Water sensor and water sensor underground pipeline water leakage detection application method

Abstract

The invention provides a water sensor and a water sensor underground pipeline water leakage detection application method. The water sensor comprises a casing, a casing cover, a screw, an insulation layer, a lead, a water-swelling rubber block and a metal reed. The water sensors are connected in series through the certain-length leads with the insulation layers to form a water sensor string, the water sensor string is arranged below a pipeline and is embedded underground with the pipeline, inspection shafts with covers are arranged at certain intervals, the leads with the insulation layers at two ends of the water sensor string are fixed in the inspection shafts, during pipeline water leakage detection, a universal meter is utilized to measure a current flowing through the leads with the insulation layers in the inspection shafts, and a distance between the inspection shaft and a pipeline water leakage point can be determined according to a voltage of a universal meter cell, resistivity of the leads and a cross-sectional area of the leads.

Description

technical field [0001] The invention relates to a water sensitive sensor and its application method in underground pipeline water leakage detection. Background technique [0002] my country is a country where water resources are very scarce, and all cities in the country have adopted measures such as planned water supply and tap water price adjustment to promote water conservation. However, the leakage of underground water pipelines has not yet attracted widespread attention. Leaks from underground water pipes are imperceptible, but the damage is staggering. A large number of underground water pipes leak water all the year round, causing waste of water resources, causing huge economic losses to the country, and even causing roads and house foundations to sink, threatening the safety of people's lives and property. At present, the leakage detection methods of underground water pipes in my country mainly adopt the traditional passive maintenance method and listening method. ...

AI Technical Summary

Problems solved by technology

However, due to the difference in the concentration of the solution formed after the NaCl crystal meets water, the resistance value of the solution connecting the two resistance wires is not a fixed number, and there is a large difference in the resistance value of the resistance wire from the leakage point to the end point. It can be seen that this This method cannot accurately locate the location of the leak point

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