Method for preparing anti-corrosion coating of fuel gas condenser

A technology for corrosion-resistant coatings and condensers, applied in the direction of coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of reducing thermal resistance of coatings, poor durability, large thermal resistance, etc., and achieve high bonding and durability The effect of strong corrosion and simple preparation steps

Inactive Publication Date: 2017-03-15
CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problems that the existing gas condenser anticorrosion organic coating is usually poorly combined with the base material, and the thermal resistance is relatively large, and the durability is poor, a method is provided by treating the leaves of the tung flower tree Dry extraction, collect the phytochelatin in the Tung flower tree, and load it into the paint. During the coating coating and curing process, the metal on the surface of the pipeline is complexed by the phytochelatin, so that the coating is tightly bonded, and at the same time significantly Reduce the thermal resistance of the coating, effectively solving the problems of poor bonding between the coating and the base material, large thermal resistance, and poor durability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, select fresh Tung flower leaves, heat them in an oil bath at 95°C for 2 minutes, then filter while hot and collect the filter cake, dry it naturally, grind and pass through a 50-mesh sieve, and collect Tung flower leaf powder, according to the quality Ratio 1:10, put it at 45°C, extract with petroleum ether for 2h, then filter and collect the filter cake, dry at 65°C for 6h, and prepare the treated tung flower leaf powder; by mass ratio 1:15 , Stir and mix the treated tung flower leaf powder prepared above with 35% ethanol, treat it at 65°C and 200W ultrasonic dispersion for 45min, then filter and collect the filtrate, and rotary evaporate at 45°C to 1% of the original volume. / 10, the concentrated solution was prepared; according to the mass ratio of 1:45, the aluminum chloride was stirred and mixed with the concentrated solution prepared above for 25min, and then the pH was adjusted to 7.0 with a mass fraction of 10% sodium hydroxide solution, and after standing...

example 2

[0019]First, select fresh Tung flower leaves, heat them in an oil bath at 97°C for 3 minutes, then filter while hot and collect the filter cake, dry it naturally, grind and pass through a 55-mesh sieve, and collect Tung flower leaf powder. Ratio 1:10, place it at 55°C, extract with petroleum ether for 3h, then filter and collect the filter cake, dry at 67°C for 7h, and prepare the treated tung flower leaf powder; by mass ratio 1:15 , Stir and mix the treated tung flower leaf powder prepared above with 35% ethanol, treat it at 67°C and 250W ultrasonic dispersion for 47min, then filter and collect the filtrate, and rotary evaporate at 52°C to 1% of the original volume. / 10, the concentrated solution is prepared; according to the mass ratio of 1:45, the aluminum chloride is stirred and mixed with the concentrated solution prepared above for 27min, then the pH is adjusted to 7.0 with a mass fraction of 10% sodium hydroxide solution, and after standing for 7h, Centrifuge at 4250r / m...

example 3

[0021] First select fresh Tung flower leaves, heat them in an oil bath at 100°C for 3 minutes, then filter while hot and collect the filter cake, dry it naturally, grind and pass through a 60-mesh sieve, collect Tung flower leaf powder, and measure Ratio 1:10, place it at 60°C, extract with petroleum ether for 3h, then filter and collect the filter cake, dry at 70°C for 8h, and prepare the treated tung flower leaf powder; by mass ratio 1:15 , Stir and mix the treated tung flower leaf powder prepared above with 35% ethanol, treat it at 70°C and 300W ultrasonic dispersion for 60min, then filter and collect the filtrate, and rotary evaporate at 60°C to 1% of the original volume. / 10, the concentrated solution is prepared; according to the mass ratio of 1:45, the aluminum chloride is stirred and mixed with the concentrated solution prepared above for 30min, then the pH is adjusted to 7.0 with mass fraction 10% sodium hydroxide solution, after standing for 8h, and then Centrifuge a...

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Abstract

The invention relates to a method for preparing an anti-corrosion coating of a fuel gas condenser, and belongs to the technical field of condenser coatings. Aiming at the problems that an existing anti-corrosion organic coating of the fuel condenser is usually poorly combined with a base material, and is high heat resistance and poor in durability, drying and extracting are carried out through aegiceras corniculatum leaves, phytochelatin in aegiceras corniculatum is collected and loaded into a coating, in the coating smearing and curing process, metal on the surface of a pipeline is subjected to complexation through the phytochelatin, the coating is smeared and combined tightly, and meanwhile the heat resistance of the coating is remarkably reduced. The prepared anti-corrosion coating of the fuel gas condenser is highly combined with a base and is high in corrosion resistance, the service life is prolonged by 10% to 25% compared with like products, the preparation steps are simple, and the method is environmentally friendly, safe and free of pollution.

Description

technical field [0001] The invention relates to a method for preparing a corrosion-resistant coating for a gas condenser, belonging to the technical field of condenser coatings. Background technique [0002] With the adjustment of the world's energy structure, new high-efficiency gas utilization technologies have attracted widespread attention. At present, the low thermal efficiency of traditional gas utilization equipment causes great energy waste and environmental pollution. If a flue gas condenser is installed at the tail of the gas utilization equipment, it can not only reduce the exhaust gas temperature, but also effectively recover the sensible heat and latent heat of the flue gas, thereby improving its gas utilization efficiency. Energy saving. Therefore, the condensing heat exchanger has the advantages of high efficiency, energy saving and environmental protection, and has great application potential in practical applications. Compared with traditional gas utilizat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC09D163/00C08L2205/03C09D5/08C09D7/61C09D7/63C09D7/65
Inventor 周丽花蒋玉芳
Owner CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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