Analysis and countermeasure of high temperature corrosion on water wall of coal-fired power plant boiler

被引：0
|
作者：
Yu Y. [1 ]
Fu X. [1 ]
Dai Y. [2 ]
Rong J. [1 ]
Gao Z. [1 ]
Cai B. [1 ]
Hu J. [3 ]
机构：
[1] Inner Mongolia Electric Power Research Institute, Inner Mongolia, Hohhot
[2] Inner Mongolia Vocational College of Chemical Engineering, Inner Mongolia, Hohhot
[3] Inner Mongolia University of Technology, Inner Mongolia, Hohhot
来源：
Yu, Yingli (yingli8088@163.com) | 1600年 / Chemical Industry Press Co., Ltd.卷 / 39期
关键词：
analysis; coal-fired power plant boiler; countermeasures; high temperature corrosion; water wall;
D O I：
10.16085/j.issn.1000-6613.2020-0302
中图分类号：
学科分类号：
摘要：
The object of research is the high-temperature corrosion of the water-cooled wall of the utility boiler in the form of hedge combustion. The corrosion characteristics of the water-cooled wall combustion area are modeled and analyzed from the perspective of corrosion mechanism and combustion characteristics. The distribution of sulfide-type molten salt corrosion parts is distributed. The areas where severe corrosion occurs will be concentrated in the area around the burners on both sides of the wall, the area of the lower cold ash hopper, and the middle of the sides of the wall between the upper burner and the top burnout vent region. The verification of field measured data shows that when the oxygen concentration in the near wall of the water-cooled wall of a coal-fired power plant boiler is extremely low, the concentration of H2S, CO and other substances exceeds the requirements of the corrosion judgment index.Combined with engineering experience, specific measures for high temperature corrosion prevention of water-cooled walls are given. © 2020, Chemical Industry Press Co., Ltd.. All rights reserved.
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页码：90 / 96
页数：6
相关论文
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