An electric heat tracing device for marine fuel lines and its application method

Abstract

This invention discloses an electric heat tracing laying device and its usage method for marine fuel oil pipelines, belonging to the field of electric heat tracing technology. The electric heat tracing laying device for marine fuel oil pipelines includes a traveling frame, and further includes: a traveling assembly mounted on the traveling frame for driving the traveling frame to move axially along the pipeline; the bottom of the traveling frame has an opening for the pipeline to enter; a rotating seat rotatably mounted on the traveling frame, on which an electric heating tape shell is mounted, and the electric heating tape shell releases the electric heat tracing tape outward through a discharge port; and a driving unit mounted on the traveling frame and connected to the traveling assembly. This invention replaces manual labor with mechanical automation, realizing the entire process of spiral winding of the electric heating tape, laying of the aluminum foil tape heat-conducting layer, and segmented fixing of the pressure-sensitive tape, solving the problems of low efficiency and insecure fixing in traditional methods, and significantly improving the safety and maintenance efficiency of marine fuel oil pipelines in low-temperature environments.

Description

Technical Field

[0001] This invention relates to the field of electric heat tracing technology, and in particular to an electric heat tracing laying device for marine fuel pipelines and its usage method. Background Technology

[0002] Low temperatures cause a sharp increase in the viscosity of fuel (especially high-wax, high-viscosity crude oil) in fuel pipelines. When the oil temperature is too low, wax precipitates and deposits on the pipe wall, reducing the pipe diameter, increasing flow resistance, and in severe cases, blocking transportation or even completely solidifying and clogging the pipeline. Fuel solidification or wax deposition can lead to abnormally high pressure inside the pipeline, increasing the risk of pipe bursts and leaks, with even more serious consequences, especially at sea. Installing an electric heat tracing device on the outside of the fuel pipeline can solve the problem of changes in the physical properties of fuel (especially high-pour-point oils such as crude oil and heavy oil) caused by cooling in low-temperature environments, ensuring safe, efficient, and economical transportation.

[0003] However, since the heating cable for pipeline equipment is often laid using a spiral winding method, it can lead to complicated procedures and consume a lot of manpower and time when laying ultra-long pipelines. Furthermore, after the heating cable is wound, it is necessary to use tape to stick it to prevent it from falling off and to ensure the heating effect on the pipeline, resulting in low installation efficiency of the electric heating device. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing an electric heat tracing laying device for marine fuel pipelines and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electric heat tracing installation device for marine fuel lines includes a traveling frame and further includes:

[0007] A traveling assembly is mounted on a traveling frame and is used to drive the traveling frame to move axially along the pipe. The bottom of the traveling frame has an opening for the pipe to enter.

[0008] A rotating seat is rotatably mounted on a traveling frame. An electric heating tape shell is provided on the rotating seat, and the electric heating tape shell releases the electric heating tape outward through a discharge port.

[0009] A drive unit, which is mounted on the walking frame and connected to the walking assembly, is used to drive the rotating seat to rotate on the walking frame.

[0010] A first positioning component is disposed on a rotating base and is used to circumferentially fix the electric heating tape spirally wound on the pipe.

[0011] And a second positioning component, which is connected to the first positioning component, for axially and continuously fixing the electric heat tracing cable spirally wound on the pipe.

[0012] Preferably, the walking assembly includes a first support plate symmetrically fixed on both sides inside the walking frame, a rotating rod rotatably connected to the first support plate, a main bevel gear disposed on the rotating rod, a second support plate fixed inside the walking frame, a rotating rod rotatably connected to the second support plate, a walking wheel disposed on the rotating rod and moving against the pipe, and a secondary bevel gear disposed at the end of the rotating rod and meshing with the main bevel gear, wherein a walking motor for driving the rotating rod to rotate is disposed on one of the first support plates.

[0013] Preferably, the drive unit includes a drive gear disposed on a rotating rod and a first arc-shaped rack disposed on a rotating seat and meshing with the drive gear.

[0014] Preferably, the first positioning component includes a mounting plate fixed on a rotating seat, a first lead screw rotatably connected to the mounting plate, a first sleeve threadedly connected to the first lead screw, a connecting plate fixedly connected to the first sleeve, a second lead screw rotatably connected to the connecting plate, a second sleeve threadedly connected to the second lead screw, and a fitting part disposed on the second sleeve. A torsion spring is disposed between the first lead screw and the mounting plate. A first gear is disposed at the end of the first lead screw. A second arc-shaped rack meshing with the first gear is fixedly disposed on the inner wall of the traveling frame. A worm gear rotatably connected to the first sleeve and slidably connected to the first lead screw through a guide strip is disposed on the second lead screw. A worm wheel meshing with the worm gear is disposed on the second lead screw.

