CN211120811U - Heat exchange tube, heat exchanger and heat exchange system - Google Patents
Heat exchange tube, heat exchanger and heat exchange system Download PDFInfo
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- CN211120811U CN211120811U CN201921417551.2U CN201921417551U CN211120811U CN 211120811 U CN211120811 U CN 211120811U CN 201921417551 U CN201921417551 U CN 201921417551U CN 211120811 U CN211120811 U CN 211120811U
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Abstract
The utility model relates to a heat exchange tube technical field, concretely relates to heat exchange tube, heat exchanger and heat transfer system. The heat exchange tube comprises a tube body and heat exchange units densely distributed on the tube body, the heat exchange units are tightly connected and have multiple groups, any one group of heat exchange units is arranged along the peripheral direction of the tube body in a winding mode, and the adjacent two groups of heat exchange units are arranged in a staggered mode. The heat exchange units are densely distributed on the pipe body, so that the heat exchange area of the pipe body can be increased; the two adjacent groups of heat exchange units are arranged in a staggered manner, so that the flowing state of a liquid film can be changed, the Reynolds coefficient is increased, and the heat exchange coefficient is improved; the turbulence intensity of the refrigerant is enhanced, and the overall heat exchange performance of the heat exchange tube is improved.
Description
Technical Field
The utility model relates to a heat exchange tube technical field, concretely relates to heat exchange tube, heat exchanger and heat transfer system.
Background
Nowadays, with the development of society, the application of heat exchangers is more and more extensive, and the change of its shape and material is also many, including copper, titanium, stainless steel, copper-nickel alloy etc.. Most of heat exchanger inner tubes adopt copper tubes as heat exchange tubes, so that the structure is simple, the processing is convenient, and the heat exchange efficiency of unit area is not high enough. In the prior art, a tube body with spiral fins is used as an inner tube of a heat exchanger, and tooth platforms are formed on the spiral fins, so that the heat exchange capacity of the inner tube of the heat exchanger is stronger than that of a copper tube, but the heat exchange capacity is still limited. With the continuous new requirements of users on heat exchange capacity and efficiency, and the limitations of heat exchange capacity and efficiency of the existing heat exchangers, new social requirements cannot be met gradually.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the limited defect of heat transfer ability of the heat exchange tube among the prior art to provide a heat exchange tube that heat transfer ability is strong, the heat transfer is effectual, install the heat exchanger of this heat exchange tube, and install the heat transfer system of heat exchanger.
In order to solve the problem, the utility model discloses a heat exchange tube, including the body, with densely covered in heat transfer unit on the body, heat transfer unit zonulae occludens has the multiunit, arbitrary group the heat transfer unit is followed the peripheral direction of body is around establishing, and is adjacent two sets of crisscross setting between the heat transfer unit.
The multiple groups of heat exchange units are arranged along the axial direction of the pipe body repeatedly.
The heat exchanger comprises a first group of heat exchange units and a second group of heat exchange units, wherein the first group of heat exchange units and the second group of heat exchange units are arranged in a staggered mode, and the first group of heat exchange units and the second group of heat exchange units are arranged along the axial direction of the pipe body in a repeated arrangement mode.
The heat exchange unit is characterized in that one end, far away from the tube body, of the heat exchange unit is a tip end, or one end, facing the tube body, of the heat exchange unit is a tip end.
The heat exchange units are pyramid-shaped convex teeth, and the height of the convex teeth is smaller than the wall thickness of the pipe body.
The tooth height of the convex teeth is 0.1-0.5 mm, the distance between the convex teeth in the same group is 0.2-0.8 mm, and the tooth crest angle of the convex teeth is 60-120 degrees.
The heat exchange unit is a pyramid-shaped concave tooth which is sunken into the tube body, and the tooth depth of the concave tooth is smaller than the thickness of the tube body.
The depth of the concave teeth is 0.1-0.5 mm, the distance between the concave teeth in the same group is 0.2-0.8 mm, and the tooth tip angle of the concave teeth is 60-120 degrees.
The utility model discloses a heat exchanger has foretell heat exchange tube.
The utility model discloses a heat transfer system has foretell heat exchanger.
The utility model discloses technical scheme has following advantage:
1. the utility model discloses a heat exchange tube, including the body with densely covered in heat transfer unit on the body, heat transfer unit zonulae occludens has the multiunit, arbitrary group heat transfer unit follows the periphery direction of body is around establishing, and is adjacent two sets of crisscross setting between the heat transfer unit. The heat exchange units are densely distributed on the pipe body, so that the heat exchange area of the pipe body can be increased; the two adjacent groups of heat exchange units are arranged in a staggered manner, so that the flowing state of a liquid film can be changed, the Reynolds coefficient is increased, and the heat exchange coefficient is improved; the turbulence intensity of the refrigerant is enhanced, and the overall heat exchange performance of the heat exchange tube is improved.
