管道高温壁面辐射对激光测量天然气含水量影响分析

doi:10.11949/0438-1157.20190415

化工学报 ›› 2019, Vol. 70 ›› Issue (S2): 215-219.DOI: 10.11949/0438-1157.20190415

管道高温壁面辐射对激光测量天然气含水量影响分析

孟凡斌¹(),段卜月¹,李栋¹(),王迪¹,吕妍²

1. 东北石油大学土木建筑工程学院，黑龙江大庆 163318
2. 东北石油大学电子科学学院，黑龙江大庆 163318

收稿日期:2019-04-14 修回日期:2019-04-26 出版日期:2019-09-06 发布日期:2019-09-06
通讯作者: 李栋
作者简介:孟凡斌（1987—），男，博士研究生，讲师，mengfanbin99@163.com
基金资助:
中国博士后科学基金特别资助项目(2018T110267);中国石油科技创新基金研究项目(2018D-5007-0608);黑龙江省教育厅省属高校科技成果研发培育项目(TSTAU-R2018020);东北石油大学引导性创新基金项目(2017YDL-08);东北石油大学研究生创新科研项目(JYCX_CX05_2018)

Influence of high temperature wall radiation on laser measurement of water content in natural gas

Fanbin MENG¹(),Buyue DUAN¹,Dong LI¹(),Di WANG¹,Yan LYU²

1. School of Civil Engineering and Architecture, Northeast Petroleum University, Daqing 163318, Heilongjiang, China
2. School of Electronic Science, Northeast Petroleum University, Daqing 163318, Heilongjiang, China

Received:2019-04-14 Revised:2019-04-26 Online:2019-09-06 Published:2019-09-06
Contact: Dong LI

摘要/Abstract

摘要：

天然气含水量影响管道输送品质及输送安全，非接触激光检测作为目前气体浓度测量的主要方式之一，已被广泛应用。针对激光检测过程中存在高温壁面杂散辐射问题，设计了管输天然气含水量激光在线检测光路，利用TracePro光学仿真软件模拟管道壁面高温杂散辐射对探测器接收信号的影响，并基于光谱吸收原理分析该过程的光学特性。研究结果表明，在激光检测管输天然气含水量过程中，存在较为明显的杂散辐射，且在高温环境下，杂散辐射影响更为强烈。

关键词: 天然气, 测量, 高温, 辐射

Abstract:

Water content of natural gas affects the quality and safety of pipeline transportation. As one of the main methods of gas concentration detection, non-contact laser detection has been widely used. In order to solve the problem of stray radiation on high temperature wall during laser detection, an on-line laser detection optical path for water content of natural gas pipeline was designed. The influence of stray radiation on the received signal of detector was simulated by TracePro. The optical characteristics of the process were analyzed based on the principle of spectral absorption. The results show that there is obvious stray radiation in the process of measuring water content of natural gas in pipeline by laser, and the stray radiation effect is stronger in high temperature environment.

Key words: natural gas, measurement, high temperature, radiation

中图分类号:

X 830

孟凡斌, 段卜月, 李栋, 王迪, 吕妍. 管道高温壁面辐射对激光测量天然气含水量影响分析[J]. 化工学报, 2019, 70(S2): 215-219.

Fanbin MENG, Buyue DUAN, Dong LI, Di WANG, Yan LYU. Influence of high temperature wall radiation on laser measurement of water content in natural gas[J]. CIESC Journal, 2019, 70(S2): 215-219.

图/表 5

图1 反射式在线检测光路系统图

Fig.1 Optical system diagram of reflective on-line detection

图2 杂散辐射表面能量传输原理

Fig.2 Principle of energy transmission on surface of stray radiation

图3 探测器接收光路图（523 K）

Fig.3 Detector receiving optical path map（523 K）

图4 探测器表面辐照度分布

Fig.4 Surface irradiance distribution of detector

图5 辐照密度对比曲线

Fig.5 Radiation density contrast curve

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管道高温壁面辐射对激光测量天然气含水量影响分析

Influence of high temperature wall radiation on laser measurement of water content in natural gas

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