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Extra-high voltage transformer oil and production process thereof

A transformer oil, ultra-high voltage technology, applied in the petroleum industry, additives, lubricating compositions, etc., can solve the problems of high toxicity, pollution of human body and environment, etc.

Active Publication Date: 2013-05-22
ANHUI KAIAO NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is simple in operation and low in cost, but the disadvantage is that the highly toxic 2,6-di-tert-butyl-p-cresol is used as an antioxidant, which pollutes the human body and the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] An ultra-high voltage transformer oil is characterized in that it comprises the following components in mass concentration: 85wt% of naphthenic base oil, 12wt% of dodecylbenzene, 200ppm of benzotriazole, and 3wt% of light stabilizer HPT.

[0052] The preparation method of above-mentioned ultra-high voltage transformer oil is as follows:

[0053] (1) Mix the components according to the mass concentration ratio, and stir evenly at 92°C for 20 minutes to obtain the mixture;

[0054] (2) Raise the temperature to 140°C, add 2.2wt% clay of the mixture obtained in step (1), stir and refine for 20 minutes;

[0055] (3) Remove the precipitate by filtration;

[0056] (4) 0.8×10 -3 Drying and dehydration under Pa vacuum conditions to obtain ultra-high voltage transformer oil.

[0057] The ultra-high voltage transformer oil kinematic viscosity that present embodiment obtains is 9.2mm 2 / s (40°C), the flash point (closed) is 144°C, the acid value is 0.013mgKOH / g, the gas evoluti...

Embodiment 2

[0059] An ultra-high voltage transformer oil is characterized in that it comprises the following components in mass concentration: 75wt% of naphthenic base oil, 22wt% of dodecylbenzene, 10ppm of thiadiazole, and 3wt% of light stabilizer GW-540.

[0060] The preparation method of above-mentioned ultra-high voltage transformer oil is as follows:

[0061] (1) Mix the components according to the mass concentration ratio, and stir evenly at 88°C for 30 minutes to obtain the mixture;

[0062] (2) Raise the temperature to 130°C, add 1.8wt% clay of the mixture obtained in step (1), stir and refine for 30 minutes;

[0063] (3) Remove the precipitate by filtration;

[0064] (4) 0.6×10 -3 Drying and dehydration under Pa vacuum conditions to obtain ultra-high voltage transformer oil.

[0065] The ultra-high voltage transformer oil kinematic viscosity that present embodiment obtains is 9.3mm 2 / s (40°C), the flash point (closed) is 143°C, the acid value is 0.014mgKOH / g, the gas evoluti...

Embodiment 3

[0067] An ultra-high voltage transformer oil, comprising the following components in mass concentration: naphthenic base oil 83.5wt%, dodecylbenzene 14wt%, benzotriazole sodium salt 150ppm, ultraviolet absorber UV-P 2.5wt% .

[0068] The preparation method of above-mentioned ultra-high voltage transformer oil is as follows:

[0069] (1) Mix the components according to the mass concentration ratio, and stir evenly at 95°C for 15 minutes to obtain the mixture;

[0070] (2) Raise the temperature to 145°C, add 2.5wt% white clay of the mixture obtained in step (1), stir, refine and adsorb for 15 minutes;

[0071] (3) Remove the precipitate by filtration;

[0072] (4) 1.0×10 -3 Drying and dehydration under Pa vacuum conditions to obtain ultra-high voltage transformer oil.

[0073] The ultra-high voltage transformer oil kinematic viscosity that present embodiment obtains is 9.25mm 2 / s (40°C), the flash point (closed) is 145°C, the acid value is 0.015mgKOH / g, the gas evolution i...

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Abstract

The invention relates to extra-high voltage transformer oil and a production process thereof. The extra-high voltage transformer oil comprises the following components in percentage by weight: 75wt%-85wt% of naphthenic-base base oil, 12wt%-22wt% of dodecyl benzene, 10ppm-200ppm of a metal de-activating agent and 0.1wt%-3wt% of a light stabilizer. Compared with the prior art, the extra-high voltage transformer oil is low in cost, simple in formula and production process, convenient to use, excellent in comprehensive performances and in particular suitable for being used as extra-high voltage transformer oil.

Description

technical field [0001] The invention relates to transformer oil, in particular to an ultra-high voltage transformer oil and a production process thereof. Background technique [0002] Transformer oil is a fractionation product of natural petroleum. Its main functions are as follows: ① cooling and cooling the transformer during operation; Arc suppression function to prevent the generation of corona and arc discharge, ④ Used as a liquid seal in the hydraulic safety valve. The main components of transformer oil are alkanes, naphthenic saturated hydrocarbons, aromatic unsaturated hydrocarbons and other compounds, and the performance is also related to the type and content of the hydrocarbons contained. With the improvement of environmental protection awareness of the whole society, the power industry has higher and higher requirements for reducing line power loss, and power transmission and transformation technology is gradually developing towards large-capacity, ultra-high vol...

Claims

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Application Information

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IPC IPC(8): C10M141/08C10M141/06
Inventor 王平
Owner ANHUI KAIAO NEW ENERGY CO LTD
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