COOLING SYSTEM AND COOLING METHOD OF SUPERCONDUCTIVE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a cooling system of a superconductive device which achieves low electric power consumption and enables stable operation over a long time, and to provide a cooling method of the superconductive device.SOLUTION: A cooling system 100 of a superconductive device 110 includes a circulation loop 130 including a reservoir tank 120, a circulation pump 140, and a cooler 150 and circulates a liquid gas in a sub-cooling state. In particular, the cooling system 100 of the superconductive device 110 includes: first pressurizing means 160 which vaporizes the liquid gas introduced from a first bypass line 161 by using a heat exchanger 162 to supply the liquid gas; decompressing means 170 which supplies the liquid gas introduced from a second bypass line 171; a pressure sensor 200 which detects a pressure in the reservoir tank; and controlling means 220.