Standard chain combined type cog belt arrangement multi-layer flat tube heat exchanger core body mechanism

Abstract

The invention relates to the technical field of heat exchanger cores, in particular to a standard chain combined type cog belt arrangement multilayer flat tube heat exchanger core mechanism which comprises a protective shell unit and a core unit arranged on the inner side of the protective shell unit. A core body unit is formed by an externally-opened heat exchange assembly and an internally-closed heat exchange assembly, a sealed flowing channel is formed by a partition part, a long sealing part and a flat pipe assembly, the long sealing part and the partition part are clamped through a concave-convex matching structure, three-dimensional constraint is formed, the inner fin set is prevented from vibrating or displacing in the using process, and the service life of the inner fin set is prolonged. Mechanical interlocking is formed after the fins are embedded under the action of the stacking mode of the stacking locking assembly, and displacement of the fins in the direction perpendicular to the flow channel is effectively limited; the sealing assembly of the inner closed heat exchange assembly is guaranteed, stable limiting of the inner fin set is further guaranteed through mutual cooperation of the inner fins and the long-sealing condition, meanwhile, fluid can be assisted to flow out in the lateral direction, and the turbulent flow effect of damaging the boundary layer of the fluid is achieved.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger core technology, specifically to a standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism. Background Technology

[0002] The heat exchanger core structure refers to the core heat transfer component assembled from multiple layers of flat tubes, fins, side plates, and other parts through a chain and toothed belt drive. The multiple layers of flat tubes are driven by a chain drive module to move the base, aligning the flat tubes in the storage bin with the inlet of the layering mechanism. When the toothed belt rotates, its outer teeth cooperate with the layering mechanism to separate single-layer flat tubes from the storage bin and lift them to a designated height, achieving vertical layering and spaced arrangement of the multiple layers of flat tubes. The fins and flat tubes are arranged alternately to form airflow channels, enhancing heat exchange efficiency through heat conduction and convection between the fins and air. The side plates are driven by a synchronous toothed belt-driven side plate positioning mechanism to ensure precise alignment between the side plates and flat tubes, preventing flat tube misalignment or fin detachment during assembly.

[0003] In the prior art, such as the plate-fin heat exchanger disclosed in CN219161065U, which is applied in the field of heat exchanger technology, it includes several partition plates stacked together. Fins are provided between adjacent partition plates, and sealing strips are provided at both ends of the fins. Channels are formed between the fins and the partition plates. Filter components are provided on the partition plates corresponding to the two ends of the channels, and turbulence-inducing components are provided on the fins. This can filter the liquid flowing into the channels, reduce sediment in the liquid, reduce the possibility of channel blockage, and improve the heat exchange performance of the heat exchanger. To solve the problem that sediment easily blocks the flow channels and affects heat exchange performance during use, the above-mentioned document uses filter components to remove sediment from the liquid flowing into the channels.

[0004] However, in actual use, the baffles and side seals on both sides of the fins only adopt a planar fit or a simple slot design. During long-term operation, the fins are prone to displacement due to vibration or thermal expansion. Moreover, when connected as a whole, if the connection of a single baffle is not firm, the whole plate is prone to loosening, which can lead to blockage of the flow channel or reduction of heat dissipation area. Furthermore, conventional seals only serve a sealing function and do not actively intervene in the flow field. The cooling air naturally convects between the fins, which limits the heat exchange efficiency. Therefore, this invention proposes a standard chain-combined toothed belt arrangement multi-layer flat tube heat exchanger core mechanism to solve the problems of existing equipment having a simple assembly structure, being prone to fin displacement due to vibration or thermal expansion during long-term operation, thus affecting heat exchange efficiency, and being difficult to maintain. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a standard chain-combined toothed belt multilayer flat tube heat exchanger core mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism, comprising a protective shell unit and a core unit disposed inside it. The core unit includes an externally open heat exchange assembly, an internally closed heat exchange assembly, a stacked locking assembly, and a flat tube assembly. The externally open heat exchange assembly and the internally closed heat exchange assembly are arranged adjacent to each other. The flat tube assembly includes a first flat tube and a second flat tube, which are respectively installed at both ends of the internally closed heat exchange assembly. The externally open heat exchange assembly includes external fins. The internally enclosed heat exchange assembly includes a separator, an inner fin assembly, and a long sealing condition. The inner fin assembly is disposed between the inner sides of the separator and the long sealing condition. The separator includes a first separator plate and a second separator plate. The long sealing condition includes a first long sealing strip and a second long sealing strip. A first protrusion is fixedly installed on each of the two sides of the short sealing strip. Positioning grooves are respectively opened on the inner walls of the two ends of the short sealing strip near the first protrusion, and the openings are connected to the inner walls of the first protrusion. The stacking locking assembly includes a positioning post and a limiting sleeve. The limiting sleeve is disposed inside the positioning groove.

