毕业设计（论文）-基于labview的污水处理控制系统设计精选.doc

武汉轻工大学 毕 业 设 计（论 文） 设计(论文)题目：基于LabVIEW的污水处理控制系统设计 姓 名__ ___ 学 号__ _ 院（系） 电气与电子工程 专 业 指导教师______ 2016年月日目录 摘要 2 Abstract 3 1 绪论 4 1.1 污水处理控制系统的选题背景 4 1.2 国内外发展现状 4 1.3 城市污水处理的发展趋势 5 1.4本课题研究的内容 5 2污水处理系统设计 6 2.1 污水处理的工艺流程 6 2.1.1 污水的预处理 7 2.1.2 污水的生物处理 7 2.1.3 污水三级处理 8 2.2 污水处理控制过程设计 9 2.2.1 粗、细格栅的过程控制 9 2.2.2污水提升泵的运行过程 10 2.2.3曝气设备的过程控制 10 2.2.4污泥处理过程控制 10 3 污水处理的控制系统设计 11 3.1 污水处理厂控制系统的结构 11 3.2 电气原理图设计 12 3.3 PLC的I/O资源配置 13 3.3.1 数字量输入部分 13 3.3.2数字量输出部分 14 3.3.3 模拟量输入部分 14 3.3.4 模拟量输出部分 14 3.4 PLC的硬件原理图 15 3.5 PLC程序设计 16 4 基于LabVIEW的监控系统软件开发 20 4.1 LabVIEW的程序设计 20 4.3 LabVIEW与PLC通信连接的建立 22 结论 25 致谢 26 参考文献 27 摘要 随着社会工业化的加速发展，污水处理已然成为当今亟待解决的重要问题之一。转眼间，国内的工业化程度已经上升到了一个新的高度国外，工业化发展时间较短问题时间晚。所以的污水处理处于发展，同时存在技术水平不先进，自动控制程度不高到的过程来说，污的水质无人化工厂管理是必不可少的将和，连接以实现的效果运行过程能在直观的Abstract With the rapid development of industrial society, sewage treatment has already become one of the essential problems which are dealt with. Blink of an eye, the degree of industrialization in China has risen to a new level. However, compared with the foreign countries, the development time of industrialization in China is short, and this problem exposes lately . Therefore, the domestic sewage treatment is still in the early stage . In the mean time , the level is not advanced and automatic control level is low. In the sewage treatment process, involving many kinds of equipment, each process is complex and the processing technology is varied. Therefore, in our country, improving the degree of automation of sewage treatment system can ensure the quality which is significant in improving the productivity of sewage treatment. Nowadays, LabVIEW has more and more applications in system design of industrial automation.The end of computer is connected with LabVIEW. LabVIEW of the PLC output port is connected which is to finish the function of talk with each other. Operation processes can interface with intuitive reflect in the LabVIEW. The sewage treatment system is mainly used in urban