2. The utility model discloses a heat exchange tube, keeping away from of heat transfer unit the one end of body is most advanced, and most advanced destroys fluid surface tension easily, changes the flow state of liquid film, improves heat transfer coefficient for the heat transfer performance of heat exchange tube is better. And, heat transfer unit be close to when the one end of body is most advanced, in the space that adjacent heat transfer unit encloses, and heat transfer unit's orientation when the one end of body is most advanced, in heat transfer unit's most advanced, form the vaporization core, the bubble that the vaporization formed spills over after growing up rapidly, takes place heat exchange with the fluid, destroys fluid surface tension simultaneously and makes the effective extension of liquid film for the heat dispersion of heat exchange tube is better.
3. The heat exchange tube of the utility model has a pyramid-shaped concave tooth or concave tooth structure which is relatively stable and convenient to process and manufacture.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a heat exchange tube;
FIG. 2 is a schematic structural view of a heat exchange unit according to the first embodiment;
FIG. 3 is a top view of the heat exchange portion shown in FIG. 2;
FIG. 4 is a schematic structural view of a cross-sectional view of the heat exchanging part shown in FIG. 2, the cross-sectional view being perpendicular to the axial direction of the tube body;
fig. 5 is a schematic structural view of a heat exchanging portion according to a second embodiment;
FIG. 6 is a top view of the heat exchanging portion shown in FIG. 5;
fig. 7 is a structural view of a cross-sectional view of the heat exchanging part shown in fig. 5, the cross-sectional view being perpendicular to an axial direction of the pipe body;
description of reference numerals:
1-pipe body, 2-pipe body end, 3-heat exchanging part, 4-convex tooth, 5-concave tooth, 6-first group of heat exchanging unit, 7-second group of heat exchanging unit, h-tooth height, m-tooth depth, α -tooth tip angle, β -tooth tip angle, w-tooth spacing and L-wall thickness.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The first embodiment;
the heat exchange tube in the embodiment comprises a tube body 1 and heat exchange units densely distributed on the tube body 1, wherein the heat exchange units are tightly connected and are two groups, the heat exchange units are a first group of heat exchange units 6 and a second group of heat exchange units 7, any group of heat exchange units are wound in the peripheral direction of the tube body 1, the first group of heat exchange units 6 and the second group of heat exchange units 7 are adjacent to each other and are arranged in a staggered mode, and the first group of heat exchange units 6 and the second group of heat exchange units 7 are arranged in an axial repeated mode along the tube body 1.
In this embodiment, one end of the heat exchange unit, which is far away from the pipe body 1, is a tip, the heat exchange unit is a pyramid-shaped convex tooth 4, the height of the convex tooth 4 is smaller than L of the wall thickness of the pipe body 1, the tooth height h of the convex tooth 4 is 0.1-0.5 mm, the distance between the convex teeth 4 in the same group is 0.2-0.8 mm, and the tooth tip angle α of the convex tooth 4 is 60-120 °.
In this embodiment, the heat exchange tube is a metal tube, and the heat exchange unit is formed by processing a smooth metal tube through equipment. In the processing process, pipe body end parts 2 are reserved at two ends of a pipe body 1, a heat replacing part 3 is arranged between the two pipe body end parts 2, and the length of the pipe body end part 2 along the axial direction of the pipe body 1 is 50 mm-150 mm.
The heat exchange units are densely distributed on the tube body 1, so that the heat exchange area of the tube body 1 can be increased; the two adjacent groups of heat exchange units are arranged in a staggered manner, so that the flowing state of a liquid film can be changed, the Reynolds coefficient is increased, and the heat exchange coefficient is improved; the turbulence intensity of the refrigerant is enhanced, and the overall heat exchange performance of the heat exchange tube is improved.
The tip of the convex tooth 4 is easy to damage the surface tension of the fluid, change the flowing state of the liquid film, increase the Reynolds coefficient and improve the heat exchange coefficient; and the heat exchange area of the pipe body 1 can be increased, so that the heat exchange performance of the heat exchange pipe is better. And, when the one end of heat transfer unit is kept away from body 1 is the pointed end, forms the vaporization core in the space that adjacent heat transfer unit encloses, and the bubble that the vaporization formed spills over after growing up fast, takes place heat exchange with the fluid, destroys fluid surface tension simultaneously and makes the liquid film effectively expand, also can increase the thermal diffusivity of heat exchange tube.
