Rotary type ultralow temperature refrigerant supply apparatus

A rotary type ultralow temperature refrigerant supply apparatus coupled between a refrigeration system configured to supply an ultralow temperature refrigerant and a super conductive rotor for supplying an ultralow temperature refrigerant to an evaporator formed inside the super conductive rotor and withdrawing the ultralow temperature refrigerant from the evaporator, the rotary type ultralow temperature refrigerant supply apparatus comprising:

• a refrigerant introduction pipe coupled to the super conductive rotor, such that the refrigerant introduction pipe can rotate with the super conductive rotor, for supplying a liquid-phase ultralow temperature refrigerant cooled by the refrigeration system to the evaporator;
• at least one refrigerant withdrawal pipe disposed spaced apart from the refrigerant introduction pipe for withdrawing a gas-phase ultralow temperature refrigerant obtained through the evaporation of the liquid-phase ultralow temperature refrigerant by the evaporator and guiding the withdrawn gas-phase ultralow temperature refrigerant to the refrigeration system, the at least one refrigerant withdrawal pipe being configured to rotate with the refrigerant introduction pipe;
• and
• a vacuum housing fixedly disposed outside the refrigerant introduction pipe and the at least one refrigerant withdrawal pipe, the vacuum housing having a vacuum heat insulation space defined inside.