CN217383880U - Micro-channel heat exchanger - Google Patents

Micro-channel heat exchanger Download PDF

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Publication number
CN217383880U
CN217383880U CN202220403404.5U CN202220403404U CN217383880U CN 217383880 U CN217383880 U CN 217383880U CN 202220403404 U CN202220403404 U CN 202220403404U CN 217383880 U CN217383880 U CN 217383880U
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Prior art keywords
flat
pipe
heat exchanger
fin
fins
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CN202220403404.5U
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Chinese (zh)
Inventor
魏文建
王冠军
丁二刚
朱丽星
吴振鑫
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Zhejiang Dunan Thermal Technology Co Ltd
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Zhejiang Dunan Thermal Technology Co Ltd
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Publication of CN217383880U publication Critical patent/CN217383880U/en
Priority to PCT/CN2022/129911 priority Critical patent/WO2023078399A1/en
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Abstract

The utility model relates to a refrigeration technology field especially relates to microchannel heat exchanger. A microchannel heat exchanger comprises a plurality of fins and a plurality of flat tubes, wherein the plurality of fins are arranged in parallel to form a plurality of rows, inserting grooves are formed in the fins, the flat tubes are arranged in parallel to form a plurality of layers, and the flat tubes are arranged in the inserting grooves in a penetrating manner; the micro-channel heat exchanger further comprises a distributor and a switching tube, wherein a plurality of capillary tubes are arranged on the distributor, one end of the switching tube is communicated with the capillary tubes, and the other end of the switching tube is communicated with the flat tubes. The utility model has the advantages that: the medium enters the flat pipe after being uniformly distributed in the distributor, the distributor is utilized to replace the traditional collecting pipe, the process can be simplified, and if the flow needs to be changed, only the proper distributor needs to be selected and the number of the capillary tubes needs to be reduced.

Description

Micro-channel heat exchanger
Technical Field
The utility model relates to a refrigeration technology field especially relates to microchannel heat exchanger.
Background
The micro-channel heat exchanger is designed to meet the needs of industrial development, and is compact, light and efficient.
The two ends of a flat pipe of the existing micro-channel heat exchanger are provided with two collecting pipes, the inlet and the outlet of the flat pipe are communicated with the collecting pipes, and the collecting pipes need to be provided with a plurality of flat pipe grooves, so that the collecting pipes are difficult to process.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for a microchannel heat exchanger that can simplify the processing difficulties.
A microchannel heat exchanger comprises a plurality of fins and a plurality of flat tubes, wherein the plurality of fins are arranged in parallel to form a plurality of rows, inserting grooves are formed in the fins, the flat tubes are arranged in parallel to form a plurality of layers, and the flat tubes are arranged in the inserting grooves in a penetrating manner; the microchannel heat exchanger further comprises a distributor and a switching tube, wherein a plurality of capillary tubes are arranged on the distributor, one end of the switching tube is communicated with the capillary tubes, and the other end of the switching tube is communicated with the flat tubes.
It can be understood that the medium enters the flat pipe after being uniformly distributed in the distributor, the distributor is used for replacing the traditional collecting pipe, the process can be simplified, and if the flow needs to be changed, only the proper distributor needs to be selected and the number of the capillary tubes needs to be reduced.
In one embodiment, the adapter tube is adapted to the mouth of the flat tube toward the mouth of the flat tube, and one end of the flat tube extends into the adapter tube.
So set up, can strengthen the welding strength between flat pipe and the switching pipe.
In one embodiment, the adapter tube has a width W toward the mouth of the flat tube 1 Pipe mouth W larger than flat pipe 2 Width, and height H of the adapter tube facing the mouth of the flat tube 1 Height H larger than pipe orifice of flat pipe 2
So set up for the one end of flat pipe can insert smoothly in the adapter tube.
In one embodiment, the number of the flat tubes is at least two, the microchannel heat exchanger further comprises a plurality of bent tubes, the flat tubes in adjacent rows are communicated through the bent tubes, and the bent tubes and the flat tubes are arranged in a split manner; and/or the flat pipes in the same row are communicated through the bent pipe, and the bent pipe and the flat pipes are arranged in a split mode.
So set up, realize the turn of medium through the return bend, then the flat pipe need not to bend, can alleviate the deformation problem of fin.
