Heat exchange plate, heat exchange core and heat exchanger

Abstract

The embodiment of the invention provides a heat exchange plate, a heat exchange core and a heat exchanger. The heat exchange plate comprises a heat exchange plate body, and the heat exchange plate body is provided with a plurality of flow guide channels in the first direction; the channel wall of the flow guide channel comprises a plurality of bending units which are sequentially connected end to end; the bending unit is at least made of a partially deformable material, so that the bending angle of the flow guide channel can be automatically adjusted according to the temperature of fluid. According to the heat exchange plate, on the premise that the structural strength of the heat exchange plate is not affected, the bending angle of the flow channel can be automatically adjusted according to the temperature of fluid, the heat exchange plate can keep efficient heat exchange performance under the conditions of different temperatures and flow speeds, meanwhile, the pressure drop of a system is reduced, and the heat exchange plate adapts to variable working condition requirements; the heat exchange plate is compact in structure, easy to maintain and suitable for various industrial application scenes.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the technical field of heat exchangers, and specifically relate to a heat exchange plate, a heat exchange core, and a heat exchanger. Background Art

[0002] Traditional heat exchangers usually adopt a fixed flow channel structure, which performs well under specific working conditions. However, when the fluid temperature or flow rate changes greatly, the fixed bending angle may lead to increased pressure drop and reduced efficiency.

[0003] In view of the above problems, it is necessary to propose a heat exchange plate, a heat exchange core and a heat exchanger that are reasonably designed and can effectively solve the above problems. Summary of the invention

[0004] The embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art and provide a heat exchange plate, a heat exchange core and a heat exchanger.

[0005] One aspect of an embodiment of the present disclosure provides a heat exchange plate, comprising a heat exchange plate body, wherein the heat exchange plate body is provided with a plurality of guide channels along a first direction;

[0006] The channel wall of the guide channel includes a plurality of bending units connected end to end in sequence;

[0007] The bending unit is at least partially made of deformable material, so that the guide channel can automatically adjust the bending angle of the guide channel according to the temperature of the fluid.

[0008] Optionally, the bending unit includes a fixing portion and a first bending portion and a second bending portion respectively connected to two ends of the fixing portion; wherein,

[0009] The fixing portion is made of non-deformable material;

[0010] The first bending portion and the second bending portion are both made of deformable material.

[0011] Optionally, the first bending portion and the second bending portion are made of memory alloy material.

[0012] Optionally, the fixing portion is fixedly connected to the heat exchange plate body, and the first bending portion and the second bending portion are in contact with and connected to the heat exchange plate body.

[0013] Optionally, two ends of the fixing portion are detachably connected to the first bending portion and the second bending portion respectively.

[0014] Optionally, a dynamic sealing structure is provided between the fixing portion and the first bending portion and between the fixing portion and the second bending portion.

[0015] Optionally, the inner surface of the bending unit is smoothly arranged.

[0016] Optionally, the heat exchange plate body is made of a heat-conducting metal plate.

[0017] Another aspect of the embodiments of the present disclosure provides a heat exchange core, comprising the plurality of heat exchange plates mentioned above, wherein the plurality of heat exchange plates are stacked in sequence.

[0018] Another aspect of the embodiments of the present disclosure provides a heat exchanger, comprising the heat exchange core described above.

[0019] The heat exchange plate, heat exchange core and heat exchanger of the disclosed embodiment include a heat exchange plate body, and the heat exchange plate body is provided with a plurality of flow guide channels along a first direction; the channel wall of the flow guide channel includes a plurality of bending units connected end to end in sequence; the bending unit is at least partially formed by a deformable material, so that the flow guide channel can automatically adjust the bending angle of the flow guide channel according to the temperature of the fluid. The heat exchange plate of the disclosed embodiment can automatically adjust the flow channel bending angle according to the temperature of the fluid without affecting the structural strength of the heat exchange plate. The heat exchange plate can maintain efficient heat exchange performance under different temperature and flow rate conditions, while reducing the pressure drop of the system and adapting to changing working conditions; the heat exchange plate has a compact structure, is easy to maintain, and is suitable for a variety of industrial application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a heat exchange plate according to an embodiment of the present disclosure;

[0021] Figure 2 It is a schematic diagram of the structure of the bending unit in the embodiment of the present disclosure;

[0022] Figure 3 This is a schematic structural diagram of a dynamic sealing structure in an embodiment of the present disclosure;

[0023] Figure 4 This is a schematic structural diagram of a heat exchange core according to another embodiment of the present disclosure;

[0024] Figure 5 It is a comparative schematic diagram of another embodiment of the present disclosure, which uses a heat exchange plate to reduce flow pressure drop loss under the condition of the same heat exchange amount. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1As shown, one aspect of the embodiment of the present disclosure provides a heat exchange plate 100, comprising a heat exchange plate body 110, wherein the heat exchange plate body 110 is provided with a plurality of guide channels 120 along a first direction. The guide channels 120 are used to circulate cold fluid or hot fluid.

[0027] The channel wall 121 of the guide channel 120 includes a plurality of bending units 130 connected end to end in sequence.

