Insulating oil and preparation method thereof

An insulating oil and base oil technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problem of insufficient power insulating oil indicators, and achieve the effect of meeting market demand

Active Publication Date: 2014-04-02
JIYUAN POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the indicators of common electrical insulating oils on the market are insufficient

Method used

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  • Insulating oil and preparation method thereof
  • Insulating oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Add base oil 1000 to the reaction kettle, then add sodium hydroxide 150 and EDTA250, stir well to completely dissolve sodium hydroxide and EDTA, then add naphthenic acid 150, phosphate ester 50, sodium nitrite 20, triethanolamine 150, benzene Paratriazole 1 was stirred and heated to 70°C for homogenization, and finally cooled to normal temperature to obtain insulating oil.

Embodiment 2

[0013] Add base oil 1500 to the reaction kettle, then add sodium hydroxide 200 and EDTA250~300, stir well to completely dissolve sodium hydroxide and EDTA, then add naphthenic acid 200, phosphate ester 100, sodium nitrite 50, triethanolamine 200 , Benzotriazole 5 Stir and heat up to 70°C for homogenization, and finally cool to normal temperature to obtain insulating oil.

Embodiment 3

[0015] Add base oil 1200 to the reaction kettle, then add sodium hydroxide 180 and EDTA280, stir well to completely dissolve sodium hydroxide and EDTA, then add naphthenic acid 180, phosphate ester 80, sodium nitrite 30, triethanolamine 180, benzene Paratriazole 3 was stirred and heated up to 70°C for homogenization, and finally cooled to normal temperature to obtain insulating oil.

[0016] The indicators of the insulating oil of the tested embodiment 3 are shown in the table below:

[0017]

[0018]

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Abstract

The invention discloses an insulating oil prepared from the following raw materials in parts by weight: 1000-1500 parts of a base oil, 150-200 parts of sodium hydroxide, 250-300 parts of EDTA, 150-200 parts of naphthenic acid, 50-100 parts of phosphate ester, 20-50 parts of sodium nitrite, 150-200 parts of triethanolamine, and 1-5 parts of 1H-benzotriazole. Further, the base oil is a refined mineral oil. Further, the base oil is a refined lubricating oil. Compared with the prior art, the insulating oil provided by the invention allows indexes to be all improved, and better meets market demand.

Description

technical field [0001] The invention relates to an electric insulating oil and a preparation method thereof. Background technique [0002] Electric insulating oil is usually formulated by adding antioxidants to highly refined lubricating base oils. It is mainly used as a dielectric for electrical equipment. The main properties of electrical insulating oil are low temperature performance, oxidation stability and dielectric loss. Low-temperature performance refers to the fluidity necessary for oil to automatically convect in electrical equipment, export heat and cut off arc current instantly under low-temperature conditions. Generally, it is required that the electrical insulating oil has a low pour point and low viscosity at low temperature. In electrical equipment, oil is oxidized by heat and oxygen under the action of an electric field for a long time. Oils added with antioxidants and metal deactivators have better oxidation stability. The dielectric loss reflects the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N40/16
Inventor 金翼赵锋
Owner JIYUAN POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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