Anti-impact bending reinforcing protection device for marine flexible pipe cable
By designing the impact bending reinforcement protection device of the buffer barrel and connecting insert on the marine flexible pipe cable, the damage caused by impact load in the flexible pipe cable in complex marine environments is solved, and effective protection and life of the flexible pipe cable are achieved.
Patent Information
- Application Number
- CN202422172755.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The complex stress caused by the water flow and floating facilities at the connecting flange position caused by the rise and fall of the existing marine flexible pipe cables, resulting in uncontrollable impact loads of the curved reinforcement, which cannot effectively protect the flexible pipe cables, resulting in premature failure.
An impact bending reinforcement protection device is designed including a buffer barrel body and a connecting insert. The buffer barrel body is integrated cast by a polyurethane elastomer, and the inner and outer buffer rings are matched to absorb and slowly release the impact load through deformation of the buffer member. The connecting insert is fixed to the offshore platform flange through a screw.
Effectively limit and absorb the impact load of the pipe cable, protect the safety of the flexible pipe cable connection, reduce damage, and extend service life.
Smart Images
Figure CN223093425U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flexible cable protection devices, in particular to an impact-resistant and bending-strengthening protection device for marine flexible cables. Background Art
[0002] In the development of marine energy and resources, various infrastructures are connected and transmitted through flexible cables. Due to its good bending flexibility, it can withstand large bending deformations and meet the dynamic forces of floating facilities. Therefore, it is widely used in deep-sea development. However, at the connection flange position of the flexible cable to the water surface platform, due to the influence of water flow on the underwater cable, it is constantly swinging, and coupled with the heave of the floating facility itself, the force at the connection position is complex. Therefore, a bending strengthener is needed to protect the flexible cable. Currently, the bending strengthener used alone is an integrally cast elastic polyurethane cone. In a complex marine environment, there is a sudden change in bending stiffness at the flange position of the connection, and phenomena such as uncontrollable impact loads occur, which will cause the bending strengthener to bend further, making it insufficient to protect the flexible cable, resulting in damage and premature failure of the flexible cable. Summary of the Utility Model
[0003] The purpose of the utility model is to provide an impact-resistant and bending-strengthening protection device for marine flexible cables, which can solve the problems in the above background art, that is, when phenomena such as uncontrollable impact loads occur, it will cause the bending strengthener to bend further, making it insufficient to protect the flexible cable, resulting in damage and premature failure of the flexible cable.
[0004] The utility model adopts the following technical solutions to achieve the above purpose:
[0005] An impact-resistant and bending-strengthening protection device for marine flexible cables includes a bending strengthener arranged on the cable, and a buffer is arranged at the right end of the bending strengthener; the buffer includes a buffer barrel body, and a plurality of annular grooves are longitudinally and equidistantly arranged on the outer peripheral side of the buffer barrel body, so that the circumferential protruding part of the buffer barrel body forms an outer buffer ring.
[0006] Preferably, the buffer barrel body is integrally cast from a polyurethane elastomer.
[0007] Preferably, the middle part of the buffer barrel body has a first channel for the cable to pass through.
[0008] Preferably, a plurality of inner buffer rings are longitudinally arranged in the middle of the buffer barrel body.
[0009] Preferably, the number of the inner buffer rings is the same as the number of the annular grooves, and the inner buffer rings and the corresponding annular grooves are in the same horizontal direction.
[0010] Preferably, the buffer barrel body is connected to the bending reinforcement member through a connecting insert; the connecting insert includes a cage-shaped sleeve embedded in the right end of the bending reinforcement member, a first disc is fixed to the top of the cage-shaped sleeve, a cylinder is fixed to the top of the first disc, a second disc is fixed to the top of the cylinder, and the top of the second disc is fixedly connected to the buffer barrel body.
[0011] Preferably, the cage-shaped sleeve includes a plurality of U-shaped ribs circumferentially fixed to the bottom of the first disc, the bottoms of the plurality of U-shaped ribs are connected by a first annular rib, the outer ribs of the plurality of U-shaped ribs are connected by a second annular rib, and the inner ribs of the plurality of U-shaped ribs are respectively connected by upper and lower third annular ribs.
[0012] Preferably, a plurality of screw rods are circumferentially fixed to the top of the second disc, and the upper ends of the screw rods penetrate through the buffer barrel body.
[0013] Preferably, a plurality of ear seats are fixed to the outer peripheral side of the cylinder.
[0014] Preferably, second channels for cable and pipe harness to pass through are provided on the first disc, the cylinder, and the second disc.
