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Anti-corrosion coating, heat exchanger applying anti-corrosion coating and coating method

An anti-corrosion coating and heat exchanger technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of complex construction process, insufficient anti-corrosion performance, and no functionality, achieve good overall uniformity, and ensure the overall coating. The effect of uniformity and corrosion resistance improvement

Pending Publication Date: 2022-04-12
SHENZHEN ENVICOOL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing heat exchangers mainly use conventional anti-corrosion coatings. Conventional organic coatings have insufficient anti-corrosion properties, thick coatings, uneven coatings, no functionality, and cannot meet the needs of long-term use in harsh corrosive environments. , and the construction process is complex

Method used

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  • Anti-corrosion coating, heat exchanger applying anti-corrosion coating and coating method
  • Anti-corrosion coating, heat exchanger applying anti-corrosion coating and coating method
  • Anti-corrosion coating, heat exchanger applying anti-corrosion coating and coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Pretreatment of heat exchanger:

[0052] The heat exchanger 100 is subjected to dedusting, degreasing and degreasing and passivation treatment respectively;

[0053] (2) Coating:

[0054] Immerse the heat exchanger 100 as a whole in the solution of the hydrophobic silicone nano-coating 200 with a concentration of 20%, let it stand for 10-30 seconds, take out the heat exchanger 100 and remove the liquid on its surface, and place the heat exchanger 100 at 100- In an oven at 150°C, let it stand still for 5-10 minutes; repeat the above actions, and then place the heat exchanger 100 in an oven at 150-200°C, and let it stand for 10-30 minutes, so that the hydrophobic silicone nano-coating 200 is cured, and then heat exchange The surface of the heat exchanger 100 is sprayed with a fluorocarbon resin coating 300, and after the fluorocarbon resin coating 300 is cured, the heat exchanger 100 is taken out and allowed to stand at room temperature.

[0055] Preferably, the fil...

Embodiment 2

[0057] (1) Pretreatment of heat exchanger:

[0058] The heat exchanger 100 is subjected to dedusting, degreasing and degreasing and passivation treatment respectively;

[0059] (2) Coating:

[0060] Immerse the heat exchanger 100 as a whole in the solution of the hydrophobic silicone nano-coating 200 with a concentration of 30%, let it stand for 10-30 seconds, then take out the heat exchanger 100 and remove the liquid on its surface, and place the heat exchanger 100 in Stand in an oven at 150-200°C for 10-30 minutes to cure the hydrophobic silicone nano-coating 200, then take out the heat exchanger 100 and let it stand at room temperature.

Embodiment 3

[0062] (1) Pretreatment of heat exchanger:

[0063] The heat exchanger 100 is subjected to dedusting, degreasing and degreasing and passivation treatment respectively;

[0064] (2) Coating:

[0065] Immerse the heat exchanger 100 as a whole in the solution of the hydrophobic silicone nano-coating 200 with a concentration of 20%, let it stand for 10-30s, then take out the heat exchanger 100 and remove the liquid on its surface, and place it at 100-150°C In the oven, let it stand for 5-10 minutes; repeat the above actions, then place the heat exchanger 100 in an oven at 150-200 ° C, and let it stand for 10-30 minutes to cure the hydrophobic silicone nano-coating 200, then take out the heat exchanger 100 Let stand to room temperature.

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Abstract

According to the anti-corrosion coating, the heat exchanger applying the anti-corrosion coating and the coating method, the surface of the heat exchanger is coated with the nanometer hydrophobic coating, organic-inorganic hybrid organic silicon serves as a main component, the main chain of the organic-inorganic hybrid organic silicon is an inorganic Si-O-Si chain segment, the anti-corrosion performance is better than that of organic silicon, Si-OH and the surface of a metal base material can easily form a Si-O-Me bond, and therefore the anti-corrosion performance of the heat exchanger is improved. Therefore, the adhesive force between the coating and the metal base material can be enhanced; the branched chain is a hydrophobic organic chain segment, so that the hydrophobic organic chain segment has good hydrophobicity. On one hand, the overall uniformity of the coating is guaranteed, and on the other hand, the production process is simplified. The coating is an organic-inorganic hybrid coating and is subjected to hydrophobic functionalization or added with a hydrophobic coating, so that the coating has better corrosion resistance, the scaling period is delayed, and the heat exchange performance of the heat exchanger in long-term use is ensured. During production, the heat exchanger only needs to be immersed in the coating, so that the production efficiency is improved, the manufacturing cost is reduced, and the production period is shortened.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to an anti-corrosion coating, a heat exchanger using the anti-corrosion coating and a coating method. Background technique [0002] Heat exchangers are generally made of aluminum, copper, and stainless steel. They are widely used in industrial fields such as data centers, computer rooms, base stations, and energy storage. With the continuous expansion of their application fields, their anti-corrosion requirements are getting higher and higher, especially It is suitable for corrosive environments such as chemical industry, seaside, sea, and spraying. [0003] Existing heat exchangers mainly use conventional anti-corrosion coatings. Conventional organic coatings have insufficient anti-corrosion properties, thick coatings, uneven coatings, no functionality, and cannot meet the needs of long-term use in harsh corrosive environments. , and the construction process is complex. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D1/00C09D127/12C09D5/08F28F19/02
Inventor 胡明明任现文
Owner SHENZHEN ENVICOOL TECH
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