Spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins

Abstract

The utility model provides a spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins, which comprises a heat exchange tube, a refrigerant flows in the heat exchange tube, an L-shaped bionic flying wing spiral fin body is spirally wound on the outer side wall of the heat exchange tube around the outer wall, and the L-shaped bionic flying wing spiral fin body comprises a base part, a bending part and a fin part; and one side of the base part is fixedly connected with a bending part. By optimizing the spiral fin tube, the fin part is in the shape of a wing when a bird flies, so that airflow turbulence of the spiral fin tube is optimized, the air convection speed is increased, the heat conduction efficiency of the spiral fin tube is improved, the heat exchange capacity is greatly improved under the condition of the same heat dissipation area, the energy consumption of refrigeration equipment can be reduced, and the heat dissipation efficiency of the refrigeration equipment is improved. A heat exchanger of existing refrigeration equipment is reduced, so that materials and production cost are saved, the fixing support is simple in structure and firm in fixation, and the condenser assembly process is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger manufacturing, in particular to a spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins. Background Art

[0002] Generally, a refrigeration system is a system that absorbs heat in the refrigeration system and dissipates it to the outside by circulating the refrigerant through a compressor, a condenser, an expansion valve, and an evaporator. The condenser and evaporator used in this refrigeration system are called heat exchangers. This type of condenser can be divided into a wire condenser, a microchannel condenser, and a spiral fin condenser according to its shape.

[0003] The spiral fin condenser comprises a spiral fin tube, wherein the spiral fin tube comprises a refrigerant tube and a spiral fin, wherein the refrigerant flows in the refrigerant tube, and the spiral fin is connected to the outer surface of the refrigerant tube to increase the heat exchange area with the outside air.

[0004] The embodiment of the spiral fin includes a special-shaped spiral fin whose cross-section along the length direction is L-shaped and the long side of the fin is in the angle and shape of the wings of a flying bird. The L-shaped spiral fin is manufactured in a variety of ways. The condenser is designed to reduce wind resistance, improve the performance of the refrigeration device and reduce noise. In particular, the condenser is designed to prevent the performance of the refrigeration device from being reduced by avoiding excessive temperature rise, to increase the flow rate of the refrigerant, to improve the heat exchange rate, and to have a compact structure.

[0005] At present, the spiral fin condensers used in the market also have a cross-sectional shape of "I" along the length direction of the spiral fins. The fins are all vertically standing on the tubes. The contact area between the structure and the tube is too small, resulting in too large heat transfer resistance, and it does not conform to the air flow characteristics. In addition, the fins are very dense, which brings certain resistance to air flow and is not conducive to heat dissipation. The spiral fins also have a cross-sectional shape of "L" along the length direction and the fins are at an angle and shape like the wings of a flying bird. One side of the L-shaped spiral fin is close to the heat exchange tube to increase the heat conduction area, and the other side is in the shape of a flying wing to reduce wind resistance, which greatly increases the heat dissipation capacity of the condenser. For this reason, a spiral fin tube heat exchanger with an L-shaped bionic flying wing spiral fin is proposed. Utility Model Content

[0006] In view of this, the present invention hopes to provide a spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the embodiment of the utility model is implemented as follows: a spiral fin tube with an L-shaped bionic flying wing spiral fin, comprising a heat exchange tube, a refrigerant flows inside the heat exchange tube, an outer side wall of the heat exchange tube is spirally wound around the outer wall with an L-shaped bionic flying wing spiral fin body, and the L-shaped bionic flying wing spiral fin body comprises: a base, a curved portion and a fin portion;

[0008] A curved portion is fixedly connected to one side of the base, a fin portion is fixedly connected to a side of the curved portion away from the base, the base is spiral-shaped, and an inner side wall of the base is fixedly connected to an outer side wall of the heat exchange tube.

[0009] Further preferably, the fin portion is in an arc shape, and the fin portion is inclined toward one side of the base.

[0010] Further preferably, the thickness of the cross section of the fin portion decreases toward the periphery along the length direction, and the fin portion is in the shape of a wing of a flying bird.

[0011] Further preferably, the thickness of the cross section of the base portion decreases in a direction away from the curved portion.

[0012] According to another aspect of the utility model, an L-shaped bionic flying wing spiral fin heat exchanger is provided, comprising: a spiral fin tube of the L-shaped bionic flying wing spiral fin as described above, and a fixed bracket, wherein the fixed bracket maintains the shape of the spiral fin tube of the L-shaped bionic flying wing spiral fin by fixing at least one of the spiral fin tube of the L-shaped bionic flying wing spiral fin and the L-shaped bionic flying wing spiral fin body.

[0013] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0014] The utility model optimizes the spiral fin tube so that the fin portion is in the shape of a wing of a flying bird, thereby optimizing the air flow turbulence of the spiral fin tube, thereby increasing the air convection speed and the heat conduction efficiency of the spiral fin tube. Therefore, under the condition of the same heat dissipation area, the heat exchange capacity is greatly increased, the energy consumption of the refrigeration equipment can be reduced, and the heat exchanger of the existing refrigeration equipment can be reduced, thereby saving materials and production costs. In addition, the fixed bracket has a simple structure and is firmly fixed, which greatly reduces the assembly process of the condenser.

