Pipeline blockage detection system based on low-frequency sound wave

A blockage detection, low-frequency sound wave technology, applied in the field of pipeline detection, to avoid blockage accidents, improve recognition accuracy, and increase the effect of propagation distance

Inactive Publication Date: 2019-01-01
DALIAN UNIV OF TECH
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the detection of pipeline blockage is more a

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pipeline blockage detection system based on low-frequency sound wave
  • Pipeline blockage detection system based on low-frequency sound wave
  • Pipeline blockage detection system based on low-frequency sound wave

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Such as figure 1 As shown, this embodiment provides a pipeline blockage detection system based on low-frequency sound waves, which can be used online. The technical solution solves the existing problems of the existing pipeline blockage detection system in terms of positioning accuracy, false alarm rate, and detection distance. The system includes an arbitrary waveform generator, a power amplifier, a low-frequency electro-acoustic transducer, a microphone, a preprocessing device, a data acquisition device, and a computer. The computer is used as a signal analysis device to realize the signal analysis function. The electro-acoustic transducer is installed at the head end of the pipe through the branch pipe, the low-frequency electroacoustic transducer and the branch pipe are connected by flanges, and the branch pipe is connected to the main pipe by welding. The angle between the branch pipe and the main pipe is 30°. Wherein, the arbitrary waveform generator is used to ge...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F17D5/06
CPCF17D5/06
Inventor 赵佳飞梁会永宋永臣杨磊刘卫国刘瑜杨明军张毅王大勇凌铮李洋辉
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap