An assembled finned heat exchanger

Abstract

The application relates to the technical field of heat exchangers, in particular to an assembled finned heat exchanger which comprises a first placing frame, the first placing frame is slidably connected with a second placing frame, the first placing frame is rotationally connected with a plurality of straight pipes, a plurality of bent pipes matched with the straight pipes are fixedly arranged on the second placing frame, the straight pipes are connected with the corresponding bent pipes through quick-release mechanisms, the outer wall of the first sleeve is arrayed with a plurality of first locking blocks, the outer wall of each first locking block is provided with a first threaded portion, the inner wall of each second sleeve is arrayed with a plurality of second locking blocks, and the inner wall of each second locking block is provided with a second threaded portion. The application can realize the convenient disassembly, synchronous rotation and connection locking of the straight pipes and the bent pipes of the heat exchange pipes through the slidable placing frame, the quick-release mechanism and the transmission self-locking structure, and the maintenance convenience and the operation stability of the heat exchanger are improved.

Description

Technical Field

[0001] This application relates to the technical field of heat exchangers, and in particular to an assembled finned heat exchanger. Background Technology

[0002] Finned heat exchangers are highly efficient heat exchange devices widely used in refrigeration, HVAC, chemical, and many other fields. During actual use, the heat exchange tubes are prone to fouling and corrosion due to the flow of the medium, which severely affects the heat exchange efficiency and service life. To ensure the normal and efficient operation of the heat exchanger, regular maintenance and cleaning of the heat exchange tubes are necessary. However, in existing finned heat exchangers, the straight and bent tubes are usually connected by welding or integral molding. This connection method requires disassembling the entire heat exchanger for maintenance and cleaning, which is complex, cumbersome, and consumes a lot of manpower and time, greatly limiting the convenience of maintenance and the economic efficiency of using finned heat exchangers.

[0003] A search revealed Chinese Patent Publication No. CN222124095U, which discloses a novel hydrophilic aluminum foil finned heat exchanger. The heat exchanger includes a heat exchanger body, a mounting bracket disposed on the top of the heat exchanger body, and a mounting plate disposed inside the mounting bracket, wherein the heat exchanger body is fixedly connected to the mounting plate. The mounting components include an extension assembly disposed inside the mounting plate, a fixing assembly disposed inside the mounting bracket, and a pull rod assembly that cooperates with the fixing assembly.

[0004] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks: in the prior art, the straight and bent heat exchange tubes are connected by an integral molding method, leading to difficulties in maintenance and cleaning. This application aims to solve the technical problem of difficult maintenance and cleaning of finned heat exchangers caused by the welding or integral molding of the straight and bent heat exchange tubes. It achieves the technical effects of convenient maintenance and cleaning, improved connection stability, and operational ease by setting up a sliding first and second placement frame, a quick-release mechanism, and a transmission system composed of a rotating handwheel, worm gear, worm wheel, gear, rack, etc. Utility Model Content

[0005] To address the technical problem of difficult maintenance and cleaning of finned heat exchangers in the prior art due to the welding or integral molding of straight and bent heat exchange tubes, this application provides an assembled finned heat exchanger.

[0006] This application provides an assembled finned heat exchanger, employing the following technical solution: a first placement frame is slidably connected to a second placement frame; the first placement frame is rotatably connected to multiple straight tubes; multiple bent tubes adapted to the straight tubes are fixedly arranged on the second placement frame; the straight tubes and corresponding bent tubes are connected by a quick-release mechanism; the quick-release mechanism includes a first sleeve disposed at the end of the bent tube and a second sleeve disposed at the end of the straight tube; multiple first locking blocks are arrayed on the outer wall of the first sleeve, and each first locking block has a first threaded portion on its outer wall; multiple second locking blocks are arrayed on the inner wall of each second sleeve, and each second locking block has a second threaded portion on its inner wall.

[0007] Optionally, a first ring gear is coaxially fixed on each straight tube; a first rack adapted to the first ring gear is slidably connected on the first placement frame.

[0008] Optionally, a second gear that meshes with the first rack is rotatably connected to the first placement frame.

[0009] Optionally, a worm gear is coaxially fixedly mounted on one end face of the second gear.

[0010] Optionally, a worm gear that meshes with a worm wheel is rotatably connected to the first mounting frame.

