| 300 MW燃煤锅炉机组超细颗粒聚并器的实验研究 |
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| 引用本文： | 陈冬林, 吴康, 米建春, 唐斌, 冯伟, 贺善军. 300 MW燃煤锅炉机组超细颗粒聚并器的实验研究[J]. 环境工程学报, 2015, 9(4): 1926-1930. doi: 10.12030/j.cjee.20150466 |
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| 作者姓名： | 陈冬林 吴康 米建春 唐斌 冯伟 贺善军 |
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| 作者单位： | 1.长沙理工大学能源与动力工程学院, 长沙 410004; 2.北京大学湍流与复杂系统国家重点实验室, 北京 100871; 3.大唐耒阳发电厂, 耒阳 421800 |
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| 基金项目： | 国家自然科学基金资助项目(11072005) 湖南大唐公司科技攻关项目(3050402-2069) |
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| 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10.48 μm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。
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| 关 键 词： | 超细颗粒 聚并器 燃煤锅炉 粒径分布 除尘 |
| 收稿时间： | 2014-05-22 |
Experimental study of ultrafine particle agglomerator installed on a 300 MW PC-fired boiler |
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| Chen Donglin, Wu Kang, Mi Jianchun, Tang Bin, Feng Wei, He Shanjun. Experimental study of ultrafine particle agglomerator installed on a 300 MW PC-fired boiler[J]. Chinese Journal of Environmental Engineering, 2015, 9(4): 1926-1930. doi: 10.12030/j.cjee.20150466 |
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| Authors: | Chen Donglin Wu Kang Mi Jianchun Tang Bin Feng Wei He Shanjun |
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| Affiliation: | 1.School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410004, China; 2.State Key Laboratory for Turbulence and Complex System, Peking University, Beijing 100871, China; 3.Leiyang Power Plant, Leiyang 421800, China |
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| Abstract: | In order to solve the problem of removing ultrafine particles from flue gas of PC-fired boilers,an agglomerator,which was designed based on the principles of fluid dynamics,was installed in the flue gas duct in front of ESP of a 300 MW PC-fired boiler and in situ testing was conducted.The tested results show that some ultrafine particles bond together and some other attach to larger particles in the agglomerator and therefore,the ultrafine particles remarkably decrease at the outlet of the agglomerator.For example,the particles with diameters of less than 2.65 μm and 10.48 μm decreased by 56.7% and 62.3%,respectively and the dust emission concentration was reduced 26.34mg/Nm3 at the outlet of the ESP.This means that the fluid dynamics based agglomerator has a promising future. |
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| Keywords: | ultrafine particles agglomerator PC-fired boiler particle size distribution dust removal |
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