【作者】 王忠；

【导师】 彭岚； 李炯；

【作者基本信息】 重庆大学 ， 动力工程， 2005， 硕士

【摘要】 随着我国经济持续、快速发展,能源紧张的问题日益突出,节能不仅成为了每一个企业的重要任务,同时也成为了一个最热门的话题。供热系统的经济运行是节约用能的一个关键环节,而对供热系统的综合测试、分析与评价则是检验系统是否经济运行的有效手段,同时找出系统中浪费能源的原因,并针对性地制定改进措施。本课题立足于云南大理卷烟厂供热系统的工程实际,用能量平衡与火用平衡相结合的方法对其供热系统的三大环节(热源、管网和用热设备)进行综合测试,不但揭示了该系统能量的数量利用程度,而且探明了能量的质量利用程度。通过对云南大理卷烟厂供热锅炉系统和蒸汽加热设备的热平衡状况、火用平衡状况的测试、计算与分析得出:该锅炉系统的热效率符合国家标准,但火用效率较低,其中固体未完全燃烧火用损失和不可逆燃烧火用损失最大;就加热设备而言,热效率都比较高,但直接用汽设备的火用效率比间接用汽设备的火用效率要低。针对这些特点,提出了相应的改进措施。此外,将蒸汽管网水力计算的结果与蒸汽管网系统的热工测试结果相比较,验证了蒸汽管网水力计算的正确性。工业锅炉节能的一个有效途径就是对锅炉的运行进行优化设计,通过锅炉的经济运行提高锅炉效率,从根本上实现节约能源的目的。根据本供热系统的特点,论文中针对工业锅炉蒸汽供热系统的运行优化问题提出了对今后工作的展望。更多还原

【Abstract】 In China, with the sustained and rapid development of economy, energy-savingbecomes the hottest topic. To our knowledge, the economical operation of heatingsystem is key to saving energy. Further more, it is found that the testing and analysis ofheating system is crucial for the economical operation.The main purpose of this thesis is to perform the thermal testing for three mainparts of heating system with the methods of energy and exergy balance, based on theheating system of Da Li tobacco plant in Yun Nan province. The results show thethermal efficiency of the industrial boiler system fits the national standard, but theexergy efficiency is smaller. At the same time, the analysis of the heating equipment andthe hydraulic calculation of steam-network are presented in our paper.It is concluded that the optical boiler-designed is an effective tool forenergy-conserving. Accordingly, the efficiency of boiler can be enhanced by itseconomical operation, in order to save energy. Meanwhile the prospects of theoperational optimization of the industrial boiler system are proposed, compared withtraditional methods.更多还原