Heat exchange tube strengthening structure

Abstract

The utility model relates to the technical field of pipeline structures, in particular to a heat exchange tube strengthening structure. The heat exchange tube strengthening structure comprises a tube body and at least two protruding structures arranged on the outer surface of the tube body, a cavity structure is arranged in the tube wall of the tube body, and the cavity structure is located between every two adjacent protruding structures. The protruding structures are arranged on the outer surface of the tube body, so that the strength and the pressure resistance of the heat exchange tube are enhanced, and meanwhile, the cavity structures are arranged between every two adjacent protruding structures so that stress generated by the protruding structures can be dispersed.

Description

Technical Field

[0001] This utility model relates to the field of pipeline structure technology, specifically to a heat exchanger tube reinforcement structure. Background Technology

[0002] Chinese invention patent application number 201010182212.8 discloses a shell-and-tube heat exchanger. In its manufacturing process, heat exchange tubes are first filled with metal powder and then sintered. The sintered heat exchange tubes are then installed into a shell, and finally, metal powder is filled between the heat exchange tubes before sintering again. This manufacturing method requires the heat exchange tubes to have high strength and be resistant to deformation during sintering. Current aluminum heat exchange tubes, which offer good heat exchange performance, cannot meet these requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a heat exchange tube strengthening structure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a heat exchange tube reinforcement structure, including a tube body and at least two protrusions disposed on the outer surface of the tube body, wherein a cavity structure is provided in the tube wall of the tube body, and the cavity structure is located between two adjacent protrusions.

[0005] The two ends of the protruding structure are flush with the two ends of the tube body.

[0006] The protruding structure is arranged in a straight line or spiral shape on the outer surface of the tube.

[0007] The two ends of the cavity structure are flush with the two ends of the tube body.

[0008] The side of the protrusion structure away from the tube body is a single arc surface or a continuous arc surface.

[0009] The maximum thickness of the protruding structure is 1 / 2 to 2 times the thickness of the pipe wall.

[0010] The maximum thickness of the cavity structure is less than or equal to 1 / 3 of the thickness of the pipe wall.

[0011] The tube body has an inner circle and outer square structure or an inner circle and outer circle structure.

[0012] The protruding structures are uniformly arranged on the outer surface of the tube.

[0013] The cavity structures are arranged in groups of at least two, and are set in groups between two adjacent protrusion structures.

[0014] The beneficial effects of this utility model are as follows: The heat exchange tube strengthening structure of this utility model enhances the strength and compressive strength of the heat exchange tube by setting a protruding structure on the outer surface of the tube body, and at the same time, a cavity structure is set between two adjacent protruding structures to disperse the stress generated by the protruding structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the heat exchange tube reinforcement structure according to Embodiment 1 of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the heat exchange tube reinforcement structure according to Embodiment 1 of this utility model;

[0017] Figure 3 This is a schematic diagram of the heat exchange tube reinforcement structure according to Embodiment 2 of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the heat exchange tube reinforcement structure according to Embodiment 2 of this utility model;

[0019] Label Explanation:

[0020] 1. Tube body; 2. Protruding structure; 3. Cavity structure. Detailed Implementation

[0021] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0022] Please refer to Figures 1 to 4 A heat exchange tube reinforcement structure includes a tube body and at least two protrusions disposed on the outer surface of the tube body. A cavity structure is provided in the tube wall of the tube body, and the cavity structure is located between two adjacent protrusions.

[0023] As can be seen from the above description, the beneficial effects of this utility model are as follows: The heat exchange tube reinforcement structure of this utility model can achieve a pressure resistance effect and protect the surface of the tube body by setting a protruding structure on the outer surface of the tube body, preventing the tube body from being damaged by friction or pressure; the cavity structure set between two adjacent protruding structures can disperse the stress generated by the protruding structure and reduce the weight of the heat exchange tube, thereby obtaining a heat exchange tube reinforcement structure with high strength and good pressure resistance.

[0024] Furthermore, the two ends of the protruding structure are flush with the two ends of the tube body.

[0025] Furthermore, the raised structures are arranged in a straight line or spiral shape on the outer surface of the tube.

[0026] Furthermore, the two ends of the cavity structure are flush with the two ends of the tube body.

[0027] Furthermore, the side of the protruding structure away from the tube body is a single arc surface or a continuous arc surface.

[0028] As can be seen from the above description, the outer contour of the protruding structure is arc-shaped, which can improve the compressive strength.

[0029] Furthermore, the maximum thickness of the protruding structure is 1 / 2 to 2 times the thickness of the pipe wall.

[0030] As can be seen from the above description, the maximum thickness of the protrusion structure is the height of the protrusion. If the maximum thickness of the protrusion structure is too large, it will easily compress the tube body, increase the weight of the heat exchange tube and increase the cost; if the maximum thickness of the protrusion structure is too small, the pressure resistance effect will not be obvious. Therefore, the maximum thickness of the protrusion structure should be controlled to be 1 / 2 to 2 times the thickness of the tube wall.

[0031] Furthermore, the maximum thickness of the cavity structure is less than or equal to one-third of the thickness of the tube wall.

[0032] Preferably, the maximum thickness of the cavity structure is 1 / 5 to 1 / 3 times the thickness of the pipe wall.

