| 旋芯雾化喷嘴仿真与实验研究 |
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| 引用本文： | 羡学磊,马建琴,董海斌,刘连喜,盛彦锋,凌宗余. 旋芯雾化喷嘴仿真与实验研究[J]. 消防科学与技术, 2020, 39(12): 1709-1712 |
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| 作者姓名： | 羡学磊 马建琴 董海斌 刘连喜 盛彦锋 凌宗余 |
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| 作者单位： | 1. 应急管理部天津消防研究所，天津300381；2. 安徽蓝众机电设备有限公司，安徽合肥230031 |
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| 基金项目： | 应急管理部天津消防研究所基科费项目“固定灭火系统灭火技术及标准动态研究”（2018SJ15) |
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| 摘 要： | 为研究旋芯雾化喷嘴的喷放特性，通过建模仿真了单孔旋芯雾化喷嘴内流场及外流场，研究分析了内流场的雾化机理及外流场的雾滴分布特性，并结合实际喷放验证了仿真的准确性。研究表明：旋芯喷嘴喷放过程中能大幅度提高液体喷放速度，并在喷口处形成空穴，显著提高雾化效率；该喷嘴在低压下即可实现不大于80 μm 粒径的雾化，且粒径分布均匀。
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| 关 键 词： | 旋芯 雾化喷嘴 仿真 |
Simulation and experimental study on rotary core atomizing nozzle |
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| XIAN Xue-lei,MA Jian-qin,DONG Hai-bin,LIU Lian-xi,SHENG Yan-feng,LING Zong-yu. Simulation and experimental study on rotary core atomizing nozzle[J]. Fire Science and Technology, 2020, 39(12): 1709-1712 |
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| Authors: | XIAN Xue-lei MA Jian-qin DONG Hai-bin LIU Lian-xi SHENG Yan-feng LING Zong-yu |
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| Affiliation: | 1.Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381,China; 2. Anhui L.Z Electromechanical Equipment Co., Ltd., Anhui Hefei 230031,China |
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| Abstract: | In order to studythe spraying characteristics of a single- hole rotary core atomizing nozzle,the flow field and outflow field of the single-hole rotary core atomizingnozzle were simulated by establishing the numerical model, and the atomizing mechanismof the internal flow field and the distribution characteristics of the dropletsin the outflow field were analyzed. The accuracy of the simulation was verifiedcombining with the actual spraying. The results showed that the liquiddischarge velocity can be greatly increased during the discharge process of therotary core nozzle, and a hole can be formed at the nozzle, which cansignificantly improve the atomization efficiency. At low pressure, the nozzlecan atomize water with a particle size of no more than 80 μm with uniformparticle size distribution. |
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| Keywords: | rotary core atomizing nozzle simulation |
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