CN113983041B - Vortex-induced vibration suppression device for marine riser - Google Patents
Vortex-induced vibration suppression device for marine riser Download PDFInfo
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- CN113983041B CN113983041B CN202111288056.8A CN202111288056A CN113983041B CN 113983041 B CN113983041 B CN 113983041B CN 202111288056 A CN202111288056 A CN 202111288056A CN 113983041 B CN113983041 B CN 113983041B
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- 230000001629 suppression Effects 0.000 title claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 56
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241001474374 Blennius Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The application discloses marine riser vortex-induced vibration suppression device, including marine riser body and mounting structure, mounting structure includes the installation body, the installation body sets up in the marine riser body outside, installation body side rigid coupling mounting panel, mounting panel department is provided with the installation bolt subassembly, the fixed crown block of installation body one side rigid coupling, fixed crown block one side sliding connection stopper, stopper one side rigid coupling protection body, protection body side sliding connection ball, the ball rotates to be connected in fixed crown block one side, protection body outside rigid coupling has two symmetrical distribution's rotation wings. The installation and the dismantlement of vortex-induced vibration suppression device can be convenient for to this application utilize mounting panel and mounting bolt subassembly, utilize the stopper can make the swivel vane around ocean riser body free rotation, can the change of self-adaptation incoming flow direction, can effectually restrain the vortex-induced vibration of ocean riser body.
Description
Technical Field
The application relates to the technical field of deepwater engineering, in particular to a vortex-induced vibration suppression device for a marine riser.
Background
Marine risers are an important component of deep-sea field development system structures, and are the core of deep-water engineering technology, compared with shallow oil and gas development, marine risers are the only key structures for connecting floating-in-water and underwater production systems, the application of the marine risers in deep water is more unique and challenging, and currently, deep-water risers are not uniformly classified, but can be roughly classified into top pretension risers, steel catenary risers, flexible risers, tower risers and drilling risers according to the structural form and the application of the marine risers. At present, the marine riser directly faces to a severe marine environment, under the action of a certain flow velocity, when vortex shedding frequency is equal to the natural frequency of the riser, vortex-induced vibration of the riser is induced, the vortex-induced vibration of the marine riser is a main cause for fatigue damage of the riser, the safe operation of the riser is influenced, the time and cost of offshore oil and gas exploitation are increased, the conventional marine riser vortex-induced vibration suppression device is inconvenient to install and detach, and the marine riser vortex-induced vibration suppression device is inconvenient to use. Therefore, a marine riser vortex-induced vibration suppression device is proposed to address the above-described problems.
Disclosure of Invention
The embodiment provides a marine riser vortex-induced vibration suppression device which is used for solving the problems that the conventional marine riser vortex-induced vibration suppression device in the prior art is inconvenient to install and detach and inconvenient to use.
According to an aspect of the application, there is provided a marine riser vortex-induced vibration suppression device, including marine riser body and mounting structure, mounting structure includes the installation body, the installation body sets up in the marine riser body outside, installation body side rigid coupling mounting panel, mounting panel department is provided with the installation bolt subassembly, the fixed crown plate of installation body one side rigid coupling, fixed crown plate one side sliding connection stopper, stopper one side rigid coupling protection body, protection body side sliding connection ball, the ball rotates to be connected in fixed crown plate one side, protection body outside rigid coupling has two symmetric distribution's revolving wing.
Further, including protective structure, protective structure includes supplementary crown block, supplementary crown block passes through fixing bolt to be installed in the installation body outside, fixing bolt and installation body threaded connection, supplementary crown block one side rigid coupling fixed screw thread post, fixed screw thread post one end rigid coupling limiting plate, fixed screw thread post surface threaded connection adjusting sleeve, adjusting sleeve one end rotates and connects first support crown block, first support crown block one side rigid coupling barrier post, the barrier post has Shan Gujie second support crown block.
Further, the protective tube comprises a supporting structure, the supporting structure comprises a supporting spring, an adjusting groove is formed in the inner side of the protective tube body, the supporting spring is fixedly connected with the inner wall of the adjusting groove, one end of the supporting spring is fixedly connected with a sliding plate, one side of the sliding plate is fixedly connected with a mounting column, and one end of the mounting column is rotationally connected with a supporting rolling ball.