Example two
The difference between the present embodiment and the first embodiment is that one end of the heat exchange unit close to the pipe body 1 is a tip, the heat exchange unit is a pyramid-shaped concave tooth 5, the tooth depth m of the concave tooth 5 is less than the thickness of the pipe body 1, the tooth depth m of the concave tooth 5 is 0.1-0.5 mm, the distance between the concave teeth 5 in the same group is 0.2-0.8 mm, and the tooth crest angle β of the concave tooth 5 is 60-120 °.
The densely distributed concave teeth 5 can increase the heat exchange area of the tube body 1, change the flow state of a liquid film, increase the Reynolds coefficient and improve the heat exchange coefficient, so that the heat exchange performance of the heat exchange tube is better. And, when heat transfer unit's orientation body 1's one end is the pointed end, form the vaporization core in heat transfer unit's pointed end, the bubble that the vaporization formed spills over after growing up fast, takes place heat exchange with the fluid, destroys fluid surface tension simultaneously and makes the effective extension of liquid film, also can increase the heat transfer nature of heat exchange tube.
Example three:
the difference between this embodiment and embodiment one and embodiment two lies in including having three groups the heat transfer unit is first heat transfer unit 6, second heat transfer unit 7 and the third heat transfer unit of group respectively, arbitrary group the heat transfer unit is followed the peripheral direction of body 1 is around establishing, and is adjacent first heat transfer unit 6 with crisscross the setting each other between the second heat transfer unit 7, adjacent second heat transfer unit 7 with crisscross the setting each other between the third heat transfer unit, adjacent third heat transfer unit with crisscross the setting each other between the first heat transfer unit 6, second heat transfer unit 7 and the third heat transfer unit of group are followed the axial repeat arrangement of body 1 sets up. The distance between the heat exchange units in the same group is also 0.2-0.8 mm, and the heat exchange units are arranged more densely.
Example four:
the present embodiment provides a heat exchanger having a heat exchange tube in any one of the first to third embodiments.
Example five:
the present embodiment provides a heat exchange system having the heat exchanger of the fourth embodiment.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. The heat exchange tube comprises a tube body (1) and heat exchange units densely distributed on the tube body (1), and is characterized in that the heat exchange units are tightly connected and are provided with a plurality of groups, and any group of heat exchange units are wound around the tube body (1) in the peripheral direction and are arranged adjacently in a staggered manner.
2. A heat exchange tube according to claim 1, wherein a plurality of groups of the heat exchange units are repeatedly arranged in the axial direction of the tube body (1).
3. A heat exchange tube according to claim 2, characterized by comprising a first group of heat exchange units (6) and a second group of heat exchange units (7), wherein the first group of heat exchange units (6) and the second group of heat exchange units (7) are arranged in a staggered manner, and the first group of heat exchange units (6) and the second group of heat exchange units (7) are arranged in a repeated arrangement along the axial direction of the tube body (1).
4. A heat exchange tube according to any one of claims 1 to 3, characterised in that the end of the heat exchange unit remote from the tube body (1) is pointed or the end of the heat exchange unit facing the tube body (1) is pointed.
5. A heat exchange tube according to claim 4, characterized in that the heat exchange unit is a pyramid-shaped tooth (4), the height of the tooth (4) being smaller than the wall thickness (L) of the tube body (1).
6. A heat exchange tube according to claim 5, characterized in that the teeth (4) have a height (h) of 0.1-0.5 mm, the distance between the teeth (4) of the same group is 0.2-0.8 mm, and the tip angle (α) of the teeth (4) is 60 ° -120 °.
7. A heat exchange tube according to claim 4, characterized in that the heat exchange unit is a pyramid-shaped concave tooth (5) recessed into the tube body (1), and the depth (m) of the concave tooth (5) is smaller than the thickness of the tube body (1).
8. A heat exchange tube according to claim 7, characterized in that the depth (m) of the concave teeth (5) is 0.1-0.5 mm, the distance between the concave teeth (5) of the same group is 0.2-0.8 mm, and the crest angle (β) of the concave teeth (5) is 60 ° -120 °.
9. A heat exchanger characterized by having the heat exchange tube of any one of claims 1 to 8.
10. A heat exchange system having the heat exchanger of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921417551.2U CN211120811U (en) | 2019-08-28 | 2019-08-28 | Heat exchange tube, heat exchanger and heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921417551.2U CN211120811U (en) | 2019-08-28 | 2019-08-28 | Heat exchange tube, heat exchanger and heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211120811U true CN211120811U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921417551.2U Active CN211120811U (en) | 2019-08-28 | 2019-08-28 | Heat exchange tube, heat exchanger and heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211120811U (en) |
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2019
- 2019-08-28 CN CN201921417551.2U patent/CN211120811U/en active Active
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