| 摘要 |
An air quality control system is provided herein. The system includes an inflow system which includes a tubular enclosure (15) suspended from a ceiling of a room (10) or from a roof (11) above the room (10). The tubular enclosure (15) is fitted with a ceiling fan (14). An air supply unit (17) external to the room (10) (e.g., outdoors) includes an air supply duct, the air supply duct being connected to an inlet to the interior (26) of the tubular enclosure (15). The flow of air to the tubular enclosure (15) is controllably variable. An outflow system is also provided for exhausting substantially all the air volume inflowing through the inflow system. The outflow system includes an exhaust grill (30) connected to the ceiling or a wall of the room, an exhaust riser duct (31) connected to the exhaust grill (30), and an exterior exhaust outflow fan (33) connected to the outlet (34) from the exhaust riser. The exhaust fan (33) is operated in conjunction with the inflow fan to exhaust, via the outflow system, substantially all the volume of air inflowing through the air inflow system into the inside room (10) through the outflow system. In this way, the quality of air in the inside room is improved by impelling a selected volume of outdoor air downwardly into inside room air, circulating the outdoor air within the inside room and expelling that selected volume of used inside room (10) air from the inside room (10), and by allowing the occupant of the inside room (10) to adjust comfort conditions by varying air circulation and the selected volume of outdoor air.
|
