带压处理各类工业介质管道泄漏问题的探讨

Discussion on Pressure-on Leakage Treatment of Various Industrial Media Pipes

各类工业介质管道由于长时间运行对管壁的腐蚀冲刷严重,泄漏点频发。煤气中的灰尘及水分,对煤气管道腐蚀严重,特别是煤气管道的焊缝、膨胀节、排水器喇叭口等处,更易发生焊缝开裂、管壁腐蚀穿孔等重大问题。停煤气置换管道处理时间较长,停产损失巨大;各类地埋水管道,由于长时间受杂质冲刷、药剂腐蚀等原因,也泄漏频发,造成水资源的浪费。介绍了多种不停产带压焊接堵漏方法的操作要领与作业要求。

Due to long time running the walls of various industrial media pipes are seriously eroded with frequent leakage accidents.Dust and moisture in gas severely erode gas pipes,especially the welds,expansion joints and drainer trumpet,etc,are prone to cracking,corrosion perforation and other heavy faults.Pipe replacement treatment with gas shutoff wouldtake long time resulting in big losses.Various underground water pipelines also frequently suffer from leakages due to long term flushing by impurities and agent corrosion,causing water waste.The operation essentials and requirements of various pressure-on welding plugging methods are introduced.