Detecting system and method for leakage of water supply pipeline of urban underground pipe gallery

Abstract

The invention provides a detecting system and method for leakage of a water supply pipeline of an urban underground pipe gallery. The detecting system comprises a head end pressure detection module, a tail end pressure detection module, acoustic detection modules and an upper computer, wherein the head end pressure detection module and the tail end pressure detection module are located at the head end and the tail end of the water supply pipeline correspondingly, are of the same structure and are each provided with a pressure sensor and a real-time data acquisition device in sequence; and the acoustic detection modules and the upper computer are distributed between the head end and the tail end of the water supply pipeline. The acoustic detection modules are used for detecting acoustic waves of water current in the water supply pipeline; the upper computer is used for conducting rough positioning according to declining inflection points generated by negative pressure waves in the water supply pipeline and obtained through the head end pressure detection module and the tail end pressure detection module, and for conducting accurate positioning through the acoustic waves detected by the acoustic detection modules. According to the detecting system and method for leakage of the water supply pipeline of the urban underground pipe gallery, the pressure sensors are firstly utilized for rough positioning for leakage points, then acoustic sensors are utilized for conducting accurate positioning, and fast positioning and accurate alarming for leakage of the water supply pipeline of the urban underground pipe gallery are achieved accordingly.

Description

technical field [0001] The invention belongs to the field of operation and maintenance of municipal public facilities, and in particular relates to a leakage detection system and method for water supply pipelines in urban underground pipe galleries. Background technique [0002] In recent years, the construction of urban underground utility corridors has become a major livelihood and social security project at the national level, which is directly related to the stability and development of the economy and society. With the continuous advancement of my country's urbanization process, the construction and maintenance of pipeline corridors are faced with practical problems such as complex pipeline management, difficult to accurately detect pipeline faults, and high maintenance costs. Therefore, multiple media pipelines (such as water supply, gas, drainage, electricity, oil pipelines, etc.) are integrated into the urban underground comprehensive pipe gallery for effective monit...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a leak detection system and method for water supply pipes in urban underground pipe galleries, so as to solve the technical problem that the leakage point location efficiency of the existing water supply pipe leakage detection methods is not high, and to realize the leakage detection of water supply pipes in urban underground pipe galleries. Precise alarm and fast positioning

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