燃气轮机燃烧室烟粒生成所涉及的各种反应机理非常复杂,至今尚未搞清楚。但导致烟粒生成的条件.至少从工程观点.已经相当清楚。现已明白,排烟是由主燃区富油、缺氧区中生成很细的烟粒引起.如用压力雾化喷嘴,主要烟粒生成区处于燃烧室中心燃油喷雾锥内。这里燃烧产物迥流和雾锥相遇.温度较高,有油蒸汽,但缺氧、故生成大量烟粒,主燃区生成的烟粒子大部分在下游高温区域内氧化消耗掉。因而从排气冒烟的角度可将燃烧室看成为两部分:主燃区,决定烟粒子的生成率;中间区,决定烟粒子的消耗率,最后的排气冒烟是这两个区过程的 The various reaction mechanisms involved in the generation of soot in gas turbine combustors are complex and have not yet been clarified. But the conditions that led to the soot formation, at least from the engineering point of view, are pretty clear. It is now understood that exhaust fumes are caused by the formation of very fine soot in the main fuel-rich and anoxic zones, such as with pressure atomizing nozzles, where the main soot-forming zone is in the center of the fuel spray cone in the combustion chamber. The products of combustion here and the fog cone meet.Temperature is high, there is oil vapor, but lack of oxygen, so a large number of soot particles are generated, most of the smoke particles generated in the main combustion zone are oxidized and consumed in the downstream high temperature region. Therefore, from the point of view of exhaust gas, the combustion chamber can be regarded as two parts: the main combustion zone, which determines the generation rate of smoke particles; the middle zone, which determines the consumption rate of smoke particles, and the last exhaust smoke is the two zone processes of