基于烟气协同治理的1000 MW机组超低排放改造实践
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摘要
针对我国燃煤电厂现有烟气治理技术路线存在的主要问题,基于协同治理的理念,对华能海门电厂1 000 MW机组进行超低排放改造。综合考虑脱硝系统、除尘系统和脱硫系统之间的协同关系,确定整体改造方案,主要包括烟气余热利用系统、脱硝设备、除尘器、脱硫设备的改造,以及引风机位置和烟气管道的优化。改造后主要污染物排放质量浓度平均值远低于国家要求的环保指标,取得了良好的社会效益和经济效益。
Aiming at the existing problems in technology roadmap of flue gas management in domestic coalfired power plants, ultra-supercritical emission retrofit of 1 000 MW units in Huaneng Haimen Power Plant was conducted. The coordination of denitration system, dedusting system and desulphurization system is comprehensively considered to determine an overall scheme for retrofit of waste heat utilization system, denitration device, dust precipitator and desulphurization device as well as optimization on the location of induced draft fan and flue gas pipe. The mean value of the mass concentration of main pollutants is far lower than the national environmental protection index, and therefore favourable social benefit and economic benefit are obtained.
Aiming at the existing problems in technology roadmap of flue gas management in domestic coalfired power plants, ultra-supercritical emission retrofit of 1 000 MW units in Huaneng Haimen Power Plant was conducted. The coordination of denitration system, dedusting system and desulphurization system is comprehensively considered to determine an overall scheme for retrofit of waste heat utilization system, denitration device, dust precipitator and desulphurization device as well as optimization on the location of induced draft fan and flue gas pipe. The mean value of the mass concentration of main pollutants is far lower than the national environmental protection index, and therefore favourable social benefit and economic benefit are obtained.
引文
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[13]刘锋,金晶.1 000 MW超超临界机组SCR脱硝喷氨控制策略的优化与改进[J].浙江电力,2018,37(3):68-72.
[2]李海峰.燃煤电厂锅炉超净排放技术改造探讨[J].科技展望,2017(1):141.
[3]苗博.燃煤电厂锅炉超净排放技术改造研究[J].山西农经,2016(12):73.
[4]王小明,颜俭,薜建明,等.我国燃煤电厂烟气脱硫示范工程-燃煤电厂烟气脱硫技术与经验专述之四[J].电力环境保护,2000,16(4):39-46.
[5]郦建国,郦祝海,李卫东,等.燃煤电厂烟气协同治理技术路线研究[J].中国环保产业,2015(5):52-56.
[6]李泉,尹峰,罗志浩.超临界机组脱硝系统模型预测控制研究[J].浙江电力,2016,35(11):34-36.
[7]朱志飞,饶苏波,陈奎续.超净电袋复合除尘器提效改造的要点分析[J].节能与环保,2016(7):64-66.
[8]翁建明.1 000 MW机组超低排放改造中厂用电的优化分析[J].浙江电力,2016,35(3):53-56.
[9]李志远.火电厂超净排放形式下的CEMS改造研究[J].绿色科技,2016(4):97-98.
[10]肖丽,王刚,金礼方.600 MW级火电机组超低排放改造后的运行成效分析[J].浙江电力,2016,35(7):37-40.
[11]何进崇.循环流化床锅炉超净排放烟气脱硫改造技术探讨[J].企业技术开发,2016(3):170-171.
[12]翟德双.燃煤电厂锅炉超净排放技术改造探讨[J].华东电力,2014,42(10):2218-2221.
[13]刘锋,金晶.1 000 MW超超临界机组SCR脱硝喷氨控制策略的优化与改进[J].浙江电力,2018,37(3):68-72.