CN211012617U - Micro-channel flat tube - Google Patents
Micro-channel flat tube Download PDFInfo
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- CN211012617U CN211012617U CN201921939434.2U CN201921939434U CN211012617U CN 211012617 U CN211012617 U CN 211012617U CN 201921939434 U CN201921939434 U CN 201921939434U CN 211012617 U CN211012617 U CN 211012617U
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- heat exchange
- bottom plate
- top plate
- flat tube
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Abstract
The utility model provides a flat pipe of microchannel relates to the indirect heating equipment field. The micro-channel flat tube comprises: the heat exchange pipeline is provided with a top plate and a bottom plate which are oppositely arranged; a partition disposed between the top plate and the bottom plate, the partition and the heat exchange tubes forming a through microchannel therebetween; the heat exchange pipeline and the separator are both made of heat conduction materials; the two ends of the separator are respectively connected with the top plate and the bottom plate in a welding, bonding or interference fit mode. The microchannel flat tube can be used for manufacturing the microchannel flat tube with high corrosion resistance and high structural strength.
Description
Technical Field
The utility model relates to a indirect heating equipment field particularly, relates to a flat pipe of microchannel.
Background
The micro-channel heat exchanger is a micro radiator with the channel equivalent diameter of 10-1000 μm, which is produced and manufactured by using a precision machining technology and a micro-machining technology. Due to the size effect of the micro-channel, the heat transfer area per unit volume is high, so that the micro-channel heat exchanger has high heat exchange efficiency compared with the traditional heat exchanger.
At present, the aluminum alloy micro-channel flat tube has two production and manufacturing modes on the market: one is that the flat tube is formed by adopting continuous extrusion by taking an aluminum alloy rod as a raw material; the other type is formed by taking high-quality aluminum alloy round ingots as raw materials and adopting a split-flow welding extrusion process, in the process, after metal blanks are split by split-flow holes, the metal blanks are welded again in a welding chamber to form a closed section, and then the closed section is extruded from working belts of a core rod and a female die to form a pipe. Compared with the two production methods, the flat tube obtained by the former method has poor corrosion resistance; in the latter method, the metal undergoes a solid state bonding process, and the mechanical properties of the bonding location are not stable enough.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a micro-channel flat tube, its corrosion resisting property is strong and mechanical properties is stable.
The embodiment of the utility model is realized like this:
a microchannel flat tube comprising:
the heat exchange pipeline is provided with a top plate and a bottom plate which are oppositely arranged;
a partition disposed between the top plate and the bottom plate, the partition and the heat exchange tubes forming a through microchannel therebetween;
the heat exchange pipeline and the separator are both made of heat conduction materials;
the two ends of the separator are respectively connected with the top plate and the bottom plate in a welding, bonding or interference fit mode.
In the preferred embodiment of the present invention, the plurality of partitions are disposed in parallel at intervals, the plurality of partitions and the top plate and the bottom plate form a plurality of microchannels therebetween, and the plurality of microchannels are disposed in parallel at intervals.
In the preferred embodiment of the present invention, the separating element is connected to the top plate in a sealing manner, the separating element is connected to the bottom plate in a sealing manner, two adjacent separating elements, one of the micro channels is formed between the top plate and the bottom plate, and two adjacent micro channels are separated from each other.
In a preferred embodiment of the present invention, the heat exchange pipe further comprises a first side wall, both ends of the first side wall are respectively connected to the top plate and the bottom plate, and the first side wall, the top plate, the bottom plate and the partition member close to the first side wall form one of the micro channels therebetween.
In a preferred embodiment of the present invention, the heat exchange pipe further includes a second side wall opposite to the first side wall, two ends of the second side wall are respectively connected to the top plate and the bottom plate, and the second side wall, the top plate, the bottom plate and the partition member close to the second side wall form one of the micro channels therebetween.
In the preferred embodiment of the present invention, the heat exchange pipeline is disposed as an integral structure.
In a preferred embodiment of the present invention, the partition is provided in a circular shape in a cross section perpendicular to an axial direction thereof.
