| 燃煤锅炉烟气中可吸入颗粒物的声凝并研究 |
| |
| 引用本文： | 王鹏,骆仲泱,徐飞,侯全辉,高翔,岑可法.燃煤锅炉烟气中可吸入颗粒物的声凝并研究[J].环境科学学报,2008,28(6):1052-1055. |
| |
| 作者姓名： | 王鹏 骆仲泱 徐飞 侯全辉 高翔 岑可法 |
| |
| 作者单位： | 浙江大学热能工程研究所,能源洁净利用国家重点实验室,杭州,310027 |
| |
| 基金项目： | 教育部科学技术研究重点项目
,
教育部科学技术研究重点项目 |
| |
| 摘 要： | 可吸人颗粒物排放控制技术是现阶段的一个研究热点.声凝并是一种新型的控制燃煤锅炉可吸人颗粒物排放的方法之一.在内壁光滑的圆筒反应器中.利用压电换能器产生行波可以对小颗粒产生凝并作用.凝并效率受到凝并时间、声强、声波频率以及烟气温度等因素的影响.在1～2.5kHz范围内,1.5kHz是较好的声波频率;在同一频率下,随着声强的增加,凝并效率会相应提高,同时能耗也增加;随着温度的升高,凝并效率也逐渐增加;对于PM2.5来说,最佳凝并时间为3.3s,凝并效率可达60%以上.
|
| 关 键 词： | 声凝并 PM2.5 小颗粒 除尘 |
| 文章编号： | 0253-2468(2008)06-1052-04 |
| 收稿时间： | 5/10/2007 1:28:38 PM |
| 修稿时间： | 2007年5月10日 |
Research on acoustic agglomeration of particles in the flow-gas of coal-fuelled power plant |
| |
| WANG Peng,LUO Zhongyang,XU Fei,HOU Quanhui,GAO Xiang and CEN Kefa.Research on acoustic agglomeration of particles in the flow-gas of coal-fuelled power plant[J].Acta Scientiae Circumstantiae,2008,28(6):1052-1055. |
| |
| Authors: | WANG Peng LUO Zhongyang XU Fei HOU Quanhui GAO Xiang and CEN Kefa |
| |
| Institution: | State Key Laboratory of Clean Energy Utilization, Institute of Thermal Power Engineering, Zhejiang University, Hangzhou 310027,State Key Laboratory of Clean Energy Utilization, Institute of Thermal Power Engineering, Zhejiang University, Hangzhou 310027,State Key Laboratory of Clean Energy Utilization, Institute of Thermal Power Engineering, Zhejiang University, Hangzhou 310027,State Key Laboratory of Clean Energy Utilization, Institute of Thermal Power Engineering, Zhejiang University, Hangzhou 310027,State Key Laboratory of Clean Energy Utilization, Institute of Thermal Power Engineering, Zhejiang University, Hangzhou 310027 and State Key Laboratory of Clean Energy Utilization, Institute of Thermal Power Engineering, Zhejiang University, Hangzhou 310027 |
| |
| Abstract: | The control of PM2.5 has become a hot topic in environmental protection technology. Acoustic agglomeration is a new method to control PM2.5 emitted from coal-fuelled power plants. Standing wave is proved to have agglomeration ability for PM2.5. In this paper, experiments was carried on to test the agglomeration ability of traveling waves in a cylinder with smooth interior. We find that the agglomeration efficiency is concerned with the agglomeration time, sound frequency and intensity, the temperature of the flow gas, and other parameters. Between 1 and 2.5 kHz, 1.5kHz is considered the best frequency. With the increase of sound intensity, the agglomeration improves. At the same time, more energy is expended. The agglomeration efficiency increases with the temperature of the flow gas. The best agglomeration time for PM2.5 is 3.3s and the efficiency can be greater than 60%. |
| |
| Keywords: | acoustic agglomeration PM2 5 fly ash dust catcher |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
