A modular heat exchanger plate structure and its processing technology

Abstract

This application discloses a modular heat exchange plate structure and its processing technology, belonging to the technical field of heat exchange components. It includes multiple heat exchange plates and a connecting structure for connecting adjacent heat exchange plates. Each heat exchange plate has a flow channel, and adjacent heat exchange plates have an included angle. The connecting structure is used to fix adjacent heat exchange plates and connect the flow channels between them. This application utilizes modular heat exchange plates to assemble a three-dimensional heat exchange component based on different heat dissipation spaces, thereby improving the heat exchange effect.

Description

Technical Field

[0001] This application belongs to the technical field of heat exchange components and relates to a modular heat exchange plate structure and its processing technology. Background Technology

[0002] Existing heat exchange plate structures are either cooling plates or heating plates. For example, a cooling plate has pipes inside, through which a low-temperature medium is passed, giving the cooling plate the ability to absorb heat and efficiently cool the heating element. Similarly, a heating plate has pipes inside, through which a high-temperature medium is passed, giving the heating plate the ability to heat the electronic component or other object to be heated efficiently.

[0003] The typical structure of existing heat exchange components is a flat plate with internal pipes through which the heat exchange medium flows. The heat exchange element (such as a heating element or an element to be heated) comes into contact with the heat exchange plate to achieve the purpose of heat exchange.

[0004] However, because heat exchange plates are flat, their heat exchange range is limited. Therefore, compromises in the design of heat exchange elements are often necessary to maximize contact with the plate and ensure optimal heat exchange performance. In other words, when heat exchange elements have limited contact with the plate, their heat exchange efficiency is significantly reduced.

[0005] However, if the shape of the heat exchange plate is customized according to the heat exchange element to increase the heat exchange contact range, there will be many drawbacks such as higher cost, greater difficulty in forming the heat exchange structure, greater difficulty in laying internal pipes, and difficulty in adjusting the shape for applicability later. Summary of the Invention

[0006] To address the problem of poor heat exchange performance in existing heat exchangers, a modular heat exchange plate structure and its processing technology are provided.

[0007] This application provides a modular heat exchange plate structure, which is implemented using the following technical solution: A modular heat exchange plate structure includes multiple heat exchange plates and a connecting structure for connecting adjacent heat exchange plates. The heat exchange plates have flow channels, and there is an included angle between adjacent heat exchange plates. The connecting structure is used to fix adjacent heat exchange plates and connect the flow channels between adjacent heat exchange plates.

[0008] Optionally, dovetail grooves are formed on the sides of two adjacent heat exchange plates. The narrow opening of the dovetail groove is located on the side of the heat exchange plate. The two inclined groove walls are named the first inclined groove wall and the second inclined groove wall, respectively. The outlet of the flow channel of one of the two adjacent heat exchange plates is located on the first inclined groove wall of the dovetail groove, and the inlet of the flow channel of the other heat exchange plate is located on the second inclined groove wall of the dovetail groove. The connecting structure includes an elastic bellows and two conical blades. The elastic bellows is made of metal, and the two conical blades are coaxial with their axes parallel to the sides of the heat exchange plates. The tips of the cones are positioned opposite each other, and the elastic bellows and the two cones together form a transfer cavity. The elasticity of the elastic bellows forces the two cones to move away from each other along their own axis. The cones and the elastic bellows rotate coaxially. The inner cone surface of one cone is in contact with the two first inclined groove walls of the two adjacent dovetail grooves, and the inner cone surface of the other cone is in contact with the two second inclined groove walls of the two adjacent dovetail grooves. The two cones are respectively provided with water inlet holes and water outlet holes, which are connected to the flow channel outlet and flow channel inlet of the two adjacent heat exchange plates, respectively.

[0009] Through the above technical solution, based on the parameters of the heat exchange space, the number of heat exchange plates and the angle between adjacent heat exchange plates are set, and the positions and angles of adjacent heat exchange plates are pre-positioned to ensure that the narrow openings of the two dovetail grooves are opposite each other. The angle of the two conical plates of the connecting structure is rotated so that the water inlet and outlet of the two conical plates can be adapted to the flow channel outlet and flow channel inlet of the two adjacent heat exchange plates, respectively. Then, the two conical plates are pressed to compress the elastic bellows, reducing the axial length of the connecting structure. The connecting structure is then placed into the two dovetail grooves, and the conical plates are released. The inner conical surfaces of the conical plates are respectively attached to the two inclined groove walls of the two dovetail grooves. The axial pressure of the elastic bellows will force the adjacent heat exchange plates to move closer through the cooperation of the conical plates and the inclined groove walls of the dovetail grooves, thereby limiting the heat exchange plates from detaching. This makes the assembly and fixation between the two adjacent heat exchange plates more convenient and faster.

[0010] In this way, by setting multiple combinable and fixed heat exchange plates, the angle between adjacent heat exchange plates can be adjusted, making the heat exchange components constructed by multiple heat exchange plates have diverse and flexible shapes. That is, according to the size and shape of the heat exchange element and the heat exchange space, multiple modular heat exchange plates are used to construct a three-dimensional heat exchange component that fits the heat exchange element, so as to surround the heat exchange element as much as possible and greatly improve the heat exchange effect.

