Continuous pultrusion laying pressure-resistant glass fiber reinforced plastic pipeline production system

Abstract

The invention provides a continuous pultrusion laying pressure-resistant glass fiber reinforced plastic pipeline production system, and relates to the technical field of submarine pipeline laying. The continuous pultrusion laying pressure-resistant glass fiber reinforced plastic pipeline production system comprises a barge and a buoy chain, a rail is fixedly arranged on the upper surface of the barge, a moving wheel set is arranged on the surface of the rail in a sliding mode, a moving platform is arranged above the moving wheel set, and a loosening and clamping device is fixedly arranged on one side of the upper end of the barge. A pipeline releasing device is fixedly connected to one side of the loosening and clamping device, a servo push-pull device is fixedly arranged on the side, close to the loosening and clamping device, of the upper surface of the barge, and the output end of the servo push-pull device is fixedly connected with the movable platform. Through integrated operation of offshore continuous pultrusion and stepping laying, the circumferential weld defect and the joint failure risk of traditional segmented laying are thoroughly eliminated, and reliable, efficient and economical laying of the long-distance submarine glass fiber reinforced plastic pipeline is achieved.

Description

Technical Field

[0001] This invention relates to the field of submarine pipeline laying technology, specifically to a continuous pultrusion laying production system for pressure-resistant fiberglass pipes. Background Technology

[0002] Currently, the laying of fiberglass reinforced plastic (FRP / GRP) pipelines on the seabed mainly uses two methods: synchronous laying with burial depth and lifting barge method. The former uses pipe-laying vessel for spigot and socket connection, pipe rack for guidance, and hydraulic cutting machine for simultaneous trenching and burial depth to achieve integrated operation and avoid underwater joints; the latter uses barge lifting equipment to lift and connect sections one by one, which is suitable for large-diameter and complex terrain scenarios, and is supplemented by pipe towing method to meet the needs of near-shore shallow water.

[0003] Existing patent (publication number: CN112240433A) discloses "a submarine pipeline laying device, comprising a device body, the device body including a frame, a feeding bin, a pipe connecting device, and a feeding locking device. The feeding bin is slidably mounted on the frame, the pipe connecting device is mounted on the frame, and the feeding locking device is connected to the lower end of the feeding bin and located on both sides of the pipe connecting device. The pipe connecting device is used to fix the pipe and adjust the position of the pipe. The feeding bin has feeding sliding devices on both sides, and the frame has guide rails on both sides. The feeding sliding devices are slidably connected to the guide rails, and the feeding bin is slidably connected to the frame through the feeding sliding devices. The pipe connecting device includes a pipe adjusting device and a pipe fixing device. The pipe adjusting device is located at both ends of the frame, and the pipe fixing device is movably connected to the pipe adjusting devices at both ends of the frame. This invention has the advantage of good locking effect."

[0004] In the process of realizing this application, the inventors discovered that the existing technology has the following problems: existing submarine pipelines are usually laid in sections. Due to the large number of circumferential welds on site, the submarine pipelines laid in sections have problems such as concentrated welding defects, mismatched strength, sensitivity to stress concentration and accelerated corrosion, which become structural weak links. At the same time, the harsh marine environment exacerbates the difficulty of construction quality control and the cost of underwater maintenance is extremely high, which significantly increases the risk of joint failure. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a continuous pultrusion laying production system for pressure-resistant fiberglass pipes, which solves the problem that existing submarine pipelines mainly use segmented laying.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a continuous pultrusion laying pressure-resistant fiberglass pipe production system, comprising a barge and a floating chain, wherein a track is fixedly installed on the upper surface of the barge, a set of movable wheels is slidably installed on the surface of the track, and a movable platform is installed above the set of movable wheels;

[0007] A clamp release device is fixedly installed on one side of the upper end of the barge, and a pipe release device is fixedly connected to one side of the clamp release device. A servo push-pull device is fixedly installed on the upper surface of the barge near the clamp release device, and the output end of the servo push-pull device is fixedly connected to the mobile platform.

[0008] Preferably, two traction machines are fixedly connected to one side of the upper surface of the mobile platform, and a mold is fixedly connected to one side of the two traction machines.

[0009] Preferably, a heating plate is fixedly provided at the middle position of the outer surface of the mold, and a glue injection tube is fixedly provided on one side of the front of the mold.

