A buried tap water pipeline leakage detection device and detection method

Abstract

The invention discloses a buried tap water pipeline leak detection device, which comprises a leak detection probe buried in a water leakage detection area and a leakage detection circuit connected with the leakage detection probe, the leakage detection probe is a humidity detection probe; the leakage detection probe includes Two wires arranged in parallel and covered with an insulating layer on the outside, and a plurality of conductive points are arranged on the two wires; the leakage detection circuit is a resistance value detection circuit that detects the resistance value between the two wires, The leakage detection device has a simple structure, convenient layout and good detection effect, without any adjustment to the structure of the pipeline to be detected. The invention also discloses a leakage detection method, comprising steps: 1. Embedding of the leakage measuring head: while burying the tap water pipeline to be detected, burying the leakage measuring head in the water leakage detection area; 2. Connecting the leakage detection circuit; 3. Leakage Detection, the leak detection method has simple steps, reasonable design and no need to change the structure of the pipeline to be tested, and has high detection accuracy.

Description

technical field [0001] The invention belongs to the technical field of pipeline leakage detection, and in particular relates to a buried tap water pipeline leakage detection device and detection method. Background technique [0002] In modern buildings, water supply pipes are mostly buried in buildings, so leaks are not easy to find, and the location of leaks is also difficult to determine. Commonly used leak detection methods for water supply pipelines include the leak detection method, the water pressure method, and the resistance method. Among them, the leak listening method is to use a leak listener to stick the probe close to the ground near the pipeline when the external environment is quiet, amplify the weak sound waves of the leak, and then transmit them to the earpiece, so that people can get the information of the leak. The hearing-leaking method has high requirements on the environment and has low accuracy. The hydraulic method is to judge whether the pipeline i...

AI Technical Summary

Problems solved by technology

When the resistance method detects the buried pipeline, some of them punch holes on the ground to detect the resistivity of the punching point, but in buildings or some places, it is impossible to punch many holes at will to detect whether there is water leakage; some resistance methods are Arrange conductive electrodes inside and outside the pipeline to detect two-stage resistance. This method requires a long electrode wire to be arranged in the pipeline, and the connecting flange of the pipeline also needs to add a module through the wire, so it is necessary to change the internal structure of the pipeline and The structure of the connecting flange

To sum up, the existing water leakage detection methods of water supply pipelines have problems such as changing the pipeline structure, inconvenient detection, and low detection accuracy to varying degrees.

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