作者:田青林1,2, 李海勇1,2, 孙勇2, 李粮2, 吴炜3
作者单位:1. 四川天利科技有限责任公司,四川 绵阳 621010;
2. 中国航发四川燃气涡轮研究院,四川 成都 610500;
3. 中国航发湖南动力机械研究所,湖南 株洲 412002
关键词:航空发动机;涡轮盘;温度测量;遥测技术;系统标定;热电偶安装
摘要:
涡轮盘作为航空发动机中的一个关键热端部件,是影响发动机特性的一个重要因素,准确获取整机工作中涡轮盘的温度数据,对于发动机研制工作十分重要。该文设计出一种基于遥测技术的测温方法,以完成对某型航空发动机高温、高速旋转以及强振动工况条件下涡轮盘的温度测量。试验前完成电偶的安装和引线,发动机的测试改装,冷却系统的设计,并对遥测系统进行标定,遥测系统测试精度优于±0.6℃,数据真实可信。试验过程中,遥测系统工作正常,测点连续性好、存活率高。试验结果表明,通过“热电偶-遥测系统”的测量方法能有效获取发动机稳态和过渡态低压两级涡轮盘壁温腔温,具有较强的工程应用价值。
temperature measurement of low pressure turbine disk based on telemetry technology
tian qinglin1,2, li haiyong1,2, sun yong2, li liang2, wu wei3
1. sichuan tianli technology co., ltd., mianyang 621010, china;
2. aecc sichuan gas turbine establishment, chengdu 610500, china;
3. aecc hunan aviation powerplant research institute, zhuzhou 412002, china
abstract: as a key hot end component in aeroengine, turbine disk is an important factor that affects engine characteristics. it is very important for engine development to accurately obtain the temperature data of turbine disk during the whole engine operation. in this paper, a temperature measurement method based on telemetering technology is designed to measure the temperature of turbine disk under the conditions of high temperature, high-speed rotation and strong vibration of an aeroengine. before the test, the installation and lead of the thermocouple, the test and refit of the engine, the design of the cooling system were completed, and the telemetry system was calibrated. the test accuracy of the telemetry system was better than ±0.6℃, and the data was authentic. during the test, the telemetry system worked normally, with good continuity of measuring points and high survival rate. the test results show that the measurement method of "thermocouple telemetry system" can effectively obtain the wall temperature cavity temperature of low pressure two-stage turbine disk in steady state and transient state, and has strong engineering application value.
keywords: aero-engine;turbine disk;temperature measurement;telemetry technology;system calibration;thermocouple installation
2023, 49(12):23-28,40 收稿日期: 2022-08-23;收到修改稿日期: 2022-11-09
基金项目:
作者简介: 田青林(1987-),男,山东聊城市人,高级工程师,研究方向为航空发动机测试技术。
参考文献
[1] 王超, 苟学科, 段英, 等. 航空发动机涡轮叶片温度测量综述[j]. 红外与毫米波学报, 2018, 37(4):501-512.
[2] 姚艳玲, 代军, 黄春峰. 现代航空发动机温度测试技术发展综述[j]. 航空制造技术, 2015(12):103-107.
[3] 杨晨, 郑登强. 航空发动机涡轮转子叶片表面温度测量研究[c]//2008年航空试验测试技术峰会论文集. 2008.
[4] 杨东亮, 张波. 航空发动机涡轮后燃气温度检测系统设计及关键技术研究[j]. 燃气涡轮试验与研究, 2018, 31(2):55-58 62.
[5] 王浩. 铝铜共晶点黑体辐射源的研制及新型高稳定性标准辐射温度计在固定点下的稳定性实验研究[j]. 中国测试, 2021, 47(s1):211-214.
[6] 吴岳庚, 龚寅生, 张松林. 某压气机叶片动频测量的试验研究[j]. 燃气涡轮试验与研究, 1999(4):17-21.
[7] 彭建, 刘兵. 压气机转子叶片动频动应力测试技术和应用研究[j]. 燃气涡轮试验与研究, 2003(1):10-13.
[8] long s a, edney s l, reiger p a, et al. telemetry system integrated in a small gas turbine engine[j]. journal of engineering for gas turbines and power, 2012, 134(4):044501.
[9] 张帆, 王文廉, 王玉. 近场通信技术下的无源心率检测方法[j]. 中国测试, 2021, 47(12):14-22.
[10] 张瑜,朱双龙,任朔,等. stm32大气波导数据采集和传输系统设计与实现[j]. 中国测试, 2022, 48(8):124-129.
[11] 虞汉文, 朱洪兴, 顾文标, 等. 某型综合试验直升机旋翼试飞测试系统设计[j]. 直升机技术, 2018(4):65-68 44.
[12] 李仙丽, 罗乘川, 安奕忱, 等. 基于遥测技术的发动机涡轮转子叶片动应力测量[j]. 燃气涡轮试验与研究, 2014, 27(6):53-56.

