CN110926256A - Heat exchange plate and heat exchanger comprising same - Google Patents

Heat exchange plate and heat exchanger comprising same Download PDF

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Publication number
CN110926256A
CN110926256A CN201911077938.2A CN201911077938A CN110926256A CN 110926256 A CN110926256 A CN 110926256A CN 201911077938 A CN201911077938 A CN 201911077938A CN 110926256 A CN110926256 A CN 110926256A
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CN
China
Prior art keywords
flow
heat exchanger
heat exchange
exchange plate
along
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911077938.2A
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Chinese (zh)
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CN110926256B (en
Inventor
杨宗豪
李马林
刘继辉
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Huawei Digital Power Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201911077938.2A priority Critical patent/CN110926256B/en
Publication of CN110926256A publication Critical patent/CN110926256A/en
Priority to EP20885438.0A priority patent/EP4023997B1/en
Priority to PCT/CN2020/126857 priority patent/WO2021088940A1/en
Application granted granted Critical
Publication of CN110926256B publication Critical patent/CN110926256B/en
Priority to US17/696,013 priority patent/US20220205738A1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F28F3/027Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0081Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by a single plate-like element ; the conduits for one heat-exchange medium being integrated in one single plate-like element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04Elements 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
    • F28F3/042Elements 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 local deformations of the element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04Elements 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
    • F28F3/048Elements 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/06Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0031Radiators for recooling a coolant of cooling systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001Recuperative heat exchangers
    • F28D21/0014Recuperative heat exchangers the heat being recuperated from waste air or from vapors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00Fins
    • F28F2215/04Assemblies of fins having different features, e.g. with different fin densities
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/02Streamline-shaped elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04Elements 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
    • F28F3/042Elements 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 local deformations of the element
    • F28F3/044Elements 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 local deformations of the element the deformations being pontual, e.g. dimples
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04Elements 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
    • F28F3/042Elements 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 local deformations of the element
    • F28F3/046Elements 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 local deformations of the element the deformations being linear, e.g. corrugations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/083Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart

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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)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The embodiment of the application provides a heat transfer board and heat exchanger including this heat transfer board, this heat transfer board includes: a substrate including a first side along a first direction and a second side along a second direction, the first direction and the second direction being different directions; the first flow deflectors are arranged on the substrate and used for guiding the flow of air flow, wherein a plurality of first flow deflectors are arranged in a row at intervals along the first direction, and a plurality of rows of first flow deflectors are arranged at intervals along the second direction; the supporting structure is arranged on the substrate, extends along the first direction, and is arranged with each row of the first flow conductors at intervals along the second direction. The application provides a heat transfer board can carry out the water conservancy diversion to the gas through the heat exchanger for the air current flows along the water conservancy diversion direction, thereby improves the heat exchange efficiency of heat exchanger to the air current.

Description

Heat exchange plate and heat exchanger comprising same
Technical Field
The embodiment of the application relates to the heat exchanger technology, in particular to a heat exchange plate and a heat exchanger comprising the same.
Background
With the development of artificial intelligence technology and the arrival of the big data era, data needing to be processed by a data center is increased rapidly, and more heat energy is released by equipment for data processing. How to reduce the heat of the data center becomes a problem to be solved urgently.
In the prior art, plate heat exchangers are generally used to exchange hot air streams released by equipment in a data center with external cold air streams. In a plate heat exchanger, surface features of the heat exchange plates (e.g., surface patterns, arrangement of patterns, etc.) affect the heat exchange efficiency of the air channels on both sides of the heat exchanger.
In the related art, a convex hull structure is generally formed on the surface of the heat exchange plate to improve the heat transfer coefficient of the heat exchange plate. The convex hull structure typically includes either vertical bar-shaped convex hulls or circular convex hulls arranged in an array. The convex hull structures are typically arranged in a sparse or dense manner. When the arrangement is carried out in a sparse arrangement mode, the air flow is generally distributed unevenly, and the utilization rate of the heat exchange plate is reduced; when the dense mode is adopted for arrangement, the flow resistance of the airflow is increased, so that the flow velocity of the airflow is reduced, and the flow efficiency is reduced. In conclusion, how to improve the heat exchange efficiency of the heat exchanger to the airflow becomes a problem.
Disclosure of Invention
The heat exchange plate provided by the application can improve the heat exchange efficiency of the heat exchange plate to air flow by arranging the first flow guide body or the combination of the first flow guide body and the second flow guide body.
In order to solve the technical problem, the following technical scheme is adopted in the application:
in a first aspect, a heat exchange plate of an embodiment of the present application includes: a substrate including a first side along a first direction and a second side along a second direction, the first direction and the second direction being different directions; the first flow deflectors are arranged on the substrate and used for guiding the flow of air flow, wherein a plurality of first flow deflectors are arranged in a row at intervals along the first direction, and a plurality of rows of first flow deflectors are arranged at intervals along the second direction; the supporting structure is arranged on the substrate, extends along the first direction, and is arranged with each row of the first flow conductors at intervals along the second direction.
According to the heat exchange plate, the first flow guide body and the supporting structure are formed on the surface of the base plate, so that gas passing through the heat exchanger can be guided, and the gas flow can flow along the flow guide direction; secondly, can also make the heat transfer board by even a plurality of cavitys of being separated, can be with the even restriction of air current in every cavity, avoid the air current to distribute inhomogeneous on the heat transfer board, improve the utilization ratio of heat transfer board to improve heat exchange efficiency.
With reference to the first aspect, in a possible implementation manner, the heat exchange plate further includes a second flow guiding body disposed on the base plate; the first flow conductors and the second flow conductors are arranged in a line at intervals along the first direction to form a plurality of flow conductor groups arranged along the second direction, wherein the first flow conductors and the second flow conductors are arranged at the same positions in each line of the flow conductor groups.
The heat exchange plate disclosed by the application can enable the airflow to form a vortex at certain positions of the heat exchange plate by arranging the flow guide body group formed by the first flow guide body and the second flow guide body, so that the contact area between the airflow and the heat exchange plate is increased. Therefore, the air flow and the heat exchange plate can exchange heat fully, and the air flow exchange effect is improved.
With reference to the first aspect, in a possible implementation manner, along the second direction, the flow conductors are arranged in pairs in an axisymmetric manner; in the paired fluid guide groups, the first fluid guide and the second fluid guide in one of the columns of fluid guide groups extend in a third direction, the first fluid guide and the second fluid guide in the other column of fluid guide groups extend in a fourth direction, and the first direction, the second direction, the third direction, and the fourth direction are different directions.
