Pipe penetrating auxiliary device for heat exchanger pipe bundle

Abstract

The utility model relates to the technical field of heat exchanger tube bundle penetrating, and discloses a heat exchanger tube bundle penetrating auxiliary device which comprises a workbench, supporting legs are fixedly connected to the bottom of the workbench, a first mounting plate is arranged on the upper surface of the workbench, a fixing rod is fixedly connected to the interior of the first mounting plate, and a sliding sleeve is slidably connected to the side wall of the fixing rod. A first fixing plate is fixedly connected to the lower surface of the sliding sleeve, a first connecting block is fixedly connected to the upper surface of the first fixing plate, a clamping plate is fixedly connected to one side wall of the connecting block, a rack is fixedly connected to the interior of the first connecting block, a cylindrical sleeve is fixedly connected to the upper surface of the first mounting plate, and a gear is rotationally connected to the interior of the cylindrical sleeve. According to the tube bundle clamping and positioning device, the hydraulic rod is started to pull the connecting plate to slide, the sliding sleeve drives the first fixing plate to slide, and the rack drives the gear to rotate, so that the tube bundle is clamped by the clamping plate, the tube bundle clamping and positioning effect is achieved, and the practicability of the device is improved through the structure.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger tube bundle insertion technology, and in particular to an auxiliary device for heat exchanger tube bundle insertion. Background Technology

[0002] The heat exchanger tube bundle is the core component inside a heat exchanger used for heat transfer. It typically consists of a series of tubes, which can be straight, curved, or spiral, and they can be arranged in a specific pattern to facilitate efficient heat exchange between two fluids at different temperatures. The design and manufacture of the tube bundle are crucial to the overall performance of the heat exchanger. A tube-threading auxiliary device is a mechanical device used to simplify and expedite the tube-threading process.

[0003] Traditional heat exchanger tube bundle insertion auxiliary devices consist of a workbench, a placement platform, and other components. By placing the tube sleeve on the placement platform, workers align and position the tube bundle with the tube sleeve, and then using an overhead crane, the tube bundle is inserted into the sleeve. This device is widely used in industries such as petrochemicals, power, and food processing, and is particularly important for maintenance and repair work.

[0004] Traditional heat exchanger tube bundle threading auxiliary devices rely on manual handling and docking with the tube sleeve during the threading process, which can lead to inaccurate positioning and damage to the tube bundle and tube sleeve. To address this issue, a new heat exchanger tube bundle threading auxiliary device is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a heat exchanger tube bundle threading auxiliary device, which aims to improve the problem in the prior art where manual handling and tube sleeve docking during tube threading leads to inaccurate positioning and thus easily causes damage to the tube bundle and tube sleeve.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heat exchanger tube bundle insertion auxiliary device includes a workbench with supporting legs fixedly connected to its bottom. An mounting plate is provided on the upper surface of the workbench. A fixing rod is fixedly connected inside the mounting plate, and a sliding sleeve is slidably connected to the side wall of the fixing rod. A fixing plate is fixedly connected to the lower surface of the sliding sleeve. A connecting block is fixedly connected to the upper surface of the fixing plate, and a clamping plate is fixedly connected to one side wall of the connecting block. A rack is fixedly connected inside the connecting block. A cylindrical sleeve is fixedly connected to the upper surface of the mounting plate, and a gear is rotatably connected inside the cylindrical sleeve. A hydraulic rod is fixedly connected to the inside of the mounting plate, and a connecting plate is fixedly connected to the output end of the hydraulic rod. The upper surface of the connecting plate is fixedly connected to the lower surface of the left side of the fixing plate. An auxiliary component for placing the tube bundle is provided on the upper surface of the mounting plate.

[0008] As a further description of the above technical solution:

[0009] A fixing block is fixedly connected to the upper surface of the worktable, and a slider is slidably connected to the side wall of the fixing block. A placement assembly is provided on the upper surface of the worktable for placing the heat exchanger shell.

[0010] As a further description of the above technical solution:

[0011] The auxiliary component includes a second fixing plate, the lower surface of which is fixedly connected to the upper surface of the first mounting plate, and a first placement platform is fixedly connected to the upper surface of the second fixing plate.

[0012] As a further description of the above technical solution:

[0013] The placement assembly includes a second mounting plate, the lower surface of which is fixedly connected to the upper surface of the fixing block, and a second placement platform is fixedly connected to the upper surface of the second mounting plate.

[0014] As a further description of the above technical solution:

[0015] The gear meshes with the rack, and the side wall of the connecting plate is slidably connected inside the mounting plate.

