Tube fin type efficient heat exchanger and production method thereof

Abstract

The invention is suitable for the technical field of tube fin type heat exchangers, and provides a tube fin type efficient heat exchanger and a production method thereof, and a cleaning mechanism composed of an impeller, a connecting rod mechanism and a scraping ring is arranged in a heat exchange tube. The mechanism utilizes kinetic energy of flowing of fluid to impact the impeller to rotate, and the rotary motion is converted into the axial reciprocating motion of the scraping ring along the inner wall of the heat exchange tube through the planar connecting rod mechanism. According to the scheme, on-line real-time scraping cleaning without external power is achieved, a thermal boundary layer can be effectively damaged, deposited scales can be scraped away, and the problem that heat transfer resistance is increased due to dirt accumulation is fundamentally solved. The efficient performance of the heat exchanger can be maintained for a long time, production loss caused by regular shutdown cleaning is reduced, and the heat exchanger is particularly suitable for treating media which are large in viscidity or prone to scaling. A composite cooling mode is adopted, and the heat exchange efficiency is remarkably improved. Modularization and quick disassembly and assembly design are adopted, and maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tube-fin heat exchanger, and particularly relates to a tube-fin high-efficiency heat exchanger and a production method thereof. BACKGROUND

[0002] As a kind of high-efficiency heat exchange equipment, tube-fin heat exchanger is widely used in refrigeration, chemical industry, power, heating, ventilation and air conditioning and other fields by significantly increasing heat transfer area through installing fins on the outer wall. Its core advantage lies in compact structure and high heat transfer efficiency, which can improve efficiency by 30% to 80% compared with ordinary light tube heat exchanger.

[0003] However, the existing tube-fin heat exchanger still has some obvious technical shortcomings and deficiencies in long-term use: Firstly, it is easy to accumulate dirt and difficult to clean and maintain. When processing viscous fluid or medium containing impurities, the inner wall of the heat exchange tube is easy to gradually accumulate dirt, forming an additional thermal resistance layer, which will seriously reduce the heat exchange efficiency. The traditional cleaning method often needs to stop the machine and disassemble the equipment, or rely on external power-driven cleaning devices, which is complicated and affects the continuity of production, and increases the maintenance cost.

[0004] Secondly, the cooling method needs to be improved. Many finned tube heat exchangers mainly rely on air cooling (air cooling), and its cooling effect is restricted by the environment temperature to a certain extent. In high temperature or dry environment, the single air cooling capacity may be insufficient, and it is difficult to achieve the best heat exchange temperature difference, thereby limiting the further improvement of the overall performance.

[0005] Finally, the traditional structure is not convenient to maintain. Many existing heat exchangers use permanent connection methods such as welding, which makes the structure fixed and the modularization degree low. When individual heat exchange tubes are blocked or damaged, it is often difficult to perform local repair or replacement, and the entire heat exchange unit may need to be scrapped or disassembled on a large scale and at high cost, greatly increasing the maintenance cost and time cost of the whole life cycle of the equipment.

[0006] Therefore, it is of great practical significance to develop a tube-fin high-efficiency heat exchanger and a production method thereof which can realize efficient self-cleaning, strengthen cooling effect and facilitate maintenance. SUMMARY

[0007] The present application provides a tube-fin high-efficiency heat exchanger and a production method thereof, which aims to solve the problems of current tube-fin heat exchanger without self-cleaning ability, insufficient cooling effect and inconvenient maintenance.

[0008] The present application is implemented as follows: a tube-fin high-efficiency heat exchanger, comprising: a chassis; A tube-fin heat exchanger body is arranged on the upper side of the chassis, and the tube-fin heat exchanger body comprises a plurality of heat exchange tubes and fin groups which are arranged in parallel and collectively sleeved on the heat exchange tubes; A positioning assembly is arranged on the upper side of the chassis for assembling the tube-fin heat exchanger body. A cooling component is arranged on one side of the tube-fin heat exchanger body for cooling the tube-fin heat exchanger body and the fin groups. A cleaning mechanism is arranged on the inner side of the heat exchange tubes for cleaning the inner wall of the heat exchange tubes.

[0009] Preferably, the tube-fin heat exchanger body comprises two sealing plates, and a plurality of cross beams are arranged at equal intervals on one side of each of the two sealing plates. N long frames are fixedly connected to the upper and lower sides of the cross beams on one side of one of the sealing plates, and N-1 long frames are fixedly connected to the upper and lower sides of the cross beams on one side of the other sealing plate. One short frame fixedly connected to the cross beam is arranged on each side of each of the N-1 long frames in each row. The heat exchange tubes are detachably clamped between the two long frames or the long frame and the short frame in position. The end of the long frame and the short frame close to the sealing plate is in an open state. A vertical pipe is in communication between one of the two short frames in the same row and the other two short frames in another row.

