In-ground type tap water pipeline leak detection device and detection method

Abstract

The invention discloses an in-ground type tap water pipeline leak detection device. The in-ground type tap water pipeline leak detection device comprises a leak measuring head which is buried inside a water leak detection area and a leak detection circuit which is connected with the leak measuring head; the leak detection head is a humidity detection measuring head; the leak measuring head comprises two leads which are arranged in a parallel mode; insulating layers cover external sides of the leads; a plurality of conductive points are distributed on the two leads; the leak detection circuit is a resistance value detection circuit which detects a resistance value between the two leads. The in-ground type tap water pipeline leak detection device has the advantages that the structure is simple, the distribution is simple and convenient, the detection effect is good, and a structure of a to-be-detected pipeline is not required to be adjusted. The invention also discloses a leak detection method. The lead detection method comprises the following steps of a first step, burying the leak measuring head and burying the leak measuring head in the water leak detection area when a to-be-detected tap water pipeline is buried; a second step, connecting the leak detection circuit; a third step, performing water leak detection. The in-ground type tap water pipeline leak detection device has the advantages that the steps are simple, the design is reasonable, the structure of the to-be-detected pipeline is not required to be changed, and the detection accuracy is high.

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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