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    Dual fuel boiler with backflow-preventing valve arrangement
    1.
    发明申请
    Dual fuel boiler with backflow-preventing valve arrangement 审中-公开
    双燃料锅炉具有防回流阀装置

    公开(公告)号：US20070154856A1

    公开(公告)日：2007-07-05

    申请号：US11324430

    申请日：2006-01-03

    申请人： Raymond Hallit ,  Robert Glass ,  Larry Ashton

    发明人： Raymond Hallit ,  Robert Glass ,  Larry Ashton

    IPC分类号： F23N5/00

    CPC分类号： F23K5/005 ,  F23N1/002 ,  F23N2037/08

    摘要： A dual fuel boiler has fuel delivery apparatus coupled to its burner section through a pressure regulator and operative to deliver to the burner section, from sources thereof, a selectively variable one of (1) a first fuel at a pressure greater than the pressure regulation setting of the pressure regulator, and (2) a second fuel at a pressure less than the pressure regulation setting, the second fuel having a Wobbe index greater that that of the first fuel. The first fuel is flowed to the burner section via a branch supply line in which first and second electromechanical two position, two-way, two position valves are installed in series in opposite normal flow orientations to thereby prevent backflow of the second fuel into the source of the first fuel.

    摘要翻译： 双燃料锅炉具有通过压力调节器联接到其燃烧器部分的燃料输送装置，并且可操作地将来自其源的燃烧器部分输送到（1）在大于压力调节设定的压力下的第一燃料中的可选择的变量 的压力调节器，以及（2）在小于压力调节设定的压力下的第二燃料，第二燃料的沃泊指数大于第一燃料的指数。 第一燃料经由分支供应管线流到燃烧器部分，其中第一和第二机电二位置，双向两位置阀以相反的正向流动方向串联安装，从而防止第二燃料回流到源 的第一种燃料。