Heat exchanger welding device with smoke removal function

Abstract

The utility model discloses a heat exchanger welding device with a smoke removal function, which relates to the technical field of welding devices and comprises a bottom plate and a clamping component. The left side of the upper side of the bottom plate is provided with a stirring assembly and an adjusting assembly, the stirring assembly is connected with the adjusting assembly, the right end of the upper side of the bottom plate is provided with a dust suction assembly, the dust suction assembly is internally provided with a smoke removal assembly, and the upper side of the bottom plate is provided with a welding assembly; the clamping assembly comprises a first electric telescopic rod, a connecting frame, a second electric telescopic rod, a connecting disc, a third electric telescopic rod and a clamping frame, the first electric telescopic rod is installed at the rear end of the upper side of the bottom plate, the connecting frame is fixed to a telescopic arm of the first electric telescopic rod, and the second electric telescopic rod is installed on the front side of the interior of the connecting frame; the heat exchanger shell and the flange plate can be rapidly welded together, and meanwhile generated flue gas can be purified and removed.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a heat exchanger welding device with smoke removal function. Background Technology

[0002] A heat exchanger is an energy-saving device that enables heat transfer between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, allowing the fluid temperature to reach the specified parameters of the process to meet the requirements of the process conditions. It is also one of the main devices for improving energy efficiency. During the production and processing of heat exchangers, welding equipment is required to weld and fix the shell and flange together.

[0003] However, the aforementioned device still has some drawbacks in practical use. The most obvious is that it cannot achieve rotary welding of the shell to the flange, requiring manual welding around it. Furthermore, it cannot purify and remove the fumes generated during welding, reducing the air quality around the welding device, failing to protect the workers' health, and lowering the safety of the device. Therefore, we propose a heat exchanger welding device with fume removal capabilities. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a heat exchanger welding device with smoke removal function, which can quickly weld the heat exchanger shell and flange together, and at the same time purify and remove the generated flue gas, thus effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat exchanger welding device with smoke removal function, comprising a base plate and a clamping assembly;

[0006] Base plate: A toggle assembly and an adjustment assembly are installed on the upper left side, the toggle assembly and the adjustment assembly are connected, a dust extraction assembly is installed on the upper right end of the base plate, a smoke removal assembly is installed inside the dust extraction assembly, and a welding assembly is installed on the upper side of the base plate.

[0007] Clamping assembly: includes a first electric telescopic rod, a connecting frame, a second electric telescopic rod, a connecting plate, a third electric telescopic rod, and a clamping frame. The first electric telescopic rod is installed at the rear end of the upper side of the base plate. The connecting frame is fixed on the telescopic arm of the first electric telescopic rod. The second electric telescopic rod is installed on the front side inside the connecting frame. The connecting plate is fixed on the telescopic arm of the second electric telescopic rod. A cross groove is opened at the front end of the connecting plate. Four corresponding third electric telescopic rods are installed inside the cross groove. The clamping frame is fixed on the telescopic arm of the third electric telescopic rod. The input ends of the first, second, and third electric telescopic rods are all electrically connected to the output end of an external control switch group. The clamping assembly is used to clamp and fix the flange to be welded.

[0008] Furthermore, the actuation assembly includes a movable frame, a first motor, and an actuation lever. Two corresponding movable frames are provided on the left side of the upper side of the base plate. The first motor is installed on the front side of the movable frame. The actuation lever is rotatably connected inside the movable frame. The output shaft of the first motor is fixed to the front end of the actuation lever. The input end of the first motor is electrically connected to the output end of an external control switch group. By setting the actuation assembly, the outer shell of the heat exchanger is driven to rotate.

[0009] Furthermore, the adjustment assembly includes a fixed frame, a bidirectional screw, a limiting rod, and a second motor. The fixed frame is fixed to the left end of the upper side of the base plate. Both connecting frames are located inside the fixed frame. The front side of the connecting frame has threaded holes with opposite threads. The bidirectional screw is connected to the internal threads of the two threaded holes. The bidirectional screw is welded from two threaded rods with opposite threads. The bidirectional screw is rotatably connected inside the fixed frame. The rear side of the connecting frame has limiting holes with sliding connections to the internal limiting holes. The limiting rod is fixed inside the fixed frame. The input end of the second motor is electrically connected to the output end of an external control switch group. The distance between the two levers is adjusted by setting the adjustment assembly.

