平扇形泡沫喷嘴的覆盖效率研究

朱小龙; 王德明; 韩方伟

平扇形泡沫喷嘴的覆盖效率研究

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出版历程
- 发布日期: 2015-05-19

Research on Coverage Efficiency of Foam from Flat-fan Nozzle

摘要

摘要: 降尘泡沫的本构方程服从广义宾汉流体模型，为了提高除尘泡沫对尘源的包裹效果、获得较高的泡沫利用率，对平扇喷嘴的泡沫外流场进行了数值模拟和实验验证。发现现有的平扇喷嘴两侧开口的结构对泡沫的覆盖效果造成了不利影响。为了进行定量分析，定义了有效角度和有效长度，得出了平扇喷嘴的泡沫最优入口速度为3～5 m/s。
- 平扇喷嘴 /
- 泡沫利用率 /
- 广义宾汉流体 /
- 有效长度 /
- 有效角度 /
- 泡沫 /
- 除尘
Abstract: The constitutive equation of dust suppression foam yields to the generalized Bingham fluid model. In order to improve the coverage efficiency and the utilization ratio of the foam, the out flow field of the foam from the flat-fan nozzle has been studied by means of numerical simulation and experiment. Based on this study, the opening structure on both sides of the flat-fan nozzle puts adverse effects on the coverage efficiency. The effective angle and the effective length are defined for the quantitative analysis, and the results suggest that the optimum foam velocity at the inlet of the flat-fan nozzle is 3 to 5 m/s.
- flat-fan nozzle /
- foam utilization ratio /
- generalized Bingham fluid /
- effective length /
- effective angle /
- foam /
- dust removal

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参考文献(12)

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