CN110631386A - Micro-channel plate-fin heat exchanger and forming and assembling method - Google Patents
Micro-channel plate-fin heat exchanger and forming and assembling method Download PDFInfo
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- CN110631386A CN110631386A CN201910849193.0A CN201910849193A CN110631386A CN 110631386 A CN110631386 A CN 110631386A CN 201910849193 A CN201910849193 A CN 201910849193A CN 110631386 A CN110631386 A CN 110631386A
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- plate
- fin
- heat exchanger
- fins
- rib
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
- F28D1/035—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other with U-flow or serpentine-flow inside the conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a microchannel plate-fin heat exchanger and a forming and assembling method, wherein the plate-fin heat exchanger mainly comprises an upper fin plate, a lower fin plate, a seal and fins, wherein a microchannel is formed by assembling and combining gaps among the upper fin plate, the lower fin plate, the seal and the fins which are processed and formed. The invention realizes the purpose of industrialized mass production of the microchannel plate-fin heat exchanger by adopting the traditional processing technique means, and greatly reduces the production cost.
Description
Technical Field
The invention relates to a microchannel heat exchanger, in particular to a microchannel structure of a microchannel plate-fin heat exchanger and a forming and assembling method thereof.
Background
The microchannel heat exchanger is a novel heat exchanger developed in the last 90 th century, has the characteristics of compact structure and high heat dissipation efficiency, is an important direction for the development of the heat exchanger towards high compactness and miniaturization, and is distinguished from a typical sign of a common compact heat exchanger in that the water conservancy equivalent diameter of a fluid flow channel is between 0.01mm and 1mm and is smaller than the water conservancy equivalent diameter of the common compact heat exchanger by 1mm to 6 mm.
The typical structure of the micro-channel heat exchanger is shown in figure 1, and the micro-channel heat exchanger is composed of a heat dissipation plate 1 and a cover plate 2 which are processed with micro flow channels, the micro-channel heat exchanger is formed by multilayer overlapping welding, the water conservancy equivalent diameter of a fluid flow channel of the micro-channel heat exchanger is between 0.01mm and 1mm, the micro flow channel has small size, the width of a common groove is less than 0.3mm, the micro flow channel cannot be processed by the traditional machining means at all, the conventional machining means comprises high-tech advanced machining processes such as laser processing, ion beam gathering, wet chemical etching, ultraviolet photoetching and the like, and the machining process is high in cost, low in efficiency and inconvenient for large-scale.
The typical structure of a common compact plate-fin heat exchanger is shown in figure 2, a heat dissipation unit is composed of a partition plate 3, a seal 4 and fins 5, the plate-fin heat exchanger is formed by multilayer overlapping and welding, the partition plate is formed by cutting a plate, the seal is formed by machining the plate, the fins are formed by stamping a strip, and finally the plate-fin heat exchanger is formed by multilayer overlapping and welding by brazing.
Disclosure of Invention
The invention aims to provide a microchannel plate-fin heat exchanger and a forming and assembling method, wherein advanced high-tech processing means is not needed for processing a microchannel, and the microchannel can be formed only by adopting the traditional processing means, so that the industrial large-scale production is easy to carry out, and the production cost is greatly reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a microchannel plate fin heat exchanger includes,
the upper rib plate comprises a first base plate, and one end face of the first base plate is connected with a plurality of first ribs which are arranged at intervals;
the lower fin plate comprises a second base plate, and one end face of the second base plate is connected with a plurality of second fins which are arranged at intervals;
the first fins are arranged in the interval between two adjacent second fins, and the first base plate, the plurality of first fins, the second base plate and the plurality of second fins are combined to form a channel positioned between the upper fin plate and the lower fin plate;
and the fins are arranged in the channels and separate the channels into a plurality of independent and unconnected micro-channels.
Further, the microchannel plate-fin heat exchanger further comprises seals located at both ends of the fins and between the upper fin plate and the lower fin plate.
Furthermore, the first ribs are parallel to each other and have equal spacing distances, and the second ribs are parallel to each other and have equal spacing distances.
Preferably, the upper rib plate 6 has a rib height of 1.9mm, a rib distance of 1.9mm, and a rib thickness of 0.5 mm.
Preferably, the rib height of the lower rib plate 7 is 1.9mm, the rib distance is 1.9mm, and the rib thickness is 0.5 mm.
Preferably, the wave height of the fins 9 is 2mm, the wave pitch is 1.2mm, and the fin thickness is 0.1 mm.
