A VPSA, kana Vacuum Pressure Swing Adsorption, inyanzvi yekuvandudza tekinoroji inoshandiswa mukugadzira yakakwira-kuchena okisijeni. Kuita uku kunosanganisira kushandiswa kwesefa ine hunyanzvi hwema molecular sefa inoshambadza tsvina yakaita senitrogen, carbon dioxide, uye mvura kubva mumhepo pamhepo. Iyo sieve inobva yasvibiswa pasi pemamiriro ekutsvaira, ichibudisa tsvina iyi uye ichibudisa okisijeni nechiyero chekuchena kwe90-93%. Iyi cyclical process inoshanda zvakanyanya uye ine hushamwari kwezvakatipoteredza, zvichiita kuti ive sarudzo inosarudzika kumaindasitiri anoda mavhoriyamu makuru eokisijeni yakachena.
TheVPSA oxygen chirimwainoshanda kuburikidza neakatevedzana ezvikamu zvakaomarara, zvinosanganisira blower, vacuum pump, switching valve, adsorption tower, uye oxygen balance tank. Kuita kunotanga nekupinzwa kwemweya mbishi, iyo inosefa kubvisa guruva. Mhepo yakasefa iyi inobva yamanikidzwa neRoots blower kune pressure ye 0.3-0.5 BARG uye yakanangidzirwa mune imwe yeadsorption tower. Mukati meshongwe, mhepo inosangana nezvinhu zve adsorbent. Pazasi peshongwe, yakagadziriswa alumina inoshambadza mvura, carbon dioxide, uye mamwe magasi ekutevera. Pamusoro peiyo layer, zeolite molecular sieves adsorb nitrogen, zvichibvumira okisijeni uye argon kupfuura segasi rechigadzirwa. Iri gasi rakapfuma-okisijeni rinobva raunganidzwa mutangi reokisijeni.
Sezvo iyo adsorption process inoenderera mberi, iyo adsorbent zvinhu zvishoma nezvishoma inosvika pakuzara. Panguva ino, sisitimu inochinja kuenda kuchikamu chekuvandudza. Ivhavha inoshandura inotungamirira kuyerera kune imwe nzira, uye pombi yevacuum inoderedza kudzvinyirira mushongwe kusvika 0.65-0.75 BARG. Iyi vacuum mamiriro anoburitsa adsorbed tsvina, iyo inozoburitswa mumhepo, ichinyatso gadzira patsva adsorbent kutenderera kunotevera.
TheVPSA okisijeni jenaretayakagadzirirwa kuenderera mberi kwekushanda, ichipa hutano hwakagadzikana hwepamusoro-kuchena oksijeni. Kushanda kwayo uye kuvimbika kunoita kuti ive chinhu chakakosha mumaindasitiri akasiyana siyana, kusanganisira zvekurapa, kugadzira, uye simbi. Iko kugona kuburitsa okisijeni pa-saiti kunoderedza zvimhingamupinyi uye mitengo inodyidzana neyechinyakare nzira dzekupa okisijeni, senge mvura kana yakamanikidzwa gasi kuburitsa.
Zvakare, iyo VPSA tekinoroji inokura, ichibvumira kuti zvigadziriso zvisangane neakasiyana okisijeni mazinga. Uku kuchinjika, kwakasanganiswa nemabhenefiti ayo ezvakatipoteredza uye mutengo-unoshanda, unoisa iyo VPSAO2chigadzirwa chekugadzirasemhinduro inotungamira yekugadzirwa kweokisijeni mune yemazuva ano maindasitiri mamiriro. Sezvo maindasitiri achiramba achitsvaga nzira dzakagadzikana uye dzakasimba dzekugadzira, iyo VPSA oxygen chirimwa inomira sehunyanzvi hwekufunga-mberi hunosangana nemaitiro aya apo hunoita kuti huvepo hunoenderana hwemhando yepamusoro okisijeni.
Nguva yekutumira: Sep-29-2024