This application is arranged through making up the axial symmetry of baffle in pairs, can be so that the air current flows along same direction, avoids the air current to flow along a plurality of directions and leads to the air current to distribute unevenly in the runner and between each third convex closure to improve the homogeneity that the air current distributes, can further improve heat transfer effect.
With reference to the first aspect, in one possible implementation manner, the pairs of the current carrier groups and the support structures are arranged at intervals along the second direction.
With reference to the first aspect, in a possible implementation manner, the heat exchange plate further includes a third flow guiding body disposed on the base plate; the first flow conductors and the third flow conductors are arranged in a line at intervals along the first direction to form a plurality of flow conductor groups arranged along the second direction, wherein the first flow conductors and the second flow conductors are arranged at different positions in the adjacent line of flow conductor groups.
The heat exchange plate shown in the application can form a vortex when air flow flows through the gaps of the convex hulls by arranging the flow guide body group formed by the first flow guide body and the third flow guide body, so that the contact area between the air flow and the heat exchange plate is increased, and the heat exchange efficiency is improved.
With reference to the first aspect, in a possible implementation manner, the first current carrier extends along the first direction, and the third current carrier extends along a third direction, where the first direction and the third direction are different directions.
With reference to the first aspect, in one possible implementation manner, the first current carrier and the support structure respectively protrude to different surfaces of the substrate.
This application is through protruding to the different faces of base plate respectively with first baffle and bearing structure, can be so that the air current carries out the heat transfer at the two sides of heat transfer board to required heat transfer board's figure has been reduced in the heat exchanger, has practiced thrift the manufacturing cost of heat exchanger.
With reference to the first aspect, in a possible implementation manner, a reinforcing structure is connected between every two first flow conductors arranged at intervals.
Through set up additional strengthening between per two baffle, can be so that first baffle is more firm, be favorable to improving the stability of heat transfer board, and then be favorable to improving the heat transfer performance of heat transfer board.
With reference to the first aspect, in a possible implementation manner, a positioning boss is further disposed on the substrate.
With reference to the first aspect, in a possible implementation manner, the heat exchange plate further includes a plurality of positioning bosses for assembling with adjacent heat exchange plates, and the plurality of positioning bosses are disposed on the base plate.
This application is through setting up the location boss on the base plate, can be convenient for assemble between the heat transfer board, further improves the stability between the heat transfer board for the heat exchanger is more firm.
With reference to the first aspect, in a possible implementation manner, a pattern formed by orthographic projection of the first current carrier on the substrate includes one of: circular, oval, drop-shaped, strip-shaped, triangular.
With reference to the first aspect, in one possible implementation manner, the substrate, the first flow guiding body, and the supporting structure are integrally formed; and the material forming the heat exchanger plate comprises one of: metallic material, non-metallic material.
In a second aspect, embodiments of the present application provide a heat exchanger comprising a plurality of heat exchange plates as described in the first aspect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 a-1 b are schematic views of two heat exchanger plates according to the prior art;
FIG. 2 is a schematic view of a surface structure of a heat exchange plate according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of the heat exchange panel shown in FIG. 2 provided by an embodiment of the present application;
FIG. 4 is yet another cross-sectional view of the heat exchange plate shown in FIG. 2 provided by an embodiment of the present application;
FIG. 5 is a schematic surface structure view of another heat exchange plate provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of a pattern formed by orthographic projection of a convex hull onto a substrate according to an embodiment of the present disclosure;
FIG. 7 is a schematic structural diagram of an elliptical convex hull provided in an embodiment of the present application;
FIG. 8 is a schematic surface structure view of another heat exchange plate provided in an embodiment of the present application;
FIG. 9a is a schematic diagram of a third convex hull according to an embodiment of the present application;
fig. 9b is a schematic cross-sectional structure diagram of a third convex hull provided in the embodiment of the present application;
FIG. 10 is a schematic surface structure view of yet another heat exchanger plate provided in an embodiment of the present application;
FIG. 11 is a schematic surface structure view of another heat exchange plate provided in an embodiment of the present application;
FIG. 12 is a schematic surface structure view of another heat exchange plate provided in an embodiment of the present application;
FIG. 13 is a schematic surface structure view of yet another heat exchange plate provided in an embodiment of the present application;
FIG. 14 is a schematic surface structure view of another heat exchange plate provided in an embodiment of the present application;
FIG. 15 is a schematic structural diagram of a heat exchanger provided in an embodiment of the present application;
FIG. 16 is a schematic view of the relative positions of heat exchange plates in a heat exchanger provided by an embodiment of the present application;
FIG. 17(a) is a cross-sectional view taken along bb' in the heat exchange plate 161 shown in FIG. 16 according to an embodiment of the present application;
fig. 17(b) is a sectional view taken along the cc' position in the heat exchange plate 162 shown in fig. 16 according to the embodiment of the present application;
FIG. 17(c) is a schematic view of an assembly between two heat exchange plates according to an embodiment of the present application;
FIG. 17(d) is a schematic view of an assembly between four heat exchanger plates according to an embodiment of the present application;
FIG. 18(a) is yet another cross-sectional view taken along bb' in the heat exchange plate 161 shown in FIG. 16 provided by an embodiment of the present application;
fig. 18(b) is still another sectional view taken along the cc' position in the heat exchange plate 162 shown in fig. 16, provided by the embodiment of the present application;
FIG. 18(c) is a schematic view of an assembly between two heat exchange plates according to an embodiment of the present application;
fig. 18(d) is an assembly diagram between four heat exchange plates according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like, as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
In the implementation of the application, "and/or" describes the association relationship of the associated objects, and means that three relationships can exist, for example, a and/or B, and means that three cases of a exists alone, a and B exist simultaneously, and B exists alone.
In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, a plurality of current carriers refers to two or more current carriers; a plurality of convex hulls refers to two or more convex hulls.
To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1a is a schematic view of a surface structure of a heat exchange plate in the prior art. As shown in fig. 1a, the heat exchange plate of the prior art comprises strip-shaped convex hulls 101 and convex hulls 102 arranged in a criss-cross manner. Wherein the convex hull 101 forms a protrusion on a first surface S1 shown in fig. 1a and a depression on a second surface opposite to the first surface S1; the convex hull 102 forms a depression in a first face S1 shown in fig. 1a and a protrusion in a second face opposite to the first face S1. As can be seen from fig. 1a, the arrangement between the strip-shaped convex hulls 101 and 102 is dense. The convex hulls which are densely arranged can ensure that the air flow and the heat exchange plate can fully exchange heat, and the heat transfer coefficient of the heat exchange plate is improved. However, the convex hulls are densely arranged, so that the flow resistance of the airflow is greatly enhanced, the flow speed of the fluid is limited, and the airflow heat exchange speed of the data center is reduced.
