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长输管道的抢修是对管道腐蚀段、变形段突发性破裂进行处理的施工作业,必须在短时间内完成,把停输损失降到最低程度,并确保施工过程中的安全。它的特点是:泄漏介质具有易燃易爆性、毒性和扩散性;抢修时间紧迫;抢修机具要安全可靠和操作人员要有较高的技术素质。带压封堵技术的
The repair of long-distance pipelines is a construction operation that treats pipeline corrosion section and sudden deformation of sudden rupture. It must be completed in a short time, minimize the loss of transportation and stop the loss and ensure the safety during the construction. It is characterized by: leakage of a flammable, toxic and diffusive; emergency repair time; repair machines to be safe and reliable and the operator must have a higher technical quality. With pressure sealing technology