In one embodiment, the microchannel heat exchanger includes a collecting pipe, the flat pipes include at least a first row of flat pipes and a second row of flat pipes, the first row of flat pipes and the second row of flat pipes are arranged in parallel, the first row of flat pipes are connected to the adapter pipe, and the second row of flat pipes are connected to the collecting pipe;
or, the flat pipes are in a row, one end of each flat pipe is connected to the corresponding adapter pipe, and the other end of each flat pipe is connected to the corresponding collecting pipe.
So set up, can collect the medium with the exit linkage pressure manifold of flat pipe.
In one embodiment, a plurality of first protrusions are arranged on the fin, and the first protrusions are circular, crescent, triangular, square, S-shaped or corrugated.
So set up, can strengthen the intensity of fin, alleviate the deformation problem of fin.
In one embodiment, the first protrusion is provided with a strip slit, and the strip slit penetrates through the surface of the fin to form an air passing channel.
So set up, the turbulent flow of reinforcing wind to strengthen the heat transfer effect.
In one embodiment, the fin has a first side and a second side, a side surface of the fin close to the first side has a plurality of second protrusions, the plurality of second protrusions are sequentially distributed along a width direction of the fin to form a corrugated structure, and two ends of the corrugated structure respectively extend towards two sides of the fin in a length direction and penetrate through two ends of the fin.
It can be understood that the corrugated structure is beneficial to drainage, and can prevent the condensate water from being discharged in time to cause frosting, thereby influencing the heat exchange effect.
In one embodiment, the fin includes a body portion and a flange structure connected to each other, the socket slot is disposed on the body portion, the flange structure is disposed at the socket slot, the flange structure protrudes from the body portion, and at least a portion of the flange structure abuts against a side surface of the flat tube.
So set up, can strengthen the welding strength of flat pipe and fin.
In one embodiment, the fins include at least two rows, each row of the fins includes a plurality of rows of fins arranged at intervals, the fins in the same row of the two rows of the fins are arranged in a split manner, and the inserting slots in the same row of the fins are arranged in a staggered manner.
So set up, the medium in the flat pipe not only can utilize the fin heat transfer of inserting groove both sides, can also utilize the fin heat transfer at flat pipe rear, and make full use of fin strengthens the heat transfer effect.
Compared with the prior art, the utility model provides a microchannel heat exchanger, capillary and switching union coupling distributor are passed through to the one end of flat pipe and are replaced the pressure manifold, can simplify technology.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the conventional technologies, the drawings required to be used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a microchannel heat exchanger provided by the present invention;
FIG. 2 is a perspective view of another perspective of a microchannel heat exchanger;
FIG. 3 is a schematic structural view of the adapter tube;
FIG. 4 is a schematic view of a fin structure according to an embodiment;
FIG. 5 is a schematic view of a fin structure in another embodiment;
FIG. 6 is a schematic view of a fin structure in yet another embodiment;
FIG. 7 is a schematic view of a fin structure in a further embodiment;
FIG. 8 is a schematic view of a fin structure provided with second protrusions;
fig. 9 is a schematic view of the structure when two rows of fins abut.
The symbols in the drawings represent the following meanings:
100. a microchannel heat exchanger; 10. a fin; 11. connecting a slot; 12. a first side; 13. a second side; 14. A first protrusion; 15. strip sewing; 16. a second protrusion; 17. a body portion; 18. a flanging structure; 181. a first flanging; 182. second flanging; 183. third flanging; 20. flat tubes; 21. a first row of flat tubes; 22. a second row of flat tubes; 30. a dispenser; 31. a capillary tube; 40. a transfer tube; 50. bending the pipe; 60. a header.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The use of the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions in the description of the invention is for illustrative purposes only and does not represent a unique embodiment.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may mean that the first feature is directly in contact with the second feature or that the first feature and the second feature are indirectly in contact with each other through an intermediate medium. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and fig. 2, the utility model provides a microchannel heat exchanger 100 is installed in a refrigeration system, and a medium flows in the microchannel heat exchanger 100, and the microchannel heat exchanger 100 assists the medium to exchange heat with the outside world.