[0016] As a further description of the above technical solution:

[0017] A motor is fixedly connected to the lower surface of the workbench, and a sprocket is fixedly connected to the output end of the motor;

[0018] As a further description of the above technical solution:

[0019] The sprocket sidewall is rotatably connected to the inside of the workbench, a chain is provided between the sprockets, and a connecting block two is fixedly connected to the chain sidewall;

[0020] As a further description of the above technical solution:

[0021] The upper surface of the slider is fixedly connected to the lower surface of the mounting plate, and the two side walls of the connecting block are fixedly connected to the lower surface of the mounting plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by activating the hydraulic rod, the connecting plate is pulled to slide, causing the sliding sleeve to drive the fixed plate to slide, which in turn causes the rack to drive the gear to rotate, causing the rack on the other side to drive the fixed plate on the other side to slide, thereby clamping the tube bundle with the clamping plate, achieving the effect of clamping and positioning the tube bundle. This solves the problem that some heat exchanger tube bundle insertion auxiliary devices rely on manual handling and tube sleeve docking during tube insertion, resulting in inaccurate positioning and easy damage to the tube bundle and tube sleeve. The above structure improves the practicality of the equipment.

[0024] 2. In this utility model, by starting the motor to drive the sprocket to rotate, the chain drives the connecting block two to move, and the slider drives the mounting plate one to move, thereby achieving the effect of moving the tube bundle. The above structure makes it easier to insert or remove the tube bundle from the heat exchanger shell, reducing the labor intensity of the operators. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a heat exchanger tube bundle tube insertion auxiliary device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the placement platform for a heat exchanger tube bundle tube insertion auxiliary device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the mounting plate of a heat exchanger tube bundle tube insertion auxiliary device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the workbench of the heat exchanger tube bundle insertion auxiliary device proposed in this utility model.

[0029] Legend:

[0030] 1. Workbench; 2. Support leg; 3. Mounting plate one; 4. Fixing rod; 5. Fixing plate one; 6. Sliding sleeve; 7. Connecting block one; 8. Clamping plate; 9. Rack; 10. Cylindrical sleeve; 11. Gear; 12. Hydraulic rod; 13. Connecting plate; 14. Fixing plate two; 15. Placement platform one; 16. Mounting plate two; 17. Placement platform two; 18. Motor; 19. Sprocket; 20. Chain; 21. Fixing block; 22. Slider; 23. Connecting block two. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a heat exchanger tube bundle insertion auxiliary device, including a workbench 1, a support leg 2 fixedly connected to the bottom of the workbench 1, an mounting plate 3 on the upper surface of the workbench 1, a fixing rod 4 fixedly connected inside the mounting plate 3, a sliding sleeve 6 slidably connected to the side wall of the fixing rod 4, a fixing plate 5 fixedly connected to the lower surface of the sliding sleeve 6, a connecting block 7 fixedly connected to the upper surface of the fixing plate 5, a clamping plate 8 fixedly connected to the side wall of the connecting block 7 for clamping and fixing the tube bundle, a rack 9 fixedly connected inside the connecting block 7, and a cylindrical sleeve 10 fixedly connected to the upper surface of the mounting plate 3. Gear 11 is rotatably connected inside sleeve 10. Hydraulic rod 12 is fixedly connected inside mounting plate 3. Connecting plate 13 is fixedly connected to the output end of hydraulic rod 12. The upper surface of connecting plate 13 is fixedly connected to the lower surface of left fixed plate 5. An auxiliary component is provided on the upper surface of mounting plate 3 for placing tube bundle. The auxiliary component includes fixed plate 14. The lower surface of fixed plate 14 is fixedly connected to the upper surface of mounting plate 3. Placement platform 15 is fixedly connected to the upper surface of fixed plate 14 for placing tube bundle. Gear 11 meshes with rack 9. The side wall of connecting plate 13 is slidably connected inside mounting plate 3.

[0033] During the tube insertion process, the operator must place the tube bundle stably on the placement platform 15, ensuring accurate and unbiased positioning. The operator then activates the hydraulic rod 12, causing it to retract. As the hydraulic rod 12 retracts, it applies tension through the connecting plate 13, causing it to move. This movement of the connecting plate 13 drives the sliding sleeve 6 to slide on the fixed rod 4, ensuring stability and accuracy during movement. As the sliding sleeve 6 slides, the fixed plate 5 moves accordingly. When the fixed plate 5 moves, it... One side of the rack 9 begins to slide, and the movement of the rack 9 will mesh with the gear 11, causing the gear 11 to start rotating under the push of the rack 9. This rotation is transmitted to the other side of the fixed plate 5, causing it to move accordingly. The synchronous movement of the two fixed plates 5 will generate a clamping force on the tube bundle through the clamping plate 8, causing the clamping plate 8 to slowly approach the tube bundle until the tube bundle is positioned and firmly clamped, providing stable support for subsequent tube threading operations. Through the clamping and positioning functions, the efficiency and accuracy of the tube threading process can be significantly improved.

[0034] Reference Figure 1 and Figure 4A fixing block 21 is fixedly connected to the upper surface of the workbench 1. A slider 22 is slidably connected to the side wall of the fixing block 21. The slider 22 is used to assist in sliding the mounting plate 3. A placement assembly is provided on the upper surface of the workbench 1 for placing the heat exchanger shell. The placement assembly includes a second mounting plate 16. The lower surface of the second mounting plate 16 is fixedly connected to the upper surface of the fixing block 21. A second placement platform 17 is fixedly connected to the upper surface of the second mounting plate 16. A motor 18 is fixedly connected to the lower surface of the workbench 1. A sprocket 19 is fixedly connected to the output end of the motor 18. The side wall of the sprocket 19 is rotatably connected inside the workbench 1. A chain 20 is provided between the sprockets 19. A connecting block 23 is fixedly connected to the side wall of the chain 20. The connecting block 23 is used to drive the mounting plate 3 to slide. The upper surface of the slider 22 is fixedly connected to the lower surface of the mounting plate 3. The side wall of the connecting block 23 is fixedly connected to the lower surface of the mounting plate 3.

