Reconstruction scheme for denitrification of boilers equipped with tube type air preheater

DUAN Yuyan

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Reconstruction scheme for denitrification of boilers equipped with tube type air preheater

更新时间：2025-09-28

- Reconstruction scheme for denitrification of boilers equipped with tube type air preheater
- Thermal Power Generation Vol. 42, Issue 11, Pages: 167-168(2013)
- 作者机构：
  
  广东省电力设计研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.34
- Published：2013
- 稿件说明：
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DUAN Yuyan. Reconstruction scheme for denitrification of boilers equipped with tube type air preheater[J]. Thermal power generation, 2013, 42(11): 167-168.
DOI：

DUAN Yuyan. Reconstruction scheme for denitrification of boilers equipped with tube type air preheater[J]. Thermal power generation, 2013, 42(11): 167-168. DOI：

摘要

研究采用管式空气预热器锅炉的脱硝改造方案

提出将空气预热器整体更换和保留原空气预热器而改造省煤器2种方案

并对这2种方案进行了技术和经济比较。结果表明

方案2总体投资、改造工期和施工难度等均大于方案1

但运行安全性低。若锅炉低氮燃烧器改造成功

同时能较好地控制氨逃逸率

且不燃用高硫煤的情况下

可选择方案2进行脱硝改造。

Abstract

The retrofit scheme for denitrification of boilers equipped with tube type air preheater was investigated.Two improved schemes(replacing the whole air preheater

keeping the air preheater but retrofitting the economizer)were proposed.Moreover

comparison on technology and economy of the two schemes was conducted.The results showed that

all of the total investment

transformation period and degree of construction difficulty but the operation safety of schemeⅠwere superior to that of schemeⅡ.If the retrofit on low NOx burner of boiler firing coal with low sulfur content was success

and the ammonia escape rate can be well controlled

the schemeⅡ was also feasible.

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