Online measurement methods for flue gas flow in SCR denitrification system

YU Fengping; LI Qingyi; ZHAO Jinlong; HU Daqing

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Online measurement methods for flue gas flow in SCR denitrification system

Thermal Power Generation Issue 1, (2016)

更新时间：2025-09-28

- Online measurement methods for flue gas flow in SCR denitrification system
- 作者机构：
  
  浙江天地环保工程有限公司,浙江,杭州,310003
- 作者简介：
- 基金信息：
- DOI：
  CLC： X773
- Published Online：15 February 2016，
  
  Published：2016
- 稿件说明：
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YU Fengping, LI Qingyi, ZHAO Jinlong, et al. Online measurement methods for flue gas flow in SCR denitrification system[J]. Thermal Power Generation, 2016, (1).
DOI：

YU Fengping, LI Qingyi, ZHAO Jinlong, et al. Online measurement methods for flue gas flow in SCR denitrification system[J]. Thermal Power Generation, 2016, (1). DOI：

摘要

在燃煤锅炉选择性催化还原(SCR)烟气脱硝工艺中

烟气流量测量的准确性对供氨量的控制具有重要影响。由于脱硝烟道截面大、直段较短、烟气含尘量较高

使得烟气流量测量难度较大。本文采用多点阵列式差压流量在线测量的方法

对某330 MW机组锅炉脱硝烟气流量进行在现测试，将理论计算和在线测量与实际测量数据进行对比得出

理论计算值与实际测量值偏差较大，而在线测量值与实际测量值较吻合，在330 MW机组负荷下在线测量，偏差为5.36%。多点阵列式差压流量在线测量更适用于SCR脱硝烟气流量测量

能够使脱硝系统控制和监测更为准确。

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