[0015] Advantages of the present utility model:
[0016] (1) In the present utility model, when the cable and pipe harness undergoes a small swing, the bending reinforcement member bends and deforms, thereby restricting the swing of the cable and pipe harness and playing a buffering role; when the cable and pipe harness is subjected to an uncontrollable impact load, through the deformation of the buffer member, the overall bending moment is restricted and absorbed into the buffer body, and then slowly released, thereby protecting the safety of the cable and pipe harness connection.
[0017] (2) In an embodiment of the present utility model, through the cooperation of the inner buffer ring and the outer buffer ring, a better buffering effect can be achieved.
[0018] (3) In an embodiment of the present utility model, it is convenient to connect to the flange of the offshore platform through the screw rod. After the upper end of the screw rod passes through the flange hole of the flange, the nut is then screwed tightly onto the screw rod to complete the installation.
[0019] (4) In an embodiment of the present utility model, a plurality of ear seats are fixed to the outer peripheral side of the cylinder, and the staff can pull the ear seats to facilitate driving the device to move on the cable and pipe harness.
[0020] In the present utility model, when the cable and pipe harness is subjected to an uncontrollable impact load, through the deformation of the buffer member, the overall bending moment is restricted and absorbed into the buffer body, and then slowly released, thereby protecting the safety of the cable and pipe harness connection. Description of the Drawings
[0021] Figure 1 is a schematic structural diagram of the present utility model.
[0022] Figure 2 is an exploded view of the present utility model.
[0023] Figure 3 is a front view schematic diagram of the buffer barrel body.
[0024] Figure 4 is an internal structure diagram of the buffer barrel body.
[0025] Figure 5 is a schematic structural diagram of the connecting insert.
[0026] Figure 6 is a schematic structural diagram of the cage-shaped sleeve.
[0027] In the figure: 1 - pipe cable, 2 - bending reinforcement, 3 - buffer barrel body, 31 - annular groove, 32 - outer buffer ring, 33 - first channel, 34 - inner buffer ring, 4 - connecting insert, 41 - cage-shaped sleeve, 42 - first disc, 43 - cylinder, 44 - second disc, 411 - U-shaped rib, 412 - first annular rib, 413 - second annular rib, 414 - third annular rib, 45 - screw, 46 - ear seat, 47 - second channel. Specific embodiments
[0028] The present utility model will be further described below with reference to the accompanying drawings.
[0029] As Figures 1-4 shown, an anti-impact bending reinforcement protection device for a marine flexible pipe cable includes a bending reinforcement 2 provided on the pipe cable 1. When the pipe cable 1 has a small swing, the bending reinforcement 2 bends and deforms, thereby restricting the swing of the pipe cable 1 and playing a buffering role; a buffer member is provided at the right end of the bending reinforcement 2. When the pipe cable 1 is subjected to an uncontrollable impact load, through the deformation of the buffer member, the overall bending moment is restricted and absorbed into the buffer body and then slowly released, thereby protecting the safety of the connection of the pipe cable 1. The buffer member includes a buffer barrel body 3. A plurality of annular grooves 31 are longitudinally and equidistantly formed on the outer peripheral side of the buffer barrel body 3, so that the circumferential convex part of the buffer barrel body 3 forms an outer buffer ring 32, which can better play a buffering role.
[0030] The buffer barrel body 3 is integrally cast from a polyurethane elastomer and can achieve a buffering effect.
[0031] In an embodiment of the present utility model, a first channel 33 for the pipe cable 1 to pass through is provided in the middle of the buffer barrel body 3, which is convenient for installing the buffer barrel body 3 on the pipe cable 1.
[0032] In an embodiment of the present utility model, a plurality of inner buffer rings 34 are longitudinally provided in the middle of the buffer barrel body 3. The number of the inner buffer rings 34 is the same as that of the annular grooves 31, and the inner buffer rings 34 and the corresponding annular grooves 31 are located in the same transverse direction. Through the cooperation of the inner buffer rings 34 and the outer buffer rings 32, a better buffering effect can be achieved.
[0033] As Figures 5-6 shown, in an embodiment of the present utility model, the buffer barrel body 3 is connected to the bending strengthening member 2 through a connecting insert 4; the connecting insert 4 includes a cage-shaped sleeve 41 embedded in the right end of the bending strengthening member 2. A first disc 42 is fixed to the top of the cage-shaped sleeve 41. A column 43 is fixed to the top of the first disc 42. A second disc 44 is fixed to the top of the column 43. The top of the second disc 44 is fixedly connected to the buffer barrel body 3.
