Soft adsorption ultrasonic sensor for GIS partial discharge detection

An ultrasonic sensor and partial discharge detection technology, which is applied in the direction of using acoustic measurement for testing, testing dielectric strength, etc., can solve the problems of partial discharge ultrasonic detection, inaccurate detection data, easy to fall on the ground, etc.

Pending Publication Date: 2022-05-27
BAODING TIANWEI XINYU TECH DEV
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, it is necessary for inspectors to stick the ultrasonic sensor on the outside of the GIS tank body for partial discharge ultrasonic detection. Since the operator needs to hold the sensor for a long time, hand shaking or sliding will affect the partial discharge ultrasonic detection, resulting in inaccurate detection data. Accurate, at the same time, it is easy to drop to the ground during use, which will cause damage to the sensor

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
  • Soft adsorption ultrasonic sensor for GIS partial discharge detection
  • Soft adsorption ultrasonic sensor for GIS partial discharge detection
  • Soft adsorption ultrasonic sensor for GIS partial discharge detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The embodiment of the present invention discloses a soft adsorption ultrasonic sensor for GIS partial discharge detection, including: a metal inner shell 1, the metal inner shell 1 defines an upper cavity 101 and a lower cavity 102 that communicate with each other; the metal inner shell 1. A first installation hole is provided through the inner and outer surfaces, and the first installation hole is communicated with the upper cavity 101; the bottom of the lower cavity 102 is an isolation ceramic sheet 6; the piezoelectric vibrator 2, the piezoelectric vibrator 2 is located in the lower cavity 102. It is arranged on the isolation ceramic sheet 6, and the upper surface of the isolation ceramic sheet 6 is closely attached to the piezoelectric vibrator 2; the sound-absorbing filler 3, the sound-absorbing filler 3 can cover the outer surface of the piezoelectric vibrator 2; the output terminal 4, the output The terminal 4 is fixed on the first installation hole; the coaxial c...

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 soft adsorption ultrasonic sensor for GIS partial discharge detection, which comprises a metal inner shell, a piezoelectric vibrator, a sound absorption filler, an output terminal and a silicone rubber outer shell, and is characterized in that the silicone rubber outer shell covers the outer part of the metal inner shell, and the bottom of the silicone rubber outer shell gradually diverges outwards to form an umbrella-shaped negative pressure cavity. The umbrella-shaped negative-pressure cavity is arranged at the bottom of the ultrasonic sensor, the edge of the negative-pressure cavity is coated with an ultrasonic coupling agent during use, the ultrasonic sensor is pressed on the outer surface of the GIS, air in the negative-pressure cavity is pressed out, then the ultrasonic sensor can be adsorbed on the outer surface of the GIS through the negative-pressure effect of the negative-pressure cavity, the suction force is firm, and the ultrasonic sensor is not prone to falling off. Discharge ultrasonic detection can be carried out on the GIS without manual fixation.

Description

technical field [0001] The invention relates to the technical field of partial discharge detection, and more particularly to a soft adsorption ultrasonic sensor used for partial discharge detection of GIS. Background technique [0002] The interior of the GIS is filled with sulfur hexafluoride gas, and its dielectric strength and breakdown field strength are very high. Once a partial discharge occurs inside the GIS, ultrasonic waves will be generated, and the partial discharge ultrasonic signal will propagate to the surroundings in the form of spherical waves. An ultrasonic sensor is placed outside the tank, which can receive the ultrasonic signal generated by the discharge. [0003] At present, the inspectors need to stick the ultrasonic sensor on the outside of the GIS tank for partial discharge ultrasonic inspection. Since the operator needs to hold the sensor for a long time, hand shaking or sliding will affect the partial discharge ultrasonic inspection, resulting in in...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1209
Inventor 何平王京保金春雷徐丽媛宋通郝春霞刘伟
Owner BAODING TIANWEI XINYU TECH DEV
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