冷端孔径对涡流管性能影响的实验研究

发布时间：2018-06-22 06:11

  本文选题：涡流管 + 进口压力　； 参考：《制冷学报》2017年06期

【摘要】：本文搭建了涡流管性能实验台,研究了不同冷端孔口直径的涡流管实验样机的性能。当进口压力为0.3~0.5 MPa时,分析了冷端孔径对冷端温降特性、制冷量特性、等熵温度效率特性及COP特性的影响。结果表明:冷端孔口直径对涡流管性能有很大影响,存在一个使涡流管冷端温降及制冷量均达到最大值的最佳冷端孔口直径,在本文设计的涡流管几何尺寸条件下,最佳冷端孔口直径为5 mm,最佳冷端孔口直径与热端直径比为0.5。
[Abstract]:In this paper, the experimental bench of eddy current tube is built, and the performance of the experimental prototype of vortex tube with different diameter of cold end orifice is studied. When the inlet pressure is 0.3 ~ (0.5) MPA, the effects of cold end aperture on the characteristics of temperature drop, cooling capacity, Isentropic temperature efficiency and cop are analyzed. The results show that the diameter of the cold end orifice has a great influence on the performance of the vortex tube, and there exists an optimum diameter of the cold end orifice which can make the temperature drop and the refrigerating capacity of the vortex tube reach the maximum value. Under the condition of the geometry size of the vortex tube designed in this paper, The optimum diameter of cold end hole is 5 mm and the ratio of the diameter of cold end hole to hot end is 0.5 mm.
【作者单位】： 天津商业大学天津市制冷技术重点实验室;
【分类号】：TB65
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本文编号：2051895