Heat exchanger

Abstract

The utility model discloses a heat exchanger and relates to the technical field of heat exchangers. The heat exchanger comprises a first plate sheet, a second plate sheet and a first heat exchange fin. The first plate piece and the second plate piece are arranged in an overlapped mode and jointly form a first heat exchange flow channel, the first heat exchange fin is arranged in the first heat exchange flow channel and comprises a fin body, a protruding part and a staggered tooth part, the protruding part and the staggered tooth part are arranged on the fin body in a protruding mode, the fin body is welded to the first plate piece, and the protruding part is welded to the second plate piece. And the staggered tooth part is used for guiding the heat exchange medium. Compared with the prior art, the heat exchanger has the advantages that due to the fact that the protruding parts and the staggered tooth parts which are arranged on the fin bodies in the protruding mode are adopted, heat exchange media can be promoted to form turbulent flow in the first heat exchange flow channels, the heat exchange effect is improved, the adjacent plates can be supported and fixed, the structural strength is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and in particular to a heat exchanger. Background Art

[0002] A plate heat exchanger is a high-efficiency heat exchanger made up of a series of stacked metal plates. Flow channels are formed between the plates, wherein the flow channels include a first heat exchange channel and a second heat exchange channel, which are arranged alternately in sequence. The first heat exchange channel is used to circulate the heat exchange medium, and the second heat exchange channel is used to circulate the fluid to be heat exchanged. The fluid to be heat exchanged and the heat exchange medium exchange heat through the plates. However, during the flow of the heat exchange medium, due to the regular shape of the first heat exchange channel, the heat exchange medium will undergo laminar flow, causing the heat exchange medium to flow in layers and not mix with each other, directly affecting the heat exchange effect of the heat exchange medium. In addition, adjacent plates are spaced apart and have no supporting fixed structure, resulting in a low structural strength of the entire plate heat exchanger, which is prone to deformation and affects its service life.

[0003] In view of this, it is particularly important to design and manufacture a heat exchanger with good heat exchange effect and high structural strength, especially in heat exchanger production. Utility Model Content

[0004] The purpose of the utility model is to provide a heat exchanger that can promote the formation of turbulent flow of heat exchange medium in the first heat exchange channel to improve the heat exchange effect, and can support and fix adjacent plates to improve structural strength and extend service life.

[0005] The present invention is achieved by adopting the following technical solutions.

[0006] A heat exchanger includes a first plate, a second plate and a first heat exchange fin. The first plate and the second plate are arranged in an overlapping manner and together form a first heat exchange channel. The first heat exchange fin is arranged in the first heat exchange channel. The first heat exchange fin includes a fin body and a raised portion and a staggered tooth portion protruding from the fin body. The fin body is welded to the first plate, the raised portion is welded to the second plate, and the staggered tooth portion is used to guide the heat exchange medium.

[0007] Optionally, a protruding height of the protruding portion is the same as a protruding height of the staggered tooth portion.

[0008] Optionally, there are multiple protrusions, and the multiple protrusions are arranged at intervals.

[0009] Optionally, the multiple protrusions include multiple first protrusions and multiple second protrusions, the multiple first protrusions are located at one end of the fin body, the multiple second protrusions are located at the other end of the fin body, and the staggered teeth are arranged between the multiple first protrusions and the multiple second protrusions.

[0010] Optionally, the top of the raised portion is planar, and the top of the raised portion is welded to the second plate.

[0011] Optionally, the raised portion is in a frustum shape, and has a large end and a small end relatively arranged therebetween, the large end is connected to the fin body, and the small end is welded to the second plate.

[0012] Optionally, the staggered tooth portion includes a plurality of first tooth portions and a plurality of second tooth portions, the plurality of first tooth portions and the plurality of second tooth portions are alternately arranged in sequence and connected to each other, the first tooth portion and the second tooth portion are staggered, the first tooth portion is provided with a first guide hole, and the second tooth portion is provided with a second guide hole, and both the first guide hole and the second guide hole are used for allowing heat exchange medium to flow through.

[0013] Optionally, there are multiple staggered tooth portions, and the multiple staggered tooth portions are arranged in parallel and at intervals.

[0014] Optionally, the number of the first plates and the number of the second plates are both multiple, and the multiple first plates and the multiple second plates are arranged in sequence overlapping, a first heat exchange channel is formed between the first plate and an adjacent second plate, and a second heat exchange channel is formed between the first plate and another adjacent second plate; the number of the first heat exchange fins is multiple, and each first heat exchange fin is arranged in a first heat exchange channel; the heat exchanger also includes multiple second heat exchange fins, and each second heat exchange fin is arranged in a second heat exchange channel.

[0015] Optionally, the main body of the first plate is planar, and the fin body is fitted and welded to the main body.

