WZI型外加热式真空蒸发器是一种在真空系统下操作的自然循环型蒸发器。
      WZI型有一效、二效、三效系列规格，另有Q型为强制外循环蒸发器。本品可用于医药、食品、化工、轻工等行业的水或有机溶媒溶液的蒸发浓缩。适用于热敏性物料，（例如中药生产的水、醇提取液、抗生素发酵液、牛奶、果汁等），在真空条件下进行低温连续浓缩，可确保产品质量。
WZI type external heating vacuum evaporator is a kind of natural circulating evaporator operated under vacuum system.
WZI type includes single-effect, double-effect and three-effect series. In addition, there’s Q type compulsory external circulating evaporator. This product can be widely used for evaporation and concentration of water or organic solvent solution in medicine industry, food industry, chemical industry and light industry, etc. It is especially applicable for low-temperature concentration of heat-sensitive materials (such as water produced by traditional Chinese medicine, extracted liquid from alcohol, fermentation broth of antibiotics, milk, juice, etc). The product quality can be ensured.