Pipeline leakage acoustic emission detection sensor - Database & Sql Blog Articles

Pipeline leakage accidents occur frequently, which not only causes huge economic losses, but also causes serious pollution of the environment. Therefore, how to detect accidents in a timely and accurate manner and accurately locate the location where the leakage occurs is the main problem facing pipeline leakage monitoring. The main feature of fluid leakage is the formation of a multi-phase jet at the leak, interacting with the pipe, forming stress waves on the pipe wall, and collecting and analyzing these acoustic emission signals caused by the leakage through the instrument, so that the leakage and Its position is judged. According to different pipe diameter, material, thickness, etc., a 30KHz acoustic emission sensor is arranged at a certain distance to pressurize the pipeline and keep the liquid in the pipeline stable. The collected signal is amplified and filtered, and then analyzed by system data. Complete the location of the leak location. The advantages are as follows: 1. For buried pipelines, it is not necessary to excavate the pipeline as a whole, only need to dig a hole in the location of the sensor layout, and then excavate the determined leakage position. 2, high detection efficiency, can detect hundreds of meters of pipeline at a time, can detect 2-3 kilometers a day. 3. It is suitable for the detection of underground pipelines in residential areas, factory areas, buildings and crossing roads and railways. 4. Applicable to the leak detection of various oil, gas and water underground pipelines. Acoustic emission technology has been widely used in the detection of pipeline leakage, to determine the location of the leakage point, as a detection technology of pipeline leakage, its speed, low cost and strong environmental adaptability.