The embodiment of the utility model provides a beneficial effect is: utilize welding, bond or can firmly link together between the separator that interference fit's mode is connected and the heat transfer pipeline, and utilize the separator can separate the inside space of heat transfer pipeline, in order to form the microchannel that runs through, the microchannel flat pipe that this kind of mode formed is owing to need not use continuous extrusion's technology, thereby the finished product's that obtains corrosion resisting property is higher, and because the microchannel flat pipe that this kind of mode formed need not to carry out the reposition of redundant personnel operation, the heat transfer pipeline can keep integrative structure, therefore its structural strength is higher. To sum up, the microchannel flat tube that this application provided can realize making corrosion resisting property height and structural strength is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first view angle of a micro-channel flat tube provided in an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a structural schematic diagram at second visual angle of the flat pipe of microchannel.
Icon: 100-microchannel flat tubes; 110-a heat exchange conduit; 111-top plate; 112-a first side wall; 113-a backplane; 114-a second side wall; 120-a separator.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, 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 embodiments of the present invention can be understood in specific cases by those skilled in the art.
First embodiment
Referring to fig. 1 and 2, the embodiment provides a microchannel flat tube 100, where the microchannel flat tube 100 includes:
a heat exchange pipe 110, wherein the heat exchange pipe 110 is provided with a top plate 111 and a bottom plate 113 which are oppositely arranged;
a partition 120, the partition 120 being disposed between the top plate 111 and the bottom plate 113, the partition 120 and the heat exchange pipe 110 forming a micro channel therethrough;
wherein, the two ends of the partition 120 are respectively connected with the top plate 111 and the bottom plate 113 by welding, bonding or interference fit.
The partition pieces 120 and the heat exchange pipeline 110 which are connected in a welding, bonding or interference fit mode can be firmly connected together, the space inside the heat exchange pipeline 110 can be partitioned by the partition pieces 120 to form a through micro-channel, the micro-channel flat pipe 100 formed in the mode does not need a continuous extrusion process, the corrosion resistance of the obtained finished product is high, the micro-channel flat pipe 100 formed in the mode does not need to be subjected to shunting operation, the heat exchange pipeline 110 can keep an integral structure, and the structural strength of the heat exchange pipeline is high. In summary, the microchannel flat tube 100 and the manufacturing method thereof provided by the application can realize the manufacture of the microchannel flat tube 100 with high corrosion resistance and high structural strength.
Alternatively, in this embodiment, the partition 120 and the heat exchange pipe 110 are welded together by ultrasonic welding.
Since the ultrasonic welding has advantages of high welding precision and high welded structural strength, the ultrasonic welding of the partitions 120 and the heat exchange pipes 110 together may allow accurate welding between the partitions 120 and the heat exchange pipes 110, which are small in volume, and the structural strength after welding is sufficient to meet the requirements.
Specifically, in this embodiment, the parameters of the ultrasonic welding are: the ultrasonic power is 1-10 kw, the frequency is 20KHZ, and the welding moving speed is 0.05-0.8 m/s.
Optionally, in this embodiment, the plurality of partitions 120 are disposed in parallel, the plurality of partitions 120 are disposed at intervals, a plurality of microchannels are formed between the plurality of partitions 120 and the top plate 111 and the bottom plate 113, and the plurality of microchannels are disposed at intervals in parallel.
A plurality of separators 120 in order to realize a plurality of independent microchannels, a plurality of microchannels that set up side by side interval can realize higher heat radiating area to realize the high radiating function that the microchannel needs to realize.
Optionally, in this embodiment, the partition 120 is hermetically connected to the top plate 111, the partition 120 is hermetically connected to the bottom plate 113, one of the microchannels is formed between two adjacent partitions 120, the top plate 111 and the bottom plate 113, and two adjacent microchannels are separated from each other.
It should be noted that the term "sealing connection" as used in this application refers to a tight fit between the partition 120 and the top plate 111 to achieve mutual independence between different microchannels, and to exclude mutual interference between different microchannels.
Optionally, in this embodiment, the heat exchange tube 110 further includes a first sidewall 112, two ends of the first sidewall 112 are respectively connected to the top plate 111 and the bottom plate 113, and one of the micro channels is formed between the first sidewall 112, the top plate 111, the bottom plate 113 and the partition 120 close to the first sidewall 112.
