上海节能
探究电站锅炉排烟温度偏高的原因
及控制措施尤坤坤杨燕玲
1中国天楹股份有限公司华电国际邹县发电厂
2信息产业电子第十一设计研究院科技工程股份公司上海分公司
摘要：锅炉效率与其各项损失密切相关，而其中锅炉排烟热损失影响因素最大，约为5~8%，合理降低排烟温度可以有效提高锅炉效率，降低供电煤耗。结合某厂不同容量锅炉的实际运行特点，从多角度分析造成锅炉排烟温度偏高的主要原因，并提出相应的可行性优化方案及建设。
关键字：排烟温度；锅炉效率；过量空气系数：受热面积灰 D0l:10.13770/j.cnki.issn2095-705x.2017.02.011
StudyonCausesandControlMeasuresofFlueGasHigl
Temperature at Power Plant Boiler YouKunkun',YangYanling
1.China TIANYING Inc. Huadian Power International Zou County Power Plant
2.Information Industry Electronic 1lth Design and Research Institute Science and Technology Engineering Co.,Ltd Shanghai Branch
Abstract: Boiler efficiency is related to all kinds of losses and flue gas heat loss is the most influent factor, which is about 5 to 8%.The author suggests we should reduce flue gas temperature reasonabl to improve boiler efficiency and decrease coal consumption for power generation. Combined with practical operation characteristics of different capacity boilers at some power plant, the author analyzes main causes of flue gas high temperature from multi viewpoints and puts forward relative feasible optimization plan and suggestions.
Key words: Flue Gas Temperature,Boiler Efficiency,Excess Air Coefficient,Ash on Heating Surfaces
近年来随着环保经济概念的深入发展，火电厂机组运行问题不断得到重视，十二五规划明确指出落实节约优先战略，大幅度提高能源利用效率，火电厂作为我国工业耗能大户，对其有效实施节能，可实现能源节约，推动火力发电行业可持
[作者简介]
尤坤坤（1988.），男，硕士研究生，从事锅炉检修工作，
续发展，
电站锅炉的高效运行受多种因素影响，运用反平衡法计算锅炉热效率时可知锅炉损失由机械不完全燃烧损失，散热损失，化学不完全燃烧损失，灰渣物理损失和排烟损失五部分组成，而其中排烟
2017年第02期
SHANGHAI ENERGY CONSERVATION
105
节能技术与产品 ENERGY CONSERVATION TECHNOLOGIES AND PRODUCTS