能源工程2026，Vol.46Issue(4)：53-57,5.DOI:10.16189/j.nygc.2026.04.008
某9F燃气发电机组汽轮机中压内缸裂纹机理分析及应对技术研究
Research on crack mechanism analysis and countermeasure technology for the intermediate pressure inner cylinder of a 9F gas turbine generator set
杨晓波 1赵卫正 2葛力墅 3叶建君 4孙永平 2华敏 2谢斌2
作者信息
- 1. 浙江浙能电力股份有限公司,浙江 杭州 310007
- 2. 浙江浙能技术研究院有限公司,浙江 杭州 311121||浙江省火力发电高效节能与污染物控制技术研究重点实验室,浙江 杭州 311121
- 3. 浙江浙能技术研究院有限公司,浙江 杭州 311121||浙江浙能温州发电有限公司,浙江 温州 325602
- 4. 浙江浙能电力股份有限公司萧山发电厂,浙江 杭州 311251
- 折叠
摘要
Abstract
A 9F gas-steam combined cycle unit,utilizing Siemens technology,underwent its first major overhaul(A-level maintenance)after thousands of start-up and shutdown cycles.During the overhaul,fatigue cracks were discovered at the fillet(R-angle)of the inlet chamber of the unit's intermediate pressure(IP)inner casing.This phenomenon has been observed repeatedly in similar types of units.This paper analyzes the mechanism behind the crack formation and develops a comprehensive technical solution.After implementation,the expected results were achieved,providing an important practical example and reference for solving this common type of problem.关键词
联合循环机组/汽轮机/中压内缸/进汽腔室/疲劳裂纹Key words
combined cycle units/steam turbine/intermediate pressure inner casing/inlet chamber/fatigue crack分类
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杨晓波,赵卫正,葛力墅,叶建君,孙永平,华敏,谢斌..某9F燃气发电机组汽轮机中压内缸裂纹机理分析及应对技术研究[J].能源工程,2026,46(4):53-57,5.