Fig. 1b is a schematic view of the surface structure of another heat exchange plate in the prior art. As shown in fig. 1b, the surface of the heat exchange plate comprises a plurality of circular convex hulls arranged in an array. As can be seen from fig. 1b, there is a large spacing between each row or column of convex hulls. The surface of the heat exchange plate is designed into a convex hull with the shape, so that the flow speed of the fluid can be improved. However, the sparse convex hulls reduce the heat transfer coefficient of the surface of the heat transfer plate, thereby reducing the heat transfer efficiency between the cold air stream and the hot air stream.
Based on the problem that the surface texture of above-mentioned current heat transfer board exists, this application provides a heat transfer board and contains the heat exchanger of this heat transfer board through setting up first baffle and bearing structure in order to carry out the drainage to the air current to improve the heat exchange efficiency of heat exchanger, reduce gaseous flow resistance.
It should be noted that the flow conductor described in this application may include one convex hull (e.g., the convex hull 2011 shown in fig. 2, e.g., the convex hull 20131 shown in fig. 8), may further include a plurality of convex hulls (e.g., the flow conductor 201 shown in fig. 2) along the second direction in the embodiment shown in fig. 2, 5, and 14, may further include a pair of convex hulls (e.g., the third convex hull 2013 shown in fig. 8) along the first direction in the embodiment shown in fig. 8, 10, 11, and 12, and may further include a plurality of pairs of convex hulls (e.g., the flow conductor 201 shown in fig. 8) along the second direction in the embodiment shown in fig. 8, 10, 11, and 12.
Fig. 2 is a schematic surface structure diagram of a heat exchange plate according to an embodiment of the present application. In fig. 2, the heat exchange plate 20 includes a base plate 21, a current carrier 201 formed on the base plate 21, and a support structure 202.
The substrate 21 includes a first side B1, a second side B2 along the first direction x, and a third side B3, a fourth side B4 along the second direction y. The first direction x is a horizontal direction, and the second direction y is a vertical direction. The substrate 21 further includes a first surface S1, and a second surface opposite to the first surface S1. In fig. 2, the second surface is not shown.
The current carrier 201 includes a plurality of convex hulls 2011 arranged at intervals along the second direction y. Specifically, the pattern formed by the orthographic projection of the convex hulls 2011 onto the substrate 21 may include, but is not limited to, an ellipse, a drop, a bar, and a triangle, wherein the convex hulls 2011 may have the same or different shapes and the same or different sizes. Fig. 2 schematically shows a case where a pattern formed by orthographic projection of the convex hull 2011 onto the substrate 21 is elliptical.
The support structure 202 extends in the second direction y. Here, the support structure may also be referred to as a support convex hull since it is convex outward with respect to the base plate 21. As can be seen in fig. 2, the support structure extends from the side where the first side B1 is located to the side of the second side B2. By providing the support structure 202 in the shape as shown in fig. 2, the structural strength of the heat exchanger formed by assembling a stack of a plurality of heat exchanger plates 20 may be increased.
It should be noted that, along the second direction y, the support structure may also be a plurality of elongated convex hulls arranged at intervals, and an arrangement manner of the plurality of elongated convex hulls included in the support structure may be the same as an arrangement manner of the convex hulls in the flow conductor 201. That is, the support structure 202 shown in fig. 2 is divided into 3 to 5 sections with a certain gap provided between each section. The support structure for this case is not shown in the figures.
In the heat exchanger plate 20 shown in fig. 2, the flow carriers 201 formed by the plurality of convex hulls 2011 arranged at intervals and the support structures 202 formed by the support convex hulls are alternately arranged at intervals along the first direction x. The intervals of the current carriers in the first direction x may be equal. Thus, the heat exchange plate is uniformly divided into a plurality of cavities. Generally, the side of the second side B2 of the heat exchange plate 20 is an air inlet, and the external air flow flows from the side B2 to the side B1. Through setting up bearing structure 202, can avoid the air current to distribute inhomogeneous on the heat transfer board with the even restriction of air current in every cavity, improve the utilization ratio of heat transfer board to improve heat exchange efficiency.
In the heat exchanger plate 20 shown in fig. 2, the current carrier 201 and the support structure 202 may be formed on the same face, for example, on the first face S1. That is, the convex hulls of current carrier 201 and support structure 202 are convex in the same direction. As shown in fig. 3, fig. 3 shows a cross-sectional view of the heat exchanger plate 20 along AA'.
In one possible implementation, current carrier 201 and support structure 202 may be formed on different faces. For example, current carrier 201 is formed at second face S2 and support structure 202 is formed at first face S1. As shown in fig. 4, fig. 4 exemplarily shows another cross-sectional view of the heat exchanger plate 20 along AA'.
In this embodiment, substrate 21, current carrier 201, and support structure 202 may be integrally formed. That is, substrate 21, current carrier 201, and support structure 202 are formed of the same material. Here, the material forming the heat exchange plate 20 may be a metal material or a non-metal material. Among them, the metal materials include, but are not limited to: an alloy material (for example, an aluminum alloy) in which aluminum, copper, and various metals are mixed in a certain ratio. The non-metal material includes but is not limited to PP (Polypropylene), PVC (polyvinyl chloride), PS (Polystyrene), PC (Polycarbonate) mixed with various non-metals according to a certain ratio.
The height of the outward bulge of the formed convex hull is limited due to the higher hardness of the metal material. Generally, during the assembly of heat exchanger plates formed of a metal material, a relatively large spacing is usually provided between every two heat exchanger plates, which spacing is usually larger than the height of the outward bulge of the convex hull, typically twice the height of the outward bulge of the convex hull. Therefore, it is preferable that when the heat exchange plate is made of a metal material, the structure shown in the sectional view of fig. 4, that is, the structure in which the current carrier 201 is disposed at the second side S2 and the support structure 202 is disposed at the first side S1, is preferably selected. Thus, the arrangement shown in fig. 4 allows a distance between two heat exchanger plates of about 2 times the height of the outward bulge of the convex hull. And secondly, because the two surfaces of the heat exchange plate are provided with the flow guide structures, outdoor fresh air and indoor hot air can alternately exchange heat on the two surfaces of the heat exchange plate, so that the number of the heat exchange plates required in the heat exchanger is reduced, and the manufacturing cost of the heat exchanger is saved.
