| 摘要 |
PURPOSE:To make uniform the blowoff gas-flow and suction gas-flow, which are at low speed (below about 5m/sec) and over a wide area, by a method wherein for a blowoff flow-uniformizing arrangement, a long blowoff pipe is placed in a blowoff box, and toward the downstream side at the upstream side of a blowoff opening, an opening control layer, a filter layer and a honeycomb structure are respectively provided in that order. CONSTITUTION:In a blowoff arrangement 11 for uniform gas-flow, when a gas-flow blown by a blowoff fan 20 is bent about at a right angle, the gas-flow at a blowoff part 21A is apt to concentrate on the end side of a linear flow along the direction blown by the blowoff fan 20, that is, on the far side of the blowoff fan 20. However, a blowoff flow for which both pressure and speed are uniformized can be produced ranging over the longitudinal direction in a blowoff box 21 by the following conditions: That is, a blowoff pipe 23 is provided in the blowoff box 21 and an outlet part 28 on the blowoff pipe 23 is provided on the reverse side of the blowoff part 21A; and baffles (partition) 29 are provided; and the opening degree of the outlet part 28 on the blowoff pipe 23 is formed so as to be made gradually smaller ranging from the near side of an intake 27 on the side of the blowoff fan 20 to the far side thereof. |
