凝汽器铜管表面状态的电化学评定

Electrochemical Evaluation of Copper Tube Surface State of Condenser

针对凝汽器铜管过早腐蚀泄漏和提高铜管运行寿命的问题，利用交流阻抗、电位阶跃和线性极化等电化学方法可有效地检测新铜管耐腐蚀性、旧铜管的腐蚀损伤情况及铜管的表面处理质量，确保铜管正常运行。

In the light of premature corrosion－leakage problem of condenser copper tubes and in order to extend the operating life of copper tubes the AC impedance electric potential step and linear polarization etc electrochemical methods are used to effectively test and detect corrosion resistance of new copper tubes corrosive damage state of old copper tubes and surface treatment quality of copper tubes so as to ensure the normal operation of copper tubes．