Since the non-metal materials PP, PVC, PS, PC and the like are all high polymer materials, compared with metal materials, the high-strength high-toughness high-hardness high-toughness high-. The convex hull formed using the non-metallic material may have a large convex thickness. Therefore, it is preferable that when the heat exchange plate is made of a non-metal material, the structure shown in the sectional view of fig. 3, that is, the current carrier 201 and the support structure 202 are disposed on the first surface S1 shown in fig. 3, may be adopted. The arrangement shown in fig. 3 may be such that the distance between each two heat exchanger plates is about the height of the outward bulge of the convex hull. Thereby, the flow conductors 201 and the support structure 202 of the heat exchanger plate 20 are made more stable.
In some optional implementations, when the heat exchange plate is made of a non-metal material, in order to further improve the stability of the heat exchange plate 20, a reinforcing structure for connecting the convex hulls 2011 may be disposed between the convex hulls 2011 of the flow conductor 201, where the reinforcing structure is a convex hull 2012, as shown in fig. 5, and fig. 5 illustrates a schematic surface structure diagram of another heat exchange plate 20 provided in an embodiment of the present application. The projection of the convex hull 2012 to the base plate 21 is a thin strip. Here, the convex hull 2012 has a supporting function on the convex hull 2011. Through setting up convex closure 2012, can be so that convex closure 2011 is more firm, be favorable to improving heat transfer board 20's stability, and then be favorable to improving the heat transfer performance of heat transfer board. Here, in order to reduce the fluid resistance of the heat exchange plate 20 as much as possible, the width of the convex hull 2012 in the first direction x may be less than or equal to the width of the convex hull 2011 in the first direction x, as shown in fig. 5. Here, the ratio between the width of the convex hull 2012 in the first direction x and the width of the convex hull 2011 in the first direction x may be in the range of [0.2, 1 ].
In some alternative implementations, when the heat exchange plate with the cross-sectional structure shown in fig. 3 is made of a non-metal material, only one side of the heat exchange plate 20 is formed with the current carrier, i.e. single-side current conversion is performed. In order to improve the heat exchange effect of the heat exchanger, compared with a structure in which the flow guiding body is formed on both sides, several heat exchange plates are usually added (for example, the number of the heat exchange plates is increased by one more times). At this time, in order to further improve the stability between the heat exchange plates, so that the heat exchange plates are more firm, bosses 203 may be provided on the heat exchange plates 20, as shown in fig. 5. The boss 203 is provided on the substrate 21. In fig. 5, the boss 203 may be provided at a position as shown in fig. 5. It should be noted that the number of the bosses 203 is not fixed, and is set according to the requirement of the application scenario. For example, in some embodiments, the heat exchange plate may include four bosses, which may be bosses at four positions, shown in fig. 5, at the upper left corner, the lower left corner, the upper right corner, and the lower right corner.
Alternatively, the boss 203 may be provided on the support structure 202.
The bosses 203 on the heat exchanger plates 20 are normally intended for positioning assembly with adjacent heat exchanger plates 20. Grooves are also provided on the other side of the heat exchanger plate 20 where the bosses 203 are not provided, at the same positions as the bosses 203. During the assembly of the heat exchanger plates 20, the bosses 203 of a first heat exchanger plate are inserted into the grooves of a second heat exchanger plate adjacent to the first heat exchanger plate. Typically, the depth of the groove may be one third to one half of the thickness of the substrate, so that the bosses 203 of the first heat exchange plate and the bosses 203 of the second heat exchange plate abut against each other, and the height of the portion of the bosses 203 where the bosses do not embed is the same as the height of the outward protrusion of the convex hull 2011. Therefore, it is preferable that the height of the outward protrusion of the boss 203 is the sum of the height of the outward protrusion of the convex hull 2011 and the depth of the groove.
In some alternative implementations of the present embodiment, the thickness of the convex hull 2011 gradually increases from the edge to the middle. In this alternative implementation, the orthographic projection of the convex hull 2011 onto the base plate 21 is shaped as shown in fig. 6. As can be seen in fig. 6, the orthographic projection of the convex hull 2011 onto the base plate 21 forms a pattern of two nests of the same shape.
The structure of the convex hull 2011 having a projection shape as shown in fig. 6 will be specifically described with reference to fig. 7, taking an elliptical convex hull as an example. Fig. 7 shows a schematic structural diagram of an elliptical convex hull. The elliptical convex hull comprises a first surface a1 and a second surface a2, wherein the first surface a1 is attached to the first surface S1 of the substrate 21, and the second surface a2 is a convex surface. The boundaries of the first surface a1 and the second surface a2 are enclosed by ellipses with different sizes, same shapes or similar shapes. I.e. the first surface and the second surface have the same shape. As can be seen from fig. 6 and 7, the elliptical convex hull is gradually convex from the bottom to the top, so that the cross-sectional view of the elliptical convex hull is a trapezoidal shape. That is, orthographic projections of the a1 plane and the a2 plane toward the substrate 21 are similar ellipses having the same axial center, and the major axis of the a1 plane ellipse is larger than that of the a2 plane ellipse. By setting the convex hull into the shape, the flow resistance of the air flow can be reduced, and the heat exchange speed of the fluid can be improved.
The structures of the elongated convex hulls and the drop-shaped convex hulls are similar to the structures of the elliptical convex hulls, except that the shape of the boundary enclosing the first surface and the second surface is different. And will not be described in detail herein.
With continued reference to fig. 8, a schematic surface structure diagram of yet another heat exchange plate provided by an embodiment of the present application is shown.
In fig. 8, the heat exchange plate 20 includes a base plate 21 and a current carrier 201 formed on the base plate 21.
The substrate 21 includes a first side B1, a second side B2 along the first direction x, and a third side B3, a fourth side B4 along the second direction y. The first direction x is a horizontal direction, and the second direction y is a vertical direction. The substrate 20 further includes a first surface and a second surface disposed opposite the first surface.
The baffle 201 includes a third convex hull 2013. The figure schematically shows that the flow conductor 201 comprises a row of third convex hulls 2013 along the second direction y. The third convex hull 2013 includes a convex hull 20131 and a convex hull 20132, the two convex hulls are separated from each other, as shown in fig. 9a, and fig. 9a is an enlarged schematic view of the third convex hull 2013. Wherein the convex hull 20131 extends in a third direction m and the convex hull 20132 extends in a fourth direction l. Wherein an extension line along the third direction m, an extension line along the fourth direction l and an extension line along the first direction x intersect each other two by two. At this time, the row of convex hulls 20131 arranged along the second direction y may form a flow guide body group, and the row of convex hulls 20132 arranged along the second direction y may form a flow guide body group.