[0033] As can be seen from the above description, if the maximum thickness of the cavity structure is too large, the compressive strength of the pipe wall will decrease, and if the maximum thickness of the cavity structure is too small, the stress dispersion effect will be poor. Therefore, the maximum thickness of the cavity structure should be controlled to be 1 / 5 to 1 / 3 times the thickness of the pipe wall.

[0034] Furthermore, the tube body has an inner circle and outer square structure or an inner circle and outer circle structure.

[0035] As can be seen from the above description, square tubes and round tubes are selected based on the design requirements of the heat exchanger.

[0036] Furthermore, the raised structures are evenly distributed on the outer surface of the tube.

[0037] Furthermore, the cavity structures are arranged in groups of at least two, with each group positioned between two adjacent protruding structures.

[0038] Furthermore, the raised structure is integrally formed with the tube body.

[0039] Please refer to Figure 1 and 2Embodiment 1 of this utility model is as follows: A heat exchange tube reinforcement structure includes a tube body 1 and eight protruding structures 2 uniformly disposed on the outer surface of the tube body 1. The protruding structures 2 are integrally formed with the tube body 1. The tube body 1 has an inner circle and an outer circle structure. The side of the protruding structure 2 away from the tube body 1 is a single arc surface. The two ends of the protruding structure 2 are flush with the two ends of the tube body 1. The protruding structures 2 are disposed in a straight line on the outer surface of the tube body 1. A cavity structure 3 is provided in the tube wall of the tube body 1. The two ends of the cavity structure 3 are flush with the two ends of the tube body 1. The cavity structures 3 are arranged in groups of two, and are disposed between two adjacent protruding structures 2 in groups. The maximum thickness of the protruding structure 2 is 1 / 2 times the thickness of the tube wall. The maximum thickness of the cavity structure 3 is 1 / 3 times the thickness of the tube wall.

[0040] Please refer to Figure 3 and 4 Embodiment 2 of this utility model is as follows: a heat exchange tube reinforcement structure includes a tube body 1 and four protruding structures 2 uniformly disposed on the outer surface of the tube body 1. The protruding structures 2 are integrally formed with the tube body 1. The tube body 1 has an inner circle and outer square structure. The side of the protruding structure 2 away from the tube body 1 has three continuous arc surfaces. The two ends of the protruding structure 2 are flush with the two ends of the tube body 1. The protruding structure 2 is spirally disposed on the outer surface of the tube body 1. A cavity structure 3 is provided in the tube wall of the tube body 1. The two ends of the cavity structure 3 are flush with the two ends of the tube body 1. The cavity structures 3 are arranged in groups of three in a triangular distribution. The cavity structures 3 are arranged in groups between two adjacent protruding structures 2. The maximum thickness of the protruding structure 2 is twice the thickness of the tube wall at the location of the protruding structure 2. The maximum thickness of the cavity structure 3 is one-quarter the thickness of the tube wall at the location of the cavity structure 3.

[0041] In summary, the heat exchange tube reinforcement structure provided by this utility model has the following advantages:

[0042] 1. A raised structure 2 is provided on the outer surface of the tube body 1, which can play a role in resisting pressure and prevent the tube body 1 from being damaged by friction or pressure.

[0043] 2. A cavity structure 3 is provided between two adjacent protrusions 2, which can disperse the stress generated by the protrusions 2 and reduce the weight of the heat exchange tube.

[0044] 3. The compressive strength effect is controlled by limiting the maximum thickness of the protruding structure 2 and the maximum thickness of the cavity structure 3.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat exchanger tube reinforcement structure, characterized in that, It includes a tube body and at least two protruding structures disposed on the outer surface of the tube body. The tube body has a cavity structure in its wall, and the cavity structure is located between two adjacent protruding structures.

2. The heat exchanger tube reinforcement structure according to claim 1, characterized in that, The two ends of the protruding structure are flush with the two ends of the tube body.

3. The heat exchanger tube reinforcement structure according to claim 1, characterized in that, The protruding structures are arranged in a straight line or spiral shape on the outer surface of the tube.

4. The heat exchanger tube reinforcement structure according to claim 1, characterized in that, The two ends of the cavity structure are flush with the two ends of the tube body.

5. The heat exchanger tube reinforcement structure according to claim 1, characterized in that, The side of the protrusion away from the tube body is a single arc surface or a continuous arc surface.

6. The heat exchanger tube reinforcement structure according to claim 1, characterized in that, The maximum thickness of the protruding structure is 1 / 2 to 2 times the thickness of the pipe wall.

7. The heat exchanger tube reinforcement structure according to claim 1, characterized in that, The maximum thickness of the cavity structure is less than or equal to 1 / 3 of the thickness of the tube wall.

8. The heat exchanger tube reinforcement structure according to claim 1, characterized in that, The tube body has an inner circle and outer square structure or an inner circle and outer circle structure.

9. The heat exchanger tube reinforcement structure according to claim 8, characterized in that, The raised structures are evenly distributed on the outer surface of the tube.

10. The heat exchanger tube reinforcement structure according to claim 8, characterized in that, The cavity structures are arranged in groups of at least two, and are set in groups between two adjacent protrusion structures.

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