中药煎提液往往因含蛋白质、皂甙等表面活性机成分,在薄膜蒸发时会产生大量泡沫,现行的汽液分离器有时难以达到理想的分离效果,大量泡沫携带药液进入冷凝器(或直接排走),造成收率降低,药品质量下降。目前,生产中多采用控制药液流速 Traditional Chinese medicine decoction is often due to the presence of surfactants, such as proteins and saponins, which produce a lot of bubbles when the film evaporates. It is sometimes difficult to achieve the desired separation effect for the existing vapor-liquid separators. A large number of foams carry the liquid into the condenser (or directly Expulsion, resulting in reduced yields and decreased drug quality. At present, the control of the liquid flow rate is often used in production.