燃气地埋PE管随管敷设的示踪线,目的是为了以后能更方便的找到燃气管道(是以后找方便找管道的一种辅助手段)。下面来看看相关内容吧。
The tracer line laid along with the gas buried PE pipe is designed to make it easier to find the gas pipe in the future (an auxiliary means to find the pipe in the future). Let's take a look at the relevant content.
1、示踪线安装后随管道埋地后,在验收时应用地下管道探测仪(该仪器有点贵,但应是燃气行业的应配设施,特别是生产运营部门)来检验示踪线的完整性,原理及实用方法十分简单。
1. After the tracer line is buried with the pipeline after installation, the underground pipeline detector (which is a little expensive, but it should be an appropriate facility in the gas industry, especially the production and operation Department) is used to check the integrity of the tracer line during acceptance. The principle and practical method are very simple.
2、在非开挖工程中(定向钻作业),为了保证示踪线的完整性,示踪线的规格通常采用4.0平方的单芯铜钱,且要用双线,绑在将要拖入的燃气PE管上,在拖管时随管一同拖入。
2. In trenchless Engineering (directional drilling operation), in order to ensure the integrity of the tracer line, the specification of the tracer line is usually 4.0 square meters of single core copper coin, which should be tied to the gas PE pipe to be dragged in with two lines, and dragged in with the pipe when dragging.
3、因在查找管线用到示踪线时是依靠闭合电路中的电流来进行操作的,由于电阻问题,电流强度用随着检测点与信号发射机的距离增加而减弱,一般来说,2.5平方的单芯铜线作示踪线,其发射机的信号有效范围半径为300米(示踪线越好有效半径越大)。
3. Because the tracer wire used in the pipeline search depends on the current in the closed circuit. Due to the resistance problem, the current intensity decreases with the increase of the distance between the detection point and the signal transmitter. Generally speaking, 2.5 square single core copper wire is used as the tracer wire, and the signal effective range radius of the transmitter is 300 meters (the better the tracer wire is, the greater the effective radius is).
示踪线连续敷设检测位置可直接设置在阀门井、凝水井内,如300米内没有阀门井或其他可以检测示踪线的位置,应单独设立示踪线检测井;检测井应在竣工图上标出,以方便以后使用。
The detection position of the continuous laying of the tracer line can be directly set in the valve well and condensate well. If there is no valve well within 300 meters or other positions where the tracer line can be detected, the tracer line detection well should be set up separately; The inspection well shall be marked on the as built drawing for future use.
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管道示踪线安装不是技术含量太高的工作,要绑在燃气管道上(原则上是绑在正上方,因为它还肩负着测管道埋深的任务),在接头处要处理好,如使用专用接线套管;用锡焊等,以防受地下潮湿,土壤酸性等坏境的影响,而在接点处失去导电性。
4. The installation of pipeline tracing line is not a work with too high technical content. It should be tied to the gas pipeline (in principle, it should be tied directly above, because it also undertakes the task of measuring the buried depth of the pipeline). It should be handled well at the joint, such as using a special wiring sleeve; Tin welding is used to prevent the loss of conductivity at the contact due to the influence of underground humidity, soil acidity and other bad environments.
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