许积庄,沈志刚,沈娅芳,王洋,潘胜中,陈模,张钧玮

• 1:厦门华夏国际电力发展有限公司
• 2:西安热工研究院有限公司

摘要(Abstract)：

针对中速磨煤机输运介质特点及入口管路、空间等限制，冷态纯空气条件下的测试方法无法保证磨煤机入口风量标定测试及时性的问题，热态运行工况下，选取流场稳定的磨煤机出口管道，采用等截面网格法测试各粉管动压和煤粉分配特性，并用循环迭代法获取风粉混合物流速，最终以实测的磨煤机出口风粉混合物流量与煤量、设计密封风量的差值对磨煤机入口风量进行标定。试验结果表明，在相同的实测原始数据基础上，采用上述方法获取的磨煤机入口流量更接近真实值，准确性较采用冷态纯空气条件下的计算结果提升约15百分点。该方法测试简单，实操性强，可有效提升中速磨煤机入口风量标定结果的准确性和及时性，同时，对相似工业环境中含粉气流流量的测试也有一定的指导作用。

关键词(KeyWords)： 中速磨煤机;风粉混合物;一次风量;电站锅炉

Abstract:

Keywords:

基金项目(Foundation): 国家电力投资集团有限公司科技项目（2023-KJ-005）~~

作者(Author): 许积庄,沈志刚,沈娅芳,王洋,潘胜中,陈模,张钧玮

DOI: 10.19666/j.rlfd.202401006

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