[0015] Preferably, the bonding part includes a first elastic element fixedly connected to the second sleeve, a movable plate fixedly connected to the lower end of the first elastic element and slidably disposed outside the second lead screw, support plates fixedly disposed on both sides of the movable plate, a pressure-sensitive adhesive tape roll disposed between the two support plates, and a cutter fixedly disposed on the second sleeve and connected by a connecting rod, wherein the lower end face of the cutter is provided with serrations for cutting the pressure-sensitive adhesive tape.

[0016] Preferably, an elastic telescopic plate is fixedly provided at the end of the support plate away from the moving plate, and the bottom of the elastic telescopic plate is rotatably connected to a pressure roller that moves against the pressure-sensitive tape via a pin.

[0017] Preferably, an anti-sticking rod is fixedly provided on the support plate by a support plate, and the anti-sticking rod is in movable contact with the adhesive surface of the pressure-sensitive adhesive tape.

[0018] Preferably, the second positioning component includes a positioning seat with the same structure as the walking frame. The positioning seat is rotatably connected to the first lead screw. A tape shell is fixed on the positioning seat, and aluminum foil tape is released outward from the tape shell through the discharge port.

[0019] Preferably, both the positioning seat and the traveling frame are provided with limiting parts with the same structure. The limiting part on the traveling frame includes an adjusting screw that is symmetrically threaded on the traveling frame, a U-shaped seat provided at the end of the adjusting screw, and an auxiliary wheel that is rotatably connected to the U-shaped seat through a pin.

[0020] The present invention also discloses a method for using an electric heat tracing device for marine fuel lines, comprising the following steps:

[0021] S1: Installation Positioning:

[0022] Insert the walking frame and positioning seat into the bottom opening of the pipe so that the pipe passes through the device;

[0023] Rotate the adjusting screws on both sides to push the auxiliary wheel against the outer wall of the pipe to prevent the device from detaching;

[0024] Fix the end of the electric heating cable to the beginning of the pipe, and stick the end of the aluminum foil tape to the surface of the electric heating cable.

[0025] S2: Start running:

[0026] Turn on the walking motor to drive the rotating rod to rotate. The main bevel gear drives the secondary bevel gear, and the rotating rod drives the walking wheel to move along the axial direction of the pipeline.

[0027] S3: Synchronous winding and fixing:

[0028] Spiral winding of electric heating tape: The rotating rod drives the drive gear to mesh with the first arc-shaped rack, the rotating seat revolves around the pipe, and the electric heating tape shell releases the electric heating tape spirally winding around the pipe;

[0029] Synchronous application of aluminum foil tape: The rotating seat drives the positioning seat to revolve through the first lead screw, and the tape shell releases the aluminum foil tape to adhere along the path of the electric heating tape, enhancing thermal conductivity;

[0030] S4: Periodically fixed circumferentially.

[0031] Pressure-sensitive tape pressing: When the first screw revolves and the first gear meshes with the second arc-shaped rack, the first screw rotates, and the first sleeve moves along the axis of the first screw and away from the traveling frame, so that the first sleeve and the pipe are in a relatively stationary state. The worm gear meshes with the worm wheel to drive the second screw to rotate. The second sleeve moves downward along the axis of the second screw, so that the second sleeve drives the bonding part to move closer to the pipe. The moving plate drives the movable end of the pressure-sensitive tape roll to stick to the electric heating tape and aluminum foil tape through the support plate. As the rotating seat rotates, the pressure-sensitive tape wraps around the pipe circumference. The pressure roller presses the tape roll tightly against the circumference of the pipe.

[0032] Pressure-sensitive tape cutting and resetting: The second sleeve moves down to trigger the cutter to cut the pressure-sensitive tape. At the same time, the first gear disengages from the second arc-shaped rack, the torsion spring drives the first lead screw to reverse and reset, the second sleeve moves up along the axis of the second lead screw, and the moving plate lifts the pressure-sensitive tape roll to prevent the movable end of the pressure-sensitive tape roll from sticking to the pipe.

