TITLE:
Experiment and Analysis on Flue Gas Low Temperature Corrosion Monitoring
AUTHORS:
Xiaona Song, Changshun Zhang, Pei Li, Jun Zheng, Yanping Hu, Xiaoxia Hou, Gang Xu
KEYWORDS:
Experimental Platform; Acid Dew Point; Low-temperature Corrosion; Waste Heat Recovery
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
20,
2013
ABSTRACT: Thermal loss of exhaust flue gas accounts for the
largest proportion of the total boiler thermal loss. Nowadays in China, the
exhaust gas temperature in many thermal power plants is much higher than the
designed value, thus, the recycle and reuse of the waste heat of tail flue gas
is necessary. However, lower exhaust gas temperature will aggravate low temperature
corrosion of the tail heating surface, which also causes huge economic losses.
In order to solve this problem, this paper designs a monitoring experiment
platform of flue gas low temperature corrosion, which can measure the corrosion
condition of different materials by different flue gas compositions and
temperature corrosion speeds. Besides, effects of low temperature corrosion
factors are analyzed to find the best exhaust gas temperature and the surface material
of tail heating surface.