Micropass board

Abstract

The invention relates to the field of heat exchange, in particular to water, oil, CO 2 A device for heat exchange between similar or non-homogeneous media such as air, refrigerant, etc. The micro-pass plate is composed of an inner medium flow channel and two outer heat exchange surfaces. The inner medium flow channel is composed of a distribution channel, a collection channel and a network of intersecting micro heat exchange channels. The inlet end of the micro heat exchange channel is connected with the distribution channel, and the outlet end is connected with the collection channel. The micro-pass plate is compositely formed by two plates, and the periphery of the two plates and the raised joint in the middle are tightly combined to form a whole. The network-shaped interlaced micro-channels and numerous recombination points evenly distributed on the entire plate surface make the medium in the flow channel form turbulent and swirling flow, and exchange heat with the outside through the thin plate quickly and efficiently. The micro-pass plate has many advantages such as ultra-thin, good mass production processability, high heat exchange efficiency, small volume, and low cost.

Description

technical field [0001] The invention relates to the field of heat exchange, in particular to water, oil, CO 2 A device for heat exchange between similar and non-homogeneous media such as air, refrigerant, etc. Background technique [0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in the field of home appliances, or in chemical, petroleum, power, food and many other industrial productions, and can be used as heaters, coolers, condensers, evaporators and reboilers. [0003] In my country, indoor heating devices in winter in the north have become a standard configuration for families, and indoor heating in winter in the south has also received increasing attention and gradually entered thousands of households. With the improvement of national environmental protection requirements, coal boilers that provide 60-90°C circulating hot water will be required to...

AI Technical Summary

Problems solved by technology

[0006] At present, radiator heat exchangers generally have one or more of the following problems. 1) Metal parts with thicker materials are used, which are heavy and costly

2) There are many welding processes or complex assembly processes, the manufacturability is not good, and the subsequent surface treatment affects the heat transfer effect

3) The distribution of the heat exchange medium is uneven, the diameter of some flow channels is large, there is temperature stratification, and the heat exchange efficiency is low

4) It is suitable for heat exchange at high water temperature of 60-90 degrees, but the heating effect is poor for low water temperature of 40-60 degrees

5) There is a large amount of water stored in the heat exchanger, which increases the total weight of the radiator, reduces the response speed of heat exchange, and causes heat loss

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