Anticorrosion layer peeling testing device based on electrochemical impedance spectrum

The invention belongs to the field of a testing device of a pipeline anticorrosion technology and discloses an anticorrosion layer peeling testing device based on an electrochemical impedance spectrum. The anticorrosion layer peeling testing device comprises an electrolytic tank group, a constant potential rectifier, a data collection and analysis system, an electrochemical work station and a voltage measuring instrument. A simulated soil solution is contained in the electrolytic tank group and is used for simulating an actual condition of peeling an anticorrosion layer of a buried steel pipeline. The data collection and analysis system is connected with the electrochemical work station to measure the electrochemical impedance spectrum in real time and carry out data processing and analysis; the performance of the anticorrosion layer is quantitatively evaluated to monitor the peeling condition of a defect hole part of the anticorrosion layer in real time. The device disclosed by the invention can effectively simulate the actual condition of peeling the anticorrosion layer of the buried steel pipeline and can monitor the cathode peeling process in real time; a test result has very good repeatability and reproducibility; the anticorrosion layer peeling testing device is simple and convenient to operate and is suitable for the cathode peeling tests and the test evaluation of the anticorrosion layers of various buried steel pipelines.