压力对涡流管性能影响的实验研究  

Effect of the Pressure on the Performance of the Vortex Tube

作　　者：何曙[1] 郭建[2] 马重芳[2] 

机构地区：[1]郑州轻工业学院,河南郑州450002 [2]北京工业大学,北京100022

出　　处：《流体机械》2005年第12期8-11,共4页Fluid Machinery

基　　金：国家重点基础研究发展规划资助项目(G2000026304)

摘　　要：采用自行设计的涡流管,并以空气作为工作介质,通过实验研究了在保持膨胀比不变的情况下,不同进口压力对涡流管性能的影响。实验结果表明:对于常温涡流管,在较小的膨胀比下,进口压力的改变对涡流管的制冷性能没有显著的影响;随着膨胀比的增加,进口压力的改变对涡流管制冷性能的影响也变得越来越显著。膨胀比为3时,进口压力的增加基本不影响涡流管的制冷性能,而膨胀比为6时,随着进口压力的增加,涡流管的制冷性能显著提高。The effect of the inlet pressure on the performance of the vortex tuba which was designed by author was investigated by experiment with air as medium. The experiment results show that the cooling performance of the vortex tube keeps unchanged under a fixed lower expansion ratio, with the increase of the expansion ratio, the effect of the inlet pressure on the cooling performance of the vortex tube is becoming remarkable. Under a fixed bigger expansion ratio, the cooling performance of the vortex tube increases with the increase of the inlet pressure.

关 键 词：涡流管 制冷性能 膨胀比 

分 类 号：TB619[一般工业技术—制冷工程]