Armoring forming processing device for marine flexible pipe cable

Abstract

The invention provides an armoring forming processing device for a marine flexible pipe cable, which comprises a pay-off device, the pay-off device is used for placing and guiding the pipe cable to enter an armoring process, the pipe cable penetrates through a positioning device to position the radial position of the pipe cable, and the pipe cable sequentially penetrates through a framework layer armoring mechanism, a compression-resistant layer armoring mechanism and a tensile layer armoring mechanism. The skeleton layer armoring mechanism plastically deforms the strip steel and winds the strip steel to the outer side of the pipe cable to form a skeleton layer; the compression-resistant layer armoring mechanism, the tensile layer armoring mechanism and the framework layer armoring mechanism are coaxially installed and are respectively connected with the driving system, the compression-resistant layer armoring mechanism winds strip steel to the outer side of a framework layer to form a compression-resistant layer, and the tensile layer armoring mechanism winds strip steel to the outer side of the compression-resistant layer to form a tensile layer. And the armored pipe cable is led to the take-up device through the traction device. By optimizing the equipment structure and the working process, efficient pipe cable armoring forming machining is achieved, the production efficiency is remarkably improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of armor winding, and in particular relates to an armor forming and processing device for marine flexible pipe cables. Background Art

[0002] As energy consumption rises sharply, the exploration and development of marine oil and gas resources are becoming increasingly active. As the core equipment in deep-sea oil and gas exploitation, marine cables are like the nerves and blood vessels of the marine oil production system, maintaining the smooth progress of the entire exploitation operation. Among them, the importance of marine flexible pipe armor as an important part of submarine cable protection is self-evident. Flexible pipe armor can not only effectively resist external mechanical damage, but also prevent seawater erosion and marine biological attachment, ensuring the stable laying of cables in complex seabed environments. Existing armored forming equipment is high in cost and has a long maintenance cycle. There is a lack of dynamic regulation of the plastic deformation amount (such as Z-type and C-type section forming) during the strip forming process, which can easily lead to wave wrinkle defects. In addition, the efficiency and synchronization of the transmission system of the processing equipment are insufficient. The transmission systems of the skeleton layer, compression layer, and tensile layer are independently driven, and there are speed matching errors (such as the complex speed ratio design of the planetary gear system of the tensile layer), which leads to pitch deviation of the armor layer. The lightness and flexibility of the flexible tube armor make the laying and recovery of submarine cables more convenient, reduce the construction difficulty and cost, and further improve the economy and feasibility of offshore oil extraction. The armor structure is one of the key features that enables submarine cables to overcome the challenges of deep-sea environments and transmit electricity safely and efficiently, thus significantly different from terrestrial cables. Therefore, in the offshore oil production system, strengthening the research and development and application of marine flexible tube armor is of great significance to ensuring production safety and improving extraction efficiency. Summary of the invention

[0003] The object of the present invention is to provide an armor forming processing device for marine flexible umbilical cable in order to overcome the above problems.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] An armor forming processing device for marine flexible pipe cables comprises: a pay-off device, the pay-off device is used to place and guide the pipe cables into the armoring process, the pipe cables pass through a positioning device to position the radial position of the pipe cables, the pipe cables pass through a skeleton layer armoring mechanism, a pressure-resistant layer armoring mechanism, and a tensile layer armoring mechanism in sequence, the skeleton layer armoring mechanism plastically deforms the strip steel and winds it around the outside of the pipe cables to form a skeleton layer; the pressure-resistant layer armoring mechanism and the tensile layer armoring mechanism are coaxially installed with the skeleton layer armoring mechanism and are respectively connected to a driving system, the pressure-resistant layer armoring mechanism winds the strip steel around the outside of the skeleton layer to form a pressure-resistant layer, the tensile layer armoring mechanism winds the strip steel around the outside of the pressure-resistant layer to form a tensile layer, a planetary gear train structure is installed on one side of the tensile layer armoring mechanism, and the pipe cables after armoring are led to a take-up device through a traction device.