The first side wall 112, i.e. the end of the heat exchange tube 110 perpendicular to the axial direction thereof, specifically, the end of the heat exchange tube 110 and the width direction thereof, may be an integral structure between the first side wall 112 and the bottom plate 113 and the top plate 111, so as to facilitate the processing and ensure the structural strength thereof.
Optionally, in this embodiment, the heat exchange tube 110 further includes a second sidewall 114 disposed opposite to the first sidewall 112, two ends of the second sidewall 114 are respectively connected to the top plate 111 and the bottom plate 113, and one of the microchannels is formed between the second sidewall 114, the top plate 111, the bottom plate 113 and the partition 120 close to the second sidewall 114.
The second side wall 114, i.e. the other end of the heat exchange tube 110 perpendicular to the axial direction thereof, specifically, the other end of the heat exchange tube 110 and the width direction thereof, the first side wall 112, the second side wall 114, the bottom plate 113 and the top plate 111 may be an integral structure, which facilitates the processing and ensures the structural strength thereof.
Optionally, in this embodiment, the heat exchange pipe 110 is provided as an integral structure.
The use of the heat exchange pipe 110 formed in one piece may allow the outer surface of the heat exchange pipe 110 not to be damaged, so that it has high corrosion resistance, and it is easy to process and has high structural strength.
Alternatively, in the present embodiment, the partition 120 is provided in a circular shape in a cross section perpendicular to the axial direction thereof.
Specifically, in the present embodiment, the separator 120 is made of a metal wire, which is a very common material in the industry, so that the separator is easy to take and is more economical.
Of course, in other embodiments, any other form of the partition 120 with a rectangular, pentagonal, hexagonal, etc. cross section may be adopted as long as the partition of the space inside the heat exchange pipe 110 into a plurality of microchannels can be realized.
Specifically, in the present embodiment, the heat exchange pipe 110 and the spacer 120 are made of copper metal.
Since the metal copper has excellent heat conductivity, the metal copper can be used as the material of the microchannel flat tube 100 to have good heat conductivity.
Of course, in other embodiments, other materials with thermal conductivity, such as aluminum or aluminum alloy, may also be used, and only the micro channel may be used for heat dissipation.
Specifically, in the present embodiment, 7 × 0.1mm is adopted as the heat exchange pipe 1102The copper pipe of specification extrudees and forms, and the separator adopts the copper line that the diameter is 0.8mm to interval between the copper line is less than 1mm, and the microchannel that forms like this has better radiating effect.
Of course, in other embodiments, other specifications of copper pipes, copper wires, aluminum pipes, aluminum wires and other materials may be adopted, and only the micro-channels may be formed.
The micro-channel flat tube 100 provided by the embodiment can be firmly connected with the heat exchange tube 110 by the separators 120 connected in a welding, bonding or interference fit manner, and the separators 120 can be used for separating the space inside the heat exchange tube 110 to form a through micro-channel, the micro-channel flat tube 100 formed in this manner does not need a continuous extrusion process, so that the obtained finished product has high corrosion resistance, and the micro-channel flat tube 100 formed in this manner does not need to be subjected to a shunting operation, the heat exchange tube 110 can be maintained in an integral structure, and therefore, the structural strength of the heat exchange tube is high.
Second embodiment
The embodiment provides a method for manufacturing a micro-channel flat tube, which comprises the following steps:
arranging a separator made of heat conducting materials in a heat exchange pipeline made of heat conducting materials;
extruding the heat exchange pipe along a direction perpendicular to the axial direction of the heat exchange pipe so that a top plate and a bottom plate on the heat exchange pipe are close to the separating piece;
the separators and the heat exchange pipes are connected together by welding, bonding or interference fit connection, so that the through micro-channels are formed between the separators and the heat exchange pipes.
