基于PLC的杀菌锅控制系统设计

Design of the Automatic Control System of Retorts Based on PLC

根据罐类产品杀菌工艺要求,针对原有杀菌锅存在的一些问题,设计了一套基于PLC的杀菌锅自动控制系统,详细介绍了系统的结构和工作原理、硬件配置、软件设计和调试经验。系统经八宝粥厂实际运行检验证明,该系统提高了杀菌锅运行的可靠性和自动化水平、提升了杀菌质量,降低了能耗,能同时适应多种罐类产品杀菌工艺要求,同时通过对杀菌锅的泄汽管路和控制方式的改进,有效降低车间温度、湿度、噪音,在实现热能回收的同时,降低了车间蒸汽消耗。

According to the requirement of sterilization process of canned food,and some problems of old sterilization pot,we designed the automatic control system of steam sterilization pot based on PLC. This paper introduces the structure and working principle of the system,hardware configuration,software design,and debugging experience. The application results in porridge factory show that,the system improves sterilization quality,reliability,and automation,and reduces energy consumption. The system meets the requirements of variety of canned products sterilization. Through the improvement of the retorts Bleeder and control mode,we reduce the temperature of a workshop,humidity and noise. Heat recovery is ensured while the consumption of steam is reduced.