Umahluko phakathi kwe-VPSA i-oxygen generator kunye ne-PSA i-oxygen generator

Ukuphakama ngokufanelekileyo, i-VPSA (i-low pressure adsorption vacuum desorption) imveliso ye-oxygen yenye "inguqu"Ukuveliswa kwe-oksijini ye-PSA, umgaqo wabo wokuvelisa i-oksijini uphantse ufana, kwaye umxube wegesi uhlukaniswe ngumahluko kwisakhono se-molecular sieve ukuba "adsorb" iimolekyuli zegesi ezahlukeneyo. Kodwa inkqubo yokuvelisa i-oksijini ye-PSA kungoxinzelelo lwe-adsorption, uxinzelelo lwe-atmospheric desorption ukwahlula ioksijini. Inkqubo ye-VPSA yokuvelisa i-oksijini kukukhupha i-saturated ye-molecular sieve phantsi kweemeko ze-vacuum.

Nangona zombini zisekelwe emoyeni njengezinto eziluhlaza, umgaqo wokuvelisa i-oksijini uyafana. Kodwa xa uthelekisa ngenyameko, kukho lo mahluko ulandelayo;

1. IIjenereyitha ye-oxygen yeVPSAisebenzisa i-blower ukufumana umoya okrwada kunye nokuwucinezela, ngelixa i-PSA generator ye-oksijini isebenzisa i-compressor yomoya ukubonelela ngegesi.

I-2, kwi-core component - i-zeolite ye-molecular sieve, i-PSA i-oxygen generator isebenzisa i-sodium molecular sieve kunye ne-VPSA i-oxygen generator isebenzisa i-lithium molecular sieve.

3. Uxinzelelo lwe-adsorption ye-PSA i-oxygen generator ngokuqhelekileyo yi-0.6 ~ 0.8Mpa, kunye noxinzelelo lwe-adsorption ye-VPSA i-oxygen generator yi-0.05Mpa kunye noxinzelelo lwe-desorption -0.05Mpa.

I-4, umthamo we-PSA wesityalo esinye sokuvelisa igesi unokufikelela kwi-200 ~ 300Nm³ / h, kunye ne-VPSA yesityalo esisodwa sokuvelisa igesi inokufikelela kwi-7500 ~ 9000Nm³ / h.

I-5, i-VPSA ngokumalunga ne-PSA, ukusetyenziswa kwamandla aphantsi (ukuveliswa kwe-1Nm3 ukusetyenziswa kwamandla oksijini ≤ 0.31kW, ukuhlanjululwa kwe-oxygen 90%, ngaphandle koxinzelelo lwe-oxygen), kunye nokusingqongileyo.

I-6, Ngokwemveliso ye-oksijeni, imigangatho yokusetyenziswa kwamandla kunye notyalo-mali ekukhetheni inkqubo ye-PSA okanye inkqubo ye-VPSA.

VPSA ioksijini generator nangona isityalo esinye imveliso ioksijini umthamo mkhulu, kodwa intsilelo kukuba izixhobo inkqubo entsonkothileyo ngakumbi, umthamo wezixhobo mkhulu (thelekisa nesixhobo cryogenic isencinci), ukuxhasa kunye neenkonzo iimeko ezifunekayo ngakumbi. , iya kuhlala indawo enkulu, ngokubanzi ayinakwenziwa ifom yesikhongozeli. Kwaye idinga ukufakwa kwisiza, ukugunyaziswa, ukusuka kweli nqanaba lodwa. I-PSA ineengenelo ezithile.