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通过氦液化器本级换热器的热力特性分析,阐明了利用分布阻力可以改善换热性能,提高液氦产量的理论。同时设计制造了一种分布阻力型换热器,在4．2K小型制冷机上进行了对比实验,验证了上述理论。图4参6。
Through the analysis of the thermal characteristics of the heat exchanger of the helium liquefier, the theory that the distribution resistance can be used to improve the heat transfer performance and increase the liquid helium production is clarified. At the same time, a kind of distributed resistance heat exchanger was designed and manufactured, which was verified on a 4.2K mini refrigerator. Figure 4 reference 6.