A method for assembling a microchannel plate-fin heat exchanger includes the steps of aligning a second fin with a lower fin plate according to the wave shape of fins and installing an upper fin according to the fin sunken position, aligning a first fin with the fin sunken position above the fins and installing an upper fin plate, and finally installing sealing strips at two ends of the fins.
A method of forming a microchannel comprised of gaps formed by assembled combinations of formed surfaces of a plurality of heat exchanger components.
The invention relates to a novel structural design concept of a microchannel heat exchanger, namely a design scheme of a microchannel plate-fin heat exchanger. The microchannel plate-fin heat exchanger mainly comprises an upper fin plate, a lower fin plate, a seal and fins.
And (2) arranging an upper fin and an upper fin plate on the lower fin plate in an alignment mode according to the waveform (the waveform of the fin can have various forms, but the first fin and the second fin are always kept to be arranged at the concave positions of the upper surface and the lower surface of the waveform of the fin), then arranging sealing strips at two ends of the fin, and finally forming the heat exchanger through multilayer overlapping welding. After the heat exchanger is assembled, gaps are formed among the upper fin plate, the lower fin plate and the fins, the gaps are channels for fluid to flow, and through the coordination and matching of the sizes of the upper fin plate, the lower fin plate and the fins, the water conservancy equivalent diameter of the gaps can reach the size of 0.01 mm-1 mm, namely, the definition of the micro-channel heat exchanger is met, and the micro-channel heat exchanger becomes a micro-channel heat exchanger.
Compared with the traditional typical micro-channel heat exchanger design structure, the micro-channel plate-fin heat exchanger design structure has the advantages that the micro-channel is formed by assembling a plurality of typical parts, the micro-channel plate-fin heat exchanger design structure is not directly processed, advanced high-tech processing technological means are not needed for processing, the upper rib plate, the lower rib plate, the seal strip and the fin which form the parts can be processed and formed by the traditional machining and stamping processes, the industrial large-scale production can be carried out according to the processing technological means of the traditional plate-fin heat exchanger, and the production cost is greatly reduced.
Compared with the prior art, the invention has the advantages that:
(1) the micro-channel is not directly processed, but is formed by assembling and combining gaps among the upper rib plate, the lower rib plate, the seal and the fin.
(2) The traditional processing technique can be adopted for industrial mass production, and the production cost is greatly reduced.
Drawings
FIG. 1 is a typical microchannel heat exchanger design as set forth in the background;
FIG. 2 is a typical plate fin heat exchanger design as set forth in the background;
FIG. 3 is a microchannel plate fin heat exchanger design of the present invention;
FIG. 4 is a design block diagram of the upper fin plate of the present invention;
FIG. 5 is a design block diagram of a lower fin plate of the present invention;
FIG. 6 is a structural view of a fin design of the present invention;
FIG. 7 is a structural view of a seal design according to the present invention;
FIG. 8 is a schematic diagram of a microchannel design according to the present invention;
in the figure, 1 is a heat dissipation plate, 2 is a cover plate, 3 is a separation plate, 4 is a seal, 5 is fins, 6 is an upper rib plate, 7 is a lower rib plate, 8 is a seal, and 9 is fins.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made based on the common technical knowledge and conventional means in the art without departing from the technical idea of the present invention are included in the scope of the present invention.
As shown in fig. 3, a microchannel plate-fin heat exchanger is mainly composed of an upper fin plate 6, a lower fin plate 7, a seal 8 and a fin 9. The upper fin plate 6 and the upper fin plate 9 are aligned in a wave shape on the lower fin plate 7, then the seal 8 is installed on both ends, and finally the heat exchanger is formed by multilayer overlapping welding. After the heat exchanger is assembled, gaps are formed among the upper fin plate 6, the lower fin plate 7 and the fins 9, the gaps are channels for fluid to flow, and through the coordination and matching of the sizes of the upper fin plate, the lower fin plate and the fins, the water conservancy equivalent diameter of the gaps can reach the size of 0.01 mm-1 mm, namely, the definition of the micro-channel heat exchanger is met, and the micro-channel heat exchanger becomes the micro-channel heat exchanger. As shown in fig. 8, the micro-channel is not directly machined but formed by the assembly clearance between the upper fin 6, the lower fin plate 7, the seal 8, and the fin 9. The upper fin plate 6, the lower fin plate 7, the seal 8, the fins 9 and other parts can be industrially produced in a large scale by adopting the traditional processing technique.
