高级搜索

锥度对旋风除尘器主要性能的影响

,  ,  ,  , 

downloadPDF

上一篇

下一篇

张建平, 徐达成, 车鹏, 任建兴, 潘卫国. 锥度对旋风除尘器主要性能的影响[J]. 环境工程学报, 2016, 10(5): 2507-2512. doi: 10.12030/j.cjee.201410186
引用本文: 张建平, 徐达成, 车鹏, 任建兴, 潘卫国. 锥度对旋风除尘器主要性能的影响[J]. 环境工程学报, 2016, 10(5): 2507-2512. doi: 10.12030/j.cjee.201410186
shu
Zhang Jianping, Xu Dacheng, Che Peng, Ren Jianxing, Pan Weiguo. Influences of taper on main performances of cyclone separator[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2507-2512. doi: 10.12030/j.cjee.201410186
Citation: Zhang Jianping, Xu Dacheng, Che Peng, Ren Jianxing, Pan Weiguo. Influences of taper on main performances of cyclone separator[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2507-2512. doi: 10.12030/j.cjee.201410186
shu

锥度对旋风除尘器主要性能的影响

  • 1.

    上海电力学院能源与机械工程学院, 上海 200090

  • 2.

    上海市电力材料防护与新材料重点实验室, 上海 200090

  • 基金项目:

    国家自然科学基金资助项目(11572187)

    上海市教育委员会科研创新项目(14ZZ154)

    上海市科学技术委员会项目(15110501000,14DZ2261000)

    上海市联盟计划项目(LM201217)

  • 中图分类号: X701

Influences of taper on main performances of cyclone separator

  • 1.

    School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China

  • 2.

    Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai 200090, China

  • Fund Project:

