U型脉管制冷机冷端连管对压缩机输出特性影响  

Influence of connecting tube at cold end of U-shape pulse tube cryocooler on compressor output

作　　者：尹传林[1,2] 陈厚磊[3] 蔡京辉[3] 

机构地区：[1]中国电子科技集团公司第十六研究所,合肥230043 [2]安徽省低温与制冷技术省级实验室,合肥230043 [3]中国科学院理化技术研究所,北京100190

出　　处：《低温工程》2015年第3期67-70,共4页Cryogenics

摘　　要：实验研究了U型脉冲管制冷机中冷端连管直径、长度对线性压缩机输出特性及制冷机性能的影响。结果表明,管径过小的连管导致压缩机出口压力波与速度波相位差增大,压缩机效率下降,制冷机性能下降;冷端连管长度对压缩机效率影响不大,但随着冷端连管增长,制冷机整机性能下降。Experimental study of connecting tube at the cold end of U-shape pulse tube cryocooler was carried out to investigate the Influence of the connecting tube on the characteristics of compressor output and the performance of cryocooler. According to the experimental results, the diameter of the connecting tube infulence the phase angle of the presurre wave and the velocity wave at the inlet of the compressor. The little diameter of the connecting tube, the bigger phase angle betwen the presurre wave and the velocity wave. The length of the connecting tube have little infulence on the performance of compressor output. But, The performance of pulse tube cryocooler gets lower when the length of the connecting tube gets longer.

关 键 词：U型脉管制冷机 冷端连管 输出特性 PV功 

分 类 号：TB651[一般工业技术—制冷工程]