PLC在水位控制系统中的应用毕业论文设计.docVIP

华东交通大学理工学院 Institute of Technology. East China Jiaotong University 毕 业 设 计 Graduation Design （2010 —2014年） 题 目 PLC在水位控制系统中的应用 分 院： 电气与信息工程分院 专 业： 电气工程及其自动化 班 级： 电力2010-1 学 号： 20100210410321 学生姓名： 杨杰 指导教师： 李房云 起讫日期： 2013.12——2014.5 摘 要 在当代社会，世界人口的不断增长和水资源的日益紧缺，日常生活和工农业中的供水问题愈发严峻，故对供水系统的水位进行精确的测量和控制越来越重要。PLC因为有着容易编程、使用简单、方便维修、可靠度高、极强的抗干扰能力和机电一体化等特点，所以利用PLC对水位进行测量和控制有着广阔的前景。 本设计是一个基于PLC控制的供水控制系统，主控制机是PLC可编程控制器。该设计针对性的对水塔水位自动控制系统里各个功能进行了分析，并且文中对系统各个器件的结构、操作流程，以及工作时协调控制的办法都有所讲解。本系统在实现准确自动控制同时，还将供水的质量进行了提高。并且此控制系统相对于传统的供水系统还有着降低劳动强度和提升劳动效率等优点。 关键词：水塔水位控制、PLC、自动控制系统 Abstract In contemporary society, the worlds growing population and the growing scarcity of water resources, the water supply problem in daily life and industrial and agricultural is increasingly severe, so the water level for the water supply system for precise measurement and control of more and more important. PLC with easy programming, simple to use, convenient maintenance, high reliability, strong anti-interference ability and characteristics of electromechanical integration, so the use of PLC to measure and control the water level has a broad prospect. This design is a water supply control system based on PLC control, the main control unit is PLC programmable controller. The design corresponding to the water tower water level automatic control system in each function is analyzed, and the various devices to the system structure, operation process, and work coordination control method are explained. This system in the realization of the accurate automatic control at the same time, will also improve the quality of the water supply. Compared with the traditional water supply system and the control system and the reduction of labor intensity and improve labor efficiency, etc. Key words: Water tower water level contr