[0007] Preferably, the two sides of the first partition plate and the second partition plate are respectively provided with a slot and a matching slot, the side of the first long seal plate near the second partition plate is fixedly provided with a second protrusion that is adapted to and engages with the slot, and the side of the second long seal plate near the first partition plate is fixedly provided with a matching protrusion that is adapted to and engages with the matching slot.

[0008] Preferably, the inner fin assembly includes an inner fin, and fin end strips are fixedly connected to both ends of the inner fin. Long sealing strip one and long sealing strip two are respectively distributed on both sides of the inner fin. V-shaped grooves are respectively formed on the inner surface of long sealing strip one and long sealing strip two. The inner surface of the V-shaped grooves is movably engaged with both ends of the fin end strips.

[0009] Preferably, a through-hole is horizontally formed on the inner wall of the fin end bar, the through-hole communicating with the inner cavity of the circular tube, and a flow-disrupting hole is uniformly formed on the inner wall of the inner fin.

[0010] Preferably, circular through holes are respectively provided on the inner walls of the center of the first and second long seals, and one side of the circular through holes is connected to the V-shaped groove.

[0011] Preferably, the interior of the circular through hole is provided with a lateral flow element, which is composed of a circular tube, a parallel body and a flared body. An extension tube is provided at one end of the circular tube near the upper end cap, and the extension tube extends to the top of the upper side of the mounting frame. The parallel body and the flared body are integrally formed with the circular tube, and the inner surface of the parallel body is movably engaged with the outer surface of the fin end strip.

[0012] Preferably, the two sides of the inner fin are respectively in contact with the inner sides of the first and second partition plates and form a closed flow channel between them. The closed flow channel forms multiple sets of trapezoidal flow channels. A reinforcing member is provided between the trapezoidal flow channels. The reinforcing member includes a limiting post and an M-shaped support block. The M-shaped support block has an "M"-shaped plate structure. The M-shaped support block is fixedly installed on the outer surface of the inner fin. The outer surface of the limiting post is movably connected to the inner wall of one side of the M-shaped support block. A turbulence blade is rotatably connected to the outer surface of the limiting post through a bearing.

[0013] Preferably, the positioning posts are fixedly installed in the slot positions of the first partition plate and the corresponding slot positions of the second partition plate, and the outer surfaces of the positioning posts are slidably connected to the inner surfaces of the limiting sleeves.

[0014] Preferably, a fixed limiting ring is fixedly connected to the inner ring sidewall of the limiting sleeve, and a movable locking rod is slidably connected to the inner surface of the fixed limiting ring. The movable locking rod consists of an abutment head and a locking rod. The outer surface of the locking rod is movably connected to the inner wall of the fixed limiting ring. The end of the abutment head away from the locking rod is movably abutting against the inner side of the positioning post. A spring is provided between the abutment head and the fixed limiting ring. One end of the spring is fixedly connected to the outer surface of the fixed limiting ring, and the other end of the spring is movably connected to the inner side of the abutment head.

