System implementing pipeline leak detection by utilizing infrasonic wave

A pipeline leakage and infrasound technology, which is used in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc., can solve the problem that the sudden detection of pressure waves is difficult to meet the practical application and difficult to adapt to the requirements of pipeline leakage detection.

Inactive Publication Date: 2010-09-15
中国石油化工股份有限公司管道储运分公司
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  • Abstract
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Problems solved by technology

[0005] It is difficult to adapt to the requirements of pipeline leakage detection in different environments, and it is difficult to meet the practical application in the field for the sudden detection of the pressure wave generated by the leakage

Method used

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  • System implementing pipeline leak detection by utilizing infrasonic wave
  • System implementing pipeline leak detection by utilizing infrasonic wave
  • System implementing pipeline leak detection by utilizing infrasonic wave

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Embodiment Construction

[0016] The system for realizing pipeline leakage detection using infrasonic waves according to the present invention has a preferred embodiment as follows:

[0017] An upstream detection point and a downstream detection point are set on the pipeline to be detected, and at least one infrasonic wave sensor is respectively installed at the upstream detection point and the downstream detection point, and the infrasonic wave signal collected by the infrasonic wave sensor due to pipeline leakage is input to the Signal acquisition and analysis system;

[0018] The signal acquisition and analysis system determines the location of the leak according to the time difference between the arrival of the infrasound signal at the upstream detection point and the downstream detection point multiplied by the propagation speed of the sound wave in the fluid, and exchanges information with the outside through the communication module.

[0019] The frequency response range of the infrasonic sensor...

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Abstract

The invention discloses a system implementing pipeline leak detection by utilizing an infrasonic wave. Two infrasonic wave sensors are respectively installed on an upstream detection point and a downstream detection point of a pipeline needing to be detected; infrasonic wave signals collected by the infrasonic wave sensors and generated by pipeline leakage are input to a signal acquisition analysis system. The signal acquisition analysis system determines the position of leakage generation according to the condition that the time difference of the infrasonic wave signals to upstream detectionpoint and to downstream multiplies the speed of the sound wave in fluid, and exchanges information with external through the two communication modules of GPRS and CDMA, fiber optic communication or Ethernet communication, etc. The invention discloses a system satisfying several leak conditions, and implementing pipeline leak detection by infrasonic at different working conditions.

Description

technical field [0001] The invention relates to a pipeline leakage detection technology, in particular to a system for realizing pipeline leakage detection by using infrasonic waves. Background technique [0002] Oil and gas pipelines are composed of pipelines connecting pressurization stations, distribution stations, and heating stations. The distance between the two pressurization stations ranges from 20 to 100 kilometers. Since most of the pipelines are located in the wild, installation cannot be provided. location, power supply and communication equipment, therefore, the effective detection distance of the pipeline leak detection system is required to be more than 20 kilometers. [0003] In the prior art, the detection technology applied to pipeline leakage is mainly negative pressure wave detection. Its principle is: when the pipeline leaks, the fluid at the leakage point will be lost rapidly, and the pressure will drop, resulting in a pressure difference between the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/06
Inventor 杨霄峰张健孙旭贾宗贤狄彦邹润于殿强杨文新尹振兴孙清源
Owner 中国石油化工股份有限公司管道储运分公司
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