Further, two symmetrically distributed mounting plates are fixedly connected to the outer side of the mounting pipe body, two symmetrically distributed mounting pipe bodies are arranged on the outer side of the marine riser body, and the cross sections of the two mounting pipe bodies are semicircular.
Further, the upper side and the lower side of the protection pipe body are respectively provided with an installation pipe body, the installation bolt assembly comprises a bolt and a nut, the bolt is in threaded connection with the nut, and the installation plate is provided with an installation hole.
Further, one side of the fixed ring plate far away from the installation pipe body is rotationally connected with a plurality of evenly distributed balls, sliding grooves are formed in the upper side and the lower side of the protection pipe body, and the balls are in sliding connection with the protection pipe body through the sliding grooves.
Further, the limit groove is formed in one side, far away from the installation pipe body, of the fixed ring plate, the section of the limit block is of a T-shaped structure, and the limit block is in sliding connection with the fixed ring plate through the limit groove.
Further, one side of the first support ring plate is fixedly connected with a plurality of uniformly distributed blocking columns, and two sides of the second support ring plate are fixedly connected with a plurality of uniformly distributed blocking columns.
Further, a plurality of evenly distributed adjusting grooves are formed in the inner side of the protective tube body, and a plurality of supporting springs which are evenly distributed are fixedly connected to the inner wall of the adjusting grooves.
Further, one side of the sliding plate far away from the supporting spring is fixedly connected with a plurality of mounting columns, and one end of the mounting columns far away from the sliding plate side is rotationally connected with a supporting rolling ball.
Through the above-mentioned embodiment of this application, the installation that has adopted installation body and construction such as installation bolt subassembly can be convenient for ocean riser vortex-induced vibration suppression device has solved current ocean riser vortex-induced vibration suppression device installation and has dismantled comparatively inconvenient, the use problem of the ocean riser vortex-induced vibration suppression device of being inconvenient for, makes installation and dismantlement of ocean riser vortex-induced vibration suppression device comparatively simple, convenient, the use of the ocean riser vortex-induced vibration suppression device of being convenient for reduces the influence of vortex-induced vibration to ocean riser, the use of the ocean riser of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic perspective view of an embodiment of the present application;
FIG. 2 is a schematic overall internal view of an embodiment of the present application;
FIG. 3 is a schematic illustration of the positional relationship between a mounting tube, mounting plate and mounting bolt assembly according to one embodiment of the present application;
FIG. 4 is a schematic view illustrating the positional relationship among a protective tube, a rotary wing and a support structure according to an embodiment of the present application;
fig. 5 is a partially enlarged schematic illustration of fig. 2 a in accordance with an embodiment of the present application.
In the figure: 1. a marine riser body; 2. installing a tube body; 3. a mounting plate; 4. installing a bolt assembly; 5. a fixed ring plate; 6. a limiting block; 7. a protective tube body; 8. a ball; 9. a rotary wing; 10. an auxiliary ring plate; 11. a fixing bolt; 12. fixing the threaded column; 13. a limiting plate; 14. an adjustment sleeve; 15. a first support ring plate; 16. a barrier column; 17. a second support ring plate; 18. a support spring; 19. a sliding plate; 20. a mounting column; 21. supporting the ball.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The vortex-induced vibration suppression device in the present embodiment may be applied to various marine risers, for example, a marine production riser is provided in the present embodiment, and the vortex-induced vibration suppression device in the present embodiment may be applied to a marine production riser.
The marine oil extraction riser comprises a riser, a central pipe, a flexible joint, a hydraulic connector, a riser fixing seat and a hose, wherein the central pipe is fixed in the riser, the flexible joint is connected to the bottom of the central pipe, the hose is connected to the upper portion of the central pipe, and the riser is connected with the riser fixing seat through a hydraulic connecting machine. The hydraulic connector comprises a base, a connector and a hydraulic cylinder, wherein a groove is formed in the base, a boss is arranged on the connector, the boss is connected with the hydraulic cylinder, and a hydraulic rod and a piston are arranged in the hydraulic cylinder. And a sealing ring is arranged between the hydraulic cylinder and the connector.
Of course, the embodiment can also be used for marine risers of other structures. The vortex-induced vibration suppression device according to the embodiments of the present application will be described below without further details.
