| 摘要 |
PURPOSE:To provide a total heat type heat exchanger for ventilation which is usable even at a cold district by a method wherein a through-hole extending through rectangular plates, making contact with each other to intercommunicate passages is formed in a pair of the heat exchange plates, adjoining to each other, of piled-up heat exchange plate, and a porous film which steam permeates but water does not permeate is located between rectangular plates. CONSTITUTION:In ventilation of the interior of a room, indoor air is fed to a heat exchanger 1 through running of a blower 12, and through running of a blower 14, the open air is fed to the heat exchanger 1. Contaminated air in a room (exhaust gas) flows in passages 4a... of the heat exchanger 1, and meanwhile fresh open air flows in a passage 4b of the heat exchanger 1. Exhaust gas and the open air are heat-exchanged with each other in the heat exchanger 1 through regular square plates 3... of heat exchange plates 2a, 2b.... When, during a winter season, absolute humidity in a room is high, humidity (steam) in exhaust gas passes (permeates) through a through-hole 6a, a porous film 7, and a through-hole 6b and is moved in the open air. Thus, a quantity of heat, which steam has, is exerted on air fed in a room through a fourth duct 11 and the air is heated with the high coefficient of heat exchanger to sufficiently heat the interior of a room. |
