取料装置能耗占设备总能耗的70%以上,直接影响设备的能耗和物理性能。为有效评估设备取料装置取料能力对设备物理性能的影响,研究了由于粉尘堆积造成的设备取料装置堵塞对取料装置性能的影响。采用粒子图像测速技术,在马赫数和雷诺数相似的环境下对不同工况的表面气流速度分布进行了实验测量,观测了激波结构,并计算了涡量、Q值等参数。根据实验测得的速度分布情况和力矩平衡公式,计算了不堵塞与堵塞工况下取料装置能耗变化情况。结果表明,取料装置堵塞后的取料装置头部产生的激波位置发生改变,激波位置后移2~3 mm
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