140CPU67861
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摘要:介绍了PLC和触摸屏在橡胶坝控制系统中的应用,设计了橡胶坝远程自动控制系统。分析了橡胶坝控制系统的组成结构、工作过程和PLC梯形图控制流程及触摸屏人机界面设计。该系统性能可靠、操作方便、自动化程度高、人机界面直观,有较高应用价值。
关键词:PLC;触摸屏;橡胶坝
中图分类号:TV644:TP391 文献标识码:B 文章编号:1000-0860(2008)10-0113-03
1 引言
橡胶坝是20世纪50年代末随着高分子合成材料工业的发展而出现的一种新型水工建筑物,具有造价低、节约材料、施工周期短、管理灵活、控制方便、运行稳定等优点¨]。为了减轻工作人员的负担,提高橡胶坝优化运行程度,增强系统抗干扰性,避免硬件老化损失,本文采用三菱PLC和HITECH触摸屏研制开发了一种小型橡胶坝自动控制系统。
2 橡胶坝控制系统结构及工作过程
山东威海哈工大自动化研究所与青岛华海公司合作开发了一级橡胶坝自动监控系统项目,该项目采用充水式橡胶坝,并且在河道附近修建了一个深水蓄水池。系统组成结构如图l所示。该橡胶坝长32m,高3 m,宽3.5 m。泵A、泵B均为扬程50 m、流量60~100m³/h、功率22 kW/380 V的ISl00—65—200型号潜水泵,水管内径300 mm。D1—194为电动执行
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