The pipe interlayer adopts high vacuum multi-layer thermal insulation structure, the heat leakage of the high vacuum and low temperature insulation pipeline is 10 times less than that of the stacked insulation pipeline with the same nominal diameter, and the effective thermal conductivity of the high vacuum insulation material is 100 times less than that of the foamed polyurethane, check valve, emergency shut-off valve, filter, safety venting system and other components.