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对带有两种不同头部结构(基准型为方案1,头部加装外套环为方案2)的三旋流单头部燃烧室进行了研究,对有两种头部结构的燃烧室进行了流场和燃烧场的数值模拟,在相同的进口试验条件下,用燃气分析法和15点测温耙分别测量了两种头部的燃烧效率、出口冒烟数和出口温度场.结果表明:三旋流器的燃烧效率超过了99.7%,加装外套环后其流场、温度场分布均较基准型有所改善,回流区更加饱满,油气混合和燃油雾化效果增强,出口温度分布系数(OTDF)和出口冒烟数分别降低了36%和25%.
A three-swirl single-head combustion chamber with two different head configurations (standard version 1 and head-mounted outer sleeve version 2) was studied. The combustion chamber with two head configurations The flow field and the combustion field were numerically simulated, and the combustion efficiencies of the two heads, the number of exported smoke and the outlet temperature field were measured respectively with the gas analysis method and the 15-point temperature measuring rake under the same inlet test conditions. : The combustion efficiency of the three-cyclone exceeds 99.7%. After the outer ring is installed, the distribution of flow field and temperature field are improved compared with the baseline type. The reflux zone is more full, the mixing effect of oil-gas mixture and fuel atomization is enhanced, and the outlet temperature distribution Coefficient (OTDF) and exports of cigarettes decreased by 36% and 25% respectively.