Analysis on safety of heating surface in boiler starting up process and control measures for overtemperature prevention

Huadian Technology ›› 2010, Vol. 32 ›› Issue (12): 61-63.

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Analysis on safety of heating surface in boiler starting up process and control measures for overtemperature prevention

XU Juntao, LIU Zhijie

Second Electric Power Branch of Henan Zhongfu Industry Corporation Limited, Gongyi 451200, China

Received:1900-01-01 Revised:1900-01-01 Online:2010-12-25 Published:2010-12-25

Abstract

Abstract: Some problems occurred in starting process of the 300MW boiler of Second Electric Power Branch of Henan Zhongfu Industry Corporation Limited, which include larger temperature difference between the drum’s upper wall and lower wall, serious overtemperature of the low temperature overheater, greater fluctuation of the air preheater current. Due to these problems, the control of whole starting time became more difficult, the life of the metal materials were imperiled seriously; and the long ignition time will cause increase of the fuel oil consumption and decrease of generated electricity.In this paper the safety of the heating surface in boiler starting process was analyzed, and the measures for overtemperature prevention were put forward, which were summarized according to many times starting practices. 

Key words: water wall, steam drum, temperature difference, overtemperature, boiler start-up, heating surface

XU Juntao;LIU Zhijie. Analysis on safety of heating surface in boiler starting up process and control measures for overtemperature prevention[J]. Huadian Technology, 2010, 32(12): 61-63.

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Analysis on safety of heating surface in boiler starting up process and control measures for overtemperature prevention

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