管输系统天然气泄漏量计算模式及泄漏检测最佳条件的确定  

STUDIES ON THE LEAKAGE CALCULATION MODELS AND OPTIMAL MEASUREMENT CONDITIONS OF NATURAL GAS TRANSMISSION PIPELINE SYSTEMS

作　　者：刘明礼[1] 向启贵[1] 戴忠[2] 

机构地区：[1]西南油气田分公司天然气研究院 [2]西南油气田分公司质量安全环保处

出　　处：《石油与天然气化工》2002年第1期47-51,共5页Chemical engineering of oil & gas

摘　　要：采用静态和动态试验对天然气泄漏量计算模式进行了筛选和验证 ,同时采用静态试验对不同风速、风向条件下天然气泄漏检测最佳条件进行筛选。试验结果表明 :采用折线积分法和相关曲线法计算泄漏量 ,较能反映输、配气站场设备泄漏的真实情况 ;在风速小于 0 .8m/s (包括静风 )时 ,距设备泄漏点下风向 1.5～ 2 .0cm处 ,由测试浓度计算泄漏速率的准确性较高 ;当风速为 0 .8～ 1.3m/s时 ,距设备泄漏点下风向 1.0cm左右 ,由测试浓度计算泄漏速率的准确性较高 ;当风速大于 1.3m/s时 。This article introduces the natural gas leakage calculation models sel ection and validation with static and dynamic test, and the optimal natural gas leakage detecting conditions at different wind direction and wind speed with sta tic test. The results show that when wind speed is 0.8m/s (including calm), it g ives accurate result at the detecting point of within 1.5～2cm downstream wind direction of the leaking point. When wind speed is 0.8～1.3m/s, the detecting po int at the 1 cm downstream wind direction of the leaking point is suitable. When wind speed is more than 1.3m/s, it is not suitable for carrying out natural gas leakage detection work.

关 键 词：天然气管输系统 天然气泄漏量 计算模式 泄漏 检测 检测仪 

分 类 号：TE85[石油与天然气工程—油气储运工程]