Referring to fig. 1-5, a vortex-induced vibration suppression device for a marine riser comprises a marine riser body 1 and a mounting structure, wherein the mounting structure comprises a mounting pipe body 2, the mounting pipe body 2 is arranged on the outer side of the marine riser body 1, a mounting plate 3 is fixedly connected to the side surface of the mounting pipe body 2, a mounting bolt assembly 4 is arranged at the mounting plate 3, a fixed ring plate 5 is fixedly connected to one side of the mounting pipe body 2, a limiting block 6 is slidably connected to one side of the fixed ring plate 5, a protective pipe body 7 is fixedly connected to one side of the limiting block 6, balls 8 are slidably connected to the side surface of the protective pipe body 7, and two symmetrically distributed rotary wings 9 are fixedly connected to the outer side of the protective pipe body 7.
Utilize mounting panel 3 and mounting bolt subassembly 4 can be convenient for install structure such as mounting tube body 2 and protection body 7 on marine riser body 1 surface, the installation and the dismantlement of vortex-induced vibration suppression device of being convenient for utilize stopper 6 can make rotary wing 9 around marine riser body 1 free rotation, can the change of self-adaptation incoming flow direction, can effectually restrain the vortex-induced vibration of marine riser body 1, improve the security and the antifatigue ability of marine riser body 1 operation, the use of marine riser body 1 of being convenient for. The protection structure comprises an auxiliary ring plate 10, wherein the auxiliary ring plate 10 is arranged on the outer side of an installation pipe body 2 through a fixing bolt 11, the fixing bolt 11 is in threaded connection with the installation pipe body 2, one side of the auxiliary ring plate 10 is fixedly connected with a fixing threaded column 12, one end of the fixing threaded column 12 is fixedly connected with a limiting plate 13, the surface of the fixing threaded column 12 is in threaded connection with an adjusting sleeve 14, one end of the adjusting sleeve 14 is rotatably connected with a first supporting ring plate 15, one side of the first supporting ring plate 15 is fixedly connected with a blocking column 16, and the blocking column 16 is provided with a single fixedly connected second supporting ring plate 17; the protective tube comprises a support structure, wherein the support structure comprises a support spring 18, an adjusting groove is formed in the inner side of the protective tube body 7, the support spring 18 is fixedly connected with the inner wall of the adjusting groove, one end of the support spring 18 is fixedly connected with a sliding plate 19, one side of the sliding plate 19 is fixedly connected with a mounting column 20, and one end of the mounting column 20 is rotatably connected with a supporting rolling ball 21; two symmetrically-distributed mounting plates 3 are fixedly connected to the outer side of the mounting pipe body 2, two symmetrically-distributed mounting pipe bodies 2 are arranged on the outer side of the marine riser body 1, the cross sections of the two mounting pipe bodies 2 are semicircular, two symmetrically-distributed protection pipe bodies 7 are arranged on the outer surface of the marine riser body 1, and two symmetrically-distributed rotating wings 9 are fixedly connected to the outer side of one protection pipe body 7; the installation pipe body 2 is arranged on the upper side and the lower side of the protection pipe body 7, the installation bolt assembly 4 comprises a bolt and a nut, the bolt is in threaded connection with the nut, the installation plate 3 is provided with an installation hole, when in use, the bolt passes through the installation hole, and then the nut is installed at one end of the bolt, so that the installation plate 3 is installed, and the installation and the disassembly of the vortex-induced vibration suppression device are convenient; the fixed ring plate 5 is rotatably connected with a plurality of evenly distributed balls 8 on one side far away from the installation pipe body 2, sliding grooves are formed in the upper side and the lower side of the protection pipe body 7, the balls 8 are slidably connected with the protection pipe body 7 through the sliding grooves, and the balls 8 can support the protection pipe body 7, so that the rotation of the protection pipe body 7 is more stable; a limiting groove is formed in one side, far away from the mounting pipe body 2, of the fixed ring plate 5, the section of the limiting block 6 is of a T-shaped structure, the limiting block 6 is in sliding connection with the fixed ring plate 5 through the limiting groove, and the limiting block 6 can limit the rotating track of the protective pipe body 7; a plurality of uniformly distributed blocking columns 16 are fixedly connected to one side of the first supporting ring plate 15, a plurality of uniformly distributed blocking columns 16 are fixedly connected to two sides of the second supporting ring plate 17, the blocking columns 16 and the second supporting ring plate 17 can protect structures such as the rotating wings 9, and the phenomenon that substances such as large seaweed in the ocean are wound on the rotating wings 9 to influence use is avoided; a plurality of uniformly distributed adjusting grooves are formed in the inner side of the protective tube body 7, and a plurality of supporting springs 18 which are uniformly distributed are fixedly connected to the inner wall of the adjusting grooves; the side of the sliding plate 19 far away from the supporting spring 18 is fixedly connected with a plurality of mounting columns 20, one end of the mounting columns 20 far away from the side of the sliding plate 19 is rotatably connected with a supporting rolling ball 21, and the supporting spring 18 can enable the supporting rolling ball 21 to be clung to the surface of the marine riser body 1.
