摘要
运用分析法对600MW超临界W型火焰电站锅炉运行过程的能效进行分析.结果表明:锅炉的损失的主要来源是内部损耗,其中燃烧不可逆过程损失和传热不可逆过程损失是锅炉最大的两项损失,分别占23.34%和21.68%.锅炉总体的效率随负荷的降低而降低,低负荷运行是不经济的,提高水冷壁处传递的能力对提高锅炉总体效率很有帮助.当环境温度较低时,锅炉总体效率和各级受热面的效率都较高.
The exergy analysis method is employed to analyze the exergy utilization of 600 MW supercritical W - Type flame power station boiler in actual operation process. It is shown through the results that the main source of the boiler exergy loss is internal loss, including burning irreversible process exergy loss and heat transfer irreversible process exergy loss, which are the two largest exergy losses of boiler, accounting for 23.34% and 21.68% , respectively. The overall exergy efficiency of the boiler decreases along with the load, therefore, low load operation is not economical. Improving the ability to transfer exergy in the water wall place helps to improve the overall exergy efficiency. When the environmental temperature is lower, the exergy efficiency of boiler and heating surface at all levels is higher.
出处
《昆明理工大学学报（自然科学版）》
CAS
2016年第3期85-90,共6页
Journal of Kunming University of Science and Technology(Natural Science)
基金
国家自然科学基金项目(51466005)
校人培基金项目(KKZ3201352011)