[0010] Preferably, a circling machine is fixedly installed at the middle position of the upper surface of the mobile platform, and a mandrel anchor is fixedly installed on the upper surface of the mobile platform near the circling machine.

[0011] Preferably, a yarn frame is fixedly provided on one side of the upper surface of the mobile platform, and a yarn guide plate is fixedly provided on the upper surface of the mobile platform near the yarn frame.

[0012] Preferably, the servo push-pull device includes a support base, a hydraulic tank is fixedly installed on the upper end of the support base, and two hydraulic rods are connected to one side of the hydraulic tank.

[0013] Preferably, the clamping device includes a support platform, a control box is fixedly mounted on the support platform, and a lower clamping plate is fixedly mounted on the upper surface of the control box.

[0014] Preferably, a support frame is fixedly installed on the upper surface of the control box, and two hydraulic cylinders are fixedly installed on the upper surface of the support frame, with upper clamping plates fixedly installed at the output ends of the two hydraulic cylinders.

[0015] Preferably, the pipeline release device includes a release guide rail, and a float is fixedly installed at the bottom end of one side of the release guide rail.

[0016] Preferably, the float chain includes two counterweights, each counterweight having a fixed buckle at its upper end, a connecting pipe fixedly installed on one side of each counterweight, a floating airbag fixedly installed at one end of each connecting pipe, multiple locking buckles fixedly installed on one side of one of the two counterweights, and multiple locking slots opened on the other side of the two counterweights.

[0017] Working principle: On the barge and mobile platform, fiberglass yarn is supplied by the yarn rack and arranged by the yarn guide plate. It is then reinforced by the winding machine. The inner cavity is supported by the mandrel anchor frame. Resin is injected into the mold and cured by heating. The pipe is then continuously conveyed forward by the traction machine. At the same time, the clamping device clamps the pipe, and the servo push-pull device drives the mobile platform to retreat and store the pipe. Then the clamping device releases the pipe, the barge moves forward, and the pipe is gently released into the water by the release device. Finally, the counterweight of the modular float chain provides sinking force to stably lay it on the seabed. The inflation of the buoyant airbag can realize the recovery of the counterweight, thus completing the integrated operation of continuous offshore manufacturing and long-distance laying of fiberglass pipe.

[0018] This invention provides a continuous pultrusion laying production system for pressure-resistant fiberglass pipes. It has the following advantages:

[0019] 1. This invention provides a continuous pultrusion laying production system for pressure-resistant fiberglass pipes. By integrating the continuous pultrusion molding production line onto a barge mobile platform, it realizes the integrated operation of continuous offshore manufacturing and synchronous laying of fiberglass pipes. This completely avoids the problem of numerous on-site circumferential welds caused by traditional segmented laying methods, eliminates structural weak links such as concentrated welding defects, strength mismatch, stress concentration sensitivity, and accelerated corrosion, significantly reduces the difficulty of construction quality control and underwater maintenance costs in harsh marine environments, effectively reduces the risk of joint failure, and at the same time achieves stable seabed laying and reusability of pipelines through a modular floating chain counterweight system, greatly improving the reliability, economy, and operational efficiency of long-distance seabed pipeline laying. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a front view schematic diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the mobile platform of the present invention. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the structure of the mobile platform of the present invention. Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the servo push-pull device of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the clamp release device of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the float chain of the present invention.

[0028] The components include: 1. Yarn frame; 2. Yarn guide plate; 3. Mandrel anchor frame; 4. Wrapping machine; 5. Mold; 6. Heating plate; 7. Traction machine; 8. Servo push-pull device; 9. Clamp release device; 10. Pipe release device; 11. Float chain; 12. Glue injection pipe; 13. Moving platform; 14. Moving wheel set; 15. Track; 16. Barge; 801. Hydraulic tank; 802. Support base; 803. Hydraulic rod; 901. Hydraulic cylinder; 902. Upper clamping plate; 903. Lower clamping plate; 904. Control box; 905. Foundation; 906. Support frame; 1001. Release guide rail; 1002. Float; 1101. Fixing buckle; 1102. Buoyancy airbag; 1103. Locking buckle; 1104. Counterweight; 1105. Connecting pipe; 1106. Locking groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1-5 As shown, this embodiment of the invention provides a continuous pultrusion laying pressure-resistant fiberglass pipe production system, including a barge 16 and a floating chain 11. A track 15 is fixedly installed on the upper surface of the barge 16, a movable wheel set 14 is slidably installed on the surface of the track 15, and a movable platform 13 is installed above the movable wheel set 14.

