Finned tube heat exchanger
By introducing airflow acceleration and guide components into the fin tube heat exchanger, the problem of uneven temperature on the fin surface is solved, and more efficient heat exchange and dust prevention effects are achieved.
Patent Information
- Application Number
- CN202422457877.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In existing fin tube heat exchangers, the fixed air flow direction leads to uneven temperature on the surface of the fin, affecting the heat exchange effect.
The airflow acceleration assembly and the airflow guide assembly are used to achieve continuous changes in the airflow direction through the combination of the air guide cover, fan barrel, fan blade and flow guide plate, and are equipped with cleaning components to prevent clogging.
It improves heat exchange efficiency, ensures temperature uniformity of the fin surface, avoids local overheating or supercooling, and keeps the airflow channel clean.
Smart Images
Figure CN223192159U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of heat exchangers, in particular to a finned tube heat exchanger. Background Art
[0002] Finned tubes are heat exchange components. Fins are typically added to the surface of the tube to increase its external (or internal) surface area, thereby improving heat transfer efficiency. A heat exchanger (also known as a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction.
[0003] In order to increase the heat exchange efficiency, some fin-tube heat exchangers in the prior art generally install a fan on one side to blow the fin tubes, thereby accelerating the air flow rate to achieve efficient heat exchange. However, the airflow direction of the fan is generally fixed, and the fin tubes are generally multi-layered structures with blocked parts. If the airflow direction remains unchanged, there will be limitations, resulting in uneven temperature on the fin surface, and local temperatures will be too high or too low, affecting the heat exchange effect.
[0004] Therefore, it is necessary to propose a fin-tube heat exchanger to solve the above problems. Utility Model Content
[0005] The main purpose of the utility model is to provide a fin-tube heat exchanger that can effectively solve the problems in the background technology.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A fin-tube heat exchanger, comprising a shell, a copper tube arranged on the inner side of the shell, and fins arranged on the outer side of the copper tube, an airflow acceleration assembly is provided on one side of the shell, the airflow acceleration assembly includes an air guide cover arranged on one side of the shell and connected to the shell, the air guide cover is connected to a fan cylinder at one end away from the shell, a second rotating shaft is rotatably connected to the inner side of the fan cylinder, a fan blade is provided at one end of the second rotating shaft, a motor is provided on the outer side of the fan cylinder, an output shaft is provided at the output end of the motor, corresponding synchronous wheels are fixedly provided on the output shaft and the second rotating shaft, and a synchronous belt is provided on the two synchronous wheels;
[0008] The transmission gear of the present invention is a gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a
[0009] Preferably, a ventilation grille is provided on a side of the housing away from the air guide cover.
[0010] Preferably, the guide plates are evenly arranged along the height direction of the shell.
[0011] Preferably, a linear guide rail is vertically provided on the inner side of the transmission box, and the rack is movably connected to the linear guide rail.
[0012] Preferably, a linear guide rail corresponding to the lifting arm is vertically provided at one end of the fan cylinder away from the wind guide cover, and the lifting arm is movably connected to the linear guide rail.
[0013] Preferably, an opening is provided on the side surface of the transmission box corresponding to the connecting arm, and one end of the connecting arm extends to the inside of the transmission box through the opening.
[0014] Preferably, a dustproof net corresponding to the lifting arm is provided at one end of the fan cylinder away from the air guide cover.
[0015] Preferably, a cleaning assembly is provided at the end of the fan cylinder away from the air guide cover, and the cleaning assembly includes a first movable plate movably connected to the top of the lifting arm, and there are two first movable plates, the upper end of the first movable plate is movably connected to the second movable plate, and the upper end of the second movable plate is movably connected to the upper end of the dustproof net, and the first movable plate and the second movable plate are both provided with brush strips in contact with the dustproof net on one side close to the dustproof net.
[0016] Compared with the prior art, the present invention provides a fin-tube heat exchanger with the following advantages:
[0017] 1. The fin-tube heat exchanger can accelerate the flow of air outside the fins by means of the airflow acceleration component and the airflow guide component, thereby improving the heat exchange efficiency. Moreover, the direction of the airflow can be continuously changed, so that the temperature on the fins is relatively uniform, which facilitates heat exchange.
[0018] 2. The fin-tube heat exchanger is configured such that the cleaning component is linked with the airflow acceleration component and the airflow guide component, so that the dust screen can be cleaned during the airflow acceleration and airflow guide, thereby avoiding blockage that affects the airflow. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural diagram of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the utility model from another perspective;
[0021] Figure 3 This is a schematic diagram of the structure of the utility model in a disassembled state;
[0022] Figure 4 This is a schematic diagram of the structure of the utility model with the housing, air guide cover, fan cylinder and guide plate disassembled;
[0023] Figure 5 It is a structural schematic diagram of the guide plate of the utility model;
[0024] Figure 6 This is a structural diagram of the utility model's fan cylinder away from the side of the air guide cover;
[0025] Figure 7 This is a structural diagram of the utility model with the fan cylinder, dust screen and fan blades disassembled;
[0026] Figure 8 This utility model Figure 7 Schematic diagram of the structure from another perspective.
