包头市工业厂房采暖系统的优化研究

发布时间：2018-01-19 10:07

本文关键词： 工业厂房暖风机散热器 CFD模拟经济分析污水源热泵　出处：《西安建筑科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：本论文主要对包头市地区工业厂房在采暖过程中的采暖末端设备和采暖热源进行了优化研究，包头市地处中国北方地区，属于寒冷地区，所以工业厂房的采暖问题受到了高度的重视。工业厂房的采暖形式及在采暖过程中出现主要问题有以下几个：采暖空间达不到理想的效果、水平方向和垂直方向的温度梯度非常大，在设计过程中，按照计算的负荷和室内设计要求的温度布置了足够的散热器，但是总是达不到理想的采暖效果往往不能明确原因。针对这些问题作者通过现场调研、CFD模拟分析和经济性分析计算对包头市某机械成品加工车间的采暖工程进行了优化设计，提出适合工业厂房的采暖系统。首先通过对包头市20家中小型机械加工厂的现场调研，了解了一下工业厂房在采暖过程中所使用的采暖末端设备、采暖热源和生产过程中的余热废热情况，经过对调研数据的整理分析确定研究方案。然后运用CFD模拟软件对各个方案进行了数值模拟，对模型从室内空气的温度场、空气的速度场等方面对室内环境的热舒适性进行了比较。通过对比传统散热器和暖风机在采暖时的室内温度和速度场，得到采用暖风机平行送风，，风速保持在5m/s，出风口角度为水平倾角45°，安装高度为5m时的采暖效果最好，水平方向和竖直方向上的温度分布都很均匀。最后从热源方面采用经济性计算分析的方法对工业厂房的采暖热源形式做了经济性评价。通过经济性的计算结果分析得到，初投资最高的费用是太阳能采暖系统，最低的是污水源热泵系统；年运行费用最高的是燃油热水锅炉，最低的是污水源热泵系统；费用年值最高的是燃油锅炉，最低的是污水源热泵，其次是太阳能采暖系统。本论文对今后的工业厂房采暖设计具有很重要的指导意义，在解决厂房采暖问题作为很好的依据。
[Abstract]:This paper mainly studies the optimization of heating terminal equipment and heating heat source of industrial plant in Baotou area. Baotou city is located in the north of China and belongs to the cold region. Therefore, the heating problem of industrial factory buildings is highly valued. The heating forms of industrial buildings and the main problems in the process of heating are as follows: the heating space can not achieve the desired results. The temperature gradient in horizontal and vertical direction is very large, in the design process, according to the calculated load and the temperature required by the indoor design, enough radiators are arranged. But always can not reach the ideal heating effect is often not clear reasons. In view of these problems the author through field research. The optimization design of heating engineering in a mechanical finished product processing workshop in Baotou City was carried out by CFD simulation analysis and economic analysis calculation, and the heating system suitable for industrial workshop was put forward. First of all, through the field investigation of 20 small and medium-sized machinery processing plants in Baotou City, we know the end heating equipment, heating heat source and waste heat in the process of production. Through the research data collation and analysis to determine the research program. Then the CFD simulation software is used to simulate the temperature field of the model from the indoor air. The thermal comfort of indoor environment is compared in terms of air velocity field and so on. By comparing the indoor temperature and velocity field of traditional radiator and heating fan, the parallel air supply with heating fan is obtained. When the wind speed is kept at 5 m / s, the outlet angle is 45 掳horizontal dip angle, and the installation height is 5 m, the heating effect is the best, and the temperature distribution in horizontal and vertical direction is very uniform. Finally, the economic evaluation of the heating source form of industrial plant is made by using the method of economic calculation and analysis from the aspect of heat source, and the result of economic calculation is obtained. The highest initial investment is solar heating system, the lowest is sewage source heat pump system; The annual running cost is the highest for oil-fired hot water boiler and the lowest for sewage source heat pump system. The highest annual cost is oil-fired boiler, the lowest is sewage source heat pump, followed by solar heating system. This paper has very important guiding significance for the future industrial workshop heating design, as a good basis to solve the factory building heating problem.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU832.53

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