As shown in fig. 3 to 8, the microchannel plate fin heat exchanger provided by the present invention includes an upper fin plate 6, a lower fin plate 7, a seal 8, and fins 9, wherein a wave height of the fins 9 is 2mm, a wave pitch is 1.2mm, a fin thickness is 0.1mm, a rib height of the upper fin plate 6 is 1.9mm, a fin distance is 1.9mm, a fin thickness is 0.5mm, a rib height of the lower fin plate 7 is 1.9mm, a fin distance is 1.9mm, a fin thickness is 0.5mm, a height of the seal 8 is 2mm, and a width is 3 mm.
The micro-channel area formed by assembling and combining the above parts is 0.561mm2The perimeter is 4.657mm, and according to a calculation formula of the water conservancy equivalent diameter of the flow channel:
d＝4A/X
d- -water conservancy equivalent diameter (mm)
A- -flow area of flow channel (mm)2)
X- - -Runner Wet circumference Length (mm)
The water conservancy equivalent diameter of the flow channel is 0.482mm, the requirement that the water conservancy equivalent diameter of the micro-channel heat exchanger is between 0.01mm and 1mm is met, and the design target is realized.
Claims (9)
1. A microchannel plate fin heat exchanger, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the upper rib plate (6) comprises a first base plate, and one end face of the first base plate is connected with a plurality of first ribs which are arranged at intervals;
the lower rib plate (7) comprises a second base plate, and a plurality of second ribs which are arranged at intervals are connected to one end face of the second base plate;
the first fins are arranged in the interval between two adjacent second fins, and the first base plate, the plurality of first fins, the second base plate and the plurality of second fins are combined to form a channel positioned between the upper fin plate (6) and the lower fin plate (7);
and the fins (9) are arranged in the channels, and the channels are separated into a plurality of independent and unconnected micro-channels.
2. A microchannel plate fin heat exchanger as set forth in claim 1 wherein: the fin structure is characterized by further comprising seals (8), wherein the seals (8) are located at two ends of the fin (9) and are arranged between the upper fin plate (6) and the lower fin plate (7).
3. A microchannel plate fin heat exchanger as set forth in claim 1 wherein: the first fins are parallel to each other and have equal spacing distances, and the second fins are parallel to each other and have equal spacing distances.
4. A microchannel plate fin heat exchanger as set forth in claim 1 wherein: the rib height of the upper rib plate (6) is 1.9mm, the rib distance is 1.9mm, and the rib thickness is 0.5 mm.
5. A microchannel plate fin heat exchanger as set forth in claim 1 wherein: the rib height of the lower rib plate (7) is 1.9mm, the rib distance is 1.9mm, and the rib thickness is 0.5 mm.
6. A microchannel plate fin heat exchanger as set forth in claim 1 wherein: the wave height of the fins (9) is 2mm, the wave pitch is 1.2mm, and the thickness of the fins is 0.1 mm.
7. A method of assembling the microchannel plate fin heat exchanger of claim 1, wherein: firstly, the lower rib plate (7) is aligned with the second rib plate and the upper rib plate (9) according to the wave shape of the fin (9) and the fin concave position, and then the upper rib plate (6) is aligned with the first rib plate and the upper rib plate (9) according to the fin concave position above the fin (9).
8. The method of assembling a microchannel plate fin heat exchanger of claim 7, wherein: finally, seals (8) are arranged at two ends of the fin (9).
9. A method for forming a microchannel, comprising: the microchannel is formed by gaps formed by assembling and combining the formed surfaces of a plurality of heat exchanger components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910849193.0A CN110631386B (en) | 2019-09-09 | 2019-09-09 | Micro-channel plate-fin heat exchanger and forming and assembling method |
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| CN201910849193.0A CN110631386B (en) | 2019-09-09 | 2019-09-09 | Micro-channel plate-fin heat exchanger and forming and assembling method |
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| CN110631386A true CN110631386A (en) | 2019-12-31 |
| CN110631386B CN110631386B (en) | 2020-09-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220142009A1 (en) * | 2020-11-02 | 2022-05-05 | Sungrow Power Supply Co., Ltd. | Water-cooler heat dissipation device and electrical device |
| CN115255837A (en) * | 2022-08-22 | 2022-11-01 | 中国电子科技集团公司第三十八研究所 | Heterogeneous built-in micro-channel cold plate and forming method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115255837A (en) * | 2022-08-22 | 2022-11-01 | 中国电子科技集团公司第三十八研究所 | Heterogeneous built-in micro-channel cold plate and forming method thereof |
| CN115255837B (en) * | 2022-08-22 | 2023-09-19 | 中国电子科技集团公司第三十八研究所 | Heterogeneous built-in micro-channel cold plate and forming method thereof |
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| CN110631386B (en) | 2020-09-25 |
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