国产600MW超临界燃煤发电机组“近零排放”改造

Domestic 600 MW supercritical coal-fired unit “near zero emission”reconstruction

为实现机组污染物"近零排放"的目标,广东珠海金湾发电有限公司#3,#4机组进行了环保改造。介绍了脱硫系统扩容升级、新增湿式电除尘器、省煤器分级、脱硝系统加装催化剂、引增合一等改造内容,改造后的性能测试结果表明,烟尘、SO_2、NO_x排放质量浓度优于燃气机组排放标准,实现了"近零排放"的目标。

To realize 'near zero emission',Guangdong Zhuhai Jinwan Power Plant Company Limited 's No. 3 and No. 4 unit took reconstruction. This paper introduced the reconstruction of desulfurization system,adding wet ESP( electrical precipitator),classification of economizer,denitration system adding catalyst,combination of duct fan and booster fan. After reconstruction,the emission concentration of dust,SO_2 and NO_x is lower than gas turbine unit,'near zero'emission was realized.