[0033] Cyclic execution: The pressure-sensitive tape is applied and cut once every revolution, achieving segmented circumferential fixation;

[0034] S5: Continuous Operation

[0035] The device moves along the axial direction of the pipeline and rotates continuously in conjunction with the rotating seat until the laying and fixing of the electric heating cable of the entire pipeline is completed.

[0036] Compared with the prior art, the present invention provides an electric heat tracing laying device and its method for marine fuel oil pipelines, which has the following beneficial effects:

[0037] 1. The electric heat tracing laying device and its usage method for marine fuel pipelines automatically attach and fix the laid electric heat tracing tape while it is being wound along the pipeline. Mechanical automation replaces manual labor, realizing the entire process of spiral winding of electric heat tracing tape, laying of aluminum foil tape heat-conducting layer, and segmented fixing of pressure-sensitive tape. It solves the problems of time-consuming and labor-intensive manual spiral winding of electric heat tracing tape on ultra-long pipelines, cumbersome tape fixing process, and easy loosening of tape by manual pasting which affects the adhesion between electric heat tracing tape and pipeline. It significantly improves the safety and maintenance efficiency of marine fuel pipelines in low-temperature environments.

[0038] 2. The electric heat tracing laying device and its usage method for marine fuel pipelines utilizes aluminum foil tape to adhere and position the wound electric heat tracing tape along the pipeline using a second positioning component. This ensures the electric heat tracing tape adheres tightly to the outside of the pipeline, enhancing its thermal conductivity and improving heat tracing efficiency. The first positioning component uses pressure-sensitive tape to circumferentially and equidistantly bind the positioned electric heat tracing tape with aluminum foil tape, further preventing the electric heat tracing tape from loosening. This effectively solves the problems of easy loosening of manually pasted tape and poor adhesion between the electric heat tracing tape and the pipeline in existing technologies, thereby improving the heat tracing effect.

[0039] 3. The electric heat tracing laying device for marine fuel lines and its usage method, through the forward and reverse rotation of the second lead screw, periodically presses down / cuts / resets the pressure-sensitive tape, avoids tape waste, ensures consistent binding force for each section, guarantees the positioning effect of the electric heat tracing tape, and reduces installation costs.

[0040] 4. The electric heat tracing laying device for marine fuel pipelines and its usage method, when the first gear meshes with the second arc-shaped rack, the first sleeve on the first screw moves in the opposite direction of the movement of the traveling frame, so that the first sleeve moves statically relative to the pipeline, thereby enabling the pressure-sensitive tape to be wrapped around the pipeline circumferentially and fixed to the electric heat tracing tape, ensuring the positioning effect of the electric heat tracing tape. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0042] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0043] Figure 3 For the present invention Figure 2 Enlarged structural diagram of section A in the middle;

[0044] Figure 4 This is a schematic diagram of the structure of the walking frame of the present invention. Figure 1 ;

[0045] Figure 5 For the present invention Figure 4 Enlarged structural diagram of section B;

[0046] Figure 6 This is a schematic diagram of the structure of the walking frame of the present invention. Figure 2 ;

[0047] Figure 7 This is a partial structural diagram of the first positioning component of the present invention. Figure 1 ;

[0048] Figure 8 This is a partial structural diagram of the first positioning component of the present invention. Figure 2 ;

[0049] Figure 9 For the present invention Figure 8 Enlarged structural diagram of section C;

[0050] Figure 10 This is a schematic diagram of the positioning seat of the present invention;

[0051] Figure 11 This is a schematic diagram of the structure after the aluminum foil tape and pressure-sensitive tape of the present invention are bonded together.

[0052] In the diagram: 1. Walking frame; 2. Pipeline; 3. Rotating seat; 301. First arc-shaped rack; 4. Electric heating cable shell; 401. Electric heating cable; 5. First support plate; 501. Rotating rod; 5011. Drive gear; 502. Main bevel gear; 503. Walking motor; 6. Second support plate; 601. Rotating rod; 602. Walking wheel; 603. Secondary bevel gear; 7. Mounting plate; 701. First lead screw; 7011. First gear; 7012. Guide bar; 702. First... 703. Sleeve; 704. Connecting plate; 705. Second lead screw; 706. Second sleeve; 8. Second arc-shaped rack; 9. Worm gear; 907. Worm wheel; 10. First elastic element; 11. Moving plate; 111. Support plate; 112. Pressure-sensitive tape roll; 12. Cutter; 13. Elastic telescopic plate; 14. Anti-sticking rod; 15. Pressure roller; 16. Positioning seat; 161. Tape shell; 162. Aluminum foil tape; 17. Adjusting screw; 171. U-shaped seat; 172. Auxiliary wheel. Detailed Implementation

