摘要
通过某厂4t/h锅炉结垢情况的分析,针对这种硅酸盐垢为主的复合型垢制定了相应的化学清洗方案,清洗处理了厚度3-8mm的垢层,达到了去除锅炉水垢的效果,锅炉锅筒内壁洁净,并形成了一层良好的钝化膜,清洗效果达到国家规定的标准,金属腐蚀速度为2.04g/(m2h),较好满足了《锅炉化学清洗规则》规定的清洗质量要求,说明该化学清洗方法经济有效,清洗后可以保证锅炉的连续稳定运行。
By analyzing scales conditions of a plant 4t/h boiler, this paper established corresponding chemical cleaning program to compound scales mostly composed of sulphate scales. The scales of 3-8mm layer were disposed of, which achieves the effect of contaminant separation. The drum wall was clean, and a layer of good passivating film was formed. The metal corrosion rate was 2.04 g/（m2h）, which means that the cleaning effect reached the national standard and was lower than the demand specified by boiler chemical cleaning regulation. The above results show that the method is effective and it can assure the continuous stable oueration.
出处
《上海节能》
2012年第8期9-13,共5页
Shanghai Energy Saving
关键词
除垢
硅酸盐垢
化学清洗
contaminant separation
sulphate scales
chemical cleaning
