CN213631740U - Parallel flow heat exchange aluminum flat tube for air conditioner - Google Patents
Parallel flow heat exchange aluminum flat tube for air conditioner Download PDFInfo
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- CN213631740U CN213631740U CN202022106744.5U CN202022106744U CN213631740U CN 213631740 U CN213631740 U CN 213631740U CN 202022106744 U CN202022106744 U CN 202022106744U CN 213631740 U CN213631740 U CN 213631740U
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Abstract
The utility model discloses a parallel flow heat exchange aluminum flat tube for an air conditioner, wherein a first vertical wall is arranged in the middle of an aluminum flat tube body along the width direction, the aluminum flat tube body is axially symmetrical along the direction of a first vertical wall center line, and a first flow through hole, a second flow through hole and a third flow through hole are sequentially arranged on one side of the first vertical wall center line; a second vertical wall is arranged between the first flow through hole and the second flow through hole, and a third vertical wall is arranged between the second flow through hole and the third flow through hole; the first flow through hole is in a first rectangle shape; the second flow through holes are octagonal, and the length of two opposite sides in the second flow through holes is equal; the upper surface and/or the lower surface of the aluminum flat tube body is/are provided with a trapezoidal bulge corresponding to the second flow through hole; the third flow through hole is a combination of a semicircle and a second rectangle. The beneficial effects of the utility model are that the second flow through hole adopts the trapezoidal bellied structure in octagonal cross-section plus aluminum flat tube body surface for increased outer wall area when the surface area of through-hole inner wall increases, improved heat exchange efficiency.
Description
Technical Field
The utility model belongs to the technical field of heat transfer aluminum flat tube, especially, relate to an idle call parallel flow heat transfer aluminum flat tube.
Background
The micro-channel aluminum flat tube is a thin-wall porous flat tubular material which is subjected to surface zinc spraying and corrosion prevention treatment by adopting a refined aluminum bar and hot extrusion, is mainly applied to an air conditioning system as a pipeline part bearing a novel environment-friendly refrigerant, and is internally provided with a channel for circulating the refrigerant so as to enable the refrigerant to circulate in the air conditioning system or a heat exchange device, thereby playing a role in heat exchange. The micro-channel aluminum flat tube is an important component which directly influences the effect of the air-conditioning heat exchanger. Because the micro-channel aluminum flat tube product has high technical content and extremely high production difficulty, only a few manufacturers produce the micro-channel aluminum flat tube product before 2010, the production technology is basically monopolized by the micro-channel aluminum flat tube product, domestic automobile air-conditioning heat exchanger manufacturers have no capacity to produce the micro-channel aluminum flat tube product, and the micro-channel aluminum flat tube product is only obtained from foreign manufacturers which master the production technology of the micro-channel aluminum flat tube product and are arranged in a domestic exclusive subsidiary company or directly imported. In recent years, domestic enterprises are continuously and deeply researching and developing the micro-channel aluminum flat tubes, a large number of domestic micro-channel aluminum flat tubes are put on the market, and the cross-sectional structures of a plurality of micro-channel aluminum flat tubes are known to the public and technical staff through patent documents.
Chinese patent application, application number cn201520242630.x, application date 2015.04.21, grant notice number CN204666006U, grant notice date 2015.09.23, disclose heterotypic flat aluminum pipe structure, including the flat aluminum pipe body, the middle part of flat aluminum pipe body is provided with the baffle, the baffle falls into first half and the latter half with flat aluminum pipe body is inside, is located first half and the latter half and all is provided with a plurality of passageways of parallel spaced, and each passageway is from left the structure of turning right in proper order and is: the structure comprises an oval structure, a pentagonal structure, an isosceles triangular structure, an isosceles trapezoid structure, a crossed structure, a rectangular structure and a circular structure, wherein a plurality of arc structures are arranged on the upper wall surface and the lower wall surface of the rectangular structure; the channels in the upper half correspond to the channels in the lower half.
