全封闭热泵干燥装置监控系统的设计与试验  

Design and experiment of monitoring system for heat pump dryer of enclosed cycles

作　　者：倪超[1] 李娟玲[1] 丁为民[1] 范海亮[1] 陈山林[1] 

机构地区：[1]南京农业大学工学院,南京210031

出　　处：《农业工程学报》2010年第10期134-139,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家863项目(2007AA100406);江苏省农机局基金项目(gxz09009)

摘　　要：为了改善干燥试验过程中的监控方式,提高了试验的精确性和效率,减轻了试验人员的工作负荷,并支持后期数据分析,该课题将热泵干燥技术、自动检测控制技术、SCADA技术融合,开发出一套由热泵干燥装置、数据采集与监控系统组成的热泵干燥监控系统。系统由一套全封闭的热泵干燥装置执行干燥过程;数据采集系统采集干燥现场数据,OPC服务器通过通信协议获取数据;监控系统主要具备PLC自动控制和PC机监控功能。试验结果表明,该系统能够实现温湿度精确控制,并具备数据的实时显示、归档、信息报警等功能,将作为后续研究的试验平台。Aimed at improving the monitoring process as well as the accuracy and efficiency of drying experiments,reducing labour intensity and supporting the latter data analysis,the subject combined the heat pump drying technology with automatic detection and SCADA technology to establish a precise monitoring system of heat pump dryer.The system is mainly consisted of heat pump drying equipment,data acquisition and monitoring system.The drying process is finished by a completely closed heat pump dryer.The data acquisition system gathers the drying field data,OPC server will access data by the communication protocol.Monitoring system is mainly with functions of PLC automatic control and PC monitoring.The experiments show that the system can perform well in high precision temperature and humidity control,it is also with the functions of real-time data display and archiving,information alarm,etc.It can be used as an experimental platform for later researches.

关 键 词：热泵干燥技术 数据采集与监控技术 可编程控制 监控系统 

分 类 号：S24[农业科学—农业电气化与自动化] S226.6[农业科学—农业工程]