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    • 6. 发明申请
    • Method of monitoring and controlling corrosion of furnace boiler tubes
    • 监测和控制炉锅炉管腐蚀的方法
    • US20020117401A1
    • 2002-08-29
    • US09793792
    • 2001-02-26
    • Bernard P. BreenDennis TobiasDavid EdenJames E. GabrielsonRalph W. McConnell
    • C23F013/00F23M009/00
    • G01N17/02F23G5/48F23M5/08F23M2900/05001
    • A method for monitoring and reducing corrosion in furnace boiler tubes measures electrochemical noise associated with corrosion mechanisms while corrosion is occurring at the surface of the tubes as they are exposed to combustion products. This noise is detected using a probe at the boiler waterwall surface that is connected to a corrosion monitor. The monitor contains a computer and software which determines a corrosion rate from the measured electrochemical noise. That rate is compared to a standard to determine if the rate is within acceptable limits. If not, the operator of the furnace or an Adaptive Process Controller (APC) is notified and adjusts one or more burners to change the combustion products that are responsible for the corrosion. Such an adjustment could be made by changing the amount of air or fuel being provided to the burner or other air slots or air ports. After that adjustment is made the furnace emissions could be checked for NOx, SOx and particulate emissions and further adjustments could be made to the burners to reduce those emissions.
    • 一种用于监测和减少炉锅炉管道腐蚀的方法测量与腐蚀机理相关的电化学噪声,同时当管暴露于燃烧产物时,管的表面发生腐蚀。 在连接腐蚀监测器的锅炉水壁表面使用探头来检测这种噪声。 显示器包含一个计算机和软件,它根据测得的电化学噪声确定腐蚀速率。 将该比率与标准进行比较,以确定速率是否在可接受的限度内。 如果没有,则通知炉子或自适应过程控制器(APC)的操作员并调整一个或多个燃烧器以改变对腐蚀负责的燃烧产物。 可以通过改变提供给燃烧器或其他空气槽或空气端口的空气或燃料的量来进行这种调节。 在进行调整之后,可以检查炉子排放物的NOx,SOx和颗粒物排放量,并可对燃烧器进行进一步的调整,以减少排放。