m3 / h ndi mitundu pafupifupi 200.Thejenereta wa oxygennjira ntchito ndi mkulu-anzanu ndi sing'anga-kupanikizika ndondomeko.
Kuchokera mu 1930 mpaka 1950, kuwonjezera pa Germany ndi France, mayiko ena monga Soviet Union, Japan, United States ndi United Kingdom anayambanso kupanga majenereta a oxygen.Panthawi imeneyi, ndi chitukuko cha kupanga, malo ogwiritsira ntchito ma generator a oxygen (variable pressure adsorption oxygen generators) adakulitsidwa ndipo chitukuko cha majenereta akuluakulu a oxygen chinalimbikitsidwa.Monga magetsi ndi zitsulo zomwe zimafunikira kupanga 1 m3 ya okosijeni m'majenereta akuluakulu a okosijeni anali apamwamba kuposa amagetsi ang'onoang'ono ndi apakatikati, majenereta akuluakulu a oxygen adakula kwambiri kuyambira 1930 mpaka 1950, monga 5000 m3 / h. Kumadzulo kwa Germany, 3600 m3/h ku USSR ndi 3000 m3/h ku Japan.njira zomwe zimagwiritsidwa ntchito panthawiyo, kuphatikizapo kuthamanga kwapamwamba ndi kwapakati, zinayamba kugwiritsa ntchito njira zochepetsera komanso zochepa.Mu 1932, Germany idagwiritsa ntchito majenereta a okosijeni kwa nthawi yoyamba m'mafakitale azitsulo ndi ammonia.
Pambuyo pa 1950, kuwonjezera pa majenereta a okosijeni (majenereta otulutsa okosijeni osinthika) opangidwa m'maiko omwe ali pamwambapa, pali China, Czech Republic, East Germany, Hungary, Italy, ndi zina zambiri (China ndi wopanga mochedwa, zonse zimakhazikika kwambiri. ).
Chifukwa cha chitukuko cha mafakitale azitsulo, mafakitale a feteleza wa nayitrogeni ndi luso la rocket, kugwiritsa ntchito mpweya ndi nayitrogeni kwakula mofulumira, zomwe zalimbikitsa kukula kwakukulu kwa majenereta a okosijeni.Kuyambira 1957, 10,000m3/h ma jenereta okosijeni akhala akuyambitsidwa imodzi ndi ina.kuyambira 1967, malinga ndi ziwerengero zosakwanira, pali 87 majenereta akuluakulu a okosijeni pamwamba pa 20,000 m3 / h, gawo lalikulu ndi 50,000 m3 / h, ndipo gawo lalikulu likukula.
M'zaka 20 zapitazi, mitundu ya mankhwala yawonjezeka mofulumira ndipo pang'onopang'ono imapanga mndandanda.Mwachitsanzo, West Germany Jenereta yaikulu ya okosijeni ya Linde ili ndi 1000 ~ 40000m3 / h zinthu wamba;Japan kobelco ali OF mndandanda;Japan Hitachi ikupanga mitundu yonse ya TO;Japan Oxygen ili ndi mtundu wa NR;Britain ili ndi matani 50 ~ 1500 / tsiku.Panthawi imodzimodziyo, majenereta akuluakulu a okosijeni amagwiritsa ntchito njira yotsika kwambiri.
Mwachidule, chitukuko cha mpweya jenereta (variable pressure adsorption oxygen generator) ndi njira yopanda ungwiro, ndipo zida zapangidwa kuchokera ku zazing'ono ndi zazing'ono mpaka zazikulu.Njirayi idapangidwa kuchokera ku kuthamanga kwambiri (200 atmospheres), kuthamanga kwapakati (50 atmospheres) ndi kuthamanga kwapamwamba ndi kutsika mpaka kutsika kwapansi (6 atmospheres), motero kuchepetsa mphamvu ya unit ndikugwiritsa ntchito zitsulo za jenereta ya okosijeni ndikuwonjezera ntchito. kuzungulira.