CN118089460A - Heat exchange micro-channel aluminum flat tube - Google Patents
Heat exchange micro-channel aluminum flat tube Download PDFInfo
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- CN118089460A CN118089460A CN202410350655.5A CN202410350655A CN118089460A CN 118089460 A CN118089460 A CN 118089460A CN 202410350655 A CN202410350655 A CN 202410350655A CN 118089460 A CN118089460 A CN 118089460A
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- Prior art keywords
- heat exchange
- aluminum flat
- flat tube
- along
- spacers
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 61
- 125000006850 spacer group Chemical group 0.000 claims abstract description 70
- 239000004411 aluminium Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 abstract description 41
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of heat exchange aluminum flat tubes, in particular to a heat exchange micro-channel aluminum flat tube, which comprises a tube shell, wherein a plurality of spacers are sequentially arranged in the tube shell along a first direction, each spacer is in a curved surface shape, and a medium channel is defined between two spacers adjacently arranged along the first direction and two inner wall surfaces of the tube shell along a second direction. According to the heat exchange micro-channel aluminum flat tube, the plurality of spacers are arranged in the tube shell, and the medium channels with the quadrilateral shapes are defined in the tube shell through the spacers, so that the heat exchange area of the aluminum flat tube is increased, the heat exchange efficiency of the whole aluminum flat tube is improved, the change condition of the cross section area of each medium channel at the bending position after bending tends to be consistent, and the consistency of the flow in each medium channel at the bending position after bending is improved.
Description
Technical Field
The invention relates to the technical field of heat exchange aluminum flat tubes, in particular to a heat exchange micro-channel aluminum flat tube.
Background
The micro-channel aluminum flat tube is a thin-wall porous flat tubular material which is formed by adopting a refined aluminum bar, hot extrusion and surface zinc spraying corrosion prevention treatment, is mainly applied to air conditioning systems of various coolants, is used as a pipeline part for bearing novel environment-friendly coolants, and is a key material of a new generation of parallel flow micro-channel air conditioning heat exchangers.
In an environment with higher and higher requirements on performance and service life of an air conditioner product, the performance of the aluminum flat tube product must be improved, a structural schematic diagram of an aluminum flat tube body 600 commonly used in the prior art is shown in fig. 5, the aluminum flat tube body 600 in the prior art has a single structure, the overall stability of the aluminum flat tube body 600 is poor, and the use requirement cannot be met.
Disclosure of Invention
The invention provides a heat exchange micro-channel aluminum flat tube, which increases the heat exchange area of the aluminum flat tube by changing the internal structure of the aluminum flat tube, and can improve the uniformity degree of volume change of each medium channel in the aluminum flat tube after bending when the aluminum flat tube is integrally bent, so as to solve the problems that the existing aluminum flat tube is single in structure, small in heat exchange area and low in heat exchange efficiency, and deformation degree of bending parts is different when the aluminum flat tube is bent, and further the integral heat exchange performance of the bent aluminum flat tube is affected.
The invention discloses a heat exchange micro-channel aluminum flat tube, which adopts the following technical scheme: the utility model provides a heat transfer microchannel aluminum flat tube, includes the tube shell, has set gradually a plurality of spacers along first direction in the tube shell, and first direction is the direction perpendicular with the axis direction of tube shell, and a plurality of spacers are curved surface shape, and the spacer has convex surface and concave surface, and the convex surface side of every spacer all sets gradually in first direction with the concave surface side of its adjacent another spacer; a medium channel is defined between two spacers and the tube shell, wherein the two spacers are adjacently arranged along the first direction, the two inner wall surfaces of the tube shell are arranged along the second direction, the medium channel is of a quadrilateral structure, the lengths of two sides of the medium channel along the second direction are different, and the second direction is perpendicular to the first direction and the axis direction of the tube shell respectively.
Further, two media channels adjacently arranged along the first direction are distributed in a central symmetry manner.
Further, two inner wall surfaces of the tube shell along the first direction are respectively called a first inner wall surface and a second inner wall surface, and two ends of the plurality of spacers along the second direction are respectively fixedly installed on the first inner wall surface and the second inner wall surface.
Further, two sides of the medium passage in the second direction are referred to as a first side and a second side, respectively, and the length of the first side is smaller than that of the second side.
Further, the wall thickness of the first and second sides is equal.
Further, a first edge of each medium channel is provided with a flow disturbing groove.
