Heating structure wound by multiple layers of reinforcing bands

Abstract

The heating structure comprises a fixing frame, a supporting structure is arranged at the end of the fixing frame, an inclined plate and a first heating device are installed on the supporting structure, a roller is arranged at the top of the inclined plate, a plurality of vertical rods are arranged in the first heating device, and the reinforcing belts penetrate through the vertical rods and turn over by 90 degrees; a second heating device and a third heating device are arranged in the fixing frame and are respectively used for heating the pipe body and combining the reinforcing belt with the pipe body; the first heating device is used for heating the reinforcing belt. Hot blowing preheating is conducted, specifically, a first heating device guides the reinforcing belt to turn over by 90 degrees through a vertical rod and preheats the reinforcing belt, and internal stress of the material is eliminated; second heating devices are evenly distributed in the circumferential direction, the temperature is adjustable in a segmented mode, it is ensured that the pipe body is evenly heated, and deformation is avoided; and infrared curing combination: a third heating device adopts an infrared lamp tube to directionally radiate the combination part of the reinforcing band and the tube body, so that rapid curing is realized, and the interlayer bonding strength is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline reinforcement material processing, and particularly relates to a heating structure with multilayer reinforcement belt winding. Background Art

[0002] In the field of industrial pipeline manufacturing, the reinforcement belt winding technology is a key process for improving the mechanical properties of the pipe body. In the prior art, most winding devices adopt a single-layer winding structure, resulting in low production efficiency and insufficient interfacial bonding strength, making it difficult to meet the requirements of high-strength pipelines. Although some improved solutions introduce a heating function to enhance the bonding effect, there are still significant defects: some devices introduce a heating function, but the heating method is single, and it is difficult to achieve multi-segment precise temperature control bonding between the pipe body and the reinforcement belt. Therefore, there is an urgent need for a multi-layer winding device with an integrated modular design, multi-segment precise heating, and efficient path guidance to solve the bottlenecks in efficiency, strength, and process controllability in the prior art. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems of low winding efficiency, insufficient interfacial bonding strength, and single heating control in the prior art, and to propose a heating structure with multilayer reinforcement belt winding.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A heating structure with multilayer reinforcement belt winding, including a fixed frame. A support structure is provided at the end of the fixed frame. An inclined plate and a first heating device are installed on the support structure. A roller is provided at the top of the inclined plate. A plurality of vertical rods are provided in the first heating device, and the reinforcement belt passes through the vertical rods and is flipped by 90°.

[0006] A second heating device and a third heating device are provided inside the fixed frame, which are respectively used for heating the pipe body and the bonding of the reinforcement belt and the pipe body.

[0007] The first heating device is used for heating the reinforcement belt.

[0008] The second heating device is used for heating the pipe body.

[0009] The third heating device is used for heating the reinforcement belt attached to the pipe body.

[0010] As a further solution of the present invention: The first heating device is a hot air blowing heating device.

[0011] As a further solution of the present invention: The second heating device is a ceramic chip heating device.

[0012] As a further solution of the present invention: The second heating device is evenly distributed circumferentially around the pipe body, and the heating temperature can be controlled in segments.

[0013] As a further solution of the present invention: the third heating device is an infrared lamp tube heating device.

[0014] As a further solution of the present invention: the included angle between the inclined plate and the horizontal plane is 30° - 80°.

[0015] As a further solution of the present invention: the outer surface of the roller is a smooth surface.

[0016] As a further solution of the present invention: the first heating device can also be an electromagnetic induction coil group, and the coil spacing is adjusted in a negative correlation with the conductivity of the reinforcing tape to achieve non-contact Joule heating.

[0017] As a further solution of the present invention: the second heating device can also be a carbon fiber heating element array, the diameter of a single fiber thereof is 5 - 8 μm, and it is obliquely woven at 45° to form a three-dimensional heat conduction network, and the surface is covered with a silicon nitride insulating layer.

[0018] As a further solution of the present invention: the third heating device can also be a microwave resonator cavity, and a spiral waveguide structure is arranged inside the cavity.

[0019] Advantages of the present invention: This application conducts a three-stage heating treatment. The first-stage heating is to preheat the tube to facilitate the adhesion of the tube and the tape. The second-stage heating is to heat multiple tapes to facilitate the direct adhesion of the tapes to each other. The third-stage heating is to further ensure the adhesion of the tape and the tube. Thereby improving the bonding effect between the tube body and the reinforcing tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic plan view of the total device;

[0022] Figure 2 It is a schematic structural view when the present invention is working;

[0023] Figure 3 It is a schematic partial structural view of the present invention;

[0024] Figure 4 It is a schematic structural view of the first heating device of the present invention;

[0025] Figure 5 It is a schematic view of the positions where multiple reinforcing tapes are arranged in the present invention;

[0026] Figures 6 to 9 It is a schematic structural view of the tape feeding device of the present invention.

