摘要
在增压透平膨胀制冷系统中采用了新型气浮轴承支承结构,并通过系统性能实验对该设备的热力参数进行研究分析。研究结果表明:当制冷机转速从40000 r/min提高到60000 r/min,制冷性能提高较大,工质流量提高了一倍,压缩机和膨胀机的出入口温差提高了一倍多,而功率却提高了近5倍。该实验结果可为增压透平膨胀机制冷性能的进一步优化提供实验参考依据。
Applying air-bearings supporting structure to the compressor turbine expander refrigeration system,the thermodynamic parameters of the test equipment was analyzed by means of system performance experimental investigation.The experiment results show that when the refrigerator rotating speed runs from 40000 r/min to 60000 r/min,the refrigerating performance improved greatly;the flow rate at 60000 r/min was twice as much as that at 40000 r/min,the temperature difference of the compressor and the turboexpander were doubled,while the power was increased five times as much.This test results provided references to the advanced optimization of compressor turbine expander.
出处
《制冷学报》
CAS
CSCD
北大核心
2012年第1期69-73,共5页
Journal of Refrigeration
关键词
热工学
热力性能
实验研究
增压透平膨胀制冷机
气浮轴承
Pyrology
Thermodynamic performance
Experimental investigation
Compressor turbine expander refrigerator
Hybrid air-bearings
