摘要
针对现有煤气化工艺中合成气管道温度监测问题,研究基于拉曼散射的分布式光纤测温系统,研制了带不锈钢套管的耐高温传感光纤,模拟合成气管道周围温度分布,在合成气管道现场铺设434.6 m的分布式耐高温光纤进行实验研究。实验结果表明:基于拉曼散射的分布式光纤测温系统测温范围为0~350℃,测温误差为±2℃,空间分辨率0.5 m,系统能够完成对煤气化合成气管道温度的在线监测,同时可以对温度异常点进行空间定位。
To solve the temperature monitoring problem of syngas pipeline in the existing coal gasification process, a distributed optical fiber temperature measuring system based on Raman scattering is studied. A high temperature resistant sensing fiber with stainless steel coating is developed to simulate the temperature distribution around syngas pipeline. The high temperature resistant optical fiber with 434.6 m length is laid on the site of the syngas pipeline for experimental research. The experimental results show that the distributed optical fiber temperature measurement system based on Raman scattering has a temperature measurement range of 0~350℃,the temperature measurement error is ±2℃,and the spatial resolution is 0.5 m. The system can complete the online temperature monitoring of coal gasification syngas pipeline, and at the same time it can spatially locate the temperature anomalies.
作者
胡子昂
王强
谷小红
朱凯
徐晓萌
吴琳琳
胡栋
HU Zi-ang;WANG Qiang;GU Xiao-hong;ZHU Kai;XU Xiao-meng;WU Lin-lin;HU Dong(0x09College of Mechanical and Electrical Engineering,China University of Metrology(CUMS),Hangzhou 310018,China;College of Quality and Safety Engineering,China University of Metrology(CUMS),Hangzhou 310018,China;Taian Special Equipment Inspection and Research Institute,Taian 271099,China)
出处
《激光与红外》
CAS
CSCD
北大核心
2023年第1期90-96,共7页
Laser & Infrared
基金
国家重点研发计划项目(No.2018YFC0808500)资助。
关键词
分布式光纤测温
煤气化
合成气管道
高温监测
distributed optical fiber temperature measurement
coal gasification
syngas outlet pipeline
high temperature monitoring
