Heat exchange tube feeding device

Abstract

The invention discloses a heat exchange tube feeding device, and relates to the technical field of heat exchange tube feeding equipment. The heat exchange tube feeding device comprises a tube penetrating mechanism and a tube bin, the tube penetrating mechanism comprises a frame body, a clamping assembly and a driving assembly, the upper clamping mechanism is connected with the connecting frame through an adjusting mechanism, and the adjusting mechanism is used for adjusting the distance between the upper clamping mechanism and the lower clamping mechanism; the driving assembly comprises a second motor, a driving chain wheel and a driving chain; the pipe bin is located outside the pipe penetrating mechanism and comprises a bin body, a limiting mechanism and an ejection mechanism, and a channel is formed by a plurality of guide plates in the bin body. The heat exchange tube is conveyed through the synergistic effect of the clamping assembly and the multiple supporting mechanisms, the heat exchange tube is stably borne and accurately conveyed, time and labor are saved, the production efficiency is improved, the installation error caused by improper manual operation can be reduced, and the production efficiency is improved. And standardized and modularized transportation and storage of the heat exchange tubes can be achieved through the tube bin.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger tube feeding equipment, and more particularly to a heat exchanger tube feeding device. Background Technology

[0002] In the carbon black production process, the air preheater is a key waste heat recovery device. It primarily achieves heat exchange between high-temperature flue gas and combustion air through internal heat exchanger tube bundles, thereby improving combustion efficiency and reducing energy consumption. Currently, there are several difficulties in the loading process of the air preheater heat exchanger tubes: First, due to the large length and weight of individual heat exchanger tubes, on-site installation usually requires the use of cranes or other lifting equipment to hoist the tubes one by one to the installation position. This process requires not only precise operation from crane operators but also the cooperation of multiple ground and high-altitude workers to align, stabilize, guide, and fix the tubes. This human-machine collaborative installation method is difficult to operate, requiring skilled coordination between workers and cranes, and the loading speed of the heat exchanger tubes is slow. Especially when installing large-scale heat exchanger tube bundles, the slow loading speed significantly extends the construction period and significantly reduces production efficiency. Second, the long length of the heat exchanger tubes not only makes them inconvenient for crane lifting but also poses safety hazards due to the high lifting height. Meanwhile, because the heat exchange tubes need to be bundled and transported from other production stations to the vicinity of the tube threading mechanism using cable ties, the transportation and storage of the heat exchange tubes are very inconvenient. This makes the transportation of heat exchange tubes not only labor-intensive but also cumbersome, significantly reducing production efficiency. Summary of the Invention

[0003] To address the problems of difficult and slow feeding operations and inconvenient transportation and storage of heat exchange tubes in current heat exchange tube feeding methods, this invention provides a heat exchange tube feeding device.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A heat exchanger tube feeding device includes a tube threading mechanism and a tube bin. The tube threading mechanism includes a frame, a clamping assembly, and a driving assembly. The clamping assembly includes a connecting frame, an upper clamping mechanism, and a lower clamping mechanism. The connecting frame is connected to the frame and is movable along the frame. The upper and lower clamping mechanisms are arranged opposite to each other on the connecting frame, and the upper clamping mechanism is connected to the connecting frame via an adjusting mechanism for adjusting the distance between the upper and lower clamping mechanisms. Both the upper and lower clamping mechanisms include a first motor and a plurality of first rollers, with the first motor drivingly connected to each of the first rollers. The driving assembly includes a second motor, a drive sprocket, and a drive chain. The second motor is drivingly connected to the drive sprocket, and the drive chain is disposed on the drive sprocket and connected to the connecting frame. The tube chamber is located outside the tube insertion mechanism. The tube chamber includes a chamber body, a limiting mechanism, and an ejection mechanism. The chamber body is formed by a number of guide plates to form a channel. The limiting mechanism is set on the chamber body and located above the channel outlet. A support plate is fixed on the chamber body near the channel outlet, and the ejection mechanism is set on the support plate.

[0005] Furthermore, there are two clamping components, which are arranged symmetrically on the frame; there are two tube compartments, which are arranged symmetrically on the outside of the frame.

[0006] Furthermore, the upper clamping mechanism also includes a first fixing frame, which is mounted on the connecting frame via a slider and a slide rail. The lower clamping mechanism also includes a second fixing frame, which is fixedly connected to the connecting frame.

[0007] Furthermore, the adjusting mechanism is a lead screw, one end of which is connected to an adjusting motor, and the nut slider in the adjusting mechanism is fixedly connected to the first fixed frame.

