Air Preheaters Operating Situation and Analysis in Coal-Fired Generators

Abstract:

To prevent and dispose all kinds of problems occurred in the air preheaters of the large coal-fired power plants and improve the performance of the air preheaters, the representative problems of the air preheaters in Henan province was summarized with the statistical method. With specific cases, its adverse impact for boilers and auxiliary machines were analyzed. The main reasons for causing these problems were design flaws, maintain undeserved, poor blowing effect and high sulfur content in coal that can cause acid corrosion to the air preheaters. A series of countermeasures were put forward to resolve the problems.

• Periodical: Advanced Materials Research (Volumes 614-615)
• Pages: 186-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.614-615.186
• Online since: December 2012
• Authors: Ling Li, Min Li, Bu Ting Zhang, Kai Qiao
• Keywords: Air Leakage Rate, Air Preheaters, Heat Exchange Efficiency, Running Resistance

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