| 摘要 |
324,940. Haber, E. Sept. 3, 1928. Heating gases and liquids.-A heat exchange apparatus for heating or cooling air or other fluid and which may also operate as a condenser or steam generator comprises' a closed circulation conduit 9 containing a fan 6, groups of heatexchanging elements 1, 2 and pipes 10, 12 extending into the conduit for admission of fresh medium and discharge of part of the used medium, the conduit being restricted at 14 above the mouths of both the inlet and outlet pipes. The medium to be heated is passed through the heat-exchange elements 1, 2 in the direction of the arrows 3. Valves 14<1>, which may be interconnected, control the supply and outlet of the heating medium, which may be smoke gases from a furnace, the walls of the conduit then being of refractory material. Cold fresh air may be supplied to the conduit through a central tube 16 or a tube 17 concentric with the pipe 10 to further reduce the temperature of the fresh heating medium. When used as a condenser, a cooling medium such as water may be circulated in the channel 9, fresh cold water being admitted at 10, and steam to be condensed may pass in the direction of the arrows 3. |
