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SZJY-PSA農業制氧機采用(yong)高品(pin)質的沸(fei)(fei)石(shi)分子篩作為吸附(fu)(fu)劑,在一(yi)定的壓力下,從空(kong)(kong)氣中(zhong)(zhong)制(zhi)取(qu)氧(yang)(yang)氣。經(jing)過純化干(gan)燥的壓縮空(kong)(kong)氣,在吸附(fu)(fu)器中(zhong)(zhong)進行加壓吸附(fu)(fu)、減壓脫附(fu)(fu)。由于(yu)空(kong)(kong)氣動(dong)力學效應(ying),氮(dan)在沸(fei)(fei)石(shi)分子篩微孔中(zhong)(zhong)擴散速率遠(yuan)大于(yu)氧(yang)(yang),氮(dan)被沸(fei)(fei)石(shi)分子篩優(you)先(xian)吸附(fu)(fu),氧(yang)(yang)在氣相中(zhong)(zhong)被富集起來,形(xing)成成品(pin)氧(yang)(yang)氣。然后經(jing)減壓至常壓,吸附(fu)(fu)劑脫附(fu)(fu)所吸附(fu)(fu)的氮(dan)氣等(deng)雜質,實(shi)現再(zai)生。一(yi)般在系統中(zhong)(zhong)設置兩個吸附(fu)(fu)塔(ta)(ta),一(yi)塔(ta)(ta)吸附(fu)(fu)產(chan)氧(yang)(yang),另一(yi)塔(ta)(ta)脫附(fu)(fu)再(zai)生,通過PLC程序控制(zhi)器控制(zhi)氣動(dong)閥的啟閉,使兩塔(ta)(ta)交替(ti)循環,從而(er)取(qu)得純度較高的氧(yang)(yang)氣(93%±3%)。
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