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Transformer tank spraying technology

A transformer oil tank technology, applied in the direction of coating, epoxy resin coating, liquid coating device on the surface, etc., can solve the problems of no prevention of collision, falling off, cracks, corrosion of the oil tank body, etc., and achieve excellent dielectric properties Properties, good elasticity, effect of small dielectric constant

Active Publication Date: 2018-07-20
浙江省江山市电力变压器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main disadvantage of the existing spray paint film on the transformer oil tank is that it is easy to cause peeling and cracks, so that the oil tank body will be corroded, and there are no measures to prevent possible collisions in daily use

Method used

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  • Transformer tank spraying technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1. Clean, phosphate and dry the fuel tank to be sprayed.

[0026] Step 2. Spray the first film of chlorinated rubber mica iron paint on the inside and outside of the fuel tank.

[0027] Step 3. After drying, spray a layer of elastic resin buffer layer on the first paint film of the fuel tank.

[0028] Step 4. Spray the second epoxy resin paint film on the elastic resin buffer layer after drying.

[0029] The preparation method of the elastic resin buffer layer is as follows: in a reaction kettle, add 100Kg of pyromellitic dianhydride, 67.5Kg of diphenyl ether diamine, 3Kg of 1,2-bis(trimethylsiloxy)cyclobutene , 1,1-dimethylsila-11-crown ether-42Kg, heated up to 132°C, reacted for 5.5h, after the reaction, added 2Kg of glutathione sepharose and 6Kg of calcium carbonate to the product to obtain Elastic resin cushioning.

Embodiment 2

[0031] Step 1. Clean, phosphate and dry the fuel tank to be sprayed.

[0032] Step 2. Spray the first film of chlorinated rubber mica iron paint on the inside and outside of the fuel tank.

[0033] Step 3. After drying, spray a layer of elastic resin buffer layer on the first paint film of the fuel tank.

[0034] Step 4. Spray the second epoxy resin paint film on the elastic resin buffer layer after drying.

[0035] The preparation method of the elastic resin buffer layer is as follows: in a reaction kettle, add 100Kg of pyromellitic dianhydride, 60Kg of diphenyl ether diamine, and 1.5Kg of 1,2-bis(trimethylsiloxy)cyclobutene , 1,1-dimethylsila-11-crown ether-41Kg, heat up to 125°C, react for 3 hours, add 1Kg of glutathione agarose gel and 4Kg of calcium carbonate to the product after the reaction, and obtain elasticity Resin buffer layer.

Embodiment 3

[0037] Step 1. Clean, phosphate and dry the fuel tank to be sprayed.

[0038] Step 2. Spray the first film of chlorinated rubber mica iron paint on the inside and outside of the fuel tank.

[0039] Step 3. After drying, spray a layer of elastic resin buffer layer on the first paint film of the fuel tank.

[0040] Step 4. Spray the second epoxy resin paint film on the elastic resin buffer layer after drying.

[0041] The preparation method of the elastic resin buffer layer is as follows: in a reaction kettle, add 100Kg of pyromellitic dianhydride, 75Kg of diphenyl ether diamine, 4.5Kg of 1,2-bis(trimethylsiloxy)cyclobutene , 1,1-dimethylsila-11-crown ether-43Kg, heat up to 140°C, react for 8 hours, add 3Kg of glutathione sepharose and 8Kg of calcium carbonate to the product after the reaction, and obtain elasticity Resin buffer layer.

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PUM

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Abstract

The invention relates to a transformer tank spraying technology. The transformer tank spraying technology comprises the following steps that (1) a tank needing to be sprayed is subject to cleaning, phosphorization and drying; (2) the inner side and the outer side of the tank are each sprayed with a first paint film; (3) after drying is carried out, the first paint films are each sprayed with an elastic resin buffer layer; and (4) after drying, the elastic resin buffer layers are each sprayed with a second paint film.

Description

technical field [0001] The invention relates to a transformer oil tank spraying technology. Background technique [0002] The oil tank is the shell of the transformer, which contains the iron core and winding and is filled with transformer oil so that the iron core and winding are immersed in the oil. Transformer oil plays the role of insulation and heat dissipation. Large transformers generally have two oil tanks, one is the body oil tank; the other is the on-load pressure regulating oil tank, and the on-load pressure regulating oil tank is equipped with a tap changer. This is because the tap changer will generate an arc during operation, and if it is operated frequently, the insulation performance of the oil will be reduced, so a separate oil tank is provided to place the tap changer separately. [0003] Common transformer oil tanks have three basic types according to their capacity: box type oil tank, bell type oil tank and sealed oil tank. [0004] CN102962187A disclo...

Claims

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Application Information

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IPC IPC(8): B05D7/00B05D7/26C09D7/61C09D163/00C09D179/08
CPCB05D7/26B05D7/586B05D2504/00B05D2518/10B05D2530/00B05D2601/20C08K2003/265C09D163/00C09D179/08B05D2420/01B05D2425/02B05D2425/03
Inventor 刘立忠
Owner 浙江省江山市电力变压器有限公司