[0015] Preferably, a fixing protrusion is fixedly installed on the annular sidewall of the limiting sleeve, and an arc-shaped groove is formed on the annular outer wall of the contact head, with the inner surface of the arc-shaped groove being movably connected to the outer surface of the fixing protrusion.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism proposed in this invention consists of an externally open heat exchange component and an internally closed heat exchange component forming a core unit. A sealed flow channel is formed using separators, long sealing conditions, and flat tube components. The long sealing conditions and separators are engaged through a convex-concave fit structure, creating a three-dimensional constraint to prevent vibration or displacement of the inner fin assembly during use. Furthermore, the stacked locking components create a mechanical interlock after embedding, effectively limiting fin displacement perpendicular to the flow channel. This ensures the sealed assembly of the internally closed heat exchange component and, through the interaction between the inner fins and the long sealing conditions, further guarantees the stable positioning of the inner fin assembly. It also assists in the lateral flow of fluid, disrupting the fluid boundary layer and enhancing turbulence. This makes it less likely for liquid deposits to adhere to the fin surface and form scale, further reducing the possibility of blockage in the closed flow channel and improving the heat exchanger's heat exchange performance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional exploded structure diagram of the present invention; Figure 3 This is a schematic diagram of the assembly structure of the partially open heat exchange component and the internally closed heat exchange component of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at point AA; Figure 5 For the present invention Figure 4 A magnified structural diagram at point A; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A1; Figure 7 This is a three-dimensional structural diagram of a single-unit internally enclosed heat exchange component of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the cross-sectional structure at BB; Figure 9 For the present invention Figure 8 A magnified structural diagram at point B; Figure 10 For the present invention Figure 7 Schematic diagram of the cross-sectional structure at CC; Figure 11 For the present invention Figure 10 A magnified structural diagram at point C; Figure 12 This is a schematic diagram of the disassembled structure of the inner fin assembly of the present invention; Figure 13 For the present invention Figure 12 A magnified structural diagram at point D; Figure 14 For the present invention Figure 12 A magnified structural diagram at point E; Figure 15 This is a schematic diagram of the connection structure between the flat tube and the filter grid plate of the present invention; Figure 16 This is a schematic diagram of the connection structure between the flat tube assembly and the inner fin assembly of the present invention; Figure 17 This is a schematic diagram showing the disassembled structure of the partially open heat exchange component and the internally closed heat exchange component of the present invention; Figure 18 For the present invention Figure 17 Schematic diagram of the cross-sectional structure at DD; Figure 19 For the present invention Figure 18 A magnified structural diagram at point F; Figure 20 This is a schematic diagram of the connection structure between the positioning post and the limiting sleeve of the present invention; Figure 21 For the present invention Figure 20 A schematic diagram of the unlocked state of the cross-section at the EE location; Figure 22 For the present invention Figure 20 A schematic diagram of the locked state structure at the EE section.

