中文摘要：

利用ANSYS14.0软件,对某梭式窑的自吸式烧嘴在冷态、风门开度为10mm、烧嘴出口相对压强为0Pa、燃气相对压强分别为20000（工况1）和40000Pa（工况2）两种典型工况下内部的流动和传质过程进行了数值模拟.模拟得到的烧嘴出口流速等与实测值吻合良好.根据模拟结果,对烧嘴内部的流动和传质特性进行了研究,得出结论：工况1、2烧嘴燃气入口的平均流速分别为5.49、6.71m/s,燃气喷嘴中心处的速度分别为134、180m/s,烧嘴出口的平均流速分别为2.49、4.07m/s;因为管径突变,在烧嘴出口附近的贴壁处出现较大旋涡区,从而增加了流体机械能的损失;烧嘴轴线上存在压强较低的负压点,这是自吸式烧嘴能吸入空气的动力所在;工况1和2中,分别在混合管的1/2和3/4长度处,液化石油气与空气已基本混合均匀;工况1和2的实际一次空气消耗系数分别为0.92和1.06.

英文摘要：

Using ANSYS14.0 code numerical simulations were performed for the fow and mass transfer process in a shuttle kiln’s self-inhaler burner in the cold state and under two typical operating conditions, called as No. 1 and 2 operating condition. In the known simulation conditions the opening wide of the air damper was 10 mm, pressure p at the outlet of the burner was 0 Pa, and that at the fuel gas inlet was separately 20000 and 40000 Pa in No. 1 and 2 operating condition. Good agreement between the velocity value at the burner outlet gotten by the simulation and test indicated the correctness of the simulation. On basis of the simulation results, the fow and mass transfer characteristics inside the burner was researched and conclusions were drawn： 1. Separately, in No. 1 and 2 operating condition, the average velocity at the fuel gas inlet was 5.49 and 6.71 m/s, that at the burner outlet was 2.49 and 4.07 m/s, and the velocity on the center point of the fuel gas nozzle was 134 and 180 m/s. 2. In the region close to the wall near the burner outlet, there existed a big vortex caused by the sharply changing diameter of the burner and the big vortex would enlarge mechanical energy loss. 3. There existed low pressure points on the axis of the burner and the existence of such points caused power absorbing the air. 4. The liquefed petroleum gas was mixed nearly fully with the air at the 1/2 and 3/4 length cross section of the mixture tube of the burner, separately in No. 1 and No. 2 operation condition. 5. The actual consumption coeffcient of the primary air was 0.92 and 1.06 separately in No. 1 and 2 operation condition.