A wind tunnel test method based on temperature-sensing optical fiber positioning detection

Abstract

The invention discloses a wind tunnel test method based on temperature-sensing optical fiber positioning and detection, which is mainly used in the field of pipeline leakage detection. By establishing a test device in the process of powder medium pipeline transportation, the environment of the powder medium transportation pipeline and the transportation pipeline can be simulated. Various possible damage states, use the temperature-sensing optical fiber to measure the various characteristics of the damaged pipeline from the outer wall of the conveying pipeline, and summarize the data characteristics of the damaged pipeline, and use this as the basis for the judgment of early warning in actual monitoring. It is of great significance for industrial fire safety to be able to effectively monitor the damage of the pipeline lining in real time and realize the early warning of accident risks.

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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