天然气泄漏检测方法研究进展  

Research Advance of Natural Gas Leakage Detection Technology

作　　者：张学洪[1] 

机构地区：[1]中石化天然气川气东送管道分公司,湖北武汉430074

出　　处：《内蒙古石油化工》2012年第17期12-16,共5页Inner Mongolia Petrochemical Industry

摘　　要：泄漏是造成天然气损耗的主要原因之一,主要从取样检测、光学、声学和泄漏量检测等方面综述了天然气泄漏检测技术的发展现状,剖析了各种方法的优缺点及适应性。动态模型法、负压波法和压力点分析法等基于软件的检测方法具有连续检测、反应速度快等特点,但对漏点定位不精确、误报率较高,声检测技术、光纤传感技术等基于硬件的检测方法具有广阔的应用前景。火焰电离检测、催化燃烧等方法具有极高的准确性,可与连续检测方法配合使用。实现连续、实时监测,提高对微小、缓慢泄漏的检测灵敏度,仍是天然气泄漏检测领域研究的热点。Leakage is the primary reason for the loss of natural gas.In this paper,some natural gas leakage detection technologies,which relating to gas sampling method,optical method and acoustic method,are reviewed,and their advantages and weaknesses are analyzed.The results shows that,the software based methods,such as dynamic modeling,negative pressure wave detection method and pressure point analysis,process the advantages of continuous monitor,and the weaknesses of imprecision location and high false alarm rate.And the hardware based technologies,for example,acoustic detection method and optical fiber sensing,are prospective for application.Flame ionization detection and catalytic combustible methods are characterized by high precision,and they can be used accompany with the continuous monitor methods.Monitoring the tiny leakage continuously and enhancing its detection sensitivity is the hot point of natural gas leakage detection research.

关 键 词：天然气 管道 设备 泄漏 检测技术 

分 类 号：TE973.6[石油与天然气工程—石油机械设备]