| 摘要 |
PURPOSE:To obtain a simple container for injection liquid by providing a gas containing cooling transfer chamber around an inner container having an inlet for liquid He and providing a tank having a liquid nitrogen inlet at the outer periphery and surrounding it with a vacuum tank. CONSTITUTION:When He is filled in an inner container 2, Ne is filled in a cooled transfer chamber 3, and liquid nitrogen is filled in a tank 4, He is heated by the convection of Ne. A multilayer heat resistant layer 8 is isolated at the flow passage to transmit the heat preferably. When the interior of the container 2 is cooled to the vicinity of the He temperature, if liquid-He is filled in the container 2, Ne in the chamber 3 is liquefied and solidified to create a vacuum, an adiabatic tank is formed between the container 2 and the tank 4, and the superconductive equipment in the chamber can be effectively cooled. A tube 18 serves as a sealing and outlet for the Ne, and the tube 19 is an inlet for the liquid He, and tubes 16, 17 are inlets for the liquid nitrogen. With this structure, the luquid He can be simply filled, thereby enabling automating or semiautomating the liquid filling without manual operation. |
