论文部分内容阅读
针对有热再生式压缩空气除湿装置在再生及冷吹过程中产生气耗的缺点,运用喷射器及恒压变温吸附再生原理设计了一种零气耗空气除湿工艺流程。在搭建小型实验台的基础上,通过改变喷射器引射率进行实验研究三种工况条件下活性氧化铝的吸附再生性能。实验结果表明:实验全过程能够保持一个相对稳定且有效的恒压变温吸附再生条件,且出口空气露点达到生产要求;随着喷射率的降低,吸附剂再生效果逐渐下降,而吸附效果逐渐上升。引射率为0.5时的再生时间约为引射率0.75的1.85倍,再生速率约为0.51倍。而引射率0.33,引射率0.5的吸附效率分别为引射率0.75的1.04倍,1.11倍,吸附稳定时间1.11倍,2.22倍。
Aiming at the shortcomings of gas regeneration in the regenerative and dehumidification process of regenerative compressed air dehumidification system, the zero gas consumption dehumidification process is designed by the principle of ejector and constant pressure swing adsorption. On the basis of setting up a small test bench, the adsorption and regeneration performance of activated alumina under three operating conditions was experimentally studied by changing the injector’s emissivity. The experimental results show that the experimental conditions can maintain a relatively stable and effective constant temperature and temperature swing adsorption regeneration conditions, and the outlet air dew point to meet the production requirements; with the injection rate decreases, the adsorbent regeneration effect gradually decreased, and the adsorption effect gradually increased. The repeatability time of 0.5 is about 1.85 times of the index of 0.75, and the regeneration rate is about 0.51 times. The emissivity of 0.33 and emissivity 0.5 were 1.04 times and 1.11 times of that of 0.75 and 1.11 times and 2.22 times respectively.