金属加工（热加工）Issue(6)：45-49,5.
660MW锅炉水冷壁管道泄漏分析
Leak analysis of 660MW boiler water wall pipeline
杜佼伟 1李霄 2吕品正 3张正华 2肖世俊 2薛海洋2
作者信息
- 1. 西安石油大学材料科学与工程学院 陕西西安 710016||陕西君创智盈能源科技有限公司 陕西西安 710016
- 2. 西安石油大学材料科学与工程学院 陕西西安 710016
- 3. 陕西君创智盈能源科技有限公司 陕西西安 710016
- 折叠
摘要
Abstract
The failure and leakage of boiler materials in thermal power plants is one of the main reasons for the unplanned shutdown of units,and the causes of material failure and leakage are complex.However,there is relatively little failure leakage due to fin welding.Based on the leakage of vertical water wall of the side wall of the boiler of a 660MW unit of a power plant,this paper tests the failed pipeline by methods such as macroscopic analysis,mechanical analysis and metallographic inspection of metal materials,and analyzes the causes of leakage based on the actual situation on site.The test results found that the leakage of the pipeline was the cracking of the pipe fin,and the crack extended to the water-cooled wall pipeline,resulting in the pipe bursting under high temperature and high pressure.This research and analysis aims to put forward a new analysis idea for the leakage failure of boilers in power stations,and provide a technical basis for reducing the number of non-stop units.关键词
水冷壁/鳍片/裂纹/泄漏分析Key words
water-cooled wall/fins/crack/leakage analysis引用本文复制引用
杜佼伟,李霄,吕品正,张正华,肖世俊,薛海洋..660MW锅炉水冷壁管道泄漏分析[J].金属加工（热加工）,2024,(6):45-49,5.
