Pipeline damage phonon energy wave diagnosis system and positioning method

A technology of phonon energy and positioning method, which is applied to the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and measuring devices. It can solve problems such as poor recognition effects and achieve early recognition and accident prevention

Pending Publication Date: 2021-07-13
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, it is often sensitive to larger damage, and the recognition effect of the initial initiation stage of damage is not very good

Method used

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  • Pipeline damage phonon energy wave diagnosis system and positioning method
  • Pipeline damage phonon energy wave diagnosis system and positioning method
  • Pipeline damage phonon energy wave diagnosis system and positioning method

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Embodiment Construction

[0044] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0045] The following implementation examples will be used to disclose the application possibility of the pipeline damage phonon energy wave diagnosis technology and positioning method. Such as figure 1 As shown, the pipeline damage phonon energy wave diagnosis and positioning detection system includes: signal receiving probe 1, excitation signal transmitting probe 2, digital signal generator 3, 10m pipeline to be tested 4, data processing computer 5, voltage conversion integrated board 6, Data acquisition computer 7, data acquisition card 8, digital oscilloscope 9, signal receiving probe 10, excitation signal transmitting probe 11.

[0046] In order to detect a 10m buried steel pipeline with defective holes, the following steps will be followed:

[0047] Step 1: Attach the signal transmitting patch antenna 14 of the phonon s...

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Abstract

The invention discloses a pipeline damage phonon energy wave diagnosis system and a positioning method. The pipeline damage phonon energy wave diagnosis positioning detection system involved in the method comprises two groups of phonon signal receiving and transmitting modules, a digital oscilloscope, a digital signal generator, a data acquisition computer, a data acquisition card, a voltage conversion integrated board, a data analysis computer and the like. The phonon signal receiving and transmitting module can be freely fitted according to the length of a pipeline so as to adapt to the detection requirements of pipelines with different lengths, the collected signal data is processed and analyzed in the data processing computer, and the data collected at different frequencies are grouped in a frequency domain for numerical point taking; the mathematical characteristic relation between the pipeline defect position and the phonon signal transmitting module distance is calculated through a mathematical statistical method and serves as an experiment comparison sample to conduct other to-be-detected pipeline experiments under the same working condition, and the calculation result is compared with sample data, so that pipeline defect positioning is achieved.

Description

technical field [0001] The invention belongs to the field of non-destructive testing of steel pipelines for special equipment. The patent relates to multidisciplinary fields such as solid physics, electromagnetism, information transmission and collection, signal processing, mathematical statistics and sample science. The involved pipeline damage phonon energy wave The diagnostic positioning detection system can be used for defect detection of steel pipelines, and the detection distance can be adjusted freely according to the diameter and length of the pipeline, especially for crossing pipelines, which belongs to the new field of non-destructive testing of special equipment. Background technique [0002] There are a variety of detection technologies for oil and gas pipeline detection, among which non-destructive detection technology is widely used in pipeline defect detection because of its relatively mature system. Non-destructive testing is a non-destructive testing technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/24G01N29/44
CPCG01N29/04G01N29/2418G01N29/44G01N2291/0234
Inventor 王新华鹿垒孙涛杨林姬云磊
Owner BEIJING UNIV OF TECH
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