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Anticorrosive wetting coating material and method and condensing unit heat exchanger

A technology for coating materials and tubular heat exchangers, applied in anti-corrosion coatings, evaporators/condensers, coatings, etc., can solve problems such as corrosion effects of metal heat exchangers, improve wetting effect, and improve The service life and the effect of improving the heat exchange effect

Inactive Publication Date: 2020-01-14
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cooling water sprayed by the water distribution system is directly sprayed on the metal material of the heat exchanger. Since no matter what type of heat exchanger it is, it is impossible to achieve full wetting of the heat exchange metal material by spraying on one side. There will be "dry spots", which will have a negative impact on the heat transfer efficiency. In addition, the water quality in some areas is weakly acidic, which will have a corrosion effect on the metal heat exchanger

Method used

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  • Anticorrosive wetting coating material and method and condensing unit heat exchanger
  • Anticorrosive wetting coating material and method and condensing unit heat exchanger
  • Anticorrosive wetting coating material and method and condensing unit heat exchanger

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A kind of anticorrosion wetting coating material of the present embodiment, comprises primer paint and finish paint;

[0041] The primer coating is made of the following raw materials in weight percentage: modified resin 60%, water 22.5%, alcohol ether solvent 10%, curing agent 7%, defoamer 0.5%; since the primer coating is added with modified resin , the three-dimensional polymer network film formed by the cross-linking reaction of the modified resin can not only make the primer coating have excellent anti-corrosion performance, eliminate the influence of water quality, but also improve the interlayer composite force between the coating and the coating , and the interlayer composite force between the coating and the surface of the heat exchanger carrier, it is not easy to fall off.

[0042] The topcoat is made of the following raw materials in weight percentage: 15% modified acrylic resin, 22% modified polyacrylamide resin, 8% alcohol ether solvent, 0.5% defoamer, and ...

Embodiment 2

[0057] A kind of anticorrosion wetting coating material of the present embodiment, comprises primer paint and finish paint;

[0058] The primer coating is made of the following raw materials in weight percentage: 52.95% modified resin, 40% water, 6% alcohol ether solvent, 1% curing agent, and 0.05% defoamer; since the modified resin is added to the primer coating , the three-dimensional polymer network film formed by the cross-linking reaction of the modified resin can not only make the primer coating have excellent anti-corrosion performance, eliminate the influence of water quality, but also improve the interlayer composite force between the coating and the coating , and the interlayer composite force between the coating and the surface of the heat exchanger carrier, it is not easy to fall off.

[0059] The topcoat is made of the following raw materials in weight percentage: 9% modified acrylic resin, 12% modified polyacrylamide resin, 4% alcohol ether solvent, 0.05% defoame...

Embodiment 3

[0074] A kind of anticorrosion wetting coating material of the present embodiment, comprises primer paint and finish paint;

[0075] The primer coating is made of the following raw materials in weight percentage: 47.7% modified resin, 40% water, 8% alcohol ether solvent, 4% curing agent, and 0.3% defoamer; since the modified resin is added to the primer coating , the three-dimensional polymer network film formed by the cross-linking reaction of the modified resin can not only make the primer coating have excellent anti-corrosion performance, eliminate the influence of water quality, but also improve the interlayer composite force between the coating and the coating , and the interlayer composite force between the coating and the surface of the heat exchanger carrier, it is not easy to fall off.

[0076] The topcoat is made of the following raw materials in weight percentage: 12% modified acrylic resin, 17% modified polyacrylamide resin, 6% alcohol ether solvent, 0.3% defoamer,...

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Abstract

The invention discloses an anticorrosive wetting coating material. The anticorrosive wetting coating material comprises a primer coating material and a finishing coating material, wherein the primer coating material is prepared from the following raw materials in percentage by weight: 30%-60% of modified resin, 0-40% of water, 6%-10% of an alcohol ether solvent, 1%-7% of a curing agent and 0.05%-0.5% of a defoaming agent; the finishing coating material is prepared from the following raw materials in percentage by weight: 9%-15% of modified acrylic resin, 12%-22% of modified polyacrylamide resin, 4%-8% of an alcohol ether solvent, 0.05%-0.5% of a defoaming agent and 0-80% of water; and the primer coating material is enabled to have excellent anti-corrosion performance, interlayer compositeforce between the coating and the coating is improved, meanwhile, the finishing coating material is enabled to have good hydrophilic performance, the wetting effect of the finishing coating material is improved, the situation of "dry spots" is reduced, and the heat exchange effect is improved.

Description

technical field [0001] The invention relates to the technical field of condensers, in particular to an anti-corrosion wetting coating material, an anti-corrosion wetting coating method and a heat exchanger of a condensing unit. Background technique [0002] The evaporative cooling air conditioner unit is a high-efficiency heat exchange device. The external unit of the unit is composed of a fan, a heat exchanger, a cooling spray device, a box and other components. The heat exchange material of the outer layer of the evaporative condenser, regardless of the tube heat exchanger or the plate heat exchanger, is generally stainless steel, copper, galvanized steel and other metal materials, and the cooling water is sprayed onto the surface of the metal material of the heat exchanger through the spray device And the entry of fresh air realizes the cooling of the refrigerant medium. [0003] The cooling water sprayed by the water distribution system is directly sprayed on the metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D163/00C09D133/26C09D5/08B05D5/00B05D5/04B05D3/10B05D7/24B05D7/14F25B39/04
CPCB05D3/102B05D5/00B05D5/04B05D7/14B05D7/24B05D7/546B05D2451/00B05D2502/005B05D2504/00C08L2312/00C09D5/08C09D133/00C09D133/26C09D163/00F25B39/04C08L33/00B05D2420/01B05D2420/02
Inventor 李路王奇沈仁敏李庆鑫肖艺光符众张岚原邢煊烨
Owner GREE ELECTRIC APPLIANCES INC
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