Plate-fin crotch structure heat exchange device for enhancing heat transfer

Abstract

The invention discloses a plate-fin crotch structure heat exchange device for enhancing heat transfer. The plate-fin crotch structure heat exchange device comprises two end sockets, a partition board, flow deflectors and fins. Fluid enters the plate-fin crotch structure heat exchange device through the flow deflector on one side. After being subjected to heat exchange with the fins, the fluid flows out from the other side. The plate-fin crotch structure heat exchange device is characterized in that the fins are crotch-shaped fins, wherein each crotch-shaped fin is composed of a trunk part and a crotch part, and each crotch-shaped fin comprises at least two crotches which are evenly distributed on two side faces of a trunk. The crotches are arranged in a staggered mode on two sides of each trunk in the flowing direction of the fluid. The open direction of each crotch-shaped fin is consistent with the flowing direction of the fluid. The range of an open angle is 10-30 degrees. By means of the plate-fin crotch structure heat exchange device for enhancing the heat transfer, the problem that the temperatures of the fluid in different flow paths of a heat exchanger are not uniform is solved; the turbulence performance of the fluid in the heat exchanger is improved, a thermal boundary layer of the fluid is damaged, the flowing directions of the fluid in the different flow paths are changed, and therefore the heat exchange efficiency is improved; due to a crotch-shaped fin structure of the plate-fin heat exchanger, the thermal boundary layer of the fluid is damaged, and the heat transfer effect of the heat exchanger is enhanced.

Description

technical field [0001] The invention relates to a heat exchange device, in particular to a plate-fin type tree branch structure heat exchange device for enhancing heat transfer. Background technique [0002] The plate-fin heat exchange device is the key equipment in the process of enhancing heat transfer. Its advantages mainly include: (1) High heat transfer efficiency: the partition plate and fin structure in the heat exchanger are usually relatively thin, and both have good heat conduction The performance enables the plate-fin heat exchanger to form a unique secondary heat transfer phenomenon, which improves heat transfer efficiency; (2) Large heat transfer coefficient: the disturbance of the fin structure to the fluid continuously destroys the thermal boundary layer of the fluid, promoting (3) Compact structure: the secondary heat transfer surface of the fin increases the heat transfer area; (4) Lightweight: the plate-fin heat exchanger has many structures such as fins, p...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a plate-fin type branch structure heat exchange device with enhanced heat transfer, which overcomes the inability to completely exchange heat caused by the excessively fast fluid flow in the existing fin structure. The problem of poor heat transfer between fluids in different flow channels

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