关于智能供热几个关键技术的研究

发布时间：2018-02-21 11:40

本文关键词： 智能供热理论模型分户热计量智能分布式变频系统　出处：《山东建筑大学》2017年硕士论文　论文类型：学位论文

【摘要】：在“智慧城市”这一发展新理念的推动下,我国各大城市的智能化建设迅速发展,城市集中供热的智能化也得到了快速的发展。许多有识之士在城市、供热区域、小区或者换热站建设了智能化的供热系统。但是,目前城市智能供热缺少理论支撑,没有完善的模型,缺乏相关的规范。针对这个现状,本文针对智能供热中几个关键的技术展开研究。首先,对建筑物的热平衡以及智能供热系统各个外扰因素进行全面的理论分析。研究各个气象参数对室内热环境影响的衰减性和延迟性,并以济南为例计算了室外综合温度。简化气候补偿器对这些干扰因素的提取和应用过程,为提高气候补偿器性能提供理论依据。然后,对气候补偿器的工作原理进行了分析,提出了一种基于室外气候综合因素气候补偿器的前馈-反馈控制系统。分析对比了不同的末端控制系统,确定了最适合智能供热系统的末端控制模型。最后,应用图论理论对供热管网进行水力、热力分析,从控制论角度出发对传统阀门系统和分布式供热系统的调节性能进行了对比。采用HacNet软件建立模型,分别对传统阀门供热系统和分布式供热系统的运行效果进行模拟,从而确定了适合智能供热系统的管网形式。在此基础上分析了分布式变频供热的智能运行管理系统。通过对以上几个方面的理论分析,给智能供热系统提供了较为合理的模型,为以后城市智能化的设计发展提供理论支撑。只有具备了坚实的理论基础,我国的智能供热技术才能够得到迅速发展,为“智慧城市”的建设提供支撑保障。
[Abstract]:Driven by the new concept of "intelligent city", the intelligent construction of major cities in our country has developed rapidly, and the intellectualization of urban central heating has also been developed rapidly. Many people of insight are in the cities, heating areas, The district or heat exchange station has built an intelligent heating system. However, at present, the urban intelligent heating system lacks the theoretical support, the perfect model, and the related standard. In this paper, several key technologies in intelligent heating are studied. The thermal balance of buildings and the disturbance factors of intelligent heating system are analyzed theoretically. The attenuation and delay of each meteorological parameter on indoor thermal environment are studied. Taking Jinan as an example, the outdoor comprehensive temperature is calculated. The process of extracting and applying these disturbance factors is simplified, and the theoretical basis for improving the performance of climate compensator is provided. Then, the working principle of climate compensator is analyzed. This paper presents a feedforward and feedback control system based on outdoor climate integrative factor climate compensator, analyzes and compares different terminal control systems, and determines the most suitable end control model for intelligent heating system. Based on graph theory, the hydraulic and thermal analysis of heating network is carried out, and the adjustment performance of traditional valve system and distributed heating system is compared from the point of view of cybernetics. The model is established by using HacNet software. The operation effects of traditional valve heating system and distributed heating system are simulated respectively. On the basis of this, the intelligent operation management system of distributed frequency conversion heating system is analyzed. Through the theoretical analysis of the above several aspects, a more reasonable model for the intelligent heating system is provided. Only with a solid theoretical foundation, the intelligent heating technology of our country can develop rapidly and provide support for the construction of "intelligent city".
【学位授予单位】：山东建筑大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU995

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