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Transformer oil and preparation method thereof

A technology of transformer oil and mineral oil, which is applied in the field of transformers and can solve difficult problems such as insulation, heat conduction and flame retardancy

Inactive Publication Date: 2016-03-16
WUHU JINNIU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, electrical insulating oil can meet the requirements of high insulation, but it is difficult to meet the requirements of excellent insulation resistance, heat conduction and flame retardancy at the same time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] The invention provides a kind of preparation method of transformer oil, comprising:

[0015] 1) The plant powder is obtained by pulverizing Jatropha japonica, Jujube japonica, Routuoguo and Pistacia chinensis;

[0016] 2) mixing plant powder, water, pectinase, cellulase and acid and heat-treating, then adding lye for neutralization to obtain an enzymolysis mixture;

[0017] 3) subjecting the enzymolysis mixture to fractionation, and then collecting fractions at 180-200°C to obtain plant extracts;

[0018] 4) Mineral oil, vegetable oil, plant extract, phosphoric acid ester, nitrite, triethanolamine, antioxidant, neopentyl glycol and triazole compounds are mixed, and then dried to obtain transformer oil.

[0019] In step 1) of the present invention, the amount of each substance can be selected within a wide range, but in order to make the prepared transformer oil have more excellent performances of anti-insulation, heat conduction and flame retardancy, preferably, relati...

Embodiment 1

[0030] 1) Pulverize the jatropha seeds, the jacaranda, the fruit and the pistachio according to the weight ratio of 100:35:45:18 to obtain a plant powder with a particle size of 0.4mm;

[0031] 2) Mix plant powder, water, pectinase, and cellulase with acid in a weight ratio of 100:225:18:14 so that the pH of the system is 4 and heat-treat at 80°C for 1.5h, then add lye to carry out Neutralize to obtain an enzymolysis mixture (pH is 7);

[0032] 3) subjecting the enzymolysis mixture to fractionation, and then collecting fractions at 180-200°C to obtain plant extracts;

[0033] 4) Mineral oil, vegetable oil, plant extract, phosphate ester, nitrite, triethanolamine, antioxidant (p-tert-butylcatechol), neopentyl glycol and triazole compound (1-H-1,2 , 4-triazole) were mixed according to the weight ratio of 100:50:25:13:6:11:1.5:25:7, and then dried to obtain transformer oil A1 with a water content of 0.05% by weight.

Embodiment 2

[0035] 1) Pulverize the jatropha seeds, the jacaranda, the fruit and the pistachio according to the weight ratio of 100:30:40:13 to obtain a plant powder with a particle size of 0.3mm;

[0036] 2) Mix plant powder, water, pectinase, and cellulase with acid in a weight ratio of 100:200:15:8 to make the pH of the system 3.5 and heat-treat at 75°C for 1 hour, then add lye to carry out And to make the enzymolysis mixture (pH is 6.8);

[0037] 3) subjecting the enzymolysis mixture to fractionation, and then collecting fractions at 180-200°C to obtain plant extracts;

[0038] 4) Mineral oil, vegetable oil, plant extract, phosphate, nitrite, triethanolamine, antioxidants (p-tert-butylcatechol, 4-ethylcatechol and o-methylhydroquinone) , neopentyl glycol and triazole compounds (4-amino-1,2,4-triazole) are mixed according to the weight ratio of 100:40:17:10:4:9:1:22:4, and then dried Transformer oil A2 with a water content of 0.03% by weight.

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Abstract

The invention discloses transformer oil and a preparation method thereof. The preparation method includes the steps that 1, idesia polycarpa, poliothyrsis sinensis, semecarpus anacardius L.f. and Pistacia chinensis Bunge are smashed to obtain plant powder; 2, the plant power, water, pectinase, cellulase and acid are mixed and undergo heat treatment, and then alkali liquor is added to perform neutralization so as to prepare enzymatic mixed liquid; 3, the enzymatic mixed liquid is subjected to fractionation treatment, and then the fraction of 180-200 DEG C is collected to prepare a plant extract; 4, mineral oil, vegetable oil, the plant extract, phosphate ester, nitrite, triethanolamine, an antioxidant, neopentyl glycol and a triazole compound are mixed, and then drying is performed to prepare the transformer oil. The transformer oil prepared by means of the method has excellent insulation resistance, thermal conductivity and flame retardant performances.

Description

technical field [0001] The invention relates to a transformer, in particular to a transformer oil and a preparation method thereof. Background technique [0002] Electrical insulating oil is used in electrical equipment such as transformers and transformers. It is not only used as an insulating medium for electrical equipment, but also as a heat-conducting medium for conducting heat energy in electrical equipment. It mainly plays the role of insulation and cooling. [0003] With the continuous development of the power industry, the power grid and power load are increasing, and the safety requirements of users for electrical equipment such as transformers and oil are also increasing. Especially in the high-rise buildings of the urban power grid, higher requirements have been put forward for the fire resistance of the oil-immersed transformers used, so that the electrical insulating oil used should have a higher ignition point (according to GB / T3536 or ASTMD92 method, the igni...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N40/16
Inventor 黄志才肖伟林冯俊刘朝振卞传林
Owner WUHU JINNIU ELECTRIC
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