三旋流燃烧室点火阶段燃烧性能

莫妲; 万斌; 王新竹

doi:10.13224/j.cnki.jasp.2020.08.004

三旋流燃烧室点火阶段燃烧性能

doi: 10.13224/j.cnki.jasp.2020.08.004

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出版历程
- 收稿日期: 2019-12-29
- 刊出日期: 2020-08-28

Combustion performance of triple swirler combustor in ignition stage

Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China

摘要

摘要: 为研究三旋流燃烧室的点火熄火性能,对单头部燃烧室进行了地面和高空的点、熄火试验研究,测取了负温条件下的高空点火性能,借助高速摄像法录取了地面点火过程,采用燃气分析法对地面点火燃烧效率进行了测量,获得了单头部燃烧室的点、熄火性能和点火燃烧性能参数,以及火焰传播过程。结果表明:三旋流燃烧组织方式可在宽广的主燃区气流速度范围内,具有良好的点熄火性能,地面点火边界的燃烧充分性较高,燃烧效率约为80%,负温条件增加了点火难度,与常温点火边界相比,进气压力70 kPa时的负温点火的边界变窄了188%~375%,高空贫油熄火边界与点火边界接近,所获结果可为三旋流燃烧室设计提供参考。
- 高温升 /
- 三旋流燃烧室 /
- 点熄火性能 /
- 高速摄像 /
- 燃气分析法 /
- 燃烧效率
Abstract: In order to study the ignition and flameout performance of triple swirler combustor, experiments of single-head combustor were carried out on ground and high altitude. The high altitude ignition performance at negative temperature was measured. The ground ignition process was photographed by means of high-speed camera. Combustion efficiency of ground ignition was measured by gas analysis method. The ignition and flameout performance, the ignition combustion efficiency and the ignition process of single-head combustor were obtained. Results showed that the triple swirler combustion structure had good ignition and flameout performance over a wide range of flow velocity in the primary zone. The fuel burnt efficiently and the ground ignition combustion efficiency was about 80%. The negative temperature increased the difficulty of ignition. Compared with the normal temperature ignition boundary, the negative temperature ignition boundary narrowed by 188%-375% when the pressure was 70 kPa. High altitude flameout boundary was close to ignition boundary. The experimental results provide an important reference to the design of the triple swirler combustor.
- high temperature rise /
- triple swirler combustor /
- ,ignition and flameout performance /
- high speed photography /
- ,gas analysis method /
- combustion efficiency

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