Specifically, microchannel heat exchanger 100 includes multi-disc fin 10 and many flat pipes 20, and multi-disc fin 10 is parallel and the interval sets up in order to form multirow fin 10, and many flat pipes 20 parallel arrangement are in order to form multilayer flat pipe 20, have seted up on the fin 10 and have connect slot 11, and flat pipe 20 wears to locate in connecing slot 11. It should be explained that, the utility model discloses a multirow fin 10 indicates, along flat pipe 20's length direction, fin 10 arranges into the multirow, and flat pipe 20 of multilayer indicates along microchannel heat exchanger 100's direction of height, and many flat pipes 20 parallel set up to the multilayer, and multiseriate below indicates, along microchannel heat exchanger 100's width direction, multiseriate around flat pipe 20 and fin 10 arrange into respectively.
Fin 10 sets up with flat pipe 20 is perpendicular for when the installation, can do benefit to the drainage with the vertical setting of fin 10, prevent frosting on the fin 10 and influence the heat transfer effect.
Fin 10 has first side 12 and second side 13, and first side 12 is close to the windward side, and the one end that connects slot 11 runs through second side 13, when the installation, packs in flat pipe 20 from first side 12, can protect fin 10, because fin 10 is thinner, packs in flat pipe 20 from one side, can prevent that fin 10 warp.
The joint insertion groove 11 is chamfered or rounded between the inner wall of the notch near the second side 13 and the side surface of the second side 13, so that the flat pipe 20 can be inserted into the joint insertion groove 11 more smoothly.
The fin 10 is provided with a plurality of first protrusions 14, and the first protrusions 14 can strengthen the strength of the fin 10 and prevent the fin 10 from deforming.
Referring to fig. 4, in an embodiment, the first protrusion 14 is a plurality of first protrusions 14, and the plurality of first protrusions 14 are sequentially arranged to form a corrugated shape.
Referring to fig. 5, in another embodiment, the first protrusion 14 is circular.
Referring to fig. 6, in another embodiment, the first protrusion 14 has a crescent shape.
Referring to fig. 7, in another embodiment, the first protrusion 14 has a square shape.
Preferably, the first protrusions 14 are corrugated to provide not only reinforcement but also drainage.
In other embodiments, the first protrusion 14 may also be S-shaped, triangular, etc.
Optionally, the corrugated first protrusion 14 extends from one end of the fin 10 to the other end, and is truncated at the socket 11 to enhance drainage.
Referring to fig. 7, the first protrusion 14 is provided with a strip slit 15, and the strip slit 15 penetrates through two side surfaces of the fin 10 to form an air passing channel, so that air can be blown from the current fin 10 to the adjacent fin 10 through the strip slit 15, thereby enhancing turbulence and enhancing heat exchange effect.
Preferably, the slits 15 are opened at both sides of the first protrusion 14, and wind can be blown in or blown out along the slits 15 at the side of the first protrusion 14.
Referring to fig. 8 and 9, the fin 10 is vertically installed, a side surface of the fin 10 close to the first side 12 is provided with a plurality of second protrusions 16, the plurality of second protrusions 16 are sequentially distributed along the width direction of the fin 10 to form a corrugated structure, and two ends of the second protrusions 16 respectively extend towards two sides of the length direction of the fin 10 and penetrate through two ends of the fin 10. The utility model discloses a microchannel heat exchanger 100 uses as the evaporimeter, and first side 12 is close to the windward side, then forms the comdenstion water on being close to the fin 10 of first side 12 more easily, sets up the protruding 16 settings of second being close to the windward side to alleviate the problem of frosting, avoid frosting on the fin 10 and influence the heat transfer effect. It should be explained that the corrugated structure of the second protrusion 16 in the present invention means that the second protrusion 16 is a long strip, along the width direction of the fin 10, a plurality of second protrusions 16 form a wavy corrugated shape therebetween, and a drainage channel is formed between adjacent second protrusions 16. The cross-section of the second protrusion 16 may be triangular, multi-deformed, etc.
The length of the inserting groove 11 is smaller than the width of the fin 10, so that the fin 10 can be provided with a space for arranging the second protrusion 16, and the second protrusion 16 cannot be blocked by the flat pipe 20 to influence water drainage.
