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A way to utilize nano-tio 2 Preparation of Insulating Oil Against Charge Accumulation from Modified Sunflower Oil

A technology of sunflower oil and charge accumulation, which is applied in the petroleum industry, additives, lubricating compositions, etc., can solve problems such as the inability to ensure the safe operation of insulating oil paper, improve the anti-charge accumulation performance, improve the anti-charge accumulation ability, and solve agglomeration Effect

Active Publication Date: 2022-07-29
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, sunflower seed insulating oil has been used as transformer insulating oil due to its advantages of breakdown resistance, high ignition point, and environmental protection, but the space charge accumulation characteristics of sunflower seed insulating oil cannot guarantee the safe operation of insulating oil paper, thus limiting its wide application

Method used

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  • A way to utilize nano-tio <sub>2</sub> Preparation of Insulating Oil Against Charge Accumulation from Modified Sunflower Oil
  • A way to utilize nano-tio <sub>2</sub> Preparation of Insulating Oil Against Charge Accumulation from Modified Sunflower Oil
  • A way to utilize nano-tio <sub>2</sub> Preparation of Insulating Oil Against Charge Accumulation from Modified Sunflower Oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of nanometer TiO 2 The preparation of anti-charge accumulation insulating oil from modified sunflower oil includes the following steps:

[0025] (1) Preparation of modified nano-TiO 2 : Weigh 5g of TiO 2 The nanoparticles were put into a grinder and ground for 3 hours at a rotational speed of 300r / min. Then, nano-TiO2 was added to 200ml of absolute ethanol and mixed, and then oleic acid and acrylic rosin with a mass ratio of 3:1:1 were added to the mixture. Surface modification is carried out with a modifier composed of polyoxyethylene sucrose ester and polyethylene glycol, and the addition amount of the modifier is 8% of TiO2, washed with ethanol, and fully dried at a pressure of 50Pa and a temperature of 60°C to obtain Modified nano-TiO2.

[0026] (2) TiO2 modified sunflower oil: 500g of sunflower seed insulating oil was vacuum-dried at room temperature, heated to 45°C, stirred for 30 min at a rotational speed of 100 r / min, and then added the above-mentioned...

Embodiment 2

[0028] A kind of nanometer TiO 2 The preparation of anti-charge accumulation insulating oil from modified sunflower oil includes the following steps:

[0029] (1) Preparation of modified nano-TiO 2 : Weigh 10g TiO 2 The nanoparticles were put into the grinder and ground for 2h at a speed of 500r / min, and then the nano-TiO 2 Add to 200ml of absolute ethanol and mix, and then add a modifier composed of oleic acid, acrylic rosin polyoxyethylene sucrose ester and polyethylene glycol in a mass ratio of 4:2:1 to the mixture for surface modification. The added amount of the modifier is 7% of the TiO2, washed with ethanol, and fully dried at a pressure of 50Pa and a temperature of 60°C to obtain the modified nano-TiO2.

[0030] (2) TiO2 modified sunflower oil: vacuum-dry 500 g of sunflower seed insulating oil at room temperature, heat it to 50°C, stir for 60 min at a rotational speed of 50 r / min, and then add the above-mentioned modified nanometers to the sunflower seed insulating ...

Embodiment 3

[0032] A kind of nanometer TiO 2 The preparation of anti-charge accumulation insulating oil from modified sunflower oil includes the following steps:

[0033] (1) Preparation of modified nano-TiO 2 : Weigh 15g TiO 2 The nanoparticles were put into the grinder and ground at a speed of 400r / min for 2.5h, and then the nano-TiO 2 Add it to 200ml of absolute ethanol and mix, and then add a modifier composed of oleic acid, acrylic rosin polyoxyethylene sucrose ester and polyethylene glycol in a mass ratio of 3:2:1 to the mixture for surface modification. The added amount of the modifier is 6% of the TiO2, washed with ethanol, and fully dried at a pressure of 60Pa and a temperature of 70°C to obtain the modified nano-TiO2.

[0034] (2) TiO2 modified sunflower oil: vacuum-dry 500 g of sunflower seed insulating oil at room temperature, heat it to 55°C, stir for 30 min at a rotational speed of 150 r / min, and then add the above modified nanometers to the sunflower seed insulating oil ...

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Abstract

The invention discloses a kind of nanometer TiO 2 To prepare the anti-charge accumulation insulating oil from modified sunflower seed oil, the sunflower seed insulating oil is vacuum-dried, heated to 40-60°C, stirred for 30-60min, and modified by adding 1-4% of its mass to the sunflower seed insulating oil. Nano TiO 2 , ultrasonic oscillation is uniform, and modified sunflower oil is obtained; the modified nano-TiO 2 The preparation method is as follows: the nano-TiO 2 The particles are fully ground in a grinder, then anhydrous ethanol is added to mix, and a modifier composed of oleic acid, acrylic rosin polyoxyethylene sucrose ester and polyethylene glycol is added to the mixture for surface modification, and ethanol is washed. Drying to obtain modified nano-TiO 2 . The method of the present invention adopts nanometer titanium dioxide (TiO 2 ) Particle-modified sunflower seed insulating oil, which improves the anti-charge accumulation ability of sunflower seed insulating oil, makes the electric charge easy to dissipate and difficult to accumulate under the premise of ensuring its electrical insulation performance, and reduces the electric field distortion caused by the electric charge accumulation. , make the transformer run more safely.

Description

technical field [0001] The invention relates to the technical field of electrical insulation, in particular to the preparation of anti-charge accumulation insulating oil by using nano-TiO2 modified sunflower oil. Background technique [0002] The power system provides important energy for all walks of life, and it plays an indispensable and important role in my country's current social and economic development and people's lives. As the key equipment in the power system, the oil-immersed transformer can cause power failure and other accidents. Therefore, it is very important to ensure the safe and reliable operation of the transformer. [0003] Oil-immersed transformer is the key equipment of power system, its failure will lead to power outage and cause great economic loss. The insulation performance of oil-immersed transformers mainly depends on the inner insulation composed of insulating oil and insulating paper. During the long-term operation of the oil-paper insulatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M125/10C10M177/00C10N30/04C10N40/16
CPCC10M125/10C10M177/00C10M2201/062C10M2201/14C10M2207/401C10M2207/126C10M2209/104C10M2209/12C10N2030/04C10N2040/16C10N2020/06
Inventor 刘捷丰张镱议邢中玉李毅范贤浩
Owner GUANGXI UNIV
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