HEAT EXCHANGE PLATE AND HEAT EXCHANGER INCLUDING HEAT EXCHANGE PLATE
A heat exchange plate which includes: a base board, where the base board includes a first edge along a first direction and a second edge along a second direction, and the first direction and the second direction are different directions; first flow guiders, where the first flow guiders are disposed on the base board, and are configured to guide flowing of air flows, where a plurality of the first flow guiders are arranged along the first direction at intervals into one column, and a plurality of columns of the first flow guiders are arranged along the second direction at intervals; and supporting structures, where the supporting structures are disposed on the base board, the supporting structures extend along the first direction, and the supporting structures and each column of the first flow guiders are arranged alternately along the second direction at intervals.
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This application is a continuation of International Application No. PCT/CN2020/126857, filed on Nov. 5, 2020, which claims priority to Chinese Patent Application No. 201911077938.2, filed on Nov. 6, 2019. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties.
TECHNICAL FIELDEmbodiments relate to heat exchanger technologies, such as a heat exchange plate and a heat exchanger including the heat exchange plate.
BACKGROUNDWith the development of artificial intelligence technologies and the advent of the big data era, data centers need to process a surge of data, and devices used for data processing release more heat energy. How to reduce heat of a data center becomes a problem that urgently needs to be resolved.
In a conventional technology, a plate heat exchanger may be used to implement exchange between a hot air flow released by a device in a data center and an external cold air flow. In the plate heat exchanger, surface characteristics (for example, a surface pattern and pattern arrangement) of a heat exchange plate affect heat exchange efficiency of air passages on two sides of the heat exchanger.
In a related technology, convex hull structures may be formed on a surface of the heat exchange plate to increase a heat transfer coefficient of the heat exchange plate. The convex hull structures may include vertical-bar-shaped convex hulls or circular convex hulls arranged in an array. The convex hull structures may be arranged in a sparse or dense manner. When the convex hull structures are arranged in a sparse arrangement manner, air flow distribution may be uneven, and a utilization rate of the heat exchange plate is reduced. When the convex hull structures are arranged in the dense manner, flow resistance of air flows is increased, and consequently, a flow speed of the air flows is reduced. Further, flow efficiency is reduced. In conclusion, how to improve heat exchange efficiency of a heat exchanger for air flows becomes a problem.
SUMMARYAccording to a heat exchange plate provided, heat exchange efficiency of the heat exchange plate for air flows can be improved by disposing first flow guiders or a combination of the first flow guiders and second flow guiders.
To resolve the foregoing problems, the following solutions may be used.
According to a first aspect, an embodiment may provide a heat exchange plate, including: a base board, where the base board includes a first edge along a first direction and a second edge along a second direction, and the first direction and the second direction are different directions; first flow guiders, where the first flow guiders are disposed on the base board, and are configured to guide flowing of air flows, where a plurality of the first flow guiders are arranged along the first direction at intervals into one column, and a plurality of columns of the first flow guiders are arranged along the second direction at intervals; and supporting structures, where the supporting structures are disposed on the base board, the supporting structures extend along the first direction, and the supporting structures and each column of the first flow guiders are arranged alternately along the second direction at intervals.
By forming the first flow guiders and the supporting structures on a surface of the base board, air passing through a heat exchanger can be guided so that air flows flow along a flow guide direction. In addition, the heat exchange plate can be further evenly separated into a plurality of cavities, so that the air flows can be evenly limited in the cavities, to avoid uneven distribution of the air flows on the heat exchange plate and improve a utilization rate of the heat exchange plate, thereby improving heat exchange efficiency.
With reference to the first aspect, in a possible implementation, the heat exchange plate further includes second flow guiders disposed on the base board; and the first flow guiders and the second flow guiders are arranged along the first direction at intervals into one column, to form a plurality of columns of flow guider groups arranged along the second direction, where location arrangements of the first flow guiders and the second flow guiders in each column of the flow guider groups are the same.
The flow guider groups including the first flow guiders and the second flow guiders, may be disposed, so that the air flows can form vortexes at some positions of the heat exchange plate, thereby increasing a contact area between the air flows and the heat exchange plate. In this way, heat exchange between the air flows and the heat exchange plate can be performed sufficiently, thereby improving an air flow exchange effect.
With reference to the first aspect, in a possible implementation, along the second direction, the flow guider groups are axis-symmetrically arranged in pairs; and in the flow guider groups in pairs, first flow guiders and second flow guiders in one column of the flow guider groups extend along a third direction, and first flow guiders and second flow guiders in the other column of the flow guider groups extend along a fourth direction, and the first direction, the second direction, the third direction, and the fourth direction are different directions.
