管道腐蚀损伤使管体形成了各种形状、尺寸的缺陷, 严重的缺陷可导致承压管道泄漏或断裂事故发生, 破坏管道的安全平稳运行。因此, 对受到损伤的管道提出科学的评价方法, 便成为管道工业的一种迫切需要。对国内外腐蚀管道的六个评价标准(ASME 31G、API 579、DNV-RP-F101、SY/T 6151、SY/T 6477、 SY/T10048)进行了对比, 介绍了各自的背景、适用范围、评价方法等, 为含体积型缺陷的管道的完整性评价提供指导。

Pipeline corrosion and damage leads to various defects on shapes and sizes, serious defects may cause pressure pipeline leakage or even rupture accident, which destroys the security of pipeline operating. Therefore, reasonable assessment methods are proposed to apply for broken pipeline, which becomes an imperious demand for the pipeline industry. This paper presents comparison for six assessment criteria of pipeline corrosion defects domestic and overseas (including ASME 31G, API 579, DNV RP-F101, SY/T 6151, SY/T 6477-2000, SY/T10048). Their backgrounds, scopes, evaluation methods are introduced, and a guidance for the integrity evaluation containing volumetric defects is provided.