Chinese patent application, application number CN201520242619.3, application date 2015.04.21, publication number CN204666005U, publication number 2015.09.23, disclose parallel flow zinc-sprayed aluminum flat tube, including aluminum flat tube body, the cross-section of aluminum flat tube body grows up circular structure, the inside of aluminum flat tube body is provided with thirteen parallel spaced channels, the inside of channel becomes the internal spline structure, is provided with eight internal spline teeth on the inner circumferential surface of single channel.
Chinese patent application, application No. CN201220636609.4, application date 2012.11.28, grant publication No. CN202947516U, grant publication date 2013.05.22, disclose a multi-channel aluminum flat tube for air conditioners, wherein two ends of a double-sided composite aluminum alloy plate are bent inward to form sine waveforms, and the cross sections of channels formed in the aluminum flat tube are formed by continuously arranging the sine waveforms into multiple channels, so that a refrigerant can freely flow in the multiple channels, and high-efficiency heat exchange is realized. The outer surface of the flat aluminum tube body is coated with a zinc layer. The utility model is used for the air conditioner trade.
According to the technical scheme, the channels for the circulation of the refrigerant are arranged in the micro-channel aluminum flat tubes, so that the refrigerant circulates in an air conditioning system or a heat exchange device, and the heat exchange effect is achieved. Beneficial attempts are made to improve the heat exchange efficiency of the micro-channel aluminum flat tube from the angle of increasing the heat exchange area. However, in the environment with higher and higher requirements for the performance and the service life of air-conditioning products, the requirements of the air-conditioning products are met, the sectional shapes of the products are required, and the material yield of the micro-channel aluminum flat tube is also considered comprehensively.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To among the prior art because the restriction of extrusion technology, raw and other materials, each size microchannel aluminum flat tube product under arbitrary cross sectional shape can not both the design production, and it is high to deposit just rejection rate, and manufacturing cost is high, and the finished product can't satisfy special environment's harsh operation requirement scheduling problem, the utility model aims to provide an idle call parallel flow heat transfer aluminum flat tube optimizes microchannel aluminum flat tube cross sectional shape design, cooperates current extrusion technology condition, improves the lumber recovery, reduces the rejection rate, reduction in production cost, and furthest satisfies special environment's harsh operation requirement, has certain market competition.
2. Technical scheme
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a parallel flow heat exchange aluminum flat tube for an air conditioner comprises an aluminum flat tube body and a zinc spraying coating, wherein the zinc spraying coating is arranged on the outer surface of the aluminum flat tube body; a second vertical wall is arranged between the first flow through hole and the second flow through hole, and a third vertical wall is arranged between the second flow through hole and the third flow through hole; the first flow through hole is in a first rectangle shape; the second flow through holes are octagonal, and the length of two opposite sides in the second flow through holes is equal; the upper surface and/or the lower surface of the aluminum flat tube body is/are provided with trapezoidal bulges corresponding to the second flow through hole; the third flow through hole is a combination of a semicircle and a second rectangle, the diameter edge of the semicircle is connected with one edge of the first rectangle, side arcs are arranged at two ends of the aluminum flat tube body in the width direction, and the semicircle and the side arcs are concentric.
In a specific embodiment of the present invention, the second flow hole has a regular octagon shape.
In a specific embodiment of the present invention, the second flow hole has a non-regular octagon shape, wherein six sides have equal lengths.
The utility model discloses a concrete embodiment, two crossing limits of first flow through-hole use fillet transitional coupling, and two crossing limits of second flow through-hole use fillet transitional coupling, and two crossing limits of third flow through-hole use fillet transitional coupling.
In a specific embodiment of the present invention, the zinc spraying amount of the zinc spraying coating is 8 +/-2 g/m2。
In a specific embodiment of the utility model, the tensile strength of idle call parallel flow heat transfer aluminum flat tube is more than or equal to 75MPa, and yield strength is more than or equal to 20MPa, and the percentage elongation is more than or equal to 25%.
