空心喷嘴喷淋特性实验研究

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赵亮，焦娟娟，王鹏，朱晓静，邱庆刚，沈胜强*

大连理工大学能源与动力学院，辽宁省海水淡化重点实验室，辽宁大连 116024

收稿日期:2018-11-19修回日期:2019-04-12出版日期:2019-12-22发布日期:2019-12-22
通讯作者:沈胜强

基金资助:多效蒸发海水淡化技术中的关键热科学问题;水平管降膜蒸发器离心布液喷嘴喷淋过程机理研究

Experimental investigation on spray characteristics of hollow nozzle for liquid distribution

Liang ZHAO, Juanjuan JIAO, Peng WANG, Xiaojing ZHU, Qinggang QIU, Shengqiang SHEN*

Key Laboratory of Seawater Desalination of Liaoning Province, School of Energy and Power Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China

Received:2018-11-19Revised:2019-04-12Online:2019-12-22Published:2019-12-22
Contact:shengqiang shen

摘要/Abstract

摘要： 为使大型水平管降膜多效蒸发海水淡化装置的横管降膜蒸发器均匀布液，自主设计并搭建了一套离心喷嘴喷淋特性实验台及径向喷淋密度测量装置，通过高速摄影仪拍摄的喷淋照片对喷淋外缘进行标注测量，得到喷嘴各喷淋锥角，对旋流式空心喷嘴的流量、喷淋锥角和径向喷淋密度等喷淋参数随入口压力、喷淋高度的变化规律进行实验探究分析。结果表明，流量随入口压力增加而增加，但入口压力越大，流量增长速度越缓慢；正常工况下，喷淋锥角由喷嘴出口扩张段角度决定，与喷嘴扩张角保持一致，在重力作用下出现向内的收缩圆弧液膜边；喷淋形状为规则的环形喷淋，入口压力增加使有效喷淋区域整体向中心压缩，喷淋密度峰值变大，两波峰的对称性得到改善，压力为349 kPa时，喷淋密度基本完全对称，增加喷淋高度则情况相反。根据此喷淋密度分布特点，在设计横管蒸发布液器时合理控制工况压强，根据峰谷叠加原理可有效消除无效喷淋区域。

引用本文

赵亮焦娟娟王鹏朱晓静邱庆刚沈胜强. 空心喷嘴喷淋特性实验研究[J]. 过程工程学报, 2019, 19(6): 1085-1092.
Liang ZHAO Juanjuan JIAO Peng WANG Xiaojing ZHU Qinggang QIU Shengqiang SHEN. Experimental investigation on spray characteristics of hollow nozzle for liquid distribution[J]. Chin. J. Process Eng., 2019, 19(6): 1085-1092.

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参考文献

[1]周士鹤.低温多效蒸发海水淡化系统热力性能分析和优化研究[D]. 大连：大连理工大学.2016:1-10.
[2]张猛，周帼彦，朱冬生.降膜蒸发器的研究进展[J].流体机械, 2012, 40(6):82-86
[3]陈坚, 李建中，袁丽，等.雾化特性对喷雾燃烧点火过程的影响[J].推进技术, 2017, 38(6):1318-1326
[4]Lan Z, Zhu D, Tian W, et al.Experimental study on spray characteristics of pressure-swirl nozzles in pressurizer[J].Annals of Nuclear Energy, 2014, 63(1):215-227
[5]Muhammad R, Huang Y, Zheng Z.Effect of geometric parameters on spray characteristics of pressure swirl atomizers[J].International Journal of Hydrogen Energy, 2016, 41(35):15790-15799
[6]Santolaya JL, Garcia JA, Calvo E, et al.Effects of droplet collision phenomena on the development of pressure swirl sprays[J].International Journal of Multiphase Flow, 2013, 56(10):160-171
[7]Sun Z Y, Li G X, Chen C, et al.Numerical investigation on effects of nozzle’s geometric parameters on the flow and the cavitation characteristics within injector’s nozzle for a high-pressure common-rail DI diesel engine[J].Energy Conversion and Management, 2015, 89(1):843-861
[8]Saha A, Lee JD, Basu S, et al.Breakup and coalescence characteristics of a hollow cone swirling spray[J].Physics of Fluids, 2012, 24(12):621-633
[9]Gad HM, Ibrahim IA, Abdel-baky ME.Experimental study of diesel fuel atomization performance of air blast atomizer[J].Experimental Thermal and Fluid Science, 2018, 99(12):211-218
[10]Santolaya JL, Garcia JA, Calvo E, et al. Effects of droplet collision phenomenon on the development of pressure swirl sprays [J]. International Journal of Multiphase Flow,2013,56(12):160-171[11]Tratnig A, Brenn, G. Drop size spectra in sprays from pressure-swirl atomizers[J].International Journal of Multiphase Flow, 2010, 36(5):349-363
[12]Halder M R, Dash S K, Som S K. A numerical and experimental investigation on the coefficients of discharge and the spray cone angle of a solid cone swirl nozzle [J]. Experimental Thermal & Fluid Science, 2004, 28(4):297-305.
[13]Rabe C, Malet J, Feuillebois F.Experimental investigation of water droplet binary collisions and description of outcomes with a symmetric Weber number[J].Physics of Fluids, 2010, 22(4):1-11
[14]Broniarz-Press L, W?odarczak S, Matuszak M, et al.The effect of orifice shape and the injection pressure on enhancement of the atomization process for pressure-swirl atomizers[J].Crop Protection, 2016, 82(4):65-74
[15]Radcliffe A.High Speed Aerodynamics and Jet Propulsion, Fuel Injection 9 [M]. Princeton: Princeton University Press, 1960:12-18
[16]Rizk N K, Lefebvre A H.Internal flow characteristics of simplex swirl atomizers[J].Journal of propulsion and power, 1985, 1(3):193-199