The convex hulls 20131 and the convex hulls 20132 may have the same or different shapes. Preferably, the orthographic projections of the convex hulls 20131 and the convex hulls 20132 to the base plate 21 can be elongated strips as shown in fig. 9 a. The convex hulls 20131 and 20132 each include two ends, one of which is adjacent to the first side B1 of the base panel 21 and the other of which is adjacent to the second side B2 of the base panel 21. As can be seen from fig. 8 and 9a, the convex hull 20131 and the convex hull 20132 form an "eight" shape, that is, on the side close to the first edge B1 of the base plate 21, the two ends of the convex hull 20131 and the convex hull 20132 are close to each other, and on the side close to the second edge B2 of the base plate 21, the two ends of the convex hull 20131 and the convex hull 20132 are far away from each other.
In this embodiment, the air flow flows from the second side B2 to the first side B1 of the heat exchanger plate 20. When the airflow passes through the third convex hull 2013, since the two ends of the convex hull 20131 and the convex hull 20132 are separated at a position close to the second edge B2 (i.e., the bottom ends of the two convex hulls shown in fig. 8), the airflow can more easily flow in from the bottom ends. And the two ends of the convex hull 20131 and the convex hull 20132 are close to each other at a position close to the first side B1 (i.e. the top end of the two convex hulls shown in fig. 8), when the air flow passes through the position, the air flow forms a vortex at the position due to the smaller opening, namely the contact area between the air flow and the heat exchange plate is increased. Therefore, the air flow and the heat exchange plate can exchange heat fully, and the air flow exchange effect is improved.
In some possible implementations, the convex hulls 20131 and 20132 gradually increase in thickness from a position near the second edge B2 to a position away from the second edge B2 as shown in fig. 8; i.e. the cross-section of the convex hull 20131 in the m-direction and/or the cross-section of the convex hull 20132 in the l-direction, takes the shape as shown in fig. 9 b. In fig. 9B, f' is the position of the convex hull 20131 and the convex hull 20132 near the second edge B2, and f is the position of the convex hull 20131 and the convex hull 20132 away from the second edge B2. By providing the convex hulls with different thicknesses, the flow resistance of the air flow at the convex hulls 20131 and 20132 shown in fig. 8 can be reduced, and the fluid velocity can be increased.
In the present embodiment, the heat exchange plate 21 includes a plurality of third convex hulls 2013 arranged at intervals along the first direction x and along the second direction y. That is, the plurality of third convex hulls 2013 form a third convex hull array on the base plate 21.
It should be noted here that, for the third convex hull 2013 in the same column, the convex hull 20131 and the convex hull 20132 are symmetric about the same symmetry axis. Illustratively, for the third convex hull 2013 in the first row from the left in fig. 8, the convex hulls 20131 and the convex hulls 20132 are symmetrically distributed on two sides of the symmetry axis L shown in fig. 8. Therefore, the air flow can flow along the same direction, uneven distribution of the air flow in the flow channel and among the third convex hulls 2013 caused by the fact that the air flow flows along multiple directions is avoided, the uniformity of air flow distribution is improved, and the heat exchange effect can be further improved.
In some optional implementations of the present embodiment, the convex hulls 20131 and the convex hulls 20132 included in the third convex hull 2013 may also be shaped as shown in fig. 10. Fig. 10 shows a schematic surface structure diagram of another heat exchange plate provided by the embodiment of the present application. In fig. 10, the flow conductors 201 are arranged at intervals along the first direction x, and the flow conductors 201 include a plurality of third convex hulls 2013 arranged at intervals along the second direction y. Unlike the heat exchange plate shown in fig. 8, the pattern formed by the projections of the convex hulls 20131 and the convex hulls 20132 of the heat exchange plate 20 shown in fig. 10 to the base plate 21 may be an ellipse, a water drop, and the like. Fig. 10 schematically shows a situation of an ellipse. In some implementations, the convex hulls 20131 and 20132 are gradually convex from the edge to the middle, i.e., in the shape of the convex hulls shown in fig. 6 and 7.
By providing the third convex hull in the shape shown in fig. 6 and 10, the fluid resistance can be reduced and the fluid velocity can be increased while securing the heat exchange efficiency.
In this embodiment, the heat exchange plate 20 may be integrally formed by a metal material or a non-metal material.
As can be seen from the heat exchanger plate 20 shown in fig. 8 and 10, the convex hull 20131 shown in fig. 8 is a thin strip, and compared with the convex hull 20131 shown in fig. 10, the length of the convex hull 20131 in the third direction m is greater than that of the convex hull 20131 shown in fig. 10. Therefore, the arrangement of the convex hulls in the heat exchange plate 20 shown in fig. 8 is more compact and stronger and has a stronger bearing strength than the shape of the convex hulls in the heat exchange plate 20 shown in fig. 10. Therefore, in some implementations, when the heat exchange plate 20 is a metal material, the heat exchange plate may be formed by using a convex hull structure as shown in fig. 10 because the metal material has a high hardness. In the heat exchange plate as shown in fig. 10, the current carriers 201 may be formed on the same surface, for example, the first surface S1; current carrier 201 may also be formed on different faces. At this time, the current carriers 201 are formed at different intervals. Specifically, in the left-to-right direction shown in fig. 10, the third convex hull 2013 in the first row is formed on the first surface, the third convex hull 2013 in the second row is formed on the second surface, the third convex hull 2013 in the third row is formed on the first surface …, and so on, so that the number of heat exchange plates in the heat exchanger can be reduced, and the cost can be saved.
In some implementations, when the heat exchange plate 20 is made of a non-metal material, since the polymer material forming the non-metal material has low hardness, the heat exchange plate may be formed by using a convex hull structure as shown in fig. 8. At this time, the current carriers 201 may be formed on the same surface to improve the bearing strength of the heat exchange plate.
In some possible implementations, the baffle 201 may include a combination of the third convex hull 2013 shown in fig. 8 and the third convex hull 2013 shown in fig. 10, as shown in fig. 11. Fig. 11 shows a schematic view of another surface structure of a heat exchange plate provided by an embodiment of the present application. In the baffle 201 shown in fig. 11, the third convex hulls 2013 of the shape shown in fig. 8 and the third convex hulls 2013 of the shape shown in fig. 10 are arranged in a staggered manner. At this time, the convex hull 20131 shown in fig. 8 and the convex hull 20131 shown in fig. 10 form the flow conductor groups in the second direction y, and the convex hull 20132 shown in fig. 8 and the convex hull 20132 shown in fig. 10 form the flow conductor groups in the second direction y. As can be seen from fig. 11, the current carrier groups may be distributed in pairs with axial symmetry. The heat exchange plate is manufactured by adopting the structure, and the heat exchange efficiency and the supporting force of the heat exchange plate can be considered. The heat exchange plate with the structure is suitable for manufacturing of metal materials and non-metal materials, and can be selected according to the requirements of application scenes. This configuration may be used, for example, when the gas flow is small but the energy to be exchanged is high.