Further, a second side of each medium channel is provided with a flow disturbing groove.
Further, the cross section of the spoiler groove perpendicular to the second direction is rectangular.
Further, the two inner wall surfaces of the tube shell along the second direction are respectively called a third inner wall surface and a fourth inner wall surface, a circulation channel is respectively defined between the third inner wall surface and the adjacent spacer along the first direction and between the fourth inner wall surface and the adjacent spacer along the first direction, and the two circulation channels are respectively communicated with the adjacent medium channels.
Further, the number of the spacers is seven, and six medium channels are formed in the tube shell.
The beneficial effects of the invention are as follows: according to the heat exchange micro-channel aluminum flat tube, the plurality of spacers are arranged in the tube shell, the medium channel with the quadrangular shape is limited in the tube shell through the spacers, and the length of the medium channel along the two sides in the second direction is further limited to be unequal, so that the medium channel is approximately in a trapezoid structure, the local heat exchange area of the aluminum flat tube is increased through the medium channel with the trapezoid structure, and the heat exchange efficiency of the whole aluminum flat tube is improved.
Further, the shape of a plurality of spacers is set to be curved surface shape, and the convex side of each spacer is sequentially set on the first direction with the concave side of another adjacent spacer, so that the spacers are bent towards the same side, and when the aluminum flat tube is required to be bent in use, the bending Qu Fangxiang of the spacer during bending is determined in advance through the bending towards the same side, and the consistency of the change degree of the inner cross sectional area of each medium channel at the bending position is improved during bending. That is, when bending, the convex surface of the spacer at the bending position has a tendency to move along the first direction to the concave surface of the other spacer adjacent to the convex surface, and the change condition of the cross-sectional area of each medium channel at the bending position after bending tends to be consistent, so that the consistency of the flow in each medium channel at the bending position after bending is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of a heat exchange microchannel aluminum flat tube of the present invention;
FIG. 2 is a schematic view of a portion of an embodiment of a heat exchange microchannel aluminum flat tube according to the present invention;
FIG. 3 is a front view of the overall structure of an embodiment of a heat exchange microchannel aluminum flat tube of the present invention;
FIG. 4 is a schematic view showing an installation state of an embodiment of a heat exchange micro-channel aluminum flat tube according to the present invention;
fig. 5 is a schematic structural diagram of a heat exchange micro-channel aluminum flat tube in the prior art.
In the figure: 100. a tube shell; 200. a spacer; 201. a concave surface; 202. a convex surface; 300. a media channel; 310. a flow disturbing groove; 400. a flow channel; 500. a fin; 600. a tube body.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of a heat exchange microchannel aluminum flat tube of the present invention is shown in fig. 1-4.
The utility model provides a heat transfer microchannel aluminum flat tube, is abbreviated as aluminum flat tube hereinafter, includes tube shell 100, and tube shell 100's cross section is oval, has set gradually a plurality of spacers 200 along first direction in the tube shell 100, and first direction is the direction perpendicular with tube shell 100's axis direction, and a plurality of spacers 200 are curved surface shape, and spacer 200 has convex surface 202 and concave surface 201, and the convex surface 202 one side of every spacer 200 all sets gradually in first direction with the concave surface 201 one side of its adjacent another spacer 200. The two spacers 200 disposed adjacently along the first direction and the two inner wall surfaces of the package 100 along the second direction define a medium passage 300 therebetween, the medium passage 300 has a quadrangular structure, and the lengths of the two sides of the medium passage 300 along the second direction are not equal. The second direction is perpendicular to the first direction and the axial direction of the envelope 100, respectively.
According to the embodiment, the plurality of spacers 200 are arranged in the tube shell 100, the medium channel 300 with the quadrangular shape is defined in the tube shell 100 through the spacers 200, and the lengths of the two sides of the medium channel 300 along the second direction are further limited to be unequal, so that the medium channel 300 is approximately in a trapezoid structure, the local heat exchange area of the aluminum flat tube is enlarged by the medium channel 300 with the trapezoid structure, and the heat exchange efficiency of the whole aluminum flat tube is improved.