[0031] A clamping device 9 is fixedly installed on one side of the upper end of the barge 16. A pipe release device 10 is fixedly connected to one side of the clamping device 9. A servo push-pull device 8 is fixedly installed on the upper surface of the barge 16 near the clamping device 9. The output end of the servo push-pull device 8 is fixedly connected to the mobile platform 13.

[0032] Specifically, during use, the reciprocating sliding of the mobile platform 13 is achieved by setting up a track 15 and a moving wheel set 14 on the barge 16. With the clamping and loosening action of the clamping device 9 and the precise push and pull control of the servo push and pull device 8, the winding pultrusion production line can continuously produce pipes on the barge 16, while storing and releasing the formed pipes in sections. Finally, the pipes are laid smoothly into the seabed through the pipe release device 10 and the buoy 1002 chain, thus realizing the integrated operation of continuous offshore manufacturing and long-distance laying of FRP pipes.

[0033] Two traction machines 7 are fixedly connected to one side of the upper surface of the mobile platform 13. A mold 5 is fixedly connected to one side of the two traction machines 7. A heating plate 6 is fixedly installed in the middle of the outer surface of the mold 5. A glue injection tube 12 is fixedly installed on one side of the front of the mold 5. A winding machine 4 is fixedly installed in the middle of the upper surface of the mobile platform 13. A mandrel anchor 3 is fixedly installed on the upper surface of the mobile platform 13 near the winding machine 4. A yarn frame 1 is fixedly installed on one side of the upper surface of the mobile platform 13. A yarn guide plate 2 is fixedly installed on the upper surface of the mobile platform 13 near the yarn frame 1.

[0034] Specifically, during use, the upper surface of the mobile platform 13 is sequentially arranged with a yarn rack 1, a yarn guide plate 2, a mandrel anchor 3, a winding machine 4, a mold 5, and a traction machine 7. The yarn rack 1 is used to store and supply fiberglass yarn, the yarn guide plate 2 guides the yarn bundles according to the design, the mandrel anchor 3 fixes the mandrel as the forming reference for the inner cavity of the pipe, the winding machine 4 winds the circumferential yarn tension onto the longitudinal yarn to enhance the radial strength, the mold 5 injects resin through the injection tube 12 and heats and cures it through the heating plate 6 to form the pipe, and the traction machine 7 alternately clamps and drags the cured pipe forward. All components work together to complete the continuous pultrusion molding process of the pressure-resistant fiberglass pipe.

[0035] like Figure 6 As shown, the servo push-pull device 8 includes a support base 802, and a hydraulic tank 801 is fixedly installed on the upper end of the support base 802. Two hydraulic rods 803 are connected to one side of the hydraulic tank 801.

[0036] Specifically, during use, the servo push-pull device 8 is fixed to the upper surface of the barge 16 via the support base 802. The hydraulic tank 801 serves as a power source to provide precise and controllable hydraulic driving force to the two hydraulic rods 803. The extension and retraction of the hydraulic rods 803 realizes the push-pull control of the mobile platform 13, thereby driving the mobile platform 13 to slide back and forth along the track 15 to complete the cycle of pipeline storage and platform reset.

[0037] like Figure 7 As shown, the clamping device 9 includes a support platform 905, a control box 904 is fixedly installed on the support platform 905, a lower clamping plate 903 is fixedly installed on the upper surface of the control box 904, a support frame 906 is fixedly installed on the upper surface of the control box 904, two hydraulic cylinders 901 are fixedly installed on the upper surface of the support frame 906, and an upper clamping plate 902 is fixedly installed at the output end of the two hydraulic cylinders 901.

[0038] Specifically, during use, the clamping device 9 is fixed to the stern of the barge 16 via the support platform 905. The control box 904 controls two hydraulic cylinders 901 to drive the upper clamping plate 902 to move up and down relative to the lower clamping plate 903, thereby realizing the clamping and loosening of the pipeline. When clamping, the pipeline is fixed so that the moving platform 13 and the barge 16 are relatively displaced to store the pipeline. When loosening, the pipeline is released to allow the barge 16 to move forward for laying, thus completing the cyclic control of pipeline step-by-step laying.

[0039] like Figure 2 As shown, the pipeline release device 10 includes a release guide rail 1001, and a float 1002 is fixedly installed at the bottom end of one side of the release guide rail 1001.