[0034] The cage-shaped sleeve 41 includes a plurality of U-shaped ribs 411 circumferentially fixed to the bottom of the first disc 42. The bottoms of the plurality of U-shaped ribs 411 are connected by a first annular rib 412. The outer ribs of the plurality of U-shaped ribs 411 are connected by a second annular rib 413. The inner ribs of the plurality of U-shaped ribs 411 are respectively connected by upper and lower third annular ribs 414, which can increase the contact area between the cage-shaped sleeve 41 and the inner wall of the bending strengthening member 2 and facilitate strengthening the connection effect.
[0035] In this embodiment, the connecting insert 4 and the bending strengthening member 2 are integrally formed by integral casting. During the casting process, the cage-shaped sleeve 41 can increase the contact area with the inner wall of the bending strengthening member 2, so that the connection effect between the connecting insert 4 and the bending strengthening member 2 can be strengthened.
[0036] In an embodiment of the present utility model, a plurality of screw rods 45 are circumferentially fixed to the top of the second disc 44. The upper ends of the screw rods 45 penetrate through the buffer barrel body 3. A pipe for the screw rods 45 to pass through is provided in the buffer barrel body 3. It is convenient to connect with the flange of the offshore platform through the screw rods 45. After the upper ends of the screw rods 45 pass through the flange holes of the flange, nuts are then screwed onto the screw rods 45 to complete the installation.
[0037] In an embodiment of the present utility model, a plurality of ear seats 46 are fixed to the outer peripheral side of the column 43. Workers can pull the ear seats 46 to facilitate driving the device to move on the pipe cable 1.
[0038] In an embodiment of the present utility model, second channels 47 for the pipe cable 1 to pass through are provided on the first disc 42, the column 43, and the second disc 44, which is convenient for installing the first disc 42, the column 43, and the second disc 44 on the pipe cable 1.
[0039] The above are only the preferred embodiments of the present utility model, and should not be construed as limitations to this application. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.
Claims
1. An anti-impact bending strengthening protection device for marine flexible pipe cables, including a bending strengthening member arranged on the pipe cable, characterized in that, A buffer is provided at the right end of the bending reinforcement member; the buffer includes a buffer barrel body, and a plurality of annular grooves are longitudinally and equidistantly formed on the outer peripheral side of the buffer barrel body, so that the circumferential convex part of the buffer barrel body forms an outer buffer ring.
2. The anti-impact bending strengthening protection device for marine flexible pipe cables according to claim 1, wherein, The buffer barrel body is integrally cast from a polyurethane elastomer.
3. The anti-impact bending strengthening protection device for marine flexible pipe cables according to claim 1 or 2, characterized in that, A first channel for the cable to pass through is provided in the middle of the buffer barrel body.
4. The anti-impact bending strengthening protection device for marine flexible pipe cables according to claim 1 or 2, characterized in that, A plurality of inner buffer rings are longitudinally provided in the middle of the buffer barrel body.
5. The anti-impact bending strengthening protection device for marine flexible pipe cables according to claim 4, characterized in that, The number of the inner buffer rings is the same as that of the annular grooves, and the inner buffer rings and the corresponding annular grooves are in the same horizontal direction.
6. The anti-impact bending strengthening protection device for marine flexible pipe cables according to claim 1 or 2, characterized in that, The buffer barrel body is connected to the bending reinforcement member through a connecting insert; the connecting insert includes a cage-shaped sleeve embedded in the right end of the bending reinforcement member, a first disc is fixed to the top of the cage-shaped sleeve, a column is fixed to the top of the first disc, a second disc is fixed to the top of the column, and the top of the second disc is fixedly connected to the buffer barrel body.
7. The anti-impact bending strengthening protection device for marine flexible pipe cables according to claim 6, characterized in that, The cage-shaped sleeve includes a plurality of U-shaped ribs circumferentially fixed to the bottom of the first disc, the bottoms of the plurality of U-shaped ribs are connected by a first annular rib, the outer ribs of the plurality of U-shaped ribs are connected by a second annular rib, and the inner ribs of the plurality of U-shaped ribs are respectively connected by upper and lower third annular ribs.
8. The anti-impact bending strengthening and protecting device for marine flexible pipe cables according to claim 6, characterized in that, A plurality of screw rods are circumferentially fixed to the top of the second disc, and the upper ends of the screw rods penetrate through the buffer barrel body.
9. The anti-impact bending strengthening protection device for marine flexible pipe cables according to claim 6, characterized in that, A plurality of ear seats are fixed to the outer peripheral side of the column.
10. The anti-impact and bending strengthening protection device for marine flexible pipe cables according to claim 6, characterized in that, Second channels for the cable to pass through are provided on the first disc, the column and the second disc.