The fin 10 includes a main body 17 and a flange structure 18, the flange structure 18 is connected to the main body 17, and the insertion slot 11, the first protrusion 14 and the second protrusion 16 are all disposed on the main body 17. The flanging structure 18 is arranged at the socket 11, the flanging structure 18 is arranged in a protruding manner relative to the body portion 17, and the flanging structure 18 is used for being matched with the flat pipe 20. The side butt of flanging structure 18 at least part and flat pipe 20 can strengthen the welding area of fin 10 and flat pipe 20, strengthens welding strength.
Flanging structure 18 includes first turn-ups 181, and first turn-ups 181 is located and is connect slot 11 department and encircle the periphery setting of connecing slot 11, and first turn-ups 181 extends towards the length direction of flat pipe 20, and first turn-ups 181 and the side butt of flat pipe 20, and first turn-ups 181 can strengthen the welding area of fin 10 and flat pipe 20, strengthens welding strength.
Flanging structure 18 also includes second turn-ups 182, and second turn-ups 182 is connected to first turn-ups 181, and second turn-ups 182 extends towards flat pipe 20's length direction. Second turn-ups 182 is located the coplanar with first turn-ups 181, and second turn-ups 182 can be one, also can be a plurality of, and a plurality of second turn-ups 182 interval ground ring meets slot 11 setting, can further strengthen flat pipe 20 and fin 10's welding strength.
The flange structure 18 further includes a third flange 183, the third flange 183 is connected to the second flange 182, the third flange 183 is perpendicular to the second flange 182, the plurality of third flanges 183 and the plurality of second flanges 182 are arranged in a one-to-one correspondence manner, and each third flange 183 is arranged on one side of the second flange 182 far away from the first flange 181, so as to avoid the slot 11. Third turn-ups 183 and adjacent flat pipe 20 butt, play limiting displacement.
The microchannel heat exchanger 100 further comprises a distributor 30 and an adapter tube 40, wherein the distributor 30 is provided with a plurality of capillary tubes 31, one end of the adapter tube 40 is communicated with the capillary tubes 31, and the other end of the adapter tube 40 is communicated with the flat tube 20. It can be understood that the medium is uniformly distributed in the distributor 30 and then enters the flat tubes 20, the distributor 30 is used to replace the conventional collecting pipe 60, the process can be simplified, if the flow needs to be changed, only the proper distributor 30 needs to be selected and the number of the capillaries 31 needs to be reduced, if the medium is distributed by the collecting pipe 60, a plurality of flat tube grooves need to be formed in the collecting pipe 60, and the process is complex.
The mouth of pipe of adapter tube 40 towards flat pipe 20 and the mouth of pipe of flat pipe 20 looks adaptation, and one end of flat pipe 20 stretches into in adapter tube 40, strengthens welding strength.
Referring to fig. 3 and 7, adapter tube 40 has a width W toward the mouth of flat tube 20 1 Pipe mouth W larger than flat pipe 20 2 Width and height H of adapter tube 40 toward the mouth of flat tube 20 1 Greater than height H of the mouth of flat tube 20 2 . It can be understood that because flat pipe 20 and adapter tube 40 are made of aluminum material, and are not suitable for flaring, the size of the orifice of adapter tube 40 is designed to be larger than that of flat pipe 20, so that flat pipe 20 can be conveniently inserted into adapter tube 40. It should be noted that, the width and height of adapter tube 40 toward the mouth of flat tube 20 both refer to the internal dimension of adapter tube 40 toward the mouth of flat tube 20, and do not include the thickness of adapter tube 40, and likewise, the mouth of flat tube 20 also does not include the thickness of flat tube 20.
Example one
The flat tubes 20 are in multiple rows, that is, the flat tubes 20 at least include a first row of flat tubes 21 and a second row of flat tubes 22, the microchannel heat exchanger 100 further includes multiple bent tubes 50, and the flat tubes 20 in adjacent rows are communicated through the bent tubes 50; or, the flat tubes 20 in the same column are communicated through the bent tube 50; or, the flat tubes 20 in adjacent rows are communicated through the bent tube 50, and the flat tubes 20 in the same row are communicated through the bent tube 50, so as to realize different flows of the medium. The bent pipe 50 and the flat pipe 20 are arranged in a split mode and fixedly connected through welding, and therefore the bending process of the flat pipe 20 is reduced. It can be understood that, at the in-process of bending, the problem that fin 10 warp can take place, the utility model discloses need not to bend, can alleviate the problem that fin 10 warp because of bending.
