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Description
A three-stage pulse tube cryocooler driven by 500W Stirling compressor is built and tested. To improve the phasing capability of the system, a double-inlet structure is introduced between the hot end heat exchanger and the pulse tube at all stages. In this paper, a simulation study and experimental verification of the reasonable opening of the double-inlet are carried out, and the reasons for the variation of the differences in the optimal values among them are analyzed. In addition, experimental analysis was conducted on the influence of operating pressure, operating frequency and filling pressure on the cryocooler, and the analysis showed that whether the refrigeration system is in the optimal phasing environment has the greatest influence on the experimental results.