When the marine riser pipe is used, firstly, the mounting pipe bodies 2 on two sides are respectively arranged on the surface of the marine riser pipe body 1, then the mounting plate 3 on two sides is connected by the mounting bolt assemblies 4, so that the structures such as the mounting pipe body 2 and the protection pipe body 7 are mounted on the surface of the marine riser pipe body 1, then the auxiliary ring plate 10 is mounted on the surface of the mounting pipe body 2 by the fixing bolts 11, then the adjusting sleeve 14 is rotated, at the moment, under the action of the fixing threaded column 12, the adjusting sleeve 14 can move along the fixing threaded column 12, thereby driving the first supporting ring plate 15 to move in the same direction, driving the structures such as the blocking column 16 and the second supporting ring plate 17 to move in opposite directions, protecting the structures such as the rotating wings 9 by the blocking column 16 and the second supporting ring plate 17, avoiding the influence on the rotation of the rotating wings 9 caused by the winding of substances such as large seaweeds in the sea on the rotating wings 9, the vortex-induced vibration suppression device is prevented from being influenced, then vortex-induced vibration of the marine riser body 1 is suppressed through the rotating wings 9, the rotating wings 9 can freely rotate under the action of the structures such as the fixed ring plate 5 and the limiting block 6, change of the incoming flow direction can be self-adapted, the operation safety and fatigue resistance of the marine riser body 1 are improved conveniently, the protective tube body 7 can rotate when the rotating wings 9 rotate, the limiting block 6 is driven to rotate in the fixed ring plate 5, at the moment, the rotation of the protective tube body 7 can be supported through the balls 8, so that the rotation of the protective tube body 7 is more stable, meanwhile, the protective tube body 7 rotates to drive the sliding plate 19 to rotate, thereby driving the mounting post 20 and the supporting rolling ball 21 to rotate, at the moment, the supporting rolling ball 21 can be tightly attached to the marine riser body 1 through the supporting spring 18, the supporting rolling ball 21 can roll on the marine riser body 1, the rotation of the protective pipe body 7 is more stable, so that the vortex-induced vibration of the marine riser body 1 is conveniently restrained, and the vortex-induced vibration restraining device is convenient to use.
The beneficial point of the application lies in:
1. the marine riser body structure is convenient to operate, the mounting plate and the mounting bolt assembly are utilized to conveniently mount structures such as the mounting pipe body and the protection pipe body on the surface of the marine riser body, the vortex-induced vibration suppression device is convenient to mount and dismount, the rotating wings can freely rotate around the marine riser body by utilizing the limiting blocks, the change of the incoming flow direction can be self-adaptively realized, the vortex-induced vibration of the marine riser body can be effectively suppressed, the operation safety and the fatigue resistance of the marine riser body are improved, and the use of the marine riser body is convenient;
2. the structure is reasonable, the positions of the blocking columns and the second supporting ring plates can be conveniently adjusted by utilizing the structures such as the fixed threaded columns and the limiting plates, the structures such as the rotary wings and the like can be protected by utilizing the blocking columns and the second supporting ring plates, the phenomenon that substances such as large seaweed and the like in the ocean are wound on the rotary wings to influence the use is avoided, and the vortex-induced vibration suppression device is convenient to use;
3. the marine riser body surface can be hugged closely to this application simple structure, utilizes structures such as supporting spring to make the support spin, utilizes the support spin can be convenient for protect the rotation of structures such as body and rotor, is convenient for restrain the vortex-induced vibration of marine riser body.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (9)
1. A marine riser vortex-induced vibration suppression device is characterized in that: the marine riser installation structure comprises a marine riser body (1) and an installation structure, wherein the installation structure comprises an installation pipe body (2), the installation pipe body (2) is arranged on the outer side of the marine riser body (1), an installation plate (3) is fixedly connected to the side face of the installation pipe body (2), an installation bolt assembly (4) is arranged at the installation plate (3), a fixed annular plate (5) is fixedly connected to one side of the installation pipe body (2), a limiting block (6) is slidably connected to one side of the fixed annular plate (5), a protection pipe body (7) is fixedly connected to one side of the limiting block (6), balls (8) are slidably connected to one side of the protection pipe body (7), and two symmetrically distributed rotary wings (9) are fixedly connected to the outer side of the protection pipe body (7). Still include protective structure, protective structure includes supplementary crown block (10), supplementary crown block (10) are installed in the installation body (2) outside through fixing bolt (11), fixing bolt (11) and installation body (2) threaded connection, supplementary crown block (10) one side rigid coupling fixed screw thread post (12), fixed screw thread post (12) one end rigid coupling limiting plate (13), fixed screw thread post (12) surface threaded connection adjusts sleeve (14), adjust sleeve (14) one end rotation and connect first support crown block (15), first support crown block (15) one side rigid coupling barrier post (16), barrier post (16) have single rigid coupling second support crown block (17).
