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Transformer oil and preparation method thereof

A technology of transformer oil and paraffin-based oil, which is applied in the chemical field and can solve problems such as easy generation of sludge, poor anti-oxidation performance, and short storage time of transformer oil

Active Publication Date: 2012-09-12
上海中孚油品集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a transformer oil. The transformer oil described in the prior art should solve the technical problems of short storage time of transformer oil, poor oxidation resistance and easy generation of oil sludge in the prior art.

Method used

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  • Transformer oil and preparation method thereof
  • Transformer oil and preparation method thereof
  • Transformer oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The invention provides a transformer oil, which is composed of paraffin base oil fractions, naphthenic oil fractions, alkyl high boilers, antioxidant additives, and anti-photosensitizers that are subjected to catalytic cracking of petroleum. The mass percentage of paraffin base oil fraction in the described transformer oil is 60%, the mass percentage of the described naphthenic oil in the described transformer oil is 28.5%, and the described alkyl high boiler is in the described The mass percentage of the transformer oil is 10%, and it is refined by adding clay with a weight percentage of 2% of the transformer oil at a temperature of 110°C. At the same time, it is stirred, refined and adsorbed for 40 minutes until the adsorption reaction is uniform, and the precipitate is filtered twice by a filter. The mass percentage of the anti-oxidant additive in the transformer oil is 1.0%, the mass percentage of the anti-light sensitive agent in the transformer oil is 0.5%, and the...

Embodiment 2

[0040] The invention provides a transformer oil, which is composed of paraffin base oil fractions, naphthenic oil fractions, alkyl high boilers, antioxidant additives, and anti-photosensitizers that are subjected to catalytic cracking of petroleum. The mass percentage of the paraffin base oil fraction in the transformer oil is 65%, the mass percentage of the naphthenic oil in the transformer oil is 25%, and the alkyl high boilers in the transformer oil The mass percentage in the oil is 9%, and at a temperature of 115°C, it is refined by adding clay with a weight percentage of 3wt% of transformer oil, and at the same time, it is stirred, refined and adsorbed for 40 minutes until the adsorption reaction is uniform. The mass percent of the anti-oxidant additive in the transformer oil is 0.6%, the mass percent of the anti-light sensitive agent in the transformer oil is 0.4%, and the vacuum pump cycle vacuum negative pressure is 0.8KPa for 2 times .

[0041] Further, the paraffin ...

Embodiment 3

[0049] The invention provides a transformer oil, which is composed of paraffin base oil fractions, naphthenic oil fractions, alkyl high boilers, antioxidant additives, and anti-photosensitizers that are subjected to catalytic cracking of petroleum. The mass percentage of the paraffin base oil fraction in the transformer oil is 70%, the mass percentage of the naphthenic oil in the transformer oil is 22%, and the alkyl high boilers in the transformer oil The mass percentage in the oil is 7%, and at a temperature of 120°C, it is refined by adding clay with a weight percentage of 4wt% to transformer oil, and at the same time, it is stirred, refined and adsorbed for 50 minutes until the adsorption reaction is uniform. The mass percent of the anti-oxidant additive in the transformer oil is 0.8%, the mass percent of the anti-light sensitive agent in the transformer oil is 0.2%, and the vacuum pump cycle vacuum negative pressure is 0.8KPa for 3 times .

[0050] Further, the paraffin ...

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Abstract

Transformer oil comprises paraffin base oil fraction, naphthenic base oil, alkyl high boiling substances, antioxidant and photosensitivity resistant agents. In the transformer oil, the weight percentage of the paraffin base oil fraction ranges from 60% to 75%, the weight percentage of the naphthenic base oil ranges from 19.4% to 28.5%, the weight percentage of the alkyl high boiling substances ranges from 5% to 10%, the weight percentage of the antioxidant ranges from 0.5% to 1.0%, and the weight percentage of the photosensitivity resistant agents ranges from 0.1% to 0.5%. The invention further provides a preparation method for the transformer oil, and the preparation method includes adding the paraffin base oil fraction, the naphthenic base oil and the alkyl high boiling substances in a reaction kettle; adding clay in the mixture to refine; performing stirring, refining and adsorbing at high temperature; adding antioxygen additives and photosensitivity agents in the mixture after themixture is filtered; and performing vacuum treatment once to three times in a vacuum pump under negative pressure of 0.8KPa. The kinematic viscosity of the transformer oil is 6.5mm<2> / s-9.5mm<2> / s, and the breakdown voltage reaches 55-80KV / 2.5mm.

Description

technical field [0001] The invention relates to the field of chemistry, in particular to organic chemistry, in particular to transformer oil, in particular to a transformer oil and a preparation method thereof. Background technique [0002] Transformer oil is used as insulation and heat dissipation medium materials of transformers in power transmission and transformation projects, and is obtained from mineral oil processing. According to the different voltage levels of power transmission and transformation, the voltage of 330KV or lower than 330KV can use the ordinary transformer oil of GB2536 standard. The 500KV voltage level should use SH0040 standard ultra-high voltage transformer oil. The basic functional requirements of transformer oil are insulation and heat dissipation. High withstand voltage and low dielectric loss value are the basic electrical performance requirements. With the development of high-voltage power transmission and transformation technology, in order...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M177/00C10N40/16C10N30/10
Inventor 汪志刚
Owner 上海中孚油品集团有限公司
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