Utilize welding, bond or can firmly link together between the separator that interference fit's mode is connected and the heat transfer pipeline, and utilize the separator can separate the inside space of heat transfer pipeline, in order to form the microchannel that runs through, the microchannel flat pipe that this kind of mode formed is owing to need not use continuous extrusion's technology, thereby the finished product's that obtains corrosion resisting property is higher, and because the microchannel flat pipe that this kind of mode formed need not to carry out the reposition of redundant personnel operation, the heat transfer pipeline can keep integrative structure, therefore its structural strength is higher. In summary, the manufacturing method of the micro-channel flat tube provided by the application can realize the manufacturing of the micro-channel flat tube with high corrosion resistance and high structural strength.
Optionally, in this embodiment, the heat exchange pipe is formed by compressing a circular pipe made of a heat conductive material in a direction perpendicular to an axial direction of the circular pipe.
Because in industrial production, circular pipeline is very general, and compare in special-shaped pipeline, its convenient for acquireing and low price, consequently adopt circular pipeline as the raw and other materials of heat transfer pipeline, can form the heat transfer pipeline through simple extrusion, it is very convenient.
Of course, in other embodiments, a finished product, that is, a pipeline in the shape of a microchannel flat pipe, may also be used as a raw material for changing the microchannel into a pipeline, which saves production steps and improves production efficiency.
Specifically, in the present embodiment, in order to prevent the ultrasonic impact head from contaminating the heat exchange pipe 110 or the partition 120, a heat-resistant film is coated on the pipe before welding.
The production method of the micro-channel flat pipe provided by the embodiment can firmly connect the separators and the heat exchange pipeline which are connected in a welding, bonding or interference fit mode, and can separate the space inside the heat exchange pipeline by using the separators to form the through micro-channel. In summary, the manufacturing method of the micro-channel flat tube provided by the application can realize the manufacturing of the micro-channel flat tube with high corrosion resistance and high structural strength.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A microchannel flat tube, comprising:
the heat exchange pipeline is provided with a top plate and a bottom plate which are oppositely arranged;
a partition disposed between the top plate and the bottom plate, the partition and the heat exchange tubes forming a through microchannel therebetween;
the heat exchange pipeline and the separator are both made of heat conduction materials;
the two ends of the separator are respectively connected with the top plate and the bottom plate in a welding, bonding or interference fit mode.
2. The microchannel flat tube of claim 1, wherein the divider is provided in a plurality, the plurality of dividers are spaced apart in parallel, a plurality of microchannels are formed between the plurality of dividers and the top and bottom plates, and the plurality of microchannels are spaced apart in parallel.
3. The microchannel flat tube of claim 2, wherein the partitions are in sealed connection with the top plate and the partitions are in sealed connection with the bottom plate, one of the microchannels is formed between two adjacent partitions, the top plate and the bottom plate, and two adjacent microchannels are separated from each other.
4. The microchannel flat tube of claim 2 or 3, wherein the heat exchange tube further comprises a first sidewall, both ends of the first sidewall are connected to the top plate and the bottom plate, respectively, and one of the microchannels is formed among the first sidewall, the top plate, the bottom plate and the partition member adjacent to the first sidewall.
5. The microchannel flat tube of claim 4, wherein the heat exchange tube further comprises a second sidewall opposite to the first sidewall, both ends of the second sidewall are connected to the top plate and the bottom plate, respectively, and one of the microchannels is formed among the second sidewall, the top plate, the bottom plate, and the partition member adjacent to the second sidewall.
6. The microchannel flat tube of claim 5, wherein the heat exchange tube is provided as a unitary structure.
7. The microchannel flat tube according to claim 6, wherein the partition is provided in a circular shape in a cross section perpendicular to an axial direction thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921939434.2U CN211012617U (en) | 2019-11-11 | 2019-11-11 | Micro-channel flat tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921939434.2U CN211012617U (en) | 2019-11-11 | 2019-11-11 | Micro-channel flat tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211012617U true CN211012617U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921939434.2U Active CN211012617U (en) | 2019-11-11 | 2019-11-11 | Micro-channel flat tube |
Country Status (1)
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|---|---|
| CN (1) | CN211012617U (en) |
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2019
- 2019-11-11 CN CN201921939434.2U patent/CN211012617U/en active Active
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