对单筒式烟囱湿法脱硫改造的建议

Recommendations on Reconstruct of Wet Desulphurization in Single Tube Chimney

目前火力发电厂单筒式烟囱改造后用于排放湿法脱硫不上GGH烟气工况,出现了很普遍且很严重腐蚀现象。本文通过统计烟囱检测出现的问题,分析了出现腐蚀的原因;总结了多个烟囱改造工程的经验,提出重点检测的部位和单筒烟囱防腐改造的建议。

At present, the serious corrosion appear generally in single tube chimneys of power plants without GGH using wet desulphurization. The paper analyses the reasons of the corrosion of the chimney by the statistic of the problems detected： the paper summarizes the experience of modification work of some chimneys, indicates the parts need emphasis detection and gives some suggestion about the anticorrosion reform.