| 摘要 |
PURPOSE:To grasp a discharge gas diffusion state qualitatively by arranging a relief map fixedly in a measurement tunnel wherein a wind blows at a desired speed while diffused by a lattice type air flow controller, and arranging a read screen or mesh type indicator right above the map and discharging tracer gas into the measurement tunnel. CONSTITUTION:The indicator 12 installed in the space above the relief map 4 is impregnated with a discoloring reagent and the tracer gas which discolors this reagent is blown into the measurement tunnel 1 from a funnel model 4 while adjusted through a flow control valve 11. A fan 5 is rotated to flow a wind diffused by the lattice type air flow controller 6 into the measurement tunnel 1 on specific air current condition, and then the gas discharged from the funnel model 2 is diffused and contacts the discoloring reagent in said indicator 12, which is discolored, so the diffusion range of the mixed gas discharged from the funnel model 2 in the space is known. |
