小型可调式变压吸附制氧装置性能的实验研究

The Experimental Research on the Performance of the Small Scale Adjustable Rich Oxygen Device by Using Pressure Swing Adsorption

利用自行研制出的小型可调式变压吸附制氧装置研究了冲洗量、出口流量和出口压力对产品气氧浓度的影响。实验结果表明，１．当出口流量越大时，出口压力越小，反之亦然。２．压力对氧浓度影响很大，压力增高，氧浓度迅速增大。３．出口富氧浓度与流量大小有密切关系，还与冲洗量大小有关。出口流量的增大会引起产品气氧浓度的降低。当冲洗量过大或过小时，减小流量，氧浓度提高不大。对于冲洗量适中的情况，流量小于２Ｌ／ｍｉｎ时，减小流量，浓度提高很快；但当流量大于２Ｌ／ｍｉｎ时，降低流量，浓度变化不大。４．冲洗量对浓度影响较大，当冲洗量适中时（阀门角度为１８０°），产品气氧浓度较高，过大或过小时都会降低富氧浓度。本装置产品富氧气中氧气浓度最高可达到７５％，其流量为０５Ｌ／ｍｉｎ，当富氧浓度为５５％时，流量可达３５Ｌ／ｍｉｎ，说明本装置完全达到并超过了设计要求，很适合于氧巴和家庭。

A small scale adjustable rich oxygen device by using PSA is constructed and the effects of purge,flux and pressure on the oxygen concentration of productive gas are tested by use of the device.The experimental results show that 1.When the flux is high,the pressure is low.2.The pressure has dramatic affects on the oxygen concentration.3.The effect of flux on the oxygen concentration is related to the value of flux and the purge.When the flux of oxygen riching product is highs the concentration is low.When the purge is too high or too low,the flux of oxygen riching product has little effect on the oxygen concentration.When the purge is moderate and the value of flux is lower than 2 L/min,the flux has great effect on the concentration;when the value of flux is higher than 2 L/min,the effect becomes little.4.The purge has considerable effects on the oxygen concentration.When the purge is moderate(the angle of the valve is 180°),the oxygen concentration is higher;if the value is too high or too low,the oxygen concentration is lower.The highest concentration of oxygen riching product is about 75% O 2 by using this device,while the flux is 0 51 L/min.When the oxygen concentration is 55%,the flux can be as high as 3 5 L/min.This shows that the decive is quite suitable for home and oxygen bar and it will have great economic benefits.