[0040] Specifically, when in use, the pipeline release device 10 provides transition support and guidance for the pipeline from the barge 16 to the sea surface through the release guide rail 1001, and the bottom buoy 1002 provides buoyancy support to reduce the bending stress of the pipeline, together achieving smooth entry of the pipeline into the water and guiding the laying direction.

[0041] like Figure 8 As shown, the float chain 11 includes two counterweights 1104. Each counterweight 1104 has a fixed buckle 1101 fixedly installed at its upper end. Each counterweight 1104 has a connecting pipe 1105 fixedly installed on one side. Each connecting pipe 1105 has a floating airbag 1102 fixedly installed at one end. One side of one of the two counterweights 1104 has multiple locking buckles 1103 fixedly installed. The other side of the two counterweights 1104 has multiple locking slots 1106.

[0042] Specifically, during use, the buoy 1002 chain provides sinking force to the pipeline through two counterweights 1104, making it stable on the seabed. The fixing buckle 1101 is used to connect and fix it to the pipeline. When the buoyancy airbag 1102 connected to the connecting pipe 1105 is inflated, it can generate buoyancy to drive the counterweights 1104 to float up and be retrieved. The two counterweights 1104 are quickly connected and assembled through the cooperation of the locking buckle 1103 and the locking groove 1106, thus forming a detachable and recyclable modular counterweight structure to adapt to the laying requirements of pipelines of different lengths.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous pultrusion laying pressure-resistant fiberglass pipe production system, comprising a barge (16) and a floating chain (11), characterized in that: The barge (16) is fixedly provided with a track (15) on its upper surface, and a set of movable wheels (14) is slidably provided on the surface of the track (15). A movable platform (13) is provided above the set of movable wheels (14). A clamp release device (9) is fixedly installed on one side of the upper end of the barge (16), and a pipe release device (10) is fixedly connected to one side of the clamp release device (9). A servo push-pull device (8) is fixedly installed on the upper surface of the barge (16) near the clamp release device (9), and the output end of the servo push-pull device (8) is fixedly connected to the mobile platform (13).

2. The continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 1, characterized in that: Two traction machines (7) are fixedly connected to one side of the upper surface of the mobile platform (13), and a mold (5) is fixedly connected to one side of the two traction machines (7).

3. The continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 2, characterized in that: A heating plate (6) is fixedly installed in the middle of the outer surface of the mold (5), and a glue injection tube (12) is fixedly installed on one side of the front of the mold (5).

4. The continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 1, characterized in that: A circling machine (4) is fixedly installed at the middle position of the upper surface of the mobile platform (13), and a mandrel anchor (3) is fixedly installed on the side of the upper surface of the mobile platform (13) near the circling machine (4).

5. The continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 1, characterized in that: A yarn rack (1) is fixedly installed on one side of the upper surface of the mobile platform (13), and a yarn guide plate (2) is fixedly installed on the side of the upper surface of the mobile platform (13) near the yarn rack (1).

6. The continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 1, characterized in that: The servo push-pull device (8) includes a support base (802), and a hydraulic tank (801) is fixedly installed on the upper end of the support base (802). Two hydraulic rods (803) are connected to one side of the hydraulic tank (801).

7. The continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 1, characterized in that: The loosening device (9) includes a support (905), a control box (904) is fixedly installed above the support (905), and a lower clamping plate (903) is fixedly installed on the upper surface of the control box (904).

8. A continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 7, characterized in that: A support frame (906) is fixedly installed on the upper surface of the control box (904), and two hydraulic cylinders (901) are fixedly installed on the upper surface of the support frame (906). An upper clamping plate (902) is fixedly installed at the output end of the two hydraulic cylinders (901).

9. A continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 1, characterized in that: The pipeline release device (10) includes a release guide rail (1001), and a float (1002) is fixedly installed at the bottom end of one side of the release guide rail (1001).

10. A continuous pultrusion laying pressure-resistant fiberglass pipe production system according to claim 1, characterized in that: The float chain (11) includes two counterweights (1104). Each of the two counterweights (1104) has a fixed buckle (1101) fixedly installed at its upper end. Each of the two counterweights (1104) has a connecting pipe (1105) fixedly installed on one side. Each of the two connecting pipes (1105) has a floating airbag (1102) fixedly installed at one end. One of the two counterweights (1104) has multiple locking buckles (1103) fixedly installed on one side. The other of the two counterweights (1104) has multiple locking slots (1106) opened on one side.

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