[0006] Furthermore, the positioning mechanism includes two groups of adjustable rollers, the rollers are installed on the clamping plate through shafts, sleeves and bearings, and the clamping plate is installed on the bracket through adjusting bolts.

[0007] Furthermore, the skeleton layer armoring mechanism includes a cage, in which five groups of circumferentially evenly distributed pay-off drums are installed. In the process of the strip steel entering the wire-drawing die from the pay-off drum, the strip steel is gradually rolled into a Z shape and self-locked with the already armored Z-shaped strip steel, and then the self-locked strip steel is gradually wound onto the pipe cable to complete the skeleton layer armoring process.

[0008] Furthermore, the pressure-resistant layer armoring mechanism includes a second stranding cage, in which five groups of circumferentially evenly distributed pay-off drums are installed. In the process of the strip steel entering the second wire drawing die from the second pay-off drum, the strip steel is gradually rolled into an S shape and self-locked with the already armored S-shaped strip steel, and then the self-locked strip steel is gradually wound onto the pipe cable to complete the pressure-resistant layer armoring process.

[0009] Furthermore, the tensile layer armoring mechanism comprises a stranding cage three, in which three sets of circumferentially evenly distributed pay-off drums three are installed, and the strip steel is gradually wound onto the pipe cable to form a tensile layer.

[0010] Furthermore, the driving system includes three driving motors, and the driving motors are respectively connected to the pay-off drums of the first, second and third cages through a gear transmission mechanism.

[0011] Furthermore, the planetary gear train structure includes a planetary wheel carrier and a center wheel. The center wheel has teeth on the outside. Five evenly distributed planetary wheels are installed between the center wheel and the ring gear. The pipe cable forming the tensile layer passes through the center wheel. The planetary gear train structure adjusts the rotation speed and amplifies the torque to make the tensile layer tighter.

[0012] Furthermore, it also includes: an inner sheath layer forming device and an outer sheath layer forming device, which are respectively used to coat the inner and outer sheath layers of the pipe and cable after the skeleton layer, compression layer and tensile layer armoring of the pipe and cable are completed, so as to improve the corrosion resistance and mechanical strength of the pipe and cable.

[0013] Furthermore, the installation angles of the first pay-off drum, the second pay-off drum, and the third pay-off drum are 78-82 degrees to the axis of the cable tube.

[0014] Furthermore, the wire-taking device comprises a wire-taking transmission device, a wire-taking reel frame and a wire-arranging device, which arranges the pipes and cables neatly on the wire-taking reel.

[0015] The beneficial effects of the present invention are:

[0016] The present invention realizes efficient pipe and cable armor forming processing by optimizing the equipment structure and work flow, and can process more pipes and cables in a unit time, thereby significantly improving production efficiency and reducing production costs.

[0017] The marine flexible cable armor forming and processing equipment of the present invention has shown significant advantages in efficient production, precise forming, flexible adaptability, structural stability, intelligent operation, energy saving and environmental protection, and provides an efficient, reliable and environmentally friendly processing device for the marine engineering field. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a structural schematic diagram of the present invention.

[0019] Attached Figure 2 It is a schematic diagram of the planetary gear train mechanism of the present invention.

[0020] Attached Figure 3 It is a structural schematic diagram of the positioning mechanism of the present invention.

[0021] Attached Figure 4 Yes Figure 3 AA section view.

[0022] Attached Figure 5 It is a schematic diagram of the installation of a cage 1 in the skeleton layer armoring mechanism of the present invention.

[0023] Attached Figure 6 It is a schematic diagram of the tensile layer armoring mechanism of the present invention.

[0024] Attached Figure 7 It is a working principle diagram of the present invention.

[0025] Attached Figure 8 It is a structural schematic diagram of the skeleton layer armoring mechanism, the compression layer armoring mechanism, and the tension layer armoring mechanism of the present invention.

