大型CPT玻璃窑炉计算机控制系统

在不影响正常生产的情况下,作者先对大型彩色显象管(CPT)玻璃窑炉进行了分析和建模,然后针对不同回路采用了修正PID、前馈补偿与解耦、非线性补偿和自校正控制等方法,有效地控制了窑炉的各工艺参数。该系统软件采用任务管理方式,结构合理,易于开发。该系统投入长期运行后,在降低能耗、提高产品数量和质量,以及延长窑炉寿命等方面有显著经济效益。

Computer Control System of a Big CPT Glass Furnace

Analysis and modeling for a Color-Picture-Tube (CPT) glass furnace have been done without any great influence on the normal operating conditions. Then, the modified PID control, feedforward compensation and decoupling, nonlinear compensation and self-tuning control etc. have been used for different loops of plant, and therefore, the furnace has been controlled effectively. A microcomputer Intel 86/330A with a real-time operating system iRMX86 and language PL/M-86 is used to implement the on-line computer control. The software package of the computer control system consists of many modules, which has a reasonable configuration, and can be developed easily. Operation results indicate that the system provides a significant economic effect on the product quality, fuel consumption and furnace life.