The flow guider groups may be axis-symmetrically arranged in pairs, so that the air flows can flow along a same direction, to avoid uneven distribution of the air flows in flow passages and between third convex hulls caused by the air flows flowing along a plurality of directions, thereby improving evenness of air flow distribution, and further improving a heat exchange effect.
With reference to the first aspect, in a possible implementation, the flow guider groups in pairs and the supporting structures are arranged alternately along the second direction at intervals.
With reference to the first aspect, in a possible implementation, the heat exchange plate further includes third flow guiders disposed on the base board; and the first flow guiders and the third flow guiders are arranged along the first direction at intervals into one column, to form a plurality of columns of flow guider groups arranged along the second direction, where location arrangements of the first flow guiders and the third flow guiders in adjacent columns of the flow guider groups are different.
The flow guider groups may include the first flow guiders and the third flow guiders are disposed, so that the air flows can form vortexes when flowing through gaps between the convex hulls, to increase the contact area between the air flows and the heat exchange plate, thereby improving the heat exchange efficiency.
With reference to the first aspect, in a possible implementation, the first flow guiders extend along the first direction, the third flow guiders extend along a third direction, and the first direction and the third direction are different directions.
With reference to the first aspect, in a possible implementation, the first flow guiders and the supporting structures separately protrude toward different surfaces of the base board.
The first flow guiders and the supporting structures may separately protrude toward different surfaces of the base board, so that the air flows can exchange heat on two surfaces of the heat exchange plate, thereby reducing a quantity of heat exchange plates required in the heat exchanger and reducing manufacturing costs of the heat exchanger.
With reference to the first aspect, in a possible implementation, a reinforcing structure is connected between every two of the first flow guiders arranged at intervals.
The reinforcing structure is disposed between every two flow guiders, so that the first flow guiders are more stable. This helps improve stability of the heat exchange plate, and further helps improve heat exchange performance of the heat exchange plate.
With reference to the first aspect, in a possible implementation, positioning bosses are further disposed on the base board.
With reference to the first aspect, in a possible implementation, the heat exchange plate further includes a plurality of positioning bosses configured to assemble the heat exchange plate with an adjacent heat exchange plate, and the plurality of positioning bosses are disposed on the base board.
The positioning bosses may be disposed on the base board, so that assembly between the heat exchange plates can be facilitated, thereby further improving stability between the heat exchange plates, and making the heat exchanger more secure.
With reference to the first aspect, in a possible implementation, a pattern formed by an orthographic projection of the first flow guider onto the base board includes at least one of the following: a circle, an oval, a water drop, a strip, and a triangle.
With reference to the first aspect, in a possible implementation, the base board, the first flow guiders, and the supporting structures are integrally formed; and a material forming the heat exchange plate includes at least one of the following: a metal material and a non-metal material.
According to a second aspect, an embodiment provides a heat exchanger, including a plurality of heat exchange plates according to the first aspect.
To describe the solutions in embodiments more clearly, the following briefly describes the accompanying drawings. It is clear that the accompanying drawings in the following description show merely some embodiments, and a person of ordinary skill in the art may derive other drawings from these accompanying drawings without creative efforts.
The following describes the solutions in embodiments with reference to the accompanying drawings. It is clear that the described embodiments are some but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope.
“First”, “second”, or the like does not indicate any order, quantity, or importance, but is used only for distinguishing between different components. Likewise, “a/an”, “one”, or the like does not indicate a quantity limitation either but is intended to indicate that at least one exists. “Connection”, “link”, or the like is not limited to a physical or mechanical connection, but may include an electrical connection, whether directly or indirectly.
“Unit” mentioned herein may be a functional structure that is divided based on logic, and the “unit” may be implemented only by hardware or implemented by a combination of hardware and software.
In embodiments, the term “and/or” describes an association relationship between associated objects and represents that three relationships may exist. For example, A and/or B may represent the following three cases: only A exists, both A and B exist, and only B exists.
In addition, in embodiments, the word “example” or “for example” is used to represent giving an example, an illustration, or a description. Any embodiment described as an “example” or “for example” should not be explained as being more preferred or having more advantageous than another embodiment. Use of the word such as “example” or “for example” is intended to present a related concept in a manner.
In the description of embodiments, unless otherwise stated, “a plurality of” means two or more than two. For example, a plurality of processing units are two or more processing units. A plurality of systems are two or more systems.
To make the objectives, solutions, and advantages clearer, the following clearly and completely describes the solutions with reference to the accompanying drawings. It is clear that the described embodiments are merely a part rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on embodiments without creative efforts shall fall within the scope of the described embodiments.