[0011] Secondly, the heat exchange plate is highly flexible in assembly. It can be adjusted in real time according to the installation site, or it can be readjusted to fit the spatial three-dimensional shape of the new heat exchange element after the replacement of the heat exchange element.

[0012] Secondly, the circumferential angle between the two conical plates is interchangeable, meaning that the water inlet and outlet holes of the conical plates can be adaptively adjusted to adapt to changes in the angle of the heat exchange plates. This allows the flow channels between adjacent heat exchange plates to be connected through a connecting structure. In other words, the spatial three-dimensional heat exchange component constructed by multiple heat exchange plates only requires one medium inlet pipe and one medium outlet pipe, making the circulation of the heat exchange medium simpler and more uniform.

[0013] Furthermore, the heat exchange plate is easy to form, has low processing and raw material costs, and the flow channel layout is also simple.

[0014] It should be noted that although the heat exchange effect of the heat exchange component in this application is lower than that of the existing customized fixed-shape heat exchange components, the heat exchange effect is greatly improved compared with the existing flat plate heat exchange components. Moreover, it overcomes many defects brought about by the existing customized fixed-shape heat exchange components, and has better applicability and practicality.

[0015] Optionally, the sides of two adjacent heat exchange plates have rounded corners, and the sides of two adjacent heat exchange plates abut against each other; the outer conical surfaces of the two conical plates of the connecting structure are coaxially fixed with annular slot bodies, and the two ends of the elastic bellows are respectively inserted into the slot bodies of the two conical plates.

[0016] Optionally, the outer conical surfaces of the two conical plates of the connecting structure are respectively coaxially fixed with a first guide cylinder and a second guide cylinder, and the first guide cylinder and the second guide cylinder slide through and cooperate with each other.

[0017] Optionally, the heat exchange plate is a long strip plate, with the long sides of two adjacent heat exchange plates abutting each other, and the heat exchange plates are enclosed to form a tubular structure, with the axial direction of the conical plate parallel to the axial direction of the tubular structure.

[0018] Optionally, the heat exchange plate has two dovetail grooves arranged at intervals along its length on its long side. Adjacent heat exchange plates are connected by two connecting structures. The heat exchange plate has two non-intersecting flow channels, which are arranged at intervals along the axial direction of the tubular structure. Cooling medium flows into one flow channel, and heating medium flows into the other flow channel.

[0019] Optionally, it also includes two inner support rings. The heat exchange plate is a long strip plate with a clearance between the long sides of adjacent heat exchange plates. Each heat exchange plate is enclosed to form a tubular structure. Two dovetail grooves are provided on the long side of each heat exchange plate, spaced apart along its length. Adjacent heat exchange plates are connected by two connecting structures. The inner support ring is a regular polygon and includes multiple straight sections corresponding to each heat exchange plate. The straight sections abut against the inner surface of the heat exchange plate. The inner support ring and the connecting structure are located at the same axial position of the tubular structure. The axial direction of the conical plate is parallel to the axial direction of the tubular structure. The elastic force of the elastic bellows is converted into a force that forces the tubular structure to hug the inner support ring.

[0020] Optionally, the conical plate that mates with the first inclined wall of the dovetail groove is named a sliding compensation conical plate, and the conical plate that mates with the second inclined wall of the dovetail groove is named a positioning anchoring conical plate. The cone angle of the inner conical surface of the sliding compensation conical plate is 60° or 90°, and the cone angle of the inner conical surface of the positioning anchoring conical plate is 30°. The two sliding compensation conical plates on the long side of the heat exchange plate face the same direction. A guide pipe is fixed to the water inlet of the sliding compensation conical plate. The guide pipe is parallel to the axis of the conical plate, and one end of the guide pipe is directly opposite the outer conical surface of the positioning anchoring conical plate. There is a pressure relief gap between one end of the guide pipe and the outer conical surface of the positioning anchoring conical plate.

[0021] Optionally, the heat exchange plate has a first semi-flow groove on its surface, a filler strip on the heat exchange plate, and a second semi-flow groove on the filler strip. The filler strip is sealed and fixed to the opening of the first semi-flow groove, and the first and second semi-flow grooves together form the flow channel.

[0022] This application also provides a method for processing a modular heat exchanger plate structure, which is implemented using the following technical solutions.

[0023] A processing technology for a modular heat exchanger plate structure includes the following steps: heat exchanger plate processing: cutting dovetail grooves on the side of the heat exchanger plate, milling the first semi-flow groove on one surface of the heat exchanger plate, and sealing the opening of the first semi-flow groove with a filler strip of the same material as the heat exchanger plate; heat exchanger plate assembly: according to the parameters of the heat exchange space, setting the number of heat exchanger plates and the angle between two adjacent heat exchanger plates, pre-positioning the position and angle of two adjacent heat exchanger plates to ensure that the narrow openings of the two dovetail grooves are opposite each other, rotating the angle of the two conical plates of the connecting structure so that the water inlet and water outlet of the two conical plates can be adapted to the flow channel outlet and flow channel inlet of the two adjacent heat exchanger plates respectively, then pressing the two conical plates to compress the elastic bellows, reducing the axial length of the connecting structure, placing the connecting structure into the two dovetail grooves, releasing the conical plates, and having the inner conical surfaces of the conical plates fit against the two inclined groove walls of the two dovetail grooves respectively to complete the assembly of the heat exchanger plate.