[0027] In the figure: 1. Outer casing; 2. Ventilation grille; 3. Copper tube; 4. Fan cylinder; 5. Air guide cover; 6. Connecting arm; 7. Lifting arm; 8. Transmission box; 9. Fin; 10. Guide plate; 11. Rack; 12. First rotating shaft; 13. Gear; 14. Dust screen; 15. Turntable; 16. Motor; 17. Fan blades; 18. Second rotating shaft; 19. Output shaft; 20. Synchronous belt; 21. Synchronous pulley; 22. First movable plate; 23. Brush strip; 24. Guide groove; 25. Cam; 26. Second movable plate. DETAILED DESCRIPTION
[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0029] like Figure 1-8As shown, a fin-tube heat exchanger includes a shell 1, a copper tube 3 arranged on the inner side of the shell 1, and a fin 9 arranged on the outer side of the copper tube 3. An airflow acceleration component is provided on one side of the shell 1, and the airflow acceleration component includes an air guide cover 5 arranged on one side of the shell 1 and connected to the shell 1. A ventilation grille 2 is provided on the side of the shell 1 away from the air guide cover 5. The end of the air guide cover 5 away from the shell 1 is connected to a fan cylinder 4. The inner side of the fan cylinder 4 is rotatably connected to a second rotating shaft 18, and one end of the second rotating shaft 18 is provided with a fan blade 17. A motor 16 is provided on the outer side of the fan cylinder 4, and an output shaft 19 is provided at the output end of the motor 16. Corresponding synchronous wheels 21 are fixedly provided on the output shaft 19 and the second rotating shaft 18, and a synchronous belt 20 is provided on the two synchronous wheels 21.
[0030] The air flow guide assembly further includes a first rotating shaft 12 which is arranged on the inner side of the housing 1 near one end of the air guide cover 5. The first rotating shaft 12 is evenly arranged along the height direction of the housing 1. A guide plate 10 is fixedly arranged on the first rotating shaft 12. A transmission box 8 is provided on the outer side of the housing 1 corresponding to the first rotating shaft 12. The end of the first rotating shaft 12 extends to the inner side of the transmission box 8 and is provided with a gear 13. One end of the inner side of the transmission box 8 is vertically movably connected to a rack 11 which meshes with the gear 13. Specifically, a linear guide is vertically provided on the inner side of the transmission box 8. The rack 11 is movably connected to the linear guide. A turntable 15 is fixedly provided on the end of the output shaft 19 away from the motor 16. The turntable 15 is away from the outer periphery of one side of the output shaft 19. A cam 25 is provided, and the side of the fan cylinder 4 away from the wind guide cover 5 is vertically movably connected with a lifting arm 7 corresponding to the turntable 15. Specifically, a linear guide rail corresponding to the lifting arm 7 is vertically provided at one end of the fan cylinder 4 away from the wind guide cover 5, and the lifting arm 7 is movably connected to the linear guide rail. A guide groove 24 corresponding to the cam 25 is provided in the middle of the lifting arm 7, and the cam 25 is movably connected to the inner side of the guide groove 24. The end of the lifting arm 7 is fixedly connected with a connecting arm 6 corresponding to the transmission box 8, and the end of the connecting arm 6 away from the lifting arm 7 extends to the inner side of the connecting arm 6 and is fixedly connected to the rack 11. Specifically, an opening is provided on the side of the transmission box 8 corresponding to the connecting arm 6, and one end of the connecting arm 6 extends to the inner side of the transmission box 8 through the opening.
[0031] In order to filter the incoming air, a dustproof net 14 corresponding to the lifting arm 7 is provided at one end of the fan cylinder 4 away from the air guide cover 5 .
[0032] Furthermore, a cleaning assembly is provided at one end of the fan cylinder 4 away from the air guide cover 5, and the cleaning assembly includes a first movable plate 22 movably connected to the top of the lifting arm 7, and there are two first movable plates 22. The upper end of the first movable plate 22 is movably connected to the second movable plate 26, and the upper end of the second movable plate 26 is movably connected to the upper end of the dustproof net 14. The first movable plate 22 and the second movable plate 26 are both provided with a brush strip 23 in contact with the dustproof net 14 on one side close to the dustproof net 14.
