A heat exchange tube, a heat exchanger and an air conditioner

Abstract

The present invention discloses a heat exchange tube, a heat exchanger and an air conditioner, relating to the technical field of heat exchange. Specifically, it includes: a tube body, and at least one flow disturbing component arranged on the inner wall of the tube body; the flow disturbing component includes: a first baffle plate connected to the inner side wall of the tube body for blocking the fluid in the tube body; a second baffle plate with one side connected to the first baffle plate; and a third baffle plate with one side connected to the first baffle plate and arranged opposite to the second baffle plate. The aim is to further improve the heat transfer efficiency in the heat exchange tube and at the same time reduce the loss of flow resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange, and particularly to a heat exchange tube, a heat exchanger and an air conditioner. Background Art

[0002] With the rapid development of human society, the demand for energy in today's society is increasing day by day. The refrigeration field with high total energy consumption and fast growth rate has become the focus of attention, and efficient heat exchangers are the research hotspots in this field.

[0003] One of the core components of an efficient heat exchanger is an efficient heat exchange tube. The processing techniques of the outer surfaces of conventional evaporation tubes and condensation tubes are different, and the formed outer teeth, channels or fins also have their own characteristics. However, the main means of enhancing heat transfer inside the tube are several specific spiral internal teeth. By adjusting the structural parameters of the spiral internal teeth, the degree of fluid disturbance inside the tube is increased and the boundary layer thickness is thinned, so as to achieve the purpose of enhancing heat transfer. However, the existing heat transfer enhancement effect is very limited. How to further improve the heat transfer efficiency inside the heat exchange tube while reducing the flow resistance loss has become a technical problem to be solved urgently. Summary of the Invention

[0004] The main object of the present invention is to provide a heat exchange tube, a heat exchanger and an air conditioner, aiming to further improve the heat transfer efficiency inside the heat exchange tube while reducing the flow resistance loss.

[0005] To achieve the above object, the present invention provides a heat exchange tube, including:

[0006] a tube body, and at least one flow disturbing assembly provided on the inner wall of the tube body;

[0007] The flow disturbing assembly includes:

[0008] a first baffle, connected to the inner side wall of the tube body, for blocking the fluid inside the tube body;

[0009] a second baffle, one side of which is connected to the first baffle; and

[0010] a third baffle, one side of which is connected to the first baffle and is disposed opposite to the second baffle.

[0011] In an embodiment of the present application, the side of the first baffle away from the second baffle is an arc surface.

[0012] In an embodiment of the present application, at least one protrusion is provided on the arc surface.

[0013] In an embodiment of the present application, the number of the protrusions is two, and the two protrusions are at different horizontal heights.

[0014] In an embodiment of the present application, the flow disturbing assembly further includes:

[0015] The fourth baffle is connected to the first baffle and is disposed opposite to the second baffle.

[0016] In an embodiment of the present application, the spoiler assembly further includes:

[0017] The fifth baffle is connected to the first baffle and is disposed opposite to the third baffle.

[0018] In an embodiment of the present application, spoiler grooves are provided on one side of the second baffle, and / or the third baffle, and / or the fourth baffle, and / or the fifth baffle away from the first baffle.

[0019] In an embodiment of the present application, when there are multiple spoiler assemblies, the multiple spoiler assemblies are spirally arranged along the length direction of the pipe body.

[0020] The present application also discloses a heat exchanger, characterized in that it includes the heat exchange tube as described above.

[0021] The present application also discloses an air conditioner, characterized in that it includes the heat exchange tube or the heat exchanger as described above.

[0022] By adopting the above technical solution, a U shape is formed through the mutual cooperation among the first baffle, the second baffle, and the third baffle, so that the fluid in the pipe body collides violently with the U-shaped spoiler assembly, thereby generating multi-directional spoilers and greatly increasing the turbulence degree of the fluid in the pipe. Description of the Drawings

[0023] The present invention will be described in detail below with reference to specific embodiments and drawings, wherein:

[0024] Figure 1 is a schematic structural diagram of the first embodiment of the present invention.

[0025] Figure 2 is Figure 1 an enlarged structural diagram of the spoiler assembly in Detailed Embodiments

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present invention and do not constitute a limitation to the present invention.

[0027] As Figures 1 to 2 shown, in order to achieve the above object, the present invention provides a heat exchange tube, including:

[0028] A pipe body 10 and at least one spoiler assembly 20 provided on the inner wall of the pipe body 10;

[0029] The spoiler assembly 20 includes:

[0030] A first baffle 21, connected to the inner sidewall of the tube body 10, for blocking the fluid in the tube body 10;

[0031] A second baffle 22, with one side connected to the first baffle 21; and

[0032] A third baffle 23, with one side connected to the first baffle 21 and disposed opposite to the second baffle 22.

[0033] Specifically, a heat exchange tube includes a tube body 10, a first baffle 21, a second baffle 22, and a third baffle 23.

