Micro-channel heat exchanger with secondary fins
A technology of micro-channel heat exchanger and secondary fins, applied in the direction of heat exchanger type, indirect heat exchanger, heat exchange equipment, etc., can solve the problem of no heat exchanger form, etc., and achieve low manufacturing cost and sufficient heat exchange. Heat, the effect of increasing the total amount of heat exchange
Inactive Publication Date: 2021-11-30
BEIHANG UNIV
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Problems solved by technology
However, the existing microchannel heat exchangers all focus on microchannel-microchannel heat exchange, and there is no suitable heat exchanger form for microchannel-conventional size channel heat exchange
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[0031] figure 1 is a schematic cross-sectional structure diagram of a microchannel heat exchanger with secondary fins according to an embodiment of the present application. figure 2 yes figure 1 The enlarged schematic diagram of the top view section structure of the microchannel flow channel of the microchannel heat exchanger with secondary fins. image 3 is along figure 1 A schematic cross-sectional view taken along section line A-A in , showing a conventional size channel side section of a microchannel heat exchanger with secondary fins.
[0032] Such as figure 1 shown, see also image 3 , the application provides a micro-channel heat exchanger with secondary fins, formed in the flow channel, the flow channel has a flow channel outer wall 1, the micro-channel heat exchanger with secondary fins includes at least one heat exchange device unit. Each heat exchanger unit includes: a main fin base 2 , a main fin 5 , a secondary fin 6 , a cold end flow channel 3 and a hot en...
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The invention discloses a micro-channel heat exchanger with secondary fins, and relates to the field of heat exchanger structure design. Each heat exchanger unit comprises a main fin base, main fins, the secondary fins, a cold-end flow channel and hot-end flow channels, wherein the hot-end flow channels are channels with a conventional size, and the cold-end flow channel is a micro-channel. According to the micro-channel heat exchanger with the secondary fins, the secondary fins are used for heat exchange, the heat exchange area is greatly expanded under the condition that the weight is not increased too much, and sufficient heat exchange is achieved; and the separated multi-flow design is adopted, so that the total heat exchange amount and the heat exchange efficiency are improved on the premise of not affecting the compactness, therefore, the micro-channel heat exchanger with the secondary fins has the advantages of being compact in structure, suitable for small flows, large in heat exchange area and low in manufacturing cost, and the problem that existing micro-channel heat exchangers cannot exchange heat with fluids with conventional volume flows is solved.
Description
technical field [0001] The application relates to the field of structural design of heat exchangers, in particular to a microchannel heat exchanger with secondary fins. Background technique [0002] The development of heat exchanger structure design has become mature and standardized, and relevant manuals and design reference standards are available for reference in various industrial application scenarios. But on the other hand, in applications such as micro-electronic machinery (MEMS), aerospace, and precision medical equipment, the design of micro-channel heat exchangers at the millimeter, micron or even nanoscale scale is still a shortcoming in the industry. The ambiguity of the basic theory of heat transfer at the microscale and the lack of practical application examples make there is no unified and clear design method for microchannel heat exchangers. [0003] With the development of science and technology, the requirements for the compactness of heat exchangers are g...
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IPC IPC(8): F28D7/00F28F1/28
CPCF28D7/00F28F1/28
Inventor 李育隆夏余天逸周滢
Owner BEIHANG UNIV