[0033] When in use, the fluid enters through the inlet of the copper tube 3, flows through the inner side of the fin 9, and can exchange heat with the fin 9. The fin 9 exchanges heat with the air, and then the fluid is discharged through the outlet of the copper tube 3. During this period, the motor 16 drives the synchronous belt 20 to operate through the output shaft 19, and the synchronous belt 20 drives the second rotating shaft 18 to rotate through the synchronous wheel 21. The second rotating shaft 18 drives the fan blades 17 to rotate, and then the fan blades 17 blow the airflow in the direction of the fin 9 to accelerate the flow of air. When the output shaft 19 rotates, it will drive the turntable 15 to rotate. The turntable 15 drives the lifting arm 7 to be set back and forth through the cooperation of the convex shaft 25 and the guide groove 24. The lifting arm 7 drives the rack 11 to move up and down through the connecting arm 6, and the rack 11 drives the guide plate 10 to flip back and forth and change the angle through the gear 13, so that the direction of the airflow changes continuously, and the copper tube 3 can be purged in different directions, which is beneficial to the uniform temperature on the fin 9 and facilitates heat exchange. Moreover, when the lifting arm 7 is raised and lowered, the first movable plate 22 and the second movable plate 26 will be driven to change the angle, and then the first movable plate 22 and the second movable plate 26 will clean the outer surface of the dustproof net 14 through the brush strip 23, thereby avoiding the clogging of the dustproof net 14. The device has high structural synchronization, compact structure and easy use.
[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A fin-tube heat exchanger comprising a housing (1), a copper tube (3) arranged inside the housing (1), and fins (9) arranged outside the copper tube (3), characterized in that: An airflow acceleration component is provided on one side of the housing (1), and the airflow acceleration component includes an air guide cover (5) provided on one side of the housing (1) and in communication with the housing (1); an end of the air guide cover (5) away from the housing (1) is in communication with a fan cylinder (4); a second rotating shaft (18) is rotatably connected to the inner side of the fan cylinder (4); a fan blade (17) is provided at one end of the second rotating shaft (18); a motor (16) is provided on the outer side of the fan cylinder (4); an output shaft (19) is provided at the output end of the motor (16); corresponding synchronous wheels (21) are fixedly provided on the output shaft (19) and the second rotating shaft (18); and a synchronous belt (20) is provided on both the synchronous wheels (21); The air flow guide assembly further comprises a first rotating shaft (12) arranged on the inner side of the housing (1) near one end of the air guide cover (5), a guide plate (10) being fixedly arranged on the first rotating shaft (12), a transmission box (8) being arranged on the outer side of the housing (1) at a position corresponding to the first rotating shaft (12), an end of the first rotating shaft (12) extending to the inner side of the transmission box (8) and being provided with a gear (13), a rack (11) meshing with the gear (13) being vertically movably connected to one end of the inner side of the transmission box (8), and a turntable (10) being fixedly arranged on the end of the output shaft (19) away from the motor (16). 15), a convex shaft (25) is provided on the periphery of one side of the turntable (15) away from the output shaft (19), a lifting arm (7) corresponding to the turntable (15) is vertically movably connected to the side of the fan cylinder (4) away from the wind guide cover (5), a guide groove (24) corresponding to the convex shaft (25) is provided in the middle of the lifting arm (7), and the convex shaft (25) is movably connected to the inner side of the guide groove (24), and the end of the lifting arm (7) is fixedly connected to the connecting arm (6) corresponding to the transmission box (8), and the end of the connecting arm (6) away from the lifting arm (7) extends to the inner side of the connecting arm (6) and is fixedly connected to the rack (11).
2. The fin-tube heat exchanger according to claim 1, characterized in that: A ventilation grille (2) is provided on a side of the housing (1) away from the air guide cover (5).
3. The fin-tube heat exchanger according to claim 1, characterized in that: The guide plates (10) are evenly arranged along the height direction of the housing (1).
4. The fin-tube heat exchanger according to claim 1, characterized in that: A linear guide rail is vertically arranged on the inner side of the transmission box (8), and the rack (11) is movably connected to the linear guide rail.
5. The fin-tube heat exchanger according to claim 1, characterized in that: A linear guide rail corresponding to the lifting arm (7) is vertically provided at one end of the fan cylinder (4) away from the wind guide cover (5), and the lifting arm (7) is movably connected to the linear guide rail.
6. The fin-tube heat exchanger according to claim 1, characterized in that: An opening is provided at a position corresponding to the side of the transmission box (8) and the connecting arm (6), and one end of the connecting arm (6) extends to the inside of the transmission box (8) through the opening.
7. The fin-tube heat exchanger according to claim 1, characterized in that: An end of the fan cylinder (4) away from the air guide cover (5) is provided with a dustproof net (14) corresponding to the lifting arm (7).
8. The fin-tube heat exchanger according to claim 7, characterized in that: A cleaning assembly is provided at one end of the fan cylinder (4) away from the air guide cover (5), and the cleaning assembly includes a first movable plate (22) movably connected to the top of the lifting arm (7), and the number of the first movable plates (22) is two, the upper end of the first movable plate (22) is movably connected to the second movable plate (26), and the upper end of the second movable plate (26) is movably connected to the upper end of the dustproof net (14), and the first movable plate (22) and the second movable plate (26) are both provided with a brush strip (23) in contact with the dustproof net (14) on one side close to the dustproof net (14).