Vegetable insulating oil and preparation method thereof

A technology of plant insulating oil and vegetable oil, which is applied in the direction of insulators, organic insulators, organic liquid insulators, etc., can solve the problems of insulating oil resistance to oxidation, low temperature performance and stability, and achieve high natural decomposition performance, strong overload capacity, Good security effect

Inactive Publication Date: 2012-07-04
GUANGDONG JOOYN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] An object of the present invention is to provide a vegetable insulating oil to solve the above-mentioned defects of existing insulating oils such as insufficient oxidation resistance, low temperature performance and stability

Method used

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  • Vegetable insulating oil and preparation method thereof
  • Vegetable insulating oil and preparation method thereof
  • Vegetable insulating oil and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Vegetable insulating oil of the present invention is mainly made of the following raw materials in weight percentage:

[0050] Vegetable oil 95%; antioxidant 2.5%; anticoagulant 2.5%; vegetable oil is rapeseed oil.

[0051] The preparation method of described vegetable insulating oil, comprises the following steps:

[0052] 1. The filter cloth filters the vegetable oil.

[0053] 2. Add an equal volume of 0.5% NaOH to neutralize the free fatty acid, add distilled water to extract the sodium fatty acid, separate the oil-water phase, and dry in vacuum.

[0054] 3. Add 2% activated carbon to the oil, decolorize at 60°C for 30 minutes, and filter to remove the activated carbon.

[0055] 4. Repeat steps 3 and 4 until the vegetable oil is transparent and clear.

[0056] 5. Add 2.5% of the antioxidant tert-butyl hydroquinone and 2.5% of the pour point depressant polyalphaolefin to the vegetable oil, and vibrate until transparent.

Embodiment 2

[0058] Vegetable insulating oil of the present invention is mainly made of the following raw materials in weight percentage:

[0059] Vegetable oil 98%; antioxidant 1.5%; anticoagulant 0.5%; vegetable oil is olive oil.

[0060] The preparation method of described vegetable insulating oil, comprises the following steps:

[0061] 1. The filter cloth filters the vegetable oil.

[0062] 2. Add an equal volume of 0.8% NaOH to neutralize the free fatty acid, add distilled water to extract the sodium fatty acid, separate the oil from water, and dry in vacuum.

[0063] 3. Add 1.5% activated carbon to the oil, decolorize at 60°C for 30 minutes, and filter to remove the activated carbon.

[0064] 4. Repeat steps 3 and 4 until the vegetable oil is transparent and clear.

[0065] 5. Add 1.5% of the antioxidant tert-butyl hydroquinone and 0.5% of the pour point depressant polyalphaolefin to the vegetable oil, and vibrate until transparent.

Embodiment 3

[0067] Vegetable insulating oil of the present invention is mainly made of the following raw materials in weight percentage:

[0068] Vegetable oil 96%; antioxidant 2%; pour point depressant 2%; vegetable oil is sunflower oil.

[0069] The preparation method of described vegetable insulating oil, comprises the following steps:

[0070] 1. The filter cloth filters the vegetable oil.

[0071] 2. Add an equal volume of 0.5% NaOH to neutralize the free fatty acid, add distilled water to extract the sodium fatty acid, separate the oil from water, and dry in vacuum.

[0072] 3. Add 1% activated carbon to the oil, decolorize at 60°C for 30 minutes, and filter to remove the activated carbon.

[0073] 4. Repeat steps 3 and 4 until the vegetable oil is transparent and clear.

[0074] 5. Add 2% of the antioxidant tert-butyl hydroquinone and 2% of the pour point depressant polyalphaolefin to the vegetable oil, and vibrate until transparent.

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Abstract

The invention discloses vegetable insulating oil, which is mainly prepared from the following raw materials in percentage by weight: 90 to 95 percent of vegetable oil and 2 to 5 percent of antioxidant. The invention also provides a method for preparing the vegetable insulating oil. The product is a novel vegetable insulating oil, is insulating oil for a transformer, is a high-performance insulating material extracted from renewable plants, and has the characteristics of environment friendliness, safe operation, long service life, high overload capacity, low carbon, energy saving and the like.

Description

technical field [0001] The invention relates to an insulating oil and a preparation method thereof, in particular to a vegetable insulating oil and a preparation method thereof. Background technique [0002] At present, researchers from the United States, Japan, Western Europe and other countries have conducted prospective research on vegetable oils and achieved certain results. For example, ABB's high oleic vegetable insulating oil and soybean oil-based transformer oil and cable oil; Japan's Fuji Electric Company has developed and manufactured small, light, rapeseed oil distribution transformers with good environmental performance; T.V.Oommen, etc. The physical, chemical and electrical properties of vegetable oil were studied, and the advantages and disadvantages of vegetable oil were analyzed; C.P.McShane et al. used vegetable insulating oil instead of mineral insulating oil without changing the type and structure of existing distribution transformers. The research showed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/20H01B19/00H01F27/32
Inventor 黄飞
Owner GUANGDONG JOOYN NEW MATERIAL TECH CO LTD
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