负压波衰减计算模型及最小泄漏率的分析  

Analysis of the Negative Pressure Wave Attenuation Model and the Smallest Leak Rate

作　　者：胡月[1] 于正林[1] 郑研斌 

机构地区：[1]长春理工大学机电工程学院,长春130022

出　　处：《机械工程师》2015年第11期38-40,共3页Mechanical Engineer

摘　　要：泄漏产生的负压波大小与管道的长度、运行工况、口径等相关,所以管道本身的可检测泄漏率与管道的特性相关。文中通过对负压波原理的理解,研究了负压波传播机理,同时探究负压波产生和衰减的计算模型。进而对管线上负压波的可检测泄漏率进行分析,结合实际的数据对模型进行验证,并得到可检测泄漏率与相应指标的关系。可以更为清楚地了解基于负压波法泄漏检测系统的应用范围。The size of the negative pressure wave generated by the leak has certain relations with the length, running status, diameter of the pipeline, so the detectable leak rate of pipeline has relationship with pipe characteristic. Based on the understanding of negative pressure wave principle, this paper studies the negative pressure wave propagation mechanism, and explores the calculation model of negative pressure wave and the attenuation. Then the detectable leakage ratio of pipeline negative pressure wave is analyzed. The model is verified by the actual data. The relation of detectable leak rate and corresponding index are obtained. It is helpful for mastering the application range of the leak detection system can be based on negative pressure wave method.

关 键 词：负压波法 压力波衰减 最小泄漏率 衰减模型 

分 类 号：TE973[石油与天然气工程—石油机械设备]