COOLING SYSTEM FOR SUPERCONDUCTING POWER APPARATUS

摘要

A cooling system for a superconducting power apparatus, having a reservoir for storing liquid gas, a circulation pump, a heat exchanger for cooling the liquid gas, and a circulation loop in which a liquefied gas circulates, the liquefied gas being circulated in a subcooled state by using the circulation pump to cool the superconducting power apparatus, wherein the cooling system further has pressurizing means for pressurizing the reservoir by the same kind of gas as the liquefied gas, and the liquid level of the reservoir for storing the liquefied gas in a pressurized state is positioned above the exit of a return line of the circulating liquefied gas by at least an amount equal to the sum of the depth of dissolution of the pressurizing gas and of the amount of correction of liquid level movement.