Aiming at the parallel flow heat exchange aluminum flat tube for the air conditioner disclosed by the utility model, an extrusion die is arranged in an extruder, and the parallel flow heat exchange aluminum flat tube for the air conditioner is obtained by extrusion forming, surface zinc spraying anti-corrosion treatment and cooling of a refined aluminum bar, and is straightened and cut to length, so that the micro-channel aluminum flat tube applied to an air conditioning system is finally obtained, the surface of the aluminum flat tube body has no obvious flow mark, bump, air hole, slag inclusion and crack defects, and the inner surface has no scratch and indentation defects; the notch has no burr, and the inner part and the outer part of the aluminum flat tube are clean and have no burr.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that: the outer surface of the aluminum flat tube body is provided with the sprayed zinc layer, so that the corrosion resistance of the aluminum flat tube can be effectively improved, and the service life of the aluminum flat tube is prolonged; the second flow through hole adopts a structure of adding trapezoidal bulges on the surface of the aluminum flat tube body to the octagonal cross section, so that the surface area of the inner wall of the through hole is increased, the area of the outer wall is increased, the contact area of a unit through hole is increased, the contact efficiency of a refrigerant is improved, and the heat exchange efficiency of the refrigerant is improved; each structure to the aluminum flat tube body has carried out the injecing of size, and is rational in infrastructure, can not lead to the waste of material because of the size is too big, and the lumber recovery is high, reduces manufacturing cost, satisfies the user demand.
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 the utility model discloses along aluminum flat tube body width direction section structure schematic diagram.
In the figure: 1-aluminum flat tube body 2-first vertical wall 3-first flow through hole 4-second flow through hole 5-third flow through hole 6-second vertical wall 7-third vertical wall 8-upper surface 9-lower surface 10-trapezoidal bulge 11-semicircle 12-second rectangle 13-fillet 14-side circular arc.
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 utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.
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 simplicity of description, and 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.
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 interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; 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 utility model can be understood in specific cases to those of ordinary skill in the art.
As shown in fig. 1, a parallel flow heat exchange aluminum flat tube for an air conditioner comprises an aluminum flat tube body 1 and a zinc spray coating (not marked in the figure), wherein the zinc spray coating is arranged on the outer surface of the aluminum flat tube body 1, and is characterized in that a first vertical wall 2 is arranged in the middle of the aluminum flat tube body 1 along the width direction, the aluminum flat tube body 1 is axisymmetric along the direction of the center line of the first vertical wall 2, and a first flow through hole 3, a second flow through hole 4 and a third flow through hole 5 are sequentially arranged on one side of the center line of the first vertical wall 2; a second vertical wall 6 is arranged between the first flow through hole 3 and the second flow through hole 4, and a third vertical wall 7 is arranged between the second flow through hole 4 and the third flow through hole 5; the first flow through hole 3 is in a first rectangle shape; the second through holes 4 are octagonal, and the length of two opposite sides in the second through holes 4 is equal; the upper surface 8 and/or the lower surface 9 of the aluminum flat tube body 1 are/is provided with a trapezoidal protrusion 10 corresponding to the second flow through hole 4; the third flow through hole 5 is a combination of a semicircle 11 and a second rectangle 12, the diameter side of the semicircle 11 is connected with one side of the first rectangle, side arcs 14 are arranged at two ends of the aluminum flat tube body 1 in the width direction, and the semicircle 11 and the side arcs 14 are concentric.
The second flow through hole 4 has a regular octagonal shape.
The second through-flow hole 4 is in a non-regular octagon shape, wherein six sides are equal in length.
Two intersecting edges of the first flow through hole 3 are in transition connection by using a fillet 13, two intersecting edges of the second flow through hole 4 are in transition connection by using a fillet 13, and two intersecting edges of the third flow through hole 5 are in transition connection by using a fillet 13.