[0008] Furthermore, both the first and second fixed frames are provided with U-shaped grooves, each of the first support rollers is a U-shaped wheel, and each of the first support rollers is disposed in the U-shaped groove and rotatably connected to the U-shaped groove.

[0009] Furthermore, the first motor is fixed on both the first fixed frame and the second fixed frame. The first motor drives each first support roller to rotate through the cooperation of the clamping sprocket and the clamping chain.

[0010] Furthermore, the drive sprocket includes a first drive sprocket and a second drive sprocket, with the first drive sprocket and the second motor disposed at the top of the frame and the second drive sprocket disposed at the bottom of the frame.

[0011] Furthermore, several support mechanisms are arranged on both the left and right sides of the frame. Each support mechanism includes a support frame and a second support roller. The support frame is connected to the frame via a slider and a slide rail. A U-shaped groove is formed on the top of one side of the support frame, and the second support roller is disposed in the U-shaped groove and rotatably connected to it. All second support rollers are U-shaped wheels. Several drive components are provided, each connected to one of the two support mechanisms arranged opposite to each other on the left and right sides. The drive chain is connected to the support frame.

[0012] Furthermore, each of the guide plates is triangular, and the bent channel is formed by the interval between adjacent guide plates. The limiting mechanism includes a fixed base, a sleeve, a rocker arm, a connecting arm, and a limiting block. The fixed base and sleeve are fixed to the tube chamber. The end of the rocker arm is rotatably connected to the fixed base. One end of the connecting arm is rotatably connected to the middle of the rocker arm, and the other end is rotatably connected to the limiting block. The limiting block is disposed inside the sleeve and can move along the sleeve. The support plate includes a first connecting section and a second connecting section. The first connecting section is L-shaped and fixedly connected to the chamber body. The second connecting section is triangular and fixedly connected to the support plate. The ejection mechanism includes a cylinder and an ejector. The ejector has a U-shaped cross-section and is adapted to the first connecting section. The cylinder is located below the first connecting section, and the telescopic rod of the cylinder is connected to the bottom of the ejector.

[0013] Furthermore, a number of tracks are provided between the pipe threading mechanism and the pipe compartment, and a number of track wheels that can be adapted to the tracks are rotatably connected to the bottom of the frame.

[0014] The beneficial effects of this invention are as follows: Through the synergistic action of the clamping assembly and several supporting mechanisms, this invention can stably support and accurately transport heat exchanger tubes, avoiding the high-intensity physical labor required for manual handling and crane installation and positioning. This not only reduces labor costs but also lowers the labor intensity of workers and reduces installation errors caused by improper manual operation, significantly improving the stability of installation quality. In this invention, the tube compartment, with its multi-bend-shaped channels, not only facilitates the storage and transportation of heat exchanger tubes but also, in conjunction with the tube threading mechanism, allows the heat exchanger tubes to automatically roll out of the compartment and fall onto the clamping assembly and supporting mechanisms under gravity. This eliminates the need for manual handling of the heat exchanger tubes, effectively improving installation efficiency. Furthermore, the tube compartment, through adjustable limit blocks, can accommodate various types of heat exchanger tubes, significantly expanding its applicability. Attached Figure Description

[0015] Figure 1 The diagram shown is a schematic representation of the structural principle of one embodiment of the present invention.

[0016] Figure 2 As shown Figure 1 Top view.

[0017] Figure 3 for Figure 1 The partial structural diagram shows the structure of the tube insertion mechanism.

[0018] Figure 4 As shown Figure 3 Enlarged view of the local structure at point B.

[0019] Figure 5 As shown Figure 3 The right view.

[0020] Figure 6 for Figure 5 The partial structural diagram shows the structure of the clamping assembly.

[0021] Figure 7 for Figure 1 The partial structural diagram shows the mechanism of the storage unit.

[0022] Figure 8 As shown Figure 7 Enlarged view of the local structure at point C.

[0023] Figure 9 As shown Figure 7 The right view.

[0024] Figure 10 As shown Figure 9 Cross-sectional view at point A in the middle.

[0025] Figure 11 As shown Figure 10 A side view.

[0026] Explanation of reference numerals in the attached drawings: 1. Frame; 2. First fixed frame; 3. Second fixed frame; 4. First support roller; 5. First motor; 6. Support frame; 7. Second support roller; 8. Second motor; 9. First drive sprocket; 10. Drive chain; 11. Track; 12. Chamber; 13. Guide plate; 14. Rocker arm; 15. Connecting arm; 16. Sleeve; 17. Limiting block; 18. First connecting section; 19. Second connecting section; 20. Cylinder; 21. Ejector. Detailed Implementation

[0027] This invention discloses a heat exchange tube feeding device. The following describes one embodiment of the invention in detail with reference to the accompanying drawings.

