以 2 MPa 一次氮气压力为例对燃烧室内部温度进行分析，图表示不同一次氮气压力下的燃烧室内部温度云图（由左至右分别为2、3、4 MPa），可以更直观的解释上述分析。一方面，一次氮气压力的增加减少了燃烧室内部中高温区域的面积；另一方面，燃烧室上游雾化喷嘴近壁面区域的温度在不断下降，同时低温区也在不断向燃烧室中游扩展。综上所述，双气流雾化喷嘴技术可以在降低焰流温度的同时避免雾化喷嘴被高温烧蚀，且一次氮气压力越大，雾化喷嘴近对壁面的降温效果越好。

The internal temperature of the combustion chamber was analyzed using a primary nitrogen pressure of 2 MPa as an example ，the figure represents the internal temperature cloud of the combustion chamber under different primary nitrogen pressures, which can explain the above analysis more intuitively. On the one hand, the increase of primary nitrogen pressure reduces the area of the high temperature region inside the combustion chamber; on the other hand, the temperature of the near-wall area of the atomizing nozzle in the upstream of the combustion chamber is decreasing, while the low temperature region is expanding to the midstream of the combustion chamber. In summary, the double airflow atomization nozzle technology can reduce the flame temperature at the same time to avoid atomization nozzle by high temperature ablation, and the greater the primary nitrogen pressure, the atomization nozzle near the wall of the cooling effect is better.