Research of Heating Oil Pipeline Leak Detection Based on Negative Pressure Wave

The way of transport pipeline occupies an important place by its own unique advantages in the national economy. However, due to various reasons, the leakage accident of pipeline occurs frequently. Not only does it cause the loss of resources and environmental pollution, but it also brings the huge damage of property. This paper analyzes the principles and methods of position which are based on negative pressure wave, and a comprehensive platform of pipeline leakage detection is established which is based on the negative pressure wave. The paper analyzes the present research on pipeline leak detection and localization technology in detail. To the leak detection of heating oil pipeline, the problems which impact accurate position are analyzed in detail. The Global Positioning System (GPS) system is used to eliminate the influence of mistiming. For characteristics of heating crude oil which result in the variation of velocity, Rombery algorithm is used to solve the method how to position when the velocity of the transient negative pressure wave changes along the tube.