[0010] Furthermore, the welding assembly includes a guide frame, a sliding frame, a third motor, a gear, a toothed plate, a fourth electric telescopic rod, a fixing frame, and a welding gun. Two corresponding guide frames are fixed to the upper side of the base plate. Sliding frames are slidably connected to the sides of the guide frames. A third motor is mounted on the side of the sliding frame. A gear is fixed to the output shaft of the third motor. A toothed plate is fixed to the lower side inside the guide frame. The gear meshes with the toothed plate. A fourth electric telescopic rod is mounted on the upper side of the sliding frame. A fixing frame is fixed to the telescopic arms of the two fourth electric telescopic rods. A welding gun is mounted on the lower side of the fixing frame. The input ends of the third motor and the fourth electric telescopic rod are electrically connected to the output ends of an external control switch group. By setting up the welding assembly, it is convenient to weld the heat exchanger shell and flange.

[0011] Furthermore, the dust extraction assembly includes an extraction pipe, an extraction hose, an extraction box, and a baffle. An extraction hole is provided on the right side of the fixing frame, and an extraction pipe is fixed inside the extraction hole. An extraction hose is fixed to the right end of the extraction pipe. An extraction box is fixed on the upper side of the base plate. The front end of the extraction hose is fixed inside the air inlet provided on the rear side of the extraction box. A material receiving port is provided on the upper side of the extraction box, and a baffle is engaged inside the material receiving port. The dust extraction assembly is used to extract the fumes generated during the welding process.

[0012] Furthermore, the smoke removal assembly includes a fixed frame, a mesh barrel, activated carbon, and an exhaust fan. The exhaust box has two corresponding fixed frames inside, and a mesh barrel is fixed inside each of the two fixed frames. Activated carbon is filled in the gap between the mesh barrel and the two fixed frames. An exhaust fan is installed on the front side inside the exhaust box. The input end of the exhaust fan is electrically connected to the output end of an external control switch group. Smoke removal is achieved by setting up the smoke removal assembly.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This heat exchanger welding device with smoke removal function has the following advantages:

[0014] 1. The three-stage telescopic drive structure of the clamping assembly—first electric telescopic rod, second electric telescopic rod, and third electric telescopic rod—achieves precise positioning of the flange. Combined with the cross-groove guide mechanism of the connecting plate, it ensures the synchronous radial movement of the clamping frame, enabling the irregularly shaped flange to obtain uniform clamping force.

[0015] 2. The actuating component and the adjusting component form a linkage system. The bidirectional screw, driven by the second motor, precisely adjusts the distance between the two moving frames to adapt to heat exchanger shells of different diameters. The first motor achieves uniform rotation of the shell during the welding process through friction transmission between the actuating rod and the shell surface, eliminating the trajectory deviation of manual circumferential welding.

[0016] 3. The dust extraction component adopts a follow-up air extraction design. The air extraction pipe and the welding gun are rigidly connected on the fixed frame to ensure that the air extraction port and the welding point maintain a constant distance. The flexible connection of the air extraction hose compensates for the movement of the equipment, realizing real-time capture of smoke and dust at the moment of generation. The smoke removal component constructs a two-stage filtration system: the screen barrel acts as a pre-interception layer to filter large particles of molten slag, the activated carbon filled in the fixed frame forms an adsorption layer to remove gaseous harmful substances, the exhaust fan establishes a stable airflow, and the detachable design of the baffle facilitates the periodic replacement of filter media to maintain the system's continuous purification capability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0018] Figure 2This is a schematic diagram of the clamping component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the welding assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the smoke removal component of this utility model.

[0021] In the diagram: 1. Base plate; 2. Clamping assembly; 21. First electric telescopic rod; 22. Connecting frame; 23. Second electric telescopic rod; 24. Connecting plate; 25. Third electric telescopic rod; 26. Clamping frame; 3. Actuating assembly; 31. Moving frame; 32. First motor; 33. Actuating rod; 4. Adjusting assembly; 41. Fixing frame; 42. Bidirectional screw; 43. Limiting rod; 44. Second motor; 5. Welding assembly; 51. Guide frame; 52. Sliding frame; 53. Third motor; 54. Gear; 55. Tooth plate; 56. Fourth electric telescopic rod; 57. Fixing frame; 58. Welding gun; 6. Dust extraction assembly; 61. Extraction pipe; 62. Extraction hose; 63. Extraction box; 64. Baffle; 7. Smoke removal assembly; 71. Fixing frame; 72. Mesh tank; 73. Activated carbon; 74. Exhaust fan. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This embodiment provides a technical solution: a heat exchanger welding device with smoke removal function, including a base plate 1 and a clamping assembly 2;