[0035] During the tube insertion process, the operator first places the tube to be inserted on the placement platform 17. Then, the motor 18 is started. After the motor 18 starts, its output power drives the sprocket 19 to rotate. The rotation of the sprocket 19 further drives the chain 20 to start running. As the chain 20 rotates, the connecting block 23 connected to the chain 20 begins to move, driving the mounting plate 3 to move as well. At the same time, the slider 22 slides on the fixed block 21. With the cooperation of the slider 22 and the fixed block 21, the tube bundle, driven by the mounting plate 3, slowly slides into the inside of the tube. As the tube bundle gradually penetrates deeper into the tube, it is finally successfully inserted into the inside of the tube. This structure makes it easier to insert or remove the tube bundle from the heat exchanger shell, reducing the risk of damage to the tube bundle or heat exchanger shell during movement, and reducing the force required for manual handling and positioning of the tube bundle.

[0036] Working principle: When using this equipment for tube insertion, the tube bundle is placed on the placement platform 15, and then the hydraulic rod 12 is activated to retract and pull the connecting plate 13 to move. This causes the sliding sleeve 6 to slide on the fixed rod 4, which in turn moves the fixed plate 5. One side rack 9 drives the gear 11 to rotate, which in turn drives the other side rack 9 to move the other side fixed plate 5. This causes the clamping plate 8 to slowly approach the tube bundle and position and clamp it. During the tube insertion process, the tube sleeve is placed on the placement platform 17, and then the motor 18 is activated to drive the sprocket 19 to rotate, which in turn drives the chain 20 to rotate. This causes the connecting block 23 to move the mounting plate 3, while the slider 22 slides on the fixed block 21, thus slowly sliding the tube bundle into the sleeve for insertion.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat exchanger tube bundle insertion auxiliary device, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected to a support leg (2) at the bottom. The workbench (1) is provided with an installation plate (3) on its upper surface. The installation plate (3) is fixedly connected to a fixing rod (4). The side wall of the fixing rod (4) is slidably connected to a sliding sleeve (6). The lower surface of the sliding sleeve (6) is fixedly connected to a fixing plate (5). The upper surface of the fixing plate (5) is fixedly connected to a connecting block (7). The side wall of the connecting block (7) is fixedly connected to a clamp (8). The connecting block (7) is fixedly connected to a rack (9). The upper surface of the installation plate (3) is fixedly connected to a cylindrical sleeve (10). The cylindrical sleeve (10) is rotatably connected to a gear (11). The installation plate (3) is fixedly connected to a hydraulic rod (12). The output end of the hydraulic rod (12) is fixedly connected to a connecting plate (13). The upper surface of the connecting plate (13) is fixedly connected to the lower surface of the fixing plate (5) on the left side. The upper surface of the installation plate (3) is provided with an auxiliary component for placing the tube bundle.

2. The heat exchanger tube bundle insertion auxiliary device according to claim 1, characterized in that: A fixing block (21) is fixedly connected to the upper surface of the workbench (1), and a slider (22) is slidably connected to the side wall of the fixing block (21). A placement component is provided on the upper surface of the workbench (1) for placing the heat exchanger shell.

3. The heat exchanger tube bundle insertion auxiliary device according to claim 1, characterized in that: The auxiliary component includes a second fixing plate (14), the lower surface of which is fixedly connected to the upper surface of the first mounting plate (3), and the upper surface of the second fixing plate (14) is fixedly connected to a first placement platform (15).

4. The heat exchanger tube bundle insertion auxiliary device according to claim 2, characterized in that: The placement assembly includes a second mounting plate (16), the lower surface of which is fixedly connected to the upper surface of the fixing block (21), and a second placement platform (17) is fixedly connected to the upper surface of the second mounting plate (16).

5. The heat exchanger tube bundle insertion auxiliary device according to claim 1, characterized in that: The gear (11) meshes with the rack (9), and the side wall of the connecting plate (13) is slidably connected inside the mounting plate (3).

6. The heat exchanger tube bundle insertion auxiliary device according to claim 2, characterized in that: A motor (18) is fixedly connected to the lower surface of the workbench (1), and a sprocket (19) is fixedly connected to the output end of the motor (18).

7. The heat exchanger tube bundle insertion auxiliary device according to claim 6, characterized in that: The sidewall of the sprocket (19) is rotatably connected to the inside of the workbench (1), and a chain (20) is provided between the sprockets (19). A connecting block two (23) is fixedly connected to the sidewall of the chain (20).

8. The heat exchanger tube bundle insertion auxiliary device according to claim 7, characterized in that: The upper surface of the slider (22) is fixedly connected to the lower surface of the mounting plate (3), and the side wall of the connecting block (23) is fixedly connected to the lower surface of the mounting plate (3).

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