| 摘要 |
PURPOSE:To reduce electric power consumption relating to fans and noise of operation thereof, by arranging bar-shaped members thin and hollow in rows, installing a heat exchanger of laminated construction comprising said members at an intersecting part of a suction air passage with a discharge air passage, thus allowing fluid to pass through hollw part of these members so as to reduce pressure drop. CONSTITUTION:A fan 20 draws in indoor air from a suction port 5 through a filter 17 and fluid passages 25, and discharges it from a discharge port 8 to the outdoors. The fluid passages 25 consist of spacer members 23 and upper and lower partition plates 22. The spacer members 23 are composed of square, triangular, hexagonal, cylindrical members, etc. A fan 19 draws in outdoor air from a suction port 7 through filter 18 and supplies it through the fluid passages 25 similar to those stated above and through a discharge port 6 to the indoors. By means of the heat exchanger 21, full heat exchange can be performed between a discharge air flow and a suction air flow. |
