CAJ | 학술논문

介绍了某发电厂化学清洗方案的制定和清洗过程，因其水冷壁管样存在微小裂纹，且铜含量高达15%，所以弃用盐酸清洗，选用羟基乙酸+甲酸的有机酸进行化学清洗。改进了清洗工艺，先进行氨洗除铜，水冲洗彻底后再进行酸洗、漂洗和钝化，达到除铜目的，杜绝镀铜现象的发生，清洗效果优良。该工艺具有节省除盐水，省却氨洗除铜后磷酸盐清洗的步骤等优点，具有广阔的应用前景和显著的经济效益。
개소료모발전엄화학청세방안적제정화청세과정，인기수랭벽관양존재미소렬문，차동함량고체15%，소이기용염산청세，선용간기을산+갑산적유궤산진행화학청세。개진료청세공예，선진행안세제동，수충세철저후재진행산세、표세화둔화，체도제동목적，두절도동현상적발생，청세효과우량。해공예구유절성제염수，성각안세제동후린산염청세적보취등우점，구유엄활적응용전경화현저적경제효익。
The paper introduces formulation of chemical cleaning scheme and the cleaning of a power plant. Due to tiny fine cracks in the sample water-cooling tube and copper content is as high as 15%. Therefore , se-lect glycollic acid plus formic acid instead of hydrochloric acid for cleaning. The cleaning process is improved:firstly, use ammonia cleaning for copper removal and then adopt acid cleaning , rinsing and passivation after thorough water flushing to achieve the goal of decoppering and copper plating prevention. The cleaning effect turns out to be great. The process has advantages of saving desalted water and eliminating phosphate cleaning after copper removal by ammonia cleaning; it has wide application prospect and significant economical effi-ciency.