Wind tunnel testing method based on temperature sensing fiber positioning detection

Abstract

The present invention discloses a wind tunnel testing method based on temperature sensing fiber positioning detection mainly applied to the field of pipeline leak detection. Through establishing a testing device in a powdered media pipeline transportation process, the environment of a powdered media transportation pipeline and various possible damage states of the transportation pipeline, various characteristics after pipeline damage are measured from the outer wall of the transportation pipeline by using a temperature sensing fiber, the data characteristics after pipeline damage are summed and are used as the judgment basis of early warning in actual monitoring, thus the damage of a pipeline lining can be effectively monitored in real time, the early warning of accident risks is realized, and the method has a huge significance for industrial fire safety.

Description

technical field [0001] The invention belongs to the technical field of pipeline leakage detection, in particular to a wind tunnel test method based on temperature-sensitive optical fiber positioning detection. Background technique [0002] At present, various industries generally use pipelines to transport powdery media, such as: coal powder pipelines, aluminum powder pipelines, etc. However, due to the high-speed movement of the medium in the transmission pipeline, the pipeline damage caused by the friction between the medium and the pipe wall is inevitable. Once the pipeline is damaged, the medium will leak and the air will form dust. If the explosion concentration limit is reached, it is very likely to explode and cause serious losses. and social impact. [0003] In response to the above technical problems, ultrasonic thickness measurement is now commonly used to detect and regularly maintain vulnerable parts such as pipe elbows and variable diameters. Accidents occur d...

AI Technical Summary

Problems solved by technology

However, due to the high-speed movement of the medium in the transmission pipeline, the pipeline damage caused by the friction between the medium and the pipe wall is inevitable. Once the pipeline is damaged, the medium will leak and the air will form dust. If the explosion concentration limit is reached, it is very likely to explode and cause serious losses. and social impact

[0003] In response to the above technical problems, ultrasonic thickness measurement is now commonly used to detect and regularly maintain vulnerable parts such as pipe elbows and variable diameters. Accidents due to missing inspections

Therefore, it is urgent to detect the leakage of the pipeline

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