燃料与化工 ›› 2015, Vol. 46 ›› Issue (5): 25-27.

• 煤焦技术 • 上一篇    下一篇

干熄焦锅炉二次过热器腐蚀原因分析

晁伟1  张效鹏1  关少奎2  曹贵杰2   

  1. 1.首钢技术研究院, 北京100043; 2.迁安中化煤化工有限责任公司, 唐山064404
  • 出版日期:2015-09-17

Analysis of causes for corrosion of secondary superheater in CDQ boiler

Chao Wei1  Zhang Xiaopeng1  Guan Shaokui2  Cao Guijie2   

  1. 1.Shougang Research Institute of Technology,Beijing 100043,China;2.Qian’an Zhonghua Coal Chemical Co.,Ltd.,Tangshan 064404,China
  • Online:2015-09-17

摘要:

通过对已损坏的二次过热器管进行扫描电镜观察及能谱分析,认为高温硫腐蚀是造成干熄焦锅炉二次过热器管壁损坏进而引起锅炉爆管的主要原因,改进后没有再发生爆管事故。

Abstract:

This paper analyzes the broken tubes of secondary superheater by Scanning Electron Microscope (SEM) and Energy Dispersive X-Ray Spectroscopy (EDS) and found that the high temperature sulfur corrosion is the main reason for the tube damage and further tube burst.After corresponding improvement, there is no more tube burst accident.

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