Pipe leakage monitoring device and method

Abstract

The invention relates to a pipe leakage monitoring device and method. The pipe leakage monitoring device comprises leakage monitoring assemblies arranged on the outer pipe wall of a monitored pipe atequal intervals. Each leakage monitoring assembly comprises a packaging shell and a leakage detector. Each leakage detector is arranged between the corresponding packaging shell and the outer pipe wall of the monitored pipe in a sealed manner. The portion, over each leakage monitoring assembly, of the ground is provided with a management device electrically connected with the corresponding leakagedetector. The pipe leakage monitoring method comprises the steps that S1, the leakage monitoring assemblies are arranged on the outer pipe wall of the monitored pipe at equal intervals; S2, the current data of each leakage detector in the corresponding leakage monitoring assembly are compared with a normal value to obtain a difference value, and when the difference value is larger than the set value, it is judged that pipe leakage happens and an alarm signal is generated; S3, the alarm signal and a position signal of the monitored pipe are sent to a server through a wireless signal transceiver unit. Every two adjacent leakage monitoring assemblies which are arranged at equal intervals can detect the leakage condition of the monitored pipe outside the pipe without damaging the internal pipe structure, and when leakage happens, the detection range can be effectively narrowed.

Description

【Technical field】 [0001] The invention relates to the technical field of pipeline detection, in particular to a pipeline leakage monitoring device and a pipeline leakage monitoring method. 【Background technique】 [0002] There are various pipelines including transportation of water, gas and oil buried in the city. Once leakage occurs, it will inevitably cause serious damage to the ecological environment and huge economic and property losses. At present, effective and cheap safety monitoring methods for oil and gas pipelines before leakage are still a worldwide problem. For a long time, a lot of research has been carried out at home and abroad on the use of stress wave method, negative pressure and other methods for leak detection. However, due to the insufficient processing of detection signals by various leak detection methods, the application is not ideal. Because the range to be detected is too large, it is time-consuming and labor-intensive. Moreover, the negative press...

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Problems solved by technology

For a long time, a lot of research has been carried out at home and abroad on the use of stress wave method, negative pressure and other methods for leak detection. However, due to the insufficient processing of detection signals by various leak detection methods, the application is not ideal. Because the detection range is too large, it is time-consuming and labor-intensive. Moreover, the negative pressure leak detection method needs to destroy the pipeline structure and insert the detection head into the pipeline, which is very inconvenient.

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