Transformer oil and preparation method thereof

A technology of transformer oil and silicone oil, applied in the field of lubricating oil, can solve the problems of no silicone oil transformer oil, no silicone oil transformer oil research report, etc.

Active Publication Date: 2013-01-30
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no national standard or industry standard for silicone oil transforme...

Method used

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  • Transformer oil and preparation method thereof

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Embodiment Construction

[0031] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with the examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention rather than limiting the patent requirements of the present invention.

[0032] Example of acid polymerization process

[0033] Reaction materials and specifications:

[0034] (1) Dimethyldichlorosilane hydrolyzate, kinematic viscosity at 25°C 5-20mm 2 / s

[0035] (2) Hexamethyldisiloxane, boiling range 99~102℃

[0036] catalyst:

[0037] Concentrated sulfuric acid, concentration ≥ 95%

[0038] Material ratio:

[0039] The mass ratio of hexamethyldisiloxane to dimethyldichlorosilane hydrolyzate is 2-8%, preferably 4-6%; the amount of catalyst added is 2-10% of the total reactants, preferably 4-8% %.

[0040] Polymerization reaction temperature: 10-60°C, preferably 20-50°...

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Abstract

The invention provides synthetic transformer oil and a preparation method thereof. Dimethyl silicone oil is used as base oil, the purity of the dimethyl silicone oil is improved by post-treatment processes such as molecular distillation, precision filtration and adsorption, and the physical, chemical and electrical properties of the dimethyl silicone oil are improved, so that the dimethyl silicone oil can meet the requirements of international standards on the technical specifications of the silicone oil transformer oil.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a synthetic transformer oil and a preparation method thereof. Background technique [0002] There are many ways to classify transformers. If they are classified according to the cooling medium, they can be divided into dry-type transformers, oil-immersed transformers and gas-filled transformers. The oil-immersed transformer has a compact structure and good cooling effect. Under the condition of similar efficacy, the product investment is lower and the performance is more reliable. Transformer oil has two main functions: one is to insulate between transformer windings, windings and iron cores, and oil tanks; the other is to generate convection after the transformer oil is heated to dissipate heat from the transformer core and windings. [0003] Mineral oil-type transformer oil is the most widely used one, but it has the disadvantage of not being able to balance high and l...

Claims

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Application Information

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IPC IPC(8): C10M107/50C10M177/00C08G77/04C10N40/16
Inventor 蒋国柱谢宇赵玉贞罗玉兰曹毅宗明
Owner CHINA PETROLEUM & CHEM CORP
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