Water leakage detection method for drainage pipeline

• Main Authors: CHEN RUIJIE, GENG HONGHUI, LIU PING, LIN ZHIQING, LI WEIGAN, ZHOU MINGWEN, REN JIANPING, XU WEI, LI ZHENGTANG, CHEN HUIBIAO, AN PINGLI
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2021
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; PIPE-LINE SYSTEMS; PIPE-LINES; STORING OF DISTRIBUTING GASES OR LIQUIDS; WEAPONS

The invention discloses a water leakage detection method for a drainage pipeline. The water leakage detection method comprises the following steps that S1, a power supply positive electrode and a power supply negative electrode are placed in the drainage pipeline; S2, a plurality of cables are arranged right above the drainage pipeline at intervals in the direction parallel to the drainage pipeline, and a plurality of measuring electrodes are further arranged on each cable at intervals; S3, direct current is supplied to the drainage pipeline through the power supply positive electrode and the power supply negative electrode; S4, potential difference data of each measuring electrode is measured; and S5, a two-dimensional potential difference contour map is drawn according to the potential difference data and the position coordinates of the measuring electrodes, and the position of a water leakage point of the drainage pipeline is determined according to the map characteristics of the two-dimensional potential