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Method and device for detecting and positioning gas pipeline leakage on line

A technology for gas pipelines and positioning methods, which is applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc.

Active Publication Date: 2014-01-08
CHANGZHOU UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are not many studies on acoustic emission detection of urban gas pipeline leakage, especially the technical standards in this field are still blank, which restricts the wide application of acoustic emission detection technology in pipeline leakage detection

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  • Method and device for detecting and positioning gas pipeline leakage on line
  • Method and device for detecting and positioning gas pipeline leakage on line
  • Method and device for detecting and positioning gas pipeline leakage on line

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Embodiment Construction

[0063] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0064] Based on the acoustic emission detection technology, on the premise of the gas pipeline acoustic emission detection test and field application, the experience and achievements of the laboratory and the on-line leakage detection of the gas pipeline are summarized, and the method of the present invention is proposed.

[0065] The invention provides an on-line detection and positioning method for gas pipeline leakage. The detection equipment is directly installed on the gas pipeline production line, and the acoustic emission leakage detection technology is used to detect and locate the leakage in real time through real-time detection and real-time feedback information.

[0066] Leakage detection of gas pipelines can be carried out under the conditions of production and operation, with limited excavation or no excavation of pipelines. Limited excavation me...

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Abstract

The invention discloses a method and device for detecting and positioning gas pipeline leakage on line. The method mainly comprises the detecting preparation, the detecting procedures, the detecting result analysis, verification and the like based on the acoustic emission inspection technology and by summarizing laboratory tests and experience and achievements of gas pipeline leakage field tests. New specific gas pipeline leakage detecting and positioning technical details are proposed, the defects in the aspect of the application of the gas pipeline leakage detecting technology in China are overcome and supplemented, and the method and device play a positive role in promoting the detection of an urban gas pipeline net and monitoring methods, finding urban gas pipeline net leakage hidden dangers timely, preventing gas leakage from emerging, effectively preventing major urban fire and explosion risks and accelerating the transformation and wide application of the related technological achievements in engineering practice.

Description

technical field [0001] The invention relates to an on-line detection and location method for gas pipeline leakage and a device thereof, belonging to the field of oil and gas storage and transportation risk control. Background technique [0002] Since the founding of the People's Republic of China, especially after the reform and opening up, my country's urban gas industry has developed rapidly, the construction of gas pipeline networks has been accelerated, and the gas supply capacity has been continuously enhanced, which has promoted the development of urban economy and society. By 2006, the length of urban gas pipelines across the country had reached 189,500 kilometers, including 50,500 kilometers of artificial gas, 17,500 kilometers of liquefied petroleum gas, and 121,500 kilometers of natural gas. [0003] Due to the limitations of the pipeline technology and pipe materials used at that time, some cities adopted gray cast iron pipelines and backward pipe connection metho...

Claims

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Application Information

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IPC IPC(8): F17D5/06
Inventor 郝永梅邢志祥毛小虎严欣明李奎
Owner CHANGZHOU UNIV
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