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A High Insulation and High Stability Modified Transformer Oil

A technology of transformer oil and high stability, applied in the field of transformer oil, can solve the problems of poor stability of transformer oil and inability of transformer oil to be uniform, and achieve the effects of increasing compatibility, fewer types of raw materials, and good photocatalytic activity performance.

Active Publication Date: 2022-03-01
国网河南省电力公司新野县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are many types of raw materials in this patent, the obtained transformer oil cannot be uniform, and the stability of the transformer oil is poor

Method used

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  • A High Insulation and High Stability Modified Transformer Oil

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Effect test

Embodiment 1

[0019] A high insulation and high stability modified transformer oil, comprising base oil and modified nano-titanium oxide of 0.1% by weight of the base oil, the preparation method of the modified nano-titanium dioxide comprises the following steps:

[0020] (1) Put titanium dioxide nanoparticles into a ball mill, add dodecyltrimethoxysilane, the mass ratio of dodecyltrimethoxysilane to titanium dioxide nanoparticles is 0.1:1, heat to 50°C, mix and ball mill for 1h ;

[0021] (2) Add oleic acid to the mixture obtained in step (1), the ratio of oleic acid to titanium dioxide nanoparticles is 40mL: 1g, then continue to heat up to 85°C, first stir mechanically, the speed of mechanical stirring is 1500r / min, time for 50 minutes, then ultrasonically oscillate, the power of ultrasonic oscillation is 800W, and the time is 25min, and finally washed with ethanol, filtered and dried to obtain modified nano-titanium dioxide.

[0022] The titanium dioxide nanoparticles are gold-red phase...

Embodiment 2

[0028] A high-insulation and high-stability modified transformer oil, comprising base oil and modified nano-titanium oxide of 0.2% by weight of the base oil, the preparation method of the modified nano-titanium dioxide comprises the following steps:

[0029] (1) Put titanium dioxide nanoparticles into a ball mill, add dodecyltrimethoxysilane, the mass ratio of dodecyltrimethoxysilane to titanium dioxide nanoparticles is 0.05:1, heat to 40°C, mix and ball mill for 3h ;

[0030] (2) Add oleic acid to the mixture obtained in step (1), the ratio of oleic acid to titanium dioxide nanoparticles is 50mL: 1g, then continue to heat up to 80°C, first stir mechanically, the speed of mechanical stirring is 1700r / min, time for 40 minutes, then ultrasonically oscillate, the power of ultrasonic oscillation is 1000W, and the time is 20min, and finally washed with ethanol, filtered and dried to obtain modified nano-titanium dioxide.

[0031] The titanium dioxide nanoparticles are gold-red pha...

Embodiment 3

[0037] A modified transformer oil with high insulation and high stability, comprising base oil and modified nano-titanium oxide of 0.5% by weight of the base oil, the preparation method of the modified nano-titanium dioxide comprises the following steps:

[0038] (1) Put titanium dioxide nanoparticles into a ball mill, add dodecyltrimethoxysilane, the mass ratio of dodecyltrimethoxysilane to titanium dioxide nanoparticles is 0.12:1, heat to 45°C, mix and ball mill for 2 hours ;

[0039] (2) Add oleic acid to the mixture obtained in step (1), the ratio of oleic acid to titanium dioxide nanoparticles is 50mL: 1g, then continue to heat up to 80°C, first mechanically stir, the mechanical stirring speed is 1600r / min, time for 40 minutes, then ultrasonically oscillate, the power of ultrasonic oscillation is 1000W, and the time is 20min, and finally washed with ethanol, filtered and dried to obtain modified nano-titanium dioxide.

[0040] The titanium dioxide nanoparticles are gold-...

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Abstract

The invention discloses a high-insulation and high-stability modified transformer oil. The modified transformer oil includes base oil and modified nano-titanium oxide with a weight of 0.1-1% of the base oil. Trimethoxysilane and oleic acid are treated to obtain modified nano-titanium dioxide, which can reduce the agglomeration of titanium dioxide nanoparticles and increase the compatibility with base oil. Oil insulation properties and stability.

Description

technical field [0001] The invention relates to the technical field of transformer oil, in particular to a modified transformer oil with high insulation and high stability. Background technique [0002] Transformer oil is widely used in today's power industry transformers as a good insulation and heat dissipation medium. In recent years, with the continuous development of ultra-high voltage and ultra-high voltage transmission networks, the design requirements of transformers are developing in the direction of large capacity, miniaturization and high insulation, which puts forward higher requirements for the strength of the transformer's internal insulation. Therefore, the insulation performance of transformer oil is very important. As a new type of material, nanofluids are widely used in industry, chemistry, energy and other fields. Nanoparticles can not only improve the heat transfer of materials, but also effectively improve their electrical properties and Anti-aging prop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M125/10C09C1/36C09C3/08
CPCC10M125/10C09C1/3669C09C3/08C10M2201/14
Inventor 海波赵应禄张燕高博卢鑫吴永白超飞丁雨梁振伟江映宇
Owner 国网河南省电力公司新野县供电公司
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