And set the shape of a plurality of spacers 200 to curved surface shape, through making the convex surface 202 side of every spacer 200 all set gradually in first direction with the concave surface 201 side of another spacer 200 that is adjacent to it, and then make a plurality of spacers 200 all bend towards same side setting, and then in the use, when needs bend the flat pipe of aluminium, through making it bend towards same side setting, the crook Qu Fangxiang of spacer 200 when confirming in advance to buckle, and then improve the uniformity of the cross-sectional area change degree in each medium passageway 300 of department of buckling when buckling. That is, when bending, the convex surface 202 of the spacer 200 at the bending position has a tendency to move along the first direction toward the concave surface 201 of another spacer 200 adjacent to the convex surface, and the change condition of the cross-sectional area of each medium channel 300 at the bending position after bending tends to be consistent, so that the consistency of the flow in each medium channel 300 at the bending position after bending is improved, while the spacers 200 in the prior art are all arranged perpendicular to the direction of the cross-sectional area and define a plurality of square medium channels 300 inside the spacers, when bending, the change condition of the cross-sectional area of each medium channel 300 at the bending position after bending cannot be ensured due to the fact that the curve Qu Fangxiang of each spacer 200 cannot be determined, and finally, the change of the cross-sectional area of each medium channel 300 at the bending position is different, and the flow in each medium channel 300 at the bending position after bending is inconsistent, so that the heat exchange effect and heat exchange efficiency are affected.
In this embodiment, the number of spacers 200 is seven, six medium channels 300 are provided in the cartridge 100, and two medium channels 300 disposed adjacently in the first direction are distributed in a central symmetry.
Specifically, the two inner wall surfaces of the envelope 100 along the first direction are respectively referred to as a first inner wall surface and a second inner wall surface, and the two ends of the plurality of spacers 200 along the second direction are respectively fixedly mounted on the first inner wall surface and the second inner wall surface, and are integrally formed.
The two inner wall surfaces of the cartridge 100 in the second direction are referred to as a third inner wall surface and a fourth inner wall surface, respectively, and a flow passage 400 is defined between the third inner wall surface and the spacer 200 adjacent thereto in the first direction and between the fourth inner wall surface and the spacer 200 adjacent thereto in the first direction, respectively, and the two flow passages 400 are respectively communicated with the medium passages 300 adjacent thereto.
Two sides of the medium passage 300 in the second direction are referred to as a first side and a second side, respectively, and the length of the first side is smaller than that of the second side. A first side of each media channel 300 is provided with a flow-disturbing groove 310. Or the second side of each medium channel 300 is provided with a flow-disturbing groove 310, and the wall thicknesses of the first side and the second side in the second direction are equal.
Specifically, the cross section of the spoiler 310 perpendicular to the second direction is rectangular, or the cross section of the spoiler 310 perpendicular to the second direction is fan-shaped.
Through further setting up the chute 310, can additionally increase heat transfer area when fluid passes through, and then improve heat exchange efficiency to when installing a plurality of flat pipes of aluminium, can produce the turbulent flow through the setting of chute 310 to the fluid between two adjacent flat pipes of aluminium, destroy the thermal boundary layer of fluid, improved heat exchange efficiency. And through making the wall thickness of first limit and second limit in first direction equal, guarantee that the heat exchange efficiency of first limit and second limit equals, and when the installation, the installation of aluminum flat tube is as shown with reference to fig. 4, all is provided with a fin 500 between every two aluminum flat tubes that set up adjacently along the second direction, when using, can with fin 500 and the mutual joint of aluminum flat tube, and then fix a position fin 500, both can regard as the fixed knot of fin 500 to construct, can regard as the auxiliary positioning structure before aluminum flat tube and fin 500 braze welding again.
In combination with the above embodiment, the working principle is as follows:
In use, after the plurality of aluminum flat tubes are matched with the plurality of fins 500, fluid enters one medium channel 300 adjacent to one medium channel 400 from the plurality of aluminum flat tubes after being installed, and flows out from the other medium channel 400 after circulating in the plurality of medium channels 300, so that heat exchange is completed. In the process of fluid circulation, fluid passes through the medium channel 300 with the trapezoid structure, and the medium channel 300 with the trapezoid structure increases the heat exchange area of the aluminum flat tube, and improves the heat exchange efficiency of the whole aluminum flat tube.
