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真空冷冻干燥是一种使物料在低温低压下脱水的干燥工艺,具有许多优点。本文以某冻干机为研究对象,设计与开发了其控制系统并进行了相关实验。利用二次正交分析法对实验结果进行了分析,对冻干的关键参数时间、温度和真空度进行了优化。实验表明优化的参数可行。
Vacuum freeze-drying is a drying process that dehydrates materials at low temperatures and pressures, with many advantages. In this paper, a lyophilizer as the research object, the design and development of its control system and related experiments. The experimental results were analyzed by quadratic orthogonal analysis, and the key parameters of freeze-drying time, temperature and degree of vacuum were optimized. Experiments show that the optimized parameters are feasible.