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Detection method and device for pipeline leakage

A technology of pipeline leakage and detection method, which is applied in the field of pipeline leakage detection, can solve the problems of limited application scope, pipeline leakage, poor leakage detection accuracy, etc., and achieves the effect of improving pipeline leakage detection accuracy and improving detection accuracy.

Active Publication Date: 2018-09-28
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

[0005] The embodiment of the present application provides a pipeline leakage detection method and device to solve the technical problems of limited scope of application and poor leak detection accuracy in the existing methods, and achieve the technical effect of effectively improving the detection accuracy of pipeline leakage

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  • Detection method and device for pipeline leakage

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Embodiment Construction

[0044] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0045]Considering that most of the existing methods use the negative pressure wave method, that is, according to the characteristics of the negative pressure wave generated during leakage, the leakage location is found by calculating the time difference between the negative pressure wave reaching the two ends of the pipeline. However, bec...

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Abstract

The invention provides a detection method and device for pipeline leakage. The detection method comprises the following steps that 1, flow data and pressure data at the start position of a to-be-detected pipeline are obtained, and flow data and pressure data at the end position of the to-be-detected pipeline are obtained; and 2, according to the flow data and the pressure data at the start position of the to-be-detected pipeline and the flow data and the pressure data at the end position of the to-be-detected pipeline, a hydrodynamic transient model and a thermodynamic transient model of the to-be-detected pipeline are solved through the particle swarm optimization so as to obtain a result parameter, and the result parameter is used for determining whether the pipeline leakage occurs or not. According to the detection method, the particle swarm optimization is combined with hydrodynamics transient analysis and thermodynamic transient analysis, the transient models are solved through the particle swarm optimization so as to determine the running condition of the pipeline, and therefore the technical problem that an existing method is limited in application range and poor in leak detection accuracy is solved, and the technical effect of effectively improving the leakage detection accuracy is achieved.

Description

technical field [0001] The present application relates to the technical field of oil and gas storage and transportation management, in particular to a detection method and device for pipeline leakage. Background technique [0002] In the process of industrial production and transportation, many chemical substances will be transported to the corresponding destinations through pipelines. For example, crude oil is usually transported to distribution stations along the line through oil and gas transportation pipelines, and then the distribution stations supply crude oil to surrounding areas for use. During the transportation process, if the chemical substances in the pipeline leak, it will not only cause economic losses, but also cause environmental pollution. [0003] At present, most of the existing methods use the negative pressure wave method to detect the pipeline, so as to find the pipeline leakage in time. However, the above-mentioned method is relatively simple, and is...

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Application Information

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IPC IPC(8): F17D5/02G06N3/00
CPCF17D5/02G06N3/006
Inventor 张万梁永图聂四明徐宁张浩然
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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