[0024] The beneficial effects of this application are: 1. By setting multiple combinable and fixed heat exchange plates, the angle between adjacent heat exchange plates can be adjusted, making the heat exchange components constructed by multiple heat exchange plates have diverse and flexible shapes. That is, according to the size and shape of the heat exchange element and the heat exchange space, multiple modular heat exchange plates are used to construct a three-dimensional heat exchange component that fits the heat exchange element, so as to surround the heat exchange element as much as possible and greatly improve the heat exchange effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0026] Figure 2This is an exploded view of the filler strip in Example 1.

[0027] Figure 3 This is an exploded view of the connection structure of Example 1.

[0028] Figure 4 This is a partial cross-sectional view obtained by rotating the cross-section along the included angle of adjacent heat exchange plates in Example 1.

[0029] Figure 5 This is a partial cross-sectional view of the heat exchange plate in Example 1.

[0030] Figure 6 This is a schematic diagram of the overall structure of Example 2.

[0031] Figure 7 This is a schematic diagram of the overall structure of Example 3.

[0032] Figure 8 This is a schematic diagram of the overall structure unfolded in Example 3.

[0033] Figure 9 This is a schematic diagram of the overall structure of Example 4.

[0034] Figure 10 This is a schematic diagram of the inner support ring in Example 4.

[0035] Figure 11 This is a partial cross-sectional view obtained by rotating the cross-section along the included angle of adjacent heat exchange plates in Example 5.

[0036] Explanation of reference numerals in the attached drawings: 1. Heat exchange plate; 2. Connecting structure; 3. Inner support ring; 10. Clearance gap; 11. Flow channel; 111. First half-flow channel; 112. Second half-flow channel; 12. Filler strip; 13. Medium inlet pipe; 14. Medium outlet pipe; 15. Dovetail groove; 151. First inclined groove wall; 152. Second inclined groove wall; 200. Positioning and anchoring conical plate; 201. Sliding compensation conical plate; 21. Conical plate; 211. Water inlet hole; 212. Water outlet hole; 22. Elastic bellows; 23. Slot body; 24. First sealing ring; 25. Second sealing ring; 26. Guide pipe; 31. Straight section; 32. Inner curved section; 33. Connecting rod. Detailed Implementation

[0037] The embodiments of this application are described in detail below, and examples of the embodiments are provided in the appendix. Figures 1-11 As shown in the image.

[0038] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] Example 1 Example 1 discloses a modular heat exchanger plate structure, such as Figure 1 and Figure 2 As shown, the modular heat exchange plate structure includes multiple heat exchange plates 1 and a connecting structure 2 for connecting two adjacent heat exchange plates 1. In this embodiment, the heat exchange plate 1 is long and narrow, and there is an angle between two adjacent heat exchange plates 1. The parameters of the angle are set according to the size and shape of the heat exchange element. For example, if the size of the heat exchange element is small and it is tubular, the angle will be set to be small so that the heat exchange plate 1 is as close as possible to the heat exchange element.

[0040] In other embodiments, the connecting structure 2 can be a rigid tube, and the two ends of the rigid tube can be fixed to two adjacent heat exchange plates 1 respectively. The port of the rigid tube is connected to the inlet and outlet of the flow channel 11 of the two adjacent heat exchange plates 1 to connect the flow channel 11. The fixing method can be welding or a detachable connection of quick-release head.

[0041] To increase the angle adjustability of two adjacent heat exchange plates 1, in other embodiments the connecting structure 2 can be a flexible tube. The two ends of the flexible tube can be fixed to two adjacent heat exchange plates 1 respectively. The port of the flexible tube is connected to the inlet and outlet of the flow channel 11 of the two adjacent heat exchange plates 1 to connect the flow channel 11. The fixing method can be welding or a detachable connection of quick-release head. Since the flexible tube has a certain deformation capability, it allows the angle adjustment of two adjacent heat exchange plates 1 to a certain extent.

[0042] In this embodiment, the long sides of two adjacent heat exchange plates 1 have rounded corners, and dovetail grooves 15 are formed at the long sides of two adjacent heat exchange plates 1. In this embodiment, there is only one dovetail groove 15. The narrow opening of the dovetail groove 15 is located on the side of the heat exchange plate 1. The two inclined groove walls of the dovetail groove 15 are named the first inclined groove wall 151 and the second inclined groove wall 152, respectively. In this embodiment, the included angle between the two first inclined groove walls 151 of two adjacent dovetail grooves 15 is between 45° and 120°. The included angle between the two second inclined groove walls 152 of two adjacent dovetail grooves 15 is between 45° and 120°.

[0043] like Figure 3 , Figure 4 As shown, the connecting structure 2 includes an elastic bellows 22 and two conical plates 21. The elastic bellows 22 is made of metal. The two conical plates 21 are coaxial and their axes are parallel to the long side of the heat exchange plate 1. The tips of the two conical plates 21 are arranged opposite each other, and the open ends of the two conical plates 21 are arranged opposite each other. In other embodiments, the outer conical surfaces of the two conical plates 21 of the connecting structure 2 are respectively coaxially fixed with a first guide cylinder and a second guide cylinder. The first guide cylinder and the second guide cylinder slide through and cooperate to improve the coaxiality and smoothness of sliding of the two conical plates 21.

