Regular-triangular-arrayed vortex array heat-transfer device

Abstract

The invention relates to a regular-triangular-arrayed vortex array heat-transfer device. The regular-triangular-arrayed vortexes array heat-transfer device comprises a cylindrical shell and a heat-transfer core body; the heat transfer core body comprises Y-shaped heat-transfer vortex arrays arrayed along the vortexes; a heat-transfer vortex array formed by rotate-right or rotate-left V-shaped heat-transfer vortexes is arranged in each sector area formed by two Y-shaped adjacent arms; the rotation direction of the Y-shaped heat-transfer vortexes arrays is opposite to the rotation direction of adjacent V-shaped heat-transfer vortexes arrays, and the rotation directions of the heat-transfer vortexes in two adjacent rows of V-shaped heat-transfer vortex arrays are opposite. The regular-triangular-arrayed vortex array heat-transfer device has the advantages that the flow directions in a channel at the tangent position of the adjacent heat-transfer vortex arrays is the same, improving of the heat-transfer effect is facilitated, the flow resistance is reduced, and the cost is nearly increased; the regular-triangular-arrayed vortex array heat-transfer device can be used in the occasions of a twisted ellipse tube heat exchanger, nuclear reactor core and the like.

Description

technical field [0001] The invention relates to a vortex array heat exchange device, in particular to a paired vortex row array heat exchange device arranged in an equilateral triangle. 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 exchange devices commonly used at present are all parallel vortex schemes, that is, the vortex directions of all heat transfer vortexes are the same, and the direction of rotation is the same for the fluid separated in the tube, but for the fluid surrounding the tube, Since the flow direction of the fluid in the helical channel at the tangen...

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Problems solved by technology

[0003] The heat transfer vortex array heat exchange devices commonly used at present are all parallel vortex schemes, that is, the vortex directions of all heat transfer vortexes are the same, and the direction of rotation is the same for the fluid separated in the tube, but for the fluid surrounding the tube, Since the flow direction of the fluid in the helical channel at the tangent point of two adjacent heat transfer vortices 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 cause heat transfer. Decrease in coefficient or increase in flow resistance

Although there are applications of reverse scrolls in mechanical occasions such as twin-screw compressors or oil pumps, it is a pity that in the field of heat transfer, there has not been any relevant research on the role of the direction of rotation of the heat transfer scroll in the heat transfer scroll array at home and abroad. research or make effective use of

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