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基于TDLAS的天然气泄漏范围重构方法

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可调谐半导体激光光谱(TDLAS)技术因其灵出色的灵敏度、精度和抗干扰性的特性,现已被广泛应用于场站天然气泄漏的监测工作.为克服单台TDLAS激光遥测仪无法获得泄漏气体扩散影响范围的局限性,本文提出了一种基于多台TDLAS遥测仪协同的智能监测方法,通过在不同斜平面内对泄漏气团进行扫查,依据Brianchon定理获得不同斜平面内气体泄漏的外轮廓方程,重构天然气的三维空间泄漏影响区域,实时开展监测与预警.
Leakage area reconstruction of natural gas using TDLAS technology
Tunable Diode Laser Spectroscopy(TDLAS)technology is now widely used for natural gas leakage monito-ring at field stations due to its excellent sensitivity,accuracy and anti-interference properties.In order to overcome the limitation that a single TDLAS laser telemetry instrument cannot obtain the influence range of leakage gas diffusion,an intelligent monitoring method based on the collaboration of multiple TDLAS telemetry instruments is proposed in this paper.By scanning the leaked gas masses in different oblique planes,the outer contour equations of gas leakage in different oblique planes according to the Brianchon's theorem are obtained.The three-dimensional spatial leakage im-pact area of natural gas is reconstructed to carry out monitoring and early warning in real time.

natural gasTDLASleakage monitoringBrianchon's theorem

曹理想、文耀华、张伯君、周泽华、业成

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南京市锅炉压力容器检验研究院,江苏南京 210000

河海大学力学与材料学院,江苏南京 210000

天然气 TDLAS 泄漏监测 Brianchon定理

国家市场监管总局科技项目江苏省重点研发计划项目

2022MK157BE2023664

2024

激光与红外
华北光电技术研究所

激光与红外

CSTPCD北大核心
影响因子:0.723
ISSN:1001-5078
年,卷(期):2024.54(9)