Design and preparation method of anti-fouling nano-composite coating for steel-based aluminum fin tube bundles of air coolers

A nano-composite, aluminum-fin technology, applied in design optimization/simulation, coating, liquid chemical plating, etc., can solve the problems that fins are easy to absorb dust particles, lack, and the heat dissipation efficiency of finned tubes has a great impact, etc. Achieve the effect of reducing corrosion aging rate, scientific and reasonable preparation method, and excellent anti-scaling performance

Active Publication Date: 2021-11-26
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

The ambient humidity is low, the dust is large, and the fins are easy to absorb dust particles, resulting in an increase in thermal resistance and a decrease in heat transfer coefficient, thereby reducing the efficiency of the air-cooled condenser
During the condensation process of the air cooler, due to the high concentration of dust in the air, the air medium in the channel of the finned tube carries dust particles, which are easily adsorbed inside the aluminum finned tube, causing channel blockage
Dust has a great impact on the heat dissipation efficiency of finned tubes, and it needs to be washed with high-pressure water, which is a great waste of water resources
[0003] In the prior art research on anti-scaling and anti-ashing of air coolers, the research on coating anti-scaling and surface modification is somewhat lacking, and due to the special structure of finned tubes, it is difficult to obtain the performance of steel-based aluminum finned tube bundles of air coolers. Excellent nanocomposite coating, so far, there is no literature report or practical application of Ni-P composite coating applied to air cooler finned tube bundles, and research on its inhibitory effect on fouling

Method used

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  • Design and preparation method of anti-fouling nano-composite coating for steel-based aluminum fin tube bundles of air coolers
  • Design and preparation method of anti-fouling nano-composite coating for steel-based aluminum fin tube bundles of air coolers
  • Design and preparation method of anti-fouling nano-composite coating for steel-based aluminum fin tube bundles of air coolers

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Experimental program
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Effect test

specific Embodiment

[0085] refer to figure 2 , the steel-based aluminum finned tube bundle of the air cooler is composed of serpentine coil 1, Ni-P bottom layer 2, Ni-P-PTFE nanoparticle surface layer 3 or Ni-P-SiO 2 Nano particle surface layer, carbon steel base pipe 4 composition.

[0086] refer to figure 1 and figure 2 , Preparation of anti-fouling nanocomposite coatings on steel-based aluminum finned tube bundles of air coolers

[0087] Step 1: Select an ultrasonic instrument with an ultrasonic frequency of 40K HZ and a power of 160W to clean the steel-based aluminum finned tube bundle sample for 1 to 2 hours, and extend the time appropriately until the surface rust, floating ash and other attachments are completely removed , After cleaning, rinse with water and dry with cold air for later use.

[0088] Step 2: Alkali washing and degreasing. Alkali washing is performed on the steel-based aluminum finned tube bundles of the air cooler in a constant temperature water bath at 60-75°C to re...

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Abstract

The invention relates to a method for designing and preparing an anti-scaling nano-composite coating for steel-based aluminum-finned tube bundles of an air cooler. The preparation of anti-scaling nano-composite coating for aluminum-based finned tube bundles is scientific and reasonable, with strong applicability and good effect. The method of the invention can prolong the service life of the steel-based aluminum finned tube bundle, reduce its corrosion and aging rate, save costs, eliminate the need for multiple maintenance and cleaning, prolong the cleaning period, and improve the efficiency of the air cooler.

Description

technical field [0001] The invention relates to a steel-based aluminum finned tube bundle of an air cooler, in particular to a design and preparation method for an anti-scaling nano-composite coating of the steel-based aluminum finned tube bundle of an air cooler. Background technique [0002] Air-cooled condensers are mostly used in dry and water-scarce areas. The ambient humidity is low, the dust is large, and the fins are easy to absorb dust particles, resulting in an increase in thermal resistance and a decrease in heat transfer coefficient, thereby reducing the efficiency of the air-cooled condenser. During the condensation process of the air cooler, due to the high concentration of dust in the air, the air medium in the channel of the finned tube carries dust particles, which are easily adsorbed inside the aluminum finned tube, causing channel blockage. Dust has a great impact on the heat dissipation efficiency of finned tubes, and it needs to be washed away with high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20C23C18/36C23C18/16C23C18/18
CPCC23C18/1662C23C18/1844C23C18/1848C23C18/36
Inventor 赵波王晓旭王志慧范思远吕昌旗曹生现王恭姚显双孙天一
Owner NORTHEAST DIANLI UNIVERSITY
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