原理
所谓真空干燥，就是将干燥物料处在真空条件下，进行加热干燥，如果利用真空泵进行抽气抽湿，则加快了干燥速率。
注：如采用冷凝器，物料中的溶剂可通过冷凝器加以回收；如采用SK系列水环真空泵，可不用冷凝器，节省能源投资。
Principle
Vacuum drying means to heat the materials to be dried under vacuum
conditions. If a vacuum pump is used for air evacuation and humidity removal,
the drying speed will be increased.
Note: If a condenser is adopted, the solvent in the materials can be
recovered through the condenser. It the SK series water loop vacuum pump is
adopted, there is no need to use the condenser, so that energy is saved.
技术特点
●真空下物料溶液的沸点降低，使蒸发器的传热推动力增大，因此对一定的传热量可以节省蒸发器的传热面积。
●蒸发操作的热源可采用低压蒸汽或废热蒸汽。
●蒸发器热损失少。
●在干燥前可进行消毒处理，干燥过程中无任何不纯物混入，符合GMP要求。
●属于静态真空干燥器，故干燥物料的形体不会损坏。
Technical features
●Under vacuum, the material solution boiling point decreases, and
the heat transfer driving force increases, so that heat transfer area of the evaporator
can be saved.
●The heat source for evaporation can be low pressure steam or waste
heat steam.
●The evaporator heat loss is low.
●The machine can carry out sterilization before drying, and does not
have any impurities during drying, conforming to GMP requirements.
●The machine is a static vacuum dryer. Therefore, the shape of dried
materials will not be damaged.
