摘要
从安全生产的角度出发,对火力发电厂锅炉受热面管内壁高温蒸汽氧化机理和特征进行了分析;提出了高温蒸汽氧化产物(氧化皮)剥落的影响因素和时机;并针对机组的设计、运行、检修改造、检查检验等阶段的不同特点,提出了氧化皮预防措施。为机组的安全经济运行提供了有益借鉴和重要保障。
Based on safety production, the steam oxidation mechanism and property for inner wall of tube at thermal power plant boiler are described. Influence factor and opportunity of oxide scale exfoliation are put forward. Considering characteristics of different stages, such as design, operation, maintenance and inspection of ultra-supercritical unit, prevention measures of oxide scale are proposed. This research is of great practical significance and reference for safety operating at thermal power plant.
关键词
锅炉受热面管内壁
蒸汽氧化
氧化皮
生长与剥落特性
防治
inner wall of boiler tube
steam oxidation
oxide scale
property of formation and exfoliation
prevention measure
