Analysis on overtemperature reasons of heating surface of platen superheater in supercritical boiler and its countermeasures

Abstract

Abstract: After first overhaul for inspection of the oncethrough boiler No.1 of Huadian Suzhou Power Generation Corporation Limited, the overtemperature phenomenon was often occurred in outlet Aside of the platen superheater. According to the analysis, it was considered that the most direct reason of the higher temperature of the heating surface is the combustion stroke in the furnace was lengthened and the flame center was moved up. The ventilation system and the combustion system of the boiler No.1 were optimized, and the wall temperature of the platen superheater left side was controlled effectively. 

Key words: supercritical, over-temperature, flame center, combustion adjustment

ZOU Jiaqi;CHEN Yongbin;ZHANG Dong. Analysis on overtemperature reasons of heating surface of platen superheater in supercritical boiler and its countermeasures[J]. Huadian Technology, 2010, 32(10): 16-17.

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Analysis on overtemperature reasons of heating surface of platen superheater in supercritical boiler and its countermeasures

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