[0015] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a structural diagram from one perspective of the utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of a heat exchange tube of the utility model;

[0019] Figure 3 For the utility model Figure 2 Magnified view of area A.

[0020] Reference numerals: 10, heat exchange tube; 11, L-shaped bionic flying wing spiral fin body; 101, base; 102, bending part; 103, fin part. DETAILED DESCRIPTION

[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0022] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown, the embodiment of the utility model provides a spiral fin tube with an L-shaped bionic flying wing spiral fin, comprising a heat exchange tube 10, in which a refrigerant flows, and an L-shaped bionic flying wing spiral fin body 11 is spirally wound around the outer wall of the heat exchange tube 10, and the L-shaped bionic flying wing spiral fin body 11 comprises: a base 101, a curved portion 102 and a fin portion 103;

[0024] A bent portion 102 is fixedly connected to one side of the base 101, and a fin portion 103 is fixedly connected to the side of the bent portion 102 away from the base 101. The base 101 is spiral, and the inner wall of the base 101 is fixedly connected to the outer wall of the heat exchange tube 10. The heat exchange tube 10 is made of metal material. The L-shaped bionic flying wing spiral fin body 11 is formed by winding on the outer wall of the heat exchange tube 10, so that the shape of the cross section in the extension direction is roughly "L" shaped, and the L-shaped bionic flying wing spiral fin body 11 is made of steel or aluminum metal material.

[0025] In one embodiment, specifically: the fin portion 103 is in an arc shape, and the fin portion 103 is inclined toward one side of the base 101 .

[0026] In one embodiment, specifically: the thickness of the cross section of the fin portion 103 decreases toward the periphery along the length direction, and the fin portion 103 is in the shape of a wing of a flying bird.

[0027] In one embodiment, specifically: the thickness of the cross section of the base portion 101 decreases in a direction away from the bent portion 102 .

[0028] According to another aspect of the utility model, an L-shaped bionic flying wing spiral fin heat exchanger is provided, comprising: a spiral fin tube of the L-shaped bionic flying wing spiral fin as above, and a fixed bracket, which maintains the shape of the spiral fin tube of the L-shaped bionic flying wing spiral fin by fixing at least one of the spiral fin tube of the L-shaped bionic flying wing spiral fin and the L-shaped bionic flying wing spiral fin body 11.

[0029] When the utility model is working: the L-shaped bionic flying-wing spiral fin body 11 is formed by winding on the outer side wall of the heat exchange tube 10, so that the shape of the cross section in the extension direction is roughly "L"-shaped, by increasing the contact area between the base 101 and the heat exchange tube 10, and by optimizing the fin portion 103, the fin portion 103 is in the shape of a wing of a flying bird, and the thickness of the cross section of the fin portion 103 decreases toward the periphery along the length direction, thereby optimizing the phenomenon of air flow turbulence in the spiral fin tube, making the air convection speed faster, and increasing the heat conduction efficiency of the fin portion 103 of the spiral fin tube, so that under the condition of the same heat dissipation area, the heat exchange capacity is greatly increased, and the energy consumption of the refrigeration equipment is reduced, and the fixed bracket has a simple structure and is firmly fixed, which greatly reduces the assembly process of the condenser.

[0030] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins, characterized in that: The invention comprises a heat exchange tube (10), a refrigerant flows inside the heat exchange tube (10), an outer wall of the heat exchange tube (10) is spirally wound with an L-shaped bionic flying wing spiral fin body (11) around the outer wall, and the L-shaped bionic flying wing spiral fin body (11) comprises: a base (101), a bent portion (102) and a fin portion (103); A curved portion (102) is fixedly connected to one side of the base (101), a fin portion (103) is fixedly connected to the side of the curved portion (102) away from the base (101), the base (101) is spiral-shaped, and the inner wall of the base (101) is fixedly connected to the outer wall of the heat exchange tube (10).

2. The spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins according to claim 1, characterized in that: The fin portion (103) is in an arc shape, and the fin portion (103) is inclined toward one side of the base portion (101).

3. The spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins according to claim 2, characterized in that: The thickness of the cross section of the fin portion (103) decreases toward the periphery along the length direction.

4. The spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins according to claim 1, characterized in that: The thickness of the cross section of the base portion (101) decreases in a direction away from the curved portion (102).

5. The spiral fin tube heat exchanger with L-shaped bionic flying wing spiral fins according to claim 1, characterized in that: It also comprises a fixing bracket, which maintains the shape of the spiral fin tube of the L-shaped bionic flying wing spiral fin by fixing at least one of the heat exchange tube (10) and the L-shaped bionic flying wing spiral fin body (11).

Images