[0010] Preferably, a liquid discharge flange and a liquid inlet flange are fixedly penetrated on the outer wall of one of the sealing plates, and the liquid discharge flange and the liquid inlet flange are fixedly extended into the short frame on one side thereof.

[0011] Preferably, a first partition plate and a second partition plate are fixedly connected in the long frame, and the long frame is divided into two parts by the first partition plate and the second partition plate. A plurality of inclined flow grooves are penetrated and formed in the first partition plate. A rotatable impeller is suspended and installed by a hanger plate at the center of the second partition plate.

[0012] Preferably, the cleaning mechanism comprises a first rotating rod fixedly penetrated at the center of the hanger plate, the first rotating rod is rotatably penetrated at the center of the first partition plate, and one second rotating rod is rotatably connected to each of the two inner side walls of the long frame in position. One first connecting rod is fixedly connected to each of the ends of the second rotating rod and the first rotating rod close to each other. A second connecting rod is hingedly connected between the two first connecting rods. The second connecting rod extends into the heat exchange tube and is hingedly connected to a traction rod. A plurality of scraping rings for scraping and cleaning the inner wall of the heat exchange tube are fixedly connected to the outer wall of the traction rod.

[0013] Preferably, the tube-fin heat exchanger body further comprises a fastener connected between the sealing plate and the crossbeam, the fastener comprises a limiting seat fixed to the side wall of the crossbeam and a fixing plate fixed to the side wall of the sealing plate, a embedded rod is detachably embedded in the inner side of the limiting seat, a threaded rod is fixed to the outer wall of the embedded rod, a swing frame is hinged to the outer side of the fixing plate, the threaded rod is slidingly sleeved in the inner side of the swing frame, and the swing frame and the threaded rod are fixed by a bolt before the threaded rod.

[0014] Preferably, the cooling component comprises a water storage tank arranged on the top of the chassis, a fan is fixedly installed on the upper side of the water storage tank, a cross frame is fixed to the inner wall of the outer frame of the fan, an electric motor for driving the rotation of the fan of the fan is fixedly installed on the outer wall of the cross frame, a water delivery mechanism is arranged on one side of the water storage tank, a water inlet pipe is fixedly communicated between the water delivery mechanism and the water storage tank, an atomizing pipe is arranged on one side of the water delivery mechanism and is in communication with the inside of the water delivery mechanism, a vertical plate is fixed to the top of the chassis, and a transmission component for driving the water delivery mechanism is arranged between the vertical plate and the fan. The transmission component comprises two horizontal shafts, one of which is rotatably connected to the outer wall of the vertical plate, and the other is fixed to the center of the fan of the fan, one swing rod is fixed to each end of the two horizontal shafts close to each other, a connecting shaft is fixed between the two swing rods, and a transmission rod is rotatably sleeved on the outer wall of the connecting shaft.

[0015] Preferably, the water delivery mechanism comprises a water delivery tank, symmetrical partition frames are fixed to the inner side of the water delivery tank, communication holes are formed on both sides of the partition frames, a piston is slidingly sleeved between the inner walls of the two partition frames and the water delivery tank, a push-pull rod is fixed to the top end of the piston, and the push-pull rod is hinged to the transmission rod. A one-way valve assembly is arranged on one side of each communication hole, the one-way valve assembly comprises a sealing cover, a plug rod, and a return spring, the plug rod is fixed to the outer wall of the sealing cover and slidingly penetrates the partition frame, the return spring is sleeved on the outer side of the plug rod, and the plug rod is connected to the outer wall of the partition frame and the one end of the plug rod at both ends thereof.

[0016] Preferably, the positioning assembly comprises a cavity formed in the top of the chassis, two bases are slidingly sleeved on the inner side of the cavity, the two bases are fixed to the short frame and the long frame at the bottom respectively, a bidirectional screw rod and a positioning rod are rotatably connected to the inner side of the cavity, the bidirectional screw rod is threadedly penetrated in the inner part of the cavity, the positioning rod is slidingly penetrated in the inner part of the cavity, and a turntable is fixed to one end of the bidirectional screw rod.

[0017] A production method of a tube-fin high-efficiency heat exchanger, comprising the following steps: Step one: pre-installation of the main frame The interval between the two bases on the chassis is adjusted by the positioning assembly, the matrix distribution heat exchange pipe with fin group is arranged between the two sealing plates, the base with long frame and short frame is approached by rotating the two-way screw rod of the positioning assembly, the two ends of the heat exchange pipe are inserted into the corresponding frame body and the preliminary positioning and sealing are realized; Step two: seal the plate and the internal mechanism The sealing plate is fastened to the cross beam by fasteners, the bolts on the threaded rod are tightened, the embedded rod is tightly clamped in the limiting seat, and the sealing plate is tightly attached to the cross beam, so that the ends of the long frame and the short frame are sealed. Step three: integrate the cooling and atomization system The water delivery mechanism is connected to the water storage tank through the water inlet pipe, the atomization pipe is aligned with the direction of the heat exchanger body, the transmission component is installed, and the rotation of the fan of the fan is converted into the reciprocating motion of the piston in the water delivery mechanism through the cross shaft, swing rod, connecting shaft and transmission rod. Step four: overall linkage test Connect the power supply, start the motor to drive the fan and water delivery mechanism, the fan air and the water mist sprayed by the atomization pipe cooperatively cover the surface of the heat exchange pipe and the fin group, at the same time, the medium is introduced, and the cleaning mechanism cleans the pipe wall under the driving of the medium flow.