[0018] In the diagram: 1. Protective housing unit; 11. Mounting frame; 12. Upper end cap; 13. Lower end cap; 14. Aluminum partition; 2. Core unit; 21. Outer fins; 211. Short sealing strip; 2111. Protrusion one; 22. Partition plate one; 221. Partition plate two; 220. Slot; 2200. Alignment slot; 23. Inner fin assembly; 231. Inner fins; 2311. Fin end strip; 23110. Through guide hole; 231100. Flow deflector hole; 2312. Reinforcing member; 23121. Limiting post; 23122. M-shaped support block; 23123. Flow deflector blade; 23 2. Long seal strip one; 2320. Protrusion two; 233. Long seal strip two; 2330. Pair of protrusions; 23200. Circular through hole; 23201. V-groove; 2321. Lateral flow part; 23211. Circular tube body; 23212. Parallel body; 23213. Flared body; 23214. Contact colloid; 24. Positioning post; 2110. Positioning groove; 25. Limiting sleeve; 2511. Fixing protrusion; 251. Fixing limiting ring; 252. Spring; 253. Movable locking rod; 2530. Arc groove; 3. Flat tube one; 30. Flat tube two; 31. Filter grid plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1, please refer to Figure 1-22This invention provides a technical solution: a standard chain-link combined toothed belt multi-layer flat tube heat exchanger core mechanism, including a protective shell unit 1 and a core unit 2 disposed inside it. The protective shell unit 1 includes a mounting frame 11, an upper end cap 12, and a lower end cap 13. Aluminum partitions 14 are respectively provided on both sides of the mounting frame 11. The inner sides of the upper end cap 12 and the lower end cap 13 are welded to the top of the mounting frame 11. Through slots are respectively opened at both ends of the mounting frame 11. An inlet is provided on one side of the upper end cap 12, and an outlet is provided on one side of the lower end cap 13 for the input and output of the heat exchange medium. The core unit 2 includes an externally open heat exchange assembly... The heat exchanger comprises an internally closed heat exchange assembly, a stacked locking assembly, and a flat tube assembly. An externally open heat exchange assembly is arranged adjacent to the internally closed heat exchange assembly. The flat tube assembly includes a first flat tube 3 and a second flat tube 30. Filter plates 31 are fixedly installed on the inner sides of the first flat tube 3 and the second flat tube 30, respectively. The outer surfaces of both ends of the filter plates 31 are movably engaged with the inner surfaces of the V-grooves 23201. The first flat tube 3 and the second flat tube 30 are respectively installed at both ends of the internally closed heat exchange assembly. The externally open heat exchange assembly includes outer fins 21 and short sealing strips 211. The internally closed heat exchange assembly includes a separator, an inner fin assembly 23, and a long sealing strip. The inner fin assembly 23 is disposed between the inner sides of the separator and the long sealing strip. The inner fin assembly 23 includes inner fins 231. The separators include a first separator 22 and a second separator 221. The first separator 22 and the second separator 221 have slots 220 and matching slots 2200 on their respective sides. The long sealing elements include a first long sealing strip 232 and a second long sealing strip 233. The first long sealing strip 232 has a protrusion 2320 fixedly added on the side near the second separator 221, which is adapted to engage with the slot 220. The second long sealing strip 233 has a matching protrusion 2330 fixedly added on the side near the first separator 22, which is adapted to engage with the matching slot 2200. The short sealing strip 211 has protrusions 2111 fixedly installed on both sides of its surface. Positioning grooves 2110 are respectively provided on the inner walls of both ends of the protrusion 2111, and the openings are connected to the inner walls of the protrusion 2111. Short sealing strips 211 are provided at both ends of the outer fin 21, and the two side surfaces of the short sealing strips 211 are respectively movably engaged with the inner sides of the partition plate 22 and the partition plate 221. The stacking locking assembly includes positioning posts 24 and limiting sleeves 25. The limiting sleeves 25 are provided inside the positioning grooves 2110. The positioning posts 24 are fixedly installed in the slots 220 of the partition plate 22 and the slots 2200 of the partition plate 221. The outer surfaces of the positioning posts 24 are slidably connected to the inner surfaces of the limiting sleeves 25. In this embodiment, both the first long seal 232 and the second long seal 233 are formed by aluminum alloy extrusion, with a "C" - shaped cross - section, and are adaptively clamped on both sides with the first partition plate 22 and the second partition plate 221; the inner fins 231 are located in the closed flow channel formed by the partition and the long seal condition, and directly participate in heat exchange; the outer fins 21 are exposed to the open environment or are coupled with the inner flow channel as an auxiliary heat - exchange surface. Its core function is to expand the heat - exchange area, enhance convective heat transfer by increasing the surface area, and guide the fluid flow direction. Moreover, the outer fins 21 have no closed boundary, and the fluid can flow freely. The two ends of the outer fins 21 are connected to the short seals 211 to seal the connection positions of the upper head 12 and the lower head 13, preventing liquid from entering the flow channels between the outer fins 21; when assembling the entire core body mechanism, first assemble the inner closed heat - exchange components. When laminating and fitting and clamping during assembly, the positioning posts 24 automatically abut against the limit sleeves 25 to achieve further mechanical self - locking and avoid displacement after assembly; after multiple groups of inner closed heat - exchange components are assembled, the multi - layer inner closed heat - exchange components drive the base to move through the chain drive module, aligning the inner closed components in the material library with the inlet of the stratification mechanism. When the toothed belt rotates, the arranged teeth on its outer side cooperate with the stratification mechanism to separate and lift the single - layer inner closed heat - exchange components from the material library to a specified height, achieving the vertical stratification and spaced arrangement of the multi - layer inner closed heat - exchange components; the outer open heat - exchange components and the inner closed heat - exchange components are alternately arranged adjacent to each other to form an air - flow channel, enhancing the heat - exchange efficiency through the heat conduction and convection between the outer fins 21 and the air.

