Seabed pipeline erecting device for ocean engineering

Abstract

The invention belongs to the related technical field of pipeline erection, and particularly discloses an ocean engineering submarine pipeline erection device which comprises an erection beam, transverse frames are symmetrically arranged on the outer sides of the two ends of the erection beam correspondingly, sliding clamping mechanisms are arranged above the two transverse frames at the same end correspondingly, and frame bases are arranged above the two ends of the erection beam correspondingly; sliding tables are slidably mounted on the upper portions of the outer portions of the frame bases, fixing rods are arranged on the upper portions of the interiors of the sliding tables, reverse pipe erecting arc-shaped plates are arranged on the two sides of the outer portions of the fixing rods, arc-shaped rods are jointly arranged on the upper portions of the outer portions of the two reverse pipe erecting arc-shaped plates, and pipe pressing mechanisms are arranged on the top walls of the inner sides of the arc-shaped rods. And pre-embedded weighting mechanisms are arranged in the ends, away from the erecting beams, of the transverse frames. The marine engineering pipeline erecting device can remarkably improve the efficiency, safety and environmental adaptability of marine engineering pipeline erecting.

Description

Technical Field

[0001] The invention belongs to the technical field related to pipeline erection, and specifically discloses a marine engineering submarine pipeline erection device. Background Art

[0002] Marine engineering refers to new construction, reconstruction, and expansion projects that are aimed at developing, utilizing, protecting, and restoring marine resources, and the main body of the project is located on the seaward side of the coastline. It is generally believed that the main contents of marine engineering can be divided into two parts: resource development technology and equipment and facility technology, including reclamation, offshore dam projects, artificial islands, offshore and submarine material storage facilities, cross-sea bridges, submarine tunnel projects, submarine pipelines, submarine electric (optical) cable projects, marine mineral resource exploration and development and its ancillary projects, offshore tidal power stations, wave power stations, temperature difference power stations and other marine energy development and utilization projects, large-scale seawater aquaculture farms, artificial reef projects, salt fields, seawater desalination and other seawater comprehensive utilization projects, marine entertainment and sports, and landscape development projects. The pipeline erection device is a device for supporting and installing submarine pipelines; The existing erection equipment has poor adaptability to the seabed terrain and insufficient fixing force in soft soil or rock layers. The embedded structure is prone to slippage or loosening due to ocean current impact or differences in soil bearing capacity. In addition, the connection of the pipeline relies on flanges. If misalignment occurs, the entire pipeline needs to be disassembled and reinstalled, especially in the seabed environment. The immature technology in high-pressure environments will further aggravate the risks. Summary of the invention

[0003] The purpose of the present invention is to solve the problems existing in the background technology, and a marine engineering submarine pipeline erection device is proposed, including an erection beam, cross frames are symmetrically arranged on the outer sides of both ends of the erection beam, and sliding clamping mechanisms are arranged above the two groups of cross frames at the same end, and frames are arranged above both ends of the erection beam. Slides are slidably installed above the outer sides of the frames, and fixed rods are arranged above the inner sides of the slides. Reverse pipe racking arc plates are arranged on both sides of the outer sides of the fixed rods, and arc rods are commonly arranged above the outer sides of the two reverse pipe racking arc plates, and a pipe pressing mechanism is arranged on the inner top wall of the arc rod, and a pre-buried weighting mechanism is arranged inside the end of the cross frame away from the erection beam.

[0004] Preferably, the sliding locking mechanism includes a baffle slidably installed above the outside of the frame, a sliding shell is provided at the bottom end of the baffle, a push rod is connected to the inside of the sliding shell through an elastic mechanism, shift wheels are installed below both sides of the push rod, a locking assembly is provided on the upper surface of the cross frame, and one side of the baffle is connected to the outer wall of the arc plate of the reverse frame tube.

[0005] Preferably, the elastic mechanism comprises a pressure spring with one end arranged on the top wall inside the sliding shell, the lower end of the pressure spring is connected to the upper surface of the push rod, and the push rod slides inside the sliding shell.

