Optimization for Ammonia Injection of 300 MW Unit SCR Denitration System

CHE Yao; ZHANG Hong; TAO Li; ZHOU Yanming

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Optimization for Ammonia Injection of 300 MW Unit SCR Denitration System

更新时间：2025-11-18

- Optimization for Ammonia Injection of 300 MW Unit SCR Denitration System
- Vol. 37, Issue 4, Pages: 69-72(2017)
- 作者机构：
  
  国网湖南省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： X773
- Published：2017
- 稿件说明：
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[1]车垚,张鸿,陶莉,周艳明.300 MW机组SCR脱硝系统喷氨优化调整研究[J].湖南电力,2017,37(04):69-72.

CHE Yao, ZHANG Hong, TAO Li, et al. Optimization for Ammonia Injection of 300 MW Unit SCR Denitration System[J]. 2017, 37(4): 69-72.
[1]车垚,张鸿,陶莉,周艳明.300 MW机组SCR脱硝系统喷氨优化调整研究[J].湖南电力,2017,37(04):69-72. DOI：

CHE Yao, ZHANG Hong, TAO Li, et al. Optimization for Ammonia Injection of 300 MW Unit SCR Denitration System[J]. 2017, 37(4): 69-72. DOI：

摘要

针对300 MW燃煤火电机组SCR脱硝系统出口NO

分布均匀性差

总排口与SCR出口NO

浓度偏差大等问题

对SCR系统喷氨格栅进行优化调整。调整结果表明

A/B两侧出口NO

浓度分布相对标准偏差从61.56%和69.57%下降至15.34%和21.84%。因此

喷氨优化对格栅式喷氨混合结构具有良好的调整效果

进而有效降低SCR氨逃逸水平

从而保证尾端设备的长期稳定运行。

Abstract

In this paper

SCR system is optimized and adjusted according to the problems of the low uniformity of outlet NO

concentrations and NO

large concentration deviation between the total discharge outlet and SCR outlet in 300 MW coal-fired power plant. The result shows that the relative standard deviations of NO

concentration distributions on both sides of A/B is reduced from 61. 56% to 15. 34% and from 69. 57% to 21. 84% respectively. Therefore

this optimization method has a good effect on the grid-spray ammonia mixing structure

thus effectively reducing SCR ammonia escape level

so as to ensure the long-term stable operation of the subsequent equipments.

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Related Author

WEN Zhi-yong

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TAO Li1

CHEN Jin-sheng2

FENG Yong3

ZHOU Nian-guang1

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LI Guo-yong

Related Institution

Guangdong Electric Power Test & Research Institute

广东省电力试验研究所广东广州510600

Hunan Electric Power Corporation Research Institute

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Hunan University

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