煤气与热力2026，Vol.46Issue(1)：4-6,3.
波纹管补偿器波纹管剩余寿命试验评估
Test Evaluation of Remaining Life of Bellows in Bellows Expansion Joints
林凡勇 1周鹏1
作者信息
- 1. 中国市政工程东北设计研究总院有限公司,吉林长春 130000
- 折叠
摘要
Abstract
Taking the bellows expansion joints of the heating pipe network in a city in North China as the evaluation object,the heating medium was analyzed,the fatigue test of bellows was carried out,the remain-ing life was evaluated,and some suggestions for im-proving fatigue performance were put forward.Exces-sive mass concentration of chloride ions is one of the causes of leakage in bellows expansion joints.The re-sidual life of bellows is not ideal,mainly because of the stress concentration area of bellows.Ensuring that the quality of the heating medium meets the standard and preventing corrosion caused by excessively high mass concentration of chloride ions can extend the service life of the bellows.The stress concentration of bellows should be reduced by optimizing the structural design.Strictly controlling the manufacturing process to elimi-nate defects is also an effective means to improve fa-tigue performance.关键词
波纹管补偿器/波纹管/剩余寿命/疲劳失效Key words
bellows expansion joints/bellows/remain-ing life/fatigue failure分类
建筑与水利引用本文复制引用
林凡勇,周鹏..波纹管补偿器波纹管剩余寿命试验评估[J].煤气与热力,2026,46(1):4-6,3.
