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催化重整燃烧室能够产生氢体积分数高达16%的高温富油可燃燃气,所产生的可燃燃气从后支板供入到超燃模型发动机中,进行了直连式联调试验.在相同超音速来流状态下,与不通入可燃燃气的两种工况进行了压力、出口火焰形貌和壁面温度的对比,发现可燃燃气的加入能够在几乎不加入高压气堵情况下迅速着火,并能维持住稳定的超音速燃烧,在富油恶劣状态下,燃烧良好.结果表明,催化重整可燃成分在超燃模型发动机中起到了助燃和稳定燃烧的作用.
The catalytic reforming combustor can generate high-temperature oil-rich combustible gas with a volume fraction of hydrogen up to 16%, and the produced combustible gas is fed into the scramjet engine from the backplate, and the direct-coupled system is tested. Under the condition of sonic speed and flow, compared with the two working conditions without combustible gas, the comparison of flame morphology at outlet and wall temperature shows that the addition of combustible gas can rapidly fire with almost no high-pressure gas plugging, and can The results show that the catalytic reforming combustible components play a role of supporting combustion and stabilizing combustion in the scramjet engine.