Huab cua cais chav tsev txheej txheem

Ib chav sib cais huab cua (ASU) yog cov txheej txheem uas cais cov huab cua hauv huab cua rau hauv nws cov khoom tseem ceeb, suav nrog nitrogen, oxygen, thiab argon, nrog rau lwm cov pa roj. Cov txheej txheem ASU feem ntau suav nrog cov kauj ruam hauv qab no:

1. Compression: Cua yog kos rau hauv ASU thiab compressed rau ob peb zaug atmospheric siab.

2. Kev ua kom txias: Cov cua compressed yog tom qab ntawd txias siv lub tshuab hluav taws xob, uas tshem tawm cov dej noo thiab lwm yam impurities.

3. Purification: Cov cua txias yog coj mus rau hauv lub molecular sieve los yog adsorption txaj uas nws yog purified ntawm impurities xws li carbon dioxide, dej vapor, thiab hydrocarbons.

4. Kev sib cais: Cov huab cua ntshiab yog tom qab ntawd coj mus rau hauv cov kab sib cais cryogenic distillation, qhov kev sib cais ntawm nws cov khoom tseem ceeb tshwm sim raws li lawv cov ntsiab lus kub.

5. Distillation: Cryogenic distillation kem ua haujlwm ntawm qhov kub qis heev thiab cais cov huab cua rau hauv nws cov khoom sib txawv raws li lawv cov ntsiab lus kub, nrog nitrogen boiling ntawm -196 degree thiab oxygen ntawm -183 degree.

6. Rov qab: Cov roj sib cais yog tom qab ntawd condensed thiab sib cais los siv rau ntau yam kev lag luam thiab kev siv kho mob.

Cov txheej txheem ASU yog lub zog siv zog thiab xav tau hluav taws xob ntau los ua haujlwm. Txawm li cas los xij, kev sib cais ntawm huab cua mus rau hauv nws cov khoom tseem ceeb yog qhov tseem ceeb rau ntau yam kev tsim thiab kev lag luam, nrog rau kev tsim steel, kev tsim tshuaj, thiab kev tsim hluav taws xob.