Pipeline blockage detection system based on low-frequency sound wave

Abstract

The invention discloses a pipeline blockage detection system based on a low-frequency sound wave, belongs to the technical field of pipeline detection, and aims at achieving the purpose of more accurate condition expression of pipeline blockage detection for blockage. The pipeline blockage detection system based on the low-frequency sound wave comprises a waveform generator, a low-frequency electroacoustic transducer, a microphone and a signal resolution device, wherein the waveform generator is used for generating an excitation signal, the excitation signal is transmitted to the low-frequency electroacoustic transducer, the excitation signal is converted to a low-frequency pulse sound wave signal by the low-frequency electroacoustic transducer, and transmitted into a pipeline to form anincident wave and a reflected wave in the pipeline; and the microphone receives the sound wave signal in the pipeline and transmits the sound wave signal to the signal resolution device, the signal resolution device resolves the sound wave signal to reflect the position of a blocking object. The pipeline blockage detection system based on the low-frequency sound wave has the following effect: theoccurrence position and the degree of blockage can be timely detected in an initial phase that the pipeline is incompletely blocked.

Description

technical field [0001] The invention belongs to the technical field of pipeline detection and relates to a system for on-line detection of pipeline blockage. Background technique [0002] At present, my country's economy and society are developing steadily and rapidly, people's living standards are improving day by day, and energy demand is increasing. Pipeline transportation is a major energy transportation mode, which has the advantages of large transportation volume, low cost, high safety, small footprint, and sustainable transportation. It is widely used in long-distance transportation of oil and natural gas. Since the extracted oil and natural gas contain water, if they cannot be completely extracted before entering the pipeline, in the high-pressure and low-temperature pipeline environment, natural gas and water will form natural gas hydrate solids. In addition to natural gas hydrate, there are also various impurities such as paraffin, asphalt, sediment and corrosion ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the detection of pipeline blockage is more accurate for blockage, the present invention proposes the following technical solutions:

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