文档介绍：PLC 在电厂干除灰系统中的应用和分析
王磊 1 王晓斌 1 王传宝 2
( 1 电子科技大学计算机学院,成都,610054;2 鹤壁同力发电有限责任公司,河南,458008)
摘要:干除灰逐渐成为电厂除灰方式的主流。文章在详细阐述了干除灰系统工作原理及可编
程逻辑控制器 PLC 的工作原理的基础上,设计了 PLC 控制系统。系统中,PLC 可根据料位计
传输过来的灰粉位置信号(高、正常、低)和仓泵上方的电接点压力表指示压力值信号,采
取相应的处理措施。采用 PLC 的干除灰系统抗干扰能力强,操作方便,且大幅度提高了粉煤
灰的综合利用率,产生了良好的社会效益和环境效益。
关键词:干除灰;自动控制系统;PLC(可编程序逻辑控制器)
中图分类号:TP286 文献标识码:A
The Application and Analysis of PLC in Dryly Eliminating Lime System in Electric Factory
Wang Lei1 Wang Xiao-bin1 Wang Chuan-bao2
(1 School puter, University of Electronic Science and Technology of China, Chengdu,
610054; 2 He Bi Tong Li Electric Power Limited pany, Henan, 458008)
Abstract: Dryly eliminating lime has e the mainstream method used in electric factory.
This essay devises the automatically-controlled system of dryly eliminating lime while elaborates
working principles of the system of dryly eliminating lime and the PLC (programmable logical
controller). In the system, PLC can take corresponding procedures judged by the stuff-location
signals (high, normal, low) transmitted from stuff-location-meter and the pressure signals
transmitted from electric-pressure-meter assembled above store-pumps. The system based on PLC
can provide more powerful anti-jamming capability, operate conveniently, enhance synthetic
utilization of lime greatly and bring good social benefits and environmental benefits in