集中供暖控制系统设计与实现

发布时间：2018-03-31 04:04

本文选题：集中供暖　切入点：监控系统　出处：《北京理工大学》2014年硕士论文

【摘要】：集中供暖的发展水平已被公认为是衡量一个城市现代化的标志,而集中供暖控制系统管理水平将制约着集中供热技术的发展,成为集中供暖事业发展的关键。本文根据我国现阶段集中供热行业的发展现状,提出“热网动态平衡控制法”,即在“单位时间内按供热面积平均分配热源的供热量”来控制热用户的得热量,并通过集中供暖的数据采集与监视控制系统,来实现全网热用户的室温达到动态平衡的方法。本文较好地解决了城市集中供热监控系统的三大关键技术问题。第一要点,设计的就地分散的PLC控制系统,实现了二级热力站无人值守的目地,减少了人力运营管理成本。第二要点,采用光纤、ADSL和GPRS等通讯手段,建成虚拟局域VPN网,实现就地分散PLC控制系统到中央集中的数据采集与监视控制系统的数据和指令能实时、安全、可靠的传输,实现了供热系统的整体控制的目标。第三要点,将原有的“热源——热网——热力站”系统分别、独立的控制方法,设计为在中央监控中心对整个热网全方位监控,实现对这个热网集中调节的目的,并保证各个热力站现场能实现就地分散控制的方法,基本上解决了部分地区供热行业现存的最终热用户得热不均匀,整个供热管网供热失调的老大难问题,基本实现以相对最优化的能源利用,达到相对最佳的供热效果。采用上述的方法,设计实现的集中供暖自动化控制系统,势必为我国相关地区的集中供热行业减少能源消耗,减少因供热系统产生的废气、废物,从而改善当地供热环境,并提高当地供热效果的均匀性,为当地供热行业带来新的发展。
[Abstract]:The development level of central heating has been recognized as a symbol to measure the modernization of a city, and the management level of central heating control system will restrict the development of central heating technology and become the key to the development of central heating.According to the present situation of the central heating industry in our country, this paper puts forward the "dynamic balance control method of heat network", that is, "the heat supply of heat source is distributed equally according to the heating area per unit time" to control the heat gain of the heat user.Through the data acquisition and monitoring control system of central heating, the method of achieving dynamic balance at room temperature is realized.In this paper, three key technical problems of urban central heating monitoring system are well solved.The first point is the design of the local decentralized PLC control system which realizes the unattended target of the secondary thermal station and reduces the cost of human operation management.Secondly, the virtual local area VPN network is built by means of optical fiber ADSL and GPRS. The data and instructions from the local distributed PLC control system to the central centralized data acquisition and monitoring control system can be transmitted in real time, safely and reliably.The goal of overall control of heating system is realized.The third point is that the original "heat source-heat net-thermal station" system is designed to monitor the whole heat network in the central monitoring center separately and independently, so as to achieve the purpose of centralized regulation of the heat network.And to ensure that the local decentralized control method can be realized in various thermal stations, which basically solves the old and difficult problem of the existing end heat users of the heating industry in some areas and the heating maladjustment of the whole heating network.To achieve relatively optimal energy use, to achieve the best heating effect.By adopting the above method, the automatic control system for central heating is designed and realized, which is bound to reduce energy consumption, waste gas and waste generated by heating system for the central heating industry in relevant areas of our country, thereby improving the local heating environment.And improve the uniformity of the local heating effect, bring new development for the local heating industry.
【学位授予单位】：北京理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU995

【参考文献】