[0044] The flexible bellows 22 and the two conical plates 21 together form a transfer cavity. Specifically, the flexible bellows 22 and the conical plates 21 are coaxially arranged. The outer conical surfaces of the two conical plates 21 of the connecting structure 2 are coaxially fixed with annular slot bodies 23. The slot body 23 is provided with an annular first sealing ring 24. The two ends of the flexible bellows 22 are respectively inserted into the slot bodies 23 of the two conical plates 21. The elastic force of the flexible bellows 22 will force the two conical plates 21 to move away from each other along their own axial direction, and the end of the flexible bellows 22 will squeeze the first sealing ring 24 to achieve the sealing of the transfer cavity.

[0045] Due to the cooperation between the slot body 23 and the elastic bellows 22, the conical plate 21 can rotate relative to the elastic bellows 22.

[0046] One of the conical plates 21 has its inner conical surface fitted to the two first inclined groove walls 151 of the two adjacent dovetail grooves 15, and the other conical plate 21 has its inner conical surface fitted to the two second inclined groove walls 152 of the two adjacent dovetail grooves 15. It should be noted that the fitting is a curved surface fitting, that is, the surface shape of the inclined groove wall of the dovetail groove 15 must be adapted to the curved surface of the inner conical surface of the conical plate 21.

[0047] In this way, the axial elastic force of the flexible bellows 22 forces the two conical plates 21 to move away from each other along their own axial direction. Through the cooperation between the inner conical surface of the conical plate 21 and the inclined groove wall of the dovetail groove 15, this axial elastic force is converted into a lateral locking force. This lateral locking force forces the two heat exchange plates 1 to move closer together, and the long sides of the two adjacent heat exchange plates 1 abut against each other, thereby locking the position and angle between the two adjacent heat exchange plates 1. This allows multiple heat exchange plates 1 to be assembled and fixed in sequence, and to limit any included angle, in order to construct a spatial three-dimensional heat exchange component that can be adapted to heat exchange elements. Furthermore, the wedge-shaped fit will greatly increase the difficulty of the heat exchange plates 1 laterally disengaging from the connecting structure 2, thereby improving the installation stability.

[0048] To improve stability, in other embodiments, a rubber pad may be covered on the inclined groove wall surface of the dovetail groove 15 to increase friction.

[0049] like Figure 2 , Figure 4 , Figure 5As shown, the heat exchange plate 1 has flow channels 11 through which a heat exchange medium flows. When the heat exchange medium is a cooling medium, the heat exchange plate 1 acts as a cooling plate to cool the heat exchange element; when the heat exchange medium is a heating medium, the heat exchange plate 1 acts as a heating plate to heat the heat exchange element. The flow channels 11 are meandering and can be evenly distributed, or they can be more densely packed in some areas and more sparsely packed in others. The cross-sectional shape of the flow channel 11 can be trapezoidal, square or circular. In this embodiment, the flow channel 11 is circular. In this embodiment, there is one flow channel 11 of the heat exchange plate 1. Specifically, a first semi-flow groove 111 is provided on the surface of the heat exchange plate 1. The heat exchange plate 1 is provided with a filler strip 12. The filler strip 12 is made of the same material as the heat exchange plate 1. The filler strip 12 is provided with a second semi-flow groove 112. The filler strip 12 is sealed and fixed to the opening of the first semi-flow groove 111. The first semi-flow groove 111 and the second semi-flow groove 112 together form the flow channel 11.

[0050] The filler strip 12 can be welded and fixed to the heat exchange plate 1. Alternatively, the filler strip 12 can be fixed to the heat exchange plate 1 by adding ear plates and bolts. Furthermore, the contact position between the filler strip 12 and the heat exchange plate 1 can be filled with waterproof strips or waterproof glue to ensure sealing.

[0051] The outlet of the flow channel 11 of one of the two adjacent heat exchange plates 1 is located at the first inclined groove wall 151 of the dovetail groove 15, and the inlet of the flow channel 11 of the other heat exchange plate 1 is located at the second inclined groove wall 152 of the dovetail groove 15. The two conical plates 21 are respectively provided with water inlet holes 211 and water outlet holes 212. The diameter of the water inlet holes 211 and water outlet holes 212 is smaller than the inner diameter of the flow channel 11. The water inlet holes 211 and water outlet holes 212 are respectively connected to the outlet and inlet of the flow channel 11 of the two adjacent heat exchange plates 1, so that the flow channels 11 between the two adjacent heat exchange plates 1 are connected, so that the flow channels 11 of multiple heat exchange plates 1 together form a flow path. It is only necessary to connect the medium inlet pipe 13 and the medium outlet pipe 14 at the beginning and end of the flow path, respectively. The medium inlet pipe 13 and the medium outlet pipe 14 can be inserted through the packing strip 12.

[0052] To improve sealing, a second sealing ring 25 is provided at the outlet of the flow channel 11 of the first inclined groove wall 151 and the inlet of the flow channel 11 of the second inclined groove wall 152. The second sealing ring 25 is simultaneously squeezed by the inner conical surface of the conical plate 21.

