Submarine pipeline stray current detection device and detection method thereof

Abstract

The application discloses a submarine pipeline stray current detection device and a detection method thereof. The device comprises a metal frame, a traction device is installed above the upper support cross frame, a three-dimensional imaging sonar is installed above the lower support cross frame, and a mounting bottom cylinder is welded and fixed at the bottom of the lower support cross frame. A transmission cylinder is arranged in the mounting bottom cylinder, and an extension cylinder is integrally formed at the bottom of the transmission cylinder. A rotating pipe is arranged in the extension cylinder, helical guide vanes are welded and fixed outside the rotating pipe, a fixed pipe is arranged in the rotating pipe, a telescopic pipe is slidably installed in the fixed pipe, limit blocks are integrally arranged on the two sides of the telescopic pipe, a threaded column is fixedly arranged at the lower end of the telescopic pipe, and a needle electrode is installed at the bottom of the connecting rod. The device can accurately and quickly detect stray currents at different points of the pipeline without damaging the soil structure of the buried pipeline.

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