| 摘要 |
PURPOSE:To enable the free setting of a flow speed in an up-and-down direction, by respectively controlling flow speeds in a flow passage, which is divided by dividing plates, by a flow speed control apparatus. CONSTITUTION:Dividing plates 11 are arranged almost parallelly in the upstream side within a measuring body 5 at equal intervals and attached to the wall of the measuring body 5 at both ends thereof. Control plates 13 each having a width slightly narrower than each internal between the dividing plates are attached to the rotary shaft 12 horizontally traversing the measuring body 5 so as to pierce therethrough. When the rotary angle of the rotary shaft is adjusted to change the inclination of the control plates 13, the winds flowing through plural flow passages partitioned in the up-and-down direction by the dividing plates are changed in a throttling degree by the flow amount control apparatus consisting of the rotary shaft 12 and the control plates 13 and a flow speed is controlled. Therefore, the necessary shape of a shear 14 is obtained at the end parts of the dividing plates 11. |
