A flow channel turbulence structure of a heat exchanger

Abstract

The utility model discloses a heat exchanger technical field's flow channel turbulence structure of heat exchanger. The structure includes the turbulence protruding of setting in the flow channel, and the turbulence protruding is equipped with the inclined plane, and the both ends of inclined plane are transverse to the fluid flow direction and have height difference, and one end of inclined plane is the apex of turbulence protruding, and the other end of inclined plane is close to the inner wall of flow channel, and the inclined plane is from the apex end to the end close to the inner wall of flow channel and is inclined, and the acute angle is formed between the inclined plane and the plane parallel to the fluid flow direction, and the inclined plane is used for guiding fluid to produce the spiral vortex that advances to the flow direction. The utility model has the advantages of reducing resistance and improving the heat dissipation performance.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a flow channel turbulence structure for a heat exchanger. Background Technology

[0002] The heat transfer unit of a heat exchanger is a heat pipe or a heat sink. To improve heat exchange efficiency, protrusions are installed inside the heat pipe or in the flow channels between the heat sink fins, such as... Figure 1-2 As shown, protrusion 1A is disposed within flow channel 2A; for example, the prior art discloses a plate heat exchanger, with authorization announcement number CN 205561602 U and authorization announcement date of 2016.09.07; by causing fluid flow turbulence through protrusions, the heat dissipation effect is increased. Although the heat exchange efficiency is improved to a certain extent, when the fluid flows through the protrusion, a backward vortex will occur, resulting in high fluid resistance and affecting heat dissipation performance. Utility Model Content

[0003] The purpose of this invention is to provide a flow channel turbulence structure for a heat exchanger that reduces resistance and improves heat dissipation performance.

[0004] To achieve the above-mentioned objectives, the flow channel turbulence structure of the heat exchanger of this utility model adopts the following technical solution:

[0005] A flow channel turbulence structure for a heat exchanger includes a turbulence protrusion disposed within the flow channel. The turbulence protrusion has an inclined surface, with its two ends transverse to the fluid flow direction and having a height difference. One end of the inclined surface is the apex of the turbulence protrusion, and the other end of the inclined surface is close to the inner wall of the flow channel. The inclined surface is inclined from the apex end to the end close to the inner wall of the flow channel. The inclined surface forms an acute angle with a plane parallel to the fluid flow direction. The inclined surface is used to guide the fluid to generate a spiral vortex that moves forward in the flow direction.

[0006] Preferably, the acute angle is 30 degrees.

[0007] Preferably, the turbulence protrusions are arranged on both sides of the flow channel in multiple staggered configurations. The turbulence protrusion located on one side of the flow channel is the first turbulence protrusion, and the turbulence protrusion located on the other side of the flow channel is the second turbulence protrusion. The first and second turbulence protrusions are staggered to prevent mutual interference between the advancing spiral vortices, thereby improving the heat dissipation effect.

[0008] Preferably, the inclined surface of the first turbulence protrusion is parallel to the inclined surface of the second turbulence protrusion.

[0009] Preferably, the flow channel is a fluid channel inside the heat exchanger heat dissipation tube, and the turbulence protrusion is provided on the inner wall of the heat dissipation tube.

[0010] Preferably, the flow channel is a fluid channel between heat exchanger fins, and the turbulence protrusions are provided on the heat exchanger fins.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention creates turbulent flow by setting up turbulent protrusions. The turbulent protrusions have inclined surfaces with their two ends transverse to the direction of fluid flow and having a height difference. The inclined surfaces slope from the top end toward the end near the inner wall of the flow channel, thereby guiding the fluid to generate a spiral vortex that moves in the direction of flow, reducing the fluid's flow resistance and improving heat dissipation performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the background technology;

[0014] Figure 2 for Figure 1 Side view sectional view;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model;

[0016] Figure 4 for Figure 3 Side view sectional view;

[0017] Figure 5 This is a schematic diagram of the angle of the inclined surface;

[0018] Figure 6 for Figure 3 A schematic diagram of the fluid flow direction in the diagram;

[0019] Figure 7 for Figure 4 A schematic diagram of fluid flow direction.

