Compound antioxidant for natural ester insulating oil and application thereof

An anti-oxidant and insulating oil technology, applied in the direction of organic insulators, organic liquid insulators, etc., can solve the problems of short anti-oxidation time, poor anti-oxidation effect, and increased cost, and achieve improved anti-oxidation ability, good compatibility, and uniform dispersion Effect

Active Publication Date: 2018-02-09
武汉泽电新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the antioxidants currently used are single chemical agents, which have poor antioxidative effect and short antioxidative time.
In order to achieve the ideal anti-oxidation effect, the amount of anti-oxidant should be increased, which will increase the cost and may affect the performance of insulating oil. How to improve the solubility of anti-oxidant and insulating oil is also a big problem

Method used

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  • Compound antioxidant for natural ester insulating oil and application thereof
  • Compound antioxidant for natural ester insulating oil and application thereof
  • Compound antioxidant for natural ester insulating oil and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] product ingredients:

[0051]

[0052] This example contains only C 16 ~C 22 fatty acid glycerides.

[0053] As well as tert-butylhydroquinone, di-tert-butyl-p-cresol and citric acid.

Embodiment 2

[0055] product ingredients:

[0056]

[0057] This example contains C 8 ~C 14 Fatty acid glycerides and C 16 ~C 22 fatty acid glycerides.

[0058] As well as tert-butylhydroquinone, propyl gallate and citric acid.

Embodiment 3

[0060] product ingredients:

[0061]

[0062]

[0063] This example contains C 8 ~C 14 Fatty acid glycerides and C 16 ~C 22 fatty acid glycerides. As well as tertiary butyl hydroquinone, propyl gallate, citric acid and vitamin C.

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PUM

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Abstract

The invention discloses a compound antioxidant for natural ester insulating oil. The compound antioxidant contains glyceride and at least one of the following components: tert-butylhydroquinone, butylated hydroxytoluene and propylgallate, wherein the mass percentage of each component accounting for total mass meets the following relations: the mass percentage of tert-butylhydroquinone is smaller than 10%; the mass percentage of butylated hydroxytoluene is smaller than 3%; the mass percentage of propylgallate is smaller than 3%; and the mass percentage of glyceride is greater than 80%. According to the compound antioxidant for natural ester insulating oil provided by the invention, various antioxidant and synergistic components are matched with one another, so that the antioxidant ability of natural ester insulating oil is improved; and moreover, the compound antioxidant is good in intermiscibility with natural ester insulating oil, and is uniformly dispersed after merging, and the insulating property of natural ester insulating oil is not influenced.

Description

technical field [0001] The invention belongs to the field of insulating oil additives, and more specifically relates to a compound antioxidant for natural ester insulating oil and its application. Background technique [0002] As an important liquid insulating material, insulating oil is compared to the blood in power generation and power supply equipment. It is used in various reactors, transformers, oil-immersed transformers and other power equipment, which has a direct impact on the safe operation of the power system. . After the new insulating oil is put into operation, it contacts with the air to absorb dissolved oxygen and combine with it. Under the action of temperature, electric field and the catalysis of metal components, the oxidation process is accelerated, causing the performance of the insulating oil to deteriorate, which will lead to equipment failure. In order to delay the oil deterioration of traditional mineral oil insulating oil, the commonly used antioxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/20
CPCH01B3/20
Inventor 胡婷周竹君余阳吴义华詹浩
Owner 武汉泽电新材料有限公司
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