In some possible implementations, the heat exchanger plate 20 comprises a combination of the current carrier 201 and the support structure 202 as shown in any one of fig. 8, 10 and 11, as shown in fig. 12, and fig. 12 shows a schematic surface structure diagram of the heat exchanger plate formed by the combination of the current carrier 201 and the support structure 202 as shown in fig. 11. The support structure 202 may have the same structure as the support structure 202 shown in fig. 2, and is not described herein again. In this way, the airflow may be further confined within the cavity formed by the two support structures 202, resulting in a more uniform distribution of airflow. Meanwhile, by providing the supporting structure 202, the heat exchange plate 20 may be more stable.
In some possible implementations, as shown in fig. 12, the supporting structure 202 may further be provided with a convex hull 2021, and as shown in fig. 13, the shape of the convex hull 2021 may be any one of those shown in fig. 6. By providing the convex hull 2021 on the support structure 202, the heat exchange efficiency can be further improved.
Please refer to fig. 14, which shows a schematic surface structure diagram of another heat exchange plate according to an embodiment of the present application.
In fig. 14, the heat exchange plate 20 includes a base plate 21 and a plurality of current carriers formed on the base plate 21.
The substrate 21 includes a first side B1, a second side B2 along the first direction x, and a third side B3, a fourth side B4 along the second direction y. The first direction x is a horizontal direction, and the second direction y is a vertical direction. The substrate 20 further includes a first surface and a second surface opposite the first surface.
The plurality of current carriers includes current carrier 201. The baffle 201 includes a fourth convex hull 2014 and a fifth convex hull 2015. Wherein the fourth convex hull 2014 extends in the second direction y and the fifth convex hull 2015 extends in the third direction z. Here, an extension of the third direction z intersects an extension of the second direction y. Specifically, the angle between the third direction z and the second direction y is in the range of [ -15 °, -75 ° ]. The orthogonal projections of the fourth convex hull 2014 and the fifth convex hull 2015 to the substrate 21 may form an ellipse, a water drop, a long strip, and the like.
In some embodiments, the patterns formed by the orthographic projections of the fourth convex hull 2014 and the fifth convex hull 2015 on the substrate 21 may also be as shown in fig. 6, and the specific structure may refer to the related description in fig. 6, which is not repeated herein.
With continuing reference to fig. 14, in fig. 14, along the first direction x, two adjacent convex hulls have different extending directions. By way of example, from left to right, the first row of convex hulls in fig. 14 are the fourth convex hull 2014, the fifth convex hull 2015 and the fourth convex hull 2014 …, i.e., the extending direction of each convex hull and its neighboring convex hulls is different. Therefore, when the air flow flows through the gaps of the convex hulls, vortex flow is formed, the contact area between the air flow and the heat exchange plate is increased, and the heat exchange efficiency is improved.
Further, starting with the first flow conductor 201 on the left, every two flow conductors are used as a group, and the group of flow conductors has a larger distance interval from the adjacent group of flow conductors, so as to form an air flow channel. That is, in fig. 14, a flow channel is formed between the second current carrier 201 and the third current carrier 201. Therefore, the resistance of the air flow flowing in the flow channel of the heat exchange plate can be reduced, and the flowing speed of the air flow is improved.
Based on the heat exchange plate shown in each embodiment, the embodiment of the application further provides a heat exchanger. Specifically, referring to fig. 15, fig. 15 shows a schematic structural diagram of a heat exchanger 1500. The heat exchanger 1500 comprises a support 1502 for structural support of the heat exchanger, a baffle 1501 for protecting the heat exchanger plates and a plurality of stacked heat exchanger plates 1503. As can be seen in fig. 15, the support members 1502 are four in number and are distributed around the heat exchanger 1500 to support the heat exchanger 1500 and form a space for accommodating the heat exchange plate 1503. The baffles 1501 are oppositely disposed and disposed on opposite surfaces of the heat exchanger 1500. By providing the support 1502 and the shield 1501, the heat exchange plate can be supported and protected.
The plurality of heat exchanger plates 1503 shown in fig. 15 may be heat exchanger plates as shown in any of the embodiments above.
Next, the assembly method of the heat exchanger plate will be described in detail with reference to fig. 16, fig. 17(a) -17 (c), and fig. 18(a) -18 (c) by taking the heat exchanger plate shown in fig. 5 as an example. For a more clear illustration of the way in which the heat exchanger plates shown in the present application are assembled, fig. 16 schematically shows 2 adjacent heat exchanger plates. It is to be understood that the application does not limit the number of heat exchange plates included in the heat exchanger, and the number is set according to the requirements of the application scenario.
As shown in fig. 16, the surface structure diagram of the heat exchange plate 161 is the same as the surface structure diagram of the heat exchange plate 20 shown in fig. 5, and the surface structure diagram of the heat exchange plate 162 is rotated by 90 degrees to the right compared with the surface structure diagram of the heat exchange plate 161. In the specific installation process of the heat exchanger, the positioning bosses 1611, 1612, 1613, 1614, 1615 and 1616 of the heat exchange plate 161 are respectively installed in one-to-one correspondence with the positioning bosses 1621, 1622, 1623, 1624, 1625 and 1626 of the heat exchange plate 162. In fig. 16, the flow conductors in the heat exchanger plate 161 comprise a plurality of convex hulls 1618 and the support structure comprises support convex hulls 1617; the flow conductor in the heat exchanger plate 162 comprises a plurality of bosses 1628 and the support structure comprises support bosses 1627.