[0016] The heat exchanger provided by the utility model has the following beneficial effects:

[0017] The heat exchanger provided by the present invention comprises a first plate and a second plate arranged in an overlapping manner, together forming a first heat exchange channel. A first heat exchange fin is disposed within the first heat exchange channel. The first heat exchange fin comprises a fin body, a raised portion protruding from the fin body, and a staggered tooth portion. The fin body is welded to the first plate, and the raised portion is welded to the second plate. The staggered tooth portion is used to guide the heat exchange medium. Compared with the prior art, the heat exchanger provided by the present invention, due to the use of raised portions and staggered teeth protruding from the fin body, can promote turbulent flow of the heat exchange medium within the first heat exchange channel, improving heat exchange efficiency. It can also support and secure adjacent plates, improving structural strength and extending service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic structural diagram of a heat exchanger provided in an embodiment of the present utility model;

[0020] Figure 2 An exploded view of a heat exchanger provided in an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a first heat exchange fin in a heat exchanger provided in an embodiment of the present utility model;

[0022] Figure 4 for Figure 2 A partial enlarged view of IV.

[0023] Icon: 100-heat exchanger; 110-first plate; 120-second plate; 130-first heat exchange fin; 131-fin body; 132-protrusion; 133-staggered tooth portion; 134-first protrusion; 135-second protrusion; 136-large end; 137-small end; 138-first tooth portion; 1381-first guide hole; 139-second tooth portion; 1391-second guide hole; 140-first heat exchange channel; 150-second heat exchange channel. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of this utility model, it should be noted that the terms "inner," "outer," "upper," "lower," and "horizontal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0028] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0030] First embodiment

[0031] Please refer to Figures 1 to 4 The present invention provides a heat exchanger 100 for heat exchange. The heat exchanger 100 can promote turbulence of the heat exchange medium in the first heat exchange channel 140, thereby improving the heat exchange effect, and can support and fix adjacent plates, thereby improving structural strength and extending service life.

[0032] The heat exchanger 100 includes a plurality of first plates 110 , a plurality of second plates 120 , and a plurality of first heat exchange fins 130 . A plurality of first plates 110 and a plurality of second plates 120 are arranged in an overlapping manner, a first heat exchange channel 140 is formed between the first plate 110 and an adjacent second plate 120, and a second heat exchange channel 150 is formed between the first plate 110 and another adjacent second plate 120, that is, the plurality of first plates 110 and the plurality of second plates 120 together form a plurality of first heat exchange channels 140 and a plurality of second heat exchange channels 150, and the plurality of first heat exchange channels 140 and the plurality of second heat exchange channels 150 are arranged alternately in sequence, wherein the plurality of first heat exchange channels 140 are connected in sequence, and the plurality of first heat exchange channels 140 are all used for circulating heat exchange medium, the plurality of second heat exchange channels 150 are connected in sequence, and the plurality of second heat exchange channels 150 are all used for circulating the fluid to be heat exchanged, and the heat exchange medium is used to exchange heat with the fluid to be heat exchanged through the first plate 110 and the second plate 120 to realize the heat exchange function of the heat exchanger 100.

[0033] Furthermore, the first plate 110 and the second plate 120 are arranged in an overlapping manner and together form a first heat exchange channel 140, the first heat exchange fin 130 is arranged in the first heat exchange channel 140, and multiple first plates 110 and multiple second plates 120 together form multiple first heat exchange channels 140, and each first heat exchange fin 130 is arranged in a first heat exchange channel 140.

[0034] The first heat exchange fin 130 includes a fin body 131, and a protrusion 132 and a staggered portion 133 protruding from the fin body 131. That is, the protrusion 132 and the staggered portion 133 both protrude upward relative to the fin body 131. In this embodiment, the fin body 131, the protrusion 132, and the staggered portion 133 are integrally formed to enhance connection strength. The fin body 131 is welded to the first plate 110, that is, the main body of the first heat exchange fin 130 is welded to the first plate 110 to fix the relative position of the fin body 131 and the first plate 110. The raised portion 132 is welded to the second plate 120 to fix the relative position of the raised portion 132 and the second plate 120. Since the raised portion 132 is located in the first heat exchange channel 140, it can also support the second plate 120. The fin body 131 and the raised portion 132 work together to support and fix the adjacent plates (the first plate 110 and the second plate 120), thereby improving the structural strength of the entire heat exchanger 100 and extending the service life of the heat exchanger 100. The staggered teeth 133 are used to guide the heat exchange medium to form turbulent flow in the first heat exchange channel 140, thereby improving the heat exchange effect.

