Emission monitoring system and method
    1.
    发明授权
    Emission monitoring system and method 有权
    排放监测系统及方法

    公开(公告)号:US06701255B2

    公开(公告)日:2004-03-02

    申请号:US09844282

    申请日:2001-04-30

    IPC分类号: G01N3100

    摘要: An emission measuring system and method provide an accurate, real-time calculation of a particular material emitted from an emission source. Specifically, a CEM system installed in an industrial stack can include a dilution probe located in the stack and a data analyzer that records and analyzes characteristic data of the materials sampled by the dilution probe. A dilution ratio is used to correct for the addition of dilution gas into the stack gas sample to determine the concentration of a particular material that is being emitted from the stack. The dilution ratio is based on a molar flow rate, which can be determined by using specific algorithms and measurements.

    摘要翻译: 排放测量系统和方法提供从发射源发射的特定材料的精确的实时计算。 具体来说,安装在工业堆栈中的CEM系统可以包括位于堆叠中的稀释探针和用于记录和分析由稀释探针采样的材料的特征数据的数据分析器。 稀释比用于校正将稀释气体添加到堆叠气体样品中以确定从堆叠发射的特定材料的浓度。 稀释比基于摩尔流速,其可以通过使用特定算法和测量来确定。

    Adjustable flow control elements for balancing pulverized coal flow at coal pipe splitter junctions
    2.
    发明授权
    Adjustable flow control elements for balancing pulverized coal flow at coal pipe splitter junctions 有权
    可调节的流量控制元件,用于平衡煤管分流器接合处的煤粉流

    公开(公告)号:US06789488B2

    公开(公告)日:2004-09-14

    申请号:US10258630

    申请日:2002-10-24

    IPC分类号: F23L1300

    摘要: An adjustable device installed at the inlet of conventional junctions/splitters (116) for on-line control of the distribution of coal among the outlet pipes is herein disclosed. The device includes a plurality of flow control elements (60) each positioned upstream of a plurality of flow channels in the riffler (50) for directing coal flow to the outlet pipes. Each flow control element preferably comprises a rounded convex edge leading to straight tapered sides (FIG. 9). The surfaces of the sides may be roughened or textured (63) for promoting turbulent boundary layers (FIG. 9). In addition, conventional fixed or variable orifices may be used in combination with the flow control elements for balancing primary air flow rates. The device allows fine-adjustment control of coal flow rates when used in combination with the slotted riffler, yet it has negligible effect on the distribution of primary air. The combination of the riffler assembly and the coal flow control elements (60) results in closely balanced coal flow. Balanced coal flow is imperative to the optimization of the operation of pulverized coal boiler systems (i.e. reduced pollutant emissions, improved combustion efficiency).

    摘要翻译: 本文公开了一种可调节装置,其安装在常规接合/分离器(116)的入口处,用于在出口管中煤分配的在线控制。 该装置包括多个流量控制元件(60),每个流量控制元件(60)均位于消音器(50)中的多个流动通道的上游,用于将煤流引导至出口管。 每个流量控制元件优选地包括通向直锥形侧面的圆形凸缘(图9)。 侧面的表面可以被粗糙化或纹理化(63)以促进湍流边界层(图9)。 此外,传统的固定或可变孔可以与流量控制元件结合使用,以平衡一次空气流速。 该设备允许在与开槽式混合机组合使用时对煤流速进行微调控制,但对一次空气的分配影响微乎其微。 烟囱组件和煤流控制元件(60)的组合导致煤流量的平衡。 平衡煤流是煤粉锅炉系统运行优化(即降低污染物排放,提高燃烧效率)的必要条件。