When the flow conductors and the support structures in the heat exchanger plates are located on the same plane and protrude towards the same direction, the cross-sectional views of the heat exchanger plates 161 and 162 are shown in fig. 17(a) and 17(b), respectively. Specifically, fig. 17(a) is a sectional view taken along the bb 'position in the heat exchange plate 161 shown in fig. 16, and fig. 17(b) is a sectional view taken along the cc' position in the heat exchange plate 162 shown in fig. 16. In fig. 17(a), the first side S1 of the heat exchange plate 161 is provided with bosses 1614, 1615, 1616, and the second side S2 of the heat exchange plate 161 is provided with grooves 1619 at the same positions as the bosses 1614, 1615, 1616. In fig. 17(b), the first side S3 of the heat exchange plate 162 is provided with bosses 1624, 1625, 1626, and a groove 1629 is provided at the same position as the bosses 1624, 1625, 1626 on the second side S4 of the heat exchange plate 162, and the depth of the grooves 1619, 1629 is smaller than the thickness of the substrate. Alternatively, the depth of the groove may be one third to one half of the thickness of the substrate. During the assembly of the heat exchange plate, the bosses 1614, 1615, 1616 provided at the first side S1 of the heat exchange plate 161 are respectively inserted into the grooves 1629 of the second side S4 of the heat exchange plate 162. As shown in fig. 17(c), fig. 17(c) shows a schematic view of the assembly between two heat exchange plates according to the embodiment of the present application. The height of the outward projection of each boss is generally the sum of the depth of the recess and the height of the outward projection of the convex hull 1618. Here, the convex hull 1618 and the supporting convex hull 1617 may have the same height, so that after the bosses 1614, 1615, 1616 are respectively inserted into the grooves 1629, the protruding surfaces of the convex hull 1618 and the supporting convex hull 1617 in the heat exchange plate 161 just abut against the back surface of the heat exchange plate 162, forming a plurality of air flow channels, and uniformly restricting the air flow in the flow channels, so that the distribution of the air flow in the flow channels is more uniform. Simultaneously, can also make and support each other between the heat transfer board, improve the stability and the fastness of heat transfer board. It should be noted that other bosses in the heat exchange plate 161 are embedded into the grooves in the second surface S4 of the heat exchange plate 162 in the embedding manner as described above. It is understood that each adjacent two heat exchange plates in the heat exchanger 1500 shown in fig. 15 can be assembled in the assembly manner shown in fig. 17 (c).
When the flow conductors and the support structures in the heat exchanger plates are located at different levels, the cross-sectional views of heat exchanger plates 161, 162 are shown in fig. 18(a), 18(b), respectively. In particular, fig. 18(a) is a sectional view taken along the bb 'position in the heat exchanger plate 161 shown in fig. 16, and fig. 18(b) is a sectional view taken along the cc' position in the heat exchanger plate 162 shown in fig. 16. Wherein the convex hull 1618 is located on the first side S1 of the heat exchange plate 161 and the support convex hull 1617 is located on the second side S2 of the heat exchange plate 161; the bosses 1628 are located on the first side S3 of the heat exchanger plate 162 and the support bosses 1627 are located on the second side S4 of the heat exchanger plate 162. When the cross-sectional views of the heat exchange plates 161 and 162 are respectively shown in fig. 18(a) and 18(b), the assembling manner between the heat exchange plates 161 and 162 is the same as that between the cross-sectional views shown in fig. 17(a) and 17(b), and the detailed description may refer to the related description of fig. 17(a) and 17(b), which is not repeated herein, and the cross-sectional view after the heat exchange plates 161 and 162 are stacked is shown in fig. 18 (c). It should be noted that the height of the outward protrusion of each boss is generally the sum of the depth of the groove, the height of the outward protrusion of the supporting convex hull 1617 (or 1627), and the height of the outward protrusion of the convex hull 1618 (or 1628). So that after the bosses 1614, 1615, 1616 are respectively inserted into the grooves 1629, the protrusions 1618 of the first side S1 of the heat exchange plate 161 and the protruding surfaces of the supporting protrusions 1627 of the second side S4 of the heat exchange plate 162 abut against each other to form a plurality of air flow passages, and the air flow is uniformly limited in the air flow passages, so that the air flow is more uniformly distributed in the air flow passages. Simultaneously, can also make and support each other between the heat transfer board, improve the stability and the fastness of heat transfer board. It is understood that each adjacent two heat exchange plates in the heat exchanger 1500 shown in fig. 15 can be assembled in the assembly manner shown in fig. 18 (c).
It should be noted here that when no bosses are provided on the heat exchanger plate, the assembly can be performed by using the force of mutual pushing between the bosses in the heat exchanger plate. The method is a conventional assembly method for the existing heat exchange plate, and is not described herein.
In fig. 15, the heat exchanger 1500 includes a first face T1 stacked by a plurality of heat exchange plates 1503, and a second face T2 opposite to the first face T1. A third face T3 and a fourth face T4 opposite to the third face. Wherein the second face T2 and the fourth face T4 are not shown. The side where the first surface T1 is located is a cold air inlet, the side where the second surface T2 is located is an air outlet for cold air heat exchange to become hot air, the side where the third surface T3 is located is a hot air inlet, and the side where the fourth surface T4 is located is an air outlet for hot air after heat exchange and cooling. Wherein the side B1 of the heat exchange plate 161 and the side B1 of the heat exchange plate 162 shown in fig. 16 are located at the side of the first plane T1; edge B2 of heat exchange plate 162, edge B2 of heat exchange plate 162 are located on the side of second face T2; edge B3 of heat exchange plate 161 and edge B3 of heat exchange plate 162 are located on the third face T3 side; the side B4 of the heat exchanger plate 161 and the side B4 of the heat exchanger plate 162 are located on the fourth face T4 side.
When the heat exchanger 1500 shown in fig. 15 is formed by assembling the two heat exchange plates shown in fig. 17(c), the heat exchange principle of the heat exchanger 1500 will be described with reference to fig. 15, fig. 16, and fig. 17(a) to 17 (d). Wherein, fig. 17(d) shows a schematic structural view of a stack of 4 heat exchanger plates. Here, the structure and the assembly direction of the heat exchange plate d1 and the heat exchange plate d3 may be the same as those of the heat exchange plate 162 in fig. 16, 17(b) and 17(c), and the structure and the assembly direction of the heat exchange plate d2 and the heat exchange plate d4 may be the same as those of the heat exchange plate 161 in fig. 16, 17(a) and 17 (c).
The external cold air enters the heat exchanger 1500 from the first face T1, that is, from the air flow channel n formed between the heat exchange plates d1 and d2, and the air flow channel n formed between the d3 and d4 shown in fig. 17 (d). Inside the heat exchanger 1500, the external cold air performs contact heat exchange with the heat exchange plates d1, d2, d3 and d4, performs airflow heat exchange with the air in the air flow channel, and is converted into hot air to be output from the second surface T2 of the heat exchanger 1500. Hot air generated by equipment in the data center enters the heat exchanger 1500 from the third face T3, that is, enters the heat exchanger 1500 from an air flow passage formed between the heat exchange plate d1 shown in fig. 17(d) and the heat exchange plate (not shown) on the upper layer thereof, and an air flow passage formed between the heat exchange plate d2 and the heat exchange plate d3 (the air flow passage is not shown in the figure because it is blocked by the supporting protrusion in fig. 17 (d)). Inside the heat exchanger 1500, the hot air is subjected to contact heat exchange with the heat exchange plates d1, d2, and d3, and subjected to airflow heat exchange with the air in the air flow channel, and then converted into cooled air, that is, fresh air required by the data center, and output from the fourth surface T4 of the heat exchanger 1500. Therefore, the heat exchanger 1500 realizes the exchange of hot air and cold air, and achieves the purpose of reducing the air temperature of the data center. That is, the air channels of the external cold air and the hot air generated by the equipment in the data center are respectively disposed at different layers, and the external cold air and the hot air generated by the equipment in the data center respectively enter the heat exchanger 1500 through the air channels at different layers, exchange heat with the heat exchange plate and the air in the air channels, and then flow out.