Based on problems of the surface structures of the foregoing existing heat exchange plates, a heat exchange plate and a heat exchanger may include the heat exchange plate. Air flows are guided by disposed first flow guiders and supporting structures, to improve heat exchange efficiency of the heat exchanger, and reduce air flow resistance.
It should be noted first that, the flow guider may include one convex hull (for example, a convex hull 2011 shown in
The base board 21 includes a first edge B1 and a second edge B2 that are along a first direction x and a third edge B3 and a fourth edge B4 that are along a second direction y. The first direction x is a horizontal direction, and the second direction y is a vertical direction. The base board 21 further includes a first surface S1 and a second surface opposite to the first surface S1. The second surface is not shown in
The flow guider 201 includes a plurality of convex hulls 2011 arranged along the second direction y at intervals. A pattern formed by an orthographic projection of the convex hull 2011 onto the base board 21 may include but not limited to an oval, a water drop, a strip, and a triangle. The plurality of convex hulls 2011 may have same or different shapes or may have same or different sizes.
The supporting structure 202 extends along the second direction y. Herein, the supporting structures may alternatively be referred to as supporting convex hulls because the supporting structures protrude outwards relative to the base board 21. As shown in
It should be noted herein that, along the second direction y, the supporting structure may alternatively be a plurality of elongated convex hulls arranged at intervals, and an arrangement manner of the plurality of elongated convex hulls included in the supporting structure may be the same as an arrangement manner of the convex hulls in the flow guider 201. In other words, the supporting structure 202 shown in
In the heat exchange plate 20 shown in
In the heat exchange plate 20 shown in
In a possible implementation, the flow guiders 201 and the supporting structures 202 may be formed on different surfaces. For example, the flow guiders 201 are formed on a second surface S2, and the supporting structures 202 are formed on the first surface S1.
In this embodiment, the base board 21, the flow guiders 201, and the supporting structures 202 may be integrally formed. In other words, the base board 21, the flow guiders 201, and the supporting structures 202 are made of a same material. Herein, the material that forms the heat exchange plate 20 may be a metal material or may be a non-metal material. The metal material includes but is not limited to: aluminum, copper, and an alloy material (for example, an aluminum alloy) obtained by mixing various metal materials. The non-metal material includes but is not limited to PP (Polypropylene, polypropylene), PVC (polyvinyl chloride), PS (polystyrene), PC (polycarbonate), and a material obtained by mixing various non-metal materials based on a proportion.
Because the metal material has high hardness, a height of outward protrusion of the formed convex hulls is limited. In a process of assembling heat exchange plates made of a metal material into a heat exchanger, a large interval may be provided between every two heat exchange plates, the interval may be greater than the height of outward protrusion of the convex hulls and may be twice the height of outward protrusion of the convex hulls. Therefore, when the heat exchange plate is made of a metal material, a structure in the cross-sectional view shown in
The non-metal materials PP, PVC, PS, PC, and the like are all polymer materials, and have characteristics of low hardness and high flexibility compared with metal materials. Therefore, convex hulls formed by using the non-metal materials may have a large thickness of protrusion. Therefore, when the heat exchange plate is made of a non-metal material, the structure in the cross-sectional view shown in
In some optional implementations, when the heat exchange plate is manufactured by using a non-metal material, to further improve stability of the heat exchange plate 20, reinforcing structures for connecting the convex hulls 2011 of the flow guiders 201 may be disposed between the convex hulls 2011, where the reinforcing structures are convex hulls 2012.
In some optional implementations, when the heat exchange plate with the cross-sectional structure shown in
Optionally, the bosses 203 may be disposed on the supporting structures 202.
The bosses 203 on the heat exchange plate 20 may be configured to position and assemble the heat exchange plate 20 with an adjacent heat exchange plate 20. On the other surface on which no boss 203 is disposed and that is of the heat exchange plate 20, grooves are further provided at positions the same as the positions of the bosses 203. In a process of assembling the heat exchange plates 20, bosses 203 of a first heat exchange plate are embedded into grooves of a second heat exchange plate adjacent to the first heat exchange plate. A depth of the groove may be one third to one half of a thickness of the base board, so that the bosses 203 of the first heat exchange plate and bosses 203 of the second heat exchange plate press against each other. A height of unembedded parts of the bosses 203 is the same as a height of outward protrusion of the convex hulls 2011. Therefore, a height of outward protrusion of the bosses 203 may be a sum of the height of outward protrusion of the convex hulls 2011 and the depth of the grooves.