[0024] Base plate 1: A toggle assembly 3 and an adjustment assembly 4 are installed on the upper left side, and the toggle assembly 3 and the adjustment assembly 4 are connected. A dust extraction assembly 6 is installed on the upper right end of the base plate 1, and a smoke removal assembly 7 is installed inside the dust extraction assembly 6. A welding assembly 5 is installed on the upper side of the base plate 1. The toggle assembly 3 includes a moving frame 31, a first motor 32, and a toggle lever 33. Two corresponding moving frames 31 are provided on the upper left end of the base plate 1. A first motor 32 is installed on the front side of the moving frame 31. A toggle lever 33 is rotatably connected inside the moving frame 31. The output shaft of the first motor 32 is fixed to the front end of the toggle lever 33. The input end of the first motor 32 is electrically connected to the output end of an external control switch group. The adjustment assembly 4 includes a fixed frame 41, a bidirectional screw 42, a limit rod 43, and a second... The motor 44 has a fixed frame 41 fixed to the left end of the upper side of the base plate 1. Two connecting brackets 22 are located inside the fixed frame 41. The front side of the connecting bracket 22 has threaded holes with opposite threads. The internal threads of the two threaded holes are connected to a bidirectional screw 42, which is welded from two threaded rods with opposite threads. The bidirectional screw 42 is rotatably connected inside the fixed frame 41. The rear side of the connecting bracket 22 has limit holes, and the internal threads of the two limit holes are slidably connected to a limit rod 43, which is fixed inside the fixed frame 41. The input end of the second motor 44 is electrically connected to the output end of an external control switch group. The welding assembly 5 includes a guide frame 51, a slide frame 52, a third motor 53, a gear 54, a gear plate 55, and a fourth motor. The system includes a telescopic rod 56, a fixing frame 57, and a welding gun 58. Two corresponding guide frames 51 are fixed to the upper side of the base plate 1. A sliding frame 52 is slidably connected to the side of the guide frame 51. A third motor 53 is mounted on the side of the sliding frame 52. A gear 54 is fixed to the output shaft of the third motor 53. A toothed plate 55 is fixed to the lower side inside the guide frame 51, and the gear 54 meshes with the toothed plate 55. A fourth electric telescopic rod 56 is mounted on the upper side of the sliding frame 52. A fixing frame 57 is fixed to the telescopic arms of the two fourth electric telescopic rods 56. A welding gun 58 is mounted on the lower side of the fixing frame 57. The input ends of the third motor 53 and the fourth electric telescopic rod 56 are electrically connected to the output ends of an external control switch group. The dust extraction assembly 6 includes an extraction pipe 61, an extraction hose 62, and an extraction tube. The enclosure 63 and baffle 64 have an exhaust port on the right side of the fixing frame 57. An exhaust pipe 61 is fixed inside the exhaust port, and an exhaust hose 62 is fixed to the right end of the exhaust pipe 61. An exhaust box 63 is fixed to the upper side of the base plate 1. The front end of the exhaust hose 62 is fixed inside the air inlet on the rear side of the exhaust box 63. A material outlet is opened on the upper side of the exhaust box 63, and a baffle 64 is snapped into the inside of the material outlet. The smoke removal assembly 7 includes a fixing frame 71, a mesh barrel 72, activated carbon 73, and an exhaust fan 74. Two corresponding fixing frames 71 are fixed inside the exhaust box 63. A mesh barrel 72 is fixed inside the two fixing frames 71. Activated carbon 73 is filled in the gap between the mesh barrel 72 and the two fixing frames 71. An exhaust fan 74 is installed on the front side of the exhaust box 63.The input terminal of the exhaust fan 74 is electrically connected to the output terminal of an external control switch group. Smoke removal is achieved through the smoke removal component 7, and the dust extraction component 6 extracts fumes generated during welding. The welding component 5 facilitates welding of the heat exchanger shell and flange. The adjustment component 4 adjusts the distance between the two toggle levers 33, and the toggle component 3 rotates the heat exchanger shell.

