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Okisijeni yakachena kwazvo inoshandiswa zvakanyanya muminda yekurapa, yeindasitiri, uye yesainzi. Kuenderera mberi kwekuvandudzwa kwetekinoroji yayo yekugadzira kwakaita kuti pave nezvinodiwa zvakanyanya zvekuchena uye kushanda zvakanaka kweokisijeni. Chinyorwa chino chichaunza nzira dzakawanda dzakajairika dzekugadzira okisijeni yakachena kwazvo, tichiongorora misimboti yadzo yekushanda, zvakanakira nezvayakaipira, uye mamiriro ezvinhu anoshanda.

1. Nzira yekuparadzanisa mhepo

Nzira yekuparadzanisa mhepo ndeimwe yenzira dzinonyanya kushandiswa pakugadzira okisijeni yakachena kwazvo. Chinangwa chayo chikuru ndechekuparadzanisa zvikamu zvakasiyana mumhepo panzvimbo dzakasiyana dzekufashaira uchishandisa tekinoroji yekutonhodza inonzi cryogenic.

1.1 Nzira yekuparadzanisa mhepo inotonhora yakadzika

Nzira yekuparadzanisa mhepo inotonhora yakadzika inzira yekugadzira okisijeni mumaindasitiri. Nzira iyi inoshandisa musiyano wenzvimbo dzekufashaira dzezvikamu zvakasiyana-siyana mumhepo pasi pekumanikidzwa kwakasiyana uye tembiricha. Kuburikidza nematanho akasiyana ekudzvanya, kutonhora, uye kunyungudika, okisijeni, nitrogen, nemamwe magasi zvinoparadzaniswa nemhepo. Mudziyo wekuparadzanisa mhepo inotonhora yakadzika unoshandisa shongwe dze distillation dzine matanho akawanda kuti pakupedzisira uwane okisijeni yakachena ine kuchena kweinopfuura 99.5%.

Zvakanakira nzira yekuparadzanisa mhepo inotonhora yakadzika ndeyekuti inogona kugadzira okisijeni yakachena zvakanyanya uye nguva dzose, uye yakakodzera kushandiswa mumaindasitiri nezvinodiwa zvakanyanya zveokisijeni, zvakaita sekunyungudutsa simbi uye maitiro emakemikari. Zvakashata zvayo ndezvekuti mari yekutanga yakawandisa, kushandiswa kwesimba kwakawanda, uye zvinodiwa pakugadzirisa nekushandisa michina zvakanyanya.

1.2 Nzira yekuparadzanisa kudzvanywa nekuwedzera

Nzira yekuparadzanisa mhepo inotonhora zvakanyanya inovandudza nzira yekuparadzanisa mhepo inotonhora zvakanyanya. Nekudzvanya mhepo nekuiwedzera nekukurumidza, mhepo inotonhodzwa uye okisijeni nezvimwe zvikamu zvinoparadzaniswa. Nzira iyi inogonawo kuwana kuchena kwakanyanya kweokisijeni, asi kana ichienzaniswa nekuparadzanisa mhepo inotonhora zvakanyanya, huwandu hwemidziyo yayo hudiki uye hwakakodzera zvinodiwa pakugadzira okisijeni padanho diki.

2. Nzira yeKudzvanya Kudzvanya (PSA)

Kudzvanywa kwemhepo nemhepo (Pressure Swing Adsorption - PSA) inzira inoshandiswa zvakanyanya mukugadzira okisijeni ine kuchena kwakanyanya mumaindasitiri. Nheyo yePSA ndeyekushandisa hunhu hwekusarudza kunyudzwa kwemhepo (senge zeolite molecular sieves) kuti iwane nitrogen neokisijeni mumhepo. Pasi pekumanikidzwa kwakasiyana, nitrogen inonyudzwa uye inobviswa zvakateerana, nokudaro ichiwana okisijeni ine kuchena kwakanyanya.

Zvakanakira nzira yePSA ndezvekuti michina yayo iri nyore, kutanga kwayo kunokurumidza, uye mari yekushandisa yakaderera. Haidi maitiro akaoma ekutonhodza, saka inoshandiswa zvakanyanya mumidziyo midiki yekugadzira okisijeni. Kuchena kweokisijeni kunogadzirwa nenzira yePSA kunowanzova pakati pe90% ne95%, asi kuburikidza nekuvandudza kwakakodzera, kuchena kunogona kuwedzerwa kusvika pamusoro pe99%.

Zvisinei, zvakaipa zvePSA nzira ndeyekuti kugadzirwa kweokisijeni uye kuchena kwayo zvinogumira pakushanda kwemushonga unopinza mweya, uye kushanda zvakanaka kwemushonga uyu kunokanganiswa nekukwegura kwemushonga unopinza mweya. Saka, nzira iyi yakakodzera mabhizinesi kana masangano ekurapa ane kudiwa kushoma kweokisijeni.

Isu tiri vagadziri uye vanotumira kunze kwenyika vechikamu chekuparadzanisa mhepo. Kana muchida kuziva zvakawanda nezvedu:

Munhu wekuonana naye: Anna

Nhare/Whatsapp/Wechat:+86-18758589723

Email :anna.chou@hznuzhuo.com