A combined method was proposed i.e., to separate circulating water from washing ash-water and form closed circulating, make acid dipping of condenser copper pipe, add scale and corrosion inhibitor, and perform sterilization and filtration.

• 针对此问题，提出了隔断循环水与冲灰水的直接联系，将循环水系统改为闭路循环，对凝汽器铜管进行酸洗，向循环水中添加缓蚀阻垢剂、杀菌灭藻剂和增设旁流过滤系统等办法。