[0053] It should be noted that the rotational arrangement of the conical plate 21 and the elastic bellows 22 means that the angle between the two conical plates 21 is adjustable, that is, the relative angle between the water inlet hole 211 and the water outlet hole 212 is adjustable to accommodate different included angles of the two adjacent heat exchange plates 1.

[0054] The implementation principle of Example 1 is as follows: by setting multiple combinable and fixed heat exchange plates 1, the angle between adjacent heat exchange plates 1 is adjustable, so that the heat exchange components constructed by multiple heat exchange plates 1 have diverse and flexible shapes. That is, according to the size and shape of the heat exchange element and the heat exchange space, multiple modular heat exchange plates 1 are used to construct a spatial three-dimensional heat exchange component that is adapted to the heat exchange element, so as to surround the heat exchange element as much as possible and greatly improve the heat exchange effect.

[0055] Secondly, the heat exchange plate 1 has extremely high assembly flexibility. It can be adjusted in real time according to the installation site, or it can be readjusted to adapt to the spatial three-dimensional shape of the new heat exchange element after the replacement of the heat exchange element.

[0056] Secondly, the circumferential angle between the two conical plates 21 is interchangeable, that is, the water inlet hole 211 and water outlet hole 212 of the conical plate 21 can be adaptively adjusted to adapt to the angle change of the heat exchange plate 1, so that the flow channel 11 between adjacent heat exchange plates 1 is connected through the connecting structure 2. That is, the spatial three-dimensional heat exchange component constructed by multiple heat exchange plates 1 only needs one medium inlet pipe 13 and one medium outlet pipe 14, making the circulation of the heat exchange medium simpler and more uniform.

[0057] Furthermore, the heat exchange plate 1 is simple to form, and has low processing and raw material costs.

[0058] It should be noted that although the heat exchange effect of the heat exchange component in this application is lower than that of the existing customized fixed-shape heat exchange components, the heat exchange effect is greatly improved compared with the existing flat plate heat exchange components. Moreover, it overcomes many defects brought about by the existing customized fixed-shape heat exchange components, and has better applicability and practicality.

[0059] Most importantly, the detachable connection method of the connecting structure 2 further improves the overall stability. The specific analysis is as follows: The heat exchange plate 1 is greatly affected by temperature changes and is prone to thermal expansion and contraction. The dimensions of the dovetail groove 15 and the side contact of the heat exchange plate 1 will undergo slight changes. However, the elasticity of the flexible bellows 22 remains constant, providing pre-tightening force. That is, regardless of whether the heat exchange plate 1 expands or contracts, the elasticity of the flexible bellows 22 can push the conical plate 21 to always remain tightly against the inclined wall of the dovetail groove, ensuring the connection stability of the heat exchange plate 1 and also ensuring the dynamic sealing of the flow channel 11. Secondly, under fluid impact or slight external vibration, the flexible bellows 22 can absorb the minor vibrations during the operation of the overall structure, preventing gaps or loosening of the connecting structure 2 due to vibration.

[0060] Example 1 also discloses a processing method for the above-mentioned modular heat exchanger plate structure, including the following steps: Processing of heat exchange plate 1: Cut dovetail groove 15 on the side of heat exchange plate 1 and trim the inclined groove wall of dovetail groove 15. Then, mill a first semi-flow groove 111 on one surface of heat exchange plate 1 and seal the groove opening of the first semi-flow groove 111 with filler strip 12.

[0061] Heat exchange plate 1 assembly: Based on the parameters of the heat exchange space, the number of heat exchange plates 1 and the angle between two adjacent heat exchange plates 1 are set. The positions and angles of two adjacent heat exchange plates 1 are pre-positioned to ensure that the narrow openings of the two dovetail grooves 15 are opposite each other. The angle of the two conical plates 21 of the connecting structure 2 is rotated so that the water inlet holes 211 and water outlet holes 212 of the two conical plates 21 can be adapted to the outlet and inlet of the flow channel 11 of the two adjacent heat exchange plates 1, respectively. Then, the two conical plates 21 are pressed to compress the elastic bellows 22, and the axial length of the connecting structure 2 is reduced. The connecting structure 2 is placed into the two dovetail grooves 15. The conical plates 21 are released, and the inner conical surfaces of the conical plates 21 are respectively attached to the two inclined groove walls of the two dovetail grooves 15. The water inlet holes 211 and water outlet holes 212 of the two conical plates 21 are respectively connected to the outlet and inlet of the flow channel 11 of the two adjacent heat exchange plates 1, so as to complete the assembly of heat exchange plate 1.

[0062] Example 2 The difference between Example 2 and Example 1 is that, as Figure 6 As shown, each heat exchange plate 1 is enclosed to form a box-shaped structure with at least one opening, through which the heat exchange element can enter the box-shaped structure.

