长距离输送管线的组合清洗

Combined type cleaning for long distance transportation pipeline

在清洗一些长距离输送管线时,因管线的特殊性或无法进行循环清洗而采取组合式清洗,即采用开路化学清洗的方式加在清洗前后用PIG进行清洗及处理,达到推出管道内异物、焊渣等杂物,并在清洗钝化后对管线进行干燥、表面清洁处理。

This article has shallowly stated when cleaning some long distance transportation pipelines, because the pipeline particularity or is unable to carry on the circulation cleaning to adopt the combined type cleaning, namely the way chemistry cleaning way to add around the cleaning carries on the cleaning and processing with PIG, after achieved promotes in the pipeline the foreign matter, welds sundry goods and the cleaning deactivation and so on dregs, dryly carries on, the superficial clean processing effect to the pipeline.