锅炉技术2024，Vol.55Issue(4)：45-50,6.
600MW燃用褐煤新型墙式切圆锅炉燃烧性能分析
Combustion Performance Analysis of a New Type 600 MW Lignite-Fired Wall Tangential Boiler
束继伟 1金宏达 1孙浩 2刘恒宇 2崔凯 3李力 1孟繁兵 1刘伟 1王欣1
作者信息
- 1. 国网黑龙江省电力有限公司电力科学研究院,黑龙江 哈尔滨 150030
- 2. 哈尔滨锅炉厂有限责任公司,黑龙江 哈尔滨 150046
- 3. 哈尔滨高联伟业电力成套设备有限公司,黑龙江 哈尔滨 150060
- 折叠
摘要
Abstract
This paper aims to investigate the causes of problems such as slagging on water walls and tube failure due to overheating in the actual operation of a 600 MW supercritical lig-nite-fired wall-tangential boiler.The author conducts cold and hot-state numerical simula-tions and validates the simulation results through on-site parameter testing and system opti-mization adjustments.The results show persistent differences in velocity and temperature imbalance between the left and right sides of the furnace outlet.Feeding and cutting off SO-FA significantly affects the air velocity distribution,thus effectively reducing residual swirl.Computer numerical simulations and on-site parameter testing reveal the existence of a large-diameter and stable rotating"high-temperature fire ring"inside the furnace.It facilitates the ignition of high-moisture lignite and improves combustion stability,but the high primary air ratio along with the large diameter cause slagging and local overheating,thus imperiling the safe and stable operation of the unit.The results and methods of this paper provide a refer-ence for optimal design and operation of similar boilers and offer new ideas for the efficient utilization of high-moisture lignite,which has low heat value and tends to cause slagging.关键词
墙式切圆/数值模拟/褐煤/燃烧性能/超超临界Key words
wall tangential circle/numerical simulation/lignite/combustion perform-ance/ultra supercritical分类
能源与动力引用本文复制引用
束继伟,金宏达,孙浩,刘恒宇,崔凯,李力,孟繁兵,刘伟,王欣..600MW燃用褐煤新型墙式切圆锅炉燃烧性能分析[J].锅炉技术,2024,55(4):45-50,6.