In some optional implementations of this embodiment, a thickness of the convex hull 2011 gradually increases from an edge to the middle. In this optional implementation, an orthographic projection of the convex hull 2011 onto the base board 21 is in shapes shown in
A structure of the convex hull 2011 in a projection shape shown in
Structures of an elongated convex hull and a water-drop-shaped convex hull are similar to the structure of the oval convex hull, except that shapes of boundaries surrounding the first surface and the second surface are different. Details are not described herein again.
Continue to refer to
In
The base board 21 includes a first edge B1 and a second edge B2 that are along a first direction x and a third edge B3 and a fourth edge B4 that are along a second direction y. The first direction x is a horizontal direction, and the second direction y is a vertical direction. The base board 21 further includes a first surface and a second surface opposite to the first surface.
The flow guider 201 includes third convex hulls 2013.
The convex hull 20131 and the convex hull 20132 may have same or different shapes. Orthographic projections of the convex hull 20131 and the convex hull 20132 onto the base board 21 may be in an elongated shape shown in
In this embodiment, air flows flow from the second edge B2 of the heat exchange plate 20 to the first edge B1 of the heat exchange plate 20. When the air flows pass through the third convex hull 2013, because two ends of the convex hull 20131 and the convex hull 20132 are separated from each other at a position close to the second edge B2 (namely, bottom ends of two convex hulls shown in
In some possible implementations, thicknesses of the convex hulls 20131 and the convex hulls 20132 gradually increase from the position close to the second edge B2 shown in
In this embodiment, the heat exchange plate 21 includes a plurality of third convex hulls 2013 arranged along the first direction x and the second direction y at intervals. In other words, the plurality of third convex hulls 2013 form a third convex hull array on the base board 21.
It should be noted herein that, for the third convex hulls 2013 in a same column, the convex hulls 20131 and the convex hulls 20132 are symmetrical about a same symmetry axis. For example, for the third convex hulls 2013 in the first column from the left in
In some optional implementations of this embodiment, the convex hull 20131 and the convex hull 20132 included in the third convex hull 2013 may alternatively be in a shape shown in
By setting the third convex hulls into the shapes shown in
In this embodiment, the heat exchange plate 20 may be integrally formed by using a metal material or may be integrally formed by using a non-metal material.
It can be learned from the heat exchange plates 20 shown in
In some implementations, when the heat exchange plate 20 is made of a non-metal material, because a polymer material forming the non-metal material has low hardness, in this case, the heat exchange plate may be formed by using the convex hull structures shown in
In some possible implementations, the flow guider 201 may include a combination of the third convex hulls 2013 shown in
In some possible implementations, the heat exchange plate 20 includes a combination of the flow guiders 201 shown in any one of
In some possible implementations, convex hulls 2021 may alternatively be disposed on the supporting structures 202 shown in
Continue to refer to
In
The base board 21 includes a first edge B1 and a second edge B2 that are along a first direction x and a third edge B3 and a fourth edge B4 that are along a second direction y. The first direction x is a horizontal direction, and the second direction y is a vertical direction. The base board 21 further includes a first surface S1 and a second surface opposite to the first surface S1.
The plurality of flow guiders may include flow guiders 201. The flow guider 201 includes fourth convex hulls 2014 and fifth convex hulls 2015. The fourth convex hull 2014 extends along the second direction y, and the fifth convex hull 2015 extends along a third direction z. Herein, an extending line of the third direction z intersects an extending line of the second direction y. A range of an included angle between the third direction z and the second direction y is [−15°, −75°]. A pattern formed by an orthographic projection of each of the fourth convex hull 2014 and the fifth convex hull 2015 onto the base board 21 may be an oval, a water drop, a strip, or the like.
In some implementations, the pattern formed by the orthographic projection of each of the fourth convex hull 2014 and the fifth convex hull 2015 onto the base board 21 may alternatively be shown in
Still referring to
Further, starting with the 1st flow guider 201 on the left, every two flow guiders are used as one group, and there is a large distance interval between this group of flow guiders and an adjacent group of flow guiders, to form an air flow passage. That is, in
Based on the heat exchange plates shown in the foregoing embodiments, an embodiment further provides a heat exchanger.
The plurality of heat exchange plates 1503 shown in
The heat exchange plate shown in
As shown in
When first flow guiders and second flow guiders in the heat exchange plates are located on a same surface and protrude toward a same direction, cross-sectional views of the heat exchange plate 161 and the heat exchange plate 162 are shown in
When the first flow guiders and the second flow guiders in the heat exchange plates are located on different surfaces, the cross-sectional views of the heat exchange plate 161 and the heat exchange plate 162 are shown in
It should be noted herein that, when no boss is disposed on the heat exchange plates, mutually pressing force between the convex hulls in the heat exchange plates may be used for assembly. This method is a common manner of assembling existing heat exchange plates. Details are not described herein.
