Power consumption for an agitated vessel equipped with pitched blade turbine and short baffles
Power consumption for an agitated vessel equipped with pitched blade turbine and short baffles
复制标题
配备斜叶片涡轮机和短挡板的搅拌容器的功耗
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
J. Karcz
中科院分区：
文献类型：
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作者：
M. Major;J. Karcz
本文介绍了一种装有L长平面短折流板和螺距为β的斜叶片涡轮机的搅拌槽的功率特性。在内径D = 0.6 m的容器中进行研究，其中挡板位于距离容器底部p的位置（p + L = H）。在搅拌容器中牛顿液体流动的湍流状态下，使用应变计法测量扭矩。从数学上确定了螺距β和几何参数p/H对幂数Ne的影响。结果表明，在假定的β角下，函数Ne = f（L/H）随折流板长度L的减小（即随参数p的增大）而减小。此外，对于挡板长度L的假定值，函数Ne = f（β）随着叶轮叶片倾斜角β的增大而增大。
Power characteristics for an agitated vessel equipped with planar short baffles of length L and pitched blade turbine of pitch β are presented in the paper. The studies were carried out in the vessel of inner diameter D = 0.6 m, where the baffles were located in the distance p from the vessel bottom (p + L = H). Torque was measured using strain gauge method within the turbulent regime of the flow of Newtonian liquid in the agitated vessel. The effects of the pitch β and geometrical parameter p/H on the power number Ne were determined mathematically. The results showed that, for the assumed value of the angle β, the function Ne = f (L/H) decreases with the decrease in the baffle length L (i.e. with the increase in the parameter p). Moreover, for the assumed value of the baffle length L, the function Ne = f (β) increases with the increase in the angle β of the inclination of the impeller blade.