[0018] Compared with the related art, the tube-fin type high-efficiency heat exchanger and the production method thereof provided by the present application have the following beneficial effects: 1. Realize efficient self-cleaning and maintain long-term stable heat exchange: a cleaning mechanism composed of an impeller, a connecting rod mechanism and a scraper ring is arranged in the heat exchange pipe. The mechanism uses the kinetic energy of the fluid flow to impact the impeller rotation, and converts the rotary motion into the axial reciprocating motion of the scraper ring along the inner wall of the heat exchange pipe through the planar connecting rod mechanism. This scheme realizes online real-time scraping cleaning without external power, can effectively break the thermal boundary layer and remove the accumulated dirt, and fundamentally suppresses the problem of increased heat transfer thermal resistance caused by dirt accumulation. This helps to maintain the high efficiency of the heat exchanger for a long time, reduces the production loss caused by regular shutdown for cleaning, and is especially suitable for processing media with high viscosity or easy to scale.

[0019] 2. Adopt composite cooling mode to significantly improve heat exchange efficiency: a composite cooling component composed of a fan and an atomization system is integrated. The rotary power of the fan is transmitted to the piston type water delivery mechanism through a set of transmission mechanism, realizing synchronous wind cooling and water mist evaporation cooling of the heat exchanger body. The synergistic effect of wind cooling and water mist evaporation cooling overcomes the shortcoming of limited cooling capacity of single wind cooling in high temperature or dry environment. Water mist evaporation can absorb a large amount of heat, which can significantly enhance the cooling effect of the heat exchange pipe and the fin group, thereby increasing the heat transfer temperature difference and improving the overall heat exchange efficiency. The design is driven by a single motor, which is clever in structure and reduces energy consumption and manufacturing cost.

[0020] 3. Modular and quick dismounting design, facilitating maintenance and repair: through positioning components (such as the base adjusted by bidirectional screw rod) and special fasteners (such as the hinged swing frame and embedded rod), quick clamping and sealing between the heat exchange pipe and the collecting frame body, as well as convenient connection and locking of the sealing plate and the external frame are realized. This modular design makes the installation and dismounting process of the heat exchange pipe more convenient, avoiding the traditional brazing or complex flange connection. When a single heat exchange pipe needs to be cleaned or replaced, it can be quickly done, greatly reducing the difficulty, time and cost of daily maintenance, improving the maintainability and service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the structure of the cooling component of the present application; Figure 3 is a schematic diagram of the structure of the water delivery mechanism of the present application; Figure 4 is a schematic diagram of the main assembly structure of the tube-fin heat exchanger of the present application; Figure 5 is a schematic diagram of the partial cross-sectional structure of the crossbeam of the present application; Figure 6 is a schematic diagram of the liquid flow direction of the tube-fin heat exchanger of the present application; Figure 7 is Figure 4 is an enlarged structure schematic diagram of position A in the middle; Figure 8 is a schematic diagram of the assembly structure of the cleaning mechanism of the present application.

[0022] In the figure: 1. Chassis; 2. Positioning component; 21. Cavity; 22. Turntable; 23. Bidirectional screw rod; 24. Base; 25. Positioning rod; 3. Tube-fin heat exchanger main body; 31. Sealing plate; 32. Drain flange; 33. Liquid inlet flange; 34. Heat exchange pipe; 35. Fastener; 351. Limiting seat; 352. Embedded rod; 353. Threaded rod; 354. Swing frame; 355. Fixed plate; 36. Long frame; 361. First partition; 362. Second partition; 363. Flow guide groove; 364. Impeller; 365. Hanging plate; 37. Crossbeam; 38. Short frame; 39. Vertical pipe; 4. Cooling components; 41. Motor; 42. Cross-shaped component; 43. Fan; 44. Transmission components; 441. Transmission rod; 442. Coupling; 443. Swing rod; 444. Horizontal shaft; 45. Vertical plate; 46. Atomizing tube; 47. Water supply mechanism; 471. Water tank; 472. Partition; 473. Connecting hole; 474. Piston; 475. Sealing cover; 476. Insert rod; 477. Return spring; 478. Push-pull rod; 48. Water inlet pipe; 49. Water storage tank; 5. Fin assembly; 6. Cleaning mechanism; 61. First rotating rod; 62. Second rotating rod; 63. First connecting rod; 64. Second connecting rod; 65. Traction rod; 66. Scraper ring. Detailed Implementation

