Power plant boiler SCR denitration bypass flue numerical simulation and application

WANG Dundun; LIU Feng; CHEN Xun; LV Dangzhen; YANG Yi

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Power plant boiler SCR denitration bypass flue numerical simulation and application

更新时间：2025-11-18

- Power plant boiler SCR denitration bypass flue numerical simulation and application
- Vol. 36, Issue 5, Pages: 51-53(2016)
- 作者机构：
  
  1. 国网湖南省电力公司电力科学研究院
  2. 长安益阳发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2016
- 稿件说明：
移动端阅览
[1]王敦敦,刘峰,陈珣,吕当振,杨益.电站锅炉SCR脱硝旁路烟道改造数值模拟及应用[J].湖南电力,2016,36(05):51-53.

WANG Dundun, LIU Feng, CHEN Xun, et al. Power plant boiler SCR denitration bypass flue numerical simulation and application[J]. 2016, 36(5): 51-53.
[1]王敦敦,刘峰,陈珣,吕当振,杨益.电站锅炉SCR脱硝旁路烟道改造数值模拟及应用[J].湖南电力,2016,36(05):51-53. DOI：

WANG Dundun, LIU Feng, CHEN Xun, et al. Power plant boiler SCR denitration bypass flue numerical simulation and application[J]. 2016, 36(5): 51-53. DOI：

摘要

某电厂在机组低负荷运行时

SCR脱硝装置入口烟温低于脱硝反应最低温度

导致SCR无法正常运行。采取了在锅炉转向室后抽出高温烟气

与低温烟气进行混合

提高SCR入口烟气温度的技术改造措施。通过数值模拟及试验

研究了旁路烟道布置方式对混合后烟气温度分布的影响以及改造前后锅炉效率、烟温分布变化的情况。

Abstract

A power plant SCR entrance gas temperature was lower than the safe reaction temperature in low load condition

which led to the abnormal operation of the SCR. Through technical renovation

high temperature flue gas was removed from the boiler steering room

which mixed with low temperature flue gas to increase the SCR flue gas temperature of entrance. This paper studies SCR the bypass flue arrangement influence on the distribution of mixed flue gas temperature through numerical simulation. The boiler efficiency and flue gas temperature distribution changes are analyzed through the tests.

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