Effect of center wind on combustion characteristics of HT-NR3 swirl burner

XIE Bing; ZHANG Guangcai

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Effect of center wind on combustion characteristics of HT-NR3 swirl burner

Thermal Power Generation Vol. 44, Issue 10, Pages: 35-40(2015)

更新时间：2025-09-28

- Effect of center wind on combustion characteristics of HT-NR3 swirl burner
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2015
- 稿件说明：
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XIE Bing, ZHANG Guangcai. Effect of center wind on combustion characteristics of HT-NR3 swirl burner[J]. Thermal Power Generation, 2015, 44(10): 35-40.
DOI：

XIE Bing, ZHANG Guangcai. Effect of center wind on combustion characteristics of HT-NR3 swirl burner[J]. Thermal Power Generation, 2015, 44(10): 35-40. DOI：

摘要

针对装有HT-NR3旋流燃烧器的锅炉在运行过程中存在炉膛出口CO质量浓度过高、水冷壁高温腐蚀和燃烧器喷口烧损等问题

试验研究了不同导流扩口和不同煤质下中心风率变化对燃烧器的影响。结果表明:当燃用高挥发分煤时

采用35°导流扩口

中心风率控制在4.3%左右

可以在抑制NOx排放的同时有效降低CO的生成;当燃用低挥发分煤时

采用40°导流扩口

控制中心风率低于3.0%

可以在促进燃料反应的同时兼顾抑制NOx和CO的排放。

Abstract

Several problems occurs during operation of boilers equipped with HT-NR3 swirl burners

such as the mass concentration of CO at furnace outlet of is too high

the high temperature corrosion occurs on water wall and the burners nozzles are burnout.Thus

the effects of central air ratio on burner with different diversion flaring angles were investigated

under conditions burning different kinds of coals.The results show that

when the high-volatile coal was burned

with diversion flaring angle of 35°

the center air rate was controlled at about 4.3%

the CO formation was effectively reduced on the premise of inhibiting NOx generation.When the low-volatile coal was burned

with diversion flaring angle of 40°

the central air ratio can be kept below 3.0%

the combustion reaction can be improved while inhibiting the NOxand CO emissions.

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