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Microchannel heat exchanger

A micro-channel heat exchanger and micro-channel technology, which is applied in heat exchange equipment, evaporator/condenser, lighting and heating equipment, etc., can solve the problems such as the problem of water drainage of the evaporator and the reduction of heat exchange efficiency. , to solve the drainage problem, improve the heat exchange efficiency, and optimize the design.

Active Publication Date: 2019-08-06
ZHEJIANG DUNAN MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to structural limitations, the microchannel heat exchanger with a common type of heat dissipation structure did not solve the drainage problem of the evaporator. Reduced heat transfer efficiency due to fin area

Method used

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  • Microchannel heat exchanger
  • Microchannel heat exchanger
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Embodiment Construction

[0027] The following describes the embodiments of the present invention in detail, but the present invention can be implemented in a variety of different ways defined and covered by the claims.

[0028] Please refer to Figure 1 to Figure 10 As shown, according to the embodiment of the present invention, the micro-channel heat exchanger includes a plurality of flat tubes (not shown in the figure) for conveying refrigerant, and a first heat dissipation portion 20 and a first heat dissipation portion 20 adjacent to the flat tubes. Two heat dissipation parts 30, the first heat dissipation part 20 has a plurality of wave-shaped micro-channel heat dissipation fins 23, the second heat dissipation part 30 includes a plurality of plug-in fins, each of the plug-in fins The sheet has a flat tube groove for placing a flat tube, a part of the flat tube is embedded in the flat tube groove, and the other part of the flat tube is arranged between two adjacent microchannel heat dissipation fins 2...

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Abstract

A microchannel heat exchanger of the invention adopts two structural heat dissipation parts at the same time in heat dissipation, can solve a drainage problem when a microchannel is used as an evaporator, simultaneously enables the heat exchange efficiency to be improved, and enables the cost to be reduced. In addition, through optimized design of a refrigeration system, a scheme of the microchannel heat exchanger can also balance the problem of refrigerant charging capacity balance during cooling and heating of a refrigerant.

Description

Technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a microchannel heat exchanger. Background technique [0002] The micro-channel heat exchanger is derived from the cooling of high-density electronic devices in the 1980s and the heat transfer problems of micro-electromechanical systems that appeared in the 1990s. In 1981, Tuckerman and Pease proposed the concept of micro-channel heat sinks; in 1985, Swife, Migliori and Wheatley have developed a microchannel heat exchanger for heat exchange between two fluids. [0003] With the development of micro-manufacturing technology, people have been able to manufacture micro-sized heat exchangers composed of channels with a hydraulic diameter of 10-1000 μm. At present, conventional micro-channel condensers used in single-cooling units have many advantages compared with traditional finned tube heat exchangers, such as higher heat exchange efficiency, lower wind resistance, lower refrigera...

Claims

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Application Information

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IPC IPC(8): F25B39/00F28F17/00
CPCF25B39/00F28F17/005
Inventor 吴青昊江俊党聪聪
Owner ZHEJIANG DUNAN MASCH CO LTD
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