湿法烟气脱硫单塔改造方案
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摘要
为了更好地完成湿法烟气脱硫改造项目,分析了脱硫改造项目与新建项目的差异,着重讨论了单塔改造这一分类。以某2×600 MW机组为例,列举了几个关键部位改造方案的利弊,包括塔体和浆液循环管道加高时塔壁切割位置的选定、脱硫塔烟气入口的转向、浆液循环泵的改造、脱硫塔管口的改造。择选出了工艺合理性、造价经济性和施工难易程度等方面综合评价最优的方案,工程顺利建成并通过验收,100%THA工况下脱硫率达到了99.3%,为类似项目提供了参考。
To better complete a WFGD reconstruction project, the differents between reconstruction projects and new projects were analyzed, especially in single-tower reconstructions. Several programmes of a 2×600 MW unit reconstruction project were listed, including cutting-position selections of tower or pipings, flue-gas entrance direction change of a desulphurizing tower, reconstruction of slurry circulating pumps, tec. Optimal programmes are selected, according to technological requirements, economical efficiency and construction difficulty. Project is successfully completed and desulfurization efficiency reaches 99.3% at 100%THA condition,which provides a reference for similar projects.
To better complete a WFGD reconstruction project, the differents between reconstruction projects and new projects were analyzed, especially in single-tower reconstructions. Several programmes of a 2×600 MW unit reconstruction project were listed, including cutting-position selections of tower or pipings, flue-gas entrance direction change of a desulphurizing tower, reconstruction of slurry circulating pumps, tec. Optimal programmes are selected, according to technological requirements, economical efficiency and construction difficulty. Project is successfully completed and desulfurization efficiency reaches 99.3% at 100%THA condition,which provides a reference for similar projects.
引文
[1]国发[2016]74号.“十三五”节能减排综合工作方案[S].中国:国务院,2016.
[2]Meierer,Matthias.Operation and optimization of flue gas desulfurization systems in coal-fired power plants[J].Power plat Chemstry,1999,1(1):12-17.
[3]魏玉洁,李平.湿法烟气脱硫技术现状与改进创新[J].山东化工,2017,46(21):190-193.
[4]郎林茂,张子敬.国内外脱硫技术现状与对比[J].内蒙古科技与经济,2015(10):66-68.
[5]李兴华,何育东.燃煤火电机组SO2超低排放改造方案研究[J].中国电力,2015,48(10):148-161.
[6]李桂琼,苏娟,刘俊,等.浅析湿法脱硫增效改造技术的工程应用[J].广东化工,2016,43(8):94-95.
[7]王志刚.脱硫吸收塔改造中应注意的几个问题[J].科技资讯,2013(23):119-120.
[8]周强,肖贵林.600 MW高硫煤机组脱硫单塔增容改造技术的应用[J].华电技术,2016,38(2):68-71.
[9]折中明,王彩霞,赵安民,等.燃煤机组对SO2排放优化改造[J].节能技术,2018,36(1):68-72.
[10]温卿云,谢倩,杨西茜,等.燃煤电厂脱硫除尘超低排放改造措施探讨[J].环保科技,2017,23(5):6-10.
[11]柳杨.简述脱硫系统增容改造的几种方式[J].锅炉制造,2012(1):63-65.
[12]姚喜亮,潘长龙,李国涛.深度脱硫脱尘除雾组合塔内件用于燃煤电厂脱硫塔系统改造的运行效果分析[J].化工设计,2017,27(5):47-50.
[2]Meierer,Matthias.Operation and optimization of flue gas desulfurization systems in coal-fired power plants[J].Power plat Chemstry,1999,1(1):12-17.
[3]魏玉洁,李平.湿法烟气脱硫技术现状与改进创新[J].山东化工,2017,46(21):190-193.
[4]郎林茂,张子敬.国内外脱硫技术现状与对比[J].内蒙古科技与经济,2015(10):66-68.
[5]李兴华,何育东.燃煤火电机组SO2超低排放改造方案研究[J].中国电力,2015,48(10):148-161.
[6]李桂琼,苏娟,刘俊,等.浅析湿法脱硫增效改造技术的工程应用[J].广东化工,2016,43(8):94-95.
[7]王志刚.脱硫吸收塔改造中应注意的几个问题[J].科技资讯,2013(23):119-120.
[8]周强,肖贵林.600 MW高硫煤机组脱硫单塔增容改造技术的应用[J].华电技术,2016,38(2):68-71.
[9]折中明,王彩霞,赵安民,等.燃煤机组对SO2排放优化改造[J].节能技术,2018,36(1):68-72.
[10]温卿云,谢倩,杨西茜,等.燃煤电厂脱硫除尘超低排放改造措施探讨[J].环保科技,2017,23(5):6-10.
[11]柳杨.简述脱硫系统增容改造的几种方式[J].锅炉制造,2012(1):63-65.
[12]姚喜亮,潘长龙,李国涛.深度脱硫脱尘除雾组合塔内件用于燃煤电厂脱硫塔系统改造的运行效果分析[J].化工设计,2017,27(5):47-50.