[0026] In the attached drawings: 1. wire-receiving device, 2. traction device, 3. tensile layer armoring mechanism, 4. compressive layer armoring mechanism; 5. skeleton layer armoring mechanism; 6. positioning mechanism, 7. wire-releasing device;

[0027] 31. Stranding cage, 32. Armored compression layer, 33. Transmission mechanism, 34. Strip steel, 35. Tensile layer in armor, 36. Tensile layer pay-off drum, 37. Armored cable tube;

[0028] 51. Stranding cage 1, 52. Pay-off drum 1, 53. Parallel mold;

[0029] 61. Bracket, 62. Roller, 63. Clamp, 64. Shaft and bushing; 65. Bearing, 66. Adjusting bolt;

[0030] 81. Ring gear, 82. Planetary gear, 83. Planetary gear carrier, 84. Center gear. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] The present invention provides an armor forming and processing device for marine flexible cable, as shown in the attached Figure 1 , 7 As shown, its composition includes: a wire-receiving device 1, a traction wheel 2, a tensile layer armoring mechanism 3, a compressive layer armoring mechanism 4, a skeleton layer armoring mechanism 5, a positioning mechanism 6, and a wire-releasing device 7.

[0034] The pay-off device 7 is used to place and guide the pipe and cable into the armoring process. The pipe and cable pass through the positioning device 6 to locate the radial position of the pipe and cable. The pipe and cable pass through the skeleton layer armoring mechanism 5, the pressure-resistant layer armoring mechanism 4, and the tensile layer armoring mechanism 3 in sequence. The skeleton layer armoring mechanism plastically deforms the strip steel and winds it around the outside of the pipe and cable to form a skeleton layer; the pressure-resistant layer armoring mechanism 4 and the tensile layer armoring mechanism 3 are coaxially installed with the skeleton layer armoring mechanism and are respectively connected to the drive system. The pressure-resistant layer armoring mechanism 4 winds the strip steel around the outside of the skeleton layer to form a pressure-resistant layer, and the tensile layer armoring mechanism 3 winds the strip steel around the outside of the pressure-resistant layer to form a tensile layer. A planetary gear train structure 8 is installed on one side of the tensile layer armoring mechanism 3. The pipe and cable after armoring is led to the take-up device 1 through the traction device 2.

[0035] As attached Figure 3-4 As shown, the positioning mechanism 6 includes two groups of adjustable rollers 62, and the rollers 62 are installed on the clamping plate 63 through the shaft and the sleeve 64 and the bearing 65. The clamping plate 63 is installed on the bracket 61 through the adjusting bolt 66. The positioning mechanism 6 is arranged before the skeleton layer, the compression layer and the tensile layer armoring mechanism.

[0036] The positioning mechanism 6 is used to clamp and guide the optical and electrical cables into the armoring mechanism, and the roller group adopts an up and down adjustable structure to adapt to cables of different diameters.

[0037] As attached Figure 5 , 8 As shown, the skeleton layer armoring mechanism 5 is used to plastically deform the strip steel and wind it around the outside of the optical and electrical cables to form a skeleton layer. It is composed of a frame, on which a cage 51 is installed. Five circumferentially evenly distributed pay-off drums 52 are installed in the cage 51. In the process of the strip steel entering the wire-joining die 53 from the pay-off drum 52, the strip steel is gradually rolled into a Z shape and self-locked with the already armored Z-shaped strip steel, and then the self-locked strip steel is gradually wound around the pipe cable to complete the skeleton layer armoring process.

[0038] The cage 51 winds the steel belt tightly around the cable. Its size parameters are determined by the diameter of the cable and the required number of armor layers to ensure that each layer of steel belt can be wound evenly and tightly. Inside the cage, the cable is rotated and pushed evenly, while the steel belt is accurately guided to the surface of the cable to form a tight armor layer. The paralleling die is located behind the cage 51, and the multiple layers of armored steel belts are tightly combined together. Through the processing of the paralleling die, the gap between the steel belts is minimized, thereby improving the mechanical strength and durability of the armored cable and ensuring the integrity and stability of the armor layer. Five groups of circumferentially evenly distributed pay-off drums 52 are installed in the cage 51. The installation angle of the pay-off drum 52 is arranged at a preset angle with the cable axis angle. After the strip steel enters the paralleling die from the pay-off drum, it is gradually rolled into a Z shape and self-locked with the formed Z-shaped strip steel.