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example 1

[0025] A preferred embodiment of the tube-finned high-efficiency heat exchanger and its manufacturing method provided by the present invention is as follows: Figures 1 to 8 As shown: A tube-fin high-efficiency heat exchanger and its manufacturing method, including a base frame 1; a tube-fin heat exchanger body 3 disposed on the upper side of the base frame 1, the tube-fin heat exchanger body 3 including a plurality of heat exchange tubes 34 and fin groups 5 disposed thereon and arranged in parallel; a positioning component 2 disposed on the upper side of the base frame 1 for assembling the tube-fin heat exchanger body 3; and a cleaning mechanism 6 disposed on the inner side of the heat exchange tubes 34 for cleaning the inner wall of the heat exchange tubes 34.

[0026] Specifically, the tube-fin heat exchanger body 3 comprises two sealing plates 31, and a plurality of cross beams 37 are equidistantly arranged on one side of each of the two sealing plates 31. N long frames 36 are fixedly connected to the upper and lower sides of the cross beams 37 on one side of one of the sealing plates 31, and N-1 long frames 36 are fixedly connected to the upper and lower sides of the cross beams 37 on one side of the other sealing plate 31. One short frame 38 fixedly connected to the cross beam 37 is arranged on the two sides of each row of N-1 long frames 36. The heat exchange tube 34 is detachably clamped between the two long frames 36 or the long frame 36 and the short frame 38 in position. The end of the long frame 36 and the short frame 38 close to the sealing plate 31 is in an open state. A vertical pipe 39 is in communication between one of the two short frames 38 and the other two short frames 38 in the same row. The outer wall of one of the sealing plates 31 is fixedly penetrated by a liquid discharge flange 32 and a liquid inlet flange 33, and the liquid discharge flange 32 and the liquid inlet flange 33 are fixedly extended into the short frame 38 on one side thereof.

[0027] Further, the long frame 36 is fixedly connected with a first partition plate 361 and a second partition plate 362 inside, and the inside of the long frame 36 is divided into two parts by the first partition plate 361 and the second partition plate 362. A plurality of inclined flow guide grooves 363 are formed in the first partition plate 361. A rotatable impeller 364 is suspendedly installed on the center of the second partition plate 362 by a hanger plate 365.

[0028] Further, the tube-fin heat exchanger body 3 further comprises a fastener 35 connected between the sealing plate 31 and the cross beam 37. The fastener 35 comprises a limiting seat 351 fixedly connected to the side wall of the cross beam 37 and a fixed plate 355 fixedly connected to the side wall of the sealing plate 31. An embedded rod 352 is detachably embedded in the inner side of the limiting seat 351. A threaded rod 353 is fixedly connected to the outer wall of the embedded rod 352. A swing frame 354 is hingedly connected to the outer side of the fixed plate 355. The threaded rod 353 is slidingly sleeved on the inner side of the swing frame 354, and the swing frame 354 and the threaded rod 353 are fixedly connected by a bolt before the threaded rod 353.

[0029] Specifically, the cleaning mechanism 6 comprises a first rotating rod 61 fixedly penetrating the center of the hanging plate 365, the first rotating rod 61 rotatingly penetrating the center of the first partition plate 361, and two inner side walls of the long frame 36 in a positionally corresponding relationship are both rotationally connected with a second rotating rod 62, the second rotating rod 62 is fixedly connected with a first connecting rod 63 at an end close to the first rotating rod 61, two first connecting rods 63 are hingedly connected with a second connecting rod 64, the second connecting rod 64 extends to the inside of the heat exchange pipe 34 and is hingedly connected with a traction rod 65, and the outer wall of the traction rod 65 is fixedly connected with a plurality of scraping rings 66 for scraping and cleaning the inner wall of the heat exchange pipe 34. The innovation of the cleaning mechanism 6 lies in its energy self-sufficiency and real-time cleaning characteristics. The principle is to use the kinetic energy generated when the fluid flows through the guide groove 363 to drive the impeller 364 to rotate, and then convert the rotary motion into the linear reciprocating motion of the scraping ring 66 through the planar linkage mechanism. The core advantage of this design is that it does not require an external power source, and only relies on the fluid energy of the system itself to achieve continuous online cleaning, which can effectively break the boundary layer, scrape off the accumulated dirt, and significantly inhibit the problem of increased heat transfer resistance caused by dirt accumulation, thereby long-term maintaining the high efficiency of the heat exchanger.

