A deep-buried pipeline early warning detection device and a detection method

Abstract

The application discloses a deep-buried pipeline early warning detection device and a detection method in the field of deep-buried pipeline detection. The early warning detection device comprises a traction line, a detection coil group, a vertical fixing shaft and an induced electromotive force testing device. The detection coil group comprises at least three detection coils which are installed at the bottom of the traction line at equal intervals from top to bottom. The vertical fixing shaft is fixedly connected with each detection coil. The induced electromotive force testing device is connected with each detection coil through a wire. The detection coil comprises a magnetic core and a winding wire. The magnetic core is a circular ring. The winding wire is arranged along the circumference of the magnetic core in a symmetrical winding manner. The winding formed by the winding wire is distributed in a mirror image symmetry. The starting point and the ending point of the winding wire are connected with the induced electromotive force testing device. The deep-buried pipeline early warning detection device can accurately position the target pipeline below (including directly below) the coil, and plays a role in the implementation process of the test hole. The detection coil of the early warning detection device can improve the accuracy of the detection data to further realize accurate positioning.

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