Analysis on reasons of corrosion in inner wall of CFB boiler water wall tubes and treatment measures

Huadian Technology ›› 2011, Vol. 33 ›› Issue (4): 37-38.

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Analysis on reasons of corrosion in inner wall of CFB boiler water wall tubes and treatment measures

ZHENG Huixiana,XU Huifena,HE Libingb

Zhejiang Jiangshan Chemical Corporation Limited, a.Equipment & Power Department; b.Thermal Power Plant, Jiangshan 324100, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-04-25 Published:2011-04-25

Abstract

Abstract: In the Thermal Power Plant of Zhejiang Jiangshan Chemical Corporation Limited, due to corrosion of inner wall of CFB boiler water wall tubes, the tube cracking accident was occurred many times for short term. Using the steel tube corrosion scanning detector, the remote field eddy current testing for water wall tubes in key area was carried out. By many times analysis, the corrosion defect positions were found, and the corrosion reasons were determined. The relevant preventive measures were adopted, and the tube cracking accident does not occur again.

Key words: water wall tube, tube cracking, reason analysis, corrosion, conductivity, remote field eddy current testing

ZHENG Huixiana;XU Huifena;HE Libingb. Analysis on reasons of corrosion in inner wall of CFB boiler water wall tubes and treatment measures[J]. Huadian Technology, 2011, 33(4): 37-38.

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Analysis on reasons of corrosion in inner wall of CFB boiler water wall tubes and treatment measures

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