[0039] The pressure-resistant layer armoring mechanism 4 described in this embodiment is used to wind the strip steel onto the outside of the skeleton layer to form a pressure-resistant layer, and its composition includes: a second stranding cage, in which five groups of circumferentially evenly distributed pay-off drums are installed. During the process of the strip steel entering the wire-drawing die 2 from the pay-off drum 2, the strip steel is gradually rolled into an S shape and self-locked with the already armored S-shaped strip steel, and then the self-locked strip steel is gradually wound onto the pipe cable to complete the pressure-resistant layer armoring process.

[0040] The compression layer armoring mechanism is similar in structure to the skeleton layer armoring mechanism, but the strip steel section is S-shaped, and the compression layer strip steel is wound and formed by the same arrangement of the stranding cage and the pay-off drum.

[0041] As attached Figure 6 As shown, the tensile layer armoring mechanism 3 includes a stranding cage 31, in which three groups of circumferentially evenly distributed pay-off drums 32 are installed, and the strip steel is gradually wound onto the cable to form a tensile layer.

[0042] Preferably, the pay-off reel 52 includes a pay-off frame and a pay-off reel; the pay-off reel is a set of brackets with a lifting screw, on which a tension control device is installed to ensure that the steel belt or cable maintains a constant tension during the pay-off process, and to avoid loosening or breaking of the cable due to uneven tension. By adjusting the lifting screw, it can adapt to cables of different diameters and lengths, thereby improving the versatility and flexibility of the equipment. The pay-off reel adopts a semi-tangent steel belt head design to ensure that the steel belt is stable and not easy to break during the pay-off process. The speed of the pay-off reel can reach 200-500 rpm, and the efficient pay-off speed provides a stable and continuous supply of raw materials for subsequent processes. The pay-off reel is equipped with guide wheels and guide rods, which mainly guide the steel belt and adjust the wrapping angle of the steel belt to ensure that the steel belt can be wrapped around the cable smoothly and snugly.

[0043] The strip has 5 heads and a helix angle of 7.26°.

[0044] The structures of the pay-off reel 1 52, the pay-off reel 2 and the pay-off reel 3 are the same.

[0045] The pay-off drum achieves uniform distribution and tight winding of the steel strips by precisely controlling the rotation speed and winding angle. The wire-joining die is located behind the stranding cage and is used to join multiple layers of steel strips to ensure the integrity and stability of the armor layer.

[0046] The traction device 2 in this embodiment is usually composed of a set of traction wheels with a diameter of more than 2 meters. The traction wheels guide the armored cable to the take-up drum while maintaining the stability and tension of the cable during transmission. By adjusting the speed and tension of the traction wheels, it is ensured that the cable will not be loose or overstretched during the take-up process.

[0047] The driving system in this embodiment includes three driving motors, and the driving motors are respectively connected to the pay-off drums of the cage 1 51, the cage 2, and the cage 3 31 through gear transmission mechanisms.

[0048] The motor transmits power to the cage of the skeleton layer, the compression layer and the tensile layer armoring mechanism through the gear transmission mechanism.

[0049] The gear transmission mechanism provides motion and power for the rotary motion of the cage, and is mounted on a circular plate at the back of the pay-off drum.

[0050] As attached Figure 2 As shown, the planetary gear train structure 8 comprises a planetary wheel carrier 83 and a center wheel 84. The center wheel 84 has teeth on the outside. Five evenly distributed planetary wheels 82 are installed between the center wheel 84 and the gear ring 81. The tubes and cables forming the tensile layer pass through the center wheel 84. The planetary gear train structure 8 adjusts the rotation speed and amplifies the torque to make the tensile layer tighter.

[0051] The wire-taking device described in this embodiment includes a wire-taking transmission device, a wire-taking reel frame and a wire-arranging device, which arranges the armored pipes and cables neatly on the wire-taking reel.

