马修元,韦飞,宣添星,王新培

• 1:国电环境保护研究院有限公司
• 2:国家能源集团科学技术研究院有限公司

摘要(Abstract)：

烟气流量是影响碳监测精度的关键因素之一，而分布不均、随机组负荷变化而改变的复杂流场环境是阻碍烟气流量精准计量的主要因素。以某电厂660 MW机组烟囱入口烟道为研究对象，基于烟气流场数值模拟结果对比分析了4种不同测量原理的流量计测量精度随点位数量、工艺布置形式等因素的影响变化规律。结果表明：与矩阵流量计相比，多点皮托管流量计对复杂流场环境的适应性更好；在测点数量同为28的情况下，矩阵流量计偏差是多点皮托管流量计的1.54倍；光闪烁流量计测量精度受安装位置标高影响较大，最大偏差是最小偏差的23.3倍，表明光闪烁流量计对复杂流场环境的适应性较差；超声波流量计可倾斜安装和多声道安装，工艺布置形式灵活多变，对复杂流场的适应性显著提高，双声道布置时可将偏差控制在±1.5%以内。研究成果为流量计设备选型及工艺设计提供了重要的理论依据和数据支撑，具有重要的理论研究及工程应用价值。

关键词(KeyWords)： 碳监测;复杂流场;流量计;数值模拟;工艺布置

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目（2022YFC3701504）;; 国家能源集团科学技术研究院有限公司科技项目（HB2023Y05） ~~

作者(Author): 马修元,韦飞,宣添星,王新培

DOI: 10.19666/j.rlfd.202312180

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