| 摘要 |
PURPOSE:To prepare an environment similar to a natural condition over an entire region, by a constituting a ceiling surface sucking clean air toward the interior of an organism arranged chamber from a blower chamber provided to the upper part of the organism arranged chamber from a perforated member having uniform aeration resistance over the entire surface thereof. CONSTITUTION:Pillars 8... are provided to four corners and an aluminum sandwich panel 9 is fixed between both pillars 8, 8 corresponding to each one side among opposed short sides while a vinyl curtain 10 is provided under tension between other pillars 8, 8. A box shaped blower chamber is formed to the upper part of an organism arranged chamber 1 and air sending ducts 6, 6 each constituted of a punching panel with an opening ratio of 20-40% are arranged to left and right positions between which the appropriate interval is provided in the upper part of the organism arranged chamber 2 while clean air is blown out into the lower chamber 2 from the ducts 6, 6. The bottom wall surface of the blower chamber 2 being the ceiling surface of the organism arranged chamber 1 is constituted of a perforated member having uniform aeration resistance pores over the entire surface thereof comprising a punching plate with an opening ratio of 3-5%. |