[0035] In this embodiment, the protrusion 132 and the staggered tooth portion 133 are both formed by stamping on the basis of the fin body 131. The protrusion height of the protrusion 132 is the same as the protrusion height of the staggered tooth portion 133, which facilitates production and processing. In addition, the staggered tooth portion 133 abuts against the second plate 120, and the staggered tooth portion 133 can also play a certain supporting role for the second plate 120, further improving the structural strength of the heat exchanger 100, preventing it from deformation, and extending its service life. However, this is not limited to this. In other embodiments, the protrusion height of the protrusion 132 and the protrusion height of the staggered tooth portion 133 can also be different. The protrusion height of the protrusion 132 can be greater than the protrusion height of the staggered tooth portion 133, or it can be less than the protrusion height of the staggered tooth portion 133. There is no specific limitation on the protrusion height of the protrusion 132 and the protrusion height of the staggered tooth portion 133.

[0036] Preferably, the main body of the first plate 110 is planar, and the fin body 131 is fitted and welded to the main body to improve the connection strength between the fin body 131 and the main body, thereby improving the connection strength between the first plate 110 and the first heat exchange fin 130 and preventing the first heat exchange fin 130 from being displaced relative to the first plate 110.

[0037] Preferably, there are multiple protrusions 132 , which are arranged at intervals. The multiple protrusions 132 work together to simultaneously support and fix the second plate 120 , further enhancing the positioning effect and improving the structural strength of the heat exchanger 100 .

[0038] Specifically, the plurality of protrusions 132 include a plurality of first protrusions 134 and a plurality of second protrusions 135. The plurality of first protrusions 134 are located at one end of the fin body 131, and the plurality of second protrusions 135 are located at the other end of the fin body 131. The staggered tooth portion 133 is disposed between the plurality of first protrusions 134 and the plurality of second protrusions 135. The plurality of first protrusions 134 and the plurality of second protrusions 135 work together to simultaneously connect the two ends of the fin body 131 to the second plate 120, fixing the relative positions of the two ends of the fin body 131 and the second plate 120, and achieving good positioning effect. The staggered tooth portion 133 located in the middle of the fin body 131 can reliably guide the heat exchange medium, causing the heat exchange medium to form turbulent flow, and achieving good guiding effect.

[0039] Preferably, the top of the protrusion 132 is planar, and the top of the protrusion 132 is welded to the second plate 120 to increase the welding area, which is beneficial to improving the overall strength of the heat exchanger 100 .

[0040] In this embodiment, the protrusion 132 is shaped like a frustum, with a large end 136 and a small end 137 disposed opposite each other. The large end 136 is connected to the fin body 131, and the small end 137 is welded to the second plate 120. The frustum-shaped protrusion 132 provides good structural stability, is less susceptible to deformation and breakage, and provides high connection strength. However, this is not limiting. In other embodiments, the protrusion 132 may also be hemispherical or diamond-shaped, and the shape of the protrusion 132 is not specifically limited.

[0041] Furthermore, the average diameter of the large end 136 and the small end 137 is 1 mm to 10 mm, that is, the average diameter of the protrusion 132 is 1 mm to 10 mm. A reasonable average diameter of the large end 136 and the small end 137 can minimize the obstruction of the protrusion 132 on the flow of the heat exchange medium while ensuring welding strength, thereby ensuring the flow rate of the heat exchange medium. In this embodiment, the average diameter of the large end 136 and the small end 137 is 5 mm, but this is not limited to this. In other embodiments, the average diameter of the large end 136 and the small end 137 can be 1 mm or 10 mm. The average diameter of the large end 136 and the small end 137 is not specifically limited.

[0042] The staggered tooth portion 133 includes a plurality of first tooth portions 138 and a plurality of second tooth portions 139. The plurality of first tooth portions 138 and the plurality of second tooth portions 139 are alternately arranged in sequence and are interconnected, and the first tooth portions 138 and the second tooth portions 139 are staggered. The first tooth portion 138 is provided with a first guide hole 1381, and the second tooth portion 139 is provided with a second guide hole 1391. The first guide hole 1381 and the second guide hole 1391 are both used for allowing heat exchange medium to flow through. Specifically, in the process of the heat exchange medium passing through the staggered tooth portion 133, part of the heat exchange medium flows in one direction under the action of the first guide hole 1381, and part of the heat exchange medium flows in the other direction under the action of the second guide hole 1391. The plurality of first guide holes 1381 and the plurality of second guide holes 1391 work together to continuously separate and mix the heat exchange medium, thereby realizing the turbulent flow function of the heat exchange medium and improving the heat exchange efficiency.

[0043] Preferably, there are multiple staggered tooth portions 133, and the multiple staggered tooth portions 133 are arranged in parallel and at intervals. In the process of the heat exchange medium passing through the staggered tooth portions 133, a part of the heat exchange medium passes through the first guide holes 1381 and the second guide holes 1391 in the staggered tooth portions 133, and the other part of the heat exchange medium passes through the gap between two adjacent staggered tooth portions 133. The multiple staggered tooth portions 133 work together to further improve the turbulent effect on the heat exchange medium and improve the heat exchange efficiency.

