The installation features of vacuum adiabatic pipe 1, plug-and-pull connection, commonly known as vacuum flanged connection, segmented production, pipe sections between the use of vacuum flanged connection 2, welding connection, commonly known as welding connection, the joint welding of low-temperature heat-insulating pipe is made by subsection, the Spot Heat Preservation 3, the professional personnel guide the installation 4, the installation time is shortened, the installation workload is saved, and the installation cost is reduced