Pipeline anticorrosion rotating heating winding and clamping device

Abstract

The utility model relates to a kind of pipeline anticorrosion rotary heating winding and clamping equipment, including mutually coordinated clamping device and rotary heating winding equipment;Clamping device includes two groups of mainboard and clamping jaw hydraulic device, inner tooth ring track hydraulic device, inner tooth ring track, clamping jaw, rotary heating winding equipment is set between two groups of mainboard, clamping jaw hydraulic device is driven connection with clamping jaw;Inner tooth ring track hydraulic device is driven connection with inner tooth ring track;Rotary heating winding equipment includes arc mounting bracket and is set on arc mounting bracket heat shrink tape feeding heating device, infrared heating device, medium-frequency heating device, power device, power gear;To significantly improve construction efficiency, ensure quality stability and reduce artificial cost and safety risk.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction technology, specifically to a pipeline anti-corrosion rotary heating winding and clamping device, which is applicable to the arrangement of pipeline anti-corrosion heat shrink tape, saving labor costs, improving work efficiency, and ensuring construction quality. Background Technology

[0002] Heat shrinkable tape is a functional material with heat shrinkage properties. When heated, it can shrink radially, thus tightly adhering to the surface of the object being wrapped (such as cable joints and pipe interfaces) to form a continuous and uniform protective layer. It is widely used for the protection of critical parts due to its excellent sealing, corrosion resistance and insulation properties. At present, the construction of heat shrinkable tape on pipelines mainly relies on manual operation: workers need to manually unroll the heat shrinkable tape, heat both ends locally to shrink it initially, and then manually wrap it around the surface of the pipeline, so that it wraps around the circumference of the pipeline and is bonded by the adhesive layer. Finally, the middle section needs to be heated to ensure complete shrinkage and bonding. This method has many drawbacks, namely: (1) excessive reliance on manual labor leads to low winding efficiency and high labor costs; (2) the construction quality is seriously affected by the technical proficiency of the operators and the site conditions, making it difficult to guarantee the consistency and reliability of the protective effect; (3) the high-temperature working environment generated during the heating process also poses a potential threat to the health of the workers, which further reduces the work efficiency of the workers. This invention is proposed based on the above research background, aiming to develop a pipeline anti-corrosion rotary heating winding and clamping device to significantly improve construction efficiency, ensure quality stability, and reduce labor costs and safety risks, which has become an urgent problem to be solved. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a pipe anti-corrosion rotary heating winding and clamping device to significantly improve construction efficiency, ensure quality stability and reduce labor costs and safety risks.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rotary heating winding and clamping device for pipeline corrosion protection includes a clamping device and a rotary heating winding device that cooperate with each other. The clamping device includes two sets of parallel main plates (2) and a clamping claw hydraulic device (5), an internal gear ring track hydraulic device (6), an internal gear ring track (7), and a clamping claw (8) disposed on each set of main plates. The rotary heating winding device is disposed between the two sets of main plates. The clamping claw hydraulic device is driven by the clamping claw for clamping and releasing the pipeline. The internal gear ring track is arranged concentrically with the pipeline. The internal gear ring track hydraulic device is driven by the internal gear ring track for driving the internal gear ring track to open and close. The rotary heating winding device includes an arc-shaped mounting frame and a... The heat shrinkable tape feeding heating device (13), infrared heating device (14), medium frequency heating device (16), power device (17), and power gear (18) are set on the arc-shaped mounting frame. The heat shrinkable tape feeding heating device, infrared heating device, and medium frequency heating device are arranged sequentially along the arc length direction of the arc-shaped mounting frame for feeding heat shrinkable tape, first heating of heat shrinkable tape, second heating of heat shrinkable tape, and heating of the outer wall of the pipe, respectively. The power device is installed on both sides of one end of the arc-shaped mounting frame, and the heat shrinkable tape feeding heating device is set at the other end of the arc-shaped mounting frame. The power gear is installed on the output shaft of the power device and meshes with the internal rack of the corresponding internal gear ring track on the main board.

