超临界锅炉中T23管内氧化皮的生成及剥落机理研究被引量：5

Study on mechanisms for oxide scale formation and exfoliation of alloy T23 tubes in supercritical boilers

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摘要通过对超临界锅炉中T23管内氧化皮检查和剥落物取样,利用能量色散谱仪和X射线衍射仪对其进行试验研究。分析了T23管内氧化皮的成分和结构特征,阐述了氧化皮生成和剥落机理及其影响因素,并提出了防治氧化皮大面积脱落的措施,为减轻超临界锅炉高温受热面管内氧化皮的生成,避免超温爆管等提供了一定的基础。 The oxide scale sampled on heat-absorbing surface of alloy T23 tubes in supercritical boilers was examined.The oxide exfoliation sampled was studied experimentally by energy dispersive spectrometer and the X-ray diffract meter.The constituent elements and structural features of oxide scale in T23 tubes were emphatically analyzed.The mechanism of scale formation and exfoliation,as well as its influence factor,were described.The measures that controlled the oxide exfoliation on a large scale were brought forward so as to provide a scientific guidance for reducing the oxide scale formation on high temperature heat-absorbing surface and avoiding tube bursting for over-temperature.

作者徐开华张振顶李茂东叶向荣

机构地区广州特种承压设备检测研究院

出处《电力科技与环保》 2014年第6期54-57,共4页 Electric Power Technology and Environmental Protection

关键词超临界锅炉 T23 氧化皮生成与剥落机理防治对策 supercritical boilers alloy T23 oxide scale mechanism of formation and exfoliation countermeasure

分类号 TK229.2 [动力工程及工程热物理—动力机械及工程]

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