湿法脱硫烟气系统腐蚀环境及ND钢与316L不锈钢的耐蚀性能比较

赵阳; 梁磊; 张建良; 刘世宏

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DOI:10.3969/j.issn.1006-4729.2016.03.002

Journal of ShangHai University of Electric Power :2016,32(3):216-220

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湿法脱硫烟气系统腐蚀环境及ND钢与316L不锈钢的耐蚀性能比较

赵阳, 梁磊, 张建良, 刘世宏

(上海电力学院能源与机械工程学院)

Flue Gas Wet Desulphurization System Corrosion Environment and the Comparison of ND Steel and 316L Corrosion Resistance

ZHAO Yang, LIANG Lei, ZHANG Jianliang, LIU Shihong

(School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China)

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Received:March 23, 2015

中文摘要: 腐蚀是湿法脱硫(WFGD)烟气系统中较突出的问题,材料选择至关重要.ND钢和不锈钢316L耐蚀性能的强弱是电力行业的一个困惑,文献的结论互相矛盾.调查、分析了实际湿法脱硫烟气系统的腐蚀环境条件和不同文献的试验研究条件,对产生不同结论的主要原因作了初步探讨.用实际烟气系统冷凝液对316L不锈钢、ND钢和20钢进行浸泡腐蚀试验,结果表明,316L不锈钢的耐蚀性能明显强于ND钢和20钢.

中文关键词: 湿法烟气脱硫烟气再热器露点腐蚀

Abstract:The corrosion is a prominent problem in wet flue gas desulphurization (WFGD) system and material selection is very important.Whether corrosion resistance of ND steel is stronger than 316L stainless steel is a confusing problem and literature conclusions contradict each other in the power industry.By investigating and analyzing the conditions in the actual corrosion environment of WFGD system and the test conditions of different literature,the main reason of the different conclusions is studied preliminarily.The corrosion resistance of 316L is better than the ND steel and 20 steel according to the immersion corrosion test in actual flue gas condensation in general.

keywords: wet flue gas desulfurization flue gas heater dew point corrosion

文章编号：20160302 中图分类号： 文献标志码：

基金项目:上海市科学技术委员会资助项目(13160501000,15DZ1200703);山西省科技厅资助项目(20130321016-03).

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Author Name	Affiliation	E-mail
ZHAO Yang	School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
LIANG Lei	School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China	lianglei@shiep.edu.cn
ZHANG Jianliang	School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
LIU Shihong	School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China