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发明公开
CN102564502A 煤粉浓度、煤粉流量的测量方法与测量装置 无效 - 撤回 转让

煤粉浓度、煤粉流量的测量方法与测量装置
摘要：
本发明公开一种煤粉浓度和煤粉流量的测量方法与测量装置；包括以下步骤：1)在一次风管道上选择输粉气流和煤粉混合前的气流参数测点I、混合后的气流参数测点II，混合前的气流参数测点I设在煤粉与空气即将混合之前的气流稳定处，混合后的气流参数测点II设在混合点后煤粉颗粒速度达到气流速度处，在煤粉颗粒速度达到气流速度后的水平直管道上确定流动压降测量管段L，在管段L的两端分别布置用于测量该管段压降的静压测点；2)测量混合前的静压P1，温度T1和全压P；3)测量混合后的静压P2和管段L的压降ΔPLD；4)计算混合前气流的气流密度ρ1；5)计算混合前气流速度V1；6)计算煤粉浓度煤粉浓度μ；7)计算煤粉浓度煤粉流量MP。
摘要（英）：

The invention discloses a method and a device for measurement of concentration and flow of pulverized coal, which includes steps: firstly, selecting flow parameter measuring point I before mixing of pulverized coal conveying air flow with pulverized coal and flow parameter measuring point II after mixing on a primary air pipeline, wherein the flow parameter measuring point I before mixing is arranged at a flow stable position before mixing of the pulverized coal with air, and the flow parameter measuring point II after mixing is arranged at a position where the pulverized coal speed reaches the flow speed after mixing; determining flow pressure drop measurement pipe section L on a horizontal straight pipeline; and arranging static pressure measuring points for measuring pressure drop of the pipe section at two ends of the pipe section L; secondly, measuring static pressure P1, temperature T1 and full pressure P before mixing; thirdly, measuring static pressure P2 and pressure drop delta PLD; fourthly, calculating flow density 1 before mixing; fifthly, calculating flow speed V1 before mixing, sixthly, calculating pulverized coal concentration mu; and seventhly, calculating pulverized coal flow MP.

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