[0030] Specifically, the positioning assembly 2 comprises a cavity 21 opened on the top of the base frame 1, two bases 24 are slidingly sleeved on the inner side of the cavity 21, the two bases 24 are respectively fixedly connected with the short frame 38 and the long frame 36 fixedly connected on the bottom, a bidirectional screw rod 23 and a positioning rod 25 are rotationally connected on the inner side of the cavity 21, the bidirectional screw rod 23 is threadedly penetrated in the inside of the cavity 21, the positioning rod 25 is slidingly penetrated in the inside of the cavity 21, and a rotating disc 22 is fixedly connected at one end of the bidirectional screw rod 23. The positioning assembly 2 realizes the synchronous and opposite or back-and-forth motion of the two bases 24 by using the bidirectional screw rod 23 mechanism. The principle is to convert the rotary motion into precise linear displacement, thereby controlling the clamping force of the frame body on the end of the heat exchange pipe 34. The significant advantage of this design is to realize the modular installation and quick disassembly of the heat exchange pipe 34, avoiding the traditional brazing or complex flange connection, which not only simplifies the initial assembly process, but also provides great convenience for future cleaning or replacement of a single heat exchange pipe 34, effectively reducing maintenance cost and time.

[0031] In the embodiment, the sealing plate 31 is mounted on one side of the cross beam 37 through the fastener 35, the bolt on the threaded rod 353 is tightened, the embedded rod 352 is tightly embedded in the groove of the limiting seat 351, and the sealing plate 31 and the cross beam 37 are tightly attached, so that the opening end of the long frame 36 and the short frame 38 is sealed by the sealing plate 31. During the later cleaning and maintenance, the sealing plate 31 can be disassembled from the cross beam 37 through the fastener 35, so that the short frame 38 and the long frame 36 are maintained.

[0032] In this embodiment, when assembling the finned heat exchanger body 3 using the positioning component 2, the heat exchange tubes 34, with multiple fin groups 5 mounted on their outer walls in a matrix arrangement, are placed between two sealing plates 31. Then, by rotating the turntable 22, the turntable 22 drives the bidirectional lead screw 23 to rotate, causing the two bases 24 to move closer together within the cavity 21. This allows the aligned long frame 36 and short frame 38 to move closer together, thereby pressing and sealing both ends of the heat exchange tubes 34 inside the frame. Both ends of the heat exchange tubes 34 are equipped with sealing rings, achieving a reliable seal through the compression of the frame. In subsequent cleaning and maintenance, the heat exchange tubes 34 can be disassembled simply by moving the aligned long and short frames 38 apart using the positioning component 2, facilitating cleaning and maintenance of the heat exchange tubes 34.

[0033] In this embodiment, during heat exchange, material is injected into one of the short frames 38 through the liquid inlet flange 33, as referenced. Figure 6 The material flows in an S-shaped trajectory through the long frame 36, short frame 38, heat exchange tube 34, and riser 39, and is finally discharged through the drain flange 32. During this process, refer to... Figure 8 When the material enters the inner side of the long frame 36 through a heat exchange tube 34, it generates a swirling flow after passing through the guide groove 363, impacting the impeller 364 and causing it to rotate. The impeller 364 drives the first rotating rod 61 to rotate, which in turn converts the rotational motion of the impeller 364 into the reciprocating motion of the traction rod 65 along the axis of the heat exchange tube 34 through a linkage mechanism composed of the first connecting rod 63, the second connecting rod 64, and the traction rod 65. Multiple scraper rings 66 fixed on the traction rod 65 reciprocate accordingly, thereby scraping away the dirt on the inner wall of the heat exchange tube 34, achieving a self-cleaning function, and preventing the accumulation of highly viscous and heavily soiled materials on the inner wall of the heat exchange tube 34, which would cause a significant reduction in heat exchange efficiency.

[0034] It should be noted that the scraper ring 66 itself can be made of a flexible scraper lip or a high-strength engineering polymer material with self-lubricating properties (such as filled polytetrafluoroethylene PTFE, polyetheretherketone PEEK, or special wear-resistant nylon composite material). These materials not only have excellent wear resistance, but also have an extremely low dynamic coefficient of friction with the metal tube wall (which can be less than 0.2), which can significantly reduce the degree to which frictional work is converted into heat during the movement process.

[0035] In addition, in actual application, the operation of the cleaning mechanism 6 is not continuously high-speed. The movement frequency is associated with the flow rate and characteristics of the medium. When the medium flow rate is low or the cleanliness is high, the rotating speed of the impeller 364 is reduced, so that the reciprocating movement frequency of the scraper ring 66 is also kept at a low level through the connecting rod mechanism. More importantly, the system can be set to intermittent operation mode. For example, when the heat transfer efficiency is reduced due to the accumulation of dirt in the heat exchange pipe 34 after a certain time of cumulative operation, the cleaning mechanism is "activated" by temporarily increasing the medium flow rate to perform one or several times of strong scraping. This "low frequency and short time working" mode greatly limits the total friction stroke of the scraper ring 66 in unit time, thereby effectively controlling the total amount of friction heat generated. Embodiment 2

[0036] On the basis of embodiment 1, the preferred embodiment of the tube fin high-efficiency heat exchanger and the production method thereof provided by the application comprises Figures 1 to 8 As shown in the figure: a tube fin high-efficiency heat exchanger and a production method thereof, further comprising a cooling component 4 arranged on one side of the tube fin heat exchanger main body 3, for cooling the tube fin heat exchanger main body 3 and the fin group 5.