[0025] Clamping assembly 2 includes a first electric telescopic rod 21, a connecting frame 22, a second electric telescopic rod 23, a connecting plate 24, a third electric telescopic rod 25, and a clamping frame 26. The first electric telescopic rod 21 is installed at the rear end of the upper side of the base plate 1. The connecting frame 22 is fixed on the telescopic arm of the first electric telescopic rod 21. The second electric telescopic rod 23 is installed on the front side inside the connecting frame 22. The connecting plate 24 is fixed on the telescopic arm of the second electric telescopic rod 23. A cross groove is opened at the front end of the connecting plate 24. Four corresponding third electric telescopic rods 25 are installed inside the cross groove. The clamping frame 26 is fixed on the telescopic arm of the third electric telescopic rod 25. The input ends of the first electric telescopic rod 21, the second electric telescopic rod 23, and the third electric telescopic rod 25 are all electrically connected to the output end of an external control switch group. The flange to be welded is clamped and fixed by setting the clamping assembly 2.

[0026] The working principle of the heat exchanger welding device with smoke removal function provided by this utility model is as follows: First, control the four third electric telescopic rods 25 to extend and retract synchronously, drive the four clamping frames 26 to move, and fix the flange through four-point clamping force. Then, start the first electric telescopic rod 21 to adjust the height of the flange through the connecting frame 22. After adjustment, push the connecting plate 24 to move through the second electric telescopic rod 23 to adjust its assembly distance with the shell, so that it fits the shell. After fitting, start the second motor 44 to drive the bidirectional screw 42 to rotate, drive the two moving frames 31 to slide in the opposite direction along the limit rod 43, adjust the distance between the two actuating rods 33 to fit the shell surface, and then the two first motors 32 make the two actuating rods 33 rotate, drive the shell to rotate at a uniform speed to adjust its welding position. After adjustment, start the two third motors 53 to drive the two gears 54 to rotate. Under the action of the toothed plate 55, the two sliding frames 52 move horizontally along the two guide frames 51 to adjust the position of the welding gun 58. After adjustment, the vertical height of the fixed frame 57 is adjusted by the two fourth electric telescopic rods 56 so that the welding gun 58 is accurately aligned with the weld seam. Then the flange can be welded. After one weld, the four clamping frames 26 are controlled to move away from the flange. Then the shell is controlled to rotate. During its rotation, the welding gun 58 can weld the flange evenly. During the welding process, the exhaust fan 74 is controlled to run. The fumes generated at the welding point are drawn in through the exhaust pipe 61 and transported to the exhaust box 63 through the exhaust hose 62. The fumes pass through the screen barrel 72 to intercept slag particles. The activated carbon 73 adsorbs harmful gases. After purification, the gas is discharged from the front end of the exhaust box 63. The baffle 64 is designed to be detachable, which facilitates regular cleaning of the screen barrel 72 and replacement of the activated carbon 73.

[0027] It is worth noting that the external control switch group disclosed in the above embodiments is equipped with buttons corresponding to the first electric telescopic rod 21, the second electric telescopic rod 23, the third electric telescopic rod 25, the fourth electric telescopic rod 56, the first motor 32, the second motor 44, the third motor, and the exhaust fan 74. The exhaust fan 74 can be freely configured according to the actual application scenario. The first motor 32, the second motor 44, and the third motor can be selected as 1LE0003 three-phase asynchronous motors. The first electric telescopic rod 21, the second electric telescopic rod 23, the third electric telescopic rod 25, and the fourth electric telescopic rod 56 can be selected as TGC-A high-thrust electric telescopic rods.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat exchanger welding device with smoke removal function, characterized in that: Includes a base plate (1) and a clamping assembly (2); Base plate (1): A toggle assembly (3) and an adjustment assembly (4) are installed on the upper left side. The toggle assembly (3) and the adjustment assembly (4) are connected. A dust extraction assembly (6) is installed on the upper right side of the base plate (1). A smoke removal assembly (7) is installed inside the dust extraction assembly (6). A welding assembly (5) is installed on the upper side of the base plate (1). Clamping assembly (2): includes a first electric telescopic rod (21), a connecting frame (22), a second electric telescopic rod (23), a connecting plate (24), a third electric telescopic rod (25), and a clamping frame (26). The first electric telescopic rod (21) is installed at the rear end of the upper side of the base plate (1). The connecting frame (22) is fixed on the telescopic arm of the first electric telescopic rod (21). The second electric telescopic rod (23) is installed on the front side inside the connecting frame (22). The connecting plate (24) is fixed on the telescopic arm of the second electric telescopic rod (23). A cross groove is opened at the front end of the connecting plate (24). Four corresponding third electric telescopic rods (25) are installed inside the cross groove. The clamping frame (26) is fixed on the telescopic arm of the third electric telescopic rod (25). The input ends of the first electric telescopic rod (21), the second electric telescopic rod (23), and the third electric telescopic rod (25) are all electrically connected to the output end of an external control switch group.

