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    • 3. 发明专利
    • VENTILATION SYSTEM
    • JPH02309146A
    • 1990-12-25
    • JP13196989
    • 1989-05-25
    • MATSUSHITA ELECTRIC WORKS LTD
    • KUROSAKA MASAOHIMEKI SHIGEYUKIHORIBE SHUICHIROYOSHIKAWA KIYOJITSUDA HISASHI
    • F24F7/007F24F7/06F24F7/10
    • PURPOSE:To perform an efficient discharging of cigarette smoke out of a room by a method wherein air is discharged from an upper surface of a partition plate placed on a desk so as to form an upward directed air flow and an opening of a ventilating fan installed at a ceiling facing an interior of the room is oppositely faced against a discharging port arranged at the upper surface of the partition plate. CONSTITUTION:A partition plate 11 arranged between a pair of desks 10 is a hollow member, vertically placed on a floor and its upper end is projected more upwardly than top plates 12 of the desks 10. A fan 17 is arranged at the lower end within the partition plate 11 in correspondence with a suction port 13, air fed from the suction port 13 into the partition plate 11 is pressurized and then discharged out of a discharging port 14 upwardly. A ceiling is provided with a ventilating fan 20 having an opening 22 oppositely facing against the discharging port 14 of the partition plate 11. As one of the smoke sensors detects a cigarette smoke, the ventilating fan 20 and the 17 of the partition plate 11 are operated. With such an arrangement, it is possible to discharge the cigarette smoke out of the room during smoking.