Abstract
The localization and identification of small gas leaks from a damaged gas pipeline is a very important but at the same time problematic and difficult process to carry out. Quick identification, estimation and precise localization of the leak leads to minimizing the financial and equipment losses resulting from damage. The most commonly used continuous internal methods of leak identification are based on pressure and mass intensity measurements flow at various places in the pipeline. The article presents a description of the construction of a test stand characterized by the correctors built in it and the examples of the signals obtained from its tests for different values of simulated leaks. The results obtained will be used to develop a new method for identifying and locating leakages from long pipelines. This method is based on the cross power spectral density of measured pipeline standard signals (pressure and mass flow) and the membrane displacement signals delivered from the test equipment (correctors) connected to the system.
Highlights
The gas pipelines are used for decades and during this period, due to progressive corrosion, mechanical leaks may occur
There are a number of methods to detect the occurrence of a gas leak, generally they can be divided into non-continuous and continuous monitoring. [1, 2]
Internal based systems, known as computational pipeline monitoring (CPM) uses different types of sensors to monitor internal pipeline parameters which are a basis for different methods of gas leak detection, in order to use them, it is necessary to use them in order to use them. installation of leak detection systems before the pipeline is started. [9, 11, 12, 13,14]
Summary
The gas pipelines are used for decades and during this period, due to progressive corrosion, mechanical leaks may occur. Continuous methods are used without interruption during the entire operation of the pipeline. They could be divided into external and internal based systems. [2, 3, 6] Externally based systems detect leaking product outside the pipeline (acoustic systems, fiber optic, dielectric cables, laser sensors). Internal based systems (e.g. pressure analysis, mass balance method), known as computational pipeline monitoring (CPM) uses different types of sensors to monitor internal pipeline parameters which are a basis for different methods of gas leak detection, in order to use them, it is necessary to use them in order to use them. 17th International Conference Diagnostics of Machines and Vehicles pipeline which provide an additional diagnostic signal in the form of weak interaction signals. [5, 8, 10] The connection of correctors to the pipelines does not affect the quality of the pipeline and is easy to implement
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