[0053] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0054] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] like Figure 1 , Figure 2 , Figures 4 to 6 As shown, this embodiment proposes an electric heat tracing laying device for marine fuel pipelines, including a traveling frame 1, and further including: a traveling component, a rotating seat 3, a driving unit, a first positioning component, and a second positioning component. The traveling component is disposed on the traveling frame 1 and is used to drive the traveling frame 1 to move axially along the pipeline 2. The bottom of the traveling frame 1 has an opening for the pipeline 2 to enter. The rotating seat 3 is rotatably disposed on the traveling frame 1 and is provided with an electric heating tape shell 4. The electric heating tape shell 4 releases the electric heating tape 401 outward through the discharge port. The driving unit is disposed on the traveling frame 1 and connected to the traveling component, and is used to drive the rotating seat 3 to rotate on the traveling frame 1. The first positioning component is disposed on the rotating seat 3 and is used to fix the electric heating tape 401 spirally wound on the pipeline 2 circumferentially. The second positioning component is connected to the first positioning component and is used to fix the electric heating tape 401 spirally wound on the pipeline 2 axially continuously.

[0056] Specifically, the traveling frame 1 moves axially along the long pipe 2 via the traveling assembly. When the traveling assembly is working, the drive unit drives the rotating seat 3 to rotate on the traveling frame 1, causing the rotating seat 3 to revolve around the pipe 2. The heating cable shell 4 releases the heating cable 401 and spirally winds it around the pipe 2. While winding the heating cable 401 along the pipe 2, the first positioning component and the second positioning component automatically stick and fix the laid heating cable 401. Mechanical automation replaces manual labor, realizing the entire process of spiral winding of the heating cable 401, laying of the thermal conductive layer of aluminum foil tape 162, and segmental fixing of pressure-sensitive tape. This solves the problems of time-consuming and labor-intensive manual spiral winding of the heating cable 401 on ultra-long pipes 2, cumbersome tape fixing process, and easy loosening of the tape by manual pasting, which affects the fit between the heating cable 401 and the pipe 2. It significantly improves the safety and maintenance efficiency of marine fuel pipelines in low-temperature environments.

[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment, based on the above method, the walking assembly further includes a first support plate 5 symmetrically fixed on both sides inside the walking frame 1, a rotating rod 501 rotatably connected to the first support plate 5, a main bevel gear 502 disposed on the rotating rod 501, a second support plate 6 fixed inside the walking frame 1, a rotating rod 601 rotatably connected to the second support plate 6, a walking wheel 602 disposed on the rotating rod 601 and movingly abutting against the pipe 2, and a secondary bevel gear 603 disposed at the end of the rotating rod 601 and meshing with the main bevel gear 502. A walking motor 503 for driving the rotating rod 501 to rotate is disposed on one of the first support plates 5. The driving part includes a driving gear 5011 disposed on the rotating rod 501 and a first arc-shaped rack 301 disposed on the rotating seat 3 and meshing with the driving gear 5011.

[0058] Specifically, the end of the electric heating cable 401 is fixed at the starting position of the pipe 2. When the walking assembly is working, the walking motor 503 is turned on, driving the rotating rod 501 to rotate. The main bevel gear 502 drives the secondary bevel gear 603, and the rotating rod 601 drives the walking wheel 602 to move along the axial direction of the pipe 2. The rotating rod 501 drives the drive gear 5011 to mesh with the first arc-shaped rack 301. The rotating seat 3 revolves around the pipe 2, and the electric heating cable shell 4 releases the electric heating cable 401 to spirally wind around the pipe 2. Mechanical automation replaces manual labor and improves the laying efficiency of the electric heating cable 401.

