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最近我们在国外考察管道铺设时,走访了某自来水公司。该公司所用的管材,有铸铁管、钢筋混凝土压力管和石棉水泥管。当管线漏水时,要正确地找到地下管线的漏水点在过去是十分困难的。为了克服这个困难,该公司最近引进了一台漏水探测仪。探测效果甚好。仪器的工作原理是声音测量。当压力水从破裂口漏出时,会产生一种声音。声音沿管子朝两个相反方向传播。声音的传播速度是不变的。操作时只要把两只与仪器相连的传感器放在地面上的管道配件上,如阀门、
Recently we visited a water company when we visited the pipelines abroad. Pipes used by the company include cast iron pipes, reinforced concrete pressure pipes and asbestos cement pipes. When the pipeline leaks, it is very difficult to correctly find the leak point of the underground pipeline. To overcome this difficulty, the company recently introduced a leak detector. The detection effect is very good. The working principle of the instrument is sound measurement. When pressure water leaks from the rupture port, a sound is produced. The sound travels in two opposite directions along the tube. The speed of sound is constant. When operating, put two sensors connected to the instrument on the pipe fittings on the ground, such as valves,