加油站新旧输油管线碰头焊接方法探讨

Discussion on the method of joint welding between the new and old oil supply pipeline in the automobile gasoline filling station

《汽车加油加气站设计与施工规范》(GB50156-2002)中提到加油站输油管道宜采用无缝钢管、连接方式采用焊接是输油管道敷设的基本要求,其优点是焊缝少、比较严密可靠、施工速度快、省材省工、便于防腐、不容易出现渗漏隐患。但加油站在改造输油管线时,新旧管线碰头焊接过程中产生的火花易点燃管线中的油气引发火灾及爆炸。因此,如何在新旧输油管线碰头焊接时安全施工就成为了需要我们探讨的问题。本文结合丹东太平湾加油站输油管线改造的实际情况,简要的阐述了加油站含油气管线碰头焊接的几种方法。

Mentioned in 《Code for design and construction of automobile gasoline filling station》（GB50156-2002）,it is the basic requirements of oil supply pipeline laying that oil supply pipeline should adopt the seamless steel pipe,connected by welding in the automobile gasoline filling station.It has several advantages,first is less weld,second is relatively close and reliable,third is the fast construction speed,fourth is saving material and labor,fifth is easy to corrosion,sixth is not prone to leakage risk that oil supply pipeline should adopt the seamless steel pipe,connected by welding in the automobile gasoline filling station.However,when the oil supply pipeline transformated in the automobile gasoline filling station,it is easy to to cause fire and explosion by the sparks produced in the process of joint welding between the new and old oil supply pipeline ignite oil gas.Therefore,how to construction safety in jiont welding between the new and old oil supply pipeline has become the issue that needs to be discussednow.Combining with the actual situation of the oil supply pipeline transformation in Dandong Taiping Bay automobile gasoline filling station,several methods of the oil and gas pipeline joint welding in this article.