[0020] in, Figure 1-2 In the middle, 1A is a protrusion, and 2A is a flow channel;

[0021] Figure 3-7 In the middle, 1 is a turbulence protrusion, 101 is the first turbulence protrusion, 102 is the second turbulence protrusion, 2 is a flow channel, 3 is an inclined surface, and 301 is the apex. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and not for limiting the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0023] like Figure 3-7As shown, a flow channel turbulence structure for a heat exchanger includes a turbulence protrusion 1 disposed within a flow channel 2. The flow channel 2 is a fluid passage inside the heat exchanger's heat dissipation tubes, and the turbulence protrusion 1 is disposed on the inner wall of the heat dissipation tubes. Alternatively, the flow channel 2 is a fluid passage between heat dissipation plates of the heat exchanger, and the turbulence protrusion 1 is disposed on the heat dissipation plates. The turbulence protrusion 1 has an inclined surface 3, with its two ends transverse to the fluid flow direction and having a height difference. One end of the inclined surface 3 is the apex 301 of the turbulence protrusion 1, and the other end of the inclined surface 3 is close to the inner wall of the flow channel 2. The inclined surface 3 extends from the apex towards the inner wall of the flow channel. The inner wall is inclined; the inclined surface 3 forms an acute angle α with the plane parallel to the fluid flow direction, preferably 30 degrees. The inclined surface 3 is used to guide the fluid to generate a spiral vortex that moves forward in the flow direction. Multiple turbulence protrusions 1 are arranged on both sides of the flow channel 2 at intervals. The turbulence protrusion 1 located on one side of the flow channel 2 is the first turbulence protrusion 101, and the turbulence protrusion 1 located on the other side of the flow channel 2 is the second turbulence protrusion 102. The first turbulence protrusion 101 and the second turbulence protrusion 102 are staggered. The inclined surface 3 of the first turbulence protrusion 101 is parallel to the inclined surface 3 of the second turbulence protrusion 102.

[0024] The specific working process and principle of this utility model: Fluid is turbulently generated by the turbulence protrusion 1. Simultaneously, the two ends of the inclined surface 3 are transverse to the fluid flow direction and have a height difference. The inclined surface 3 is inclined from the apex end towards the end near the inner wall of the flow channel, thereby guiding the fluid to generate a spiral vortex that moves forward in the flow direction. Figure 6-7 As shown in the figure, the arrow indicates the direction of fluid flow; and the turbulence protrusion 1 is set on both sides of the flow channel 2, which is divided into the first turbulence protrusion 101 and the second turbulence protrusion 102, and is staggered so that they will not interfere with each other after the fluid generates a spiral vortex, thereby further reducing the flow resistance of the fluid and improving the heat dissipation performance.

[0025] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A flow channel turbulence structure for a heat exchanger, characterized in that: The device includes a turbulence protrusion disposed within the flow channel. The turbulence protrusion has an inclined surface, with its two ends transverse to the fluid flow direction and having a height difference. One end of the inclined surface is the apex of the turbulence protrusion, and the other end of the inclined surface is close to the inner wall of the flow channel. The inclined surface is inclined from the apex end to the end close to the inner wall of the flow channel. The inclined surface forms an acute angle with a plane parallel to the fluid flow direction. The inclined surface is used to guide the fluid to generate a spiral vortex that moves forward in the flow direction.

2. The flow channel turbulence structure of the heat exchanger according to claim 1, characterized in that: The acute angle is 30 degrees.

3. The flow channel turbulence structure of the heat exchanger according to claim 1, characterized in that: The turbulence protrusions are arranged on both sides of the flow channel and are spaced out in multiples. The turbulence protrusion located on one side of the flow channel is the first turbulence protrusion, and the turbulence protrusion located on the other side of the flow channel is the second turbulence protrusion. The first turbulence protrusion and the second turbulence protrusion are staggered.

4. The flow channel turbulence structure of the heat exchanger according to claim 3, characterized in that: The inclined surface of the first turbulence protrusion is parallel to the inclined surface of the second turbulence protrusion.

5. The flow channel turbulence structure of the heat exchanger according to claim 1, characterized in that: The flow channel is the fluid channel inside the heat exchanger's heat dissipation tube, and the turbulence protrusions are set on the inner wall of the heat dissipation tube.

6. The flow channel turbulence structure of the heat exchanger according to claim 1, characterized in that: The flow channel is a fluid channel between the heat exchanger fins, and the turbulence protrusions are provided on the heat exchanger fins.

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