烃类管道带压包焊风险控制要领探索

EXPLORATION ON THE KEY POINTS FOR RISK CONTROL OF REPAIR WELDING WITH PRESSURE IN HYDROCARBON PIPELINE

在无法进行能量隔离、释放且风险可控的情况下,若烃类管道出现泄漏,需要进行在线包焊作业。烃类管道在线包焊作业的风险较大,需要落实一系列风险控制措施。管道是否具备在线施焊的条件是防止作业过程中出现不可控事件发生的关键,实际壁厚下管道在线施焊耐受压力的测算,也非常重要。

Leakage of hydrocarbon pipelines requires on-line welding operations when energy isolation and release are impossible and the risk is controllable.On-line welding of hydrocarbon pipelines is of great risk,therefore,a series of risk control measures need to be implemented.Whether the pipeline has the conditions for on-line welding is certainly the key to prevent uncontrollable events during the operation,especially in the calculation of on-line welding pipelines pressure-resistance under actual wall thickness.