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    • 7. 发明公开
    • A gas distribution arrangement for the admission of a processing gas to an atomizing chamber
    • 用于将加工气体进入气化室的气体分配装置
    • EP0153723A3
    • 1986-04-23
    • EP85102063
    • 1985-02-25
    • APV Anhydro A/S
    • Rasmussen, Henning
    • B05B03/00B05B03/10B05B07/06B01D01/20
    • B05B3/105B05B7/0075
    • In a gas distribution arrangement the processing gas is admitted from a helical inlet duct through an annular orificial slit (4) into a space between two coaxial guide walls (6,7). Guide vanes (8) are provided in the orificial slit (4) to impart a change of direction to the flow of processing gas. Each guide vane (8) is a spatial body with differently extending, vertical limitation surfaces (8a,8b), which between adjacent vanes (8) delimit ducts whose sectional area as measured transversely of the flow direction of the processing gas through the individual duct (13) is substantially of the same size over the extent of the duct (13). By this arrangement sudden changes of the velocity of the flow of gas through the ducts (13) are avoided as well as consequent formations of eddies and pressure drops over the orificial slit (4), whereby the power consumption for supplying the processing gas is diminished. The vertical height of the guide vanes (8) may decrease along their radial extent inwards in the orificial slit, and their vertical limitation surfaces (8a,8b) may form an acute angle at the radially innermost ends of the guide vanes (8), so that the flow of gas is directed downwards through the individual ducts (13) toward the space between the conical guide walls (6,7).