[0006] As a further optimization of the above scheme, the clamp also includes a lifting device (1) installed between the two sets of main boards. Several L-shaped auxiliary legs (3) are also provided on the outer side of each set of main boards. The vertical plate of the auxiliary leg is bolted to the main board, and the horizontal plate of the auxiliary leg abuts against the outer wall of the pipe for pipe positioning. The clamp includes four clamping claws, and the clamping claws are symmetrically arranged on both sides below the main board. The internal gear ring track includes a circular track formed by a fixed arc track and two movable arc tracks. The two movable arc tracks are symmetrically arranged on both sides of the fixed arc track. The end of the left movable arc track is hinged to one end of the fixed arc track, and one end of the right movable arc track is hinged to the other end of the fixed arc track. The other end of the left movable arc track is movably connected to the other end of the right movable arc track.

[0007] As a further optimization of the above scheme, the clamping claw hydraulic device and the internal gear ring track hydraulic device are both hydraulic telescopic cylinders or pneumatic telescopic cylinders; the power device is a geared motor; the rotary heating winding equipment also includes an auxiliary gear (9), an auxiliary pressing device (10), a pressure roller adjusting device (11), a pressure roller (12), and an auxiliary pulley (15) set on an arc-shaped mounting frame; the auxiliary gear is set in the middle of the arc-shaped mounting frame and can mesh with the internal gear rack of the internal gear ring track; the pressure roller adjusting device and the pressure roller are set in the heat shrink tape feeding heating device, and the pressure roller adjusting device is connected to the pressure roller to adjust the contact pressure of the pressure roller on the heat shrink tape; the auxiliary pressing device is installed at the feed port of the heat shrink tape feeding heating device to assist in pressing the heat shrink tape; the auxiliary pulley is set on the outer peripheral wall of the internal gear ring track and is connected to it in a rolling fit.

[0008] As a further optimization of the above scheme, a vacuum device (4) is also provided on the outside of each group of main boards. The vacuum device is a double impeller high-pressure fan type vacuum pump. The vacuum device is connected to the pressure roller through an air pipe for adsorption, flipping and pressing of the heat shrink tape.

[0009] As a further optimization of the above scheme, the pressure roller (12) is provided with a small hole that is connected to the air pipe of the vacuum device (4) to generate negative pressure on the heat shrink tape and adsorb the heat shrink tape onto the surface of the pressure roller (12).

[0010] As a further optimization of the above scheme, the heat shrinkable tape feeding heating device (13) is provided with a cover plate that can be rotated and closed for checking the heat shrinkable tape feed port.

[0011] As a further optimization of the above scheme, the connection between the clamping claw hydraulic device (5) and the clamping claw (8) is an eccentric shaft. The eccentric shaft is keyed to the clamping claw, and the other end is connected to the clamping claw hydraulic device (5). The hydraulic system can control the opening and closing of the clamping claw (8) by using the lever principle.

[0012] As a further optimization of the above solution, it also includes a detachable support leg (0) connected by bolts or pins below each set of motherboards, and the detachable support leg is also provided with a transverse reinforcing rod connected by bolts or pins.

[0013] As a further optimization of the above scheme, the auxiliary pressing device includes a fixed plate (19) set on the heat shrink tape inlet, and an auxiliary pressure roller (24), an auxiliary pressure roller bracket (25), a guide rod (26) and a telescopic spring (27) set on the fixed plate. The auxiliary pressure roller is set on the auxiliary pressure roller bracket, the guide rod is fixedly set on the fixed plate, the auxiliary pressure roller bracket is slidably set on the guide rod, and the two ends of the telescopic spring are set between the auxiliary pressure roller bracket and the fixed plate to apply the elastic force to press the edge of the heat shrink tape with the auxiliary pressure roller. The pressure roller adjusting device includes a pressure block (20), a spring (21), an electric cylinder (22), a pressure roller connecting block (23) and a bolt support (28). The electric cylinder (22) is driven to connect with the pressure block (20), and the pressure block (20) and the pressure roller connecting block (23) are connected by the spring (21). The pressure roller connecting block connects the pressure roller to drive the pressure roller (12) to move up and down.

