Influence of LNASB swirl burner structure on NO<sub>x</sub> emission and combustion performance

ZHOU Ping; QIN Jianzhu; HUANG Junxie; LIU Wei

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Influence of LNASB swirl burner structure on NO_x emission and combustion performance

Thermal Power Generation Vol. 44, Issue 4, Pages: 82-87(2015)

更新时间：2025-09-28

- Influence of LNASB swirl burner structure on NO_x emission and combustion performance
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能东方电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.23
- Published：2015
- 稿件说明：
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ZHOU Ping, QIN Jianzhu, HUANG Junxie, et al. Influence of LNASB swirl burner structure on NO_x emission and combustion performance[J]. Thermal Power Generation, 2015, 44(4): 82-87.
DOI：

ZHOU Ping, QIN Jianzhu, HUANG Junxie, et al. Influence of LNASB swirl burner structure on NO_x emission and combustion performance[J]. Thermal Power Generation, 2015, 44(4): 82-87. DOI：

摘要

某厂LNASB型旋流燃烧器喷口的结构变化对锅炉燃烧性能及NOx排放影响较大

可使NOx排放降低150mg/m3左右

但会带来尾部CO浓度增加及燃烧高挥发分煤种时二次风喷口容易结渣及烧损变形问题。分析认为

在保证一、二次风速设计的基础上

采用扩锥型一、二次风喷口并将局部浓缩的煤粉浓缩器改为内浓外淡船型煤粉浓缩器

在进一步降低NOx排放的同时

也可缓解二次风喷口的结渣及烧损变形问题。

Abstract

Changes in LNASB swirl burner's structure in a power plant can decrease the NOxemission by150mg/m3.However

the CO concentration in the tail duct increased and slagging and damage deformation easily occurred round the secondary air nozzle when high volatile coals were fired.Analysis shows that

on the basis of ensuring the primary and secondary air speed design

applying the cone type nozzle and replacing the local concentrator into internal consistency and external light pulverized coal concentrator can reduce NOxemissions and also relieve the slagging and damage deformation problems.

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Influence of LNASB swirl burner structure on NOx emission and combustion performance

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摘要

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Influence of LNASB swirl burner structure on NO_x emission and combustion performance