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The actual experience is described in CWT application to the once-through boilers With brass tube LP heaters in China ,which shows,that the Fe and Cu corrosion products contents can be obtained not more that obtained during AVT,if the pH value and Oxygen content in feed water are strictly controlled.Futhermore,the achievements obtained during CWT applications in Chinese fossil-firecl power plants are described as Well. 介绍在备有铜合金制作的低压加热器的直流锅炉上实施给水联合处理(CWT)技术的实际经验 ,通过控制给水的 pH值和溶解氧浓度等条件 ,可使给水中的铜含量不高于全挥发性处理 (AVT)时的水平。此外还介绍我国火电厂应用CWT技术所取得的成果。建议加快推广CWT技术的步伐。 Introduced in this paper is the application of combined water treatment (CWT) to a 600MW sapercritical pressure boiler.The problems,that existed during application of all-volatile treatment (AVT)such as higher dcposit rate and more frequent chemical cleaning,have been solved,which result in higher technico-economical effects,providing reliable and practical experience for application of CWT to boilers of same kind. 介绍华能上海石洞口二厂两台 6 0 0MW超临界机组直流锅炉成功应用给水加氧、加氨联合处理 (CWT)技术的成果。该项应用成果解决了机组投运以来给水采用全挥发性处理 (AVT)存在的锅炉系统结垢速率高、酸洗周期短的问题 ,取得了较好的技术经济效益 ,为CWT技术在同类机组上的推广应用提供了切实可靠的经验 It introduced in detail about development of Japplication of water giving compound oxydren treating technology,The difference against volatility treating is its less iron discharge,so as to control pressure difference of boiler.raise operating reliability.Japan made the regulation suitable to power plant oxydren treating method.It revises JIS boiler water giving and its quality and add new standard of oxydren treating at water quality of once through boiler. 详细介绍了日本发电厂给水复合氧处理技术的应用进展情况。氧处理法与目前火电厂使用的挥发性处理法相比具有铁排出量少 ,能充分抑制锅炉压差 ,提高运行可靠性。日本制定了适用于电厂氧处理法的规程 ,对JIS日本国标的锅炉给水及水质部分进行了修改 ,并在直流炉的水质标准处加入了新的氧处理法标准
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