本文提出了一种计算颈管传热的方法,由于考虑了颈管的热导率和蒸汽的比热与温度的函数关系,使计算结果更为精确。本文绘出了不锈钢和德银作液氦、液氢和液氮容器的颈管时,到达颈管冷端的热流与颈管尺寸及排出的蒸汽流量之间的关系。 In this paper, a method of calculating the heat transfer of the neck tube is proposed. The calculation results are more accurate because of the consideration of the thermal conductivity of the neck tube and the specific heat of the steam as a function of temperature. This article plots the relationship between the heat flow to the cold end of the neck tube, the size of the neck tube, and the steam flow discharged when stainless steel and de-silver are used as the neck for liquid helium, liquid hydrogen, and liquid nitrogen vessels.