And set the shape of a plurality of spacers 200 to curved surface shape, through making the convex surface 202 side of every spacer 200 all set gradually in first direction with the concave surface 201 side of another spacer 200 that is adjacent to it, and then make a plurality of spacers 200 all bend towards same side setting, and then in the use, when needs bend the flat pipe of aluminium, through making it bend towards same side setting, the crook Qu Fangxiang of spacer 200 when confirming in advance to buckle, and then improve the uniformity of the cross-sectional area change degree in each medium passageway 300 of department of buckling when buckling. That is, when bending, the convex surface 202 of the spacer 200 at the bending position has a tendency to move along the first direction toward the concave surface 201 of another spacer 200 adjacent to the convex surface, and the change condition of the cross-sectional area of each medium channel 300 at the bending position after bending tends to be consistent, so that the consistency of the flow in each medium channel 300 at the bending position after bending is improved, while the spacers 200 in the prior art are all arranged perpendicular to the direction of the cross-sectional area and define medium channels 300 in multiple directions inside the spacers, and when bending, the change condition of the cross-sectional area of each medium channel 300 at the bending position after bending cannot be ensured due to the fact that the curve Qu Fangxiang of each spacer 200 cannot be determined, the change of the cross-sectional area of each medium channel 300 at the bending position is different finally, and the flow in each medium channel 300 at the bending position after bending is inconsistent, so that the heat exchange effect and heat exchange efficiency are affected.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a heat transfer microchannel aluminium flat tube which characterized in that: the device comprises a tube shell, wherein a plurality of spacers are sequentially arranged in the tube shell along a first direction, the first direction is a direction perpendicular to the axis direction of the tube shell, the spacers are all in a curved surface shape, each spacer is provided with a convex surface and a concave surface, and one side of the convex surface of each spacer is sequentially arranged on one side of the concave surface of another spacer adjacent to the convex surface of each spacer along the first direction; a medium channel is defined between two spacers and the tube shell, wherein the two spacers are adjacently arranged along the first direction, the two inner wall surfaces of the tube shell are arranged along the second direction, the medium channel is of a quadrilateral structure, the lengths of two sides of the medium channel along the second direction are different, and the second direction is perpendicular to the first direction and the axis direction of the tube shell respectively.
2. The heat exchange microchannel aluminum flat tube as set forth in claim 1, wherein: two medium channels adjacently arranged along the first direction are distributed in a central symmetry manner.
3. The heat exchange microchannel aluminum flat tube as set forth in claim 1, wherein: the two inner wall surfaces of the tube shell along the first direction are respectively called a first inner wall surface and a second inner wall surface, and two ends of the plurality of spacers along the second direction are respectively fixedly arranged on the first inner wall surface and the second inner wall surface.
4. The heat exchange microchannel aluminum flat tube as set forth in claim 1, wherein: two sides of the medium channel along the second direction are respectively called a first side and a second side, and the length of the first side is smaller than that of the second side.
5. The heat exchange microchannel aluminum flat tube as set forth in claim 4, wherein: the wall thickness of the first and second sides is equal.
6. The heat exchange microchannel aluminum flat tube as set forth in claim 5, wherein: a first side of each medium channel is provided with a flow disturbing groove.
7. The heat exchange microchannel aluminum flat tube as set forth in claim 5, wherein: and a second side of each medium channel is provided with a flow disturbing groove.
8. A heat exchange microchannel aluminum flat tube according to claim 6 or 7, wherein: the cross section of the flow-disturbing groove perpendicular to the second direction is rectangular.
9. The heat exchange microchannel aluminum flat tube as set forth in claim 1, wherein: the two inner wall surfaces of the pipe shell along the second direction are respectively called a third inner wall surface and a fourth inner wall surface, a circulation channel is respectively limited between the third inner wall surface and the adjacent spacer along the first direction and between the fourth inner wall surface and the adjacent spacer along the first direction, and the two circulation channels are respectively communicated with the adjacent medium channels.
10. The heat exchange microchannel aluminum flat tube as set forth in claim 1, wherein: the number of the spacers is seven, and six medium channels are arranged in the tube shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410350655.5A CN118089460A (en) | 2024-03-26 | 2024-03-26 | Heat exchange micro-channel aluminum flat tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410350655.5A CN118089460A (en) | 2024-03-26 | 2024-03-26 | Heat exchange micro-channel aluminum flat tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118089460A true CN118089460A (en) | 2024-05-28 |
Family
ID=91145539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410350655.5A Pending CN118089460A (en) | 2024-03-26 | 2024-03-26 | Heat exchange micro-channel aluminum flat tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118089460A (en) |
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2024
- 2024-03-26 CN CN202410350655.5A patent/CN118089460A/en active Pending
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