期刊论文

中文

矿山机械

1001-3954

2018

46

2

50-55

10.3969/j.issn.1001-3954.2018.02.011

湖南省教育厅产业化基金资助项目（12CY011）；

本校为第一机构

采用非稳态RSM湍流模型对螺旋面单入口、螺旋面双入口（90°、120°、150°、180°）5种分离器的流场进行数值模拟。结果表明:螺旋面双入口分离器流场稳定且对称性好,"顶灰环"现象不明显,压力损失小,分离效率高;在相同气速条件下,随着入口旋转角的增加,分离器的压降不断变小,而且入口旋转角越大,压降随入口旋转角增大而变小的幅度越来越小;入口旋转角为90°的螺旋面双入口分离器分离效率最高。

Unsteady RSM turbulence model was applied to conduct numerical simulation on the flow field of five kinds of separators respectively equipped with helical-roof single inlet and helical-roof double inlet with various inlet rotational angle（90°, 120°, 150°and 180°）. The results showed： the separator with helical-roof double inlet possessed stable and symmetric flow field with low pressure drop and high separation efficiency, and the status of top ash ring was not obvious; at the same air velocity, with the increase in the inlet rotational ...