| 水力喷射空气旋流器喷孔分布优化 |
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| 引用本文： | 程治良,全学军,代黎,晏云鹏,赵清华.水力喷射空气旋流器喷孔分布优化[J].化工学报,2013,64(9):3182-3188. |
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| 作者姓名： | 程治良 全学军 代黎 晏云鹏 赵清华 |
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| 作者单位： | 重庆理工大学化学化工学院, 重庆 400054 |
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| 基金项目： | 国家自然科学基金项目，supported by the National Natural Science Foundation of China |
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| 摘 要： | 为了进一步提高水力喷射空气旋流器(WSA)的传质性能,采用理论分析与实验相结合的方法,对其喷孔分布进行了优化研究。提出了基于同层相邻喷孔液相射流边界层相交于中心排气管表面的临界孔间距lc的概念及其计算方法,实验考察了喷孔排列方式和喷孔间距对WSA脱氨传质效果的影响。研究表明,在传质性能上,WSA的射流喷孔按正方形排列优于三角形排列;喷孔间距对脱氨传质效率有明显影响,存在一个较优取值,其值约等于1.28lc;从上往下到中心排气管出口处计算,侧壁开孔区长度应该占中心排气管长度的78%。研究结果为设计具有良好传质性能的WSA提供了依据。
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| 关 键 词： | 水力喷射空气旋流器 射流 喷孔分布 气液传质 废水脱氨 |
| 收稿时间： | 2013-01-21 |
| 修稿时间： | 2013-02-22 |
Optimization of spray hole distribution in water-sparged aerocyclone |
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| CHENG Zhiliang
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QUAN Xuejun
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DAI Li
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YAN Yunpeng
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ZHAO Qinghua.Optimization of spray hole distribution in water-sparged aerocyclone[J].Journal of Chemical Industry and Engineering(China),2013,64(9):3182-3188. |
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| Authors: | CHENG Zhiliang QUAN Xuejun DAI Li YAN Yunpeng ZHAO Qinghua |
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| Affiliation: | College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China |
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| Abstract: | Water-sparged aerocyclone(WSA)is a new type of air stripping equipment with high efficiency for ammonia removal.In order to improve its mass transfer performance and establish design principles,spray hole distribution of WSA was optimized by means of theoretical analysis and experimental method.A new concept,critical distance of spray holes,lc,and its calculation formula were put forward.The results show that the WSA with square arrangement of spray holes exhibits higher mass transfer efficiency than that with triangle arrangement of spray holes in air stripping of ammonia.The distance between adjacent spray holes of the WSA has obvious effect on volumetric mass transfer coefficient.The optimal distance is about 1.28lc and the perforation area is about 78% of the central tube height in the WSA.These results could be used as a guide for the design of WSA with good mass transfer performance. |
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| Keywords: | water-sparged aerocyclone jet spray hole distribution gas-liquid mass transfer air stripping of ammonia |
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