Method of liquefying freon gas

摘要

In a method of liquefying Freon gas, liquefied cooling gas such as nitrogen 7 is disposed in a space 6 between inner and outer tanks 4, 2, a heat exchange medium such as helium is disposed in a space 8 formed in the wall of tank 4, and freon gas is passed into tank 4, where it is liquefied and stored, being prevented from solidifying by agitation from agitator 24.