多隔舱油箱惰化流量动态分配方法

杨家豪; 喻成璋; 刘卫华; 邵垒

doi:10.13224/j.cnki.jasp.20240004

多隔舱油箱惰化流量动态分配方法

doi: 10.13224/j.cnki.jasp.20240004

杨家豪^1,,
喻成璋²,
刘卫华³,
邵垒^1,*, ,

1.
重庆交通大学机电与车辆工程学院，重庆 400074
2.
中国航空工业集团公司中国直升机设计研究所，江西景德镇 333001
3.
南京航空航天大学航空学院，南京 210016

基金项目: 国家自然科学基金（52372331）；飞行器环境控制与生命保障工业和信息化部重点实验室开放课题（KLAECLS-E-202002）；重庆市自然科学基金面上项目（CSTB2022NSCQ-MSX1301）

详细信息

作者简介:
杨家豪（1999-），男，硕士生，主要从事飞机燃油惰化系统、富氮气体分配等方面的研究。E-mail：19999174158@163.com

通讯作者:
邵垒（1989-），男，讲师、硕士生导师，博士，主要从事惰化系统、燃油系统、传热传质等方面的研究。E-mail：shaolei@cqjtu.edu.cn

中图分类号: V228.1⁺1
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出版历程
- 收稿日期: 2024-01-02
- 网络出版日期: 2024-09-04

Dynamic distribution method of inert gas flow rate for multi-bay fuel tanks

1.
School of Mechatronics and Vehicle Engineering，Chongqing Jiaotong University，Chongqing 400074，China
2.
China Helicopter Research and Development Institute，Aviation Industry Corporation of China，Jingdezhen Jiangxi 333001，China
3.
College of Aerospace Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China

摘要

摘要:
为研究多隔舱油箱气相空间体积动态变化效应下的富氮气体流量需求，按照组分守恒方程、质量守恒方程和气体状态方程，建立了多隔舱油箱流量动态分配惰化模型，针对富氮气体流量提出了一种按照隔舱气相空间体积变化的动态分配方式；并以某型飞机多隔舱燃油箱为例，结合AMEsim仿真软件进行建模仿真，将动态分配、平均分配和比例分配的惰化效果进行了对比。研究结果显示：提出的动态分配方式较好地实现了多隔舱油箱氧气体积分数控制，富氮气体流量按动态分配方式所需惰化时间最短，相比于平均分配和比例分配方式，动态分配方式的气相空间惰化程度更高；从体积置换次数来看，动态分配方式可以有效减少体积置换次数3.5%～7.6%，且3种分配方式的体积置换次数由大到小依次为：平均分配、比例分配、动态分配。
- 惰化 /
- 多隔舱 /
- 富氮气体 /
- 流量分配 /
- 体积置换次数
Abstract:
To study the flow demand of nitrogen-enriched air under the effect of dynamic change of gas phase space volume of multi-bay fuel tanks, a dynamic distribution inerting model of multi-bay fuel tank flow was established according to the equations of conservation of components, conservation of mass, and gas state equations, and a dynamic distribution method based on the change of gas phase space volume of compartments was proposed for the flow of nitrogen-enriched air; a modeling simulation was carried out for the multi-bay fuel tank of a certain type of aircraft as an example, and combined with the AMEsim software, the modeling simulation was carried out to compare the inerting effects of dynamic distribution, average distribution, and proportional distribution. The results showed that: The proposed dynamic distribution method better realizes the oxygen volume fraction control of multi-bay tanks, the nitrogen-enriched air flow required the shortest inerting time according to the dynamic distribution method, and the dynamic distribution method had a higher degree of gas-phase spatial inerting compared with the average and proportional distribution methods; in terms of volumetric tank exchange, the dynamic distribution method can effectively reduce the number of volume exchanges from 3.5% to 7.6%, and the volumetric tank exchange of the 3 allocation methods are, in descending order: average distribution, proportional distribution, and dynamic distribution.
- inerting /
- multi-bay /
- nitrogen-enriched air /
- flow distribution /
- volumetric tank exchange

HTML

图 1 多隔舱油箱流量动态分配惰化原理图

Figure 1. Schematic diagram of dynamic flow distribution inerting for multi-bay tanks

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图 2 油箱结构

Figure 2. Structure of the fuel tank

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图 3 多隔舱油箱流量动态分配惰化模型流程图

Figure 3. Flow chart of the dynamic distribution of flow inerting model for multi-bay tanks

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图 4 多隔舱油箱流量动态分配惰化模型

Figure 4. Inerting model for dynamic distribution of flow in multi-bay tanks

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图 5 某飞机燃油箱示意图

Figure 5. Schematic of an aircraft fuel tank

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图 6 单舱惰化模型与文献[30]实验数据对比

Figure 6. Comparison of single-bay inerting models with experimental data from the literature [30]

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图 7 平均分配方式

Figure 7. Average distribution method

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图 8 比例分配方式

Figure 8. Proportional distribution method

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图 9 各隔舱气相空间变化

Figure 9. Gas-phase spatial variations in individual bays

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图 10 各隔舱动态分配流量

Figure 10. Dynamic distribution of flow to bays

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图 11 在非均匀进气下3种流量分配方式的氧气体积分数比较

Figure 11. Comparison of oxygen volume fractions of three flow distribution methods under non-uniform inlet airflow

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图 12 在均匀进气下3种流量分配方式的氧气体积分数比较

Figure 12. Comparison of oxygen volume fractions of three flow distribution methods under uniform inlet airflow

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图 13 3种流量分配方式的总体油箱平均氧气体积分数比较

Figure 13. Comparison of overall tank mean oxygen volume fractions for three flow distribution methods

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图 14 在非均匀进气下的3种流量分配方式的燃油惰化率比较

Figure 14. Comparison of tank inerting ratio for three flow distribution methods under non-uniform air intake

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图 15 在均匀进气下的3种流量分配方式的燃油惰化率比较

Figure 15. Comparison of tank inerting ratio for three flow distribution methods under uniform air intake

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图 16 在非均匀进气下的3种流量分配方式的N_VTE变化曲线

Figure 16. N_VTE variation curves for three flow distribution methods under non-uniform air intake

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图 17 在均匀进气下的3种流量分配方式的N_VTE变化曲线

Figure 17. N_VTE variation curves for three flow distribution methods under uniform air intake

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表 1 燃油转输控制逻辑

Table 1. Fuel transfer control logic

阶段	阶段说明	控制逻辑				泵状态
阶段	阶段说明	阀1	阀2	阀3	阀4	泵状态
初始状态	未运行	0	0	0	0	关闭
阶段1	隔舱4转输燃油	1	0	0	1	开启
阶段2	隔舱4燃油耗尽，隔舱3开始转输	1	0	1	0	开启
阶段3	隔舱3燃油耗尽，隔舱2开始转输	1	1	0	0	开启
阶段4	隔舱2燃油耗尽，燃油转输系统关闭	1	0	0	0	关闭

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