| 摘要 |
PURPOSE:To reduce running and equipment cost in a low-boiling gas liquefying unit, in which refrigerant gas is circulated through a compressor, an expansion valve, a liquefied refrigerant receiver to the compressor, and which in addn. has a by-pass through an expansion turbine, by connecting the return pass for the refrigerant from the receiver to the high speed flow part of the expansion turbine. |
