GAO Peng1, GAO Ming2, ZHANG Jianwen3, et al. Experimental study on low NOx combustion transformation on a 600 MW unit boiler[J]. Thermal power generation, 2013, 42(4): 43-46.
GAO Peng1, GAO Ming2, ZHANG Jianwen3, et al. Experimental study on low NOx combustion transformation on a 600 MW unit boiler[J]. Thermal power generation, 2013, 42(4): 43-46.DOI:
600MW机组锅炉低氮燃烧器改造试验研究
摘要
针对台山发电公司600MW机组锅炉氮氧化物排放高的问题
提出了双分段高效复合低氮燃烧器的改造方案
并在3MW热态试验台上进行了试验研究。结果表明
采用两段SOFA运行方式比一段SOFA运行方式NOx排放值更低
与不采用空气分级的燃烧工况相比
NOx排放可以降低60%左右
而CO和飞灰含碳量的数值变化不大。目前
该公司600MW机组锅炉在燃用80%神华煤+20%石炭煤时
NOx排放值约为450mg/m3
锅炉低NOx改造后
预计NOx排放值将小于180mg/m3。
Abstract
The NOx emitted from the 600MW unit boiler of Taishan Power Plant had a high concentration.Thus
the transformation scheme for double-segment compound low NOx burner with high efficiency was proposed
and the experiment was performed on a 3 MW thermal test-bed.The results showed that
the NOx emission was lower in two-stage SOFA operation mode than in single stage SOFA operation mode.Compared with the combustion condition with no air staging
the NOx emission can be reduced by about 60%
but the concentration of CO and carbon content in fly ash had no obvious change.At present
the 600 MW unit boiler in Taishan Power Plant uses Shenhua coal(80%) and Shitan coal(20%) as the fuel
and the NOx emission is about 450 mg/m3.After the low NOx combustion transformation