CN113983041A - Marine riser vortex-induced vibration suppression device - Google Patents
Marine riser vortex-induced vibration suppression device Download PDFInfo
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- CN113983041A CN113983041A CN202111288056.8A CN202111288056A CN113983041A CN 113983041 A CN113983041 A CN 113983041A CN 202111288056 A CN202111288056 A CN 202111288056A CN 113983041 A CN113983041 A CN 113983041A
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- 230000001629 suppression Effects 0.000 title claims abstract description 38
- 238000009434 installation Methods 0.000 claims abstract description 56
- 230000008878 coupling Effects 0.000 claims abstract description 24
- 238000010168 coupling process Methods 0.000 claims abstract description 24
- 238000005859 coupling reaction Methods 0.000 claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000009826 distribution Methods 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 22
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims 2
- 230000008859 change Effects 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 241001474374 Blennius Species 0.000 description 2
- 230000002929 anti-fatigue Effects 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
- 241000195493 Cryptophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 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
- 238000007667 floating 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
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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 is including 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 construction bolt subassembly, installation body one side rigid coupling fixed ring board, fixed ring board 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 ring board one side, protection body outside rigid coupling has two symmetric distribution's rotor. This application utilizes mounting panel and construction bolt subassembly can be convenient for vortex induced vibration suppression device's installation and dismantlement, utilizes the stopper can make the rotary wing around ocean riser body free rotation, can the change of self-adaptation incoming flow direction, can effectual suppression ocean riser body's vortex induced vibration.
Description
Technical Field
The application relates to the technical field of deepwater engineering, in particular to a marine riser vortex-induced vibration suppression device.
Background
The marine riser is an important component of a deep-sea oil and gas field development system structure and is the core of a deep-water engineering technology, compared with shallow-water oil and gas development, the marine riser is used as a unique key structure for connecting an above-water floating and underwater production system, the application of the marine riser in deep water is more unique and challenging, the deep-water risers are not uniformly classified at present, but the marine riser can be mainly classified into a top pretension riser, a steel catenary riser, a flexible riser, a tower riser and a drilling riser according to the structural form and the application of the marine riser. At present, the marine riser directly faces to a severe marine environment, vortex-induced vibration of the riser can be induced when vortex shedding frequency is equal to natural frequency of the riser under the action of a certain flow rate, the vortex-induced vibration of the marine riser is a main reason for fatigue damage of the riser, safety operation of the riser is affected, time and cost of offshore oil and gas exploitation are increased, and the conventional marine riser vortex-induced vibration suppression device is inconvenient to install and disassemble and is inconvenient to use. Therefore, a marine riser vortex induced vibration suppression device is proposed to address the above problems.
Disclosure of Invention
The marine riser vortex-induced vibration suppression device is used for solving the problems that the existing marine riser vortex-induced vibration suppression device in the prior art is inconvenient to install and disassemble and the marine riser vortex-induced vibration suppression device is inconvenient to use.
According to an aspect of the application, a marine riser vortex-induced vibration suppression device is provided, including marine riser body and mounting structure, mounting structure is including 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 construction bolt subassembly, installation body one side rigid coupling retaining ring board, retaining ring board 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 retaining ring board one side, protection body outside rigid coupling has two symmetric distribution's rotor.
Further, including protective structure, protective structure includes supplementary crown plate, supplementary crown plate passes through fixing bolt and installs in the installation body outside, fixing bolt and installation body threaded connection, supplementary crown plate one side rigid coupling fixed thread post, fixed thread post one end rigid coupling limiting plate, fixed thread post surface threaded connection adjusting sleeve, adjusting sleeve one end is rotated and is connected first supporting ring board, first supporting ring board one side rigid coupling barrier column, barrier column has single rigid coupling second supporting ring board.
Further, the device comprises a supporting structure, wherein the supporting structure comprises a supporting spring, an adjusting groove is formed in the inner side of the protective pipe body, the inner wall of the adjusting groove is fixedly connected with the supporting spring, one end of the supporting spring is fixedly connected with a sliding plate, one side of the sliding plate is fixedly connected with an installation column, and one end of the installation column is rotatably connected with a supporting rolling ball.
Further, the mounting tube body outside rigid coupling has the mounting panel of two symmetric distributions, the marine riser body outside is provided with the mounting tube body of two symmetric distributions, and two the cross-section of mounting tube body all is semicircular.
Further, both sides all are provided with the installation body about the protection body, the construction bolt subassembly includes bolt and nut, just bolt and nut threaded connection, the mounting hole has been seted up to the mounting panel.
Further, one side of the fixed ring plate, which is far away from the installation pipe body, is rotatably connected with a plurality of balls which are uniformly distributed, sliding grooves are formed in the upper side and the lower side of the protection pipe body, and the balls are connected with the protection pipe body in a sliding mode through the sliding grooves.
Furthermore, a limiting groove is formed in one side, away from the installation pipe body, of the fixed ring plate, the cross section of the limiting block is of a T-shaped structure, and the limiting block is connected with the fixed ring plate in a sliding mode through the limiting groove.
Furthermore, a plurality of evenly distributed barrier columns are fixedly connected to one side of the first supporting ring plate, and a plurality of evenly distributed barrier columns are fixedly connected to the two sides of the second supporting ring plate.
