This paper introduces the improvement for preventing scale and clog of limestone-gypsum wet flue-gas desulfurization system s GGH in phase I of Guohua Sanhe Power Generation Co.

• 介绍了国华三河发电厂一期石灰石-石膏湿法脱硫系统GGH防结垢堵塞改造及改造后的运行效果和出现的问题。