Heat-shrink tube shrinkage heating station of condenser tube

Abstract

The utility model discloses a heat shrink tube contraction heating work station of condensing pipe, including hot -blast cylinder, the hot -blast cylinder end face is open setting, the hot -blast cylinder axle center is provided with the mounting block, the hot -blast cylinder inner circle is distributed with multiple gear no.

Description

Technical Field

[0001] This utility model relates to the field of condenser tube processing technology, and in particular to a heat shrink tubing shrink heating station for condenser tubes. Background Technology

[0002] In refrigeration, chemical and industrial equipment, condenser tubes are key components of heat exchange. They are exposed to high humidity, corrosive media or extreme temperature environments for a long time, which can easily lead to corrosion, leakage or insulation failure. In order to improve the service life and performance of condenser tubes, heat shrink tubing is usually used. By heating, the heat shrink tubing shrinks and fits tightly against the surface of the pipe, thereby achieving the effects of corrosion prevention, insulation and sealing.

[0003] In existing technologies, the heating of heat shrink tubing for condensers mainly relies on a hot air box. The working principle involves hanging the condenser and heat shrink tubing inside the box, and then heating and shrinking them by blowing hot air from one or both sides. However, this traditional heating method has significant limitations: because the hot air is blown in a single direction, it is difficult to effectively cover the back of complex pipes or narrow areas, resulting in uneven shrinkage of the heat shrink tubing. Some areas may experience incomplete or excessive shrinkage, severely affecting the coating quality. Furthermore, for complex pipe structures with multiple bends and branches, hot air cannot reach the inside of the pipe or the bends, further exacerbating the problem of uneven heating. Therefore, this paper proposes a heat shrink tubing shrinking and heating station to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat shrink tubing shrinkage heating station for condenser tubes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A heat shrink tubing shrinking and heating station for condenser tubes includes a hot air duct with an open end face. A mounting block is located at the center of the hot air duct's axis. Multiple sets of gears are distributed circumferentially inside the hot air duct. A rotary joint is located at the center of each gear, and a heating tube is mounted at the other end of each rotary joint. The outer wall of each heating tube is L-shaped, with multiple through holes penetrating its vertical section and communicating with the interior of the rotary joint. A certain gap exists between the vertical section of the heating tube and the center of the gear, and the heating tube rotates around the center of the gear. A fixing groove is provided on the end face of the mounting block, and a fixing block engages within the fixing groove. A placement plate is fixedly connected to the outer wall of the fixing block, and multiple placement holes are circumferentially distributed on the outer wall of the placement plate. A drive mechanism for rotating the multiple heating tubes is installed inside the hot air duct.

[0006] Preferably, the driving mechanism includes a second gear rotatably connected inside the hot air duct, and an annular rack is provided at the bottom of the hot air duct, the annular rack meshing with the second gear and multiple sets of gears.

[0007] Preferably, a guide tube is installed at the bottom of the hot air duct, and multiple sets of guide pipes are provided on the outer wall of the guide tube. One end of the guide pipe is connected to the inner part of its adjacent rotary joint. A hot air blower is fixedly connected to the outer wall of the guide tube, and the air outlet of the hot air blower is connected to the inside of the guide tube.

[0008] Preferably, each set of placement holes has a sliding groove through both sides, and a sliding sleeve is slidably connected in each sliding groove. The sliding sleeve extends through the sliding groove into the placement hole, and a clamping plate is fixedly connected to the end of the sliding sleeve. The inner and outer walls of the clamping plate are both arc-shaped.

[0009] Preferably, each set of the sliding grooves is fixedly connected to a fixed rod inside, the sliding sleeve is slidably connected to the outer wall of the fixed rod, and a spring is installed inside the sliding sleeve, with both ends of the spring being fixedly connected to the fixed rod and the inner wall of the sliding sleeve, respectively.

[0010] Preferably, a servo motor is fixedly connected to the bottom of the hot air duct, the output shaft of the servo motor is coaxially fixedly connected to the gear, and multiple sets of support legs are provided at the bottom of the hot air duct.

[0011] This utility model has the following beneficial effects: 1. This utility model uses components such as gear one and rotary joint to enable the L-shaped heating tube to rotate around the axis of gear one, so that the hot air sprayed by the hot air blower can evenly cover the surface of the condenser tube from multiple angles. Compared with the traditional single-sided or double-sided hot air heating method, this device can effectively cover the back of complex pipes, curved parts and narrow areas, completely eliminate heating dead angles, solve the problem of uneven shrinkage of heat shrink tubing, and improve the wrapping quality and sealing performance.

[0012] 2. This utility model uses components such as a sliding sleeve and a spring to adapt to condenser tubes of different diameters by utilizing the elastic force of the spring itself, ensuring stable clamping without damaging the pipe surface. At the same time, the servo motor drives multiple sets of gears to rotate synchronously through the meshing of gear two and the ring rack, realizing the synchronous movement of the heating tube and avoiding heating deviation caused by asynchronous transmission. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the heat shrink tubing shrink heating station for the condenser tube proposed in this utility model. Figure 2 for Figure 1 Structural diagram.