[0028] The bending unit 130 is at least partially made of a deformable material, so that the guiding channel 120 can automatically adjust the bending angle of the guiding channel 120 according to the temperature of the fluid.

[0029] Specifically, the deformable material automatically adjusts the bending angle of the flow guide channel 120 through phase change or shape memory effect when the temperature changes. When the temperature of the fluid is low, the deformable material contracts, the bending angle of the flow guide channel 120 decreases, and the flow of the fluid becomes smoother, thereby reducing the pressure drop; when the temperature of the fluid is high, the deformable material expands, the bending angle of the flow guide channel 120 increases, the flow path of the fluid becomes more complex, and the contact area with the wall surface of the channel wall 121 is increased, thereby improving the heat exchange efficiency.

[0030] The heat exchange plate of the disclosed embodiment can automatically adjust the flow channel bending angle according to the temperature of the fluid without affecting the structural strength of the heat exchange plate. The heat exchange plate can maintain efficient heat exchange performance under different temperature and flow rate conditions, while reducing the pressure drop of the system and adapting to changing working conditions. The heat exchange plate has a compact structure and is easy to maintain, and is suitable for a variety of industrial application scenarios.

[0031] For example, Figure 2 As shown, the bending unit 130 includes a fixing portion 131 and a first bending portion 132 and a second bending portion 133 respectively connected to two ends of the fixing portion 131 .

[0032] The fixing portion 131 is made of a non-deformable material, and when the temperature of the fluid changes, the fixing portion 131 does not deform.

[0033] The first bending portion 132 and the second bending portion 133 are both made of a deformable material. When the temperature of the fluid changes, the first bending portion 132 and the second bending portion 133 can change their angles according to the change in the temperature of the fluid.

[0034] like Figure 2 As shown, in this embodiment, the bending unit 130 is S-shaped, and the channel wall 121 of the guide channel 120 is composed of a plurality of S-shaped bending units 130 connected end to end.

[0035] Preferably, in this embodiment, the first bending portion 132 and the second bending portion 133 may be made of a memory alloy material.

[0036] Specifically, when the fluid temperature is low, the memory alloy material contracts and the bending angles of the first bending portion 132 and the second bending portion 133 decrease; when the fluid temperature is high, the memory alloy material expands and the bending angles of the first bending portion 132 and the second bending portion 133 increase, so as to reduce the pressure drop and improve the heat exchange efficiency.

[0037] It should be noted that, in this embodiment, the deformable material is not limited to the memory alloy material, and other deformable materials may also be used, as long as the selected material can be deformed according to temperature, and can be selected according to actual needs.

[0038] Exemplarily, the fixing portion 131 is fixedly connected to the heat exchange plate body 110, and the first bending portion 132 and the second bending portion 133 are in contact with the heat exchange plate body 110. In this way, when the temperature of the fluid changes, the fixing portion 131 remains stationary, and the first bending portion 132 and the second bending portion 133 change their angles accordingly while contacting the heat exchange plate body 110.

[0039] In this embodiment, by setting the connection relationship between the fixing portion and the first bending portion and the second bending portion and the heat exchange plate body, the normal flow of the fluid in the guide channel can be ensured, and the bending angle of the guide channel can be automatically adjusted according to the temperature of the fluid.

[0040] For example, Figure 2 and Figure 3 As shown, in this embodiment, the two ends of the fixing portion 131 are respectively detachably connected to the first bending portion 132 and the second bending portion 133. Specifically, the two ends of the fixing portion 131 can be detachably connected to the first bending portion 132 and the second bending portion 133 by fasteners, buckles or other connection methods with self-locking functions.

[0041] In this embodiment, the two ends of the fixed part are detachably connected to the first bending part and the second bending part respectively, which can maintain the stability and sealing of the system under conditions of high-pressure fluid or temperature changes, resist the stress caused by fluid pressure or temperature changes, simplify the assembly and maintenance process, and at the same time improve the flexibility of the system, so that the heat exchange plate can be configured and adjusted according to actual needs.

[0042] For example, Figure 2 and Figure 3As shown, a dynamic sealing structure 140 is provided between the fixing portion 131 and the first bending portion 132 and the second bending portion 133. The dynamic sealing structure 140 includes a flexible sealing material, such as fluororubber or silicone, which is tightly matched with a memory alloy or other deformable material. When the bending angle changes, the flexible sealing material can adapt to the deformation, thereby maintaining sealing and preventing fluid leakage caused by angle adjustment.

[0043] Exemplarily, the inner surface of the bending unit 130 is smoothly configured to guide the smooth flow of the fluid, reduce turbulence and resistance, further improve heat exchange efficiency and reduce energy consumption.

[0044] For example, in this embodiment, the heat exchange plate body 110 is a heat-conducting metal plate. The flow channel 120 can be used to circulate hot fluid or cold fluid. In this embodiment, the hot and cold flow channels are spaced apart on the heat-conducting metal plate. The heat-conducting metal plate is made of a high thermal conductivity material, such as copper or aluminum alloy. The heat exchange plate body 110 has a preset thickness, which can ensure sufficient heat conduction capacity while maintaining structural stability under high temperature and high pressure conditions.

