关键词: 关键词：1000MW超超临界锅炉, 蒸汽侧氧化, 分析, 防治措施, 处理工艺, 洁净化管理

Abstract: Abstract:The formation and fallingoff mechanism of oxidation layer on steam side metal pipe of heating surface of 1000MW ultra supercritical boiler were analyzed. The application of antioxidant metal materials in pipe of 1000MW ultra supercritical boiler and the arrangement form of heating surface were expounded. In the pipe manufacturing process, the shot peening process inside the pipe was added, and the pipe clean management during manufacturing and erection process was enhanced. In operation of the pipe, the rational operating technology was adopted to control of the oxidation layer falling off. The formation of the oxidation layer on steam side was controlled, and the service life of the high temperature steam pipe was extended.

Key words: Keywords:1000MW ultra supercritical boiler, oxidization of steam side metal pipe, analysis, mechanism, prevention measures, treatment process, clean management