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Heat dissipation material used for transformer and preparation method thereof

A technology of heat dissipation materials and transformers, which is applied in the manufacture of inductors/transformers/magnets, cooling of transformers/inductors, and electrical components, etc. It can solve the problems of no verification of plant insulating oil and rarely involves the internal structure of transformers, etc., and achieves excellent heat dissipation effect , The effect of low material cost and simple preparation method

Inactive Publication Date: 2017-09-22
合肥励仙电力工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, the published application number is 201310581160.5, the name is a patent for the invention of a transformer cooling device, the application number is 201210085341.4, the name is a patent for the invention of a transformer cooling device, the application number is 201310327994.3, the name is a transformer automatic The invention patent of the heat dissipation device and the invention patent of the transformer with the application number 201510742112.9 and the name of a high-efficiency heat dissipation transformer are all from changing the external structure of the transformer to improve its heat dissipation characteristics, rarely involving the internal structure of the transformer, and not targeting vegetable insulating oil. Characteristic Verification of Invention Method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A heat dissipation material for a transformer, the heat dissipation material is composed of a gel and a high heat dissipation film dispersed in the gel.

[0023] The gel is an aerogel.

[0024] Aerogels are organic aerogels.

[0025] The high heat dissipation diaphragm is a combination of graphite diaphragm and graphene diaphragm.

[0026] The width of the high heat dissipation diaphragm is 7mm, and the length of the high heat dissipation diaphragm is 200mm.

[0027] The high heat dissipation diaphragm accounts for 20% of the total heat dissipation material mass.

[0028] A preparation method for a heat dissipation material for a transformer, comprising the following steps:

[0029] 1. Mix the precursors in the liquid phase to form a sol system, and disperse the high heat dissipation diaphragm in the sol system;

[0030] 2. When the sol forms a gel, it is a crude heat dissipation material;

[0031] 3. When the sol is transformed into a wet gel, the wet gel is dried...

Embodiment 2

[0035] A heat dissipation material for a transformer, the heat dissipation material is composed of a gel and a high heat dissipation film dispersed in the gel.

[0036] The gel is a lyogel.

[0037] Aerogels are oxide aerogels.

[0038] The high heat dissipation diaphragm is a combination of graphite diaphragm and graphene diaphragm.

[0039] The width of the high heat dissipation diaphragm is 7mm, and the length of the high heat dissipation diaphragm is 100mm.

[0040] The high heat dissipation diaphragm accounts for 30% of the total heat dissipation material mass.

[0041] A preparation method for a heat dissipation material for a transformer, comprising the following steps:

[0042] 1. Mix the precursors in the liquid phase to form a sol system, and disperse the high heat dissipation diaphragm in the sol system;

[0043] 2. When the sol forms a gel, it is a crude heat dissipation material;

[0044] 3. When the sol is transformed into a wet gel, the wet gel is dried to ...

Embodiment 3

[0048] A heat dissipation material for a transformer, the heat dissipation material is composed of a gel and a high heat dissipation film dispersed in the gel.

[0049] The gel is an aerogel.

[0050] The airgel is carbon aerogel.

[0051] The high heat dissipation diaphragm is a combination of graphite diaphragm and graphene diaphragm.

[0052] The width of the high heat dissipation diaphragm is 3mm, and the length of the high heat dissipation diaphragm is 100mm.

[0053] The high heat dissipation diaphragm accounts for 20% of the total heat dissipation material mass.

[0054] A preparation method for a heat dissipation material for a transformer, comprising the following steps:

[0055] 1. Mix the precursors in the liquid phase to form a sol system, and disperse the high heat dissipation diaphragm in the sol system;

[0056] 2. When the sol forms a gel, it is a crude heat dissipation material;

[0057] 3. When the sol is transformed into a wet gel, the wet gel is dried ...

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Abstract

A heat dissipation material for a transformer and a preparation method thereof, the heat dissipation material is composed of a gel and a high thermal conductivity diaphragm dispersed in the gel, and the gel is a liquid gel, an aerogel, or a carbon aerogel, and has a high thermal conductivity The diaphragm is a graphite diaphragm or a graphene diaphragm, and the high thermal conductivity diaphragm accounts for 20‑30% of the total heat dissipation material mass. The present invention obtains an expandable high heat dissipation material by applying high thermal conductivity materials to gel products, and realizes a new type of lightweight high heat dissipation material, which is suitable for heat dissipation of power equipment such as transformers, and has excellent heat dissipation effect, and It has good insulation performance, its preparation method is simple, its material cost is low, and it is suitable for industrialized large-scale production.

Description

technical field [0001] The invention belongs to the technical field of heat dissipation of electric equipment, and in particular relates to a heat dissipation material for a transformer and a preparation method thereof. Background technique [0002] At present, most of the rural distribution transformers in the distribution network are in light-load operation state, and the annual average load rate is low. However, when the power load period is relatively concentrated and the power load increases sharply, it is easy to cause serious overload of the transformer in a short period of time. Even burning out, etc. Therefore, in order to ensure the economical operation of rural distribution transformers, high overload transformers have been developed. High overload transformers mainly achieve overload performance through the following three aspects: 1. Optimizing the structure of the distribution transformer, by increasing the number of high and low voltage winding oil passages of...

Claims

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Application Information

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IPC IPC(8): H01F27/22H01F27/08H01F41/00
CPCH01F27/22H01F27/08H01F41/00
Inventor 伍文慧
Owner 合肥励仙电力工程有限公司