煤矿水源热泵中央空调集散控制系统研究

发布时间：2018-04-21 08:24

本文选题：水源热泵 + 集散控制系统　；参考：《安徽理工大学》2015年硕士论文

【摘要】：伴随着我国工业化的步步深入和城市化的高速发展,不可再生能源的需求量持续攀升、有增无减。人民生活水平的不断提高也伴随着大量化石能源消耗,同时,温室气体、有害气体以及细颗粒物(PM2.5)的排放量也在不断增大。当排放量超过大气循环能力和承载度时,便很有可能导致大范围雾霾天气的形成。雾霾不仅给人民生活和交通带来不便,还会威胁人体呼吸系统甚至是心血管系统的健康。因此为了改善空气质量、节约煤炭资源、减轻生态环境的负担,可再生清洁能源的开发利用已是迫在眉睫、势在必行。本研究将地下水资源作为冷热源对煤矿的工作区和住宅区进行制冷和供暖,并借助集散控制技术实现对中央空调系统的自动调节,结合舒适性、环保性、实用性于一体。不仅代替了传统燃煤采暖设备,而且进一步减少了制冷和供暖过程中的电量消耗,节约能源的同时有效地减少了设备的数量及占地面积。本文从地下水源热泵技术的结构特点和工作流程出发,分析了地理条件对地下水源热泵系统性能的影响,描述了中央空调系统的变频控制的基本思路,继而从硬件、PID控制算法和软件三个角度概括叙述了中央空调集散控制系统,并在详细介绍系统的硬件设计的同时,着重介绍了系统的上位机软件设计以及下位机中所运用的带死区增量型数字PID控制算法。本系统将水源热泵与集散控制技术有机结合在一起,对于节能环保有着极其重要的意义,并且有极为宽广的应用前景。
[Abstract]:With the deepening of industrialization and the rapid development of urbanization, the demand for non-renewable energy is increasing. Rising living standards are accompanied by a large amount of fossil energy consumption, as well as emissions of greenhouse gases, harmful gases and fine particulate matter (PM2.5). When emissions exceed atmospheric cycling capacity and carrying capacity, it is likely to lead to the formation of a wide range of haze weather. Haze not only brings inconvenience to people's life and transportation, but also threatens the health of human respiratory system and even cardiovascular system. Therefore, in order to improve air quality, save coal resources and lighten the burden of ecological environment, the development and utilization of renewable clean energy is urgent and imperative. In this study, groundwater is used as a source of cold and heat to refrigerate and heat the work area and residential area of coal mine, and the automatic adjustment of central air conditioning system is realized by means of distributed control technology, which combines comfort, environmental protection and practicability. It not only replaces the traditional coal-fired heating equipment, but also reduces the consumption of electricity in the process of refrigeration and heating. Based on the structural characteristics and work flow of groundwater source heat pump technology, this paper analyzes the influence of geographical conditions on the performance of underground water source heat pump system, and describes the basic idea of frequency conversion control of central air conditioning system. Then, from three aspects of hardware pid control algorithm and software, the central air conditioning distributed control system is described, and the hardware design of the system is introduced in detail. The software design of the upper computer and the incremental digital PID control algorithm with dead zone used in the lower computer are introduced emphatically. The system combines water source heat pump with distributed control technology, which is of great significance for energy saving and environmental protection, and has a wide application prospect.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD67

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