AIR HEATER Russian patent published in 1997 - IPC

FIELD: ventilation and air-conditioning systems. SUBSTANCE: air heater has air distributing box 2 and housing 1 where heat exchange plate stack 4 is located. Plates of heat exchange stack are mounted in tray 3 forming dry and moist passages 5 and 6 for outside air and for inside air being recovered; passages 5 and 6 are provided with moisture-proof and capillary porous coat respectively. Each pair of plates in heat exchange stack is closed in turn with blank 7 and is open in upper portion of stack. Tap water is fed to porous material 8 at top through injectors 10 via supply pipe line 9; tray 3 where heat exchange plate stack is located is provided with overflow connection 11 and discharge pipe line 12. Tray 3 is separated from air distributing chambers 16 and 17 by means of partitions 20, soft gaskets being mounted between end plates of heat exchange stack and partitions 14. EFFECT: enhanced reliability. 3 dwg