Umehluko phakathi kwe-VPSA oxygen generator kanye ne-PSA oxygen generator

Iphakama kahle, i-VPSA (i-low pressure adsorption vacuum desorption) ukukhiqizwa komoya-mpilo kungenye "indlela"Ukukhiqizwa kwe-oxygen ye-PSA, umgomo wabo wokukhiqiza umoya-mpilo ucishe ufane, futhi ingxube yegesi ihlukaniswa umehluko emandleni esisefo samangqamuzana ukuze "adsorb" ama-molecule egesi ahlukene. Kodwa inqubo yokukhiqiza i-oxygen ye-PSA ingenxa ye-pressurize adsorption, i-atmospheric pressure desorption ukuze ihlukanise umoya-mpilo. Inqubo ye-VPSA yokukhiqizwa kwe-oksijini iwukuba i-desorption ye-molecular sieve egcwele ngaphansi kwezimo ze-vacuum.

Nakuba kokubili kusekelwe emoyeni njengezinto zokusetshenziswa, isimiso sokukhiqizwa komoya-mpilo siyefana. Kodwa uma uqhathanisa ngokucophelela, kunomehluko olandelayo;

1. IVPSA oxygen generatorisebenzisa isiphephetha-moya ukuze ithole umoya ongahluziwe futhi iwucindezele, kuyilapho ijeneretha ye-oxygen ye-PSA isebenzisa i-compressor yomoya ukuze inikeze igesi.

I-2, Engxenyeni eyinhloko - ukukhethwa kwe-zeolite ye-molecular sieve, i-PSA oxygen generator isebenzisa isihlungo se-sodium molecular kanye ne-VPSA i-oxygen generator isebenzisa i-lithium molecular sieve.

3. Ingcindezi ye-adsorption ye-PSA oxygen generator ivamise ukuba ngu-0.6~0.8Mpa, futhi ingcindezi ye-adsorption ye-VPSA oxygen generator ingu-0.05Mpa kanye nokucindezela kwe-desorption ngu-0.05Mpa.

4, umthamo wokukhiqiza igesi yesitshalo esisodwa se-PSA ungafinyelela ku-200~300Nm³/h, futhi umthamo wokukhiqiza igesi yesitshalo esisodwa se-VPSA ungafinyelela ku-7500~9000Nm³/h.

I-5, i-VPSA ehlobene ne-PSA, ukusetshenziswa kwamandla okuphansi (ukukhiqizwa kwe-1Nm3 ukusetshenziswa kwamandla oksijini ≤ 0.31kW, ukuhlanzeka kwe-oxygen 90%, ngaphandle kokucindezelwa komoya-mpilo), futhi kunobungani bemvelo.

6, Ngokusho kokukhiqizwa komoya-mpilo, amazinga okusetshenziswa kwamandla kanye nokutshalwa kwezimali ekukhetheni inqubo ye-PSA noma inqubo ye-VPSA.

I-VPSA generator oxygen nakuba isitshalo esisodwa sokukhiqiza i-oksijeni umthamo omkhulu, kodwa ukuntula kwayo ukuthi imishini yesistimu iyinkimbinkimbi, umthamo wemishini mkhulu (qhathanisa nedivayisi ye-cryogenic isencane), izimo ezisekelayo nezisetshenziswa ziyadingeka kakhulu. , izothatha indawo enkulu, ngokuvamile ayinakwenziwa ifomu lesiqukathi. Futhi idinga ukufakwa esizeni, ukuthunywa, kusukela kuleli phuzu kuphela. I-PSA inezinzuzo ezithile.