scholarly journals Recent Advancement of Welding in High Pressure and High Temperature Boilers and Steam Pipes for Thermal Power Plant in Japan

1965 ◽  
Vol 34 (10) ◽  
pp. 1049-1056
Author(s):  
Otomaro Takagi
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Recent Advancement ◽  
Steam Pipes

High-temperature heat-insulating materials based on hollow aluminosilicate microspheres from the ash dump of the apatity thermal power plant

2000 ◽  
Vol 41 (2) ◽  
pp. 50-55 ◽  
Author(s):  
N. N. Grishin ◽  
O. A. Belogurova ◽  
A. T. Belyaevskii ◽  
Yu. P. Osipov ◽  
V. T. Kalinnikov
Keyword(s):  
High Temperature ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Insulating Materials ◽  
Temperature Heat

Failure Analysis of the Corroded Water Wall Tube in a 50MW Thermal Power Plant

2018 ◽  
Vol 37 (9-10) ◽  
pp. 995-999 ◽  
Author(s):  
Guohua Yang ◽  
Yuanbo Gou ◽  
Xinshi Liu ◽  
Xiaoming Zhang ◽  
Tuo Zhang
Keyword(s):  
High Temperature ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Energy Dispersive Spectrometer ◽  
Thermal Power ◽  
Effective Means ◽  
High Temperature Corrosion ◽  
Boiler Water ◽  
Water Wall ◽  
Water Wall Tube

AbstractHigh temperature corrosion of the water wall tube in a 50 MW thermal power plant was investigated which caused several boiler accidents. X-ray diffraction (XRD) and scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS) were used to observe the cross-sectional morphology of the tube and analyze the oxide scales. Results show that the boiler water and the coal quality did not meet the requirements. High temperature corrosion of water wall tubes was attributed to the using of coal which had a higher ash content and lower received lower heating value. Higher dissolved oxygen and incrustation in the boiler water caused serious corrosion at the inner surface of water wall tube, which led to the possibility of decarburization and degradation of the steel. Suitable coal blending and stability of the thermal load were the effective means to prevent the high temperature corrosion of the tube.

Application of Continuous Indentation Technique in Thermal Power Plant

2007 ◽  
Vol 26-28 ◽  
pp. 1149-1152
Author(s):  
Doo Song Gil ◽  
Yeon Shik Ahn ◽  
Sang Ki Park
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Indentation Technique ◽  
Stiffness Evaluation ◽  
Reheat Steam ◽  
Main Steam ◽  
Continuous Indentation ◽  
Steam Pipes ◽  
Service Inspection

Reliability evaluation of the welded structure is divided by method concentrating on defect and mechanical property. Thermal power plant facilities are operated in high temperature, high pressure and called for safety guarantee. Three factors are constituted for this. The First is PSI(pre-service inspection) and the second is ISI(in-service inspection) and the third is quantitative analysis in safety. Main steam and hot reheat steam pipes in thermal power plant are frequently making a trouble because of unsuitable quality control under construction. So, the suitable construction and the development of life forecast method is urgent matter. Therefore, the continuous indentation technique is interested in effective test method of pipes in power plant facilities. This strong point of the continuous indentation technique is possibility of super-precision measurement, programmed test analysis, nondestructive stiffness evaluation. This study is focused on the possibility of the continuous indentation technique application in main steam and hot reheat steam pipes for stiffness evaluation in thermal power plant facilities.

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