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PE燃气管如何做到带压施工?

作者: admin    来源:http://www.laobingguandao.com  时间:2019-12-25    人气:
  PE燃气管道在维修或施工过程中经常遇到维修或施工不停车输气的问题,大家都知道PE燃气管道中的天然气是易燃易爆气体。用煤气建筑是很危险的。这是一种用气体和压力进行施工或维护的方法。
  PE gas pipeline often encounters the problem of gas transmission without stopping during maintenance or construction. It is known that the natural gas in PE gas pipeline is flammable and explosive. It's dangerous to build with gas. This is a method of construction or maintenance with gas and pressure.
  PE管道连续带压穿孔是指在封闭状态下,机械切割方式在管道运行中形成一个圆孔的工艺。在职时需要安装分支管道,管道连接或更换阀门,更换管部分,路由和转换管道,以及维修、紧急维修,管道故障的紧急和治疗,输油管道的建设与压力洞不会影响管道的正常传输,而且还确保安全,效率和环境保护的建设。
  Continuous pressure piercing of PE pipeline refers to the process of forming a round hole in the pipeline operation by mechanical cutting under the closed state. When in office, it is necessary to install branch pipelines, connect or replace valves, replace parts of pipelines, route and transfer pipelines, repair and emergency maintenance, emergency and treatment of pipeline faults, construction of oil pipelines and pressure holes will not affect the normal transmission of pipelines, but also ensure the construction of safety, efficiency and environmental protection.
  压扁夹具是用来压平管道的
  The flattening fixture is used to flatten the pipe
  利用聚乙烯管的柔韧性,用压扁夹具压扁聚乙烯管,控制管道内的气体流动。但是,这种方法不能用于高压管道,不能在施工过程中完全切断带压,但控制流量不等于零流量。
  Using the flexibility of polyethylene pipe, flatten the polyethylene pipe with flattening fixture to control the gas flow in the pipe. However, this method can not be used for high-pressure pipeline, and can not completely cut off the pressure in the construction process, but the control flow is not equal to zero flow.
HDPE双平壁钢塑复合缠绕管
  二、采用开放流程
  2、 Adopt open process
  上述开孔工艺是一种闭式冲孔方法,用于PE燃气管道的连续输送和连接端口。使用时将标准PE球阀、鞍座直管件、开孔刀具等连接在待加插座的位置。开孔时打开球阀。
  The opening process is a closed punching method, which is used for continuous transmission and connection port of PE gas pipeline. When in use, connect standard PE ball valve, saddle straight pipe, opening tool, etc. to the position where the socket is to be added. Open the ball valve when opening.
  三:双向阻断不停机传输过程
  3: Two way blocking the transmission process without stopping
  双密封双堵不停车传动技术是管道运行中不停车传动的一种操作方法。其基本原理是:在有压力输送的管道内进行各种施工或修复作业,对管道两端的截面进行双堵。
  The technology of double seal and double block non stop transmission is a kind of operation method of non stop transmission in pipeline operation. Its basic principle is: carry out various construction or repair operations in the pipeline with pressure transmission, and double block the sections at both ends of the pipeline.

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