[0021] Embodiment 2, refer to the appendix Figure 1-22Based on Embodiment 1, in order to achieve the assembly of the internally enclosed heat exchange component and improve the core structure strength and heat exchanger heat exchange effect: Circular through holes 23200 are respectively opened on the inner walls of the center of long seal strip 1 232 and long seal strip 233. One side of the circular through hole 23200 communicates with the V-shaped groove 23201. The circular through hole 23200 is located at the centerline of the inner walls of long seal strip 1 232 and long seal strip 233, and its length is equal to that of the long seal strip. A lateral flow element 2321 is provided inside the circular through hole 23200. The lateral flow element 2321 is composed of a circular tube 23211, a parallel body 23212, and a flared body 23213. An extension tube is provided at the end of the circular tube 23211 near the upper end cap 12, and the extension tube extends to the installation... On the upper top of frame 11, parallel body 23212 and flared body 23213 are integrally formed with circular tube 23211, and the inner surface of parallel body 23212 is movably engaged with the outer surface of fin end strip 2311; flared body 23213 and parallel body 23212 form a "Y" shaped structure, and contact adhesive 23214 is evenly arranged on the inner surface of flared body 23213, and the outer surface of contact adhesive 23214 is in movable contact with the two sides of fin end strip 2311; the contact adhesive 23214 here is a corrosion-resistant high-strength elastic adhesive, which can tightly fit the outer wall of fin end strip 2311, and can further reduce the vibration of inner fin 231 during operation, further avoid displacement, and improve heat exchange performance; In this embodiment, before the overall assembly of the core mechanism, the assembly of a single set of internally enclosed heat exchange components is realized. The circular through holes 23200 opened on the inner side of the long seal strip 1 232 and the long seal strip 233 accommodate the lateral flow component 2321. The circular tube 23211 serves as the flow channel for transporting liquid between the upper end cap 12 and the lower end cap 13. Some liquid enters the interior of the circular tube 23211 through the extension tube. The parallel body 23212 and the flared body 23213 are combined and fitted with the fin end strip 2311 to fix the position of the inner fin group 23, prevent the inner fin 231 from being misaligned or deformed due to vibration during transportation or operation, and ensure the uniformity of the flow channel. It is also worth noting that the long seal 1 232 and long seal 233 also serve as separators and edge reinforcements on the sides of the inner fins 231, which can significantly improve the bending and torsional strength of the core and avoid structural failure caused by pressure fluctuations or thermal stress. In addition, the long seals seal the flow channel to prevent fluid leakage, ensure that the fluid flows along the designed path, and maintain the heat exchange efficiency of the heat exchanger.

[0022] Example 3, refer to Appendix Figure 1-22Based on Embodiment 2, in order to achieve turbulence of the liquid in the closed flow channel formed by the internally enclosed heat exchange component and improve heat exchange efficiency: fin end strips 2311 are fixedly connected to both ends of the inner fin 231, long sealing strip one 232 and long sealing strip two 233 are distributed on both sides of the inner fin 231, and V-shaped grooves 23201 are respectively opened on the inner surface of long sealing strip one 232 and long sealing strip two 233. The inner surface of the V-shaped groove 23201 is movably engaged with both ends of the fin end strip 2311; a through guide hole 23110 is horizontally opened on the inner wall of the fin end strip 2311, and the through guide hole 23110 communicates with the inner cavity of the circular tube 23211; turbulence holes 231100 are uniformly opened on the inner wall of the inner fin 231. In this embodiment, after the inner fin assembly 23 is assembled with the first long seal 232 and the second long seal 233 on both sides, the heat exchange medium is introduced through the upper end cap 12. Most of the medium is transported through the closed flow channel formed by the inner fin 231 and the first and second partition plates 221. A small portion of the liquid flows through the inside of the circular tube 23211. A through guide hole 23110 is opened on the inner wall of the fin end bar 2311, which is connected to the inner cavity of the circular tube 23211. The small portion of liquid enters the closed flow channel horizontally through the through guide hole 23110 and is flowed through the turbulence holes 231100 evenly opened on the inner fin 231. At this time, the liquid in the closed flow channel flows in multiple directions, which can destroy the fluid boundary layer and enhance the fluid turbulence. This can prevent the precipitates in the liquid from adhering to the fin surface and forming scale, and can also increase the residence time of the liquid in the closed flow channel, further reducing the possibility of channel blockage and improving the heat exchanger's heat exchange performance.