[0063] Example 3 The difference between Example 3 and Example 1 is that, as Figure 7 and Figure 8 As shown, each heat exchange plate 1 is enclosed to form a tubular structure. The axial direction of the conical plate 21 is parallel to the axial direction of the tubular structure. In this embodiment, there are six heat exchange plates 1. The regular hexagonal tubular structure formed by the six heat exchange plates 1 is suitable for horizontal moving conveying or long strip-shaped heat exchange elements. When the axial length of the regular hexagonal tubular structure is too large, the connecting structure 2 can be set as multiple sets arranged axially at intervals. In this embodiment, there are two sets of connecting structures 2, with one set including six connecting structures 2. At the same time, the flow channels 11 of a single heat exchange plate 1 are also set as two and are not interconnected. The two flow channels 11 are arranged at intervals along the axial direction of the tubular structure. Each flow channel 11 is connected to the flow channel 11 of the adjacent heat exchange plate 1 through the transfer cavity of the connecting structure 2. The flow path of the two flow channels 11 of the heat exchange plate 1 is shown in the figure. Figure 6 .

[0064] Secondly, the two flow channels 11 can be circulated with the same heat exchange medium, such as both flow channels 11 being circulated with a cooling medium or a heating medium. In other embodiments, one flow channel 11 is circulated with a cooling medium and the other flow channel 11 is circulated with a heating medium. The heating medium can be located at the moving front end of the heat exchange element. This is mainly suitable for segmented and time-sharing heat exchange scenarios, such as when heat exchange elements for polymer materials or carbon fiber materials need to be heated first and then gradually cooled or rapidly cooled during processing and transportation. That is, the number of flow channels 11 is not limited. The number, position, density, temperature and flow rate of the heat exchange medium of the flow channels 11 can be adaptively adjusted according to the actual application temperature scenario of the heat exchange element.

[0065] Example 4 The difference between Example 4 and Example 3 is that, as Figure 9 , Figure 10 As shown, there is a clearance gap 10 between the long sides of two adjacent heat exchange plates 1, and the modular heat exchange plate structure also includes two inner support rings 3. The inner support rings 3 and the connecting structure 2 are located at the same axial position of the regular hexagonal tubular structure. In this embodiment, the inner support rings 3 are regular hexagonal in shape. The two inner support rings 3 are fixed by connecting rods 33. The inner support rings 3 include multiple straight sections 31 that correspond one-to-one with each heat exchange plate 1. The straight sections 31 abut against the inner surface of the heat exchange plate 1, and the apex of the inner support rings 3 has an inwardly curved arc section 32 to greatly avoid the connecting structure 2.

[0066] During assembly, the connecting structure 2 is installed sequentially between two adjacent heat exchange plates 1 along the transverse direction. Each heat exchange plate 1 is laid flat and not enclosed. The connecting structure 2 of the first heat exchange plate 1 is not engaged with the dovetail groove 15 of the last heat exchange plate 1. At this time, there is no gap or only a small gap between the long sides of the two adjacent heat exchange plates 1. The elastic energy storage capacity of the elastic bellows 22 is generally low. Then, the inner support ring 3 is placed on the flat heat exchange plates 1 to fix the first heat exchange plate 1. The last heat exchange plate 1 is taken out to wrap around the inner support ring 3, so that the inner surface of each heat exchange plate 1 can abut the straight section 31 of the inner support ring 3. During this process, the transverse pulling force of the operator will force the gap between the long sides of the two adjacent heat exchange plates 1 to increase. The elastic bellows 22 continues to store energy. Then, the connecting structure 2 of the first heat exchange plate 1 is engaged with the dovetail groove 15 of the last heat exchange plate 1 so that each heat exchange plate 1 is enclosed in a closed loop to form a tubular structure.

[0067] In this way, the elasticity of the bellows 22 will force the two adjacent heat exchange plates 1 to move laterally closer together. That is, the elasticity will force the entire tubular structure to contract, so that the tubular structure can more tightly hug the inner support ring 3. The inner support ring 3 will resist the hugging force to form a force balance, forming a rigid closed loop. Moreover, the heat exchange plates 1 are interlocked, resulting in stronger stability.

[0068] It should be noted that there is a clearance gap 10 between the long sides of two adjacent heat exchange plates 1. The tension of the connecting structure 2 can be efficiently converted into the pressure of the heat exchange plate 1 on the inner support ring 3, ensuring overall fit and stability. When the heat exchange plate 1 is heated and expands, the clearance gap 10 provides redundant space for thermal expansion, ensuring the geometric stability of the tubular structure under extreme temperature conditions.

[0069] Secondly, the existence of clearance 10 also allows for a certain assembly error during the assembly of heat exchange plate 1. After assembly, the adaptive deformation elastic force of the elastic bellows 22 will automatically align and lock, making assembly extremely convenient, and ensuring consistency and stability after assembly is very easy.

[0070] Example 5 The difference between Example 5 and Example 4 is that, as Figure 11 As shown, the conical piece 21 that mates with the first inclined groove wall 151 of the dovetail groove 15 is named the sliding compensation conical piece 201, and the conical piece 21 that mates with the second inclined groove wall 152 of the dovetail groove 15 is named the positioning anchoring conical piece 200. The cone angle of the inner conical surface of the sliding compensation conical piece 201 is 60° or 90°, and the cone angle of the inner conical surface of the positioning anchoring conical piece 200 is 30°. The first inclined groove wall 151 and the second inclined groove wall 152 are adaptively adjusted to ensure a proper fit.

[0071] The sliding compensation conical plates 201 of the two sets of connecting structures 2 on the long side of the heat exchange plate 1 are oriented in the same direction, so as to... Figure 11 Taking the perspective as an example, the sliding compensation cones 201 of both sets of connecting structures 2 are located above the positioning and anchoring cones 200.

