| 单、双入口旋风分离器环形空间流场的数值模拟 |
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| 引用本文： | 付烜,孙国刚,刘书贤,马小静,时铭显.单、双入口旋风分离器环形空间流场的数值模拟[J].炼油技术与工程,2010,40(8). |
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| 作者姓名： | 付烜 孙国刚 刘书贤 马小静 时铭显 |
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| 作者单位： | 中国石油大学（北京）重质油加工国家重点实验室 |
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| 基金项目： | 中国石化重油催化沉降器抑制结焦项目 |
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| 摘 要： | 采用RSM模型数值模拟了单入口、双入口旋风分离器环形空间流场分布形式。结果说明单入口分离器径向速度量值总体约是多入口分离器的10倍。双入口分离器环形空间流场对称性较好,切向速度比单入口分离器大;径向向心速度小,可能会减少气流向升气管壁面夹带的颗粒量;且升气管近壁下行速度小而均匀,能减小芯管下方短路流量,分离器性能比单入口分离器好。根据环形空间流场还可以推测,双入口分离器对升气管外壁面冲刷能力强且作用效果均匀,可以有效抑制在气管外壁大块结焦物的形成。
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| 关 键 词： | 旋风分离器 双入口 升气管外壁 结焦 对称性 |
Numerical simulation of flow field in annular space of single- and double-inlet cyclone |
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| Fu Xuan,Sun Guogang,Liu Shuxian,Ma Xiaojing,Shi Mingxian.Numerical simulation of flow field in annular space of single- and double-inlet cyclone[J].Petroleum Refinery Engineering,2010,40(8). |
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| Authors: | Fu Xuan Sun Guogang Liu Shuxian Ma Xiaojing Shi Mingxian |
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| Affiliation: | Fu Xuan; Sun Guogang; Liu Shuxian; Ma Xiaojing; Shi Mingxian State Key Laboratory of Heavy Oil Processing; China University of Petroleum(Beijing 102249; China); |
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| Abstract: | The flow fields in annular spaces of single-and double-inlet cyclone were simulated with RSM turbulent model.The results show that the radial velocity of single-inlet separator is 10 times that of double-inlet separator.Double-inlet separator offers a good symmetry.The tangential velocity is higher,the radial centripetal velocity is lower and short circuit flow is less than single-inlet separator.Therefore,the double-inlet cyclone has a better performance than that of single-inlet separator.In addition,the ... |
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| Keywords: | cyclone double-inlet external wall of riser coking symmetry |
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