Boiler drums in power plants are mainly damaged by the low-cycle fatigue. 摘要低周疲劳损伤是电站锅炉汽包的主要失效形式。
The procedure for reformation and the new spiral-tube type of air preheater used may be well observed by other thermal power plants where boilers are fired with low quality coals. 改造采取的措施及采用新型的螺旋槽管空气预热器，可对燃用劣质煤的电站锅炉改造起到良好的借鉴作用。
