300MW燃煤锅炉机组超细颗粒聚并器的实验研究

被引：18

作者：

陈冬林 ^{[1
]}

吴康 ^{[1
]}

米建春 ^{[2
]}

唐斌 ^{[3
]}

冯伟 ^{[3
]}

贺善军 ^{[3
]}

机构：

[1] 长沙理工大学能源与动力工程学院

[2] 北京大学湍流与复杂系统国家重点实验室

[3] 大唐耒阳发电厂

来源：

环境工程学报 | 2015年 / 9卷 / 04期

关键词：

超细颗粒; 聚并器; 燃煤锅炉; 粒径分布; 除尘;

D O I：

暂无

中图分类号：

X701 [废气的处理与利用];

学科分类号：

083001 [环境科学];

摘要：

为了解决燃煤锅炉烟气中超细颗粒难以脱除的问题,基于流体动力学原理设计了一种超细颗粒聚并器,并在300 MW燃煤锅炉机组电除尘器的前置烟道中进行了实验研究。结果表明,聚并器内部存在超细颗粒之间以及超细颗粒与大颗粒之间的相互聚集行为,从而使超细颗粒数量显著减少。例如,对于粒径在2.65和10.48μm以下的颗粒,其体积比例在聚并器出口分别减少了56.7%和62.3%,在电除尘器出口的粉尘浓度减少了26.34 mg/Nm3,这表明,基于流体动力学原理的聚并器对超细颗粒的聚并作用明显,具有良好的应用前景。

引用

页码：1926 / 1930

页数：5

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