The fins 10 are also multiple rows, the fins 10 close to one row on the windward side are correspondingly abutted to the fins 10 on the next row one to one, multiple rows of fins 10 are formed, the fins 10 on different rows and the fins 10 on the same row are separately arranged, the flat pipes 20 are convenient to connect and plug, the fins 10 on different rows and the fins 10 on the same row face towards the same direction, the second protrusions 16 are close to the windward side, and drainage is facilitated.
Referring to fig. 7 and 9, the slots 11 of the fins 10 in different rows and in the same row are staggered, so that the fins 10 correspond to the rear of the slot 11 of the fin 10 in the previous row, and the medium in the flat tube 20 can exchange heat not only by using the fins 10 on both sides of the slot 11, but also by using the fins 10 behind the flat tube 20, thereby making full use of the fins 10 and enhancing the heat exchange effect.
Preferably, the connecting lines of the central points of the slots 11 in the fins 10 in different rows and in the same row form an equilateral triangle, for example, one slot 11 in the first row of the first row is located exactly in the middle of two adjacent slots 11 in the first row of the second row in the length direction of the fin 10. So set up, can guarantee that the both sides at the rear of a preceding flat pipe 20 can both have fin 10 to strengthen the heat transfer, further strengthen the heat transfer effect.
The microchannel heat exchanger 100 further comprises a plurality of bent pipes 50, and all the flat pipes 20 in adjacent rows are communicated through the bent pipes 50; or all the flat tubes 20 in the same column are communicated through the bent tube 50; or, the flat tubes 20 in adjacent rows are communicated through the bent tube 50, and the flat tubes 20 in the same row are communicated through the bent tube 50, so that the media are diverted in multiple flows. The bent pipe 50 and the flat pipe 20 are arranged separately and fixedly connected by welding, and the flat pipe 20 does not need to be bent to enable the medium to be turned, so that the fin 10 is prevented from being deformed due to bending.
In this embodiment, the flat tubes 20 are two rows, the fins 10 are also two rows, the bent tube 50 is located at one end of the flat tube 20 far away from the distribution tube, and the microchannel heat exchanger 100 is formed in a U shape. In other embodiments, the flat tubes 20 may also be three, four, or four or more rows, the bent tubes 50 are disposed at both ends of the flat tubes 20, and the microchannel heat exchanger 100 may also be formed in an L-shape, a V-shape, or the like.
The microchannel heat exchanger 100 further includes a header 60, and the flat tubes 20 in the last column are connected to the header 60. In this embodiment, the second row of flat tubes 22 is connected to the collecting pipe 60, and the medium enters from the first row of flat tubes 21, turns around through the bent pipe 50, enters the second row of flat tubes 22, and then flows into the collecting pipe 60. In other embodiments, if flat tubes 20 are in three rows, header 60 communicates with the third row of flat tubes. By the arrangement, the multi-flow of the medium is realized through the bent pipe 50, the collecting pipe 60 only needs to collect the medium finally without considering the turning direction of the medium, and the collecting pipe 60 does not need to be provided with a partition plate, so that the process of the collecting pipe 60 is simplified.
Example two
The structure of this embodiment is substantially the same as that of the first embodiment, and the same parts are not described again, except that:
the flat tubes 20 are in a row, the fins 10 are also in a row, one end of each flat tube 20 is connected with a distribution pipe connected with the tube through the adapter tube 40, and the other end of each flat tube 20 is connected with the collecting pipe 60.
In the working process, a medium enters from the distributor 30, is uniformly distributed into each flat tube 20 through the capillary tube 31, exchanges heat with the outside through the fins 10, and then flows out from the collecting pipe 60 in a centralized manner after heat exchange.
