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Method and device for intelligent diagnosis and location of leakage fault of fluid delivery pipeline

A technology for pipeline leakage and fluid transportation, which is applied in the field of detection and positioning of fluid transportation pipeline leakage

Inactive Publication Date: 2006-03-22
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

[0003] Aiming at the problems existing in the existing fluid conveying pipeline leakage monitoring technology, the present invention provides a real-time sampling of pipeline operating parameters as few as possible, intelligent, anti-noise, high sensitivity, accurate positioning, applicable to Various fluid conveying pipelines, fluid conveying pipeline leakage location methods and devices, which can correctly distinguish between normal adjustment of pipelines and different working conditions of leakage failures

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  • Method and device for intelligent diagnosis and location of leakage fault of fluid delivery pipeline
  • Method and device for intelligent diagnosis and location of leakage fault of fluid delivery pipeline
  • Method and device for intelligent diagnosis and location of leakage fault of fluid delivery pipeline

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Embodiment Construction

[0070] refer to figure 1 The device of the present invention is composed of pressure (P), flow (F) and temperature (T) detection instruments, upper computer, lower computer, local area network and GPS global positioning timing system installed at the first and last stations.

[0071] refer to figure 2 , the device converts the pressure, temperature, and flow of the fluid in the first station or the last station pipeline into standard electrical signals through corresponding pressure, flow, and temperature detection instruments (pressure, temperature is 4 ~ 20mA current signal, flow is pulse signal ). The lower computer is composed of filter board, A / D converter, counting board (I / O board), embedded microcomputer and GPS receiving board. After the 4-20mA standard current signal is filtered by the filter board, it is sent to the A / D converter to become a digital signal. The flow pulse signal is sent to the counting board (I / O board) after being isolated and shaped by the fil...

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Abstract

An intelligent device and method for diagnosing and positioning the leakage of fluid delivery pipeline are disclosed. Said method includes detecting leakage by delivery difference-pressure wave coupling method, and positioning by transient pressure wave locating method to calculate the leakage position. Its device is composed of the start and end stations to which the pressure flow and temp meters, upper-layer set and lower-layer set are mounted, communication network for real-time data exchange, and GPS correction system.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis, and in particular relates to a method and a device for detecting and locating the leakage of a fluid delivery pipeline. Background technique [0002] Long-distance fluid pipelines may cause fire, explosion, poisoning, etc. due to fluid leakage, resulting in huge economic losses and environmental pollution. Therefore, the online non-destructive testing technology of pipelines is a high-tech developed by developed countries in the pipeline industry. The existing pipeline leakage monitoring and leakage point location methods can be roughly divided into two categories: one is the leakage detection method of the flow state in the pipeline due to changes in physical parameters such as flow and pressure caused by leakage; the other is the direct detection of fluid (oil, oil, etc.) Water, gas) leakage outside the pipe leak detection or detection of pipe wall condition method. With the rapid deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02G01M3/26F17D5/02G01M3/00
Inventor 张化光于锡纯冯健黎明
Owner NORTHEASTERN UNIV LIAONING
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