[0014] As a further optimization of the above scheme, the heat shrinkable tape feeding and heating device includes a feeding assembly and a heating assembly. The feeding assembly includes a push-pull clamping insert-type clamp (29) set at the feeding port, and a clamping transmission roller (30) and a conveying roller (31) that cooperate with the push-pull clamping insert-type clamp for clamping the heat shrinkable tape. The conveying roller is connected to a motor to drive the heat shrinkable tape to the pressure roller (12). The heating assembly includes several infrared lamps arranged in pairs for the first heating of the heat shrinkable tape to 65-75°C. The infrared heating device (14) includes several infrared heating lamps arranged in pairs for the second heating of the heat shrinkable tape to 60-90°C. The medium frequency heating device (16) is a 60kW medium frequency induction heater for preheating the pipe to 90°C.

[0015] The advantages of this utility model of a rotary heating and winding device for pipe corrosion protection are as follows: The structure is reasonably designed. Driven by a hydraulic device, it can open and close the clamp and the internal gear ring track, saving manpower and resources. It can more accurately close to the designated position and firmly grip the pipe to prevent slippage. The power gear on the rotary heating and winding device meshes with the internal gear ring track on the clamp, and auxiliary pulleys and gears assist in clamping the internal gear ring track, allowing the rotary heating and winding device to run along the internal gear ring track, avoiding misalignment during rotation. The feeding heating device automatically feeds and heats the heat-shrinkable tape to the temperature required to melt the adhesive after the heat-shrinkable tape roll is installed. The pressure roller then compacts the heat-shrinkable tape onto the pipe surface. The infrared heating device keeps the heat-shrinkable tape warm, preventing premature cooling due to low temperatures. The medium-frequency heating device preheats the pipe during operation, ensuring better adhesion between the pipe and the heat-shrinkable tape. All these operations can be completed automatically, greatly saving manpower. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the clamping device structure of a pipe anti-corrosion rotary heating winding and clamping device according to the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of a rotary heating and winding device for pipe corrosion protection, which is a device for pipe corrosion protection and clamping according to the present invention.

[0018] Figure 3 This is a schematic diagram of the overall assembly structure of a pipeline anti-corrosion rotary heating winding and clamping device according to the present invention.

[0019] Figure 4 This is a schematic diagram of the feeding heating device of a pipeline anti-corrosion rotary heating winding and clamping equipment according to the present invention.

[0020] Figure 5 This is a schematic diagram of the internal gear ring track of a pipeline anti-corrosion rotary heating winding and clamping device according to the present invention.

[0021] Figure 6 This is a schematic diagram of the pressure roller adjustment device 11 of a pipeline anti-corrosion rotary heating winding and clamping equipment according to the present invention, wherein the left side view is the front view and the right side view is the side view.

[0022] Figure 7 This is a schematic diagram of the auxiliary pressure roller device 10 of a pipeline anti-corrosion rotary heating winding and clamping equipment according to the present invention.

[0023] Figure 8 This is a schematic diagram of the feeding part of the heat shrink tape feeding and heating device of the pipe anti-corrosion rotary heating winding and clamping equipment of this utility model. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-8 This utility model provides a detailed description of a rotary heating winding and clamping device for pipeline corrosion protection.