[0034] The tube body 10 is made of a metal material, such as an aluminum alloy material or a alloy steel material. The tube body 10 made of a metal material has advantages such as strong supporting ability, wear resistance, and high heat exchange efficiency.

[0035] A spoiler assembly 20 is provided on the inner wall of the tube body 10, and the tube body 10 increases the heat exchange area inside the heat exchange tube through the spoiler assembly 20.

[0036] The spoiler assembly 20 includes a first baffle 21, and the first baffle 21 is connected to the tube body 10 in a fixed connection manner, such as welding. By using a fixed connection method, the connection strength between the first baffle 21 and the tube body 10 can be improved. Of course, according to the design requirements, the first baffle 21 and the tube body 10 can also be connected in a detachable manner, such as screw connection, bolt connection, etc. By using a detachable connection method, the installation and disassembly of the first baffle 21 can be facilitated, which is convenient for later maintenance.

[0037] The first baffle 21 is used to block the fluid in the tube body 10.

[0038] The second baffle 22 is made of the same material as the first baffle 21 and has the same advantages, which will not be elaborated here one by one. The second baffle 22 and the first baffle 21 are connected in a fixed connection manner, such as welding. By using a fixed connection method, the connection strength between the second baffle 22 and the first baffle 21 can be improved. Of course, according to the design requirements, the second baffle 22 and the first baffle 21 can also be connected in a detachable manner. By using a detachable connection method, the installation and disassembly of the second baffle 22 can be facilitated, which is convenient for later maintenance.

[0039] The third baffle 23 is made of the same material as the first baffle 21 and has the same advantages, which will not be elaborated here one by one. The third baffle 23 and the first baffle 21 are connected by a fixed connection method, such as welding. Through the fixed connection method, the connection strength between the third baffle 23 and the first baffle 21 can be improved. Of course, according to the design requirements, the third baffle 23 and the first baffle 21 can also be connected in a detachable manner. By using the detachable connection method, the installation and disassembly of the third baffle 23 can be facilitated, which is convenient for later maintenance.

[0040] The third baffle 23 and the second baffle 22 are arranged opposite to each other and cooperate with the first baffle 21 to form a U shape. The distance between the third baffle 23 and the second baffle 22 is 0.1 - 0.4 mm. The widths of the third baffle 23 and the second baffle 22 are 0.1 - 0.3 mm.

[0041] By adopting the above technical solution, a U shape is formed through the mutual cooperation among the first baffle 21, the second baffle 22, and the third baffle 23, so that the fluid in the pipe body 10 collides violently with the U-shaped flow disturbing component 20, thereby generating multi-directional flow disturbance and greatly improving the turbulence degree of the fluid in the pipe.

[0042] In an embodiment of the present application, the side of the first baffle 21 away from the second baffle 22 is an arc surface 27.

[0043] Specifically, the side of the first baffle 21 away from the second baffle 22 is an arc surface 27. By setting the arc surface 27, the flow of the fluid is facilitated, and the side pressure loss of the fluid is reduced.

[0044] In an embodiment of the present application, at least one protrusion 28 is provided on the arc surface 27.

[0045] Specifically, at least one protrusion 28 is provided on the arc surface 27. By setting the protrusion 28, the turbulence degree of the fluid can be increased, thereby improving the total heat transfer efficiency in the heat exchange tube.

[0046] In an embodiment of the present application, the number of the protrusions 28 is two, and the two protrusions 28 are at different horizontal heights.

[0047] Specifically, the number of the protrusions 28 is two, and the two protrusions 28 are at different horizontal heights, further increasing the turbulence degree of the fluid, thereby improving the total heat transfer efficiency in the heat exchange tube.

[0048] In an embodiment of the present application, the flow disturbing component 20 further includes:

[0049] A fourth baffle 24, which is connected to the first baffle and is arranged opposite to the second baffle 22.

[0050] Specifically, the spoiler assembly 20 further includes a fourth baffle 24, which is made of the same material as the first baffle 21 and has the same advantages, so they will not be elaborated here one by one.

[0051] The fourth baffle 24 and the first baffle 21 are connected by a fixed connection method, such as welding. By using the fixed connection method, the connection strength between the fourth baffle 24 and the first baffle 21 can be improved. Of course, according to the design requirements, the fourth baffle 24 and the first baffle 21 can also be connected in a detachable manner. By using the detachable connection method, the installation and disassembly of the fourth baffle 24 can be facilitated, which is convenient for later maintenance.

[0052] The fourth baffle 24 is disposed opposite to the second baffle 22, and a U-shape is formed between the fourth baffle 24 and the second baffle 22, further causing the fluid in the pipe body 10 to collide violently with the U-shaped spoiler assembly 20, thereby generating multi-directional flow disturbance and greatly increasing the turbulence degree of the fluid in the pipe. The distance between the fourth baffle 24 and the second baffle 22 is between 0.1 - 0.3 mm. Of course, it can be imagined that the first baffle 21, the second baffle 22, the third baffle 23, the fourth baffle 24, and the fifth baffle 25 can also be obtained by machining on the pipe body with a milling cutter or the like.