[0059] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 9 As shown, in a preferred embodiment, based on the above method, the first positioning component further includes a mounting plate 7 fixed on the rotating seat 3, a first lead screw 701 rotatably connected to the mounting plate 7, a first sleeve 702 threadedly connected to the first lead screw 701, a connecting plate 703 fixedly connected to the first sleeve 702, a second lead screw 704 rotatably connected to the connecting plate 703, a second sleeve 705 threadedly connected to the second lead screw 704, and a fitting portion provided on the second sleeve 705. A torsion spring is provided between the first lead screw 701 and the mounting plate 7. The end of 701 is provided with a first gear 7011, and the inner wall of the walking frame 1 is fixed with a second arc-shaped rack 8 that meshes with the first gear 7011. The first sleeve 702 is rotatably connected to a worm 9 that is slidably connected to the first lead screw 701 through a guide bar 7012. The worm 9 is fixedly provided with a guide bar 7012 that is slidably connected to the first lead screw 701. When the first lead screw 701 rotates, it can drive the worm 9 to rotate through the guide bar 7012. When the first sleeve 702 moves, it drives the worm 9 to move synchronously. The second lead screw 704 is provided with a worm wheel 901 that meshes with the worm 9.

[0060] Furthermore, the bonding part includes a first elastic element 10 fixedly connected to the second sleeve 705, a movable plate 11 fixedly connected to the lower end of the first elastic element 10 and slidably disposed outside the second lead screw 704, a support plate 111 fixedly disposed on both sides of the movable plate 11, a pressure-sensitive adhesive tape roll 112 disposed between the two support plates 111, and a cutter 12 fixedly disposed on the second sleeve 705 and connected by a connecting rod. The lower end face of the cutter 12 is provided with serrations for cutting the pressure-sensitive adhesive tape.

[0061] When the rotating seat 3 revolves, the first gear 7011 meshes with the second arc-shaped rack 8 to drive the first lead screw 701 to rotate. The first sleeve 702 moves axially along the first lead screw 701 and moves away from the traveling frame 1, so that the first sleeve 702 and the pipe 2 are in a relatively stationary state. The worm gear 9 meshes with the worm wheel 901 to drive the second lead screw 704 to rotate. The second sleeve 705 moves axially along the second lead screw 704 and pushes the moving plate 11 to move through the first elastic element 10. The support plate 111 on the outside of the moving plate 11 presses the pressure-sensitive adhesive tape roll 112 onto the pipe 2. As the rotating seat 3 rotates, the circumference of the pressure-sensitive adhesive tape... Wrapped around pipe 2, the cutter 12 cuts the tape with its serrated teeth. As the second sleeve 705 continues to move axially along the second lead screw 704, the second sleeve 705 drives the cutter 12 to cut the pressure-sensitive tape. At the same time, the first gear 7011 disengages from the second arc-shaped rack 8, and the torsion spring drives the first lead screw 701 to reverse and reset. The second sleeve 705 moves upward along the second lead screw 704, and the moving plate 11 lifts the pressure-sensitive tape roll 112, moving the pressure-sensitive tape roll 112 away from pipe 2, preventing the movable end of the pressure-sensitive tape roll 112 from sticking to pipe 2. Each revolution completes one application and cut of the pressure-sensitive tape, achieving segmented circumferential fixation.

[0062] It should be noted that, in order to ensure that the circumferentially wound pressure-sensitive tape stably adheres the electric heating tape 401 to the pipe 2, an elastic telescopic plate 13 is fixedly provided at the end of the support plate 111 away from the moving plate 11. The bottom of the elastic telescopic plate 13 is rotatably connected to a pressure roller 15 that moves against the pressure-sensitive tape via a pin. As the rotating seat 3 rotates, the pressure-sensitive tape wraps around the pipe 2, and the pressure roller 15 presses the tape of the pressure-sensitive tape roll 112 tightly against the circumference of the pipe 2, ensuring the winding effect of the electric heating tape 401, thereby improving the fuel heating effect inside the pipe 2.

[0063] It should be noted that, in order to prevent the movable end of the pressure-sensitive adhesive tape after being cut by the cutter 12 from being re-attached to the pressure-sensitive adhesive tape roll 112, an anti-adhesion rod 14 is fixed on the support plate 111 by a support plate. The anti-adhesion rod 14 is in active contact with the adhesive surface of the pressure-sensitive adhesive tape. The anti-adhesion rod 14 effectively prevents the movable end of the pressure-sensitive adhesive tape from sticking to the tape roll, thereby facilitating the subsequent sticking and positioning of the pressure-sensitive adhesive tape.

