摘要
针对某机组锅炉在启动过程中大幅度超温现象发生概率较高的问题,分析锅炉启动过程中壁温超温的原因,通过调整送风量、配风方式和油枪投退来控制各段烟气温度和各级减温器后汽温,验证了严格按照开机曲线规范来控制升压升温率能够解决锅炉启动过程中的管壁超温问题,保障了机组锅炉运行的安全性。
The causes of wall temperature over-temperature during boiler startup are analyzed in terms of the high probability of large over-temperature phenomenon during boiler startup.The control of flue gas temperature at each section and steam temperature after desuperheaters at all levels by adjusting the air supply volume,air distribution mode and oil gun on/off is investigated.The control of rate of rising pressure and temperature in strict accordance with the start-up curve specification capable of solving the problem of tube wall overtemperature during boiler start-up is verified,so as to guarantee the safety of unit boiler operation.
作者
梁小丽
赵永国
刘贵斌
LIANG Xiaoli;ZHAO Yongguo;LIU Guibin(National Energy Heze Power Generation Co.,Ltd.,Heze 274032,China)
出处
《山东电力高等专科学校学报》
2023年第2期58-62,共5页
Journal of Shandong Electric Power College
关键词
W型火焰
壁温超温
开机曲线
安全性
W-type flame
wall temperature overtemperature
startup curve
security