[0052] The wire-receiving and arranging device is the last process of the armoring machine. It consists of a wire-receiving drive, a wire-receiving reel, and a wire-arranging device. The wire-receiving drive can be driven alone or in conjunction with the whole machine to meet different production needs. The wire-arranging device is responsible for arranging the cables neatly on the wire-receiving reel to avoid crossing or overlapping. The wire-arranging device can be adjusted by mechanical or electric arranging to ensure the neatness and tightness of the cables on the wire-receiving reel.

[0053] Furthermore, the device of the present invention also includes: an inner sheath layer forming device and an outer sheath layer forming device, which are respectively used to coat the inner and outer sheath layers of the pipe and cable after the skeleton layer, compression layer and tensile layer armoring of the pipe and cable are completed, so as to improve the corrosion resistance and mechanical strength of the pipe and cable.

[0054] Embodiment 2:

[0055] According to the armor forming processing device for marine flexible pipes and cables described in Example 1, in the armor forming processing process of the marine flexible pipes and cables, each step is closely connected, jointly ensuring the high quality and excellent performance of the pipes and cables.

[0056] Processing technology of armored pipe cable:

[0057] Optical fiber / cable - skeleton layer winding - inner sheath layer coating - compression layer winding - tensile layer winding - outer sheath layer coating, etc.

[0058] Device experimental process:

[0059] First, the optical / cable positioning uses a pay-off device and adjustable rollers or clamps to accurately position it to ensure its stability in subsequent processing. It also provides an accurate reference for the subsequent armor layer to prevent deviation and distortion during processing. The required devices include a pay-off disk, a guide wheel, and a positioning fixture, which work together to ensure that the center axis of the optical / cable is accurately aligned with the rotation axis of the processing equipment.

[0060] Secondly, the optical / cable cable, which has been precisely positioned, is fed into the stranding cage, and the skeleton layer profile (such as Z-shaped steel strip) is driven by the drive device to be wound around the optical / cable cable at a specific angle and tension. The skeleton layer not only enhances the mechanical strength of the cable, but also provides it with compressive resistance. The devices required for this process include the stranding cage, drive motor, forming mold, etc. They work together to ensure that the skeleton layer can be evenly and tightly wrapped around the optical / cable cable, completing the positioning and winding of the skeleton layer profile.

[0061] Subsequently, the molten polymer material is heated and extruded into a round tube through an extruder, tightly wrapped around the skeleton layer. The inner sheath layer plays a role of isolation and protection, preventing the external environment from corroding the inside of the cable. The devices required for this step include an extruder, a mold, and a cooling device, which ensure the uniformity and stability of the inner sheath layer and realize the molding of the inner sheath layer polymer round tube.

[0062] Then, the compression layer profile is positioned and wound, and the tension layer profile is positioned and wound. The tension layer profile (such as a rectangular cross-section steel strip) is wound around the compression layer at a specific spiral angle and tension to form a multi-layer structure. The tension layer significantly improves the tensile strength and structural rigidity of the cable, ensuring its stability when subjected to tension or torsion. The required devices include a cage, a drive motor, and a tension control device.

[0063] Finally, the outermost layer of protection for the cable is the outer sheath. The polymer material is extruded through an extruder and coated on the tensile layer to form the final protective layer. The outer sheath not only isolates the external environment, but also provides additional mechanical protection and wear resistance. The required equipment is similar to that of the inner sheath layer, including extruders, molds, and cooling devices. Each step of the processing process is closely linked to form the complete armor structure of the marine flexible cable and realize the outer sheath layer polymer round tube molding.

