作者针对铜质蒸汽冷凝器严重腐蚀问题 ,从腐蚀形态、腐蚀介质、沉积物、运行工况、工艺操作等几方面进行了分析 ,认为腐蚀形态主要是点蚀和脱合金腐蚀 ;对腐蚀介质和沉积物分析认为 :大量的NO3 -、氨、投加的液氯杀菌剂、生物粘泥中存在的大量硫酸盐还原菌 ,均加速或导致设备的腐蚀 ;循环水侧低流速加速了污垢在管内的沉积 ;手动间隙式加药造成高加药量下短期低浓度腐蚀。针对上述原因分析 ,阐述了所应采取的防护措施。经几个月的运行后 ,对铜质蒸汽冷凝器抽管检查 ,发现腐蚀明显得到抑制 Aiming at the serious corrosion problem of copper steam condenser, the author analyzed the corrosion morphology, corrosive media, sediment, operating conditions, process operation and other aspects, that the corrosion morphology is mainly pitting and decalloying corrosion; the corrosive medium and Sediment analysis shows that a large amount of NO3-, ammonia, added liquid chlorine bactericide and a large amount of sulfate-reducing bacteria present in biological slimes accelerate or cause corrosion of the equipment; the low flow rate on the circulating water side accelerates the fouling in the pipe Of the deposition; manual gap dosing caused by high doses of short-term low concentrations of corrosion. In view of the above reasons analysis, elaborated the protective measures that should be taken. After several months of operation, the copper vapor condenser was evacuated for inspection and found that corrosion was significantly suppressed