[0027] In the figure: 1. Fixed frame; 2-1. First tape placing device; 2-2. Second tape placing device; 2-3. Third tape placing device; 21. Support; 22. Shaft; 23. Driving member; 231. Gear; 241. Cylinder; 242. Disk-shaped body; 25. Tooth ring; 261. First buckle plate; 262. Second buckle plate; 263. Groove; 3-1. First group of rollers; 3-2. Second group of rollers; 3-3. Third group of rollers; 3-4. Fourth group of rollers; 41. Inclined plate; 42. Roller; 5. First heating device; 51. Upright rod; 6. Support structure; 7. Reinforcing belt; 8. Second heating device; 9. Third heating device; 10. Pipe body. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1. Please refer to Figures 1 - 4 As shown, the present invention is a heating structure for winding a multi-layer reinforcing belt, including a fixed frame 1. A support structure 6 is provided at the end of the fixed frame 1. An inclined plate 41 and a first heating device 5 are installed on the support structure 6. A roller 42 is provided at the top of the inclined plate 41. A plurality of upright rods 51 are provided in the first heating device 5. The reinforcing belt 7 passes through the upright rods 51 and is turned over at 90°.

[0030] A second heating device 8 is provided inside the fixed frame 1. The second heating device 8 is used to heat the pipe body 10. The third heating device 9 can heat the reinforcing belt 7 and the pipe body 10 so that the reinforcing belt 7 is combined with the pipe body 10.

[0031] The first heating device 5 is used to heat the reinforcing belt 7.

[0032] The second heating device 8 is used to heat the pipe body 10.

[0033] The third heating device 9 is used to heat the reinforcing belt 7 attached to the pipe body 10.

[0034] In another embodiment, the first heating device 5 is a hot air blowing heating device.

[0035] In another embodiment, the second heating device 8 is a ceramic sheet heating device.

[0036] In another embodiment, the second heating device 8 is circumferentially and uniformly distributed around the pipe body 10, and the heating temperature can be controlled in sections.

[0037] In another embodiment, the third heating device 9 is an infrared lamp heating device.

[0038] In another embodiment, the included angle between the inclined plate 41 and the horizontal plane is 30° - 80°.

[0039] In another embodiment, the outer surface of the roller 42 is a smooth surface.

[0040] In another embodiment, the first heating device 5 can also be an electromagnetic induction coil group, and the coil spacing is adjusted in a negative correlation with the conductivity of the reinforcing belt 7 to achieve non-contact Joule heating.

[0041] In another embodiment, the second heating device 8 can also be a carbon fiber heating element array. The diameter of each single fiber is 5 - 8 μm, and it is woven obliquely at 45° to form a three-dimensional heat conduction network, with a silicon nitride insulating layer covering the surface.

[0042] In another embodiment, the third heating device 9 can also be a microwave resonant cavity, and a spiral waveguide structure is arranged inside the cavity.

[0043] Embodiment 2. Please refer to Figures 1 - 5 As shown, on the basis of the above embodiments, the assembly further includes a fixing frame 1 and multiple groups of tape feeding devices. The cross-section of the fixing frame 1 is a polygonal structure;

[0044] Multiple groups of the tape feeding devices are all arranged on each outer surface of the fixing frame 1, and multiple groups of the tape feeding devices are arranged staggeredly horizontally;

[0045] Multiple groups of roller sets arranged staggeredly horizontally, and the roller sets are used to guide the path of the reinforcing belt 7;

[0046] A support structure 6 is arranged at the end of the fixing frame 1. An inclined plate 41 and a first heating device 5 are installed on the support structure 6. A roller 42 is arranged at the top of the inclined plate 41. Multiple vertical rods 51 are arranged inside the first heating device 5, and the reinforcing belt 7 passes through the vertical rods 51 and is turned over by 90°;

[0047] A second heating device 8 is arranged inside the fixing frame 1. The second heating device 8 is used to heat the pipe body 10. The third heating device 9 can heat the reinforcing belt 7 and the pipe body 10 so that the reinforcing belt 7 is combined with the pipe body 10.

