Process of water flushing after chemical cleaning passivation of boiler

The invention provides a process for adding water flushing links after chemical cleaning passivation of a boiler. By increasing pH of water flushing, temperature and other conditions and adding the flushing process of drain pipes, sampling pipes and various meters, the degree-of-finish of internal surface after system pickling is ensured, acid liquid and passivation liquid remaining in a system are effectively reduced, so that the time required for the water quality to be qualified during a system start-up period is shortened, and the use amount of desalinated water and electricity during thestart-up period can reduced, so that certain economic benefits are achieved. 本发明提出了锅炉化学清洗钝化后增加水冲洗环节的工艺，通过提高水冲洗pH，温度等条件，增加疏水管，取样管及各种表计的冲洗工艺，既保证了系统酸洗后内表面的光洁度，又有效的减少了系统残存的酸液及钝化液，从而缩短系统启机期间水质合格所需时间，又能减少启机期间除盐水及电能的使用量，具有一定的经济效益。