Device for detecting leakage points of underground pipeline and method thereof

Abstract

The invention provides a device for detecting leakage points of an underground pipeline and the method thereof. The device for detecting leakage points of an underground pipeline comprises a shell and a functional circuit positioned in the shell, wherein the functional circuit comprises a digital signal processor and a differential-type acoustoelectric sensor probe; the digital signal processor is connected with a man-machine control circuit, a display circuit and a peripheral circuit; the differential-type acounstoelectric sensor probe is connected with the digital signal processor through a signal modulating circuit, detects vibrating signals generated by leakage points of the underground pipeline and transmits the signals to the digital signal processor; and after the direction of the leakage points is confirmed, the scope of the leakage points is confirmed step by step by detecting and comparing signal characteristics for a plurality of times. The device for detecting leakage points of an underground pipeline and the method thereof can be used for detecting the leakage points of the underground pipeline under the conditions of not removing covering earth and being not influenced by outside noises and other factors, and conveniently and accurately check the leakage points of the underground water or gas pipeline and the positions of the leakage points by directly detecting the land above the pipeline, and have the advantages of firm structure, stable performance, durability and simplicity in operation.

Description

technical field [0001] The invention relates to the technical field of acoustic-electric sensors, in particular to a device and method for detecting leakage points of groundwater and gas pipelines based on coil-type acoustic-electric sensors. Background technique [0002] Ground water and gas pipelines have been widely used in today's urban infrastructure, and occupy an extremely important position in the country's economic development and people's production and life. However, due to its concealment, if the pipeline is damaged or leaked, it is difficult to observe it on the ground, which will cause serious waste of resources, seriously affect people's production and life, and even cause safety hazards. The serious consequences of pipeline leakage have attracted the attention of all walks of life, so a group of "leakage workers" specializing in groundwater and gas pipelines have emerged. However, this job requires too much experience of the staff, and the working hours can ...

AI Technical Summary

Problems solved by technology

[0003] In the existing research results, the detection method of groundwater and gas pipeline leakage points is mainly based on simple physical listening sticks, which requires too much experience and hearing of the staff, and the working hours can only be limited to late night when the noise is relatively small. It will affect the eardrum and physical health of the staff for a long time; therefore, it is necessary to design a simple and practical detection method with low cost, which is not affected by working hours and external noise, and can be detected quickly without digging and covering the soil. , Accurately detect leak points

Images