设计了一种封闭空间膨胀珍珠岩除湿的吸附系统，进行了湿空气流速、吸附剂层数和吸附剂铺放密度的单因素试验和三因素三水平正交试验，分析了各因素对除湿系统除湿性能的影响关系。试验结果表明，随着气流速度的增加，除湿速度随之增大，单位能耗也相应地减少，在一定范围内可采用相对较高湿空气流速，提高除湿效率；随着吸附剂层数的增多，除湿能力提高；随着吸附剂铺放密度的增加，湿空气与吸附剂颗粒之间的传热传质能力得到提高，除湿速率增大，单位能耗相对减少。

The dehumidified adsorption system of expanded perlite in a closed space was designed and orthogonal experiments of three-factor and three-level and single factor for current velocity of wet air, sorbent layer, laid density of sorbent were processed. The effect of the above diversified factor on dehumidification performances was analyzed. The experimental results show that dehumidified velocity increases with air current, and dehumidified time decreases accordingly, higher current velocity of wet air is adopted within a certain scope, which increases dehumidification efficiency. And dehumidification ability improves with adsorbent layer increment. With laid density of adsorbent increment, the ability of heat and mass transfer between wet air and adsorbent grain has improved. Dehumidification velocity increases, and consuming time decreases correspondingly.

陈小兰(1974—),女,江苏扬州市人,扬州技术师范学院讲师,主要研究方向为农业机械与农业生物质燃料