[0037] Specifically, the cooling component 4 comprises a water storage tank 49 arranged on the top of the chassis 1, a fan 43 fixedly installed on the upper side of the water storage tank 49, a cross 42 fixedly connected to the outer wall of the fan 43, a motor 41 fixedly installed on the outer wall of the cross 42 for driving the fan 43 to rotate, a water delivery mechanism 47 arranged on one side of the water storage tank 49, a water inlet pipe 48 fixedly and communicatively connected between the water delivery mechanism 47 and the water storage tank 49, an atomizing pipe 46 arranged on one side of the water delivery mechanism 47 and in communication with the inside of the water delivery mechanism 47, and a vertical plate 45 fixedly connected to the top of the chassis 1 and provided with a transmission component 44 for driving the water delivery mechanism 47 between the vertical plate 45 and the fan 43.

[0038] Further, the transmission component 44 comprises two horizontal shafts 444, one of which is rotatably connected to the outer wall of the vertical plate 45, and the other of which is fixedly connected to the center of the fan on the fan 43, one swing rod 443 is fixedly connected to each end of the two horizontal shafts 444 close to each other, a connecting shaft 442 is fixedly connected between the two swing rods 443, and a transmission rod 441 is rotatably sleeved on the outer wall of the connecting shaft 442. The transmission component 44 is essentially a space linkage mechanism. Its principle is to convert the rotating movement of the fan shaft of the fan 43 into the planar movement of the end of the transmission rod 441 through the swing rod 443 and the connecting shaft 442. The advantage of this design is that it can efficiently transmit the rotating power of the fan 43 to the fixed-position water delivery mechanism 47, realize the function of driving the fan and the atomizing pump by a single motor 41, simplify the structure, and reduce energy consumption and manufacturing cost.

[0039] Furthermore, the water delivery mechanism 47 includes a water tank 471. A partition 472 is symmetrically fixed to the inner side of the water tank 471. Each partition 472 has a connecting hole 473 on both sides. A piston 474 is slidably fitted between the two partitions 472 and the inner wall of the water tank 471. A push-pull rod 478 is fixed to the top of the piston 474 and is hinged to a transmission rod 441. A one-way valve assembly is provided on one side of each connecting hole 473. The one-way valve assembly includes a sealing cap 475, a rod 476, and a return spring 477. The rod 476 is fixed to the outer wall of the sealing cap 475 and slides through the partition 472. The return spring 477 is fitted on the outer side of the rod 476, and both ends of the rod 476 are connected to one end of the rod 476 and the outer wall of the partition 472, respectively. The water delivery mechanism 47 is a double-acting piston pump driven by a connecting rod. The principle behind this design lies in the reciprocating motion of piston 474, combined with the opening and closing of the one-way valve assembly, which alternately creates a process of negative pressure water intake and positive pressure water drainage in the two chambers. The advantage of this design is that, through a rational flow channel and valve design, continuous and stable water delivery is achieved. Simultaneously, the mechanical one-way valve has a simple structure and reliable operation, ensuring a stable supply of atomized water.

[0040] In this embodiment, when the power is turned on, the motor 41 is started. The motor 41 drives the fan on the blower 43 to rotate, cooling the heat exchange tubes 34 on the main body 3 of the tube-fin heat exchanger and the finned assembly 5 on the outer wall of the heat exchange tubes 34. At the same time, the fan drives one of the horizontal shafts 444 to rotate. Under the action of the swing arm 443, the connecting shaft 442 pushes and pulls the push-pull rod 478 reciprocally through the transmission rod 441. When the push-pull rod 478 drives the piston 474 to move downward, the volume of the cavity above the piston 474 increases, forming a negative pressure. At this time, the one-way valve connected to the water inlet pipe 48 opens to allow water to enter, while the one-way valve connected to the atomizing pipe 46 closes. At the same time, the volume of the cavity below the piston 474 decreases, and the pre-stored water in it is squeezed, pushing open the corresponding outlet one-way valve and spraying out through the atomizing pipe 46. When the piston 474 moves upward, the action is reversed, thereby achieving continuous water supply.