[0011] Optionally, a rotating handwheel is coaxially fixed at one end of the worm gear.

[0012] Optionally, the first placement rack is provided with a first sliding block, and the second placement rack is provided with a first sliding groove that is adapted to the first sliding block.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model achieves a detachable connection between straight and bent pipes through a quick-release mechanism (first sleeve, second sleeve, first locking block, second locking block, first threaded part, second threaded part). During maintenance, it is not necessary to disassemble the entire heat exchanger; simply rotate the handwheel in the opposite direction to release the threaded connection, slide the second and first placement brackets apart, and the straight and bent pipes can be separated for internal cleaning. This simple operation reduces labor and time costs, improving maintenance convenience and economic efficiency.

[0015] 2. The rotating handwheel of this utility model, through a transmission structure of worm gear, worm wheel, second gear, first rack, and first ring gear, can drive multiple straight tubes to rotate synchronously, facilitating the rapid batch connection or disassembly of straight and bent tubes. Simultaneously, the self-locking characteristics of the worm wheel and worm gear prevent accidental rotation and unlocking of the straight tubes after threaded connection, ensuring the stability of the overall heat exchange tube connection and guaranteeing the normal operation of the heat exchanger. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the structure of the first ring gear in the embodiments of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the first sleeve in the embodiments of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the second sleeve in the embodiments of this application.

[0020] Reference numerals in the attached drawings: 1. First placement frame; 2. Second placement frame; 3. Straight pipe; 4. Bend; 5. First sleeve; 6. Second sleeve; 7. First locking block; 8. First threaded part; 9. Second locking block; 10. Second threaded part; 11. First ring gear; 12. First rack; 13. Second gear; 14. Worm gear; 15. Worm; 16. Rotating handwheel; 17. Sealing ring. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] This application discloses an assembled finned heat exchanger. For example... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a first placement frame 1, and a second placement frame 2 is slidably connected to the first placement frame 1; multiple straight pipes 3 are rotatably connected to the first placement frame 1; multiple bent pipes 4 adapted to the straight pipes 3 are fixedly installed on the second placement frame 2; the straight pipes 3 and the corresponding bent pipes 4 are connected by a quick-release mechanism; the quick-release mechanism includes a first sleeve 5 provided at the end of the bent pipe 4 and a second sleeve 6 provided at the end of the straight pipe 3; multiple first locking blocks 7 are arrayed on the outer wall of the first sleeve 5, and each first locking block 7 has a first threaded portion 8 on its outer wall; multiple second locking blocks 9 are arrayed on the inner wall of each second sleeve 6, and each second locking block 9 has a second threaded portion 10 on its inner wall;

[0023] In this embodiment, the second placement frame 2 carries multiple bent tubes 4 and slides towards the first placement frame 1, so that multiple first locking blocks 7 on the first sleeve 5 of the bent tube 4 are inserted into the space between the second locking blocks 9 on the second sleeve 6 of the corresponding straight tube 3. By rotating the straight tube 3, the second threaded part 10 is threadedly connected to the first threaded part 8, thereby connecting the straight tube 3 with the corresponding bent tube 4. When all the straight tubes 3 are connected with the corresponding bent tubes 4, the heat exchange tube is formed as a whole.

[0024] Please see Figure 2 Each straight tube 3 is coaxially fixed with a first ring gear 11; a first rack 12 adapted to the first ring gear 11 is slidably connected to the first placement frame 1; a second gear 13 meshing with the first rack 12 is rotatably connected to the first placement frame 1.

[0025] In this embodiment, the rotation of the second gear 13 drives the rotation of multiple first ring gears 11 through the first rack 12, thereby causing the first ring gears 11 to drive the corresponding straight tube 3 to rotate.

[0026] Please see Figure 1 and Figure 2 A worm gear 14 is coaxially fixedly mounted on one end face of the second gear 13; a worm 15 meshing with the worm gear 14 is rotatably connected to the first mounting frame 1; a rotating handwheel 16 is coaxially fixedly mounted on one end of the worm 15.

