Heat exchanger with vortex pair type squarely arranged heat transferring vortex array

Abstract

The invention discloses a heat exchanger with a vortex pair type squarely arranged heat transferring vortex array. The heat exchanger with the vortex pair type squarely arranged heat transferring vortex array comprises a housing 1, wherein a heat transferring core 2 is arranged inside the housing; the heat transferring core comprises cylindrical heat transferring vortexes arranged according to a square array; the outlines of the adjacent heat transferring vortexes are tangent; the sizes, the spiral leads and spiral phases of the heat transferring vortexes are identical; the heat transferring vortexes comprise right-handed rotating vortexes 2-1 and left-handed rotating vortexes 2-2; the spiral rotating directions of any two adjacent heat transferring vortexes are opposite. The heat exchanger with the vortex pair type squarely arranged heat transferring vortex array has the advantages of enhancing the heat transfer effect, reducing the flow resistance and barely increasing the cost as the flow directions of the vortex pair type adjacent heat transferring vortexes are consistent at the tangent position to form resultant force, and can be applied to occasions such as a squarely arranged distorted elliptical tube heat exchanger.

Description

technical field [0001] The invention relates to a heat transfer vortex array heat exchanger, in particular to a paired vortex square heat transfer vortex array heat exchanger. Background technique [0002] Vortex flow is a phenomenon that exists in nature. Because its main flow basically does not change direction, the flow resistance is relatively small. There are many examples of the application of spiral vortex in the field of enhanced heat transfer technology, such as twisted elliptical tube heat exchangers, threaded grooved tube heat exchangers and spiral baffle heat exchangers. [0003] The heat transfer vortex array heat exchangers commonly used at present are all parallel vortex schemes, that is, the vortex directions of all heat transfer vortexes are the same. Although the direction of rotation is the same for the fluid separated in the tube, for the fluid surrounding the tube, the flow direction of the fluid in the helical channel at the tangent point of the two ad...

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Problems solved by technology

Although the direction of rotation is the same for the fluid separated in the tube, for the fluid surrounding the tube, the flow direction of the fluid in the helical channel at the tangent point of the two adjacent heat transfer vortexes arranged along the vortex is opposite. , the formed convective flow will inevitably lead to the loss of fluid flow momentum and energy, which will eventually lead to a decrease in heat transfer coefficient or an increase in flow resistance

Although there are applications of reverse vortices in mechanical occasions such as twin-screw compressors or oil pumps, unfortunately, in the field of heat transfer, there is no effect on the direction of rotation of the heat transfer vortex in the heat transfer vortex array heat exchanger at home and abroad. Questions have relevant research or make effective use of

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