Materials Reports 2020, Vol. 34 Issue (Z1): 433-435 |
METALS AND METAL MATRIX COMPOSITES |
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Research Progress of High Temperature Corrosion Protection Coating Technologyfor Coal-Burning Boiler Heating Surface |
CHENG Haisong1, LIU Gang1, LEI Gang2, TAN Jun2, CHEN Chunyan1, LIANG Yong1, SU Yueliang1, WU Kaiyan1, DU Yongbin2
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1 Guodian Tongling Power Generation Co., Ltd, Tongling 244100, China; 2 Yantai Longyuan Power Technology Co., Ltd, Yantai 264006, China |
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Abstract With the application of low NOx burning technology used in large-scale power plant boiler based on oxygen deficient combustion and mixed burning of high sulfur content coal, high temperature corrosion exists seriously in boiler heating surface especially membrane water wall panels. As a result, the tube wall thinned rapidly, which caused leakage and explosion of tube. The past few years, various new material and technology were adopted in the protection of boiler heating surface widely with innovation and development of surface engineering technology, and achieved exceptional effect. That improved the operation safety and economy of coal-fired unit greatly. High temperature corrosion mechanism of power station boiler was analysed in detail, the mechanism, merits and demerits of several main protection technologies were described, techno-logy principle and application effect of nano ceramic coating technology by thermal curing was mainly discussed. Finally, prospect of boiler heating surface protection coating technology was forecasted.
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Published: 01 July 2020
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About author:: Haisong Chen, senior engineer, is currently Deputy General Manager of Guodian Tongling Power Generation Co., Ltd. He has been engaged in production and ma-nagement in thermal power plant ; Gang Lei, senior engineer, received his B.E. degree in materials science and engineering and master's degree in materials science from the University of Science and Technology Beijing (USTB) in Sep. 2002—June. 2008. He has published 2 journal papers as the first author, more than 20 patents were authorized, including more than 10 invention patents. His research interests focus on application of new materials and process in energy conservation and environmental protection for power generation industry. |
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