Abstract

Condenser tube tubes are widely applied in condenser in thermal power plants. Leakage often occurs in condenser tube groups due to the quality of condenser media or high serving stress. Condenser tube leakage not only brings economic losses to power stations, but even influences the safety operation of the power generation units. This paper simulates and experimentally studies the influence of wall thickness and frequency on the far field current. Experiment on ferromagnetic tube with defects detecting by eddy current has also been carried out. The result verifies the simulation conclusions. Far field current examination technique could judge and recognize the defects in ferromagnetic tube. It is a useful and effective method in defect emanation in fossil power plant

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