I-VPSA, noma i-Vacuum Pressure Swing Adsorption, ubuchwepheshe obusha obusetshenziswa ekukhiqizeni umoya-mpilo ohlanzekile. Le nqubo ihilela ukusetshenziswa kwesisefo esikhethekile se-molecular esikhangisa ngokukhetha ukungcola okufana ne-nitrogen, i-carbon dioxide, namanzi avela emoyeni ngomfutho womoya. Isisefo sibe sesihlanjululwa ngaphansi kwezimo ze-vacuum, sikhipha lokhu kungcola futhi sikhiqize umoya-mpilo ngezinga lokuhlanzeka lika-90-93%. Le nqubo yomjikelezo isebenza kahle kakhulu futhi ihambisana nemvelo, okwenza kube ukukhetha okuthandwayo ezimbonini ezidinga umthamo omkhulu womoya-mpilo omsulwa.
IIsitshalo se-oxygen se-VPSAisebenza ngochungechunge lwezingxenye eziyinkimbinkimbi, okuhlanganisa i-blower, ipompo ye-vacuum, i-valve yokushintsha, umbhoshongo we-adsorption, kanye ne-oxygen balance balance. Inqubo iqala ngokungena komoya oluhlaza, ohlungwayo ukuze kukhishwe izinhlayiya zothuli. Lo moya ohlungiwe ube usucindezelwa yi-Roots blower kungcindezi engu-0.3-0.5 BARG futhi uqondiswe komunye wemibhoshongo ye-adsorption. Ngaphakathi kombhoshongo, umoya uhlangana nezinto ze-adsorbent. Phansi kombhoshongo, i-alumina ecushiwe idonsa amanzi, i-carbon dioxide, namanye ama-trace gases. Ngaphezu kwalesi singqimba, izisefo ze-molecular ze-zeolite zikhanga i-nitrogen, evumela umoya-mpilo ne-argon ukuthi idlule njengegesi yomkhiqizo. Le gesi egcwele umoya-mpilo ibe isiqoqwa ethangini lokulinganisa umoya-mpilo.
Njengoba inqubo ye-adsorption iqhubeka, izinto ze-adsorbent kancane kancane zifinyelela ukugcwala. Kuleli qophelo, isistimu ishintshela esigabeni sokwenza kabusha. I-valve yokushintsha iqondisa ukugeleza kolunye uhlangothi, futhi ipompo ye-vacuum inciphisa ukucindezela embhoshongweni ku-0.65-0.75 BARG. Lesi simo se-vacuum sikhulula ukungcola kwe-adsorbed, okubese kukhishelwa emkhathini, kukhiqize kabusha ngempumelelo i-adsorbent yomjikelezo olandelayo.
IVPSA oxygen generatoryakhelwe ukusebenza ngokuqhubekayo, ihlinzeka ngokuhlinzekwa okuqhubekayo komoya-mpilo ohlanzekile. Ukusebenza kahle nokuthembeka kwayo kuyenza ibe yingxenye ebalulekile ezimbonini ezehlukene, okuhlanganisa ezokwelapha, ezokukhiqiza, nezokusansimbi. Amandla okukhiqiza umoya-mpilo esizeni anciphisa izinselele zokusebenza kanye nezindleko ezihlobene nezindlela zendabuko zokuphakela komoyampilo, njengokulethwa kwegesi ewuketshezi noma ecindezelwe.
Ngaphezu kwalokho, ubuchwepheshe be-VPSA buyahlaziywa, buvumela ukulungiswa ukuze kuhlangatshezwane namazinga ahlukene esidingo se-oxygen. Lokhu kuvumelana nezimo, kuhlangene nezinzuzo zayo zemvelo kanye nokusebenza ngendlela ephumelelayo, kubeka i-VPSA esikhundleniO2imboni yokukhiqizanjengesixazululo esiholayo sokukhiqiza umoya-mpilo endaweni yesimanje yezimboni. Njengoba izimboni ziqhubeka nokufuna izindlela zokukhiqiza ezisimeme futhi eziphumelelayo, isitshalo se-oxygen se-VPSA sibonakala njengobuchwepheshe bokucabanga phambili obuhlangabezana nalezi zindlela ngenkathi kuqinisekisa ukutholakala okuhambisanayo kwe-oksijeni ephezulu.
Isikhathi sokuthumela: Sep-29-2024