[0028] Combination Figure 1 and Figure 2As shown, a heat exchanger tube feeding device includes a tube threading mechanism and a tube bin. The tube threading mechanism includes a frame 1, a clamping assembly, and a driving assembly. There are two clamping assemblies, which are symmetrically arranged on the frame 1. The clamping assembly includes a connecting frame, an upper clamping mechanism, and a lower clamping mechanism. The connecting frame is mounted on the frame 1 through a slider and a slide rail. The connecting frame is connected to the driving assembly, which is used to drive the connecting frame to move up and down relative to the frame 1.

[0029] Combination Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, the upper clamping mechanism and the lower clamping mechanism are arranged opposite to each other. The upper clamping mechanism is connected to the connecting frame through an adjusting mechanism, which is used to adjust the distance between the upper and lower clamping mechanisms. The upper clamping mechanism includes a first motor 5, a first fixed frame 2, and several first support rollers 4. The first fixed frame 2 is mounted on the connecting frame through a slider and a slide rail, and can move relative to the connecting frame. A U-shaped groove is provided on one side of the bottom of the first fixed frame 2. Each first support roller 4 is a U-shaped wheel, and each first support roller 4 is arranged in the U-shaped groove and rotatably connected to the U-shaped groove. The first motor 5 is fixedly connected to the first fixed frame 2, and the first motor 5 drives each first support roller 4 to rotate synchronously through a clamping sprocket and a clamping chain. The adjusting mechanism is a lead screw. One end of the lead screw in the adjusting mechanism is connected to an adjusting motor. The nut slider in the adjusting mechanism is fixedly connected to the first fixed frame 2, and is used to drive the first fixed frame 2 to move up and down under the action of the adjusting motor.

[0030] The lower clamping mechanism includes a first motor 5, a second fixed frame 3, and several first support rollers 4. The second fixed frame 3 is fixedly connected to the connecting frame. A U-shaped groove is also provided on the top side of one side of the second fixed frame 3. Each of the first support rollers 4 is a U-shaped wheel and is arranged in the U-shaped groove and rotatably connected to the U-shaped groove. The first motor 5 is fixedly connected to the second fixed frame 3, and the first motor 5 drives each of the first support rollers 4 to rotate synchronously through the clamping sprocket and the clamping chain. The rotation direction of each of the first support rollers 4 in the upper clamping mechanism is opposite to the rotation direction of each of the first support rollers 4 in the lower clamping mechanism.

[0031] The drive assembly comprises several components, including a second motor 8, drive sprockets, and drive chains 10. The second motor 8 is connected to the drive sprockets. The drive sprockets include a first drive sprocket 9 and a second drive sprocket. The first drive sprocket 9 and the second motor 8 are located at the top of the frame 1, and the second drive sprocket is located at the bottom of the frame 1. The drive connection is configured on the first drive sprocket 9 and the second drive sprocket and connected to the connecting frame. Driven by the second motor 8, the connecting frames located on the left and right sides of the frame 1 move up and down alternately.

[0032] Several symmetrically arranged support mechanisms are provided on both the left and right sides of the frame 1. Each support mechanism includes a support frame 6 and second rollers 7. The support frame 6 is mounted on the frame 1 via a slider and a slide rail. A U-shaped groove is also provided on the top of one side of the support frame 6, and the second rollers 7 are disposed within and rotatably connected to the U-shaped groove. The second rollers 7 are also U-shaped wheels. The support mechanisms are connected to the drive assembly, and the drive chain 10 is connected to the support frame 6. Driven by the second motor 8, the support frames 6 located on the left and right sides of the frame 1 move alternately up and down.

[0033] Combination Figure 7 , Figure 8 as well as Figure 9 As shown, there are two tube hoppers, symmetrically located on the left and right sides of the tube insertion mechanism. Each hopper includes a hopper body 12, a limiting mechanism, and an ejection mechanism. Several sets of guide plates 13 are fixed inside the hopper body 12. Each set of guide plates 13 contains several triangular guide plates 13, and the intervals between adjacent guide plates 13 form channels with multiple bends. A support plate is provided below the channel opening, comprising a first connecting section 18 and a second connecting section 19. The first connecting section 18 is L-shaped and divided into a horizontal segment and a vertical segment. The end of the horizontal segment is fixedly connected to the hopper body 12. The second connecting section 19 is fixedly connected to the top of the horizontal segment and is spaced apart from the vertical segment.