[0023] Example 4, see attached document Figure 1-22 Based on Embodiment 3, in order to increase the structural strength of the inner fin 231: the two sides of the inner fin 231 are respectively in contact with the inner sides of the partition plate 1 22 and the partition plate 221 and form a closed flow channel between them, and the closed flow channel forms multiple sets of trapezoidal flow channels. A reinforcement 2312 is provided between the trapezoidal flow channels. The reinforcement 2312 includes a limiting post 23121 and an M-shaped support block 23122. The M-shaped support block 23122 has an "M" shaped plate structure. The M-shaped support block 23122 is fixedly installed on the outer surface of the inner fin 231, and the outer surface of the limiting post 23121 is movably connected to the inner wall of one side of the M-shaped support block 23122. The outer surface of the limiting post 23121 is rotatably connected to a baffle blade 23123 through a bearing. In this embodiment, as shown in the appendix Figure 9 , 12As shown in Figures 13 and 14, when most of the heat exchange medium enters the closed flow channel, it passes through multiple trapezoidal flow channels. The M-shaped support block 23122 further divides the trapezoidal flow channel into multiple flow channels and can provide structural support for the inner fins 231, enhancing their structural strength. When the medium flows through the closed flow channel in multiple directions, the flowing liquid can drive the turbulence blades 23123 to swing, increasing the residence time of the liquid and further enhancing the turbulence effect. The limiting post 23121 serves as a limiting connector for multiple sets of M-shaped support blocks 23122 and turbulence blades 23123, and can also provide a certain degree of turbulence effect for the heat exchange medium.

[0024] Example 5, see attached document Figure 1-22 Based on Embodiment 4, to achieve further staggered locking after the initial mounting and positioning of the core mechanism: a fixed limiting ring 251 is fixedly connected to the inner ring sidewall of the limiting sleeve 25; a movable locking rod 253 is slidably connected to the inner surface of the fixed limiting ring 251; the movable locking rod 253 consists of an abutment head and a locking rod; the outer surface of the locking rod is movably connected to the inner wall of the fixed limiting ring 251; the end of the abutment head away from the locking rod movably abuts against the inner side of the positioning post 24; a spring 252 is provided between the abutment head and the fixed limiting ring 251; the spring 252... One end of the spring 252 is fixedly connected to the outer surface of the fixed limiting ring 251, and the other end of the spring 252 is movably connected to the inner side of the contact head; the partition plate 22 near the slot 2200 and the partition plate 221 near the slot 220 are respectively provided with locking holes, and the inner surface of the locking holes is movably inserted into the outer surface of the locking rod; a fixed protrusion 2511 is fixedly installed on the annular side wall of the limiting sleeve 25, and an arc groove 2530 is provided on the annular outer wall of the contact head, and the inner surface of the arc groove 2530 is movably connected to the outer surface of the fixed protrusion 2511; In this embodiment, as shown in the appendix Figure 5-6 As shown and attached Figure 17-22 As shown, when assembling a set of internally enclosed heat exchange components and externally open heat exchange components, the positioning post 24 connected to one side of the partition plate 22 is inserted into the inner side of the adjacent limiting sleeve 25, as shown. Figure 21 With the positioning pin 24 not contacting the movable locking rod 253, when the slot 220 and the second protrusion 2320 are fully engaged, the positioning pin 24 pushes inward, contacting the contact head of the movable locking rod 253. Simultaneously, under the limiting action of the fixed protrusion 2511 and the arc-shaped groove 2530, the movable locking rod 253, formed by the contact head and the locking rod, moves forward while rotating. At this point, the locking rod is pushed out and enters the lock hole of the adjacent partition plate 22, forming an interlocking lock. (The attached text is incomplete and requires further context.) Figure 22This indicates that the positioning post 24 is in contact with the movable locking rod 253 and the locking rod is fully extended. With this setting, when the inner closed heat exchange component and the outer open component are initially locked together, the stacked locking component formed by the positioning post 24 and the limiting sleeve 25 achieves dual positioning of the two, and at the same time, automatic mechanical locking is achieved, thus achieving a triple locking effect, further preventing misalignment and displacement of the core mechanism, and improving the heat exchanger's heat exchange effect.

