Boiler tube failures (BTFs) in natural circulation high pressure drum boiler of a power station

被引：0

作者：

Sohail, M. Azad ^{[1
]}

Mustafa, A. Ismail ^{[2
]}

Gafur, M. Abdul ^{[3
]}

机构：

[1] BPDB, Cent Chem Res Lab, Ghorasal Thermal Power Stn, Narsingdi 1610, Bangladesh

[2] Univ Dhaka, Dept Appl Chem & Chem Technol, Dhaka 1000, Bangladesh

[3] Bangladesh Council Sci & Ind Res, Pilot Plant & Proc Dev Ctr, Dhaka 1205, Bangladesh

来源：

JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH | 2009年 / 68卷 / 01期

关键词：

BTFs; Boiler; Hydrogen damage; Regime; Water wall tubes;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper assesses boiler tube failures (BTFs), especially in boiler water wall tubes (BWWTs) for a natural Circulation high-pressure fossil (natural gas) drum boiler unit (TIME-COB-206, Russia). Metallographic (micro and macrostructural) examinations of BWWTs materials (carbon steel, Russia) were carried Out extensively. Analyses of carbon (mild) steels (0.22% C) revealed distinctive changes in ferrite-pearlite distribution, might be due to decarburization. Huge pits, few grooves followed by now lines were observed on internal surfaces of BWWTs with respect to length of power plant operation. Corrosions or scaling in BWWTs depicted one of the major causes of BTFs in fossil units with drum boilers usually treated by coordinated phosphates.

引用

页码：61 / 65

页数：5

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