[0034] Combination Figure 10 and Figure 11 As shown, the ejection mechanism includes a cylinder 20 and an ejector 21. The ejector 21 has a U-shaped cross-section and is adapted to the first connecting section 18. The ejector 21 is located between the second connecting section 19 and the vertical segment, and both sides of the ejector 21 can protrude from the first connecting section 18. The cylinder 20 is located below the first connecting section 18, and the telescopic rod of the cylinder 20 is connected to the ejector 21. Several limiting mechanisms are located above the channel outlet. The limiting mechanisms include a fixed seat, a sleeve 16, a rocker arm 14, a connecting arm, and a limiting block 17. The fixed seat and the sleeve 16 are both fixedly connected to the tube compartment, and the fixed seat is located above the sleeve 16. The rocker arm 14 is L-shaped, and one end of the rocker arm 14 is rotatably connected to the fixed seat. One end of the connecting arm is rotatably connected to the middle of the rocker arm 14, and the other end is rotatably connected to the top of the limiting block 17. The limiting block 17 is disposed inside the sleeve 16 and can move up and down along the sleeve 16. The bottom of the limiting block 17 can protrude from the sleeve 16 and extend into the channel outlet.

[0035] Several tracks 11 are provided between the pipe threading mechanism and the pipe bin. Several walking motors are fixed at the bottom of the frame 1. The walking motors are connected to the track wheels and are used to drive each track wheel to move along the track 11, thereby adjusting the interval between the frame 1 and the pipe bin.

[0036] In use, this invention can install heat exchange tubes in two sets of mounting fittings, which are located in front of the invention. The frame 1 starts its travel motor, which drives the track wheels to move to the left along track 11, approaching the tube compartment located on the left outer side of the frame 1. The second motor 8 on the frame 1 rotates, causing the clamping assembly and several support mechanisms on the left side of the frame 1 to move downwards to a suitable position and stop, while the clamping assembly and several support mechanisms on the right side of the frame 1 move upwards to a suitable position and stop. Several heat exchange tubes are arranged sequentially along the channel in the tube compartment on the left side. The operator holds the handle on the rocker arm 14, causing the rocker arm 14 to rotate upwards relative to the fixed base, simultaneously driving the connecting arm to move upwards along the sleeve 16, causing the end of the connecting arm to retract into the sleeve 16. At this time, since the channel opening is not obstructed by the connecting arm, a heat exchange tube can roll out from the channel, pass through the second connecting section 19, and fall between the vertical segments of the second connecting section 19 and the first connecting section 18. The worker then grips the handle on the rocker arm 14 again, causing the rocker arm 14 to rotate downwards relative to the fixed base. This causes the connecting arm to move downwards along the sleeve 16, so that the end of the connecting arm extends from inside the sleeve 16 to the channel opening, preventing the next heat exchange tube from rolling out. A U-shaped guide block is fixedly connected to the bottom of the first connecting section 18. The guide block is hollow inside, and the ejector 12 is disposed inside the guide block. The ejector 12 can move up and down along the guide block under the action of the cylinder 20. The telescopic rod of the cylinder 20 causes the ejector 21 to move upwards, so that the top of the two side walls of the ejector 21 extends out of the guide block, and ejects the heat exchange tube from the position between the second connecting section 19 and the first connecting section 18, causing it to fall onto the clamping assembly and several support mechanisms located outside and below the first connecting section 18. The adjusting motor in the adjusting mechanism starts, driving the upper clamping mechanism downwards to approach the lower clamping mechanism, so that the first rollers 4 in the upper clamping mechanism and the first rollers 4 in the lower clamping mechanism clamp the heat exchange tube. After the operator moves to the appropriate position using the track wheels and track 11, the second motor 8 on the frame 1 rotates, driving the heat exchange tube to the appropriate position through the clamping assembly and several support mechanisms on the left side. Then, the first motor 5, through the clamping chain and clamping sprocket, drives the first rollers 4 in the upper clamping mechanism and the first rollers 4 in the lower clamping mechanism to rotate synchronously, and the rotation direction of the first rollers 4 in the upper clamping mechanism is opposite to that of the first rollers 4 in the lower clamping mechanism, thus enabling the heat exchange tube to be transported to the installation fitting. When the operator needs to retrieve the heat exchange tube from the tube compartment located on the right outer side, the steps are as described above.

