Patent ID: 6431974
Filing Date: 2002-08-13
Classification: F23J,F23L

Abstract:
An acoustic wind band apparatus for use with a gas exhaust device having a discharge outlet portion for exhausting a primary flow of high velocity gas in a gas exhaust system comprising:a plurality of spaced apart wind band sections, each wind band section having a top end defining a top opening, a bottom end defining a bottom opening, and one or more side walls disposed between and connecting said top end to said bottom end; said plurality of wind band sections being disposed circumferentially and in vertical spaced relation over said discharge outlet portion of said gas exhaust device and extending generally upward therefrom; wherein each wind band section has a smallest diameter or width greater than a diameter or width of said discharge outlet portion; a plurality of passages formed around a peripheral of said acoustic wind band and disposed circumferentially about said discharge outlet portion, wherein each passage draws a flow of gas from environmental atmosphere outside said acoustic wind band to induce a flow of environmental gas from therebelow to mix with and dilute gas from said discharge outlet portion inside said acoustic wind band; and a wind band top opening formed by said top end of an upper most wind band section through which a high velocity exhaust flume comprising said exhaust gas from said discharge outlet portion and said flow of environmental gas exits.