[0006] Preferably, the clamping component includes arc-shaped grooves respectively opened on both sides of the upper surface of the cross frame at equal distances in the horizontal direction. The arc-shaped grooves correspond to the rolling positions of the moving wheels, and a positioning bar is arranged on the upper surface of the cross frame and close to the space between adjacent two groups of arc-shaped grooves.

[0007] Preferably, the pipe pressing mechanism includes a vertical rod fixedly installed on the inner top wall of the arc-shaped rod. An arc-shaped frame is slidably inserted through the lower part of the vertical rod. A positioning spring is arranged above the vertical rod. Both ends of the positioning spring are respectively connected with the top wall of the arc-shaped rod and the outer surface of the arc-shaped frame. Extrusion rods are respectively arranged at both ends of the arc-shaped frame. Fixed blocks are fixedly arranged at both ends of the two extrusion rods. Clamping seats are arranged on the lower end surfaces of the four groups of fixed blocks. The overall shape of the clamping seat is arc-shaped, and a V-shaped abutting block extends out below the outside. Both ends of the arc-shaped rod are correspondingly connected with guide posts through connecting rods arranged. The two guide posts are respectively vertically arranged on the outer surfaces of the arc-shaped plates of the reverse pipe racks at corresponding positions.

[0008] Preferably, the embedded weight increasing mechanism includes a ring sleeve fixedly clamped inside the cross frame and far away from one end of the erection beam. An embedded rod is installed inside the ring sleeve. A screw pin is threadedly inserted through one side of the cross frame. One end of the screw pin extends into the ring sleeve and abuts against the outer surface of the embedded rod. Conical soil pieces are arranged at equal distances along the circumferential direction below the outer part of the embedded rod. A conical head is installed at the lower end of the embedded rod.

[0009] Preferably, a circular ring is slidably arranged on the outer part of the embedded rod. Cables are arranged at equal distances along the circumferential direction on the outer part of the circular ring. Gravity balls are arranged at the lower ends of the cables. Multiple thorns are arranged on the outer surface of the gravity balls.

[0010] Preferably, cross rods are arranged on the upper surfaces of the cross frame close to both ends. A flow dividing plate is arranged outside the cross rods. Flaps extend backward from both sides of the flow dividing plate. Multiple flow guiding pieces are arranged on the outer surfaces of the flow dividing plate and the flaps.

[0011] Compared with the prior art, the present invention has the following beneficial effects: Through the arranged sliding clamping mechanism, it can cooperate with the sliding table to move during pipe erection. When there are errors and misalignments during the installation of the front-end pipe, the baffle on any side can be pushed to move, so as to promote the movement of the sliding table, the fixed rod, and the arc-shaped plate of the reverse pipe rack. Thus, the pipe erected above can be accurately adjusted in position through the movement of the sliding table, ensuring the flange alignment connection of the two pipes.

[0012] Through the provided elastic mechanism and clamping components, the baffle can be instantaneously limited during movement. Therefore, no matter where the sliding table moves to, the moving wheel engages with the corresponding arc-shaped groove at the corresponding position. Thus, the pressure spring can exert pressure on the moving wheel, prompting the moving wheel to avoid displacement under no pushing force and affecting the pipe racking.

[0013] By setting a circular ring, a cable, a gravity ball, and a barb on the outside of the embedded rod, it can not only cooperate with the embedded rod to pre-embed and fix seabeds with different heights, but also make the gravity ball and the barb correspond to the upper surface of the seabed. The gravity ball and the barb cooperate with the embedded rod to enhance the grip force in the surrounding area of the embedded rod and can well face the undersea ocean current.