When the heat exchanger 1500 shown in fig. 15 is formed by assembling the two heat exchange plates shown in fig. 18(c), the heat exchange principle of the heat exchanger 1500 will be described with reference to fig. 15, fig. 16, and fig. 18(a) to 18 (d). Wherein, fig. 18(d) shows a schematic structural view of a stack of 4 heat exchanger plates. Here, the structure and the assembly direction of the heat exchange plate d1 and the heat exchange plate d3 may be the same as those of the heat exchange plate 162 in fig. 16, 18(b) and 18(c), and the structure and the assembly direction of the heat exchange plate d2 and the heat exchange plate d4 may be the same as those of the heat exchange plate 161 in fig. 16, 18(a) and 18 (c).
The external cold air enters the heat exchanger 1500 from the first face T1, that is, from the air flow channel n formed between the heat exchange plate d1 and the heat exchange plate d2, the air flow channel n formed between the heat exchange plate d2 and the heat exchange plate d3, and the air flow channel n formed between the heat exchange plate d3 and the heat exchange plate d4 shown in fig. 18 (d). Inside the heat exchanger 1500, the external cold air performs contact heat exchange with the heat exchange plates d1, d2, d3 and d4, performs airflow heat exchange with the air in the air flow channel, and is converted into hot air to be output from the second surface T2 of the heat exchanger 1500. Hot air generated by equipment in the data center enters the heat exchanger 1500 from the third face T3, that is, enters the heat exchanger 1500 from the air flow passage formed between the heat exchange plate d1 and the heat exchange plate d2 shown in fig. 18(d), the air flow passage formed between the heat exchange plate d2 and the heat exchange plate d3, and the air flow passage formed between the heat exchange plate d3 and the heat exchange plate d4 (the air flow passage of hot air is not shown in fig. 18 (d)). Inside the heat exchanger 1500, the hot air performs contact heat exchange with the heat exchange plates d1, d2, d3, and d4, performs airflow heat exchange with the air in the air flow channel, and is converted into cooled air, that is, fresh air required by the data center, and is output from the fourth surface T4 of the heat exchanger 1500. Therefore, the heat exchanger 1500 realizes the exchange of hot air and cold air, and achieves the purpose of reducing the air temperature of the data center. That is, the air channels of the external cold air and the hot air generated by the equipment in the data center may be disposed in the same layer, and the external cold air and the hot air generated by the equipment in the data center may enter the heat exchanger 1500 through the air channels in the same layer, exchange heat with the heat exchange plate and the air in the air channels, and then flow out.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (12)

1. A heat exchanger plate, comprising:
a substrate including a first side along a first direction and a second side along a second direction, the first direction and the second direction being different directions;
the first flow deflectors are arranged on the substrate and used for guiding the flow of air flow, wherein a plurality of first flow deflectors are arranged in a row at intervals along the first direction, and a plurality of rows of first flow deflectors are arranged at intervals along the second direction;
the supporting structure is arranged on the substrate, extends along the first direction, and is arranged with each row of the first flow conductors at intervals along the second direction.
2. A heat exchanger plate according to claim 1,
the heat exchange plate further comprises a second flow guide body arranged on the base plate;
the first flow conductors and the second flow conductors are arranged in a line at intervals along the first direction to form a plurality of flow conductor groups arranged along the second direction, wherein the first flow conductors and the second flow conductors are arranged at the same positions in each line of the flow conductor groups.
3. A heat exchanger plate according to claim 2,
along the second direction, the flow deflectors are arranged in pairs in an axisymmetric manner;
in the paired fluid guide groups, the first fluid guide and the second fluid guide in one of the columns of fluid guide groups extend in a third direction, the first fluid guide and the second fluid guide in the other column of fluid guide groups extend in a fourth direction, and the first direction, the second direction, the third direction, and the fourth direction are different directions.
4. A heat exchanger plate according to claim 3, wherein pairs of said flow conductor sets and said support structures are spaced apart along said second direction.
5. A heat exchanger plate according to claim 1,
the heat exchange plate further comprises a third flow guiding body arranged on the base plate;
the first flow conductors and the third flow conductors are arranged in a line at intervals along the first direction to form a plurality of flow conductor groups arranged along the second direction, wherein the first flow conductors and the second flow conductors are arranged at different positions in the adjacent line of flow conductor groups.
6. A heat exchanger plate according to claim 5,
the first current carrier extends in the first direction, and the third current carrier extends in a third direction, wherein the first direction and the third direction are different directions.
7. A heat exchanger plate according to claim 1,
the first current carrier and the support structure respectively protrude toward different surfaces of the substrate.
8. A heat exchanger plate according to claim 1 or 7,
and a reinforcing structure is connected between every two first flow deflectors which are arranged at intervals.
9. A heat exchanger plate according to claim 1,
the base plate is also provided with a positioning boss.
10. A heat exchanger plate according to claim 1,
the pattern formed by orthographic projection of the first current carrier to the substrate includes one of: circular, oval, drop-shaped, strip-shaped, triangular.
11. A heat exchanger plate according to claim 1,
the substrate, the first flow conductor and the support structure are integrally formed; and
the material forming the heat exchanger plate comprises one of: metallic material, non-metallic material.
12. A heat exchanger, characterized in that it comprises a plurality of heat exchanger plates according to any of claims 1-11.
CN201911077938.2A 2019-11-06 2019-11-06 Heat exchange plate and heat exchanger comprising same Active CN110926256B (en)

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CN201911077938.2A CN110926256B (en) 2019-11-06 2019-11-06 Heat exchange plate and heat exchanger comprising same
EP20885438.0A EP4023997B1 (en) 2019-11-06 2020-11-05 Heat exchange plate and heat exchanger containing same
PCT/CN2020/126857 WO2021088940A1 (en) 2019-11-06 2020-11-05 Heat exchange plate and heat exchanger containing same
US17/696,013 US20220205738A1 (en) 2019-11-06 2022-03-16 Heat exchange plate and heat exchanger including heat exchange plate

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US20220205738A1 (en) 2022-06-30
WO2021088940A1 (en) 2021-05-14
EP4023997A1 (en) 2022-07-06
EP4023997B1 (en) 2024-05-08
CN110926256B (en) 2022-03-08

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