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煤气管道是焦化厂生产及回收的输送系统,随着时间的推移,管道材质及焊接质量的某些缺陷,会使管道腐蚀速度加快,出现不同程度的泄漏点。如不及时补漏,就有可能发生燃烧和爆炸,造成设备和人身事故。因此,一旦发现泄漏就停产检修,采用蒸汽置换、盲板隔离法动火补漏。但此法费工费时,并且弯头死角的剩余气体很难置换干净,留下事故隐患。为了克服上述弊病,我厂试验总结出了一套煤气管道“正压焊补法”,经过五年近十次举压动火实践检验,效果很
Gas pipeline is the coking plant production and recovery of the delivery system, with the passage of time, the quality of the pipe material and some of the shortcomings of the quality of the pipeline corrosion will speed up the emergence of different levels of leakage. If not timely trapping, there may be a burning and explosion, resulting in equipment and personal accident. Therefore, once the leakage was found to stop production overhaul, the use of steam replacement, blind blanking isolation method. However, this method costs time, and the remaining gas elbow corner is difficult to replace clean, leaving hidden dangers of accidents. In order to overcome the above shortcomings, I plant test summed up a set of gas pipeline “pressure compensation method”, after five years of lifting the pressure test of fire practice, the effect is very