论文部分内容阅读
本文对直流式燃烧器和炉膛模化中相似条件的选取,第二自模化区临界雷诺数Re(II)的确定,平行射流混合特性的规律,以及切圆燃烧炉膛中造成一次风煤粉气流偏转贴墙的原因等方面进行了讨论并提供部分实验数据。在模化试验工作中,在进行平行射流流动轨迹和混合的研究时,相似单值条件之一是各股射流之间的动压比,对于相交射流,则取动量比。用测量气流方向角的方法测定第二自模
In this paper, the selection of similar conditions in DC burner and hearth furnace, the determination of the critical Reynolds number Re (II) in the second self-forming zone, the mixing law of parallel jets and the formation of primary air pulverized coal Air deflection wall stickers and other aspects of the discussion and provide some experimental data. In the modeling experiment, one of the similar single-valued conditions is the dynamic pressure ratio between the jets of the jets in the study of the trajectory and mixing of the parallel jets, and the jerk ratio for the jets. The second self-mode was determined by measuring the flow direction angle