[0014] By setting a flow splitter plate and a flipper above the two ends of the cross-frame, the stability of the sliding table and the baffle can be enhanced. When the ocean current arrives, in the sliding direction of the sliding table and the baffle, the ocean current is driven away from the reverse pipe racking arc-shaped plate, avoiding the sliding table from moving due to the flow rate of the ocean current. At the same time, the setting of the reverse pipe racking arc-shaped plate enables the seawater to change the direction of flowing to the outside of the pipeline when surging, reducing the impact of the ocean current and making the pipeline erection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of another angle of the overall connection structure of the present invention; Figure 3 is a schematic diagram of the connection structure between the reverse pipe racking arc-shaped plate and the sliding table of the present invention; Figure 4 is a schematic diagram of the connection structure between the cross-frame and the flow splitter plate of the present invention; Figure 5 is a schematic diagram of the connection structure of the pipe pressing mechanism of the present invention; Figure 6 is a schematic diagram of the disassembled connection structure between the baffle and the sliding shell of the present invention; Figure 7 For the present invention Figure 6 is an enlarged schematic diagram of the structure at A in

[0016] In the figure: 1, erection beam; 2, cone head; 3, cross frame; 4, ring; 5, cable; 6, soil cone piece; 7, gravity ball; 8, embedded rod; 9, paddle; 10, reverse frame pipe arc plate; 11, collar; 12, barb; 13, screw pin; 14, frame base; 15, baffle; 16, arc rod; 17, sliding table; 18, fixed rod; 19, shunt plate; 20, drainage piece; 21, cross rod; 22, clamping seat; 23, extrusion rod; 24, guide post; 25, positioning spring; 26, arc frame; 27, connecting rod; 28, fixed block; 29, pressing spring; 30, sliding shell; 31, moving wheel; 32, arc groove; 33, abutting strip; 34, abutting rod; 35, vertical rod; 36, V-shaped abutting block. Detailed implementation manner

[0017] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0018] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0019] As Figures 1-7 shown, an offshore engineering submarine pipeline erection device includes an erection beam 1. Cross frames 3 are symmetrically arranged on the outer sides of both ends of the erection beam 1. Sliding clamping mechanisms are arranged above two groups of cross frames 3 at the same end. Frame bases 14 are arranged above both ends of the erection beam 1. Sliding tables 17 are slidably installed above the outer parts of the frame bases 14. Fixed rods 18 are arranged above the inner parts of the sliding tables 17. Reverse frame pipe arc plates 10 are arranged on both sides of the outer parts of the fixed rods 18. An arc rod 16 is arranged above the outer parts of the two reverse frame pipe arc plates 10. A pipe pressing mechanism is arranged on the inner top wall of the arc rod 16. Embedded weight adding mechanisms are arranged inside the ends of the cross frames 3 far away from the erection beam 1.

[0020] The sliding clamping mechanism includes a baffle 15 slidably mounted above the outside of the frame base 14. A sliding shell 30 is provided at the bottom end of the baffle 15. An elastic mechanism is arranged inside the sliding shell 30 and connected to a resisting rod 34. Moving wheels 31 are installed below both sides of the resisting rod 34. A clamping component is arranged on the upper surface of the cross frame 3. One side of the baffle 15 is connected to the outer wall of the arc-shaped plate 10 of the reverse frame pipe. The elastic mechanism includes a pressure spring 29 with one end arranged on the inner top wall of the sliding shell 30. The lower end of the pressure spring 29 is connected to the upper surface of the resisting rod 34. The resisting rod 34 slides inside the sliding shell 30. The clamping component includes arc-shaped grooves 32 respectively opened at equal distances on both sides of the upper surface of the cross frame 3 along the horizontal direction. The arc-shaped grooves 32 correspond to the rolling positions of the moving wheels 31. Positioning bars 33 are arranged on the upper surface of the cross frame 3 and close to the spaces between adjacent groups of arc-shaped grooves 32. When pushing the baffle 15, the moving wheels 31 roll repeatedly in multiple arc-shaped grooves 32, and the pressure spring 29 compresses and stores energy. Until the pipes are aligned, release the baffle 15, the pressure spring 29 releases pressure, pushes the resisting rod 34 to move downward, and the moving wheels 31 are clamped into the corresponding arc-shaped grooves 32, realizing the rapid positioning and locking of the sliding table 17; The positioning bars 33 can limit the excessive lateral movement of the moving wheels 31 at the arc-shaped grooves 32.