[0014] Figure 3 for Figure 1 Schematic diagram of cross-section structure.

[0015] Figure 4 for Figure 1 A structural diagram showing the placement of components such as the plate and fixing block.

[0016] Figure 5 for Figure 4 Schematic diagram of components such as the clamping plate and sliding sleeve.

[0017] Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Hot air duct; 2. Support leg; 3. Mounting block; 4. Servo motor; 5. Air guide tube; 6. Hot air blower; 7. Air guide pipe; 8. Fixing groove; 9. Gear 1; 10. Gear 2; 11. Rotary joint; 12. Ring rack; 13. Heating tube; 14. Placement plate; 15. Placement hole; 16. Clamping plate; 17. Slide groove; 18. Fixing rod; 19. Sliding sleeve; 20. Spring; 21. Fixing block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-6 The heat shrink tubing shrink heating station for condenser tubes includes a hot air duct 1. The end face of the hot air duct 1 is open. A mounting block 3 is set at the axis of the hot air duct 1. Multiple sets of gears 9 are distributed around the inner circumference of the hot air duct 1. Rotary joints 11 are set at the axis of each set of gears 9. A heating tube 13 is installed at the other end of each rotary joint 11. The outer wall of the heating tube 13 is L-shaped. Multiple sets of through holes are opened through the outer wall of the vertical section of the L-shape and are all connected to the inside of the rotary joint 11. There is a certain gap between the vertical section of the heating tube 13 and the axis of the gear 9, and it rotates around the axis of the gear 9. A fixing groove 8 is opened on the end face of the mounting block 3. A fixing block 21 is engaged in the fixing groove 8. A placement plate 14 is fixedly connected to the outer wall of the fixing block 21. Multiple sets of placement holes 15 are opened on the outer wall of the placement plate 14 and are distributed around the circumference. A drive mechanism for driving the multiple sets of heating tubes 13 to rotate is installed inside the hot air duct 1. Furthermore, through the linkage design of gear 9 and rotary joint 11, heating tube 13 can rotate around the gear axis, enabling hot air to cover the pipe surface from multiple angles, especially for narrow areas such as bends or the back side, solving the problem of uneven heating on one side in traditional methods. It should be noted that the placement hole 15 and gear 9 are on the same axis, thus ensuring that heating tube 13 rotates around the axis of condenser tube.

[0021] The drive mechanism includes a second gear 10 rotatably connected inside the hot air duct 1. An annular rack 12 is provided at the bottom of the hot air duct 1. The annular rack 12 meshes with the second gear 10 and multiple sets of gears 9. Furthermore, a single power source can synchronously drive multiple sets of gears 9 to rotate, ensuring that all heating tubes 13 move synchronously, avoiding heating deviations caused by asynchronous transmission, and improving the consistency of hot air coverage.

[0022] A guide tube 5 is installed at the bottom of the hot air duct 1. Multiple sets of guide tubes 7 are provided on the outer wall of the guide tube 5. One end of the guide tube 7 is connected to the adjacent rotary joint 11. A hot air blower 6 is fixedly connected to the outer wall of the guide tube 5. The air outlet of the hot air blower 6 is connected to the inside of the guide tube 5. Furthermore, the flow-dividing design of the air duct 5 and the air pipe 7 evenly distributes the hot air generated by the hot air blower 6 to each rotary joint 11, and blows the hot air out through the heating pipe 13 through the rotary joint 11.

[0023] Each set of placement holes 15 has a sliding groove 17 through both sides, and a sliding sleeve 19 is slidably connected in the sliding groove 17. The sliding sleeve 19 extends through the sliding groove 17 into the interior of the placement hole 15. A clamping plate 16 is fixedly connected to the end of the sliding sleeve 19. The inner and outer walls of the clamping plate 16 are both arc-shaped. Furthermore, the sliding fit design of the arc-shaped clamp 16 and the sliding sleeve 19 can adapt to condenser tubes of different diameters, and the sliding sleeve 19 can quickly clamp and release by moving within the sliding groove 17.

[0024] Each set of slide grooves 17 is fixedly connected to a fixed rod 18, and a slide sleeve 19 is slidably connected to the outer wall of the fixed rod 18. A spring 20 is installed inside the slide sleeve 19, and the two ends of the spring 20 are fixedly connected to the fixed rod 18 and the inner wall of the slide sleeve 19, respectively. Furthermore, the elastic buffer design of spring 20 can automatically adjust the clamping force of clamp 16 on the pipe, avoiding rigid clamping that could cause pipe deformation or surface scratches.

[0025] A servo motor 4 is fixedly connected to the bottom of the hot air duct 1. The output shaft of the servo motor 4 is coaxially fixedly connected to the gear 10. Multiple sets of support legs 2 are provided at the bottom of the hot air duct 1.

