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大同第二发电厂１号机组凝汽器铜管运行中存在着端差大、真空低的老大难问题。通过小型试验，确定了对凝汽器铜管进行氨基磺磺酸酸洗、过硫酸钾氧化成膜的技术方案。凝汽器铜管成膜后，经Ｘ光电子能谱仪对膜质检测，证明已形成了性能良好的保护膜。机组运行后，凝汽器端差由１３０℃降至４．７７℃，达到了华北电力集团公司考核规定的优秀等级（５℃），煤耗可降低１４８１ｇ／（ｋＷ·ｈ），机组的安全性和经济性大为提高。
Datong second power plant unit No. 1 condenser copper pipe running there is a large terminal, low vacuum, the crux of the problem. Through small test, the technical scheme of sulfonamid acid pickling and potassium persulfate oxidation filming on the condenser copper tube was determined. Condenser copper film, the X-ray photoelectron spectrometer on the film quality testing, to prove that has formed a good protective film. After the operation of the unit, the condenser terminal temperature dropped from 130 ℃ to 4.77 ℃, which reached the excellent level (5 ℃) determined by North China Electric Power Corporation and the coal consumption could be reduced by 1481g / (kW · h) Unit safety and economic greatly improved.