2. The marine riser vortex-induced vibration suppression device of claim 1, wherein: including bearing structure, bearing structure includes supporting spring (18), the adjustment tank has been seted up to protection body (7) inboard, adjustment tank inner wall rigid coupling supporting spring (18), supporting spring (18) one end rigid coupling sliding plate (19), sliding plate (19) one side rigid coupling erection column (20), erection column (20) one end rotates and connects support spin (21).
3. The marine riser vortex-induced vibration suppression device of claim 1, wherein: the marine riser installation structure is characterized in that two symmetrically distributed installation plates (3) are fixedly connected to the outer side of the installation pipe body (2), two symmetrically distributed installation pipe bodies (2) are arranged on the outer side of the marine riser body (1), and the sections of the two installation pipe bodies (2) are semicircular.
4. The marine riser vortex-induced vibration suppression device of claim 1, wherein: the protection pipe body (7) upper and lower both sides all are provided with installation pipe body (2), installation bolt subassembly (4) are including bolt and nut, just bolt and nut threaded connection, the mounting hole has been seted up to mounting panel (3).
5. The marine riser vortex-induced vibration suppression device of claim 1, wherein: one side of the fixed ring plate (5) far away from the installation pipe body (2) is rotationally connected with a plurality of evenly distributed balls (8), sliding grooves are formed in the upper side and the lower side of the protection pipe body (7), and the balls (8) are in sliding connection with the protection pipe body (7) through the sliding grooves.
6. The marine riser vortex-induced vibration suppression device of claim 1, wherein: the limiting groove is formed in one side, far away from the installation pipe body (2), of the fixed ring plate (5), the section of the limiting block (6) is of a T-shaped structure, and the limiting block (6) is in sliding connection with the fixed ring plate (5) through the limiting groove.
7. A marine riser vortex induced vibration suppression device as recited in claim 2 wherein: one side of the first support ring plate (15) is fixedly connected with a plurality of uniformly distributed blocking columns (16), and two sides of the second support ring plate (17) are fixedly connected with a plurality of uniformly distributed blocking columns (16).
8. A marine riser vortex induced vibration suppression device according to claim 3, wherein: a plurality of evenly distributed adjusting grooves are formed in the inner side of the protective pipe body (7), and a plurality of supporting springs (18) which are evenly distributed are fixedly connected to the inner wall of the adjusting grooves.
9. A marine riser vortex induced vibration suppression device according to claim 3, wherein: one side of the sliding plate (19) far away from the supporting spring (18) is fixedly connected with a plurality of mounting columns (20), and one end of the mounting columns (20) far away from the sliding plate (19) side is rotatably connected with a supporting rolling ball (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288056.8A CN113983041B (en) | 2021-11-02 | 2021-11-02 | Vortex-induced vibration suppression device for marine riser |
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| CN202111288056.8A CN113983041B (en) | 2021-11-02 | 2021-11-02 | Vortex-induced vibration suppression device for marine riser |
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| CN113983041A CN113983041A (en) | 2022-01-28 |
| CN113983041B true CN113983041B (en) | 2024-01-12 |
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