[0044] The heat exchanger 100 provided by the embodiment of the present application, the first plate piece 110 and the second plate piece 120 are overlapped and arranged, and jointly form the first heat exchange flow channel 140, the first heat exchange fin 130 is arranged in the first heat exchange flow channel 140, the first heat exchange fin 130 comprises a fin body 131, a protruding part 132 and a staggered tooth part 133 which are protruded on the fin body 131, the fin body 131 is welded with the first plate piece 110, the protruding part 132 is welded with the second plate piece 120, and the staggered tooth part 133 is used for guiding the heat exchange medium. Compared with the prior art, the heat exchanger 100 provided by the present application can promote the heat exchange medium to form a turbulent flow in the first heat exchange flow channel 140, improve the heat exchange effect, support and fix the adjacent plate pieces, improve the structural strength, and prolong the service life.

[0045] Second embodiment

[0046] The embodiment of the present application provides a heat exchanger 100, compared with the first embodiment, the difference of the embodiment is that the heat exchanger 100 further comprises a plurality of second heat exchange fins (not shown in the figure).

[0047] Specifically, the plurality of first plate pieces 110 and the plurality of second plate pieces 120 jointly form a plurality of second heat exchange flow channels 150, and each second heat exchange fin is arranged in a second heat exchange flow channel 150. On the one hand, the second heat exchange fin can promote the heat exchange fluid to form a turbulent flow in the second heat exchange flow channel 150, and improve the heat exchange effect; on the other hand, the second heat exchange fin can support and fix the adjacent plate pieces (the first plate piece 110 and the second plate piece 120), improve the structural strength of the heat exchanger 100, and prolong the service life.

[0048] In the embodiment, the specific structure of the second heat exchange fin is the same as that of the first heat exchange fin 130, and will not be repeated here.

[0049] The heat exchanger 100 provided by the embodiment of the present application has the same beneficial effects as the first embodiment, and will not be repeated here.

[0050] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat exchanger, characterized in that: It includes a first plate, a second plate and a first heat exchange fin. The first plate and the second plate are overlapped and together form a first heat exchange channel. The first heat exchange fin is arranged in the first heat exchange channel. The first heat exchange fin includes a fin body and a protrusion and a staggered tooth portion protruding from the fin body. The fin body is welded to the first plate, the protrusion is welded to the second plate, and the staggered tooth portion is used to guide the heat exchange medium.

2. The heat exchanger according to claim 1, characterized in that The protruding height of the protruding portion is the same as the protruding height of the staggered tooth portion.

3. The heat exchanger according to claim 1, characterized in that There are multiple protrusions, and the multiple protrusions are arranged at intervals.

4. The heat exchanger according to claim 3, characterized in that The plurality of protrusions include a plurality of first protrusions and a plurality of second protrusions, the plurality of first protrusions are located at one end of the fin body, the plurality of second protrusions are located at the other end of the fin body, and the staggered tooth portion is arranged between the plurality of first protrusions and the plurality of second protrusions.

5. The heat exchanger according to claim 1, characterized in that The top of the raised portion is planar, and the top of the raised portion is welded to the second plate.

6. The heat exchanger according to claim 1, characterized in that The raised portion is in a frustum shape, and is provided with a large end and a small end opposite to each other. The large end is connected to the fin body, and the small end is welded to the second plate.

7. The heat exchanger according to claim 1, characterized in that The staggered tooth portion includes a plurality of first tooth portions and a plurality of second tooth portions, the plurality of first tooth portions and the plurality of second tooth portions are alternately arranged in sequence and connected to each other, the first tooth portions and the second tooth portions are staggered, the first tooth portion is provided with a first guide hole, the second tooth portion is provided with a second guide hole, and both the first guide hole and the second guide hole are used for allowing heat exchange medium to flow through.

8. The heat exchanger according to claim 1, characterized in that There are multiple staggered tooth portions, and the multiple staggered tooth portions are arranged in parallel and at intervals.

9. The heat exchanger according to claim 1, characterized in that There are multiple first plates and multiple second plates, and the multiple first plates and the multiple second plates are sequentially overlapped. The first heat exchange channel is formed between the first plate and an adjacent second plate, and the second heat exchange channel is formed between the first plate and another adjacent second plate. There are a plurality of first heat exchange fins, and each of the first heat exchange fins is disposed in one of the first heat exchange channels; The heat exchanger further includes a plurality of second heat exchange fins, each of which is disposed in one of the second heat exchange channels.

10. The heat exchanger according to any one of claims 1 to 9, characterized in that: The main body of the first plate is planar, and the fin body is fitted and welded to the main body.

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