| 张斌，陈银银，李育敏，计建炳.新型涡流空化器的实验研究[J].轻工机械,2017,35(2):58-62 |
| 新型涡流空化器的实验研究 |
| Experimental Study on Votex Cavitation Reactor |
| |
| DOI：10.3969/j.issn.1005-2895.2017.02.012 |
| 中文关键词: 涡流空化 亚甲基蓝 紫外一可见分光光度计 羟基自由基 孔板水利空化器 |
| 英文关键词:swirling jet cavitation methylene blue ultraviolet-visible spectrophotometer hydroxyl radical orifice hydraulic cavitation |
| 基金项目: |
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| 中文摘要: |
| 目前利用空化释放出能量是充分利用能量的一种新方法，为此设计了一种新型的涡流空化器，定量分析了空化
引发?OH（羟自由基）产量与空化强度的关系。文中以亚甲基蓝作为羟自由基的捕捉剂，使用紫外一可见分光光度计间
接测定了水力空化产生的?OH产量，并利用该方法对涡流空化器空化效果进行了实验研究。分析了旋流腔直径、空化
器出液管直径和空化器进液管流速等工艺参数对自由基产量的影响。力求寻出有利于空化发生以及提高空化作用强度
的适宜空化器的设计工艺。结果表明：进液管流速越大，出液管直径越小，旋流腔直径越小，?OH摩尔浓度越大。与孔
板水力空化器对比，涡流空化器单位压降的?OH的摩尔涨度是孔板水力空化器的13. 99 - 68. 19倍，说明涡流空化器能
量利用率更高，空化效果更好。 |
| 英文摘要: |
| In view of a new method that the cavitation releases energy to make full use of the energy, a new type of vortex
cavitation was designed. The quantitative analysis of ( ?OH) production and the relationship between the cavitation
intensity by cavitation was proceeded. The methylene blue as capture agent of hydroxyl radical, the ultraviolet-visible
spectrophotometer was used to indirect determination of ( ?OH) production generated by the hydraulic cavitation, and
the experimental study of the vortex cavitation effect was carried on by the method. The influences of the vortex cavity
diameter. cavitation produced liquid pipe diameter and cavitation in liquid flow rate etc. process parameters on the free
radical production were analyzed. The appropriate design of cavitation process was looked for which benefit for cavitation
occurring and cavitation effect adapting. The results show that the liquid pipe flow rate is more rapid, the produced
liquid pipe diameter is smaller, and the vortex cavity diameter is smaller. and the concentration of ( ?OH) is greater.
Compared with the orifice hydraulic cavitation device. the ?OH molarity of vortex cavitation device is 13. 99 - 68. 19
times of the orifice hydraulic cavitation. It indicates that the vortex cavitation has higher energy utilization efficiency and
better cavitation effect. |
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