[0027] In this embodiment, the operator rotates the handwheel 16 to engage the worm gear 15 and drive the worm wheel 14 to rotate, thereby causing the second gear 13 to drive multiple straight tubes 3 to rotate through the first rack 12. The self-locking characteristics of the worm wheel 14 and the worm gear 15 enable the second locking block 9 to form a self-locking mechanism after being threaded to the first locking block 7 through the second threaded part 10 and the first threaded part 8, thus preventing the straight tubes 3 from being accidentally rotated and causing unlocking.

[0028] Please see Figure 1 The first placement rack 1 is provided with a first sliding block, and the second placement rack 2 is provided with a first sliding groove that is adapted to the first sliding block;

[0029] In this embodiment, the first placement rack 1 and the second placement rack 2 are slidably connected by a first sliding block and a first sliding groove;

[0030] Please see Figure 3 The end face of the first sleeve 5 is provided with a placement groove, and a sealing ring 17 is provided in the placement groove.

[0031] The implementation principle of an assembled finned heat exchanger according to an embodiment of this application is as follows:

[0032] When heat exchange tubes need to be assembled, the first placement frame 1 and the second placement frame 2 are slidably connected through the first sliding block and the first sliding groove, providing a basic sliding structure for the subsequent docking of components; the second placement frame 2 is pushed, causing it to slide towards the first placement frame 1 carrying multiple bent tubes 4, so that multiple first locking blocks 7 on the first sleeve 5 at the end of the bent tube 4 are precisely inserted into the space between the second locking blocks 9 on the second sleeve 6 at the end of the corresponding straight tube 3, completing the initial alignment; the operator turns the rotating handwheel 16, driving the worm gear 15 to rotate, the worm gear 15 The worm gear 14 meshes with the worm wheel 14, driving the worm wheel 14 to rotate; the second gear 13, which is coaxially fixedly connected to the worm wheel 14, rotates accordingly. The second gear 13 meshes with the first rack 12, causing the first rack 12 to slide; the first rack 12 is adapted to the first ring gear 11, thereby driving multiple straight tubes 3 to rotate synchronously, so that the second threaded part 10 of the second locking block 9 on the inner wall of the second sleeve 6 meshes with the first threaded part 8 of the first locking block 7 on the outer wall of the first sleeve 5, and the straight tube 3 is fixed to the corresponding bent tube 4 through the threaded connection, thus forming the whole heat exchange tube;

[0033] The worm gear 14 and worm 15 have a self-locking characteristic. When the second locking block 9 is connected to the first locking block 7 by threads, this self-locking characteristic can prevent the straight tube 3 from rotating accidentally, prevent the quick-release mechanism from unlocking, and ensure the stability of the heat exchange tube connection.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An assembled finned heat exchanger, comprising a first mounting frame, characterized in that: The first placement frame is slidably connected to the second placement frame; the first placement frame is rotatably connected to multiple straight pipes; the second placement frame is fixedly provided with multiple bent pipes adapted to the straight pipes; the straight pipes and corresponding bent pipes are connected by a quick-release mechanism; the quick-release mechanism includes a first sleeve provided at the end of the bent pipe and a second sleeve provided at the end of the straight pipe; the outer wall of the first sleeve is provided with multiple first locking blocks in an array, and the outer wall of each first locking block is provided with a first threaded portion; the inner wall of each second sleeve is provided with multiple second locking blocks in an array, and the inner wall of each second locking block is provided with a second threaded portion.

2. The assembled finned heat exchanger according to claim 1, characterized in that: Each straight tube is coaxially fixed with a first ring gear; the first placement frame is slidably connected with a first rack that is adapted to the first ring gear.

3. The assembled finned heat exchanger according to claim 1, characterized in that: A second gear that meshes with the first rack is rotatably connected to the first placement frame.

4. The assembled finned heat exchanger according to claim 3, characterized in that: A worm gear is coaxially fixed to one end face of the second gear.

5. The assembled finned heat exchanger according to claim 1, characterized in that: The first mounting frame is rotatably connected to a worm gear that meshes with a worm wheel.

6. The assembled finned heat exchanger according to claim 5, characterized in that: A rotating handwheel is coaxially fixed at one end of the worm gear.

7. The assembled finned heat exchanger according to claim 1, characterized in that: The first placement rack is provided with a first sliding block, and the second placement rack is provided with a first sliding groove that is adapted to the first sliding block.

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