基于高压雾化的溶液除湿性能实验研究

Experimental study of liquid desiccant by high-pressure atomization

采用高压雾化将除湿液雾化成细小颗粒,可增大溶液除湿的接触面积,从而提高除湿效率。基于高压雾化的原理,搭建高压雾化溶液除湿系统实验台,研究空气量、溶液流量、空气状态对雾化除湿性能的影响。结果表明:高压雾化溶液除湿系统的除湿量随空气量、进口空气含湿量以及溶液流量的增加而增加;在进口空气温度为29.5℃,含湿量为21.44 g/kg,液气比为0.19的情况下,实验系统单位溶液除湿量可达15.78 g/kg;实验过程中,单位溶液的平均除湿量为10.39 g/kg;在相同除湿量下,雾化溶液除湿的单位溶液除湿量比传统填料式除湿器高2倍以上;拟合出除湿量的经验公式,可知实验值与测量值吻合得较好。

Liquid desiccant using high-pressure atomization makes the liquid into small particle,increases the interface area of dehumidification,and enhances the dehumidification efficiency. This paper establishes an experiment table based the principle of highpressure atomization,studying the performance of different air amount,different flow rate of liquid,different inlet air humidity ratio. The results show that dehumitification amount increases as the increase of inlet air flow rate,inlet air humidity ratio and inlet solution flow rate; when inlet air temperature is 29. 5℃,humidity ratio is 21. 44 g / kg,liquid-air ratio is 0. 19,every unit mass liquid can remove 15. 78 g / kg water from the air,and the average dehumidify capacity of solution is 10. 39 g / kg. At the same dehumitification amount,atomazation liquid is twice higher as much as the tranditonal packed-bed liquid descciant. Making the fit of empirical formula,analytical results show good agree with the experimantal results.