[0064] like Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 10As shown, in a preferred embodiment, based on the above method, the second positioning component further includes a positioning seat 16 with the same structure as the walking frame 1. The positioning seat 16 is rotatably connected to the first lead screw 701. A tape shell 161 is fixed on the positioning seat 16. The tape shell 161 releases aluminum foil tape 162 outward through the discharge port. Before the electric heating cable 401 is wound, the end of the electric heating cable 401 is fixed at the starting position of the pipe 2. The end of the aluminum foil tape 162 is pasted on the surface of the electric heating cable 401. The rotating rod 501 drives the drive gear 5011 to mesh with the first arc-shaped rack 301. The rotating seat 3 revolves around the pipe 2. The electric heating cable shell 4 releases the electric heating cable 401 and spirally winds it around the pipe 2. The rotating seat 3 drives the positioning seat 16 to revolve through the first lead screw 701. The tape shell 161 releases aluminum foil tape 162 and pastes it along the path of the electric heating cable 401 to enhance thermal conductivity.

[0065] It should be noted that both the positioning seat 16 and the traveling frame 1 are equipped with limiting parts with the same structure. The limiting part on the traveling frame 1 includes an adjusting screw 17 that is symmetrically threaded on the traveling frame 1, a U-shaped seat 171 located at the end of the adjusting screw 17, and an auxiliary wheel 172 that is rotatably connected to the U-shaped seat 171 by a pin. By adjusting the symmetrically arranged adjusting screw 17, the U-shaped seat 171 is pushed to move radially, causing the auxiliary wheel 172 to contact the outer wall of the pipe 2. The auxiliary wheel 172 rotates by the pin and can roll freely along the pipe 2 when the device moves. When traveling, the auxiliary wheel 172 rotates with the pipe 2 to maintain a stable distance. The positioning seat 16 and the limiting part of the traveling frame 1 form a three-point positioning.

[0066] The present invention also discloses a method for using an electric heat tracing device for marine fuel lines, comprising the following steps:

[0067] S1: Installation Positioning:

[0068] Insert the walking frame 1 and the positioning seat 16 through the bottom opening of the pipe 2, so that the pipe 2 passes through the device;

[0069] Rotate the adjusting screws 17 on both sides to push the auxiliary wheel 172 to press against the outer wall of the pipe 2 to prevent the device from detaching.

[0070] Fix the end of the electric heating tape 401 at the starting position of pipe 2, and stick the end of the aluminum foil tape 162 to the surface of the electric heating tape 401.

[0071] S2: Start running:

[0072] Turn on the walking motor 503 to drive the rotating rod 501 to rotate. The main bevel gear 502 drives the secondary bevel gear 603, and the rotating rod 601 drives the walking wheel 602 to move the device along the axial direction of the pipe 2.

[0073] S3: Synchronous winding and fixing:

[0074] The electric heating tape 401 spirally winds: the rotating rod 501 drives the drive gear 5011 to mesh with the first arc-shaped rack 301, the rotating seat 3 revolves around the pipe 2, and the electric heating tape shell 4 releases the electric heating tape 401 spirally winds around the pipe 2;

[0075] Synchronous pasting of aluminum foil tape 162: The rotating seat 3 drives the positioning seat 16 to revolve through the first lead screw 701, and the tape shell 161 releases the aluminum foil tape 162 to be pasted along the path of the electric heating tape 401 to enhance thermal conductivity;

[0076] S4: Periodically fixed circumferentially.

[0077] Pressure-sensitive tape pressing: When the first lead screw 701 revolves and the first gear 7011 meshes with the second arc-shaped rack 8, the first lead screw 701 rotates, the first sleeve 702 moves axially along the first lead screw 701 and moves away from the traveling frame 1, so that the first sleeve 702 and the pipe 2 are in a relatively stationary state. The worm gear 9 meshes with the worm wheel 901 for transmission, the second lead screw 704 rotates, and the second sleeve 705 moves downward along the second lead screw 704, so that the second sleeve 705 drives the bonding part to approach the pipe 2. The moving plate 11 drives the movable end of the pressure-sensitive tape roll 112 to stick to the electric heating tape 401 and the aluminum foil tape 162 through the support plate 111. As the rotating seat 3 rotates, the pressure-sensitive tape wraps around the pipe 2, and the pressure roller 15 presses the tape of the pressure-sensitive tape roll 112 tightly against the circumference of the pipe 2.