HTML全文

  • 摘要: 为了提高旋风除尘器的分离效率,研究了锥度对旋风除尘器主要性能的影响,建立了气体流场和颗粒动力场的理论模型,并应用SIMPLEC 算法对不同锥度下旋风除尘器内部的总压、切速度、颗粒运动轨迹以及分离效率进行了数值模拟。数值结果表明:旋风除尘器内部的总压和切速度均基本呈轴对称分布,沿半径方向,总压呈非线性增大趋势,而切速度呈"驼峰"分布;通过减小锥度降低了总压和切速度,缩短了颗粒的停留时间,从而提高了分离效率,为旋风除尘器的结构优化设计、提高分离性能提供参考。
    Abstract: In order to improve the separation efficiency of a cyclone separator, the effects of taper on the primary performance of the cyclone separator were studied. A theoretical model of gas-flow and particle-dynamics fields was established, and a SIMPLEC algorithm was employed to simulate the total pressure, tangential velocity, particle trajectory, and separation efficiency with different tapers. The numerical results indicate that both the total pressure and the tangential velocity in the cyclone separator approximately present the axial distribution, and that the total pressure shows a non-linear, increasing trend in the radius direction. The distribution of the tangential velocity was in the shape of a "hump". The decrease of the taper resulted in the reduction of total pressure, tangential velocity, and shortening of the residence time of particles, which can improve separation efficiency. All the above results provide a reference for optimal design of the structure of the cyclone separator, and for enhancement of separation performance.
  • [1] 秦跃平, 张苗苗, 崔丽洁, 等. 综掘工作面粉尘运移的数值模拟及压风分流降尘方式研究. 北京科技大学学报, 2011, 33(7): 790-794 Qin Yueping, Zhang Miaomiao, Cui Lijie, et al. Numerical simulation of dust migration and study on dust removal modes with the forced ventilation shunt in a fully mechanized workface. Journal of University of Science and Technology Beijing, 2011, 33(7): 790-794(in Chinese)
    [2] 孙国刚, 时铭显. 提高旋风分离器捕集细粉效率的技术研究进展. 现代化工, 2008, 28(7): 64-69 Sun Guogang, Shi Mingxian. Progress in improving removal efficiency of gas cyclones for fine particles. Modern Chemical Industry, 2008, 28(7): 64-69(in Chinese)
    [3] 王伟文, 王立新, 李建隆. 环流式旋风除尘器的性能. 天津大学学报, 2004, 37(3): 207-211 Wang Weiwen, Wang Lixin, Li Jianlong. Performance of circumfluent cyclone. Journal of Tianjin University, 2004, 37(3): 207-211(in Chinese)
    [4] Erdal F. M., Shirazi S. A., Mantilla I., et al. Computational fluid dynamics (CFD) study of bubble carry-under in gas-liquid cylindrical cyclone separators. SPE Production & Facilities, 2000, 15(4): 217-222
    [5] Xiong Zhiyi, Ji Zhongli, Wu Xiaolin. Development of a cyclone separator with high efficiency and low pressure drop in axial inlet cyclones. Powder Technology, 2014, 253: 644-649
    [6] Gao Xiang, Chen Jinfeng, Feng Jianmei, et al. Numerical investigation of the effects of the central channel on the flow field in an oil-gas cyclone separator. Computers & Fluids, 2014, 92: 45-55
    [7] Karagoz I., Avci A., Surmen A., et al. Design and performance evaluation of a new cyclone separator. Journal of Aerosol Science, 2013, 59: 57-64
    [8] 王乐勤, 郝宗睿, 王循明, 等. 简体长度对旋风分离器内流场影响的数值模拟. 工程热物理学报, 2009, 30(2): 223-226 Wang Leqin, Hao Zongrui, Wang Xunming, et al. Numerical simulation of flow field in cyclone of different height. Journal of Engineering Thermophysics, 2009, 30(2): 223-226(in Chinese)
    [9] 牟春宇, 姜大志. 旋风除尘器环形空间气流运动的数值研究. 环境工程学报, 2007, 1(8): 96-100 Mu Chunyu, Jiang Dazhi. Numerical study of airflow's movement in cyclone's annular space. Chinese Journal of Environmental Engineering, 2007, 1(8): 96-100(in Chinese)
    [10] 崔洁, 陈雪莉, 龚欣, 等. 径向入口结构的旋风分离器内三维流场的数值研究. 高校化学工程学报, 2010, 24(3): 388-394 Cui Jie, Chen Xueli, Gong Xin, et al. Numerical simulation of three-dimension flow field in a new-type cyclone separator with a radial inlet structure. Journal of Chemical Engineering of Chinese Universities, 2010, 24(3): 388-394(in Chinese)
    [11] 梁绍青, 王铖健. 旋风分离器流场数值模拟及其涡结构识别. 煤炭学报, 2014, 39(S1): 262-266 Liang Shaoqing, Wang Chengjian. Numerical simulation of the flow field in a cyclone separator and vortex identification. Journal of China Coal Society, 2014, 39(S1): 262-266(in Chinese)
    [12] 操波, 高广德. 扩散式旋风除尘器三维气相场的数值模拟. 系统仿真技术, 2007, 3(3): 164-168 Cao Bo, Gao Guangde. Numerical simulation of three-dimension gas flow in diffusible cyclone separator. System Simulation Technology, 2007, 3(3): 164-168(in Chinese)
    [13] 王福军. 计算流体动力学分析. 北京: 清华大学出版社, 2004
    [14] Fraser S. M., Abdel Razek A. M., Abdullah M. Z. Computational and experimental investigations in a cyclone dust separator. Proceedings of the Institution of Mechanical Engineers. Part E, Journal of Process Mechanical Engineering, 1997, 211(4): 247-256
    [15] 魏新利, 张海红, 王定标. 旋风分离器流场的数值计算方法研究. 郑州大学学报(工学版), 2005, 26(1): 57-60 Wei Xinli, Zhang Haihong, Wang Dingbiao. Numerical method of the flow field in a cyclone separator. Journal of Zhengzhou University (Engineering Science), 2005, 26(1): 57-60(in Chinese)
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1779
  • HTML全文浏览数:  1555
  • PDF下载数:  318
  • 施引文献:  0
出版历程
  • 收稿日期:  2014-12-03
  • 刊出日期:  2016-06-03
张建平, 徐达成, 车鹏, 任建兴, 潘卫国. 锥度对旋风除尘器主要性能的影响[J]. 环境工程学报, 2016, 10(5): 2507-2512. doi: 10.12030/j.cjee.201410186
引用本文: 张建平, 徐达成, 车鹏, 任建兴, 潘卫国. 锥度对旋风除尘器主要性能的影响[J]. 环境工程学报, 2016, 10(5): 2507-2512. doi: 10.12030/j.cjee.201410186
shu
Zhang Jianping, Xu Dacheng, Che Peng, Ren Jianxing, Pan Weiguo. Influences of taper on main performances of cyclone separator[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2507-2512. doi: 10.12030/j.cjee.201410186
Citation: Zhang Jianping, Xu Dacheng, Che Peng, Ren Jianxing, Pan Weiguo. Influences of taper on main performances of cyclone separator[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2507-2512. doi: 10.12030/j.cjee.201410186
shu

锥度对旋风除尘器主要性能的影响

  • 1.  上海电力学院能源与机械工程学院, 上海 200090
  • 2.  上海市电力材料防护与新材料重点实验室, 上海 200090
  • 收稿日期:  2014-12-03
基金项目:

国家自然科学基金资助项目(11572187)

上海市教育委员会科研创新项目(14ZZ154)

上海市科学技术委员会项目(15110501000,14DZ2261000)

上海市联盟计划项目(LM201217)

摘要: 为了提高旋风除尘器的分离效率,研究了锥度对旋风除尘器主要性能的影响,建立了气体流场和颗粒动力场的理论模型,并应用SIMPLEC 算法对不同锥度下旋风除尘器内部的总压、切速度、颗粒运动轨迹以及分离效率进行了数值模拟。数值结果表明:旋风除尘器内部的总压和切速度均基本呈轴对称分布,沿半径方向,总压呈非线性增大趋势,而切速度呈"驼峰"分布;通过减小锥度降低了总压和切速度,缩短了颗粒的停留时间,从而提高了分离效率,为旋风除尘器的结构优化设计、提高分离性能提供参考。

English Abstract

    全文HTML

参考文献 (15)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心