Parameter optimization of longitudinal swirl nozzle based on CFD

ZHANG Zepeng; PAN Yue; YANG Fan; MA Hao

Safety in Coal Mines > 2021 > 52(2): 131-134.

ZHANG Zepeng, PAN Yue, YANG Fan, MA Hao. Parameter optimization of longitudinal swirl nozzle based on CFD[J]. Safety in Coal Mines, 2021, 52(2): 131-134.

Citation:

ZHANG Zepeng, PAN Yue, YANG Fan, MA Hao. Parameter optimization of longitudinal swirl nozzle based on CFD[J]. Safety in Coal Mines, 2021, 52(2): 131-134.

Citation:

ZHANG Zepeng, PAN Yue, YANG Fan, MA Hao. Parameter optimization of longitudinal swirl nozzle based on CFD[J]. Safety in Coal Mines, 2021, 52(2): 131-134.

Parameter optimization of longitudinal swirl nozzle based on CFD

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Published Date: February 19, 2021

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Abstract

Abstract

In order to solve the problems of high water consumption and poor atomization effect of mine swirl nozzles, the relevant parameters that affect the spray effect are proposed: the spiral angle of the swirl core, the length ratio of the nozzle contraction section to the swirl section. CFD fluid mechanics and VOF multiphase flow theory are used to numerically analyze the flow field inside the nozzle. The simulation results show that the spiral angle of the swirl core has a great influence on the nozzle exit speed and turbulent flow energy. Properly increasing the spiral angle according to the needs is beneficial to improve the atomization effect. The nozzle exit speed increase is the most obvious when the inlet pressure is the same at 40°; reasonable selection of the length ratio of the contraction section to the swirl section can effectively improve the atomizing ability of the nozzle. When the length of the two is equal, the peak of the horizontal center velocity of the outlet is located at the axis, the water outflow is uniform, and the spray effect is better.
- spray dustfall,
- swirl nozzle,
- swirl core,
- atomizing ability of nozzle,
- numerical simulation

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References

[1]	程卫民,周刚,陈连军,等.我国煤矿粉尘防治理论与技术20年研究进展及展望[J].煤炭科学技术,2020, 48(2):1-20. CHENG Weimin, ZHOU Gang, CHEN Lianjun, et al. Research progress and prospect of dust control theory and technology in China’s coal mines in the past 20 years[J]. Coal Science and Technology, 2020, 48(2): 1-20.
[2]	孙峰.大断面煤巷掘进工作面综掘机高压外喷雾降尘技术及装备的应用研究[J].矿业安全与环保,2019, 46(3):52-56. SUN Feng. Applied research of the dust removal technology and equipment for high pressure external spray in the large section coal lane[J]. Mining Safety & Environmental Protection, 2019, 46(3): 52-56.
[3]	王娇娇.煤矿采煤作业粉尘检测及喷雾降尘技术研究[D].西安:西安科技大学,2018.
[4]	李明忠,赵国瑞.基于有限元仿真分析的高压雾化喷嘴设计及参数优化[J].煤炭学报,2015,40(S1):279. LI Mingzhong, ZHAO Guorui. High pressure spray nozzle design and parameter optimization based on finite element simulation analysis[J]. Journal of China Coal Society, 2015, 40(S1): 279.
[5]	赵金国,何伟.具有旋芯的高效雾化喷嘴仿真和实验研究[J].机械设计与制造,2017(3):137-140. ZHAO Jinguo, HE Wei. Simulation and experimental research on highly efficient atomization nozzle with a core[J]. Machinery Design & Manufacture, 2017(3): 137-140.
[6]	丁小勇.煤矿喷雾降尘雾化机理及仿真研究[D].太原:中北大学,2015.
[7]	郑磊.综采工作面高压喷雾降尘技术参数确定方法[J].煤炭科学技术,2014,42(11):55-58. ZHENG Lei. Technical parameters determination method of high pressure spraying for dust suppression in fully-mechanized coal mining face[J]. Coal Science and Technology, 2014, 42(11): 55-58.
[8]	刘鲁兴,邓松圣,管金发,等.不同入口形状中心体喷嘴诱发空化的模拟[J].煤矿机械,2018,39(12):47. LIU Luxing, DENG Songsheng, GUAN Jinfa, et al. Flow field simulation of cavitation induced by central body nozzles with different inlet shapes[J]. Coal Mine Machinery, 2018, 39(12): 47.
[9]	徐明,刘涛.综掘工作面高压喷雾降尘技术优化及应用[J].煤矿安全,2015,46(11):132-135. XU Ming, LIU Tao. Optimization and application on high pressure spraying dust removal at fully mechanized working face[J]. Safety in Coal Mines, 2015, 46(11): 132-135.
[10]	苗懂艳,高贵军.喷嘴螺旋倾角对雾化性能影响的试验研究[J].煤矿安全,2020,51(4):14-17. MIAO Dongyan, GAO Guijun. Experimental study on influence of nozzle spiral inclination angle on atomization performance[J]. Safety in Coal Mines, 2020, 51(4): 14-17.
[11]	杨瑄.内混式空气雾化喷嘴内部两相流特性数值模拟研究[D].西安:长安大学,2018.
[12]	王文靖,蒋仲安,陈举师,等.不同结构喷嘴内外流场的数值模拟分析[J].煤矿安全,2013,44(11):162. WANG Wenjing, JIANG Zhongan, CHEN Jushi, et al. Numerical simulation analysis of inside and outside fields for nozzles with different structures[J]. Safety in Coal Mines, 2013, 44(11): 162.
[13]	袁辉,徐锐,陈本良,等.气水两相流喷嘴特征结构对雾化性能影响的实验研究[J].煤矿机械,2018,39(2):40-43. YUAN Hui, XU Rui, CHEN Benliang, et al. Experimental study on influence of structure to atomization performance of gas-liquid two-phase flow nozzle[J]. Coal Mine Machinery, 2018, 39(2): 40-43.
[14]	陈琛,郭增乐,白淑敏.旋流芯式喷嘴喷雾降尘数值模拟与现场应用[J].煤矿安全,2019,50(5):186. CHEN Chen, GUO Zengle, BAI Shumin. Numerical simulation and field application of swirling-cored nozzle for dust suppression[J]. Safety in Coal Mines, 2019, 50(5): 186.

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[2]	WANG Fei, REN Peng, YAN Jingjing, GAO Yabin, LI Ziwen, HE Zhihong, LIU Zhenming. Numerical simulation and experimental research on ultrasonic atomization dust suppression device[J]. Safety in Coal Mines, 2021, 52(12): 29-34.
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