摘要
对于一些新建管道,在其未来的腐蚀情况不可预知的情况下,应主要对其进行疲劳剩余寿命预测。疲劳断裂是一种很危险的脆断破坏形式,它出现的时间和位置很难预计。文中从疲劳方面,在考虑了材料特性、环境介质和加载状态的前提下,对穿越河流输油管道的疲劳剩余寿命进行分析。同时,对一段在役穿越河流输油管道的疲劳和腐蚀剩余寿命分别进行计算、比较,取其较小值,确定其剩余寿命。提供了更及时、准确地报告穿越管道的剩余寿命,合理地制定维修、检测周期的依据,使在役穿越管道的管理、检测更加科学。
For new pipelines, when its erosion in future is unknown, this paper should forecast its fatigue life. Fatigue rupture is a dangerous destructive form and it is difficult to forecast its time and position. Considering the material characteristic, the surrounding medium and the loading state, this paper analyses the fatigue life of cross-the-river oil pipeline, and at the same time, calculates and compares its fatigue life and remaining life of an eroded cross-the-fiver oil pipeline in service and then determine its life. It provides a bases on reporting the remaining life in time and exactly and establishes the cycle of maintenance and checking reasonably, makes the management and checking of the cross-the-river oil pipeline in service more scientific.
出处
《管道技术与设备》
CAS
2009年第5期5-7,共3页
Pipeline Technique and Equipment
关键词
穿越河流
输油管道
疲劳
剩余寿命
cross-the-river
oil pipeline
fatigue
remaining life
