Method for planning the chemical cleaning interval of water wall tubes in thermal power plant boilers based on estimated creep

2018 ◽  
Vol 2018.23 (0) ◽  
pp. D125
Author(s):  
Masahiko MORINAGA ◽  
Masahide YOSHIDA
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Chemical Cleaning ◽  
Water Wall

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.

Analysis of the causes of leakages and preventive strategies of boiler water-wall tubes in a thermal power plant

2020 ◽  
Vol 110 ◽  
pp. 104381 ◽  
Author(s):  
Song Xue ◽  
Ruidong Guo ◽  
Fengtao Hu ◽  
Kai Ding ◽  
Lv Liu ◽  
...  
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Preventive Strategies ◽  
Boiler Water ◽  
Water Wall

Failure investigation of water wall tubes in a drum boiler of a thermal power plant

2020 ◽  
Vol 118 ◽  
pp. 104869 ◽  
Author(s):  
A.H. Assefinejad ◽  
A. Kermanpur ◽  
A.M. Eslami ◽  
J. Kangazian
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Drum Boiler ◽  
Water Wall ◽  
Failure Investigation

Study on The Physico-Chemical and Microbial Profile of The Pond Water in Context of Pollution at Kolaghat Thermal Power Plant, West Bengal, India

2012 ◽  
Vol 3 (6) ◽  
pp. 174-177 ◽  
Author(s):  
Sambhunath Dinda ◽  
◽  
Harekrishna Jana ◽  
Soma Bhattacharya ◽  
Keshab Chandra mondal
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
West Bengal ◽  
Thermal Power ◽  
Pond Water ◽  
Microbial Profile ◽  
Physico Chemical
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