当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2013年
7期
1029-1032
,共4页
埋藏裂纹%X80%安全评定%剩余寿命%Pairs
埋藏裂紋%X80%安全評定%剩餘壽命%Pairs
매장렬문%X80%안전평정%잉여수명%Pairs
Hidden cracks%X80%Safety assessment%Remaining life%Pairs
采用 GB/T19624-2004标准，对长输管线中的埋藏裂纹缺陷进行安全评定，在评定的过程中选取了4种壁厚不同的X80管线进行常规评定，计算出了断裂比、载荷比并绘制出了失效评定图。采用Pairs公式对一段含缺陷在役管线进行剩余寿命计算，为管线的维修、检测提供了一定的理论依据。
採用 GB/T19624-2004標準，對長輸管線中的埋藏裂紋缺陷進行安全評定，在評定的過程中選取瞭4種壁厚不同的X80管線進行常規評定，計算齣瞭斷裂比、載荷比併繪製齣瞭失效評定圖。採用Pairs公式對一段含缺陷在役管線進行剩餘壽命計算，為管線的維脩、檢測提供瞭一定的理論依據。
채용 GB/T19624-2004표준，대장수관선중적매장렬문결함진행안전평정，재평정적과정중선취료4충벽후불동적X80관선진행상규평정，계산출료단렬비、재하비병회제출료실효평정도。채용Pairs공식대일단함결함재역관선진행잉여수명계산，위관선적유수、검측제공료일정적이론의거。
Based on GB/T19624-2004 , safety assessment for hidden crack defects of long-distance pipeline lack was carried out,four kinds of X80 pipelines with different thickness were selected for general assessment, the fracture ratio and load ratio were calculated, and the failure assessment diagram was drawn out. The remaining life of a pipeline in service with defects was calculated by using Pairs formula, which can provide a theoretical basis for repair and testing of the pipeline.
