气调干制技术与实验设备研究  

Technology and Test Device of Air Control Drying

作　　者：陆则坚[1] 陆蒸[1] 林启训[1] 陈颖[1] 

机构地区：[1]福建农林大学食品科学技术研究所

出　　处：《农业工程学报》2001年第6期111-114,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：福建省自然科学基金资助项目 ( B9910 0 10 )

摘　　要：介绍了干制过程气体成分调节方法和实验设备 ,通过双冷凝器、双蒸发器热泵系统的不同组合状态选择与压缩机变频控制配合 ,实现对密闭干燥系统内定量循环气体的温、湿度调节 ,采用专家控制系统与 PID控制软件相结合方法 ,达到对包括气体成分在内的干燥过程状态参数的智能化控制 ,实验表明 ,所研制 QTM干燥机能满足各种产品气调干制实验要求。A method and a test device of air control drying were introduced. Conditional selection of double condenser and evaporater heat pump system was combined with rapid adjustment of rotation of compreser to adjust temperature and humidity of circulational air in drying system. Automatic control of different ratios including air composition was completed by using Expert PID adjustnent method. Experiments indicated that this device is suitable for air control drying of different products and there was evident effect of oxygen content in drying process on the quality of dried product.

关 键 词：气调干制 热泵 专家控制系统 PID控制 农产品 

分 类 号：TS203[轻工技术与工程—食品科学] S375[轻工技术与工程—食品科学与工程]