[0026] In this utility model, when the device is used, the operator first inserts the condenser tube with heat shrink tubing into the placement hole 15 of the placement plate 14. Through the cooperation of the sliding sleeve 19 in the sliding groove 17 and the arc-shaped clamping plate 16, the spring 20 pushes the sliding sleeve 19 to slide along the fixed rod 18, so that the clamping plate 16 automatically clamps the condenser tube. The elastic design of the arc-shaped clamping plate 16 can adapt to condenser tubes of different diameters, ensuring that the clamping is stable and does not damage the surface of the pipe.

[0027] After the equipment is started, the servo motor 4 begins to run, driving gear 10 to rotate. Gear 10 meshes with the annular rack 12 at the bottom of the hot air duct 1, further driving multiple circumferentially distributed gears 9 to rotate synchronously. Gear 9 drives the L-shaped heating tube 13 to rotate around its axis through the rotary joint 11. Multiple sets of through holes are opened on the outer wall of the vertical section of the heating tube 13, which are connected to the inside of the rotary joint 11, ensuring that hot air can be sprayed out from different angles.

[0028] At the same time, the hot air generated by the hot air blower 6 is distributed to multiple sets of air ducts 7 through the air guide duct 5, and is delivered to the heating tube 13 through the rotary joint 11. As the heating tube 13 continuously changes the direction of hot air jet during rotation, the hot air can cover the back of the condenser tube, the curved parts and narrow areas, completely eliminating the dead angle problem caused by traditional single-sided or double-sided hot air heating.

[0029] After heating, the heat shrink tubing tightly wraps around the surface of the condenser tube under the action of hot air, forming a uniform insulating and protective layer. The operator can manually release the clamp 16 and quickly remove the treated condenser tube by sliding the sliding sleeve 19 in the reverse direction within the sliding groove 17.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A heat shrink tubing shrink heating station for condenser tubes, comprising a hot air duct (1), characterized in that, The hot air duct (1) has an open end face. A mounting block (3) is provided at the axis of the hot air duct (1). Multiple sets of gears (9) are distributed around the inner circumference of the hot air duct (1). A rotary joint (11) is provided at the axis of each set of gears (9). A heating tube (13) is installed at the other end of each rotary joint (11). The outer wall of the heating tube (13) is L-shaped. Multiple through holes are opened through the outer wall of the vertical section of the L-shape, and all of them are connected to the inside of the rotary joint (11). There is a certain gap between the vertical section of the heat pipe (13) and the axis of gear one (9), and it rotates around the axis of gear one (9). The end face of the mounting block (3) is provided with a fixing groove (8), and a fixing block (21) is engaged in the fixing groove (8). A placement plate (14) is fixedly connected to the outer wall of the fixing block (21). Multiple sets of placement holes (15) are opened on the outer wall of the placement plate (14) and are distributed circumferentially. A drive mechanism for driving multiple sets of heating pipes (13) to rotate is installed inside the hot air duct (1).

2. The condenser tube heat shrink tubing shrink heating station according to claim 1, characterized in that, The driving mechanism includes a second gear (10) rotatably connected inside the hot air duct (1). A ring rack (12) is provided at the bottom of the hot air duct (1). The ring rack (12) meshes with the second gear (10) and multiple sets of gears (9).

3. The condenser tube heat shrink tubing shrink heating station according to claim 2, characterized in that, The bottom of the hot air duct (1) is equipped with an air guide duct (5). The outer wall of the air guide duct (5) is provided with multiple sets of air guide pipes (7). One end of the air guide pipe (7) is connected to the adjacent rotary joint (11). A hot air blower (6) is fixedly connected to the outer wall of the air guide duct (5). The air outlet of the hot air blower (6) is connected to the inside of the air guide duct (5).

4. The condenser tube heat shrink tubing shrink heating station according to claim 3, characterized in that, Each set of placement holes (15) has a sliding groove (17) through both sides. A sliding sleeve (19) is slidably connected in the sliding groove (17). The sliding sleeve (19) extends through the sliding groove (17) into the placement hole (15). A clamping plate (16) is fixedly connected to the end of the sliding sleeve (19). The inner and outer walls of the clamping plate (16) are both arc-shaped.

5. The condenser tube heat shrink tubing shrink heating station according to claim 4, characterized in that, Each set of the sliding grooves (17) is fixedly connected to a fixed rod (18), and the sliding sleeve (19) is slidably connected to the outer wall of the fixed rod (18). A spring (20) is installed inside the sliding sleeve (19), and the two ends of the spring (20) are fixedly connected to the fixed rod (18) and the inner wall of the sliding sleeve (19) respectively.

6. The condenser tube heat shrink tubing shrink heating station according to claim 5, characterized in that, The bottom of the hot air duct (1) is fixedly connected to a servo motor (4), the output shaft of the servo motor (4) is coaxially fixedly connected to the gear two (10), and the bottom of the hot air duct (1) is provided with multiple sets of support legs (2).

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