Garlicin, the main medical constituent of garlic was extracted by using vapor compression vacuum distillation process and alcohol extract method respectively. 采用乙醇提取法和水蒸气减压蒸馏法分别对大蒜的主要有效成分大蒜素进行提取,并对乙醇提取法的工艺过程进行了探索;
The mathematic model of thermal vapor compression desalination system is given, and the simulation results show that the energy consumption of thermal vapor compression desalination system is less than that of the normal distillation plant. 通过对热力蒸汽压缩式海水淡化装置的分析,建立起其数学模型,模拟计算结果表明,与一般蒸汽直接加热式真空海水淡化系统比较,采用热力蒸汽压缩式海水淡化系统,其能耗明显降低。