| 摘要 |
PURPOSE: To achieve smaller dimensions while obtaining a higher efficiency, by arranging first and second gas fluid fluidization circuits respectively inside and outside one set of tubes inside an enclosure, inlet and outlet orifices in the respective fluidization paths to pass one fluid as hot moistened combustion product and the other fluid as combustion air, and moreover, a humidifier means for air flowing in. CONSTITUTION: This vapor pump 10 is so arranged inside an enclosure 11 that the external side of a wall part of a tube 12 contacts a flue gas, while the internal side thereof contacts low temperature combustion air and provided with an air inlet orifice 15, an outlet orifice 16 of air heated and humidified, a supply duct 13 of a hot flue gas, and a cooled flue gas outlet duct 14. The flue gas is fluidized along the flue gas supply duct 13, flows down outside the tube 12 and then, out of the outlet duct 14. Air is introduced from the inlet orifice 15, humidified by a first humidifier 30 to spray a fine mist into the tube 12 while a fine mist done by a second humidifier 20 to be sprayed into an air outlet section. |
