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冷顶电熔窑电极冷却系统的PLC控制
作者:朱建华,贾激雷,张力 日期:2008-02-25/span> 浏览:4002 查看PDF文档
冷顶电熔窑电极冷却系统的PLC控制
朱建华,贾激雷,张力
(浙江科技学院 工程实践中心,浙江 杭州 310012)
摘要:根据冷顶电熔窑电极冷却水处理工艺和冷却要求,以可编程序逻辑控制器(PLC)为核心结合变频器、触摸屏、数字PID调节技术,运用组态软件,设计了控制系统。该系统以组态软件为平台,将3者整合为一体并实现了它们之间的通讯,运用PID技术进行恒压控制,使系统具有更高的稳定性和可靠性。仿真结果表明:该系统能有效控制水处理系统,并保证电极出水压力的恒定,且系统人机界面友好、操作和调试方便、可进行远程监控。
关键词:冷顶电熔窑;电极冷却;水处理;组态软件;可编程序逻辑控制器;变频器
中图分类号:TG4;TP273文献标识码:B文章编号:1001-4551(2008)01-0066-04
PLC control on the cooling of electrode system of the cold electricmelting furnace
ZHU Jianhua, JIA Jilei, ZHANG Li
(Center of Engineering Experiment, Zhejiang University of Science and Technology, Hangzhou 310012, China)
Abstract: According to the water treatment process of cold electricmelting furnace and the request of cooling, a control system was proposed which was related to the transducer, touch screen and digital PID control technology based on programmable logic controller (PLC), by using configuration software. The transducer, touch screen and digital PID control technology were integrated on the platform of configuration software, and the communication of each other was realized, and the higher stability and reliability were obtained by constant pressure control, using PID control technology. The simulation result shows that the system is reliable in controlling the water treatment system, ensures the output water pressure of electrode constant, and has a convenient humancomputer interface, easy to be operated as well as monitored remotely.
Key words: cold electricmelting furnace; cooling of electrode; water treatment; configuration software; programmable logic controller (PLC); transducer
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