[0021] The pipe pressing mechanism includes a vertical rod 35 fixedly installed on the inner top wall of the arc-shaped rod 16. An arc-shaped frame 26 is slidably inserted below the outside of the vertical rod 35. A positioning spring 25 is arranged above the outside of the vertical rod 35. Both ends of the positioning spring 25 are respectively connected to the top wall of the arc-shaped rod 16 and the outer surface of the arc-shaped frame 26. Extrusion rods 23 are respectively arranged at both ends of the arc-shaped frame 26. Fixed blocks 28 are fixedly arranged at both ends of the two extrusion rods 23. Clamping seats 22 are arranged on the lower end surfaces of the four groups of fixed blocks 28. The overall shape of the clamping seats 22 is arc-shaped, and V-shaped abutting blocks 36 extend out below the outside. Connecting rods 27 are respectively arranged at both ends inside the arc-shaped rod 16 and correspondingly connected to guide columns 24. The two guide columns 24 are respectively vertically arranged on the outer surfaces of the arc-shaped plates 10 of the reverse frame pipes at corresponding positions; After the pipe is placed on the arc-shaped plate 10 of the reverse frame pipe, the positioning spring 25 promotes the arc-shaped frame 26 to descend through its own elastic force, and the clamping seats 22 elastically clamp the pipe through the V-shaped abutting blocks 36; By setting the clamping seats 22 and the extrusion rods 23 with a certain length, the contact area with the pipe is increased, thereby enhancing the stability of clamping the pipe.

[0022] The embedded weight mechanism includes a collar 11 fixedly installed inside the cross-frame 3 and away from one end of the erection beam 1. An embedded rod 8 is installed inside the collar 11. A screw pin 13 is threaded through the inside of one side of the cross-frame 3. One end of the screw pin 13 extends into the inside of the collar 11, and the end abuts against the outer surface of the embedded rod 8. Along the circumferential direction, tapered soil pieces 6 are equidistantly arranged below the outside of the embedded rod 8. A tapered head 2 is installed at the lower end of the embedded rod 8. A circular ring 4 is slidably arranged outside the embedded rod 8. Cables 5 are equidistantly arranged along the circumferential direction outside the circular ring 4. Gravity balls 7 are arranged at the lower ends of the cables 5. Multiple barbs 12 are arranged on the outer surface of the gravity balls 7; After the embedded rod 8 is inserted into the seabed, the gravity balls 7 descend due to their own weight, the barbs 12 penetrate into the bottom layer, the contact area between the tapered soil pieces 6 and the deep seabed increases, enhancing the uplift resistance of the embedded rod 8. After the cables 5 are tightened, a radially fixed network (evenly arranged circumferentially) is formed, enhancing the anti-slip performance; After the embedded rod 8 is fixed, the circular ring 4 outside it slides down along the rod body to the seabed surface, driving the cables 5 and the gravity balls 7 to touch the bottom. The gravity balls 7 sink into the soft soil layer of the seabed due to their own weight, and the barbs 12 on the surface form multiple anchor points, thus being able to firmly contact the seabed surface layer; It should be specially noted that the length of the cable 5 can be adjusted according to the actual installation environment.

[0023] Cross bars 21 are arranged on the upper surfaces of both ends of the cross-frame 3. Flow deflector plates 19 are arranged outside the cross bars 21. Flap plates 9 extend backward from both sides of the flow deflector plates 19. Multiple sets of flow guiding fins 20 are arranged on the outer surfaces of the flow deflector plates 19 and the flap plates 9; The flow deflector plate 19 has a longitudinal airfoil cross-section. When impacted by ocean currents, the water flow is divided into upper and lower streams. As Figure 4 shown, the flow guiding fins 20 are separated in the middle and extend upward and downward in a curved trajectory. Therefore, when the ocean current contacts them, the upper water flow flows along the upper surface of the flow deflector plate 19 to the rear of the top of the device, forming an upper water flow.