In
When the heat exchanger 1500 shown in
External cold air enters the heat exchanger 1500 from the first surface T1 may enter the heat exchanger 1500 from an air flow passage n formed between the heat exchange plates d1 and d2 shown in
When the heat exchanger 1500 shown in
External cold air enters the heat exchanger 1500 from the first surface T1 may enter the heat exchanger 1500 from an air flow passage n formed between the heat exchange plates d1 and d2 shown in
The foregoing describes embodiments with reference to the accompanying drawings. The foregoing implementations are merely examples. A person of ordinary skill in the art may further make many modifications without departing from the protection scope of the claims, and all the modifications shall fall within the protection scope.
Claims
1. A heat exchange plate, comprising:
- a base board comprising a first edge along a first direction and a second edge along a second direction, and the first direction and the second direction are different directions;
- first flow guiders, wherein the first flow guiders are disposed on the base board, and are configured to guide air flows, wherein the first flow guiders are arranged along the first direction at intervals into one column, and a plurality of columns of the first flow guiders are arranged along the second direction at intervals; and
- supporting structures, wherein the supporting structures are disposed on the base board, the supporting structures extend along the first direction, and the supporting structures and each column of the first flow guiders are arranged alternately along the second direction at intervals.
2. The heat exchange plate according to claim 1, wherein the heat exchange plate further comprises:
- second flow guiders disposed on the base board, and the first flow guiders and the second flow guiders are arranged along the first direction at intervals into one column to form a plurality of columns of flow guider groups arranged along the second direction, wherein location arrangements of the first flow guiders and the second flow guiders in each column of the flow guider groups are the same.
3. The heat exchange plate according to claim 2, wherein along the second direction, the flow guider groups are axis-symmetrically arranged in pairs, and in the flow guider groups in pairs, first flow guiders and second flow guiders in one column of the flow guider groups extend along a third direction, and first flow guiders and second flow guiders in the other column of the flow guider groups extend along a fourth direction, and the first direction, the second direction, the third direction, and the fourth direction are different directions.
4. The heat exchange plate according to claim 3, wherein the flow guider groups in pairs and the supporting structures are arranged alternately along the second direction at intervals.
5. The heat exchange plate according to claim 1, wherein the heat exchange plate further comprises:
- third flow guiders disposed on the base board, and the first flow guiders and the third flow guiders are arranged along the first direction at intervals into one column to form a plurality of columns of flow guider groups arranged along the second direction, wherein location arrangements of the first flow guiders and the third flow guiders in adjacent columns of the flow guider groups are different.
6. The heat exchange plate according to claim 5, wherein the first flow guiders extend along the first direction, the third flow guiders extend along a third direction, and the first direction and the third direction are different directions.
7. The heat exchange plate according to claim 1, wherein the first flow guiders and the supporting structures separately protrude toward different surfaces of the base board.
8. The heat exchange plate according to claim 1, wherein a reinforcing structure is connected between every two of the first flow guiders arranged at intervals.
9. The heat exchange plate according to claim 1, wherein positioning bosses are further disposed on the base board.
10. The heat exchange plate according to claim 1, wherein a pattern formed by an orthographic projection of the first flow guider onto the base board comprises at least one of the following: a circle, an oval, a water drop, a strip, and a triangle.
11. The heat exchange plate according to claim 1, wherein the base board, the first flow guiders, and the supporting structures are integrally formed, and a material forming the heat exchange plate comprises at least one of the following: a metal material and a non-metal material.
12. A heat exchanger, comprising a plurality of heat exchange plates, wherein each heat exchange plate comprises:
- a base board comprising a first edge along a first direction and a second edge along a second direction, and the first direction and the second direction are different directions;
- first flow guiders, wherein the first flow guiders are disposed on the base board, and are configured to guide flowing of air flows, wherein the first flow guiders are arranged along the first direction at intervals into one column, and a plurality of columns of the first flow guiders are arranged along the second direction at intervals; and
- supporting structures, wherein the supporting structures are disposed on the base board, the supporting structures extend along the first direction, and the supporting structures and each column of the first flow guiders are arranged alternately along the second direction at intervals.
Type: Application
Filed: Mar 16, 2022
Publication Date: Jun 30, 2022
Applicant: Huawei Digital Power Technologies Co., Ltd. (District)
Inventors: Zonghao YANG (Xi'an), Malin LI (Xi'an), Jihui LIU (Dongguan)
Application Number: 17/696,013