抽吸气流量对催化惰化系统性能影响

王晨臣; 潘俊; 王洋洋; 段伟杰

doi:10.13700/j.bh.1001-5965.2021.0026

抽吸气流量对催化惰化系统性能影响

doi: 10.13700/j.bh.1001-5965.2021.0026

1.
航空工业南京机电液压工程研究中心航空机电系统综合航空科技重点实验室, 南京 211106
2.
航空工业直升机设计研究所, 天津 333001

详细信息

通讯作者:
王晨臣, E-mail: 583812642@qq.com

中图分类号: V37;V228
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出版历程
- 收稿日期: 2021-01-16
- 录用日期: 2021-04-24
- 网络出版日期: 2021-05-07
- 整期出版日期: 2022-07-20

Effect of suction flow rate on performance of catalytic inerting system

1.
Aviation Key Laboratory of Science and Technology on Electromechanical System Integration, AVIC Nanjing Engineering Institute of Aircraft System, Nanjing 211106, China
2.
AVIC Helicopter Design and Research Institute, Tianjin 333001, China

More Information

Corresponding author: WANG Chenchen, E-mail: 583812642@qq.com

摘要

摘要:
基于耗氧型惰化系统惰化原理，建立了绿色低温催化惰化系统（3CGIS）的AMESim仿真模型，研究了绿色低温催化惰化系统抽吸气流量对惰化时间的影响，以及飞行包线内燃油箱气相空间氧气体积分数变化。将计算结果与试验数据进行对比，结果表明，飞行包线内燃油箱气相空间氧气体积分数计算结果与试验结果基本一致，验证了仿真模型的正确性。在此基础上，得到抽吸气流量与惰化时间近似呈反比关系；当惰化时间一定时，抽吸气流量随载油率的降低而增加；针对下降阶段燃油箱气相空间氧气体积分数可能超过12%，提出一种双流量惰化模式设计方法，可保证氧气体积分数在整个飞行包线内低于12%。仿真结果为绿色低温催化惰化系统的设计与优化提供了依据。
- 耗氧惰化 /
- 低温催化 /
- 抽吸气流量 /
- 惰化时间 /
- 氧气体积分数 /
- AMESim仿真
Abstract:
Based on the principle of oxygen-consuming inerting system, the AMESim simulation model of low temperature controllable oxygen consumed catalytic green inerting system (3CGIS) was established. The effect of the suction flow rate of 3CGIS on the inerting time, and the change of the oxygen volume fraction in the fuel tank ullage under the flight envelope were researched. The prediction of oxygen volume fraction under the entire flight envelope was verified against the experimental data, showing a satisfactory agreement, and its validity wasvalidated with the comparison of results. On the basis of modeling, the suction flow rate is approximately inversely proportional to the initial inerting time were obtained; under a certain inerting time, the required suction flow rate increaseswith the decrease of fuel load. Aiming at the possibility that the oxygen volume fraction in the fuel tank ullage during the descent stage may exceed 12%, a dual-flow inerting mode design method is proposed to ensure that the oxygen volume fraction is less than 12% under the entire flight envelope. The results can be provided as a reference for design and optimization of low temperature controllable oxygen consumed catalytic green inerting system.
- oxygen-consuming inerting /
- low temperature catalysis /
- suction flow rate /
- inerting time /
- oxygen volume fraction /
- AMESim simulation

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图 1 3CGIS惰化系统流程

Figure 1. Flowchart of 3CGIS inerting system

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图 2 3CGIS惰化系统AMESim仿真模型

Figure 2. AMESim simulation model of 3CGIS inerting system

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图 3 仿真结果与试验数据对比

Figure 3. Comparison of simulation results and test data

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图 4 载油率0%下惰化时间随抽吸气流量变化

Figure 4. Inerting time varies with suction flow rate at 0% fuel load

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图 5 载油率50%下惰化时间随抽吸气流量变化

Figure 5. Inerting time varies with suction flow rate at 50% fuel load

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图 6 载油率97%下惰化时间随抽吸气流量变化

Figure 6. Inerting time varies with suction flow rate at 97% fuel load

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图 7 惰化时间10 min对应飞行包线下氧气体积分数变化

Figure 7. Variation of oxygen volume fraction in flight envelope at 10 min inerting time

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图 8 惰化时间20 min对应飞行包线下氧气体积分数变化

Figure 8. Variation of oxygen volume fraction in flight envelope at 20 min inerting time

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图 9 惰化时间10 min双流量模式下氧气体积分数变化

Figure 9. Variation of oxygen volume fraction in dual-flow inerting mode at 10 min inerting time

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图 10 惰化时间20 min双流量模式下氧气体积分数变化

Figure 10. Variation of oxygen volume fraction in dual-flow inerting mode at 20 min inerting time

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表 1 不同惰化时间所需抽吸气流量

Table 1. Required suction flow rate under different inerting time

惰化时间/min	抽吸气流量/(L·min^-1)
惰化时间/min	载油率0%	载油率50%	载油率97%
5	6 160	2 400	256
10	3 100	1 400	172
15	2 070	1 030	137
20	1 550	826	115

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表 2 飞行包线信息

Table 2. Flight envelope information

状态	轮挡时间/min	飞行高度/m	轮挡耗油/kg
滑出	7	0	189
起飞	2	0~457	630
爬升	29	457~12 000	4 992
巡航	755	12 000	67 987
下降	21	12 000~457	373
进场	6	457	240
滑入	5	0	135

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表 3 双流量惰化模式下抽吸气流量

Table 3. Suction flow rate in dual-flow inerting mode

惰化时间/ min	载油率/ %	抽吸气流量/(L·min^-1)
惰化时间/ min	载油率/ %	滑出、起飞、爬升、巡航阶段	下降、进场、滑入阶段
10	0	3 100	2 280
10	50	1 400	2 280
10	97	172	2 450
20	0	1 550	2 280
20	50	826	2 280
20	97	115	2 550

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