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    • 3. 发明专利
    • DE3683492D1
    • 1992-02-27
    • DE3683492
    • 1986-11-26
    • SHIMIZU CONSTRUCTION CO LTD
    • SUZUKI YOSHINOBUMANABE MITSUFUSA
    • F24F3/16F24F7/06
    • A clean room which can be used suitably when it is desired to keep the air inside a clean room at an ultrahigh purity. This clean room is equipped with a ceiling (23), a floor (28), an indoor space (30) between said ceiling and said floor, air supply means (24) for supplying an ultrahigh-purity air into the indoor space and air discharge means (40) for discharging the air supplied into the indoor space. The indoor space is divided into a first region (B) of which a high purity is required and a second region (A) which is adjacent to the first region and of which a purity further higher than that of the first region is required. The air supply means is equipped with air blow ports (26) which are disposed on the ceiling of the second region and blows out the air downward, and the air discharge means is equipped with first air suction ports (25) which are disposed on the ceiling of the first region and sucks the air upward. Part of the clean air blown downward from the air blow ports is taken into the first air suction ports so that an air stream having a large lateral velocity component flowing from the second region generates inside the indoor space and prevents intrusion of dust from the first region to the second region.
    • 4. 发明专利
    • CLEAN ROOM
    • CA1280929C
    • 1991-03-05
    • CA525873
    • 1986-12-19
    • SHIMIZU CONSTRUCTION CO LTD
    • SUZUKI YOSHINOBUMANABE MITSUFUSA
    • F24F3/16F24F7/06
    • A clean room suitable for use when ultra high cleanliness of air is to be maintained. The clean room has a ceiling , a floor , an indoor space between the ceiling and the floor, an air supply means for supplying the air of ultra high cleanliness to the indoor space, and an air exhausting means for exhausting the air supplied to the indoor space. The indoor space is divided into a first region requiring high cleanliness and a second region adjacent to the first region and requiring ultra high cleanliness higher than that of the first region. The air supply means includes an air outlet port arranged in a ceiling of the second region and blowing the air downward, and the air exhausting means includes a first air inlet port arranged in a ceiling of the first region and exhausting the air upward. Since part of the clean air blown off downward from the air outlet port is exhausted in the first inlet port, an air stream having a large transverse speed component flowing from the second region to the first region is generated, thereby preventing introduction of dust from the first region to the second region.