Transverse blind test scanning device for leakage of fuel gas buried pipeline

Abstract

The invention relates to field of detection for leakage of fuel gas buried pipelines, in particular to a transverse blind test scanning device for leakage of a fuel gas buried pipeline. The two sidesof a support is provided with laser detectors, the laser detectors comprise the first laser detector and the second laser detector, and the support and a laser remote sensing instrument are connectedthrough a quick-disassembly clamp assembly or a table assembly. The transverse blind test scanning device can quickly and precisely detect remote gas leakage, and a worker can effectively defect an area difficult to reach even impossible to reach in a safe area.

Description

technical field [0001] The invention relates to the field of gas buried pipeline leakage detection, in particular to a horizontal blind detection and scanning device for gas buried pipeline leakage. Background technique [0002] There are a large number of natural gas pipelines buried underground in various cities, which are used to supply gas to various residential users and industrial and commercial users. Due to the characteristics of undetectable and explosive gas, gas safety accidents have emerged in an endless stream in recent years. Compared with exposed gas pipelines, underground buried The gas pipelines are more concealed and the pipeline network is more complicated, and sometimes the drawings are inaccurate or lost, causing the staff of the gas company to find the location of the gas pipelines. Sealed space will cause huge threats to life and property, loss and political influence. All gas companies need to introduce advanced management methods and high-tech testin...

AI Technical Summary

Problems solved by technology

[0015] 1. There are many detection blind spots: the front laser detection device can only detect the gas pipelines laid under the road surface of motor vehicles, but cannot detect buried gas pipelines such as sidewalks and courtyards (roads where cars cannot drive);

[0016] 2. Small detection range: the laser gas inspection vehicle must drive directly above the buried gas pipeline, and the front laser detection device can only detect a distance of 1.2m;

[0017] 3. Short detection distance: only one laser transmitter is installed in the front laser detection device, and the emitted detection laser is of fixed length, which can only passively sweep through the gas mass

[0018] 4. The laser emission angle cannot be adjusted: the front laser detection device is integrated, and the laser emission angle cannot be adjusted, especially when the road surface is uneven and the vehicle is unstable, which will cause the detection laser emitted by the front laser detection device to be unable to be level with the ground

[0023] 1. There are many detection blind spots: the overhead laser detection device cannot detect the buried gas pipeline close to the vehicle body;

[0024] 2. The detection range is small: the overhead laser detection device can only detect the gas leakage at a certain target point (the position where the laser is emitted);

[0025] 3. Unable to detect horizontally with the ground: when the overhead laser detection device is horizontally detected, because the height of a vehicle body (about 1.7m) from the ground, the gas leaked from the buried gas pipeline is quickly diluted by the air, or even not, resulting in no detection

[0026] 4. Short detection distance: the overhead laser detection device can only detect at a certain angle to the ground, resulting in a limited detection distance

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