2. The heat exchanger welding device with smoke removal function according to claim 1, characterized in that: The actuation assembly (3) includes a movable frame (31), a first motor (32), and an actuation lever (33). Two corresponding movable frames (31) are provided on the left side of the upper side of the base plate (1). The first motor (32) is installed on the front side of the movable frame (31). The actuation lever (33) is rotatably connected inside the movable frame (31). The output shaft of the first motor (32) is fixed to the front end of the actuation lever (33). The input end of the first motor (32) is electrically connected to the output end of an external control switch group.

3. The heat exchanger welding device with smoke removal function according to claim 2, characterized in that: The adjustment assembly (4) includes a fixed frame (41), a bidirectional screw (42), a limiting rod (43), and a second motor (44). The fixed frame (41) is fixed at the left end of the upper side of the base plate (1). Two connecting frames (22) are located inside the fixed frame (41). The front side of the connecting frame (22) is provided with threaded holes. The two threaded holes have opposite threads. The two threaded holes are connected to the bidirectional screw (42) by internal threads. The bidirectional screw (42) is welded from two threaded rods with opposite threads. The bidirectional screw (42) is rotatably connected inside the fixed frame (41). The rear side of the connecting frame (22) is provided with limiting holes. The two limiting holes are slidably connected to the limiting rod (43). The limiting rod (43) is fixed inside the fixed frame (41). The input end of the second motor (44) is electrically connected to the output end of an external control switch group.

4. The heat exchanger welding device with smoke removal function according to claim 1, characterized in that: The welding assembly (5) includes a guide frame (51), a sliding frame (52), a third motor (53), a gear (54), a toothed plate (55), a fourth electric telescopic rod (56), a fixing frame (57), and a welding gun (58). Two corresponding guide frames (51) are fixed on the upper side of the base plate (1). The sliding frame (52) is slidably connected to the side of the guide frame (51). The third motor (53) is mounted on the side of the sliding frame (52). The output shaft of the third motor (53) is fixed with... There is a gear (54), and a toothed plate (55) is fixed on the lower side inside the guide frame (51). The gear (54) meshes with the toothed plate (55). A fourth electric telescopic rod (56) is installed on the upper side of the slide frame (52). A fixing frame (57) is fixed on the telescopic arm of the two fourth electric telescopic rods (56). A welding gun (58) is installed on the lower side of the fixing frame (57). The input ends of the third motor (53) and the fourth electric telescopic rod (56) are electrically connected to the output end of the external control switch group.

5. A heat exchanger welding device with smoke removal function according to claim 4, characterized in that: The dust extraction assembly (6) includes an extraction pipe (61), an extraction hose (62), an extraction box (63), and a baffle (64). An extraction hole is provided on the right side of the fixing frame (57). An extraction pipe (61) is fixed inside the extraction hole. An extraction hose (62) is fixed at the right end inside the extraction pipe (61). An extraction box (63) is fixed on the upper side of the base plate (1). The front end of the extraction hose (62) is fixed inside the air inlet provided on the rear side of the extraction box (63). A material receiving port is provided on the upper side of the extraction box (63). A baffle (64) is snapped into the inside of the material receiving port.

6. The heat exchanger welding device with smoke removal function according to claim 5, characterized in that: The smoke removal assembly (7) includes a fixed frame (71), a mesh barrel (72), activated carbon (73), and an exhaust fan (74). The exhaust box (63) has two corresponding fixed frames (71) fixed inside, and a mesh barrel (72) is fixed inside the two fixed frames (71). Activated carbon (73) is filled in the gap between the mesh barrel (72) and the two fixed frames (71). An exhaust fan (74) is installed on the front side inside the exhaust box (63). The input end of the exhaust fan (74) is electrically connected to the output end of an external control switch group.

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