[0025] A rotary heating winding and clamping device for pipe corrosion protection includes a clamping device and a rotary heating winding device that cooperate with each other. The clamping device includes two sets of parallel main plates 2 and a clamping claw hydraulic device 5, an internal gear ring track hydraulic device 6, an internal gear ring track 7, and clamping claws 8 disposed on each set of main plates. The rotary heating winding device is disposed between the two sets of main plates. The clamping claw hydraulic device is driven by the clamping claws for clamping and releasing the pipe. The internal gear ring track is arranged concentrically with the pipe, and the internal gear ring track hydraulic device is driven by the internal gear ring track for opening and closing the internal gear ring track. The rotary heating winding device includes an arc-shaped mounting frame and a heat shrinkable tape feeding heating device 13, an infrared heating device 14, and a medium-frequency heating device disposed on the arc-shaped mounting frame. The device comprises 16, 17, and 18. The heat shrinkable tape feeding and heating device, infrared heating device, and medium frequency heating device are sequentially arranged along the arc length of the arc-shaped mounting frame for feeding the heat shrinkable tape, first heating of the heat shrinkable tape, second heating of the heat shrinkable tape, and heating of the outer wall of the pipe, respectively. The power device is installed on both sides of one end of the arc-shaped mounting frame, and the heat shrinkable tape feeding and heating device is located at the other end of the arc-shaped mounting frame. The power gear is installed on the output shaft of the power device and meshes with the inner rack of the corresponding inner gear ring track on the main board. Driven by the power device, the power gear can rotate. As the power gear rotates, the rotary heating and winding equipment can rotate around the inner gear ring track, thereby winding the heated heat shrinkable tape onto the outer wall of the pipe. The clamp also includes a lifting device 1 installed between two sets of main boards. Each set of main boards is provided with several L-shaped auxiliary legs 3 arranged at intervals on the outer side. The vertical plates of the auxiliary legs are bolted to the main boards, and the horizontal plates of the auxiliary legs abut against the outer wall of the pipe for pipe limiting. The clamp includes four clamping claws, which are symmetrically arranged in pairs on both sides below the main boards. The internal gear ring track includes circular tracks B and C formed by a fixed arc track A and two movable arc tracks. The two movable arc tracks are symmetrically arranged on both sides of the fixed arc track. The end of the left movable arc track is hinged to one end of the fixed arc track, and one end of the right movable arc track is hinged to the other end of the fixed arc track. The other end of the left movable arc track is movably connected to the other end of the right movable arc track.The clamping claw hydraulic device and the internal gear ring track hydraulic device are both hydraulic telescopic cylinders or pneumatic telescopic cylinders; the power device is a geared motor; the rotary heating winding equipment also includes an auxiliary gear 9, an auxiliary pressing device 10, a pressure roller adjusting device 11, a pressure roller 12, and an auxiliary pulley 15, all mounted on an arc-shaped mounting frame; the auxiliary gear is located in the middle of the arc-shaped mounting frame and can mesh with the internal gear rack of the internal gear ring track; the pressure roller adjusting device is located inside the heat shrinkable tape feeding heating device, and is connected to the pressure roller to adjust the contact pressure of the pressure roller on the heat shrinkable tape; the auxiliary pressing device is installed at the feed inlet of the heat shrinkable tape feeding heating device to assist in pressing the heat shrinkable tape; the auxiliary pulley is located on the outer peripheral wall of the internal gear rack track and is connected to it in a rolling engagement. A vacuum device 4 is also provided on the outer side of each main board. The vacuum device is a double-impeller high-pressure blower type vacuum pump, and the vacuum device is connected to the pressure roller through an air pipe to adsorb, flip, and press the heat shrinkable tape. The pressure roller 12 has a small hole connected to the air pipe of the vacuum device 4, which is used to generate negative pressure on the heat shrinkable tape to attract the heat shrinkable tape to the surface of the pressure roller 12. The heat shrinkable tape feeding heating device 13 is equipped with a cover plate that can be rotated and closed for checking the heat shrinkable tape feed port. The clamping claw hydraulic device 5 is connected to the clamping claw 8 by an eccentric shaft, which is keyed to the clamping claw. The other end is connected to the clamping claw hydraulic device 5. The hydraulic system can control the opening and closing of the clamping claw 8 by lever principle. It also includes a detachable support leg 0 located below each set of main plates and connected by bolts or pins. The detachable support leg is also equipped with a transverse reinforcing rod connected by bolts or pins. The auxiliary pressing device includes a fixed plate 19 disposed on the heat shrinkable tape inlet, and an auxiliary pressure roller 24, an auxiliary pressure roller bracket 25, a guide rod 26, and a telescopic spring 27 disposed on the fixed plate. The auxiliary pressure roller is disposed on the auxiliary pressure roller bracket, the guide rod is fixedly disposed on the fixed plate, and the auxiliary pressure roller bracket is slidably disposed on the guide rod. The two ends of the telescopic spring are disposed between the auxiliary pressure roller bracket and the fixed plate to apply elastic force to press the edge of the heat shrinkable tape with the auxiliary pressure roller. The pressure roller adjusting device includes a pressure block 20, a spring 21, an electric cylinder 22, a pressure roller connecting block 23, and a bolt support 28. The electric cylinder 22 is drivenly connected to the pressure block 20, and the pressure block 20 is connected to the pressure roller connecting block 23 by the spring 21. The pressure roller connecting block is connected to the pressure roller to drive the pressure roller 12 to move up and down.The heat shrinkable tape feeding and heating device includes a feeding assembly and a heating assembly. The feeding assembly includes a push-pull clamping insert-type clamp 29 located at the feed inlet, and a clamping transmission roller 30 and a conveying roller 31 that cooperate with the push-pull clamping insert-type clamp to clamp the heat shrinkable tape. The conveying roller is connected to a motor to drive the heat shrinkable tape to the pressure roller 12. The heating assembly includes several infrared lamps arranged in pairs to heat the heat shrinkable tape to 65-75°C for the first time. The infrared heating device 14 includes several infrared heating lamps arranged in pairs to heat the heat shrinkable tape to 60-90°C for the second time. The medium-frequency heating device 16 is a 60kW medium-frequency induction heater used to preheat the pipe to 90°C.