The zinc spraying amount of the zinc spraying coating is 8 +/-2 g/m2。
The tensile strength of the parallel flow heat exchange aluminum flat tube for the air conditioner is more than or equal to 75MPa, the yield strength is more than or equal to 20MPa, and the elongation is more than or equal to 25%.
Aiming at the utility model discloses an idle call parallel flow heat transfer aluminum flat tube designs extrusion die, installs extrusion die in the extruder, obtains through extrusion to the concise aluminium bar, the surface spouts zinc anticorrosive treatment, cools off the utility model discloses an idle call parallel flow heat transfer aluminum flat tube straightens and cut to length to it, finally obtains the microchannel aluminum flat tube who uses in air conditioning system, and aluminum flat tube body 1 surface does not have obvious flow mark, lump, gas pocket, slag inclusion, crack defect, and the internal surface does not have scotch, indentation defect; the notch has no burr, and the inner part and the outer part of the aluminum flat tube are clean and have no burr.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides an idle call parallel flow heat transfer aluminum flat tube, includes aluminum flat tube body and spouts the zinc coating, spout the zinc coating setting at the surface of aluminum flat tube body, its characterized in that: the middle part of the aluminum flat tube body along the width direction is provided with a first vertical wall, the aluminum flat tube body is axially symmetrical along the direction of the center line of the first vertical wall, and a first flow through hole, a second flow through hole and a third flow through hole are sequentially arranged on one side of the center line of the first vertical wall; a second vertical wall is arranged between the first flow through hole and the second flow through hole, and a third vertical wall is arranged between the second flow through hole and the third flow through hole; the first flow through hole is in a first rectangle shape; the second flow through holes are octagonal, and the length of two opposite sides in the second flow through holes is equal; the upper surface and/or the lower surface of the aluminum flat tube body is/are provided with trapezoidal bulges corresponding to the second flow through hole; the third flow through hole is a combination of a semicircle and a second rectangle, the diameter edge of the semicircle is connected with one edge of the first rectangle, side arcs are arranged at two ends of the aluminum flat tube body in the width direction, and the semicircle and the side arcs are concentric.
2. The parallel flow heat exchange aluminum flat tube for the air conditioner as claimed in claim 1, wherein: the second flow through hole is in a regular octagon shape.
3. The parallel flow heat exchange aluminum flat tube for the air conditioner as claimed in claim 1, wherein: the second through hole is in a non-regular octagon shape, and the lengths of six sides of the second through hole are equal.
4. The parallel flow heat exchange aluminum flat tube for the air conditioner as claimed in claim 2 or 3, wherein: two intersecting sides of the first flow through hole are in transition connection through a fillet, two intersecting sides of the second flow through hole are in transition connection through a fillet, and two intersecting sides of the third flow through hole are in transition connection through a fillet.
5. The parallel flow heat exchange aluminum flat tube for the air conditioner as claimed in claim 4, wherein: the zinc spraying amount of the zinc spraying coating is 8 +/-2 g/m2。
6. The parallel flow heat exchange aluminum flat tube for the air conditioner as claimed in claim 4, wherein: the tensile strength of the parallel flow heat exchange aluminum flat tube for the air conditioner is more than or equal to 75MPa, the yield strength is more than or equal to 20MPa, and the elongation is more than or equal to 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106744.5U CN213631740U (en) | 2020-09-23 | 2020-09-23 | Parallel flow heat exchange aluminum flat tube for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106744.5U CN213631740U (en) | 2020-09-23 | 2020-09-23 | Parallel flow heat exchange aluminum flat tube for air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN213631740U true CN213631740U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022106744.5U Active CN213631740U (en) | 2020-09-23 | 2020-09-23 | Parallel flow heat exchange aluminum flat tube for air conditioner |
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| CN (1) | CN213631740U (en) |
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