Experimental Investigation on Fiber Thermocouples Used in Brush Seals for Temperature Measurements

Shouqing Huang; Shuangfu Suo; Yongjian Li; Jun Ding; Yuming Wang

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Experimental Investigation on Fiber Thermocouples Used in Brush Seals for Temperature Measurements

机译：刷式密封中用于测量温度的纤维热电偶的实验研究

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A type of fiber thermocouple is applied to a brush seal in order to obtain the temperature of the bristle-rotor friction zone. Using a brush seal test rig, the temperature measurements utilizing a fiber thermocouple, infrared thermometer, and common thermocouple are compared and studied. The fiber thermocouple is studied under various operational conditions consisting of different pressure and speed variations, rotor-bristle interferences, and eccentricities. Some interesting phenomena and characteristics of brush seals are revealed during these experiments. Some preliminary wear results of a fiber thermocouple are also presented. The results demonstrate the superiority of fiber thermocouples when used in narrow spaces, high temperature, and pressure environments within the heart of an aero-engine.

机译：一种类型的纤维热电偶被应用于电刷密封，以便获得刷毛转子摩擦区域的温度。使用刷式密封测试仪，对使用光纤热电偶，红外测温仪和普通热电偶的温度测量进行了比较和研究。在各种操作条件下研究光纤热电偶，这些条件包括不同的压力和速度变化，转子-刷毛干扰和偏心率。在这些实验中揭示了一些有趣的现象和刷式密封的特性。还介绍了光纤热电偶的一些初步磨损结果。结果表明，在航空发动机心脏内狭窄的空间，高温和高压环境中使用时，光纤热电偶具有优越性。

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《Journal of Engineering for Gas Turbines and Power》 |2014年第9期|091602.1-091602.6|共6页
作者
Shouqing Huang; Shuangfu Suo; Yongjian Li; Jun Ding; Yuming Wang;
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State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China;

State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China;

State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China;

China University of Mining and Technology, Beijing 100083, China;

State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China;

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3. Numerical Research of the Measurement Error of Temperature Thermocouples with the Isolated Seal [J] . Yuliana K. Atroshenko1, Alena A. Bychkova, Pavel A. Strizhak1 MATEC Web of Conferences . 2015,第1期

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8. Bragg Grating Reflector Fiber Laser for Vibration Measurement: Theoretical andExperimental Investigation with Emphasis on the Frequency Response (Bragg-Gitter Fiber-Laser for Vibrasjonsmaling) [R] . Karlsson, A., Bjoernson, J. O., Havsgard, G. B. 1996

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Experimental Investigation on Fiber Thermocouples Used in Brush Seals for Temperature Measurements

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