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    • 73. 发明公开
    • DUCT WALL SURFACE STRUCTURE
    • DUCT墙面结构
    • EP3034943A1
    • 2016-06-22
    • EP14841726.4
    • 2014-07-18
    • Mitsubishi Hitachi Power Systems, Ltd.
    • ODA, ManabuKUSHIOKA, KiyonoriKIYOSAWA, Masashi
    • F23J3/04F23M5/00
    • F23J3/04B01D45/06B01D45/08F01K5/02F23J2217/20F23J2217/30F23M5/00
    • Abstract: A duct wall surface structure wherein, in a flue which carries a solid-gas two-phase flow and is formed by a duct made of steel plates, and is equipped with hoppers, the solid particle trapping efficiency in the hoppers is improved, thereby reducing the outflow of these particles downstream from the duct. This duct wall surface structure, which is for a flue (10) carrying a solid-gas two-phase flow containing large-diameter ash (50) in the gas flow, is equipped with a first hopper (20A), which is provided at the lower end of a first vertical flue part (12) installed in the direction in which the flow has a velocity component in the up-down direction, and which recovers the large-diameter ash (50) from the gas flow. In addition, a low-rebound part (60) having a smaller re-bound coefficient than a steel plate is provided on a slanted surface (21) against which the large-diameter ash (50) collides upstream from the first hopper (20A) in the flow direction.
    • 摘要:一种管壁表面结构,其中,在承载固气两相流的烟道中,由钢板制成的管道形成并装备有漏斗,从而提高了漏斗中的固体颗粒捕集效率, 从而减少这些颗粒从管道下游的流出。 该管道壁表面结构用于承载气流中含有大直径灰(50)的固气两相流的烟道(10)配备有第一漏斗(20A),该第一漏斗 在沿上下方向具有速度分量的方向上安装的第一竖直烟道部分(12)的下端,并从气流中回收大直径烟灰(50)。 另外,在大直径灰(50)与第一漏斗(20A)的上游碰撞的倾斜表面(21)上设置具有比钢板更小的重新结合系数的低回弹部分(60) 在流动方向上。