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提出了一种新型的脉冲管制冷流程。在现有多级脉冲管流程的低温级用孔板式换热器代替使用铅球或磁性材料的回热器，这种换热器具有高效紧凑的特点，在低温下工作性能稳定，克服了制冷机在低温下受蓄冷材料热容变化影响的缺点，提高了系统的效率。并避免了由于使用磁性蓄冷材料对脉冲管制冷机应用的限制
A new type of pulse tube refrigeration process is proposed. In the existing multi-stage pulse tube process of low temperature level with the orifice plate heat exchanger instead of the use of shot or magnetic material of the regenerator, the heat exchanger with high efficiency and compact features, stable performance at low temperatures, to overcome the refrigerator Due to the shortcoming of the change of heat capacity of cold storage material at low temperature, the efficiency of the system is improved. And to avoid due to the use of magnetic cold storage material on the application of pulse tube refrigerator restrictions