Abstract: In order to solve the corrosion and scaling problems of condenser′s copper tubes, aiming at the corrosion pits and sediment, the element analysis was done; several experiments, such as the reagent detection, the corrosion coupon, the silt abrasion and antiscaling, were carried out. A conclusion was obtained that the comprehensive affect of silt abrasion, the corrosion behind scaling, the bed operation condition and others led the corrosion and scaling of the copper tubes. According to the diagnosis suggestion, some corrosion slowing and antiscaling measures, such as coating film on tubes plate, water quality control and improvement of reagent adding process, were adopted; and the faults were eliminated.
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Key words: condenser, corrosion, scaling, anticorrosion, fault diagnosis