Portable natural gas pipeline leak hunting device

Abstract

A portable natural gas pipeline leak hunting device disclosed by the present invention comprises a bottom plate, a box body, slide rails and a telescopic pull rod, universal wheels are arranged at four corners of the bottom of the bottom plate respectively, the slide rails are arranged on the upper surface of the bottom plate in a front-back symmetry manner, the box body is slidably mounted on the slide rails, and the telescopic pull rod is arranged at the top of the rear side of the box body. A second detection hole is formed in the center of the bottom plate, and a cleaning unit is arranged at the bottom of the second detection hole, the portable natural gas pipeline leakage detection device is provided with an assembled detection device, leakage detection can be conducted on some indoor or outdoor high natural gas pipelines, meanwhile, the portable natural gas pipeline leakage detection device is convenient to carry and move, and the detection efficiency is improved. According to the device, inspection can be conducted along the upper portion of a pipeline, drilling detection can be directly conducted on some places needing drilling leakage detection, the detection value is accurate, safety is high, detected gas can be purified, and detection personnel are prevented from inhaling poisonous and harmful gas.

Description

technical field [0001] The invention relates to the technical field of natural gas pipeline detection, in particular to a portable natural gas pipeline leak detection device. Background technique [0002] Natural gas is mainly composed of methane (85%) and a small amount of ethane (9%), propane (3%), nitrogen (2%) and butane (1%). One of the indispensable resources in my country, the distribution of natural gas in China is very different due to the difference in geographical environment, and the use of natural gas pipelines for gas transmission is an effective method to solve the gap between natural gas production areas and land use. Among the total pipeline lengths in the world, natural gas pipelines about half; [0003] At present, for the detection of natural gas pipelines, most of the inspectors use hand-held leak detection instruments to detect the leakage of natural gas pipeline interfaces in some lower positions indoors and outdoors, while the detection of natural gas ...

AI Technical Summary

Problems solved by technology

[0003] At present, for natural gas pipeline detection, most of the inspection personnel carry out leak detection work on some lower natural gas pipeline joints indoors and outdoors with hand-held leak detection instruments, while for some higher natural gas pipeline detection, it is necessary to use external ladders or Binding the detection instrument to a wooden stick for gas leakage detection is not only time-consuming and laborious, but also greatly increases the labor intensity of the staff and reduces the detection efficiency; when a leak occurs in an outdoor buried natural gas pipeline:

[0004] 1. In the condition of loose soil and soft ground or grassland, the leaked gas is easy to spread to the ground. We can inspect along the upper part of the pipeline, and according to the numerical changes detected by the natural gas leak detection instrument, we can detect the leakage point more accurately. location, and the current portable detection equipment requires manual hand-held detection probes to detect the ground. This operation method is not only inefficient, but also has poor detection accuracy;

[0005] 2. In most cases, gas pipelines are buried under hard pavement (such as cement and asphalt pavement). At this time, after gas leaks, it cannot easily escape from the ground, and generally accumulates along the gaps of backfill soil or underground pipeline ditches. At this time, the inspectors use the hand-held pump-suction natural gas detection instrument to penetrate the detection hose into the pipeline ditch for detection. This detection method makes it easy for the inspectors to inhale toxic and harmful gases, and then accidents occur;

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