[0048] Embodiment 3. Please refer to Figures 1 - 5 As shown, on the basis of the above embodiments, the assembly further includes a fixing frame 1 and multiple groups of tape feeding devices. The cross-section of the fixing frame 1 is a polygonal structure, and specifically, the cross-section of the fixing frame is a regular hexagon structure;

[0049] Multiple sets of the tape feeding devices are arranged on each outer surface of the fixing frame 1, and multiple sets of the tape feeding devices are arranged in a horizontally staggered manner; specifically, three sets of tape feeding devices are arranged on each outer surface of the fixing frame 1. The three sets of tape feeding devices are respectively a first set of tape feeding device 2-1, a second set of tape feeding device 2-2, and a third set of tape feeding device 2-3, and the three sets of tape feeding devices are arranged in a horizontally staggered manner.

[0050] Multiple sets of roller groups arranged in a horizontal dislocation manner, and the roller groups are used to guide the path of the reinforcing tape 7;

[0051] A support structure 6 is provided at the end of the fixing frame 1, an inclined plate 41 and a first heating device 5 are installed on the support structure 6, a roller 42 is provided at the top of the inclined plate 41, multiple vertical rods 51 are arranged inside the first heating device 5, and the reinforcing tape 7 passes through the vertical rods 51 and is turned over at 90°;

[0052] A second heating device 8 is arranged inside the fixing frame 1, the second heating device 8 is used to heat the pipe body 10, and the third heating device 9 can heat the reinforcing tape 7 and the pipe body 10 to make the reinforcing tape 7 and the pipe body 10 combined.

[0053] Example 4, please refer to Figures 1 - 5 As shown, on the basis of the above embodiments, the assembly further includes a fixing frame 1 and multiple sets of tape feeding devices. The cross-section of the fixing frame 1 is a polygonal structure, and specifically, the cross-section of the fixing frame is a regular hexagon structure;

[0054] Multiple sets of the tape feeding devices are arranged on each outer surface of the fixing frame 1, and multiple sets of the tape feeding devices are arranged in a horizontally staggered manner; specifically, three sets of tape feeding devices are arranged on each outer surface of the fixing frame 1. The three sets of tape feeding devices are respectively a first set of tape feeding device 2-1, a second set of tape feeding device 2-2, and a third set of tape feeding device 2-3, and the three sets of tape feeding devices are arranged in a horizontally staggered manner.

[0055] Multiple sets of roller groups arranged in a horizontal dislocation manner, and the roller groups are used to guide the path of the reinforcing tape 7;

[0056] A support structure 6 is provided at the end of the fixing frame 1, an inclined plate 41 and a first heating device 5 are installed on the support structure 6, a roller 42 is provided at the top of the inclined plate 41, multiple vertical rods 51 are arranged inside the first heating device 5, and the reinforcing tape 7 passes through the vertical rods 51 and is turned over at 90°;

[0057] A second heating device 8 is arranged inside the fixing frame 1, the second heating device 8 is used to heat the pipe body 10, and the third heating device 9 can heat the reinforcing tape 7 and the pipe body 10 to make the reinforcing tape 7 and the pipe body 10 combined.

[0058] The second heating device 8 is used to heat the pipe body 10, and the second heating device 8 is a ceramic sheet heating device.

[0059] The second heating device 8 is circumferentially and uniformly distributed around the tube body 10, and the heating temperature can be controlled in sections.

[0060] The third heating device 9 is used to heat the reinforcing belt 7 attached to the tube body 10, and the third heating device 9 is an infrared lamp heating device.

[0061] The first heating device 5 is a hot air blower heating device.

[0062] Embodiment 5, please refer to Figures 1 - 5 As shown, on the basis of the above embodiments, the assembly further includes a fixing frame 1 and multiple groups of tape feeding devices. The cross-section of the fixing frame 1 is a polygonal structure, and specifically, the cross-section of the fixing frame is a regular hexagon structure;

[0063] Multiple groups of the tape feeding devices are all arranged on each outer surface of the fixing frame 1, and multiple groups of the tape feeding devices are arranged in a horizontally staggered manner; specifically, three groups of tape feeding devices are arranged on each outer surface of the fixing frame 1. The three groups of tape feeding devices are the first group of tape feeding devices 2-1, the second group of tape feeding devices 2-2, and the third group of tape feeding devices 2-3, and the three groups of tape feeding devices are arranged in a horizontally staggered manner.