[0026] The operation process of the above-mentioned pipe anti-corrosion rotary heating winding and clamping device is as follows:

[0027] Step 1 – Assembly: Arrange the rotary heating winding equipment and the clamp concentrically (that is, install the rotary heating equipment concentrically between the two sets of main boards). The power gear on the rotary heating winding equipment for pipe corrosion protection meshes with the internal gear ring track on the clamp, and the auxiliary pulley is installed in place. At this time, the rotary heating winding equipment for pipe corrosion protection is fixed on the internal gear ring track of the clamp. Then move the rotary heating winding equipment for pipe corrosion protection to a position that does not affect the opening and closing of the internal gear ring.

[0028] Step 2 – Pipe Clamping: Move the assembled rotary heating winding equipment and clamp to the designated position. Connect the hydraulic control system on the clamp to the hydraulic pump station / pneumatic pump station. Use a crane to connect the lifting device to lift the rotary heating winding and clamping equipment for pipe corrosion protection. Then, start the hydraulic pump station / pneumatic pump station to control the opening and closing of the internal gear ring track and clamping claws on the clamp. After both the clamping claws and the internal gear ring track are open, lift the rotary heating winding and clamping equipment for pipe corrosion protection to the designated construction position and lower it until the auxiliary support legs contact the pipe. Start the hydraulic device to close the internal gear ring track and clamping claws.

