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    • 4. 发明申请
    • MULTI-CAVITY GAS AND AIR MIXING DEVICE
    • 多气体和空气混合装置
    • US20160334100A1
    • 2016-11-17
    • US15110377
    • 2014-01-09
    • A. O. SMITH (CHINA) WATER HEATER CO., LTD.
    • Shiping ZHANGDayan BIRuihong WEI
    • F23D14/04F23D14/62
    • The present invention provides a multi-cavity gas-air mixing device, comprising at least two mixing cavities each having an air inlet and a mixture outlet communicated with a combustor, wherein each of the mixing cavities has a built-in gas pipeline, each of the gas pipelines is provided with a gas jet, and the orientation of the gas jet is intersected with a flow direction of air entering into the mixing cavities. The present invention effectively segments the gas-air mixer and achieves a large load regulation ratio, without producing condensate water at any load segment, thereby improving the system reliability and service life. The built-in gas pipeline of the present invention not only actively controls the fuel in the open-close control pipeline, but also reduces the volume of the mixer and largely decreases the cost. In addition, the orientation of the gas jet of the present invention is intersected with a flow direction of air entering into the mixing cavities, such that gas and air are sufficiently mixed.
    • 本发明提供了一种多空腔气体 - 空气混合装置,其包括至少两个混合空腔,每个混合腔具有空气入口和与燃烧器连通的混合物出口,其中每个混合空腔具有内置气体管道, 气体管道设置有气体射流,并且气体射流的取向与进入混合腔的空气的流动方向相交。 本发明有效地分段了气 - 空混合器,实现了较大的负荷调节比,不会在任何负荷段产生冷凝水,从而提高了系统的可靠性和使用寿命。 本发明的内置气体管道不仅主动地控制开闭控制管路中的燃料,而且还减少了混合器的体积,并大大降低了成本。 此外,本发明的气体射流的取向与进入混合腔的空气的流动方向相交,使得气体和空气充分混合。