摘要
针对伊拉克共和国Wassit电站6台油气锅炉近6年运行中所出现的低温腐蚀、锅炉振动、炉底泄漏、油枪失效等问题,结合中东地区周边电厂的调研情况,通过对比分析和模拟计算,指出了低温腐蚀、锅炉振动的原因,建议燃用中东含硫量较高的燃油时,空气预热器进口风温和出口烟温设计值应分别不低于80℃和175℃,送风机出口应加装导流板或采用对称布置的喇叭形风道,尾部烟道宜采用考登钢;设计时应对锅炉振动进行充分计算,避免后期出现问题时再花巨资改造。比较了不同形式炉底密封装置和油枪装置的优缺点,可为相关企业的选型设计提供参考。
To address the low temperature corrosion,boiler vibration,furnace bottom leakage and oil gun failure occurred in six petroleum-gas boilers of Wassit Power Station in Republic of Iraq during the past six years,an research on surrounding power plants in the Middle East was conducted.By comparison and simulation calculation,the causes and countermeasures of low temperature corrosion and boiler vibration were pointed out.It is recommended that the design values of the air temperature at the inlet and the smoke temperature at the outlet of the air preheater should not be lower than 80℃and 175℃,respectively.Deflectors or a horn-shaped air duct with symmetrical arrangement should be installed at the outlet of the blower,and the tail flue duct should be made of Corten steel.The boiler vibration should be fully considered at designing stage,so as to avoid the huge cost in rectifying the flawed construction.The advantages and disadvantages of different furnace bottom sealing devices and oil gun devices are compared,which can provide a reference for the selection and design of related enterprises.
作者
朱少春
ZHU Shaochun(Power Station Branch,Shanghai Electric Power Generation Group,Shanghai 201199,China)
出处
《华电技术》
CAS
2020年第6期72-75,82,共5页
HUADIAN TECHNOLOGY
关键词
油气锅炉
低温腐蚀
振动
炉底密封
油枪
中东
petroleum-gas boiler
low temperature corrosion
vibration
sealing of furnace bottom
oil gun
the Middle East
