| 摘要 |
1084686 Liquefaction of gases HYMATIC ENGINEERING CO Ltd 11 Feb 1966 [1 April 1965] 13883/65 Headings F4H and HG13 In a gas liquefier in which the gas, e.g. hydrogen, is cooled by passage through a finned heat exchanger coil 12 and is then expanded through an expansion nozzle 13 to cause liquefaction, the coil 12 is cooled by the cold hydrogen gas resulting from the expansion and also by an air liquefier comprising a heat exchanger coil 17, an expansion orifice 19 and a cup 39 for the liquid air. The liquefied hydrogen collects in the well of a cylindrical vacuum-walled vessel 10, surrounding the liquefiers and the expanded hydrogen gas passes over the coil 12 and is withdrawn through an outlet 34. The coil 12 is separated from the coil 17 and from the polystyrene foam or asbestos compound cup 39 by a stainless steel tube 1. Air is admitted to the coil 17 through an inlet 22 and the cooled gas resulting from expansion through the orifice 19 cools the coil 17 on its return to an outlet 23. |
