Porcelain insulator defect detection device, system and method based on self-comparing trend analysis and vibrational acoustics

A technology for acoustic wave detection devices and porcelain insulators, which is applied to measuring devices, analyzing materials, and using sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., and can solve problems such as inability to detect porcelain insulators

Inactive Publication Date: 2017-03-15
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the limitations of the existing porcelain insulator detection methods, and cannot detect all the defective porcelain insulators, and propose a porcelain insulator defect detection device based on self-comparison trend analysis and vibroacoustics , system and method

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  • Porcelain insulator defect detection device, system and method based on self-comparing trend analysis and vibrational acoustics

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specific Embodiment approach 1

[0021] The porcelain insulator defect detection device based on self-comparative trend analysis and vibroacoustics in this embodiment, the porcelain insulator defect detection device includes: a porcelain insulator acoustic wave detection device, a data transmission device and a computer, and the porcelain insulator sound wave detection device is connected through a data transmission device computer; of which,

[0022] Porcelain insulator acoustic wave detection device is used to regularly generate vibration load and apply the vibration load to the lower flange of the porcelain insulator, thereby exciting the porcelain post insulator to vibrate; collect the vibration frequency of the porcelain insulator and digitize the vibration frequency to generate a digital audio signal.

specific Embodiment approach 2

[0024] In the porcelain insulator defect detection system based on self-comparative trend analysis and vibroacoustics in this embodiment, the background analysis system of the porcelain insulator defect detection system includes:

[0025] A database for storing relevant information of porcelain insulators, wherein the relevant information of porcelain insulators includes basic data such as number, manufacturer, model, installation location, and installation time; the digital audio signal and detection time of the detected porcelain insulators; including The detection data of the initial test data of the porcelain insulators that have just been installed, and the initial test data is used as the benchmark data for comparison, and the data of the later periodical detection is used as the comparison data and trend comparison data;

[0026] An expert system for trend analysis of porcelain insulator-related information stored in the database, observation and prediction of the curren...

specific Embodiment approach 3

[0028] The defect detection method of porcelain insulators based on self-comparative trend analysis and vibroacoustics in this embodiment, the defect detection method of porcelain insulators is realized through the following steps:

[0029] Step 1. Install the acoustic wave detection device for porcelain insulators based on vibroacoustic theory, and ensure the stable installation of the acoustic wave detection device for porcelain insulators and the stability of the input conditions;

[0030] Step 2, select a wired or wireless data transmission device to connect the porcelain insulator acoustic wave detection device and background analysis system to transmit digital audio signals;

[0031] Step 3, install the background analysis system on the computer or server in the master control room;

[0032] Step 4, the platform analysis system analyzes the digital audio signal transmitted by the data transmission device:

[0033] The background analysis system uses the self-comparison ...

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Abstract

The invention provides a porcelain insulator defect detection device, system and method based on self-comparing trend analysis and vibrational acoustics and belongs to the field of part detection. An existing porcelain insulator detection method has limitation, and all porcelain insulators with defects cannot be detected. According to the porcelain insulator defect detection method based on self-comparing trend analysis and vibrational acoustics, a porcelain insulator sound wave detection device based on the vibrational acoustics theory is installed, and stable installation of the porcelain insulator sound wave detection device and the stability of input conditions are guaranteed. A data transmission device in a wired or wireless transmission mode is selected and used, and the data transmission device is connected with the porcelain insulator sound wave detection device and a background analysis system for transmission of digital audio signals. The background analysis system is installed on a computer or server of a master control room. The background analysis system analyzes the digital audio signals transmitted by the data transmission device. The porcelain insulator defect detection device, system and method have the advantage of high accuracy of porcelain insulator defect detection.

Description

technical field [0001] The invention relates to a porcelain insulator defect detection device, system and method based on self-comparison trend analysis and vibroacoustics. Background technique [0002] Porcelain insulators are important components of electrical equipment in power grids and power plants. Due to improper operation during its manufacture, installation and maintenance or environmental impact during operation, porcelain insulators will fail, fracture and other defects, endangering the safe operation of the power grid. Therefore, it is very important to strengthen the inspection and quality evaluation of porcelain insulators in service in the power grid to ensure the safe operation of the power grid. [0003] At present, infrared, ultraviolet, laser and other methods are used to detect porcelain insulators, but they all have serious limitations and cannot detect all defects. Ultrasonic flaw detection is used to test the mechanical state of porcelain pillar porce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/44
CPCG01N29/045G01N29/4409G01N2291/0232G01N2291/0289G01N2291/2697
Inventor 陈洪涛吴刚单小东孟祥辰陈艳孙振胜张海明李伟李军韩显华李冬梅黄树春赵强李一凡韩兆婷
Owner STATE GRID CORP OF CHINA
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