Method and device for liquid level detection of porcelain sleeve, computer device, and storage medium

A technology of liquid level detection and porcelain bushing, which is applied in mechanical equipment, measuring devices, lubrication indicating devices, etc., and can solve problems such as inaccurate measurement, low detection reliability, and uneven wall thickness of porcelain bushings.

Active Publication Date: 2018-08-03
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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Problems solved by technology

[0003] The traditional detection method uses ultrasonic signals to detect the insulating oil level in the porcelain bushing from the outer wall of the porcelain bushing. Ho

Method used

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  • Method and device for liquid level detection of porcelain sleeve, computer device, and storage medium
  • Method and device for liquid level detection of porcelain sleeve, computer device, and storage medium
  • Method and device for liquid level detection of porcelain sleeve, computer device, and storage medium

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Embodiment Construction

[0059] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0060] In one embodiment, such as figure 1 As shown, a method for detecting the liquid level of a porcelain bushing at a cable terminal is provided, including the following steps:

[0061] Step S130, sending an ultrasonic excitation signal to the ultrasonic probe, and the ultrasonic excitation signal is used to control the ultrasonic probe to emit corresponding ultrasonic waves into the porcelain sleeve of the cable terminal.

[0062] Send the ultrasonic excitation signal to the ultrasonic probe, and the ultrasonic probe emits ultrasonic waves corresponding to the ultrasonic excitation signal into...

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Abstract

The invention relates to a method and a device for liquid level detection of a porcelain sleeve, a computer device, and a storage medium. The method comprises: sending an ultrasonic excitation signalto an ultrasonic probe, the ultrasonic excitation signal being used to control the ultrasonic probe to emit corresponding ultrasonic waves to a porcelain sleeve in a cable terminal; receiving reflected waves generated by propagation of the ultrasonic waves in the porcelain sleeve, and extracting to obtain reflected wave data according to the reflected waves; according to the reflected wave data, calculating propagation attenuation rate of the ultrasonic waves in the porcelain sleeve, according to the attenuation rate, compensating the reflected waves, extracting feature information of compensated reflected waves; according to the reflected wave feature information, determining a liquid level position in the porcelain sleeve, to obtain a determination result. Through calculating the attenuation rate of the ultrasonic waves in a transmission process, the reflected waves are compensated according to the attenuation rate. The liquid level position is determined by the compensated reflectedwave feature information, and a problem of reflected wave attenuation caused by uneven wall thickness of the porcelain sleeve is effectively prevented, and the liquid level position in the porcelainsleeve is accurately determined.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a method, a device, a computer device and a storage medium for detecting liquid level of a porcelain sleeve type terminal. Background technique [0002] High-voltage cable outdoor porcelain sleeve terminal is a terminal form commonly used in the power cable industry. The high-voltage cable outdoor porcelain sleeve terminal uses a porcelain sleeve as the outer insulation, and insulating oil is generally filled between the porcelain sleeve and the stress cone as insulating oil. , It plays the role of insulation, heat dissipation and cooling, arc extinguishing, buffering and shock absorption. However, during the use of the porcelain sleeve type terminal, there may be problems of uneven temperature distribution and abnormal local heating. This phenomenon is caused by the loss or leakage of the filling medium insulating oil in the terminal. Energy accumulation due to loss or lea...

Claims

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Application Information

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IPC IPC(8): G01F23/296
CPCG01F23/2965
Inventor 祁宏昌
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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