SHI Zhi-gang1, MA Hong1, LI Wei2, et al. STUDY ON DIAGNOSIS AND MECHANISMS OF FAILURE RESULTED FROM CORROSION FATIGUE ON MEMBRANE WATER-WALL TUBES[J]. Thermal power generation, 2008, (5): 77-80.
DOI:
SHI Zhi-gang1, MA Hong1, LI Wei2, et al. STUDY ON DIAGNOSIS AND MECHANISMS OF FAILURE RESULTED FROM CORROSION FATIGUE ON MEMBRANE WATER-WALL TUBES[J]. Thermal power generation, 2008, (5): 77-80. DOI: 10.19666/j.rlfd.2008.05.021.
STUDY ON DIAGNOSIS AND MECHANISMS OF FAILURE RESULTED FROM CORROSION FATIGUE ON MEMBRANE WATER-WALL TUBES
摘要
腐蚀疲劳是锅炉水冷壁管水侧常见的失效类型
其隐蔽性强
破坏性大
严重威胁电厂的安全生产。从某电厂锅炉膜式水冷壁管频繁开裂的实例出发
介绍了水冷壁管腐蚀疲劳失效的特征
分析了疲劳失效的原因及易产生疲劳失效的部位
并提出了降低交变应力和减少腐蚀源等防止对策。
Abstract
The corrosion fatigue is a kind of failure commonly occurred on the water side of water-wall tubes in boiler
having strong covertness and large damaging force
threatening seriously safe production in power plants.From practical example of frequently cracking on membrane water-wall tubes in boilers of one power plant
the characteristics of corrosion fatigue failure of water-wall tubes have been presented
the causes and locations easily resulting in fatigue failure being analyzed