腐蚀管道剩余强度评价的影响参数分析  

Analysis of Influence Parameters for the Remaining Strength Assessment of Corroded Pipelines

作　　者：王利波[1] 朱明冲 王明明 杨茜[1] 肖坤[1] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]中国石油化工股份有限公司新疆石油分公司,新疆乌鲁木齐830011 [3]山东金鲁班洁能有限公司,山东德州253100

出　　处：《辽宁化工》2014年第1期106-108,共3页Liaoning Chemical Industry

摘　　要：剩余强度评价方法 ASME B31G、修正的ASME B31G/RSTRENG和DNV-RP-F101中的流变应力、鼓胀系数和腐蚀缺陷投影面积对管道剩余强度评价均有一定的影响。管材的钢级越高,不同定义的流变应力之间差异越小,流变应力对剩余强度评价结果影响就越小;腐蚀缺陷轴向长度越大,不同定义的鼓胀系数之间差异越大,鼓胀系数对剩余强度评价结果影响就越大。The parameters including bulging factor, flow stress, corrosion area of assessment methods such as ASME B31g, Modified ASME B31G/RSTRENG and DNV-RP-F101 have influence on the remaining strength assessment results. The results conclude that, the higher the pipeline steel grade, the less the differences among the flow stresses defined from different assessment methods, the less the influence of flow stresses; the higher the defect length, the bigger the differences among the bulging factors defined from different assessment methods, the bigger the influence of bulging factors.

关 键 词：腐蚀管道 剩余强度 评价方法 参数分析 

分 类 号：TE980[石油与天然气工程—石油机械设备]