[0072] A guide pipe 26 is fixed to the water inlet hole 211 of the sliding compensation cone 201. The guide pipe 26 is parallel to the axis of the cone 21. One end of the guide pipe 26 is directly opposite the outer cone surface of the positioning and anchoring cone 200, and there is a pressure relief gap between one end of the guide pipe 26 and the outer cone surface of the positioning and anchoring cone 200.

[0073] When heat exchange plate 1 undergoes thermal expansion, the relative positions of two adjacent heat exchange plates 1 will experience slight stretching or misalignment. If the cone angles of the inner cone surfaces of the two conical plates 21 are consistent, that is, their friction is the same, the sliding direction between the conical plates 21 and the inclined wall of the dovetail groove 15 will become random and disordered when thermal expansion stress accumulates, resulting in a stick-slip effect (when an object moves, it will experience a shaking phenomenon of moving and stopping due to changes in friction, that is, sometimes sliding and sometimes sticking). Furthermore, due to the irreversibility of thermal expansion and contraction, after multiple cycles, the entire regular hexagonal tubular body will twist and bend, thereby affecting the heat exchange effect and even affecting the smoothness of the flow channel 11. By setting sliding compensation cone plates 201 and positioning anchoring cone plates 200 with different cone angles, since the inner cone angle of the positioning anchoring cone plate 200 is extremely small, it can be understood that the positioning anchoring cone plate 200 and the second inclined groove wall 152 are locked and anchored, and the two will not or are extremely difficult to have relative displacement; while since the inner cone angle of the sliding compensation cone plate 201 is extremely large, it can be understood that the sliding compensation cone plate 201 can easily slide against the first inclined groove wall 151, with a high degree of freedom. In this way, when the heat exchange plate 1 thermally expands and the clearance gap 10 attempts to increase or decrease, all thermal strain and vibration displacement in the system will be automatically guided and smoothly absorbed and compensated by the microscopic sliding of the sliding compensation cone plate 201 on the first inclined groove wall 151 of the dovetail groove 15, while the positioning anchoring cone plate 200 and the first inclined groove wall 151 of the dovetail groove 15 remain stationary. The asymmetric design ensures that the heat exchange element expands and contracts in an orderly unidirectional manner each time it is heated or cooled. Even after experiencing thousands or tens of thousands of high and low temperature shocks, the tubular structure will maintain its regular hexagonal cross-section and straightness.

[0074] Secondly, the orderly unidirectional sliding eliminates high-frequency stick-slip vibration, transforming high-frequency destructive stress into low-frequency smooth compensation, which greatly extends the mechanical fatigue life of heat exchange plate 1 and dovetail groove 15 (in the case of disordered high-frequency stick-slip vibration, it is extremely easy to wear and bite and damage the mating position of dovetail groove 15 and conical plate 21).

[0075] By setting up the guide pipe 26, the high-pressure water flow of the guide pipe 26 directly impacts the outer cone surface of the positioning and anchoring cone 200, making the positioning and anchoring cone 200 more tightly anchored to the second inclined groove wall 152, and the anchoring effect is stronger.

[0076] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A modular heat exchanger plate structure, characterized in that, It includes multiple heat exchange plates (1) and a connecting structure (2) for connecting two adjacent heat exchange plates (1). Each heat exchange plate (1) has a flow channel (11). There is an included angle between two adjacent heat exchange plates (1). The connecting structure (2) is used to fix two adjacent heat exchange plates (1) and connect the flow channel (11) between two adjacent heat exchange plates (1). Dovetail grooves (15) are opened on the side of two adjacent heat exchange plates (1). The narrow opening of the dovetail groove (15) is located on the side of the heat exchange plate (1). The two inclined walls of the dovetail groove (15) are named the first inclined groove wall (151) and the second inclined groove wall (152), respectively. The outlet of the flow channel (11) of one of the two adjacent heat exchange plates (1) is located at the first inclined groove wall (151) of the dovetail groove (15), and the inlet of the flow channel (11) of the other heat exchange plate (1) is located at the second inclined groove wall (152) of the dovetail groove (15). The connecting structure (2) includes an elastic bellows (22). The heat exchange plate (1) has two conical plates (21) and an elastic bellows (22) made of metal. The two conical plates (21) are coaxial and their axes are parallel to the side of the heat exchange plate (1). The tips of the two conical plates (21) are set opposite to each other. The elastic bellows (22) and the two conical plates (21) together form a transfer cavity. The elastic force of the elastic bellows (22) is used to force the two conical plates (21) to move away from each other along their own axis. The conical plates (21) and the elastic bellows (22) rotate coaxially. One of the conical plates... The inner conical surface of the plate (21) is respectively attached to the two first inclined groove walls (151) of the two adjacent dovetail grooves (15), and the inner conical surface of the other conical plate (21) is respectively attached to the two second inclined groove walls (152) of the two adjacent dovetail grooves (15). The two conical plates (21) are respectively provided with water inlet hole (211) and water outlet hole (212). The water inlet hole (211) and water outlet hole (212) are respectively connected to the outlet of the flow channel (11) and the inlet of the flow channel (11) of the two adjacent heat exchange plates (1).

