Failure analysis of platen superheater tube, water wall tube, and sealpot plate: A case study from electricity power plant in indonesia

被引:29
作者
Himarosa, Rela Adi [1 ]
Hariyanto, Satriawan Dini [2 ]
Hasan, Wisnu Hozaifa [3 ]
Muflikhun, Muhammad Akhsin [3 ]
机构
[1] Univ Muhammadiyah Yogyakarta, Mech Engn Dept, Yogyakarta, Indonesia
[2] IST AKPRIND, Mech Engn Dept, Yogyakarta, Indonesia
[3] Gadjah Mada Univ, Mech & Ind Engn Dept, Yogyakarta, Indonesia
关键词
Platen superheater tube; Water wall tube; Sealpot plate; Erosion; Leakage; ECONOMIZER TUBES; BOILER TUBE; CORROSION;
D O I
10.1016/j.engfailanal.2022.106108
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Failure analysis of the platen superheater tube, water wall tube, and sealpot plate were investi-gated in the present study. To examine the causes of failure, various techniques, including visual examination, chemical composition test using Optical Emission Spectrometry (OES), fracture surface examination using Scanning Electron Microscope (SEM), tensile test, hardness test, and metallography test were carried out. Samples average thickness were 6.46 mm, 6.23 mm, and 9.29 mm, respectively. The chemical composition of the platen superheater tube, water wall tube, and sealpot plate material samples was not conforming to the standard material. The eroded tube surface contributed to the failure mechanism that caused by escaping steam in high velocity which leading to another leakage. This escaping steam also damages the adjacent surface by 'steam cutting' mode and erosion in both platen superheater tube and water wall tube.
引用
收藏
页数:15
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