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Anticorrosion and high temperature resistant composite copper alloy plate for heat exchanger

A technology of copper alloy plate and high temperature resistance, which is applied in the direction of metal layered products, chemical instruments and methods, layered products, etc., can solve the problem of reducing production efficiency, and the requirements for anti-corrosion performance of heat exchangers are also getting higher and higher, heat transfer The problem of large damage to the device can be solved, and the effects of prolonging the service life, excellent film formation flatness, and improving passivation protection can be achieved.

Active Publication Date: 2018-11-16
ANHUI PROPELLENT HEAT TRANSFER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The efficiency of the heat exchanger determines that the heat exchanger needs excellent temperature resistance, and now many industrial fluids have certain corrosion and pollution, which will cause great damage to the heat exchanger, require frequent equipment or maintenance, and reduce production efficiency. Therefore, The requirements for the anti-corrosion performance of heat exchangers are also getting higher and higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An anti-corrosion and high-temperature-resistant composite copper alloy plate for heat exchangers, including a copper alloy substrate and a rare earth protective layer, the copper alloy substrate is polycrystalline mullite short fiber modified copper alloy, and the rare earth protective layer is cerium-chromium- In the rectorite composite material, the copper alloy substrate and the rare earth protective layer are composited through a high-temperature adhesive.

[0018] Among them, the copper alloy substrate is made by casting infiltration process, and the process steps are as follows: 1) Dissolving water glass in deionized water, then adding polycrystalline mullite short fibers with an aspect ratio of 135, sodium chloride, and ammonium chloride Among them, ultrasonic dispersion is performed for 10 minutes to obtain a prefabricated solution, which is sprayed on the surface of the injection mold with a spray thickness of 0.3-0.4mm, and dried for later use; 2) Put the copp...

Embodiment 2

[0021] An anti-corrosion and high-temperature-resistant composite copper alloy plate for heat exchangers, including a copper alloy substrate and a rare earth protective layer, the copper alloy substrate is polycrystalline mullite short fiber modified copper alloy, and the rare earth protective layer is cerium-chromium- In the rectorite composite material, the copper alloy substrate and the rare earth protective layer are composited through a high-temperature adhesive.

[0022] Among them, the copper alloy substrate is made by casting infiltration process, and the process steps are as follows: 1) Dissolving water glass in deionized water, then adding polycrystalline mullite short fibers with an aspect ratio of 140, sodium chloride, and ammonium chloride Among them, ultrasonic dispersion for 10 minutes to obtain the prefabricated liquid, spray the prefabricated liquid on the surface of the injection mold with a spray thickness of 0.3-0.4mm, and dry it for later use; 2) Put the co...

Embodiment 3

[0025] An anti-corrosion and high-temperature-resistant composite copper alloy plate for heat exchangers, including a copper alloy substrate and a rare earth protective layer, the copper alloy substrate is polycrystalline mullite short fiber modified copper alloy, and the rare earth protective layer is cerium-chromium- In the rectorite composite material, the copper alloy substrate and the rare earth protective layer are composited through a high-temperature adhesive.

[0026] Among them, the copper alloy substrate is made by cast infiltration process, and the process steps are as follows: 1) Dissolving water glass in deionized water, then adding polycrystalline mullite short fibers with an aspect ratio of 137, sodium chloride, and ammonium chloride Among them, the prefabricated solution was obtained by ultrasonic dispersion for 5 minutes, and the prefabricated solution was sprayed on the surface of the injection mold with a spray thickness of 0.3-0.4mm, and dried for later use...

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Abstract

The invention presents an anti-corrosive and high-temperature-resisting composite copper alloy plate for a heat exchanger. The alloy plate comprises a copper alloy substrate and a rare-earth protecting layer; the copper alloy substrate is polycrystal mullite short fiber modified copper alloy; the rare-earth protecting layer is cerium-chrome-rectorite composite material; the copper alloy substrate is compounded with the rare-earth protecting layer through high-temperature binding agent; the composite copper alloy plate prepared by the invention has good high-temperature resistance, corrosive resistance, and acid-alkali resistance; moreover, the mechanical strength and the heat conducting performance are significantly increased; the working efficiency and the service life of the heat exchanger are improved.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to an anti-corrosion and high-temperature resistant composite copper alloy plate for heat exchangers. Background technique [0002] The heat exchanger is a device that transfers part of the heat of the hot fluid to the cold fluid, so that the temperature of the fluid reaches the index specified in the process, also known as a heat exchanger. Heat exchangers are indispensable equipment to realize heat exchange and transfer in the chemical production process. In petroleum, chemical, light industry, pharmaceutical, energy and other industrial production, they are often used to heat low-temperature fluids or cool high-temperature fluids. Vaporize into steam or condense steam into liquid, so that the fluid temperature reaches the index specified in the process, so as to meet the needs of process conditions and improve energy utilization. The efficiency of the heat exchanger dete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/00B32B15/04B32B15/20B32B33/00B22D23/04C22C47/12C22C49/02C22C49/14C22C101/08
CPCB22D23/04B32B9/00B32B15/04B32B15/20B32B33/00B32B2307/302B32B2307/306B32B2307/558B32B2307/714C22C47/12C22C49/02C22C49/14
Inventor 张凌霞
Owner ANHUI PROPELLENT HEAT TRANSFER TECH CO LTD
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