热力发电Issue(8)：120-124,130,6.DOI:10.3969/j.issn.1002-3364.2014.08.120
600 MW机组锅炉低N Ox 燃烧系统改造数值模拟
Numerical simulation on low NOx combustion system retrofitting for a 600 MW unit boiler
王颖聪 1卢坤2
作者信息
- 1. 神华国华电力公司，北京 100025
- 2. 内蒙古国华呼仑贝尔发电有限公司，内蒙古 呼伦贝尔 021025
- 折叠
摘要
Abstract
To solve the problem of high NOx emission in a 600 MW subcritical controlled circulation boiler, compound air staging technology retrofit schemes with vertical air staging along furnace height direction and horizontal air staging in main combustion zone were proposed.The numerical simulation software Flu-ent was employed to investigate the influence of SOFA elevation and spacing on combustion temperature, CO concentration and NOx emission.The results show that,the simulation results can well reflect the actu-al combustion situation.In the scheme of air staging combustion,the temperature of primary combustion zone reduced,while that at the furnace outlet increased.The CO concentration at the furnace outlet rose and the NOx emission decreased significantly.The results of comprehensive comparison and analysis on the NOx emission,furnace outlet gas temperature and boiler efficiency proved the C2 condition was be the opti-mum arrangement.关键词
亚临界/600 MW机组/锅炉/低NOx 燃烧/复合空气分级/数值模拟Key words
subcritical boiler/air staging/NOx/SOFA/gas temperature/boiler efficiency/numerical sim-ulation分类
能源科技引用本文复制引用
王颖聪,卢坤..600 MW机组锅炉低N Ox 燃烧系统改造数值模拟[J].热力发电,2014,(8):120-124,130,6.
