Analysis on whole process operation data of SCR flue gas denitration system

LIANG Junjie; ZHANG Zhanfeng; ZHOU Jian; BAO Qiang; LU Chengzheng; LI Bin; ZHU Deli

doi:10.19666/j.rlfd.201804086

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Analysis on whole process operation data of SCR flue gas denitration system

Thermal Power Generation Vol. 47, Issue 12, Pages: 93-99(2018)

更新时间：2025-05-30

- Analysis on whole process operation data of SCR flue gas denitration system
- 作者机构：
  
  1. 西安热工研究院有限公司苏州分公司
  2. 华能国际电力股份有限公司福州电厂
  3. 北方联合电力有限责任公司包头第三热电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201804086
  CLC： X701
- Published Online：28 December 2018，
  
  Published：2018
- 稿件说明：
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LIANG Junjie, ZHANG Zhanfeng, ZHOU Jian, et al. Analysis on whole process operation data of SCR flue gas denitration system[J]. Thermal Power Generation2018, 47(12): 93-99.
DOI：

LIANG Junjie, ZHANG Zhanfeng, ZHOU Jian, et al. Analysis on whole process operation data of SCR flue gas denitration system[J]. Thermal Power Generation2018, 47(12): 93-99. DOI： 10.19666/j.rlfd.201804086.

摘要

通过对多台机组脱硝系统运行数据的汇总分析

指出不同燃烧方式以及运行控制方式下

脱硝系统出口氨逃逸存在差异

导致空气预热器等下游设备硫酸氢铵(ABS)堵塞情况存在明显差异

说明从锅炉燃烧、脱硝设备、烟气流动与混合等方面进行全过程优化管理的必要性及重要性。针对脱硝系统超低排放改造后集中出现的空气预热器ABS堵塞等次生问题

建议采用全过程管理理念

从源头控制氨逃逸

提高脱硝系统运行水平。

Abstract

Through summary analysis on operation data of several units' denitration system

this paper points out that there are differences in ammonia escape at outlet of the denitration equipments in different combustion modes and operation control modes. As a result

there is obvious difference in ammonium bisulfate(ABS) plugging in downstream equipments like the air preheater

indicating it is necessary and important to optimize the whole process from the aspects of boiler combustion

denitration equipment

and flue gas flow and mixing. To solve the secondary problem like the ABS blockage in air preheater after ultra-low emission retrofitting of the denitration system

it is suggested that the whole process management concept be adopted to control ammonia escape from the source and improve the operation level of the denitration system.

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Related Institution

College of Environmental Science and Engineering, North China Electric Power University

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