A Natural Gas Riser Early Warning System Based on Optical Fiber Sensing

Abstract

The invention discloses a natural gas riser early warning system based on optical fiber sensing, which collects damage data through an optical fiber sensor in a signal collector, centrally stores the damage data through a data concentrator, processes the damage data through a data processor, and calls the damage identification module damage data, and judge whether it exceeds the threshold, if the threshold is exceeded, an alarm is triggered; if the threshold is not exceeded, the alarm control module is not activated, the display module receives the alarm signal output by the damage identification signal, and displays it through the image display unit and the acousto-optic display unit Image and video information and sound and light reminder information of alarm signal. The invention is composed of multiple modules interconnected, has a safe and reliable structure, has a wide application range, reduces the risk of natural gas riser leakage, guarantees people's safety, reduces losses, and effectively prevents people and the environment from suffering unexpected harm in a timely manner , and the scope of application of the present invention is very wide.

Description

technical field [0001] The invention relates to the technical field of pipeline optical fiber sensing, and more specifically relates to a natural gas riser early warning system based on optical fiber sensing. Background technique [0002] At present, natural gas is no stranger to our daily life. The laying of natural gas pipelines and the reservation of holes must be considered in the construction of modern urban buildings. Natural gas has entered our lives and brought great benefits to people's lives. Great convenience. However, as a combustible gas, natural gas still has the danger of explosion when it leaks, so it is very necessary to prevent and detect natural gas pipeline leakage. In the process of natural gas pipeline transportation, the parts that often leak are the connection parts, welding parts, fluid turning parts and packing sealing parts on the pipeline. [0003] Leakage of natural gas pipelines not only endangers the lives of urban residents, but also has an ...

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Problems solved by technology

[0004] Conventional detection methods include pressure gradient method, negative pressure wave leak detection method, mass or volume balance method, statistical leak detection method, acoustic leak detection method, gas method, etc. Although there are many detection methods at present, they rely on a certain detection method , can not achieve a very ideal effect, which requires more high-tech investment on the basis of conventional detection methods to develop sensitive and fast detection methods

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