[0041] For details, please refer to Figure 3When the push-pull rod 478 drives the piston 474 to move downward, the cavity volume above the piston 474 increases to form a negative pressure, the communication holes 473 at the upper right corner and the lower left corner are opened, the communication holes 473 at the upper left corner and the lower right corner are closed, the water inside the water storage tank 49 enters the cavity above the piston 474 through the water inlet pipe 48 and the communication holes 473, and the water in the cavity below the piston 474 is extruded to pass through the communication holes 473 at the lower left corner to be discharged into the cavity on the left side of the water delivery tank 471 and sprayed upward through the atomizing pipe 46, and then blown to the tube fin heat exchanger body 3 by the fan 43 for atomization and evaporation cooling. Conversely, when the push-pull rod 478 moves upward, the communication holes 473 at the upper right corner and the lower left corner are closed, the communication holes 473 at the upper left corner and the lower right corner are opened, and the atomizing water can also be supplemented into the atomizing pipe 46 through the water delivery mechanism 47.

[0042] It should be noted that the circuits and electronic components and modules involved in the present application are all prior art, and those skilled in the art can fully realize them without further description. The content protected by the present application does not involve the improvement of software and methods.

[0043] In the embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. In actual implementation, another division mode can be used. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or in other forms.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still make some modifications or adjustments to the features of the embodiments of the present application according to the circumstances without conflict, without creative labor, so as to obtain different technical solutions which do not deviate from the concept of the present application in essence. These technical solutions also belong to the scope of the present application.

Claims

1. A tube-finned high-efficiency heat exchanger, characterized in that, include: Base frame (1); The tube-fin heat exchanger body (3) is set on the upper side of the base frame (1). The tube-fin heat exchanger body (3) includes multiple heat exchange tubes (34) and fin groups (5) that are sleeved on it and arranged in parallel. Positioning assembly (2) is set on the upper side of the base frame (1) for assembling the tube-fin heat exchanger body (3). A cooling component (4) is provided on one side of the tube-fin heat exchanger body (3) for cooling the tube-fin heat exchanger body (3) and the fin assembly (5). A cleaning mechanism (6) is provided inside the heat exchange tube (34) for cleaning the inner wall of the heat exchange tube (34).

2. The tube-finned high-efficiency heat exchanger as described in claim 1, characterized in that, The tube-fin heat exchanger body (3) includes two sealing plates (31). Several crossbeams (37) are equidistantly arranged on one side of each of the two sealing plates (31). N long frames (36) are fixedly connected to the upper and lower sides of the crossbeam (37) on one side of one sealing plate (31). N-1 long frames (36) are fixedly connected to the upper and lower sides of the crossbeam (37) on the other side of the sealing plate (31). Each row of N-1 long frames (36) is provided with N-1 long frames (36) on both sides. There is a short frame (38) fixed to the crossbeam (37). The heat exchange tube (34) is detachably clamped between two opposing long frames (36) or between the long frame (36) and the short frame (38). The long frame (36) and the short frame (38) are open at the end near the sealing plate (31). Between two short frames (38) in the same row and two short frames (38) in another row, a riser (39) is connected between two adjacent short frames (38).

3. A tube-finned high-efficiency heat exchanger as described in claim 2, characterized in that, One of the sealing plates (31) has a drain flange (32) and an inlet flange (33) fixedly extending through its outer wall. The drain flange (32) and the inlet flange (33) are respectively fixedly extended into the interior of a short frame (38) located on one side of it.

4. A tube-finned high-efficiency heat exchanger as described in claim 3, characterized in that, The long frame (36) is fixedly connected to a first partition (361) and a second partition (362). The long frame (36) is divided into two parts by the first partition (361) and the second partition (362). The first partition (361) has multiple inclined guide grooves (363) through it. The second partition (362) has a rotatable impeller (364) suspended at the center by a hanging plate (365).

5. A tube-finned high-efficiency heat exchanger as described in claim 4, characterized in that, The cleaning mechanism (6) includes a first rotating rod (61) fixedly passing through the center of the hanging plate (365). The first rotating rod (61) rotatably passes through the center of the first partition (361). A second rotating rod (62) is rotatably connected to each of the two inner sidewalls of the long frame (36) that are in a symmetrical relationship. A first connecting rod (63) is fixedly connected to the end of the second rotating rod (62) that is close to the first rotating rod (61). A second connecting rod (64) is hinged between the two first connecting rods (63). The second connecting rod (64) extends into the heat exchange tube (34) and is hinged to a traction rod (65). A plurality of scraping rings (66) for scraping and cleaning the inner wall of the heat exchange tube (34) are fixedly connected to the outer wall of the traction rod (65).

6. A tube-finned high-efficiency heat exchanger as described in claim 5, characterized in that, The tube-fin heat exchanger body (3) also includes a fastener (35) connecting the sealing plate (31) and the crossbeam (37). The fastener (35) includes a limiting seat (351) fixed to the side wall of the crossbeam (37) and a fixing plate (355) fixed to the side wall of the sealing plate (31). The limiting seat (351) is detachably embedded with an insert rod (352). The insert rod (352) is fixed with a threaded rod (353) on the outer wall. The fixing plate (355) is hinged with a swing frame (354) on the outer side. The threaded rod (353) is slidably sleeved on the inner side of the swing frame (354). The swing frame (354) and the threaded rod (353) are fixed together by bolt compression.

