衡水发电厂#1锅炉灭火原因分析

Cause Analysis on Fire-off of Boiler No. 1 in Hengshui Power Plant

根据事故发生后所获得的历史曲线 ,从几方面分析了事故发生的原因。分析认为 ,锅炉灭火保护动作是因为送风系统发生了喘振 ,引起喘振的原因是由于对制粉系统运行调整不当 。

Based on the historical curves obtained after the accident, the causes of the accident are analyzed from all side of the event. The results indicate that surging of forced draft system initiates the boiler fireoff protection, and improper operational control of coalpulverizing system induces surging. From this, effective prevention measures are proposed.