[0064] The overall layout of the equipment of the present invention is compact, and each component works in coordination to achieve continuous armoring processing of optical and electrical cables, thereby improving production efficiency and processing quality.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An armor forming and processing device for marine flexible pipe cables, characterized in that: include: A wire-releasing device (7) is used to place and guide the pipe cable into the armoring process. The pipe cable passes through a positioning device (6) to position the radial position of the pipe cable. The pipe cable passes through a skeleton layer armoring mechanism (5), a pressure-resistant layer armoring mechanism (4), and a tensile layer armoring mechanism (3) in sequence. The skeleton layer armoring mechanism plastically deforms the strip steel and winds it around the outside of the pipe cable to form a skeleton layer. The pressure-resistant layer armoring mechanism (4) and the tensile layer armoring mechanism (3) are coaxially installed with the skeleton layer armoring mechanism and are respectively connected to a drive system. The pressure-resistant layer armoring mechanism (4) winds the strip steel around the outside of the skeleton layer to form a pressure-resistant layer. The tensile layer armoring mechanism (3) winds the strip steel around the outside of the pressure-resistant layer to form a tensile layer. A planetary gear train structure (8) is installed on one side of the tensile layer armoring mechanism (3). After the armoring is completed, the pipe cable is guided to the wire-receiving device (1) through a traction device (2).

2. The armor forming processing device for marine flexible umbilical cable according to claim 1, characterized in that: The positioning mechanism (6) comprises two groups of adjustable rollers (62). The rollers (62) are mounted on a clamping plate (63) via a shaft and a sleeve (64) and a bearing (65). The clamping plate (63) is mounted on a bracket (61) via an adjusting bolt (66).

3. The armor forming processing device for marine flexible umbilical cable according to claim 1, characterized in that: The skeleton layer armoring mechanism (5) comprises a cage (51), in which five groups of circumferentially evenly distributed pay-off drums (52) are installed. In the process of the steel strip entering the wire drawing die (53) from the pay-off drum (52), the steel strip is gradually rolled into a Z shape and self-locked with the already armored Z-shaped steel strip, and then the self-locked steel strip is gradually wound onto the cable to complete the skeleton layer armoring process.

4. The armor forming processing device for marine flexible umbilical cable according to claim 1, characterized in that: The pressure-resistant layer armoring mechanism (4) comprises a second stranding cage, in which five groups of circumferentially evenly distributed pay-off drums are installed. When the strip steel enters the second wire drawing die from the second pay-off drum, the strip steel is gradually rolled into an S shape and self-locked with the already armored S-shaped strip steel, and then the self-locked strip steel is gradually wound onto the cable to complete the pressure-resistant layer armoring process.

5. The armor forming processing device for marine flexible umbilical cable according to claim 1, characterized in that: The tensile layer armoring mechanism (3) comprises a stranding cage (31), in which three groups of circumferentially evenly distributed pay-off drums (32) are installed, and the strip steel is gradually wound onto the cable to form a tensile layer.

6. The armor forming processing device for marine flexible umbilical cable according to claim 1, 2 or 3, characterized in that: The driving system comprises three driving motors, which are respectively connected to the pay-off drums of the first cage (51), the second cage and the third cage (31) through gear transmission mechanisms.

7. The armor forming processing device for marine flexible umbilical cable according to claim 1, characterized in that: The planetary gear train structure (8) comprises a planetary wheel carrier (83) and a center wheel (84). The center wheel (84) has teeth on the outside. Five evenly distributed planetary wheels (82) are installed between the center wheel (84) and the gear ring (81). The tube cable forming the tensile layer passes through the center wheel (84). The planetary gear train structure (8) adjusts the rotation speed and amplifies the torque, so that the tensile layer is tightened.

8. The armor forming processing device for marine flexible umbilical cable according to claim 1, characterized in that: It also includes: an inner sheath layer forming device and an outer sheath layer forming device, which are respectively used to coat the inner and outer sheath layers of the pipe and cable after the skeleton layer, compression layer and tensile layer armoring of the pipe and cable are completed, so as to improve the corrosion resistance and mechanical strength of the pipe and cable.

9. The armor forming processing device for marine flexible umbilical cable according to claim 6, characterized in that: The installation angles of the first pay-off drum, the second pay-off drum, and the third pay-off drum are 78-82 degrees to the axis of the cable tube.

10. The armor forming processing device for marine flexible umbilical cable according to claim 1, characterized in that: The wire-taking device comprises a wire-taking transmission device, a wire-taking reel frame and a wire-arranging device, and arranges the pipes and cables neatly on the wire-taking reel.

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