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Microchannel radiator for air conditioner

A radiator, micro-channel technology, applied in indirect heat exchangers, heat exchanger types, heat exchange equipment, etc., can solve the problem of no natural cooling porous structure, air can not flow, etc.

Inactive Publication Date: 2019-11-19
SHANDONG XITAI TIANGONG ENERGY SAVING TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Metal-based composite coatings are also a commonly used coating for radiator fins. Usually, high thermal conductivity fillers are added to the metal substrate, such as Al / SiC, Al / CNTs, W / graphene, etc., but these added thermal conductivity coatings have High heat transfer, but added to the metal base does not form a porous structure for natural cooling, and air cannot flow

Method used

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  • Microchannel radiator for air conditioner
  • Microchannel radiator for air conditioner
  • Microchannel radiator for air conditioner

Examples

Experimental program
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preparation example Construction

[0034] The preparation method of heat-dissipating coating, it comprises:

[0035] The first step is the preparation of graphene by electrical treatment. Fill the graphene powder in the hollow graphene rod, use the graphene rod as the cathode and anode, assemble it into the reaction chamber of the arc equipment with a fixture, and remove the air in the arc discharge reaction chamber , filled with a mixture of high-purity helium and hydrogen, connected to a DC power supply to discharge, and obtained electrically-treated graphene;

[0036] In the second step, the preparation of silicon oxide nanofiber spinning solution, tetraethyl silicate is dissolved in the mixed solution formed by hydrochloric acid solution and ethanol solution, and polyvinylpyrrolidone is dissolved in isopropanol and N,N-dimethylformaldehyde In the mixed solution formed by amides, mix the two spinning solutions evenly to form a homogeneous solution;

[0037] The third step, the preparation of electrically tr...

Embodiment 1

[0047] Embodiment 1 Preparation of electrically treated graphene

[0048] 1g of graphene powder is filled in a hollow graphene rod with a diameter of 6 mm and a length of 15 cm. The graphene rod is used as the negative and positive poles, assembled into the reaction chamber of the discharge device with a clamp, and after the air in the discharge reaction chamber is removed, it is filled with The mixed gas of high-purity helium and hydrogen, the pressure is 500Torr, the flow rate of hydrogen and helium is 400sccm, and the DC power supply is connected to discharge at a current of 150A to obtain graphene.

Embodiment 2

[0049] Example 2 Preparation of electro-treated graphene / silicon oxide nanofibers

[0050] 1.5g tetraethyl silicate is dissolved in the mixed solution that 0.6g hydrochloric acid solution and 0.4g ethanol solution form, and 1.1g polyvinylpyrrolidone is dissolved in 4.9g isopropanol and 8.2gN, N-dimethylformamide forms In the mixed solution, the two spinning solutions are mixed uniformly to form a homogeneous solution; the electro-treated graphene prepared in Example 1 is added to the prepared electro-treated graphene / silicon oxide nanofiber material according to the weight ratio of 15% of the formed electro-treated graphene / silicon oxide nanofiber material. In a homogeneous solution, stir at a temperature of 60°C for 12 hours, put it into an electrospinning device, and conduct electrospinning under the conditions of a voltage of 15kV and a receiving distance of about 10cm. After 9 hours, the product is collected, and then the product is placed in a vacuum oven Dry in medium fo...

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Abstract

The invention belongs to the technology field of household air conditioning heat dissipation and particularly relates to a microchannel radiator for an air conditioner. According to the microchannel radiator for the air conditioner, the surfaces of fin pieces of the radiator are coated with a graphene heat dissipation coating, the graphene heat dissipation coating comprises electrically-treated graphene, a silicon oxide nanofiber material and nano-copper particles, and the nano-copper particles are deposited in a composite material formed by the electrically-treated graphene and silicon oxidenanofiber through a way of electrodeposition. By means of the microchannel radiator for the air conditioner, under the premise of ensuring the three-dimensional structure stability, the heat conduction effect is maximized, and meanwhile, the mechanical stability can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of heat dissipation of household air conditioners, and in particular relates to a microchannel radiator for air conditioners. Background technique [0002] With the increase of frequency conversion air conditioner function and miniaturization design, the heat generated by the corresponding electronic components will also increase. If the heat emitted by the heating electronic components cannot be dissipated in time, it will cause heat accumulation, which will lead to the failure of each component. The reliability of electronic components is greatly reduced when the temperature exceeds the temperature limit that they can withstand. [0003] In the research of heat sinks, people regard the development of materials with high thermal conductivity and good heat dissipation effect as the focus of research. Polymer composite heat-dissipating coatings are currently researched high-performance materials mainly used ...

Claims

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Application Information

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IPC IPC(8): F28D7/00F28F1/10C09D1/00C09D7/61C25D3/38B82Y30/00
CPCB82Y30/00C09D1/00C09D7/61C09D7/70C25D3/38F28D7/0025F28F1/10
Inventor 陈威周明新
Owner SHANDONG XITAI TIANGONG ENERGY SAVING TECH LTD
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