[0024] The lower water flow flows along the lower surface of the flow deflector plate 19 to the rear of the bottom of the device, forming a lower water flow. When the water flow passes through the curved flow deflector plate 19, the path is longer and it is forced to accelerate, prompting the ocean current to quickly bypass the main body of the device, reducing the direct impact force.

[0025] Working principle: When in use, adjust the insertion depth of the embedded rod 8 according to the seabed topography. The tapered head 2 and the tapered soil pieces 6 cut into the seabed. The screw pin 13 is inserted into the inside of the collar 11 to lock the position of the embedded rod 8 at the end. The gravity balls 7 hang down by themselves through the cables 5, and the barbs 12 penetrate into the bottom layer of the seabed, enhancing the horizontal anti-slip ability.

[0026] The embedded rod 8 at the cross frame 3 can have different insertion heights into the seabed according to the height of the seabed. After the embedded rod 8 is vertically installed, the screw pin 13 is inserted into the inner part of the ring sleeve 11, so that the end of the screw pin 13 is kept in a clamped state with the sliding embedded rod 8. With the help of the circular ring 4 and the cable 5, the lower gravity ball 7 can be made to contact the upper surface of the seabed. Multiple barbs 12 on the outer surface of the gravity ball 7 can penetrate into the seabed to enhance the stability of the embedded rod 8. After the embedded rod 8 is assembled, the cross frame 3 and the erection beam 1 can lay pipes on the seabed; Push the baffle 15, the moving wheel 31 rolls on the upper surface of the cross frame 3, and the sliding table 17 drives the reverse pipe erection arc plate 10 to move to adjust the position of the pipeline. The moving wheel 31 rolls inside multiple arc grooves 32 and squeezes the pressure spring 29 inside the sliding shell 30 until the two pipeline flanges correspond to each other. The moving wheel 31 is clamped inside the corresponding arc groove 32. In the absence of driving force, the pressure spring 29 can firmly clamp the abutting rod 34 above, forcing the abutting rod 34 to be clamped inside the corresponding arc groove 32, so that the position of the sliding table 17 can be positioned; Place the pipeline between the two reverse pipe erection arc plates 10. The positioning spring 25 automatically contracts according to the diameter of the pipeline, forcing the lower V-shaped abutting block 36 to abut against the outer surface of the pipeline. The clamping seat 22 can abut against the side elevation of the pipeline by means of the V-shaped abutting block 36, and the clamping seat 22 itself has a certain length, which can enhance the stability of pipe clamping; When impacted by ocean currents, the reverse pipe erection arc plates 10, the flow dividing plates 19 and the deflectors 9 at both ends of the cross frame 3 can guide the ocean currents to flow through both sides of the device. The deflector 9 guides the eddy currents away from the pipeline connection, reducing the lateral thrust of the ocean currents. When the curved surface structure of the reverse pipe erection arc plate 10 contacts the water flow, it will guide the water flow to one side and downward, causing the lateral impact force to be converted into a longitudinal pressure (the drainage direction of the longitudinal pressure is downward transition). Therefore, when the ocean current contacts the reverse pipe erection arc plate 10, the lateral impact force can be weakened, thereby enhancing the stability of the baffle 15 and the sliding table 17 when clamping the pipeline and preventing the pipeline from shifting.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An undersea pipeline erection device for ocean engineering, comprising an erection beam (1), characterized in that: On the outer sides of both ends of the erection beam (1), cross beams (3) are symmetrically arranged respectively. Above the two groups of cross beams (3) at the same end, sliding clamping mechanisms are arranged. Above both ends of the erection beam (1), seat brackets (14) are arranged. Above the outer parts of the seat brackets (14), sliding platforms (17) are slidably installed. Above the inner parts of the sliding platforms (17), fixed rods (18) are arranged. On both sides of the outer parts of the fixed rods (18), reverse pipe support arc-shaped plates (10) are arranged. Above the outer parts of the two reverse pipe support arc-shaped plates (10), an arc-shaped rod (16) is arranged. On the inner top wall of the arc-shaped rod (16), a pipe pressing mechanism is arranged. Inside the ends of the cross beams (3) far away from the erection beam (1), embedded weight mechanisms are arranged.

