| 浸没循环撞击流反应器的压力脉动特性 |
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| 引用本文： | 张建伟,伍沅,舒安庆,徐成海.浸没循环撞击流反应器的压力脉动特性[J].化工学报,2005,56(2):266-269. |
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| 作者姓名： | 张建伟 伍沅 舒安庆 徐成海 |
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| 作者单位： | 东北大学机械工程及自动化学院，辽宁 沈阳 110003;沈阳化工学院机械工程学院，辽宁 沈阳 110142;武汉化工学院化工与制药学院，湖北 武汉 430037 ; |
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| 基金项目： | 国家自然科学基金资助项目 (20176043).~~ |
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| 摘 要： | The characteristics of pressure fluctuation in a submerged circulative impinging stream reactor (SCISR) were experimentally studied. The instantaneous signals of pressure fluctuation resulting from the turbulence in the SCISR were measured by sensors and recorded by a computer. The pressure signals at some special positions were sampled at different rotary speeds of propeller. After analyzing the signals with the Power Spectrum method, it was found that there was an inherent frequency in the dynamic pressure signals. The inherent frequencies of the point on the impinging plane were greater than 1000 Hz, so the pressure fluctuation was called high-frequency fluctuation. The fluctuation velocities with high inherent frequency resulted in a strong shear force field, which enabled the fluid to mix quickly on the micro-scale and the agglomerates of solid particles to disperse effectively.
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| 关 键 词： | 压力脉动 撞击流 频率 反应器 |
| 文章编号： | 0438-1157(2005)02-0266-04 |
| 收稿时间： | 2004-4-29 |
| 修稿时间： | 2004-6-10
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Characteristics of pressure fluctuation in submerged circulative impinging stream reactor |
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| ZHANG Jianwei,WU Yuan,SHU Anqing,XU Chenghai.Characteristics of pressure fluctuation in submerged circulative impinging stream reactor[J].Journal of Chemical Industry and Engineering(China),2005,56(2):266-269. |
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| Authors: | ZHANG Jianwei WU Yuan SHU Anqing XU Chenghai |
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| Abstract: | The characteristics of pressure fluctuation in a sub me rged circulative impinging stream reactor (SCISR) were experimentally studied.Th e instantaneous signals of pressure fluctuation resulting from the turbulence in the SCISR were measured by sensors and recorded by a computer.The pressure sign als at some special positions were sampled at different rotary speeds of propell er.After analyzing the signals with the Power Spectrum method,it was found that there was an inherent frequency in the dynamic pressure signals.The inherent fr equencies of the point on the impinging plane were greater than 1000 Hz,so the pressure fluctuation was called high-frequency fluctuation.The fluctuation velo cities with high inherent frequency resulted in a strong shear force field,whic h enabled the fluid to mix quickly on the micro-scale and the agglomerates of s olid particles to disperse effectively. |
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| Keywords: | pressure fluctuation impinging stream frequency react or |
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