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首次建立了较完善的液氦温区多层混合填料型低温蓄冷器的数值模拟方法， 模型中考虑了工作过程中的传热、蓄冷器内空隙率存在以及工质的实际气体性质等多种实际因素。运用数值模拟方法， 详细地研究了常用蓄冷填料如 Ｐｂ， Ｅｒ３ Ｎｉ， Ｅｒ Ｎｉ２， Ｅｒ Ｎｉ， Ｅｒ Ｎｉ０９ Ｃｏ０１等的不同组合对制冷效果的影响， 提出了不同填料的最佳组合确定原则， 为合理有效地设计高性能液氦温区低温蓄冷器提供了依据。
For the first time, a well-established numerical simulation method for multi-layer low-temperature cold accumulator with liquid-helium temperature zone was established. In the model, various methods such as heat transfer during operation, existence of void in accumulator and actual gas properties of working fluid were considered Practical factors. The effects of different combinations of common cold storage fillers, such as Pb, Er3Ni, ErNi2, ErNi, ErNi0.9Co0.1, etc, on the refrigeration effect are studied in detail by means of numerical simulation. The best combinations of different fillers are determined Principle, which provides a basis for the reasonable and effective design of high performance liquid helium cryogenic regenerator.