Analysis of failures in boiler tubes due to fireside corrosion in a waste heat recovery boiler

被引：55

作者：

Srikanth, S

Ravikumar, B

Das, SK

Gopalakrishna, K

Nandakumar, K

Vijayan, P

机构：

[1] Natl Met Lab Madras Ctr, Madras 600113, Tamil Nadu, India

[2] Natl Met Lab, Mat Characterizat Div, Jamshedpur 831007, Bihar, India

[3] Bharat heavy Elect Ltd, Res & Dev Sect, Tiruchirappalli 620014, Tamil Nadu, India

来源：

ENGINEERING FAILURE ANALYSIS | 2003年 / 10卷 / 01期

关键词：

boiler failures; economiser tube; corrosion; failure analysis; metallurgical examination;

D O I：

10.1016/S1350-6307(02)00030-4

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The failures of boiler tubes due to fireside corrosion in a waste heat recovery boiler utilizing the exhaust gas of a gas turbine fired with high-speed diesel has been analyzed. Deposits from the various zones of the boiler were collected and characterized by chemical analysis, scanning electron microscopy and X-ray diffraction. Thermodynamic modeling studies were carried out to study the interaction of the flue gas with the various components of the boiler. The high corrosion propensity and consequent failures in the low temperature sections of the boiler were found to be directly related to the formation of hydrated ferric sulfate in these regions. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：59 / 66

页数：8