COOLING SYSTEM FOR SUPERCONDUCTOR

摘要

The present invention relates to a superconducting cooling system having a storage tank in which liquefied natural gas is stored. According to the present invention, the superconducting cooling system comprises: a high pressure natural gas spray engine compressing evaporation gas generated in the storage tank and using the same as a fuel; a heat exchanger liquefying a part of evaporation gas which is not supplied into the high pressure natural gas spray engine among the compressed evaporation gas; an expansion valve installed to lower the pressure of the evaporation gas liquefied in the heat exchanger; and a cooler which is installed to cool a gas component which is depressed while passing through the expansion valve and becomes a gas-liquid mixture, thereby supplying at least one among liquid components of the evaporation gas in the gas-liquid mixed condition to a refrigerant of a superconducting device.