[0053] In an embodiment of the present application, the spoiler assembly 20 further includes:

[0054] A fifth baffle 25, which is connected to the first baffle 21 and is disposed opposite to the third baffle 23.

[0055] Specifically, the spoiler assembly 20 further includes a fifth baffle 25, which is made of the same material as the first baffle 21 and has the same advantages, so they will not be elaborated here one by one.

[0056] The fifth baffle 25 and the first baffle 21 are connected by a fixed connection method, such as welding. By using the fixed connection method, the connection strength between the fifth baffle 25 and the first baffle 21 can be improved. Of course, according to the design requirements, the fifth baffle 25 and the first baffle 21 can also be connected in a detachable manner. By using the detachable connection method, the installation and disassembly of the fifth baffle 25 can be facilitated, which is convenient for later maintenance.

[0057] The fifth baffle 25 is disposed opposite to the third baffle 23, and a U-shape is formed between the fifth baffle 25 and the third baffle 23, further causing the fluid in the pipe body 10 to collide violently with the U-shaped spoiler assembly 20, thereby generating multi-directional flow disturbance and greatly increasing the turbulence degree of the fluid in the pipe.

[0058] In an embodiment of the present application, a flow disturbance groove 26 is provided on a side of the second baffle 22, and / or the third baffle 23, and / or the fourth baffle 24, and / or the fifth baffle 25 away from the first baffle 21.

[0059] Specifically, a flow disturbance groove 26 is provided on a side of the second baffle 22, and / or the third baffle 23, and / or the fourth baffle 24, and / or the fifth baffle 25 away from the first baffle 21. By providing the flow disturbance groove 26, when a fluid flows through both side walls of the flow disturbance groove 26 in the tube body 10, intense collisions occur in the multi-layer U-shaped internal cavity, generating multi-directional flow disturbances, greatly increasing the turbulence degree of the fluid in the tube, and at the same time, the small teeth at its end can greatly damage the flow boundary layer near the wall surface, greatly improving the heat transfer efficiency in the tube.

[0060] In an embodiment of the present application, when there are multiple flow disturbance components 20, the multiple flow disturbance components 20 are spirally arranged along the length direction of the tube body 10.

[0061] Specifically, when there are multiple flow disturbance components 20, the multiple flow disturbance components 20 are spirally arranged along the length direction of the tube body 10, which is convenient for the processing of the tube body 10. The inclination angle of the spiral is preferably 45 degrees. The length direction of the flow disturbance component 20 is tangent to the spiral advancing direction. It can be imagined that the fourth baffle 24 is asymmetrically arranged with the second baffle 22, and the third baffle 23 is asymmetrically arranged with the fifth baffle 25. By the asymmetric arrangement, the fluid flow in the tube body 10 can be improved.

[0062] The present application also discloses a heat exchanger, which is characterized in that it includes the heat exchange tube as described above.

[0063] The present application also discloses an air conditioner, which is characterized in that it includes the heat exchange tube or the heat exchanger as described above.

[0064] It should be noted that the terms used above are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0065] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0066] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus, should not be construed as limiting the scope of protection of the present application.

[0067] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A heat exchange tube, comprising a tube body, characterized in that, It further includes at least one flow disturbing component disposed on the inner wall of the tube body. The flow disturbing component includes: a first baffle, a second baffle, and a third baffle for blocking the fluid in the tube body. The third baffle and the second baffle are oppositely arranged, and one side of them is connected to the first baffle to form a U-shaped structure. The side of the first baffle away from the U-shaped structure is an arc surface.

2. The heat exchange tube according to claim 1, characterized in that, At least one protrusion is provided on the arc surface.

3. The heat exchange tube according to claim 2, wherein, The number of the protrusions is two, and the two protrusions are at different horizontal heights.

4. The heat exchange tube according to claim 1, characterized in that, The flow disturbing component further includes: a fourth baffle, one side of which is connected to the first baffle and is oppositely arranged with the second baffle to form a U-shaped structure; and a fifth baffle, one side of which is connected to the first baffle and is oppositely arranged with the third baffle to form a U-shaped structure.

5. The heat exchange tube according to claim 4, wherein, The second baffle, the third baffle, the fourth baffle, and the fifth baffle are provided with flow disturbing grooves at the end portions on the side away from the first baffle.

6. The heat exchange tube according to claim 1, wherein When there are multiple flow disturbing components, the multiple flow disturbing components are spirally arranged along the length direction of the tube body.

7. A heat exchanger, characterized in that, The heat exchanger uses the heat exchange tube according to any one of claims 1 to 6.

8. An air conditioner, characterized in that, The heat exchanger of the air conditioner uses the heat exchange tube according to any one of claims 1 to 6.

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