华电技术 ›› 2016, Vol. 38 ›› Issue (7): 70-73.

• 节能与环保 • 上一篇    下一篇

CFB锅炉SNCR烟气脱硝系统运行分析及改进

  

  1. 华电电力科学研究院,杭州〓310030
  • 出版日期:2016-07-25

Operation analysis of SNCR flue gas denitrification system of CFB boiler and its improvement

  1. Huadian Electric Power Research Institute, Hangzhou 310030, China
  • Published:2016-07-25

摘要:

摘要:循环流化床锅炉选择性非催化还原(SNCR)烟气脱硝,在低负荷工况下存在脱硝效率偏低、氨逃逸率高等问题。结合工程实践,分析了循环流化床机组采用SNCR脱硝技术在不同工况下的运行情况,针对SNCR脱硝系统运行中存在的问题提出了相应的改进建议,为电厂安全、经济、稳定运行提供依据。

关键词:

Abstract:

Abstract:For the selective noncatalytic reduction (SNCR) flue gas denitrification system of circulating fluidized bed (CFB) boiler, some problems are existed when it is operating under low load condition, such as low denitration efficiency, high escape rate of ammonia, etc. Combining the engineering practice, this paper analyzed the operating conditions of circulating fluidized bed units that adopting the SNCR denitration technology under different working conditions, and proposed corresponding improvement suggestions for the existed problems in the operation of SNCR denitration system, which provided a basis for the safety, economic and stable operation of power plant.

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