Mixed modified nano particle transformer oil and preparation method thereof

A technology of transformer oil and nanoparticles, which is applied in the chemical and electrical fields, can solve the problems of less electrical performance, and achieve the effects of simple equipment, good insulation, thermal conductivity and stability improvement.

Active Publication Date: 2016-02-03
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +1
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on nanofluids mainly focuses on the thermal conductivity enhancement mechan

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1:

[0021] The invention provides a hybrid modified nano-particle transformer oil and a preparation method thereof, including the following steps:

[0022] (1) Preparation of modified nano boron nitride transformer oil: 0.1g boron nitride nanoparticles were dispersed in 250ml isopropanol, and the BN nanoparticle isopropanol mixture was sonicated for 40 minutes (ice In a water bath), the ultrasonic power is 300w; then the mixture is centrifuged in a gradient, the speed is adjusted to 2000r / min, the centrifugation time is 40min, and the supernatant is collected; the supernatant is centrifuged at a high speed, the speed is adjusted to 8000r / min, and the centrifugation time is 6min , Discard the supernatant to obtain nano-BN with a smaller particle size, then vacuum dry, prepare modified transformer oil according to the BN / transformer oil mass ratio of 1 / 10000, ultrasonically disperse, and then use powerful electromechanical stirring for further dispersion treatment. T...

Example Embodiment

[0026] Example 2:

[0027] The invention provides a hybrid modified nano-particle transformer oil and a preparation method thereof, including the following steps:

[0028] (1) Preparation of modified nano boron nitride transformer oil: 0.1g boron nitride nanoparticles were dispersed in 250ml isopropanol, and the BN nanoparticle isopropanol mixture was sonicated for 15 minutes (ice In a water bath), the ultrasonic power is 450w; then the mixture is centrifuged in a gradient, the speed is adjusted to 3000r / min, the centrifugation time is 25min, and the supernatant is collected; the supernatant is centrifuged at high speed, the speed is adjusted to 10000r / min, and the centrifugation time is 4min , Discard the supernatant to obtain nano-BN with a smaller particle size, then vacuum dry, prepare modified transformer oil according to the BN / transformer oil mass ratio of 1 / 5000, ultrasonically disperse, and then use strong electromechanical stirring for further dispersion treatment. The s...

Example Embodiment

[0031] Example 3:

[0032] The invention provides a hybrid modified nano-particle transformer oil and a preparation method thereof, including the following steps:

[0033] (1) Preparation of modified nano boron nitride transformer oil: 0.1g boron nitride nanoparticles were dispersed in 250ml isopropanol, and the BN nanoparticle isopropanol mixture was sonicated for 30 minutes (ice In a water bath), the ultrasonic power is 400w; then the mixture is centrifuged in a gradient, the speed is adjusted to 2500r / min, the centrifugation time is 30min, and the supernatant is collected; the supernatant is centrifuged at high speed, the speed is adjusted to 9000r / min, and the centrifugation time is 5min , Discard the supernatant to obtain nano-BN with a smaller particle size, then vacuum dry, prepare modified transformer oil according to the mass ratio of BN / transformer oil of 1 / 50,000, ultrasonically disperse, and then use strong electromechanical stirring for further dispersion treatment. T...

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 provides mixed modified nano particle transformer oil and a preparation method thereof. The mixed modified nano particle transformer oil is formed by mixing modified nano boron nitride transformer oil and modified nano silicon dioxide transformer oil. The volume ratio of the modified nano boron nitride transformer oil to the modified nano silicon dioxide transformer oil ranges from 1:5 to 1:1. The preparation method includes the three steps of preparation of the modified nano boron nitride transformer oil, preparation of the modified nano silicon dioxide transformer oil and mixing. The mixed modified nano particle transformer oil has good insulating and heat conductive performance and can meet the requirements for large-capacity, ultrahigh-voltage-grade and small power transformers, equipment which is used is simple and easy to operate, and large-scale production can be achieved.

Description

technical field [0001] The invention relates to the technical fields of chemistry and electricity, and in particular relates to a mixed modified nano particle transformer oil and a preparation method thereof. Background technique [0002] Statistical analysis of a large number of transformer faults shows that: insulation fault is the main reason affecting the normal operation of transformers. Most of the current large-scale power transformers are oil-immersed power transformers. The transformer oil plays the dual role of heat exchange transfer and electrical insulation. Therefore, the heat dissipation performance and insulation performance of the transformer oil play a decisive role in the safety and reliability of the long-term operation of the transformer. effect. First of all, with the continuous improvement of the voltage level in the power transmission process, the development direction of high electric field, large capacity and miniaturization of power transformers re...

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
IPC IPC(8): C10M169/04C10M177/00C10N40/16
Inventor 周竹君金逸孔海洋关伟民
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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