焊管
銲管
한관
WELDED PIPE AND TUBE
2014年
12期
64-67
,共4页
腐蚀管道%安全%可靠性%风险评估%PIRAMID
腐蝕管道%安全%可靠性%風險評估%PIRAMID
부식관도%안전%가고성%풍험평고%PIRAMID
corroded pipeline%safety%reliability%risk assessment%PIRAMID
介绍了腐蚀管道基于可靠性的风险评估方法，给出了破裂、大泄漏和小泄漏3种管道失效模式的极限状态方程及可靠性目标。对一条使用了30年的在役长输管道，采用管道可靠性评价软件PIRAMID，评估了维持现行最大允许操作压力和降低最大允许操作压力两种情况下6年后管道的风险，基于可靠性目标，给出了两种情况下的运行维护策略。
介紹瞭腐蝕管道基于可靠性的風險評估方法，給齣瞭破裂、大洩漏和小洩漏3種管道失效模式的極限狀態方程及可靠性目標。對一條使用瞭30年的在役長輸管道，採用管道可靠性評價軟件PIRAMID，評估瞭維持現行最大允許操作壓力和降低最大允許操作壓力兩種情況下6年後管道的風險，基于可靠性目標，給齣瞭兩種情況下的運行維護策略。
개소료부식관도기우가고성적풍험평고방법，급출료파렬、대설루화소설루3충관도실효모식적겁한상태방정급가고성목표。대일조사용료30년적재역장수관도，채용관도가고성평개연건PIRAMID，평고료유지현행최대윤허조작압력화강저최대윤허조작압력량충정황하6년후관도적풍험，기우가고성목표，급출료량충정황하적운행유호책략。
In this article, it introduced the risk assessment method for corroded pipeline based on reliability theory, gave the limit state equation of 3 kinds of failure mode (fracture, gross leak and leakage) and reliability targets. Using the reasonable assessment software PIRAMID to asses the risk of keeping the current the maximum operation pressure and reducing the maximum allowable operation pressure for an in-serve 30 years pipeline after 6 years, and the operation and aintenance schemes for this pipeline were given under such two cases.
