燃气环境内高温部件红外测温试验方法  

Method of Infrared Temperature Measurement of High Temperature Components in Gas Environment

作　　者：苏文超 彭新 刘春宇 马慧 张哲衡 初少斌 吴云 SU Wen-chao;PENG Xin;LIU Chun-yu;MA Hui;ZHANG Zhe-heng;CHU Shao-bin;WU Yun(AECC Shenyang Engine Research Institute,Shenyang 110015,China;Second Military Representative Office of Air Force Equipment Department Stationed in Shenyang Area,Shenyang 110043,China)

机构地区：[1]中国航发沈阳发动机研究所,沈阳110015 [2]空军装备部驻沈阳地区第二军事代表室,沈阳110043

出　　处：《航空发动机》2023年第1期163-168,共6页Aeroengine

基　　金：航空动力基础研究项目资助。

摘　　要：针对航空发动机加力燃烧室高温部件温度场测试精度不高的问题,提出了一种燃气环境内高温部件红外测温试验方法。在同一时刻,分别用配装3.97~4.01μm窄带滤光片的红外热像仪和K型热电偶测试了燃气环境内高温部件在8种不同状态下的壁面温度分布,并对测试结果进行了对比,根据K型热电偶测试结果引入红外热像仪测试结果综合修正系数。结果表明:所引入的综合修正系数可有效地修正表面发射率、高温燃气、蓝宝石玻璃窗口以及环境大气等因素在不同温度条件下所带入的测试误差,经修正后红外热像仪和热电偶之间的测试偏差可控制在1.5%以内。该方法为后续航空发动机加力燃烧室高温构件温度分布测试提供了一种方法和思路。To tackle the low accuracy problem of temperature field measurement for high temperature components in aeroengine afterburner,an infrared temperature measurement test method for high temperature components in gas environment was proposed.Infrared thermal imager equipped with 3.97 to 4.01μm narrowband filter and K-type thermocouples were used to measure the surface temperature distribution of high temperature components simultaneously under 8 different conditions in the gas environment.The measurement results of the infrared thermal imager were compared with that of the thermocouples,and comprehensive correction coefficients for the infrared thermal imager were derived according to the results of the thermocouples.The results show that the coefficients can effectively correct the measurement errors caused by surface emissivity,high temperature gas,sapphire glass window,and ambient atmosphere.After the correction,the deviation between the results of the infrared thermal imager and the thermocouples can be controlled within 1.5%.The correction method provides a valuable reference for subsequent measurement of temperature distribution of high temperature components in aeroengine afterburner.

关 键 词：高温部件 温度修正 红外热像 燃气环境 加力燃烧室 航空发动机 

分 类 号：V264.3[航空宇航科学与技术—航空宇航制造工程]