The utility model discloses a microchannel heat exchanger 100, capillary 31 and adapter tube 40 connection distributor 30 are passed through to its flat pipe 20's one end and are replaced pressure manifold 60, can simplify technology.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A micro-channel heat exchanger comprises a plurality of fins (10) and a plurality of flat tubes (20), wherein the fins (10) are arranged in parallel to form a plurality of rows, connecting slots (11) are formed in the fins (10), the flat tubes (20) are arranged in parallel to form a plurality of layers, and the flat tubes (20) are arranged in the connecting slots (11) in a penetrating mode;
the microchannel heat exchanger is characterized by further comprising a distributor (30) and a transfer pipe (40), wherein a plurality of capillary tubes (31) are arranged on the distributor (30), one end of the transfer pipe (40) is communicated with the capillary tubes (31), and the other end of the transfer pipe is communicated with the flat pipe (20).
2. The microchannel heat exchanger according to claim 1, wherein the mouth of the adapter tube (40) facing the flat tube (20) is adapted to the mouth of the flat tube (20), and one end of the flat tube (20) protrudes into the adapter tube (40).
3. The microchannel heat exchanger according to claim 1, characterized in that the adapter tube (40) has a width W towards the mouth of the flat tube (20) 1 Is larger than the pipe orifice W of the flat pipe (20) 2 Width, and the height H of the adapter tube (40) towards the opening of the flat tube (20) 1 Is greater than the height H of the opening of the flat pipe (20) 2
4. The microchannel heat exchanger according to claim 1, wherein the flat tubes (20) are in at least two rows, the microchannel heat exchanger further comprises a plurality of bent tubes (50), the flat tubes (20) in adjacent rows are communicated through the bent tubes (50), and the bent tubes (50) are separated from the flat tubes (20); and/or the flat pipes (20) in the same row are communicated through the bent pipe (50), and the bent pipe (50) and the flat pipes (20) are arranged in a split mode.
5. The microchannel heat exchanger according to claim 1, wherein the microchannel heat exchanger comprises a header pipe (60), the flat pipes (20) at least comprise a first row of flat pipes (21) and a second row of flat pipes (22), the first row of flat pipes (21) and the second row of flat pipes (22) are arranged in parallel, the first row of flat pipes (21) are connected to the adapter pipe (40), and the second row of flat pipes (22) are connected to the header pipe (60);
or, flat pipe (20) are one row, the one end of flat pipe (20) connect in adaptor pipe (40), the other end connect in pressure manifold (60).
6. The microchannel heat exchanger according to claim 1, wherein the fin (10) is provided with a plurality of first protrusions (14), and the first protrusions (14) are circular, crescent, triangular, square, S-shaped or corrugated.
7. The micro-channel heat exchanger according to claim 6, wherein the first protrusion (14) is provided with a strip slit (15), and the strip slit (15) penetrates through the surface of the fin (10) to form an overfire air channel.
8. The microchannel heat exchanger according to claim 1, wherein the fin (10) has a first side (12) and a second side (13), the side of the fin (10) close to the first side (12) has a plurality of second protrusions (16), the plurality of second protrusions (16) are distributed in sequence along the width direction of the fin (10) to form a corrugated structure, and two ends of the corrugated structure extend towards two sides of the length direction of the fin (10) respectively and penetrate through two ends of the fin (10).
9. The microchannel heat exchanger according to claim 1, wherein the fin (10) comprises a body portion (17) and a flange structure (18) which are connected with each other, the insertion slot (11) is arranged on the body portion (17), the flange structure (18) is arranged at the insertion slot (11), the flange structure (18) is arranged to protrude from the body portion (17), and at least a part of the flange structure (18) abuts against the side surface of the flat tube (20).
10. The microchannel heat exchanger according to claim 1, wherein the fins (10) comprise at least two rows, each row of the fins (10) comprises a plurality of rows of the fins (10) arranged at intervals, the fins (10) in the same row of the two rows of the fins (10) are arranged separately, and the inserting grooves (11) in the fins (10) in the same row are arranged in a staggered manner.
CN202220403404.5U 2021-11-04 2022-02-25 Micro-channel heat exchanger Active CN217383880U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023078399A1 (en) * 2021-11-04 2023-05-11 浙江盾安人工环境股份有限公司 Micro-channel heat exchanger

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215984104U (en) * 2021-06-17 2022-03-08 浙江盾安热工科技有限公司 Heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023078399A1 (en) * 2021-11-04 2023-05-11 浙江盾安人工环境股份有限公司 Micro-channel heat exchanger

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