EDTA清洗工艺的改进和应用  

Improvement and application of the EDTA cleaning technology

作　　者：于志勇[1] 冯礼奎[1] 秦凯锋 

机构地区：[1]浙江省电力试验研究所,浙江杭州310014 [2]浙江电力建设总公司,浙江宁波315010

出　　处：《清洗世界》2006年第6期34-38,共5页Cleaning World

摘　　要：介绍嘉兴发电厂二期4×600 MW机组EDTA化学清洗的进行情况。针对3#机组清洗时出现的问题,逐步对EDTA清洗工艺进行改进。5#机组的实际运行表明,在EDTA清洗后增加水冲洗步骤并加入镀膜剂,清洗钝化效果好,为冲管和整套启动期间水汽品质迅速达标创造了良好条件。The EDTA washing process of the 4 × 600 MW units of Jiaxing Power Plant Ⅱ is introduced. The EDTA washing technology is improved according to the problems which appear in the washing of units 3. The improved technology is applied to unit 5. The step of water-washing is added after the EDTA washing and the filming reagent is added. The results indicate that the effects of washing and passivation are better. And it provides good conditions for the water vapor to reach the need guickly during the pipe - rushing and cycle startup.

关 键 词：化学清洗 EDTA 工艺改进 应用 

分 类 号：TK268[动力工程及工程热物理—动力机械及工程]