TEST AND RESRARCH OF FLUE GAS TEMPERATURE DEVIATION AT THE FURNACE EXIT OF A 2008t/h BOILER WITH TANGENTIAL FIRING

doi:10.19666/j.rlfd.2003.06.010

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TEST AND RESRARCH OF FLUE GAS TEMPERATURE DEVIATION AT THE FURNACE EXIT OF A 2008t/h BOILER WITH TANGENTIAL FIRING

Thermal Power Generation Issue 6, Pages: 31-35(2003)

更新时间：2025-09-28

- TEST AND RESRARCH OF FLUE GAS TEMPERATURE DEVIATION AT THE FURNACE EXIT OF A 2008t/h BOILER WITH TANGENTIAL FIRING
- 作者机构：
  
  1. 北京国华电力有限责任公司
  2. 浙江大学,浙江,杭州,310027
  3. ,北京,100025
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2003.06.010
  CLC： TK227.1
- Published：2003
- 稿件说明：
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TEST AND RESRARCH OF FLUE GAS TEMPERATURE DEVIATION AT THE FURNACE EXIT OF A 2008t/h BOILER WITH TANGENTIAL FIRING[J]. Thermal Power Generation, 2003, (6): 31-35.
DOI：

TEST AND RESRARCH OF FLUE GAS TEMPERATURE DEVIATION AT THE FURNACE EXIT OF A 2008t/h BOILER WITH TANGENTIAL FIRING[J]. Thermal Power Generation, 2003, (6): 31-35. DOI： 10.19666/j.rlfd.2003.06.010.

摘要

针对某电厂 2 0 0 8t/h锅炉炉膛出口烟温偏差过大 (达 132℃ )问题

在 4个不同二次风反切角度下

对炉内空气动力特性、炉膛出口气流残余旋转和水平烟道内的烟速分布进行了冷态试验和数值模拟研究

并对影响烟温偏差的假想切圆直径、炉膛高度、燃烧器结构与摆角等因素进行了系统分析。结果表明 :合理的二次风反切角度

可有效地抑制和削弱炉膛出口的烟速和烟温偏差

且燃烧器上摆一定角度有利于减小炉膛出口的烟温偏差

Abstract

Directing against the existence of big flue gas temperature deviation （up to 130℃） at the furnace exit of 2000t/h boiler in a power plant

cold state test and numerical simulation under four different opposing tangential angles for the air dynamic behaviour in the furnace

the reaidual gas flow swirl at the furnace exit

and the gas flow velocity distribution in the horizontal flue gas duct have been carried out

and the influencing factors upon the flue gas temperature deviation

such as fictitious diameter of the tangential circle

height of the furnace

as well as structure and swing angle of the burner etc.

being analysed. The results show

a reasonable opposing tengential angle can effectively suppress and weaken the gas velocity and gas temperature deviation at the exit of furnace. And it is very helpful to decrease the said deviation by swinging upward the burner for a certain angle.

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