Microchannel heat exchange plate with V-shaped fractal structures and preparation method of microchannel heat exchange plate

A fractal structure and microchannel technology, applied in heat exchange equipment, lighting and heating equipment, laminated components, etc., can solve the problems of single structure of heat exchange plate and small specific surface area, so as to increase the number of vaporization cores and enhance the vaporization process , The effect of improving the heat exchange capacity

Active Publication Date: 2013-08-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The primary purpose of the present invention is to propose a micro-channel heat exchange plate with a V-shaped fractal structure with excellent enhanced heat transfer performance for the existing heat exchange plate with single structure and small specific surface area.

Method used

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  • Microchannel heat exchange plate with V-shaped fractal structures and preparation method of microchannel heat exchange plate
  • Microchannel heat exchange plate with V-shaped fractal structures and preparation method of microchannel heat exchange plate
  • Microchannel heat exchange plate with V-shaped fractal structures and preparation method of microchannel heat exchange plate

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Experimental program
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Effect test

Embodiment 1

[0032] Taking red copper as the sheet material for processing the heat exchange plate, and the second-order V-shaped fractal microchannel as an example, the process is as follows:

[0033] (1) Preliminary processing of raw materials. First, remove the burr from the 50×100×3mm sheet, then fix it on the fixture, install it on the BC6063B planer vise, and use the dial indicator to level the surface of the sheet.

[0034] (2) Tool clamping. The selected multi-stage composite fractal plow cutting tool is installed on the tool holder, and the verticality corrector is used to ensure that the angle between the tool and the surface of the sheet to be processed is 90°. The material of the tool is high-speed steel, and the shape of the cutting edge is controlled by the trajectory of the wire-cut molybdenum wire, so that it has a 3-order V-shaped fractal structure, such as figure 1 , figure 2 shown. Taking the two-stage composite plow cutting tool as an example, the depth of the firs...

Embodiment 2

[0038] Taking red copper as the sheet material for processing the heat exchange plate, and the second-order V-shaped fractal microchannel as an example, the process is as follows:

[0039] (1) Preliminary processing of raw materials. First remove the burrs from the 50×100×15mm sheet, then install it on the BC6063B planer, use the planer to plan the surface to be processed, turn the sheet 180° after completion, and continue to process the other side with the planer , to ensure the parallelism and flatness of the two planes.

[0040] (2) Tool clamping. The selected multi-stage composite fractal plow cutting tool is installed on the tool holder, and the verticality corrector is used to ensure that the angle between the tool and the surface of the sheet to be processed is 90°. The cutting tool material is high-speed steel, and the cutting edge shape is controlled by wire cutting molybdenum wire track 1, so that it has a V-shaped fractal structure, such as figure 1 , figure 2A...

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Abstract

The invention discloses a microchannel heat exchange plate with V-shaped fractal structures and a preparation method of the microchannel heat exchange plate. A microchannel is processed on a single surface of a heat exchange plate, three stages of V-shaped fractal structures are arranged on the microchannel, and two second-stage V-shaped microchannels are respectively uniformly distributed on two side walls of a first-stage V-shaped microchannel. Two third-stage V-shaped microchannels are respectively uniformly distributed on two side walls of each second-stage V-shaped microchannel. A plate to be processed is flattened by a planer tool, and then is subject to plough cutting by the aid of a multistage composite fractal plough cutter, by the aid of movement of a planer worktable and a toolrest, and the pitches and the depths of the fractal microchannels are controlled, so that the microchannel with the V-shaped fractal structures is formed. The heat exchange plate has large specific surface area, nucleus of boiling can be greatly increased, vaporization in an evaporation boiling process is realized advantageously, so that the heat exchange plate has excellent boiling strengthening heat exchange ability, processing efficiency is greatly enhanced, processing technology is simple, and cost is low.

Description

technical field [0001] The invention relates to a heat exchange plate, which is mainly used in the field of enhanced heat transfer, and specifically refers to a microchannel heat exchange plate with a V-shaped fractal structure and a preparation method thereof. Background technique [0002] Heat exchange devices are essential equipment in industrial processes and are widely used in chemical industry, machinery, microelectronics and other fields. Especially in today's rapid development in the field of microelectronics, heat dissipation has become the main problem affecting product performance and life. With the improvement of product integration, the complexity of the system, the precision and miniaturization of processing and manufacturing, the problem of heat dissipation is becoming more and more serious. Taking high-power LED as an example, the performance of LED is closely related to its working temperature. As the temperature rises, the luminous efficiency gradually dec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F3/04B23P15/26
Inventor 汤勇李宗涛李辉丁鑫锐简漳智
Owner SOUTH CHINA UNIV OF TECH
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