Mid-efficiency furnace with multiple venting option
    5.
    发明授权
    Mid-efficiency furnace with multiple venting option 有权
    中效炉具有多通风选项

    公开(公告)号:US6112741A

    公开(公告)日:2000-09-05

    申请号:US303804

    申请日:1999-04-30

    CPC classification number: F23L11/02 F23L17/005

    Abstract: A multi-category gaseous fuel-fired heating apparatus having a combustion chamber, a mixing chamber in fluid communication with the combustion chamber, and an induced draft blower in fluid communication with the mixing chamber whereby combustion air is drawn into the combustion chamber for combustion of the gaseous fuel and the flue gases are drawn from the combustion chamber through the mixing chamber and exhausted into either a high temperature flue gas vent or a low temperature flue gas vent. The mixing chamber includes a dilution air inlet which, in a high temperature vent mode of operation of the heating apparatus is sealed off by an orifice plate disposed between the mixing chamber and the induced draft blower, and in a low temperature vent mode, the dilution air inlet is open and a larger blower inlet orifice is used.

    Abstract translation: 具有燃烧室,与燃烧室流体连通的混合室的多类型气体燃料燃烧加热装置和与混合室流体连通的引风式鼓风机,由此燃烧空气被吸入燃烧室内燃烧 气态燃料和烟道气从燃烧室通过混合室抽出并排放到高温烟气排放口或低温烟气排放口内。 混合室包括稀释空气入口,其在加热装置的高温放气操作模式被设置在混合室和引风机之间的孔板密封,并且在低温排放模式下,稀释空气入口 空气入口打开,使用较大的鼓风机入口孔。

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