基于s7-1200PLC的水水换热站分布式系统设计

发布时间：2018-04-18 00:07

本文选题：PID + 换热站　；参考：《山东大学》2015年硕士论文

【摘要】：本课题的研究基于西门子s7一1200控制器,并结合暖通工程、计算机技术、自动化技术和通讯技术完成对水水系统换热站的远程监控,利用西门子WinCC OA上位机平台软件对所有实施自控系统的换热站进行数据采集、归档、分析。在单个换热站数据远传、站内控制的同时,实现对整个热网水力工况的实时监测,进而由站点到水线完成精确的数据远传和热量分配,为了达到人力、资源、能源的节省,得到最大的经济效益。本文选择民政局换热站进行站内自控系统设计及实施,实施完成后,将实现对站内一次网及二次网温度、压力、流量、热量等数据的远程监测。由于站点数量庞大,控制系统数据通讯量大、控制回路多,对远传通讯网络和控制系统的稳定性、可靠性、高效性提出较高的要求。另外,控制系统采用西门子Smart 700触摸屏为现场交互界面,两者构成现场独立的监控系统,可以在脱离远程监控系统的情况下就地运行并保存运行参数。本文设计的重点包括自控系统架构及方案的设计；自动控制功能的实现。并在最后对自控系统采集的一个采暖季的换热站运行数据进行分析,通过供热热耗的大小即可看出本自控系统的节能效果。
[Abstract]:The research of this subject is based on Siemens S7-1200 controller, combined with HVAC engineering, computer technology, automation technology and communication technology to complete the remote monitoring of heat exchange station of water water system.Using Siemens WinCC OA platform software to collect, file and analyze the data of all the heat exchange stations that implement the automatic control system.At the same time of single heat exchange station data remote transmission, station control, realize the real-time monitoring of the whole heat network hydraulic condition, and then complete accurate data transmission and heat distribution from the station to the waterline, in order to achieve manpower, resources, energy saving,Get the maximum economic benefit.This paper chooses the heat exchange station of the Civil Affairs Bureau to design and implement the automatic control system in the station. After the implementation of the system, the remote monitoring of the temperature, pressure, flow, heat and other data of the primary network and the secondary network in the station will be realized.Because of the large number of stations, the large amount of data communication in the control system and the large number of control loops, the stability, reliability and efficiency of the remote communication network and the control system are required.In addition, the control system adopts Siemens Smart 700 touch screen as the field interactive interface. The two systems constitute a field independent monitoring system, which can be operated in place and save the operation parameters without remote monitoring system.This paper focuses on the design of automatic control system architecture and scheme, the realization of automatic control function.Finally, the operation data of a heating station in the heating season collected by the automatic control system are analyzed, and the energy saving effect of the automatic control system can be seen by the magnitude of the heat consumption of the heating system.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU83

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