7. A tube-finned high-efficiency heat exchanger as described in claim 6, characterized in that, The cooling component (4) includes a water tank (49) disposed on the top of the base frame (1), a fan (43) is fixedly installed on the upper side of the water tank (49), a cross (42) is fixedly connected to the inner wall of the outer frame of the fan (43), a motor (41) for driving the fan on the fan (43) to rotate is fixedly installed on the outer wall of the cross (42), a water conveying mechanism (47) is disposed on one side of the water tank (49), a water inlet pipe (48) is fixedly connected between the water conveying mechanism (47) and the water tank (49), an atomizing pipe (46) connected to the inside of the water conveying mechanism (47) is disposed on one side of the water conveying mechanism (47), a vertical plate (45) is fixedly connected to the top of the base frame (1), and a transmission component (44) for driving the water conveying mechanism (47) is disposed between the vertical plate (45) and the fan (43). The transmission component (44) includes two horizontal shafts (444), one of which is rotatably connected to the outer wall of the vertical plate (45), and the other is fixed to the center of the fan on the blower (43). A swing rod (443) is fixedly connected to one end of each of the two horizontal shafts (444) that are close to each other. A connecting shaft (442) is fixedly connected between the two swing rods (443), and a transmission rod (441) is rotatably sleeved on the outer wall of the connecting shaft (442).

8. A tube-finned high-efficiency heat exchanger as described in claim 7, characterized in that, The water conveying mechanism (47) includes a water tank (471), with partitions (472) symmetrically fixed to the inner side of the water tank (471). Both sides of the partitions (472) are provided with connecting holes (473). A piston (474) is slidably sleeved between the two partitions (472) and the inner wall of the water tank (471). A push-pull rod (478) is fixed to the top of the piston (474), and the push-pull rod (478) is hinged to the transmission rod (441). Each of the connecting holes (473) is provided with a one-way valve assembly on one side. The one-way valve assembly includes a sealing cap (475), a rod (476), and a return spring (477). The rod (476) is fixed to the outer wall of the sealing cap (475) and slides through the partition (472). The return spring (477) is sleeved on the outside of the rod (476), and both ends of the rod (476) are respectively connected to one end of the rod (476) and the outer wall of the partition (472).

9. A tube-finned high-efficiency heat exchanger as described in claim 8, characterized in that, The positioning component (2) includes a cavity (21) opened at the top of the base frame (1). Two bases (24) are slidably sleeved inside the cavity (21). The two bases (24) are respectively fixed to the short frame (38) and the long frame (36) located at the bottom. A bidirectional lead screw (23) and a positioning rod (25) are rotatably connected inside the cavity (21). The bidirectional lead screw (23) is threaded through the cavity (21). The positioning rod (25) slides through the cavity (21). A turntable (22) is fixedly connected to one end of the bidirectional lead screw (23).

10. A method for producing a tube-finned high-efficiency heat exchanger, applied to the tube-finned high-efficiency heat exchanger according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Pre-assembly of the main frame Using the positioning component (2), adjust the distance between the two bases (24) on the base frame (1), place the matrix distribution heat exchange tube (34) with finned assembly (5) between the two sealing plates (31), and by rotating the bidirectional screw (23) of the positioning component (2), bring the base (24) with long frame (36) and short frame (38) closer to each other, insert the two ends of the heat exchange tube (34) into the corresponding frame and achieve initial positioning and sealing; Step 2: Fixing the sealing plate (31) to the internal mechanism Secure the sealing plate (31) to the crossbeam (37) with fasteners (35), tighten the bolts on the threaded rod (353) so that the insert rod (352) is tightly locked in the limiting seat (351), ensuring that the sealing plate (31) and the crossbeam (37) fit tightly together, thereby sealing the ends of the long frame (36) and the short frame (38); Step 3: Integration of Cooling and Atomization Systems Connect the water delivery mechanism (47) to the water storage tank (49) through the water inlet pipe (48), align the atomizing pipe (46) with one side of the tube-fin heat exchanger body (3), and install the transmission component (44) to ensure that the rotation of the fan (43) can be converted into the reciprocating motion of the piston (474) in the water delivery mechanism (47) through the horizontal shaft (444), the swing rod (443), the connecting shaft (442) and the transmission rod (441); Step 4: Overall linkage test When the power is turned on, the motor (41) is started to drive the fan (43) and the water supply mechanism (47). The fan (43) delivers air and the water mist sprayed by the atomizing pipe (46) works together to cover the surface of the heat exchange tube (34) and the fin assembly (5). At the same time, the medium is introduced and the cleaning mechanism (6) cleans the tube wall under the drive of the medium flow.

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