循环流化床锅炉NO_x的影响因素分析
刘宏禹¹，索晓璐²
（1. 晋控电力同达热电山西公司，山西 大同 037000；2. 晋控煤业集团塔山煤矿，山西 大同 037000）
摘要： 针对晋控电力同达热电山西公司2×330 MW 循环流化床锅炉运行工况，通过调整过量空气系数、旋风分离器入
口温度、返料风压，分析以上因素变化过程中NO_x排放质量浓度的变化趋势，为低负荷工况下提供最佳运行参数，在控
制NO_x排放质量浓度的情况下，最大限度减少氨水用量，以降低脱硝产物对环境、经济的影响。
关键词： 循环流化床；过量空气系数；温度；返料风压
中图分类号： TK227.1 文献标识码： A 文章编号： 2095-0802-(2021)12-0143-02
Analysis of Influencing Factors of NO_x in Circulating Fluidized Bed Boilers
LIU Hongyu1, SUO Xiaolu2
(1. Jinneng Holding Electric Power Tongda Thermal Power Shanxi Company, Datong 037000, Shanxi, China; 2. Tashan Coal
Mine, Jinneng Holding Coal Industry Group, Datong 037000, Shanxi, China)
Abstract: According to the operating conditions of the 2×330 MW circulating fluidized bed boiler of Jinneng Holding Electric
Power Tongda Thermal Power Shanxi Company, by adjusting the excess air coefficient, cyclone inlet temperature and return air
pressure, this paper analyzed the change trend of NO_x concentration during the change of the above factors, in order to provide the
best operating parameters, and minimize the amount of ammonia under the condition of controlling NO_x emission mass
concentration, so as to reduce the impact of denitration products on environment and economy.

Key words: circulating fluidized bed; excess air coefficient; temperature; return air pressure