真空条件下LiCl溶液蒸发量随浓度变化规律研究

除湿溶液再生是除湿空调系统的核心过程,为了提高除湿溶液再生效率,以蒸发量作为评价标准,在不同的真空度下对不同浓度LiCl溶液进行再生。对不同再生条件下,溶液的再生情况进行数学模拟及实验研究,并将模拟结果与实验结果进行对比分析,结果表明,实验结果同模拟结果具有相同的变化趋势。在6 kPa和8 kPa的压强下,LiCl溶液的蒸发量随浓度的增大先上升后下降,而在1 kPa的压强下,LiCl溶液的蒸发量随浓度的增大呈现出先下降再升高接着又下降的趋势。

Study on the variation of evaporation of LiCl solution with concentration under vacuum conditions

Desiccant solution regeneration process is the core of the desiccant air conditioning system.In order to improve the regeneration efficiency of dehumidifying solution,evaporation was used as the evaluation criterion to regenerate LiCl solution with different concentration at different vacuum degrees.The regeneration of solution under different regeneration conditions was simulated and experimentally studied,then the simulation results were compared with the experimental results.The results indicate that,the experimental results show the same trend as the simulated results.Under 6 kPa and 8 kPa pressure,the evaporation of LiCl solution first increases and then decreases with the increase of concentration.While under 10 kPa pressure,the evaporation of LiCl solution first decreases and then increases and then decreases with the increase of concentration.