[0025] The working principle and usage process of this invention are as follows: First, before assembling the core mechanism as a whole, multiple sets of internally enclosed heat exchange components are assembled. The circular through holes 23200 opened on the inner side of the first long seal 232 and the second long seal 233 accommodate the lateral flow part 2321. The parallel body 23212 and the flared body 23213 are combined and fitted with the fin end strip 2311 to fix the position of the inner fin group 23, preventing the inner fins 231 from being misaligned or deformed due to vibration during transportation or operation. Then, when assembling a set of internally enclosed heat exchange components with externally open heat exchange components, the positioning post 24 connected to one side of the partition plate 22 is inserted into the inner side of the adjacent limiting sleeve 25. When the slot 220 and the protrusion 2320 are fully engaged, the positioning post 24 pushes inward, abutting the contact head of the movable locking rod 253. At the same time, under the limiting action of the fixed protrusion 2511 and the arc groove 2530, the movable locking rod 253 formed by the contact head and the locking rod rotates forward. As the core mechanism moves, the locking rod is pushed out and enters the locking hole of the adjacent partition plate 22, forming an interlocking lock. Furthermore, after the core mechanism is fully assembled, air flows through the channels between the outer fins 21, while the heat exchange medium is introduced through the inlet of the upper head 12. Most of the medium is transported through the closed channels formed by the inner fins 231, partition plate 22, and partition plate 221. A small portion of liquid flows inside the circular tube 23211. Through-holes 23110, which communicate with the inner cavity of the circular tube 23211, are opened on the inner wall of the fin end bar 2311. This small portion of liquid enters the closed channel horizontally through the through-holes 23110 and flows through the uniformly opened turbulence holes 231100 on the inner fins 231. The liquid in the closed channel flows in multiple directions, thus disrupting the fluid boundary layer and enhancing fluid turbulence. Finally, the liquid in the closed channel is discharged through the outlet of the lower head 13, achieving heat exchange.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A standard chain-link combined toothed belt multilayer flat tube heat exchanger core mechanism, comprising a protective shell unit (1) and a core unit (2) disposed inside it, characterized in that: The core unit (2) includes an externally open heat exchange assembly, an internally closed heat exchange assembly, a stacked locking assembly, and a flat tube assembly. The externally open heat exchange assembly and the internally closed heat exchange assembly are arranged adjacent to each other. The flat tube assembly includes a first flat tube (3) and a second flat tube (30). The first flat tube (3) and the second flat tube (30) are respectively installed at both ends of the internally closed heat exchange assembly. The externally open heat exchange assembly includes an outer fin (21) and a short sealing strip (211). The internally closed heat exchange assembly includes a separator, an inner fin group (23), and a long sealing condition. The inner fin group (23) is arranged inside the separator and the long sealing condition. The partition includes a partition plate 1 (22) and a partition plate 2 (221). The long sealing condition includes a long sealing strip 1 (232) and a long sealing strip 2 (233). The two sides of the short sealing strip (211) are respectively fixedly installed with a protrusion 1 (2111). The inner walls of the two ends of the short sealing strip (211) near the protrusion 1 (2111) are respectively provided with positioning grooves (2110) and the openings are connected to the inner walls of the protrusion 1 (2111). The stacking locking assembly includes a positioning post (24) and a limiting sleeve (25). The limiting sleeve (25) is set inside the positioning groove (2110).

2. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 1, characterized in that: The partition plate 1 (22) and partition plate 2 (221) are respectively provided with a slot (220) and a matching slot (2200). The long seal 1 (232) is fixedly provided with a protrusion 2 (2320) that is adapted to and engages with the slot (220) on the side near the partition plate 2 (221), and the long seal 2 (233) is fixedly provided with a matching protrusion (2330) that is adapted to and engages with the matching slot (2200) on the side near the partition plate 1 (22).

3. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 2, characterized in that: The inner fin assembly (23) includes an inner fin (231), and fin end strips (2311) are fixedly connected to both ends of the inner fin (231). Long sealing strip one (232) and long sealing strip two (233) are respectively distributed on both sides of the inner fin (231). V-shaped grooves (23201) are respectively opened on the inner surface of long sealing strip one (232) and long sealing strip two (233). The inner surface of the V-shaped groove (23201) is movably engaged with both ends of the fin end strip (2311).

4. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 3, characterized in that: A through hole (23110) is horizontally opened on the inner wall of the fin end bar (2311), and the through hole (23110) communicates with the inner cavity of the circular tube (23211). A disturbance flow hole (231100) is uniformly opened on the inner wall of the inner fin (231).

5. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 3, characterized in that: The inner walls of the first long seal (232) and the second long seal (233) are respectively provided with circular through holes (23200), and one side of the circular through hole (23200) is connected to the V-shaped groove (23201).

6. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 5, characterized in that: The circular through hole (23200) is provided with a lateral flow member (2321). The lateral flow member (2321) is composed of a circular tube (23211), a parallel body (23212), and a flared body (23213). An extension tube is provided at one end of the circular tube (23211) near the upper end cap (12). The extension tube extends to the top of the upper side of the mounting frame (11). The parallel body (23212) and the flared body (23213) are integrally formed with the circular tube (23211), and the inner surface of the parallel body (23212) is movably engaged with the outer surface of the fin end strip (2311).

7. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 4, characterized in that: The inner fin (231) is movably abutted against the inner sides of the first partition plate (22) and the second partition plate (221) on both sides, forming a closed flow channel between them. The closed flow channel forms multiple sets of trapezoidal flow channels. A reinforcing member (2312) is provided between the trapezoidal flow channels. The reinforcing member (2312) includes a limiting post (23121) and an M-shaped support block (23122). The M-shaped support block (23122) has an "M"-shaped plate structure. The M-shaped support block (23122) is fixedly installed on the outer surface of the inner fin (231). The outer surface of the limiting post (23121) is movably connected to the inner wall of one side of the M-shaped support block (23122). The outer surface of the limiting post (23121) is rotatably connected to a baffle blade (23123) through a bearing.

8. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 2, characterized in that: The positioning posts (24) are all fixedly installed in the slot (220) of the first partition plate (22) and the slot (2200) of the second partition plate (221). The outer surface of the positioning posts (24) is slidably connected to the inner surface of the limiting sleeve (25).

9. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 8, characterized in that: A fixed limiting ring (251) is fixedly connected to the inner ring side wall of the limiting sleeve (25). A movable locking rod (253) is slidably connected to the inner surface of the fixed limiting ring (251). The movable locking rod (253) consists of an abutment head and a locking rod. The outer surface of the locking rod is movably connected to the inner wall of the fixed limiting ring (251). The end of the abutment head away from the locking rod is movably abutting against the inner side of the positioning post (24). A spring (252) is provided between the abutment head and the fixed limiting ring (251). One end of the spring (252) is fixedly connected to the outer surface of the fixed limiting ring (251), and the other end of the spring (252) is movably connected to the inner side of the abutment head.

10. The standard chain-combined toothed belt multi-layer flat tube heat exchanger core mechanism according to claim 9, characterized in that: A fixing pin (2511) is fixedly installed on the annular sidewall of the limiting sleeve (25), and an arc groove (2530) is provided on the annular outer wall of the contact head. The inner surface of the arc groove (2530) is movably connected to the outer surface of the fixing pin (2511).

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