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燃气分析法测量小尺寸全环燃烧室出口温度场

资海林 马瑛 张阳 李维 张险

资海林, 马瑛, 张阳, 等. 燃气分析法测量小尺寸全环燃烧室出口温度场[J]. 航空动力学报, 2024, 39(7):20220212 doi: 10.13224/j.cnki.jasp.20220212
引用本文: 资海林, 马瑛, 张阳, 等. 燃气分析法测量小尺寸全环燃烧室出口温度场[J]. 航空动力学报, 2024, 39(7):20220212 doi: 10.13224/j.cnki.jasp.20220212
ZI Hailin, MA Ying, ZHANG Yang, et al. Outlet temperature field measurement for small annular combustor by gas analysis[J]. Journal of Aerospace Power, 2024, 39(7):20220212 doi: 10.13224/j.cnki.jasp.20220212
Citation: ZI Hailin, MA Ying, ZHANG Yang, et al. Outlet temperature field measurement for small annular combustor by gas analysis[J]. Journal of Aerospace Power, 2024, 39(7):20220212 doi: 10.13224/j.cnki.jasp.20220212

燃气分析法测量小尺寸全环燃烧室出口温度场

doi: 10.13224/j.cnki.jasp.20220212
详细信息
    作者简介:

    资海林(1980-),男,高级工程师,硕士,主要从事航空发动机燃烧室测试方面的研究

  • 中图分类号: V231.2

Outlet temperature field measurement for small annular combustor by gas analysis

  • 摘要:

    为探索燃气分析法测量小尺寸全环燃烧室出口温度场的应用,介绍了适应小尺寸全环燃烧室出口通道高度的多点非混合式水冷燃气取样探针设计,燃烧室出口分别布置2 支5 点非混合式水冷燃气取样探针和双铂铑热电偶,随位移机构旋转180°,实现正、反双向数据采集,测量二氧化碳(CO2)、一氧化碳(CO)和未燃碳氢化合物(UHC)3种组分的体积分数进而计算燃气温度。试验结果表明:燃气分析法与热电偶法测量的燃烧室出口温度分布基本一致,两者测量的相对偏差在2%以内;同时表明燃气分析法在测量航空发动机燃烧室温度场具有测温上限高、测量准确的优点。

     

  • 图 1  测温用燃气分析系统示意图

    Figure 1.  Schematic diagram of gas analysis system for temperature measurement

    图 2  拉瓦尔喷管结构形式取样孔示意图

    Figure 2.  Schematic diagram of laval nozzle structure sampling hole

    图 3  5点非混合式水冷燃气取样探针结构图

    Figure 3.  Structure diagram of 5-point non-mixed water-cooled gas sampling probe

    图 4  计算模型网格

    Figure 4.  Computational model grid

    图 5  取样孔内样气静温数值计算

    Figure 5.  Numerical calculation of static temperature of the sample gas in the sampling hole

    图 6  取样孔内样气静压数值计算

    Figure 6.  Numerical calculation of static pressure of the sample gas in the sampling hole

    图 7  取样孔内样气流速数值计算

    Figure 7.  Numerical calculation of velocity of the sample gas in the sampling hole

    图 8  水冷燃气取样探针的冷却水温度数值计算

    Figure 8.  Numerical calculation of cooling water temperature of water-cooled gas sampling probe

    图 9  水冷燃气取样探针的头部外壳壁温数值计算

    Figure 9.  Numerical calculation of head shell temperature of water-cooled gas sampling probe

    图 10  样气预处理系统示意图

    Figure 10.  Schematic diagram of sample pretreatment system

    图 11  试验段结构示意图

    Figure 11.  Schematic diagram of test section structure

    图 12  5点裸露气冷式双铂铑热电偶结构示意图

    Figure 12.  Schematic diagram of 5-point exposed air-cooled double platinum-rhodium thermocouple structure

    图 13  燃烧室出口截面测点分布示意图

    Figure 13.  Distribution diagram of measuring points at combustor outlet section

    图 14  位移机构工作方式图

    Figure 14.  Working mode diagramof displacement mechanism

    图 15  程序运行界面

    Figure 15.  Program running interface

    图 16  燃烧室出口温度场分布图(燃气分析法、状态1)

    Figure 16.  Combustor outlet temperature field (gas analysis, test state1)

    图 17  燃烧室出口温度场分布图(热电偶、状态1)

    Figure 17.  Combustor outlet temperature field (thermocouple, test state1)

    图 18  燃烧室出口温度场分布图(燃气分析法、状态2)

    Figure 18.  Combustor outlet temperature field (gas analysis, test state 2)

    图 19  燃烧室出口温度分布图(热电偶、状态2)

    Figure 19.  Combustor outlet temperature field (thermocouple, test state 2)

    表  1  气体分析仪测量范围及精度

    Table  1.   Measurement range and accuracy of gas analyzer

    测量原理 测量参数 测量范围 精度/%
    非分光红外分析法 CO/10−6 0~2500 ±1.0
    非分光红外分析法 CO2/10−2 0~10 ±1.0
    0~10 ±5.0
    火焰离子检测法 UHC/10−6 10~100 ±2.0
    100~5000 ±1.0
    下载: 导出CSV

    表  2  试验状态参数

    Table  2.   Test state parameters

    试验
    状态
    进口压力
    p3/kPa
    进口温度
    T3/K
    进口空气流量
    Wa/(kg/s)
    油气比
    f
    1 370 490 1.00 0.020
    2 1500 710 3.65 0.024
    下载: 导出CSV

    表  3  油气比对比

    Table  3.   Comparisons of fuel-air ratio

    试验
    状态
    流量法
    油气比
    燃气分析法
    油气比
    相对偏差/%
    10.02000.02094.50
    20.02400.02483.33
    下载: 导出CSV

    表  4  测温结果对比

    Table  4.   Comparisons of temperature measurement results

    试验状态 Tt4avg Tt4avr 相对偏差/%
    1 0.589 0.579 1.73
    2 0.788 0.779 1.16
    注:Tt4avg为燃气分析法测量的燃烧室出口平均温度;Tt4avr为双  铂铑热电偶测量的燃烧室出口平均温度。
    下载: 导出CSV
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  • 收稿日期:  2022-04-14
  • 网络出版日期:  2024-01-25

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