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Technological process for ultrasonic flaw detection of post insulator and porcelain bushing

A technology of pillar insulator and process method, which is applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, instruments, and analytical materials, etc., can solve problems such as hidden dangers, and achieve the effect of preventing accidents and effective preventive measures.

Inactive Publication Date: 2008-07-30
徐州电力试验中心有限公司
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Problems solved by technology

[0003] In order to overcome the hidden dangers of post insulators and porcelain bushings, the present invention provides a process method for ultrasonic flaw detection of post insulators and porcelain bushings. This process changes the backward method of manual inspection during power outages, and can conduct live inspection of post insulators without power failure. And porcelain sleeve flaw detection, can timely and effectively find hidden cracks inside the porcelain parts, and can prevent accidents in advance. It is a new breakthrough in condition-based maintenance. Accidents, with effective preventive measures

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  • Technological process for ultrasonic flaw detection of post insulator and porcelain bushing
  • Technological process for ultrasonic flaw detection of post insulator and porcelain bushing
  • Technological process for ultrasonic flaw detection of post insulator and porcelain bushing

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[0026] In FIG. 1 , the probe includes seven parts: housing 1 , receptacle 3 , plexiglass contact block 8 , filling material 6 , piezoelectric crystal 7 , wire 5 and coil wire 2 . It has a rectangular shell 1, one end of the shell is closed, and connected to a socket 3, the socket 3 is connected with a plug joint 4, and the other end of the shell 1 is installed with a plexiglass contact block 8; inside the shell, Adhering to the plexiglass contact block 8, the piezoelectric crystal 7 and the filling material 6 are sequentially installed with a coil wire 2 connected between the socket 3 and the piezoelectric crystal 7, and a wire is electrically connected between the plug connector 4 and the piezoelectric crystal 7 5. When in use, the socket 3 is connected to the instrument. After it is turned on, the plexiglass contact block 8 coincides with the measured object and slides, the ultrasonic wave is emitted, and is reflected back by the measured object. The single-peak waveform on ...

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Abstract

The present invention relates to post insulator used by power plant and electric substation and porcelain bushing ultrasonic detection technology. In the design, there is special probe for post insulator and porcelain bushing ultrasonic detection connected to display; use probe to measure the coincidence with object waited for detection, singlet bottom wave shows there is no damage and the object can be used continually; or else, doublet or multilet shows the object has been damaged and should be stopped and replaced. The technology can change the laggard method only fit handwork detect after power cut, can process detection to post insulator and porcelain bushing charged; can find out crack in time efficiently, prevent accidents.

Description

technical field [0001] The invention relates to a set of technology and method for ultrasonic flaw detection of post insulators and porcelain sleeves used in power plants and substations. Background technique [0002] At present, pillar insulators and porcelain sleeves are important components of power plants and substations. They play a role in supporting wires and insulating them. There are hidden defects in insulators and porcelain bushings, which are a great threat to the safe operation of the power grid and can easily cause damage accidents. At present, the traditional method is to predict the defects and hidden dangers of pillar insulators in advance. Personnel shake their hands to check. This method is laborious, time-consuming, and the accuracy of the inspection is also poor. It is difficult to find tiny defects. There is no good solution at present. Contents of the invention [0003] In order to overcome the hidden dangers of post insulators and porcelain bushing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04
CPCG01N2291/044
Inventor 王维东刘勇王鲜凤
Owner 徐州电力试验中心有限公司
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