摘要
为了满足日益严格的环保要求并降低工程设备投资、减少运行维护费用,以华电国际十里泉发电厂“上大压小”2×660 MW超超临界抽凝供热机组为例,对新型烟气超低排放技术的研究与应用进行了探索。机组取消了产生废水多、维护量大、耗电高的湿式除尘器,采取了全负荷选择性催化还原(SCR)脱硝+低低温静电除尘器+高效脱硫协同除尘FGDPlus+管束式烟气换热器(MGGH)的技术方案。机组连续运行2年多后,烟气排放一直满足超低排放要求,完全符合国家严格的环保要求,可为同类型机组建设或炉后超低排放改造提供参考。
In order to meet increasingly stringent environmental protection requirements,reduce investment in engineering equipment and maintenance costs,taking the“developing large units and suppressing small ones”2×660 MW ultra-supercritical condensing heating units in Huadian International Shiliquan Power Plant as an example,the application of gas flue ultra-low emission technology was studied.The units removed the wet separator that was of great waste water production,maintenance and power consumption,and adopted a full-load technical solution which was selective catalytic reduction(SCR)denitration+low-low temperature electrostatic precipitator+high-efficiency desulfurization collaborative dust removal FGDPlus+media gas-gas heater(MGGH).After more than 2-year operation,the flue gas emission has always met the ultra-low emission and strict national environmental protection requirements,which can provide a reference for the construction and ultra-low emission retrofit of the same-type unit.
作者
张建通
王佃昌
王继伦
ZHANG Jiantong;WANG Dianchang;WANG Jilun(Huadian International Shandong Information Management Company Limited,Jinan 250014,China)
出处
《华电技术》
CAS
2019年第12期16-19,24,共5页
HUADIAN TECHNOLOGY
关键词
烟气
超低排放
低低温静电除尘器
高效脱硫协同除尘
FGDPlus
低低温静电除尘器
湿式除尘器
flue gas
ultra-low emission
low-low temperature electrostatic precipitator
high-efficiency desulfurization cooperative dust removal
FGDPlus
low-low temperature electrostatic precipitator
wet separator
