The city's water supply network, as the city's "blood", carrying the public life, work, industrial production and other aspects of demand. However, many places in China's water supply network is suffering from the pain of leakage, the reason behind what is it? Today, let us unravel this mystery, to see the leakage of water supply pipe network "behind the scenes" what.
1. Pipe network material reasons
Pipe network materials should not be ignored. A wide variety of water pipe materials on the market, quality varies. China's water supply network has a long history of construction, some of the old pipe network is close to or over its service life. These old pipe networks, especially gray cast iron pipe, due to long-term use, the inner cavity rust, sediment increase, resulting in frequent blockage and leakage. In addition, breakage during construction also accelerates the rusting and strength reduction of the pipes, further increasing the risk of leakage.
2. Pipeline interface reasons
Pipe interface problems are also an important cause of leakage. In the design of water supply pipe network, there are many pipe interfaces, and the larger the interface, the higher the leakage rate. Temperature changes, terrain settlement and other factors may lead to pipeline expansion and loosening of the joints, thus triggering water seepage problems. At the same time, improper handling of interfaces during construction, such as silicone ring installation is not in place, asbestos cement knocking is not dense, etc., will also increase the risk of water leakage of pipe fittings interfaces running.
3. Project leakage caused by barbaric construction
Barbaric construction and improper stacking of pipes is also a common cause of engineering leakage. Some construction units in the construction process only the pursuit of progress, ignoring the pipeline safety, resulting in corrosion of the pipe network and water pollution. At the same time, the lack of attention to soil protection and backfilling during construction near pipelines, as well as operations such as piling, pile pulling, and descending water may cause damage to water pipes. In addition, acts such as stacking goods indiscriminately above the pipeline and establishing temporary buildings may also lead to pipe bursting due to pressure fracture and disconnection of the pipeline.
How to detect pipeline leaks
The use of water pipe pipeline leak detector can effectively find out the leakage point, pipeline leak detector its working principle is the pressure of water pipe leakage pressure water from the pipeline broken mouth rushed out, and the pipe wall friction produced by the sound vibration and other additional vibration caused by the pipeline ground above, with the pipeline leak detector on the road surface for detection. The pipeline leak detector is used to detect the leak on the road surface and find out the leakage point.
Generally speaking, the basic detection method is to connect the pipeline leak detector host, headphones, sensors. Turn on the switch, put on the headset, place the sensor on the road above the pipeline, place it step by step according to the length of the pace, listen to it step by step, the closer the leak, the stronger the signal, the farther away from the leak, the weaker the signal, and by comparing the strength of the signal between different points to achieve the purpose of detecting the leak. Therefore, when we use pipeline leak detector, it is meaningless to listen to the leakage signal at one point alone, we have to compare the leakage signal at many points repeatedly, and compare the place where the sound vibration is bigger is the leakage point, of course, we also have to consider a lot of other additional factors, for example, the direction of the leakage point of the breakage port, because the pipeline is round, if the side leakage, it may be bigger in the side of the road surface above the pipeline. Pipeline above the side of the road, rather than being pipeline above the road, so for the location of the pipeline to be clear, in addition to the tee, bends, water pressure, depth of burial, buried layer and so on will have an impact on the detection of these to be taken into account.
Water supply pipe network leakage for a variety of reasons, including pipe network material problems, pipe interface problems, brutal construction and improper stacking of pipes and so on. In order to solve this problem, we need to start from many aspects, strengthen the construction and management of the pipe network, improve the quality of construction, and ensure the safety of water supply. Only in this way can we make the city's "bloodline" more unimpeded and provide citizens with a better living and working environment.