[0064] Multiple groups of laterally misaligned roller groups, and the roller groups are used to guide the path of the reinforcing belt 7;

[0065] A support structure 6 is provided at the end of the fixing frame 1. An inclined plate 41 and a first heating device 5 are installed on the support structure 6. A roller 42 is provided at the top of the inclined plate 41. Multiple vertical rods 51 are provided inside the first heating device 5, and the reinforcing belt 7 passes through the vertical rods 51 and is turned by 90°; the included angle between the inclined plate 41 and the horizontal plane is 30°-80°. The outer surface of the roller 42 is a smooth surface.

[0066] A second heating device 8 is provided inside the fixing frame 1. The second heating device 8 is used to heat the tube body 10, and the third heating device 9 can heat the reinforcing belt 7 and the tube body 10 to make the reinforcing belt 7 and the tube body 10 combined.

[0067] The second heating device 8 is used to heat the tube body 10, and the second heating device 8 is a ceramic chip heating device.

[0068] The second heating device 8 is circumferentially and uniformly distributed around the tube body 10, and the heating temperature can be controlled in sections.

[0069] The third heating device 9 is used to heat the reinforcing belt 7 attached to the tube body 10, and the third heating device 9 is an infrared lamp heating device.

[0070] The first heating device 5 is a hot air blower heating device.

[0071] Embodiment Six. Please refer to Figures 1 - 5 As shown, on the basis of the above embodiments, the assembly further includes a fixing frame and a plurality of tape feeding devices. The cross-section of the fixing frame is a polygonal structure, and the plurality of tape feeding devices are detachably mounted on a plurality of outer surfaces of the fixing frame.

[0072] Specifically, the cross-section of the fixing frame is a regular hexagon structure.

[0073] On each outer surface of the fixing frame, three groups of tape feeding devices are provided. The three groups of tape feeding devices are, in order from front to back, the first group of tape feeding device 2-1, the second group of tape feeding device 2-2, and the third group of tape feeding device 2-3. The three groups of tape feeding devices are arranged horizontally staggered.

[0074] On the fixing frame 1, at the positions of the three winding devices, a first group of rollers 3-1, a second group of rollers 3-2, a third group of rollers 3-3, and a fourth group of rollers 3-4 are horizontally arranged in sequence from front to back. The reinforcing tape wound in the first group of tape feeding device 2-1 passes through the first group of rollers 3-1, the second group of rollers 3-2, the third group of rollers 3-3, and the fourth group of rollers 3-4 in sequence. The reinforcing tape wound in the second group of tape feeding device 2-2 passes through the second group of rollers 3-2, the third group of rollers 3-3, and the fourth group of rollers 3-4 in sequence. The reinforcing tape wound in the third group of tape feeding device 2-3 passes through the third group of rollers 3-3 and the fourth group of rollers 3-4 in sequence.

[0075] The number of each group of tape feeding devices is 2, and the reinforcing tapes in the three groups of tape feeding devices are arranged in sequence from left to right.

[0076] A support structure 6 is provided at the end of the fixing frame. An inclined plate 41 is fixed on the support structure 6. A roller 42 is rotatably connected to the top of the inclined plate 41. A first heating device 5 for heating the reinforcing tape is installed at the bottom of the inclined plate 41. A plurality of vertical rods 51 are arranged horizontally in a line inside the first heating device 5. The plurality of vertical rods 51 are arranged vertically. The number of the vertical rods 51 is 6, which is the same as the number of the tape feeding devices on a single surface of the fixing frame 1. A plurality of the reinforcing tapes pass through the vertical rods 51 one by one. The reinforcing tape between the roller 42 and the vertical rods 51 is turned over by 90° during the transition between the two.

[0077] Embodiment Seven. Please refer to Figures 1 - 5 As shown, on the basis of the above embodiments, the assembly further includes that a hole is formed through the inside of the fixing frame 1. A second heating device 8 for heating the pipe body 10 is arranged in the hole. A third heating device 9 is arranged at the discharging position of the fixing frame 1. The third heating device 9 is used for heating the reinforcing tape 7 and the pipe body 10 so that the reinforcing tape 7 is combined with the pipe body 10.

[0078] The first heating device 5 can be a hot air blowing heating device.

[0079] The second heating device 8 may be a ceramic chip heating device.

[0080] The third heating device 9 may be an infrared lamp tube heating device.

[0081] Based on the above embodiments, the first heating device 5 may also be an electromagnetic induction coil group, whose operating frequency is 20 - 50 kHz, and the coil spacing is adjusted in a negative correlation with the conductivity of the reinforcing strip 7 to achieve non-contact Joule heating.

