An Improved Apparatus applicable as an Air Cooler, a Water Heater, a Vapour Condenser or the like.

摘要

19,291. Waller, W. W. Sept. 3, 1910, [Convention date]. Heating air &c.-Air is forced by a fan 3 through a chamber 1, containing a tubular heater, to a casing 7, whence it is delivered by the outlet 8. The tubular heater, shown in Figs. 3 and 4, consists of upper and lower headers 6, 5 connected by jacketed air-pipes 4. The headers consist of several hollow intercommunicating portions. The pipes 4 extend through the headers and a fluid introduced into the upper header passes through the space between the tubes 4 and their jackets 12 to the lower headers, whence it returns by single large pipes 11 to branches 18 leading to the outlet main 19. The air passes upwards through the pipes 4 and through the space 15 between the jackets 12 and the pipes 11. The pipes 11 and jackets 12 are provided with external helical baffles 14, and similar baffles 13 are placed in the spaces between the pipes 4 and 12. The side of the chamber 1 is hollowed out to direct air against the jackets 12.