[0045] like Figure 5 As shown, under the same fluid flow conditions, pressure distribution experiments were conducted on two flow channels, the fixed flow channel of the prior art and the flow guide channel 120 of the heat exchange plate body 110 implemented in the present disclosure. The upper part is a schematic diagram of pressure distribution using the fixed flow channel in the prior art; the bottom part is a schematic diagram of pressure distribution using the flow guide channel 120 of the embodiment of the present disclosure.

[0046] Depend on Figure 5 As shown in the pressure distribution diagram, the flow guide channel 120 of the embodiment of the present disclosure adopts an adjustable bending angle design, which aims to dynamically optimize the flow channel shape according to different temperatures, flow rates or working conditions, so as to maintain efficient operation under various working conditions. The pressure distribution comparison results show that compared with the fixed traditional heat exchange plate body, the improved heat exchange plate body 110 significantly reduces the local pressure drop, the pressure distribution is more uniform, the energy loss of the fluid at the bend is reduced, and the flow efficiency is improved.

[0047] In this embodiment, the adaptive characteristics of the deformable material are used to automatically adjust the flow channel 120 to a new flow channel at high temperature and high flow rate to reduce the pressure drop, and return to a more compact traditional flow channel at low temperature or low flow rate to enhance the heat exchange effect. In this way, unlike the single performance of the fixed flow channel, the design of the flow channel 120 with an adjustable bending angle in the embodiment of the present disclosure can achieve a balance between pressure drop and heat exchange efficiency under various working conditions, significantly improving the adaptability and comprehensive energy efficiency of the system.

[0048] like Figure 4As shown, another aspect of the embodiment of the present disclosure provides a heat exchange core 200, comprising the plurality of heat exchange plates 100 described above, which are stacked in sequence. The specific structure of the heat exchange plates 100 has been described in detail above and will not be repeated here.

[0049] It should be noted that the present embodiment does not specifically limit the number of heat exchange plates stacked in the heat exchange core, and the number can be selected according to actual needs.

[0050] In the heat exchange chip of the disclosed embodiment, each guide channel can automatically adjust the bending angle of the guide channel according to the temperature of the fluid, ensuring that the high-temperature heat exchange medium and the low-temperature heat exchange medium can maximize the heat exchange when flowing between adjacent plates, fully utilizing the heat transfer capacity between the plates, and achieving an efficient and energy-saving heat exchange effect.

[0051] Another aspect of the embodiment of the present disclosure provides a heat exchanger, comprising the heat exchange core described above and a shell covering the outside of the heat exchange core. The specific structure of the heat exchange core has been described in detail above and will not be repeated here.

[0052] It should be noted that the shell of the heat exchanger is made of corrosion-resistant materials, such as stainless steel, alloy aluminum or composite materials with anti-corrosion coating. These materials have excellent corrosion resistance, high temperature resistance and high pressure resistance, and can maintain structural integrity and performance stability under high temperature and high pressure conditions, ensuring the long life and reliability of the heat exchanger.

[0053] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the embodiments of the present disclosure, but the embodiments of the present disclosure are not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the embodiments of the present disclosure, and these modifications and improvements are also considered to be within the protection scope of the embodiments of the present disclosure.

Claims

1. A heat exchange plate, characterized in that: It comprises a heat exchange plate body, wherein the heat exchange plate body is provided with a plurality of flow guide channels along a first direction; The channel wall of the guide channel includes a plurality of bending units connected end to end in sequence; The bending unit is at least partially made of deformable material, so that the guide channel can automatically adjust the bending angle of the guide channel according to the temperature of the fluid.

2. The heat exchange plate according to claim 1, characterized in that: The bending unit includes a fixing portion and a first bending portion and a second bending portion respectively connected to two ends of the fixing portion; wherein, The fixing portion is made of non-deformable material; The first bending portion and the second bending portion are both made of deformable material.

3. The heat exchange plate according to claim 2, characterized in that: The first bending portion and the second bending portion are made of memory alloy material.

4. The heat exchange plate according to claim 2, characterized in that: The fixing portion is fixedly connected to the heat exchange plate body, and the first bending portion and the second bending portion are in contact with and connected to the heat exchange plate body.

5. The heat exchange plate according to any one of claims 2 to 4, characterized in that: Two ends of the fixing portion are detachably connected to the first bending portion and the second bending portion respectively.

6. The heat exchange plate according to any one of claims 2 to 4, characterized in that: A dynamic sealing structure is provided between the fixing portion and the first bending portion and the second bending portion.

7. The heat exchange plate according to any one of claims 1 to 4, characterized in that: The inner surface of the bending unit is smoothly arranged.

8. The heat exchange plate according to any one of claims 1 to 4, characterized in that: The heat exchange plate body is made of a heat-conducting metal plate.

9. A heat exchange core, characterized in that: It comprises a plurality of heat exchange plates as described in any one of claims 1 to 8, wherein the plurality of heat exchange plates are stacked in sequence.

10. A heat exchanger, characterized in that: Comprising the heat exchange core as claimed in claim 9.

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