[0082] The second heating device 8 may also be a carbon fiber heating element array, with a single fiber diameter of 5 - 8 μm, woven obliquely at 45° to form a three-dimensional heat conduction network, and the surface is covered with a silicon nitride insulating layer.

[0083] The third heating device 9 may also be a microwave resonant cavity, with an operating frequency of 2.45 GHz, a spiral waveguide structure is arranged inside the cavity, and the dielectric loss characteristics of the reinforcing strip 7 are automatically matched through standing wave ratio detection.

[0084] Embodiment Eight, based on the above embodiments, please refer to Figures 1 - 9 As shown, the tape feeding device includes a bracket 21 and a driving member 23. The driving member 23 is installed on the bracket 21. A fastener is detachably installed on the bracket 21. A shaft 22 is horizontally buckled on the bracket 21 through the fastener. A cylinder body 241 is rotatably connected to the shaft 22. At least two disc-shaped bodies 242 are symmetrically sleeved on the outer wall of the barrel body 241. A winding cavity is formed by a distance between the two disc-shaped bodies 242. The reinforcing strip can be wound and stored in the winding cavity;

[0085] The driving member 23 is used to drive the cylinder body 241 to rotate on the shaft 22.

[0086] A toothed ring 25 is installed on the cylinder body 241, and a gear 231 is installed at the output end of the driving member 23. The toothed ring 25 meshes with the gear 231.

[0087] Embodiment Nine, based on the above embodiments, please refer to Figures 1 - 9 As shown, the fastener of the bracket 21 includes two buckles with the same structure. The two buckles are rotatably connected to each other through a rotating shaft. One of the buckles can be embedded in the top of the bracket 21, and a groove 263 with the same radian as the shaft 22 is formed on the buckle.

[0088] A bearing is also arranged at the connection between the cylinder body 241 and the shaft 22. The cylinder body 241 is rotatably connected to the shaft 22 through the bearing.

[0089] Summarize the advantages of the present invention according to the content of Embodiments One to Eight:

[0090] Modular and efficient winding: Using a polygonal fixing frame 1 and a detachable tape feeding device group, supporting the horizontal staggered arrangement of multiple groups of devices, not only realizing multi-layer synchronous winding, but also quickly expanding the number of devices according to requirements, greatly improving production efficiency and device flexibility;

[0091] Multi-segment precise temperature control:

[0092] Hot air preheating: The first heating device 5 guides and enhances the 90° flipping and preheating of the reinforcing tape through a vertical rod;

[0093] Ceramic chip segmented heating: The second heating device 8 is circumferentially evenly distributed and the temperature is segmentally adjustable to ensure uniform heating of the pipe body;

[0094] Infrared curing combination: The third heating device 9 uses infrared lamps to radiate the joint of the reinforcing tape 7 and the pipe body 10 directionally to enhance the interlayer bonding strength.

[0095] Precise path guidance: The tension and direction of the reinforcing tape are precisely controlled through multiple groups of horizontally staggered roller systems (such as the first to fourth roller groups), combined with the design of the inclined plate anti-slip roller, completely avoiding winding deviation or loosening, and ensuring the geometric consistency of the finished product;

[0096] Structural optimization and convenient maintenance: The tape feeding device adopts a buckle plate shaft connection and a toothed ring drive structure, which is convenient for quick disassembly, maintenance, reduces downtime, and at the same time the bearing design reduces friction loss and extends the equipment life.

[0097] Working principle description:

[0098] The fixing frame 1 with a regular hexagon structure has a total of 6 faces, and 6 tape feeding devices are installed on each face.

[0099] The 6 tape feeding devices will supply 6 reinforcing tapes 7. The 6 reinforcing tapes 7 pass from the fourth group of rollers 3-4 to the roller 42. It should be noted that the 6 tape feeding devices are evenly divided into two teams, and the two teams arrange their tape feeding devices in a stepped manner. So finally, the 6 reinforcing tapes 7 are arranged equidistantly in a straight line at the roller 42 and pass through it.

[0100] After the 6 reinforcing tapes 7 in the roller 42 are respectively placed on the vertical rods 51 in the first heating device 5 and tightened, the reinforcing tapes 7 here will be flipped 90° along with the tension and finally pass out from the vertical rods 51.

[0101] When the 6 reinforcing tapes 7 are in the first heating device 5, they will undergo the first heating treatment. Then when the 6 reinforcing tapes 7 are wound around the pipe body 10, the 6 heated reinforcing tapes 7 will be integrated and wound around the pipe body 10. Among them, the first heating device 5 heats the reinforcing tapes to facilitate the connection between the tapes.