[0029] Step 3 – Heat Shrink Tape Heating and Wrapping: After clamping the pipe at the construction location, the rotary heating and wrapping equipment for pipe corrosion protection places the heat shrink tape roll, and inserts the end of the heat shrink tape into the feed inlet of the heat shrink tape feeding and heating device. The heat shrink tape roll enters the feeding and heating device and is heated until the hot melt adhesive melts. Passing through the pressure roller connected to the vacuum device, it is attracted and flipped by the pressure roller, pressing the heat shrink tape onto the pipe surface with the adhesive side facing down, expelling air bubbles and compacting it. During this process, an auxiliary pressing device presses the edges of the heat shrink tape to prevent curling. An infrared heating device continuously heats and keeps the heat shrink tape warm to prevent premature cooling due to ambient temperature. A medium-frequency heating device preheats the pipe to a suitable construction temperature, improving the adhesion effect of the heat shrink tape. Driven by the power unit, the power gear rotates, causing the rotary heating and wrapping equipment to rotate around the internal gear ring track, thus wrapping the heated heat shrink tape around the outer wall of the pipe. After the rotary heating and wrapping equipment rotates around the pipe several times to meet the wrapping requirements, the wrapping construction is completed.

[0030] Step 4 – Completion: After the construction is completed, the pipeline anti-corrosion rotary heating winding and clamping equipment is returned to its initial position. The lifting device is pre-connected to the crane to prevent the equipment from falling off. The hydraulic device is activated to open the internal gear ring track and clamping claws. After opening, the equipment is lifted and placed to the next construction position or stored.

[0031] The above description of the embodiments is provided to enable those skilled in the art to understand and apply the present invention. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the embodiments described herein, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A rotary heating winding and clamping device for pipeline corrosion protection, characterized in that: The device includes a clamping device and a rotary heating winding device that cooperate with each other; the clamping device includes two sets of main plates (2) arranged in parallel at intervals and a clamping claw hydraulic device (5), an internal gear ring track hydraulic device (6), an internal gear ring track (7), and a clamping claw (8) arranged on each set of main plates; the rotary heating winding device is arranged between the two sets of main plates; the clamping claw hydraulic device is driven by the clamping claw for clamping and releasing the pipe; the internal gear ring track is arranged concentrically with the pipe; the internal gear ring track hydraulic device is driven by the internal gear ring track for driving the internal gear ring track to open and close; the rotary heating winding device includes an arc-shaped mounting frame and a device arranged on the arc-shaped mounting frame. The device includes a heat shrinkable tape feeding heating device (13), an infrared heating device (14), a medium frequency heating device (16), a power device (17), and a power gear (18). The heat shrinkable tape feeding heating device, the infrared heating device, and the medium frequency heating device are arranged sequentially along the arc length direction of the arc-shaped mounting frame for feeding the heat shrinkable tape, heating the heat shrinkable tape for the first time, heating the heat shrinkable tape for the second time, and heating the outer wall of the pipe. The power device is installed on both sides of one end of the arc-shaped mounting frame, and the heat shrinkable tape feeding heating device is set at the other end of the arc-shaped mounting frame. The power gear is installed on the output shaft of the power device and meshes with the inner rack of the corresponding inner gear ring track on the main board.

2. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 1, characterized in that: The clamp also includes a lifting device (1) installed between two sets of main boards. Each set of main boards is also provided with several L-shaped auxiliary legs (3) arranged at intervals on the outside. The vertical plate of the auxiliary leg is bolted to the main board, and the horizontal plate of the auxiliary leg abuts against the outer wall of the pipe for pipe positioning. The clamp includes four clamping claws, and the clamping claws are symmetrically arranged on both sides below the main board. The internal gear ring track includes a circular track formed by a fixed arc track and two movable arc tracks. The two movable arc tracks are symmetrically arranged on both sides of the fixed arc track. The end of the left movable arc track is hinged to one end of the fixed arc track, and one end of the right movable arc track is hinged to the other end of the fixed arc track. The other end of the left movable arc track is movably connected to the other end of the right movable arc track.

3. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 2, characterized in that: The clamping claw hydraulic device and the internal gear ring track hydraulic device are both hydraulic telescopic cylinders or pneumatic telescopic cylinders; the power device is a geared motor; the rotary heating winding equipment also includes an auxiliary gear (9), an auxiliary pressing device (10), a pressure roller adjusting device (11), a pressure roller (12), and an auxiliary pulley (15) set on an arc-shaped mounting frame; the auxiliary gear is set in the middle of the arc-shaped mounting frame and can mesh with the internal gear rack of the internal gear ring track; the pressure roller adjusting device and the pressure roller are set in the heat shrink tape feeding heating device, and the pressure roller adjusting device is connected to the pressure roller to adjust the contact pressure of the pressure roller on the heat shrink tape; the auxiliary pressing device is installed at the feed port of the heat shrink tape feeding heating device to assist in pressing the heat shrink tape; the auxiliary pulley is set on the outer peripheral wall of the internal gear ring track and is connected to it in a rolling fit.

4. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 3, characterized in that: Each main board is also equipped with a vacuum device (4) on its outer side. The vacuum device is a double impeller high-pressure blower type vacuum pump. The vacuum device is connected to the pressure roller through an air pipe and is used to adsorb, flip and press the heat shrink tape.

5. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 4, characterized in that: The pressure roller (12) is provided with a small hole that is connected to the air pipe of the vacuum device (4) to generate negative pressure on the heat shrink tape and adsorb the heat shrink tape onto the surface of the pressure roller (12).

6. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 5, characterized in that: The heat shrinkable tape feeding and heating device (13) is equipped with a cover plate that can be rotated and closed for checking the heat shrinkable tape feed port.

7. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 6, characterized in that: The connection between the clamping claw hydraulic device (5) and the clamping claw (8) is an eccentric shaft. The eccentric shaft is keyed to the clamping claw, and the other end is connected to the clamping claw hydraulic device (5). The hydraulic system can control the opening and closing of the clamping claw (8) by using the lever principle.

8. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 7, characterized in that: It also includes detachable support legs (0) located below each set of main boards and connected by bolts or pins, and the detachable support legs are also provided with transverse reinforcing bars connected by bolts or pins.

9. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 8, characterized in that: The auxiliary pressing device includes a fixed plate (19) set on the heat shrink tape inlet, and an auxiliary pressure roller (24), an auxiliary pressure roller bracket (25), a guide rod (26) and a telescopic spring (27) set on the fixed plate. The auxiliary pressure roller is set on the auxiliary pressure roller bracket, the guide rod is fixedly set on the fixed plate, and the auxiliary pressure roller bracket is slidably set on the guide rod. The two ends of the telescopic spring are set between the auxiliary pressure roller bracket and the fixed plate to apply elastic force to press the edge of the heat shrink tape with the auxiliary pressure roller. The pressure roller adjusting device includes a pressure block (20), a spring (21), an electric cylinder (22), a pressure roller connecting block (23) and a bolt support (28). The electric cylinder (22) is driven to connect with the pressure block (20). The pressure block (20) and the pressure roller connecting block (23) are connected by a spring (21). The pressure roller connecting block connects the pressure roller to drive the pressure roller (12) to move up and down.

10. The pipeline anti-corrosion rotary heating winding and clamping device according to claim 9, characterized in that: The heat shrinkable tape feeding and heating device includes a feeding assembly and a heating assembly. The feeding assembly includes a push-pull clamping insert-type clamp (29) set at the feeding port, and a clamping transmission roller (30) and a conveying roller (31) that cooperate with the push-pull clamping insert-type clamp for clamping the heat shrinkable tape. The conveying roller is connected to a motor to drive the heat shrinkable tape to the pressure roller (12). The heating assembly includes several infrared lamps arranged in pairs for the first heating of the heat shrinkable tape to 65-75°C. The infrared heating device (14) includes several infrared heating lamps arranged in pairs for the second heating of the heat shrinkable tape to 60-90°C. The medium frequency heating device (16) is a 60kW medium frequency induction heater for preheating the pipe to 90°C.

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