[0078] Pressure-sensitive tape cutting and resetting: The second sleeve 705 moves down to trigger the cutter 12 to cut the pressure-sensitive tape. At the same time, the first gear 7011 disengages from the second arc-shaped rack 8, and the torsion spring drives the first lead screw 701 to reverse and reset. The second sleeve 705 moves up along the axis of the second lead screw 704, and the moving plate 11 lifts the pressure-sensitive tape roll 112 to prevent the movable end of the pressure-sensitive tape roll 112 from sticking to the pipe 2.

[0079] Cyclic execution: The pressure-sensitive tape is applied and cut once every revolution, achieving segmented circumferential fixation;

[0080] S5: Continuous Operation

[0081] The device moves along the axial direction of the pipe 2 and rotates continuously with the rotating seat 3 until the laying and fixing of the electric heat tracing cable 401 of the entire pipe 2 is completed.

[0082] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0083] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electric heat tracing laying device for marine fuel oil pipelines, comprising a traveling frame (1), characterized in that, Also includes: The walking assembly is mounted on the walking frame (1) and is used to drive the walking frame (1) to move axially along the pipe (2). The bottom of the walking frame (1) is provided with an opening for the pipe (2) to enter. Rotary seat (3), the rotating seat (3) is rotatably mounted on the walking frame (1), the rotating seat (3) is provided with an electric heating tape shell (4), the electric heating tape shell (4) releases the electric heating tape (401) outward through the discharge port. The drive unit is mounted on the walking frame (1) and connected to the walking assembly, and is used to drive the rotating seat (3) to rotate on the walking frame (1); The first positioning component is disposed on the rotating seat (3) and is used to circumferentially fix the electric heating tape (401) spirally wound on the pipe (2); And a second positioning component, which is connected to the first positioning component, for axially and continuously fixing the electric heating tape (401) spirally wound on the pipe (2); The walking assembly includes a first support plate (5) symmetrically fixed on both sides inside the walking frame (1), a rotating rod (501) rotatably connected to the first support plate (5), a main bevel gear (502) set on the rotating rod (501), a second support plate (6) fixed inside the walking frame (1), a rotating rod (601) rotatably connected to the second support plate (6), a walking wheel (602) set on the rotating rod (601) and movingly abutting against the pipe (2), and a secondary bevel gear (603) set at the end of the rotating rod (601) and meshing with the main bevel gear (502). A walking motor (503) for driving the rotating rod (501) to rotate is provided on the first support plate (5). The drive unit includes a drive gear (5011) mounted on a rotating rod (501) and a first arc-shaped rack (301) mounted on a rotating seat (3) and meshing with the drive gear (5011).

2. The electric heat tracing laying device for marine fuel oil pipelines according to claim 1, characterized in that, The first positioning assembly includes a mounting plate (7) fixed on a rotating seat (3), a first lead screw (701) rotatably connected to the mounting plate (7), a first sleeve (702) threadedly connected to the first lead screw (701), a connecting plate (703) fixedly connected to the first sleeve (702), a second lead screw (704) rotatably connected to the connecting plate (703), a second sleeve (705) threadedly connected to the second lead screw (704), and a fitting portion disposed on the second sleeve (705). A torsion spring is provided between the lead screw (701) and the mounting plate (7). A first gear (7011) is provided at the end of the first lead screw (701). A second arc-shaped rack (8) that meshes with the first gear (7011) is fixed on the inner wall of the walking frame (1). A worm (9) that is rotatably connected to the first lead screw (701) through a guide bar (7012) is slidably connected to the first sleeve (702). A worm wheel (901) that meshes with the worm (9) is provided on the second lead screw (704).

3. The electric heat tracing device for marine fuel oil pipelines according to claim 2, characterized in that, The bonding part includes a first elastic element (10) fixedly connected to the second sleeve (705), a movable plate (11) fixedly connected to the lower end of the first elastic element (10) and slidably disposed outside the second lead screw (704), a support plate (111) fixedly disposed on both sides of the movable plate (11), a pressure-sensitive adhesive tape roll (112) disposed between the two support plates (111), and a cutter (12) fixedly disposed on the second sleeve (705) and connected by a connecting rod. The lower end face of the cutter (12) is provided with serrations for cutting the pressure-sensitive adhesive tape.

4. The electric heat tracing laying device for marine fuel oil pipelines according to claim 3, characterized in that, An elastic telescopic plate (13) is fixed at one end of the support plate (111) away from the moving plate (11), and the bottom of the elastic telescopic plate (13) is rotatably connected to a pressure roller (15) that moves against the pressure-sensitive tape via a pin.

