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Active infrared thermal image detecting device and method for internal defects of composite insulator

A technology for composite insulators and internal defects, applied in measuring devices, radiation pyrometry, measuring electricity, etc., can solve problems such as low sensitivity, high requirements for detection conditions, and destructiveness, and achieve the effect of solving low sensitivity

Pending Publication Date: 2018-10-23
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

[0005] The present invention provides an active infrared thermal imaging detection device and method for internal defects of composite insulators, so as to solve the problems of low sensitivity, complicated and time-consuming, destructive and high requirements for detection conditions in existing detection methods for composite insulator defects

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  • Active infrared thermal image detecting device and method for internal defects of composite insulator
  • Active infrared thermal image detecting device and method for internal defects of composite insulator
  • Active infrared thermal image detecting device and method for internal defects of composite insulator

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Embodiment Construction

[0049] see figure 1 and figure 2 , figure 1 It is a schematic diagram of the structure of the active infrared thermal image detection device for the internal defects of the composite insulator, figure 2 It is a structural block diagram of the control and data processing and analysis device provided by the embodiment of the present invention.

[0050] An active infrared thermal image detection device for internal defects of a composite insulator provided by an embodiment of the present invention includes a modulating optical radiation thermal excitation loading device, an infrared thermal image acquisition device, and a control and data processing and analysis device 1;

[0051] The modulating optical radiation thermal excitation loading device and the infrared thermal image acquisition device are respectively connected to the control and data processing and analysis device 1;

[0052] The modulating optical radiation thermal excitation loading device is composed of an opt...

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Abstract

The invention discloses an active infrared thermal image detecting device and method for internal defects of a composite insulator. The active infrared thermal image detecting device is composed of amodulating optical radiation and thermal excitation loading device, an infrared thermal image collecting device, and a control and data processing and analyzing device. The modulating optical radiation and thermal excitation loading device is controlled to carry out controllable thermal excitation on a composite insulator, so that dynamic temperature field data are formed on the surface of the composite insulator; the infrared thermal image collecting device is controlled to collect dynamic temperature field data; and the control and data processing and analyzing device is used for identifyingand analyzing the dynamic temperature field data to obtain specific information of an internal defect of the composite insulator. Therefore, with the active infrared thermal image detecting device and method, problems of low sensitivity, high complexity, high time consumption, high destructiveness, and high detection condition requirement of the existing detection method of the composite insulator defect can be solved.

Description

technical field [0001] The invention relates to the field of electric equipment detection, in particular to an active infrared thermal image detection device and method for internal defects of a composite insulator. Background technique [0002] Since the application of composite insulators in my country in the 1970s, it has been more and more widely used due to its advantages of small size, light weight, high mechanical strength, strong anti-fouling flashover ability, excellent hydrophobicity and hydrophobic migration. . However, when the composite insulator has defects such as debonding of the sheath and the mandrel, pores or faults inside the sheath due to manufacturing processes, field operation aging, etc., the composite insulator will experience interface breakdown, flashover, silicone rubber aging, and mechanical strength reduction. , brittle mandrel and other problems, these hidden defects will pose a great threat to the safe operation of the power grid. The structu...

Claims

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Application Information

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IPC IPC(8): G01R31/12G01J5/00
CPCG01J5/00G01R31/1245G01J2005/0077
Inventor 郭晨鋆王黎明马仪刘立帅刘洪搏梅红伟申元赵晨龙
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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