摘 要PLC 基于污水处理系统中的应用摘 要随着国家城市的快速发展，环境问题显得越来越重要。污水是破坏环境以及影响生活的重要因素，目前我国的污水自动处理系统相对于其他国家较落后，成本也一直居高不下，处理过的污水的水质也不是很稳定，所以建立一个有效的自动控制系统，优化运行效果，具有重要的意义。本文在分析了工业污水处理工艺及工业污水处理系统的组成后，选择西门子 S7—200 系列 PLC 作为工业污水处理系统的电气控制系统的控制主机，分析设计了工业污水处理的硬件系统，和工业污水处理的软件系统，并最后进行了调试。关键词：污水处理；PLC；硬件配置；软件设计IAbstractThe use of PLC in sewage treatment systemAbstractWith the rapid development of cities, the environment becomes more and more important .Wastewater is one of the major factor of pollute the environment .The automatic controlling system of wastewater treatment is not very advanced in China .The water qualities of the treated wastewater are unstable .So how to solve the problem is very meaningful to our countryBased on the analysis of the industrial wastewater treatment process and the composition of industrial wastewater treatment system, Siemens S7-200 series PLC is chosen as the industrial wastewater treatment system of electrical control system of the host, the analysis and design on the hardware system of industrial wastewater treatment, industrial wastewater treatment and the software system, and finally has carried on the debugging.Key Words: sewage treatment; PLC; Hardware disposition; Software design II目 录摘要............................................................................................................IAbstract...................................................................................................II第一章 绪论..............................................................................................11.1 课题研究的背景和意义................................
