广东电力2017，Vol.30Issue(5)：15-20,6.DOI:10.3969/gddl/gddl2017/1705/170504.htm
复合有机酸在超超临界运行炉化学清洗中的应用
Application of Glycolic Acid+Formic Acid in Chemical Cleaning for Ultra-supercritical Operating Boiler
查方林 1刘凯 1袁新民 1吴俊杰 1徐松 1王凌1
作者信息
- 1. 国网湖南省电力公司电力科学研究院, 湖南 长沙 410007
- 折叠
摘要
Abstract
On the basis of engineering requirement for chemical cleaning of the power plant ultra-supercritical operating boiler, and combining structure characteristics of the boiler and component analysis on the scaling layer, glycolic acid+formic acid was preliminarily picked out as cleaning medium from common organic acid cleaning agents. Laboratory pilot test verified cleaning effect of glycolic acid+formic acid and the concentration of hydrogen peroxide in passivation process was determined. This paper describes execution process of the engineering and introduces key technique measures. The chemical cleaning effect is excellent and each index is superior to requirements of guideline for chemical cleaning of fossil plant. The results show that descaling rate is 98.7%, corrosion rate is 1.428 g/m2h, in addition, chemical oxygen demand, pH value and suspended matter index of cleaning wastewater are all up to national emission standards after treatment.关键词
化学清洗/羟基乙酸/超超临界/腐蚀速率/除垢率Key words
chemical cleaning/glycolic acid/ultra-supercritical/corrosion rate/descaling rate分类
能源科技引用本文复制引用
查方林,刘凯,袁新民,吴俊杰,徐松,王凌..复合有机酸在超超临界运行炉化学清洗中的应用[J].广东电力,2017,30(5):15-20,6.