2. The offshore engineering subsea pipeline erection device according to claim 1, wherein: The sliding clamping mechanism includes a baffle (15) slidably installed above the outer part of the seat bracket (14). At the bottom end of the baffle (15), a sliding shell (30) is arranged. Inside the sliding shell (30), a resisting rod (34) is connected through an elastic mechanism arranged. Below both sides of the resisting rod (34), moving wheels (31) are installed. On the upper surface of the cross beam (3), a clamping component is arranged. One side of the baffle (15) is connected with the outer wall of the reverse pipe support arc-shaped plate (10).

3. The offshore engineering subsea pipeline erection device according to claim 2, characterized in that: The elastic mechanism includes a pressing spring (29) with one end arranged on the inner top wall of the sliding shell (30). The lower end of the pressing spring (29) is connected with the upper surface of the resisting rod (34). The resisting rod (34) slides inside the sliding shell (30).

4. The offshore engineering submarine pipeline erection device according to claim 2, characterized in that: The clamping component includes arc-shaped grooves (32) respectively opened at equal distances along the horizontal direction on both sides of the upper surface of the cross beam (3). The arc-shaped grooves (32) correspond to the rolling positions of the moving wheels (31). On the upper surface of the cross beam (3) and near the positions between adjacent two groups of arc-shaped grooves (32), resisting strips (33) are arranged.

5. The marine engineering subsea pipeline erection device according to claim 1, characterized in that: The pipe pressing mechanism includes a vertical rod (35) fixedly installed on the inner top wall of the arc-shaped rod (16). Below the outer part of the vertical rod (35), an arc-shaped bracket (26) is slidably inserted. Above the outer part of the vertical rod (35), a positioning spring (25) is arranged. The two ends of the positioning spring (25) are respectively connected with the top wall of the arc-shaped rod (16) and the outer surface of the arc-shaped bracket (26). At both ends of the arc-shaped bracket (26), extrusion rods (23) are respectively arranged. At both ends of the two extrusion rods (23), fixing blocks (28) are fixedly arranged. On the lower end surfaces of the four groups of fixing blocks (28), clamping seats (22) are arranged. The overall shape of the clamping seats (22) is arc-shaped, and a V-shaped resisting block (36) extends out below the outer part. At both ends inside the arc-shaped rod (16), guide columns (24) are correspondingly connected through connecting rods (27) arranged. The two guide columns (24) are respectively vertically arranged on the outer surfaces of the corresponding reverse pipe support arc-shaped plates (10).

6. The offshore engineering submarine pipeline erection device according to claim 1, characterized in that: The embedded weight mechanism includes a collar (11) fixedly installed inside the cross frame (3) and away from one end of the erection beam (1). An embedded rod (8) is installed inside the collar (11). A screw pin (13) is inserted through the thread inside one side of the cross frame (3). One end of the screw pin (13) extends into the collar (11) and abuts against the outer surface of the embedded rod (8). Conical soil pieces (6) are arranged at equal intervals along the circumferential direction below the outside of the embedded rod (8). A conical head (2) is installed at the lower end of the embedded rod (8).

7. The offshore engineering submarine pipeline erection device according to claim 6, wherein: A circular ring (4) is slidably arranged outside the embedded rod (8). Cables (5) are arranged at equal intervals along the circumferential direction outside the circular ring (4). Gravity balls (7) are arranged at the lower ends of the cables (5). Multiple barbs (12) are arranged on the outer surface of the gravity balls (7).

8. The submarine pipeline erection device for ocean engineering according to claim 1, characterized in that: Cross bars (21) are arranged on the upper surfaces near both ends of the cross frame (3). A flow dividing plate (19) is arranged outside the cross bars (21). Flappers (9) extend backward from both sides of the flow dividing plate (19). Multiple groups of drainage vanes (20) are arranged on the outer surfaces of the flow dividing plate (19) and the flappers (9).

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