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升膜式薄膜蒸发器传热系数大,蒸发速率高,药液在蒸发器内的停留(受热)时间短,非常适合于热敏性药液的浓缩。其结构简单,容易制作,故无论在药房或药厂制剂中都可应用。各单位在实践的基础上,对升膜式蒸发器的使用积累了不少经验,对其装置亦不断有所改进。现将本刊近期收到的有关升膜式蒸发装置的改进的稿件综合报道如下。一、涟源钢铁厂职工医院蒋太元来稿说:该院用u形铜管制作一种“预热-升膜”组合形式的薄膜蒸发器。其装置见图1。
L film-based thin-film evaporator heat transfer coefficient, high evaporation rate, the liquid in the evaporator to stay (heat) time is very short, very suitable for heat-sensitive liquid concentration. Its structure is simple, easy to make, so both in the pharmacy or pharmaceutical preparations can be applied. On the basis of practice, all units have accumulated a great deal of experience in the use of membrane-lift evaporators and have continuously improved their installations. Now we have recently received an update on the film-type evaporating device manuscripts are summarized below. First, Lianyuan Iron and Steel Plant Workers Hospital Chiang Kai-Yuan manuscript said: The hospital with u-shaped copper tube to produce a “preheat - liter film ” combination of thin film evaporator. The device shown in Figure 1.