[0102] When the reinforcing band 7 has not been wound around the pipe body 10 yet, the second heating device 8 will first heat the pipe body 10 to enhance the bonding between the reinforcing band 7 and the pipe body 10. Among them, the second heating device 8 heats the pipe body 10 to facilitate the adhesion between the reinforcing band 7 and the pipe body 10.

[0103] After the reinforcing band 7 is wound around the pipe body 10, the third heating device 9 will heat the reinforcing band 7 wound around the pipe body 10 again, so that the reinforcing bands 7 wound around the pipe body 10 on the six surfaces of the fixing frame 1 are combined. Among them, the third heating device 9 is to further enhance the adhesion between the reinforcing band 7 and the pipe body 10.

[0104] Briefly speaking, the six independent reinforcing bands 7 on each surface will be combined, and finally the combined reinforcing bands 7 on each surface will be combined with each other again to wrap the pipe body 10.

[0105] It should be noted here that when the cross-section of the fixing frame 1 includes but is not limited to six surfaces, it can also be two, three, four, five, six, seven, eight, nine, ten, eleven surfaces, etc.

[0106] It should also be noted that the number of the third heating devices 9 can be multiple, and can be increased, decreased or removed according to actual needs.

[0107] The first heating device 5, the second heating device 8, and the third heating device 9 can be one of a hot air blowing heating device, a ceramic chip heating device, an infrared lamp tube heating device, or an electromagnetic induction coil heating device, or a combination of multiple of them.

[0108] The above has described an embodiment of the present invention in detail, but the described content is only a preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A multi-layer reinforced belt-wound heating structure, comprising a fixing frame (1), characterized in that, The end of the fixing frame (1) is provided with a support structure (6). An inclined plate (41) and a first heating device (5) are installed on the support structure (6). A roller (42) is provided at the top of the inclined plate (41). A plurality of vertical rods (51) are arranged in the first heating device (5). The reinforcing belt (7) passes through the vertical rods (51) and is turned over at 90°; A second heating device (8) and a third heating device (9) are arranged inside the fixing frame (1) and are respectively used for heating the pipe body (10) and the joint of the reinforcing belt (7) and the pipe body (10); The first heating device (5) is used for heating the reinforcing belt (7); The second heating device (8) is used for heating the pipe body (10); The third heating device (9) is used for heating the reinforcing belt (7) attached to the pipe body (10).

2. The multi-layer reinforced belt-wound heating structure according to claim 1, wherein The first heating device (5) is one or more of a hot air blowing heating device, a ceramic chip heating device, or an infrared lamp tube heating device; 3. The multi-layer reinforced belt-wound heating structure according to claim 1, wherein The second heating device (8) is one or more of a hot air blowing heating device, a ceramic chip heating device, an infrared lamp tube heating device, or an electromagnetic induction coil heating device; 4. A multi-layer reinforced belt-wound heating structure according to claim 3, characterized in that, The second heating device (8) is evenly distributed circumferentially around the pipe body (10), and the heating temperature can be controlled in sections; 5. A multi-layer reinforced belt-wound heating structure according to claim 1, characterized in that, The third heating device (9) is one or more of a hot air blowing heating device, a ceramic chip heating device, an infrared lamp tube heating device, or an electromagnetic induction coil heating device; 6. A multi-layer reinforced belt-wound heating structure according to claim 1, wherein The included angle between the inclined plate (41) and the horizontal plane is 30°-80°; 7. The multi-layer reinforced belt-wound heating structure according to claim 1, characterized in that The outer surface of the roller (42) is a smooth surface; 8. A multi-layer reinforced belt-wound heating structure according to claim 1, characterized in that, The first heating device (5) can also be an electromagnetic induction coil group, and the coil pitch is adjusted negatively correlated with the conductivity of the reinforcing belt (7) to achieve non-contact Joule heating; 9. A multi-layer reinforced belt-wound heating structure according to claim 1, characterized in that, The second heating device (8) can also be a carbon fiber heating element array, the diameter of a single fiber of which is 5-8 μm, and is obliquely woven at 45° to form a three-dimensional heat conduction network, and the surface is covered with a silicon nitride insulating layer; 10. A multi-layer reinforced belt-wound heating structure according to claim 1, characterized in that, The third heating device (9) can also be a microwave resonant cavity, and a spiral waveguide structure is arranged in the cavity.

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