POLYFUNCTIONAL AIR HEATER Russian patent published in 2011 - IPC F23L15/04 

FIELD: power industry.

SUBSTANCE: air heater includes the housing inside which pack of flat and perforated plates is arranged; the above plates are arranged in turn, which form gas and air channels between each other; holes in perforated plates are arranged in pairs in rows one opposite the other and equipped with washers made from dielectric material, through which wire pieces are also passed in pairs, perpendicular and at an angle relative to flat plates. Wire pieces are made from various metals and soldered on ends between each other, thus forming zigzag-shaped nets. At that, all nets of the same cross section are connected to each other in series through side holes in flat plates with wire pieces soldered to their ends, thus forming multi-row zigzag-shaped nets arranged one above the other in tiers in all gas and air channels; at that, each multi-row zigzag-shaped net is connected with its ends to collectors of electric charges, which are in their turn connected to terminals.

EFFECT: higher efficiency of polyfunctional air heater.

5 dwg