5. The electric heat tracing laying device for marine fuel oil pipelines according to claim 4, characterized in that, An anti-sticking rod (14) is fixed on the support plate (111) by a support plate, and the anti-sticking rod (14) is in contact with the adhesive surface of the pressure-sensitive tape.

6. The electric heat tracing laying device for marine fuel oil pipelines according to claim 5, characterized in that, The second positioning component includes a positioning seat (16) with the same structure as the walking frame (1). The positioning seat (16) is rotatably connected to the first lead screw (701). A tape shell (161) is fixed on the positioning seat (16). The tape shell (161) releases aluminum foil tape (162) outward through the discharge port.

7. The electric heat tracing device for marine fuel oil pipelines according to claim 6, characterized in that, Both the positioning seat (16) and the walking frame (1) are provided with limiting parts with the same structure. The limiting part on the walking frame (1) includes an adjusting screw (17) symmetrically threaded on the walking frame (1), a U-shaped seat (171) at the end of the adjusting screw (17), and an auxiliary wheel (172) rotatably connected to the U-shaped seat (171) by a pin.

8. A method of using the electric heat tracing laying device for marine fuel oil pipelines according to claim 7, characterized in that, Includes the following steps: S1: Installation Positioning: Insert the walking frame (1) and the positioning seat (16) through the bottom opening of the pipe (2) so that the pipe (2) passes through the device; Rotate the adjusting screws (17) on both sides to push the auxiliary wheel (172) against the outer wall of the pipe (2) to prevent the device from detaching; Fix the end of the electric heating tape (401) to the starting position of the pipe (2), and stick the end of the aluminum foil tape (162) to the surface of the electric heating tape (401); S2: Start running: Turn on the walking motor (503), drive the rotating rod (501) to rotate, the main bevel gear (502) drives the secondary bevel gear (603), and the rotating rod (601) drives the walking wheel (602) to move along the axial direction of the pipe (2); S3: Synchronous winding and fixing: The electric heating tape (401) is spirally wound: the rotating rod (501) drives the drive gear (5011) to mesh with the first arc-shaped rack (301), the rotating seat (3) revolves around the pipe (2), and the electric heating tape shell (4) releases the electric heating tape (401) spirally wound around the pipe (2). Synchronous pasting of aluminum foil tape (162): The rotating seat (3) drives the positioning seat (16) to revolve through the first lead screw (701), and the tape shell (161) releases the aluminum foil tape (162) to be pasted along the path of the electric heating tape (401) to enhance thermal conductivity; S4: Periodically fixed circumferentially. Pressure-sensitive tape pressing: When the first lead screw (701) revolves, and the first gear (7011) meshes with the second arc-shaped rack (8), the first lead screw (701) rotates, and the first sleeve (702) moves axially along the first lead screw (701) and moves away from the traveling frame (1), so that the first sleeve (702) and the pipe (2) are in a relatively stationary state. The worm gear (9) meshes with the worm wheel (901) for transmission, the second lead screw (704) rotates, and the second sleeve (701) rotates. 05) Move downward along the second screw (704) axis, so that the second sleeve (705) drives the bonding part to approach the pipe (2). The moving plate (11) drives the movable end of the pressure-sensitive tape roll (112) to stick on the electric heating tape (401) and aluminum foil tape (162) through the support plate (111). As the rotating seat (3) rotates, the pressure-sensitive tape wraps around the pipe (2) circumferentially. The pressure roller (15) presses the tape of the pressure-sensitive tape roll (112) tightly against the circumference of the pipe (2). Pressure-sensitive tape cutting and resetting: The second sleeve (705) moves down to trigger the cutter (12) to cut the pressure-sensitive tape. At the same time, the first gear (7011) disengages from the second arc rack (8), and the torsion spring drives the first lead screw (701) to reverse and reset. The second sleeve (705) moves up along the axis of the second lead screw (704), and the moving plate (11) lifts the pressure-sensitive tape roll (112) to prevent the movable end of the pressure-sensitive tape roll (112) from sticking to the pipe (2). Cyclic execution: The pressure-sensitive tape is applied and cut once every revolution, achieving segmented circumferential fixation; S5: Continuous Operation The device moves along the axial direction of the pipe (2) and rotates continuously with the rotating seat (3) until the laying and fixing of the electric heating tape (401) of the entire pipe (2) is completed.

Images