煤气管道带压开孔作业技术

摘要

The blast furnace gas, coke oven gas and the other secondary energy have come wide use, therefore it＇ s frequently required to make holes on the gas pipeline when the gas supply is disconnected. Such the hole making operation with pressure can keep the gas pipeline system in normal operation and make the construction oeriod short, cost low and economic benefit increased. into not the%随着高炉、转炉、焦炉煤气等二次能源的广泛使用，煤气管道开孔作业日益频繁，该文介绍了煤气管道不停气开孔作业技术，即作业时煤气管道不用停气，不影响管道系统正常运转，施工周期短成本低，经济效益十分显著。