负压波衰减系数及普通弯管泄漏检测研究  

Research on Negative Pressure Wave Attenuation Coefficient and Bending Pipeline Leakage Detection

作　　者：阳子轩[1,2] 范世东[1] 江攀[1] 熊庭[1] 

机构地区：[1]武汉理工大学能源与动力工程学院 [2]中国人民解放军96212部队

出　　处：《武汉理工大学学报（交通科学与工程版）》2012年第5期997-1000,1004,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：高等学校学科创新引智计划项目资助(批准号:B08031)

摘　　要：负压波在管道中的传播是能量传播的一种形式,因而在管道传播过程中会有能量的损失,这种损失在经过弯管时损耗会更大.发生泄漏后,管道中间若有弯头,负压波在这一段会有反射、折射现象发生,使负压波的能量减小.文中从实验出发,研究弯头处的负压波传播规律,对负压波衰减系数的影响因素进行研究,得出管道泄漏计算时的弯头当量长度计算公式,并将此分析结果与以前的工作进行对比,验证了此结果的合理性.Negative pressure wave spread is a special form of energy spread, while spreading in the pipeline it could cause energy losses, such losses will be greater if the wave goes through a bending pipeline. If there is leakage in the pipeline including an elbow, negative pressure wave will generate reflection, refraction phenomenon which decrease the energy loss. This paper is based on the experience, then studies the spreading law of negative pressure wave and the factors of the negative pressure wave attenu- ation coefficient. Finally, it obtains the calculation formula for equivalent length of elbow, then compares the result with the previous study, it could verify the result in this paper reasonable.

关 键 词：当量长度 负压波 衰减系数 管道泄漏检测 

分 类 号：TE973.6[石油与天然气工程—石油机械设备]