[0037] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A heat exchanger tube feeding device, characterized in that: The device includes a pipe threading mechanism and a pipe compartment. The pipe threading mechanism includes a frame (1), a clamping assembly, and a driving assembly. The clamping assembly includes a connecting frame, an upper clamping mechanism, and a lower clamping mechanism. The connecting frame is connected to the frame (1) and can move along the frame (1). The upper clamping mechanism and the lower clamping mechanism are arranged opposite to each other on the connecting frame. The upper clamping mechanism is connected to the connecting frame through an adjustment mechanism. The adjustment mechanism is used to adjust the distance between the upper clamping mechanism and the lower clamping mechanism. The upper clamping mechanism and the lower clamping mechanism each include a first motor (5) and a plurality of first rollers (4). The first motor (5) is connected to each of the first rollers (4) in a transmission connection. The drive assembly includes a second motor (8), a drive sprocket, and a drive chain (10). The second motor (8) is connected to the drive sprocket, and the drive chain (10) is disposed on the drive sprocket and connected to the connecting frame. The tube compartment is located outside the tube insertion mechanism. The tube compartment includes a compartment body (12), a limiting mechanism, and an ejection mechanism. The compartment body (12) has a channel formed by several guide plates (13). The limiting mechanism is set on the compartment body (12) and located above the channel outlet. A support plate is fixed on the compartment body (12) near the channel outlet. The ejection mechanism is set on the support plate.

2. The heat exchanger tube feeding device according to claim 1, characterized in that: There are two clamping components, which are arranged symmetrically on the frame (1); there are two tube compartments, which are arranged symmetrically on the outside of the frame (1).

3. The heat exchanger tube feeding device according to claim 1, characterized in that: The upper clamping mechanism further includes a first fixing frame (2), which is mounted on the connecting frame by means of a slider and a slide rail. The lower clamping mechanism also includes a second fixing frame (3), which is fixedly connected to the connecting frame.

4. The heat exchanger tube feeding device according to claim 3, characterized in that: The adjustment mechanism is a lead screw, one end of which is connected to an adjustment motor, and the nut slider in the adjustment mechanism is fixedly connected to the first fixed frame (2).

5. A heat exchanger tube feeding device according to claim 3, characterized in that: Both the first fixing frame (2) and the second fixing frame (3) are provided with U-shaped grooves. Each of the first support rollers (4) is a U-shaped wheel, and each of the first support rollers (4) is arranged in the U-shaped groove and rotatably connected to the U-shaped groove.

6. The heat exchanger tube feeding device according to claim 3, characterized in that: The first motor (5) is fixed on both the first fixed frame (2) and the second fixed frame (3). The first motor (5) drives each first support roller (4) to rotate through the cooperation of the clamping sprocket and the clamping chain.

7. A heat exchanger tube feeding device according to claim 2, characterized in that: The drive sprocket includes a first drive sprocket (9) and a second drive sprocket. The first drive sprocket (9) and the second motor (8) are arranged on the top of the frame (1), and the second drive sprocket is arranged on the bottom of the frame (1).

8. A heat exchanger tube feeding device according to claim 7, characterized in that: The frame (1) is provided with several support mechanisms on both the left and right sides. The support mechanism includes a support frame (6) and a second support roller (7). The support frame (6) is connected to the frame (1) by a slider and a slide rail. A U-shaped groove is provided on the top of one side of the support frame (6). The second support roller (7) is disposed in the U-shaped groove and is rotatably connected to the U-shaped groove. The second support roller (7) is a U-shaped wheel. The drive assembly has several components and is connected to two support mechanisms arranged opposite to each other on the left and right sides. The drive chain (10) is connected to the support frame (6).

9. A heat exchanger tube feeding device according to claim 1, characterized in that: Each of the guide plates (13) is triangular, and the folded channel is formed by the spacing between adjacent guide plates (13); The limiting mechanism includes a fixed seat, a sleeve (16), a rocker arm (14), a connecting arm, and a limiting block (17). The fixed seat and the sleeve (16) are fixed on the tube compartment. The end of the rocker arm (14) is rotatably connected to the fixed seat. One end of the connecting arm is rotatably connected to the middle of the rocker arm (14), and the other end is rotatably connected to the limiting block (17). The limiting block (17) is disposed inside the sleeve (16) and can move along the sleeve (16). The support plate includes a first connecting section (18) and a second connecting section (19). The first connecting section (18) is L-shaped and fixedly connected to the compartment body (12). The second connecting section (19) is triangular and fixedly connected to the second connecting section (19). The ejection mechanism includes a cylinder (20) and an ejector (21). The ejector (21) has a U-shaped cross-section and is adapted to the first connecting section (18). The cylinder (20) is located below the first connecting section (18), and the telescopic rod of the cylinder (20) is connected to the bottom of the ejector (21).

10. A heat exchanger tube feeding device according to claim 1, characterized in that: A number of tracks (11) are provided between the pipe threading mechanism and the pipe compartment, and a number of track wheels that can be adapted to the tracks (11) are rotatably connected to the bottom of the frame (1).

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