针对溴化锂水溶液沿竖直板翅通道降膜吸收水蒸气的过程 ,建立了开式系统、间歇式运行的实验台。应用VisualC++语言编制了软件 ,实现了实验数据的计算机自动采集、处理、计算和汇总。针对影响降膜吸收传热传质的因素进行了相应的实验研究 ,从而验证了实际降膜吸收过程中的溴化锂水溶液浓度的应用范围 Aiming at the process that lithium bromide absorbs water vapor along the falling film of the vertical wing-fin channel, an open-system and intermittent operation bench is established. The application of Visual C + + language software, to achieve the experimental data of the computer automatically collected, processed, calculated and summarized. Aiming at the factors affecting the heat transfer and mass transfer of the falling film, a corresponding experimental study was carried out to verify the range of application of the concentration of lithium bromide solution in the process of falling film absorption