2. The modular heat exchanger plate structure according to claim 1, characterized in that, The sides of two adjacent heat exchange plates (1) have rounded corners and the sides of two adjacent heat exchange plates (1) abut against each other; the outer conical surfaces of the two conical plates (21) of the connecting structure (2) are coaxially fixed with annular slot bodies (23), and the two ends of the elastic bellows (22) are respectively inserted into the slot bodies (23) of the two conical plates (21).

3. The modular heat exchanger plate structure according to claim 1, characterized in that, The outer conical surfaces of the two conical plates (21) of the connecting structure (2) are respectively coaxially fixed with a first guide cylinder and a second guide cylinder, and the first guide cylinder and the second guide cylinder slide through and cooperate.

4. The modular heat exchanger plate structure according to claim 1, characterized in that, The heat exchange plate (1) is a long strip plate, and the long sides of two adjacent heat exchange plates (1) abut against each other. Each heat exchange plate (1) is enclosed to form a tubular structure, and the axial direction of the conical plate (21) is parallel to the axial direction of the tubular structure.

5. The modular heat exchanger plate structure according to claim 4, characterized in that, The heat exchange plate (1) has two dovetail grooves (15) arranged at intervals along its length on its long side. Two adjacent heat exchange plates (1) are connected by two connecting structures (2). The heat exchange plate (1) has two non-intersecting flow channels (11). The two flow channels (11) are arranged at intervals along the axial direction of the tubular structure. Cooling medium is introduced into one flow channel (11), and heating medium is introduced into the other flow channel (11).

6. The modular heat exchanger plate structure according to claim 1, characterized in that, It also includes two inner support rings (3). The heat exchange plate (1) is a long strip plate. There is a clearance gap (10) between the long sides of two adjacent heat exchange plates (1). Each heat exchange plate (1) is enclosed to form a tubular structure. Two dovetail grooves (15) are opened on the long side of the heat exchange plate (1) and are arranged at intervals along its length. Two adjacent heat exchange plates (1) are connected by two connecting structures (2). The inner support ring (3) is a regular polygon. The inner support ring (3) includes multiple straight sections (31) that correspond one-to-one with each heat exchange plate (1). The straight sections (31) abut against the inner surface of the heat exchange plate (1). The inner support ring (3) and the connecting structure (2) are located at the same axial position of the tubular structure. The axial direction of the conical plate (21) is parallel to the axial direction of the tubular structure. The elastic force of the elastic bellows (22) is converted into a force that forces the tubular structure to hug the inner support ring (3).

7. The modular heat exchanger plate structure according to claim 6, characterized in that, The conical piece (21) that mates with the first inclined groove wall (151) of the dovetail groove (15) is named the sliding compensation conical piece (201), and the conical piece (21) that mates with the second inclined groove wall (152) of the dovetail groove (15) is named the positioning anchoring conical piece (200). The cone angle of the inner conical surface of the sliding compensation conical piece (201) is 60° or 90°, and the cone angle of the inner conical surface of the positioning anchoring conical piece (200) is 30°. The two sliding compensating conical plates (201) on the long side of the heat exchange plate (1) face the same direction; the water inlet (211) of the sliding compensating conical plate (201) is fixed with a guide pipe (26), the guide pipe (26) is parallel to the axis of the conical plate (21), one end of the guide pipe (26) is directly opposite to the outer conical surface of the positioning and anchoring conical plate (200), and there is a pressure relief gap between one end of the guide pipe (26) and the outer conical surface of the positioning and anchoring conical plate (200).

8. The modular heat exchanger plate structure according to claim 1, characterized in that, The heat exchange plate (1) has a first semi-flow groove (111) on its surface. The heat exchange plate (1) has a filler strip (12) and a second semi-flow groove (112). The filler strip (12) is sealed and fixed to the opening of the first semi-flow groove (111). The first semi-flow groove (111) and the second semi-flow groove (112) together form the flow channel (11).

9. The processing technology of the modular heat exchanger plate structure according to claim 8, characterized in that, Includes the following steps: Processing of heat exchange plate (1): Cut the dovetail groove (15) on the side of the heat exchange plate (1), mill the first semi-flow groove (111) on one surface of the heat exchange plate (1), and seal the opening of the first semi-flow groove (111) with the filler strip (12) of the same material as the heat exchange plate (1); Assembly of heat exchange plate (1): According to the parameters of the heat exchange space, set the number of heat exchange plates (1) and the angle between two adjacent heat exchange plates (1), pre-position the position and angle of two adjacent heat exchange plates (1), ensure that the narrow openings of the two dovetail grooves (15) are opposite each other, and rotate the connecting joint. The angle of the two conical plates (21) of the structure (2) is adjusted so that the water inlet (211) and water outlet (212) of the two conical plates (21) can be adapted to the outlet and inlet of the flow channel (11) of the two adjacent heat exchange plates (1), respectively. Then, the two conical plates (21) are pressed to compress the elastic bellows (22) and reduce the axial length of the connecting structure (2). The connecting structure (2) is placed into the two dovetail grooves (15), and the conical plates (21) are released. The inner conical surface of the conical plates (21) is attached to the two inclined groove walls of the two dovetail grooves (15) respectively to complete the assembly of the heat exchange plate (1).

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