毕业设计论文基于pc的供暖锅炉控制系统的设计.docVIP

毕业设计[论文] 题 目： 《基于plc的供暖锅炉控制系统的设计》 学 院： 电气与信息工程学院 专 业： 姓 名： 学 号： 指导老师： 完成时间： 摘 要 随着生活水平地不断提高，人们对城市生活供暖质量要求越来越高。目前，冬季采用锅炉取暖在我国北方仍然占据主导地位，但锅炉房中控制系统的各配置落后的问题相对比较严重，其控制操作仍然主要依靠管理员的手工操作，对于风机和水泵电机的控制，过程很复杂并且对电和燃料的消耗量十分巨大，同时锅炉水温度也无法通过手动控制改变并及时对改变作出适当的回应。 本文设计的水温供暖锅炉控制系统主要采用PLC和变频调速技术。该控制系统由变频器、S7–200系列PLC、鼓风机、引风机、水泵等构成。对于系统中所涉及到的各个电机，其启动调速和停止，并不是通过直接控制的手段，而是利用变频器变频调速的特性来实现的。以及PID调节控制，以MCGS组态软件设计组态界面和控制界面，以实现实时监控。 为了有效地降低能源消耗，提高生产管理水平，本文设计的系统具有锅炉水温、燃烧过程自动控制的功能。实现了安全可靠地系统安装维护；由MCGS制作的上位机，画面直观，操作方面，监控方便。 关键词：供暖锅炉；变频调速；PLC ABSTRACT With living standards improving, the demanding of people with the city heating quality is becoming stricter. Currently, the use of boiler heating in winter in northern China is still dominant, but the lag issue of the boiler room configuration is relatively serious in the control system. The control operation is still mainly rely on the administrators manual。The control of the fan and pump motor, which process is very complex and on electricity and fuel consumption is huge。Meanwhile boiler water temperature can not be changed by manually controlled and timely responded appropriately. This design of water heating boiler control system in this paper mainly adopts PLC and frequency control technology. The control system consists of a programmable controller, inverter, fan and pump motors, sensors, and configuration MCGS. In order to achieve real-time monitoring ，the starting, running and speed of motor are controlled by inverter , as well as PID regulator controlling and MCGS configuration software design configuration interface and control interface are used in the paper. Industrial boiler control system designe