Furthermore, a plurality of uniformly distributed adjusting grooves are formed in the inner side of the protective pipe body, and a plurality of supporting springs are fixedly connected to the inner wall of each adjusting groove and distributed on the inner wall of each adjusting groove.
Furthermore, one side of the sliding plate, which is far away from the supporting spring, is fixedly connected with a plurality of mounting columns, and one end of each mounting column, which is far away from the side of the sliding plate, is rotatably connected with a supporting rolling ball.
Through the above-mentioned embodiment of this application, the installation of installation body and installation bolt subassembly isotructure can be convenient for marine riser vortex induced vibration suppression device has been adopted, it is comparatively inconvenient to have solved current marine riser vortex induced vibration suppression device installation and dismantlement, the marine riser vortex induced vibration suppression device's of being not convenient for use problem, it is comparatively simple with the dismantlement to make marine riser vortex induced vibration suppression device's installation, convenient, the marine riser vortex induced vibration suppression device's of being convenient for use, reduce the vortex induced vibration to marine riser's influence, the marine riser's of being convenient for use.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is an overall perspective view of one embodiment of the present application;
FIG. 2 is an overall internal schematic view of an embodiment of the present application;
FIG. 3 is a schematic view of the positioning of the mounting tube, mounting plate and mounting bolt assembly according to one embodiment of the present application;
FIG. 4 is a schematic view of the protective tube, the rotary wing and the support structure according to an embodiment of the present disclosure;
fig. 5 is an enlarged view of a portion a in fig. 2 according to an embodiment of the present disclosure.
In the figure: 1. a marine riser body; 2. installing a pipe body; 3. mounting a plate; 4. installing a bolt assembly; 5. a stationary ring plate; 6. a limiting block; 7. a protective tube body; 8. a ball bearing; 9. a rotary wing; 10. an auxiliary ring plate; 11. fixing the 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. mounting a column; 21. supporting the ball.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. 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 this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship 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," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can 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 above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The vortex-induced vibration suppression device in the present embodiment may be applied to various marine risers, for example, the following marine production risers are provided in the present embodiment, and the vortex-induced vibration suppression device in the present embodiment may be used for the following marine production risers.
The marine oil production 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 inside 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 the hydraulic connector. The hydraulic connector comprises a base and a connector, wherein the base is provided with a groove, the connector is provided with a boss, the boss is connected with a 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 be used for marine risers of other structures. Here, description is not repeated, and the vortex-induced vibration suppression device according to the embodiment of the present application is described below.
Please refer to fig. 1-5, a marine riser vortex-induced vibration suppression device, comprising a marine riser body 1 and an installation structure, wherein the installation structure comprises an installation tube body 2, the installation tube body 2 is arranged outside the marine riser body 1, the side surface of the installation tube body 2 is fixedly connected with an installation plate 3, the installation plate 3 is provided with an installation bolt assembly 4, one side of the installation tube body 2 is fixedly connected with a fixed ring plate 5, one side of the fixed ring plate 5 is slidably connected with a limit block 6, one side of the limit block 6 is fixedly connected with a protection tube body 7, the side surface of the protection tube body 7 is slidably connected with a ball 8, the ball 8 is rotatably connected to one side of the fixed ring plate 5, and two symmetrically distributed rotary wings 9 are fixedly connected to the outside of the protection tube body 7.
Utilize mounting panel 3 and mounting bolt subassembly 4 can be convenient for install body 2 and protection body 7 isotructures in marine riser body 1 surface, the vortex induced vibration suppression device's of being convenient for installation and dismantlement, utilize stopper 6 can make the rotor 9 around marine riser body 1 free rotation, change that can the self-adaptation incoming flow direction, can effectual suppression marine riser body 1 vortex induced vibration, improve the security and the antifatigue ability of marine riser body 1 operation, the marine riser body 1's of being convenient for use. The protective structure comprises an auxiliary ring plate 10, wherein the auxiliary ring plate 10 is installed 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 fixed threaded column 12, one end of the fixed threaded column 12 is fixedly connected with a limiting plate 13, the surface of the fixed 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 supporting structure, wherein the supporting structure comprises a supporting spring 18, an adjusting groove is formed in the inner side of the protective tube body 7, the inner wall of the adjusting groove is fixedly connected with the supporting spring 18, one end of the supporting spring 18 is fixedly connected with a sliding plate 19, one side of the sliding plate 19 is fixedly connected with an installation column 20, and one end of the installation 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 tube body 2, two symmetrically distributed mounting tube bodies 2 are arranged on the outer side of the marine riser body 1, the cross sections of the two mounting tube bodies 2 are semicircular, two symmetrically distributed protection tube 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 tube body 7; the upper side and the lower side of the protective pipe body 7 are respectively provided with the mounting pipe body 2, the mounting bolt assembly 4 comprises a bolt and a nut, the bolt and the nut are in threaded connection, the mounting plate 3 is provided with a mounting hole, the bolt penetrates through the mounting hole when in use, and then the nut is mounted at one end of the bolt, so that the mounting plate 3 is mounted, and the vortex-induced vibration suppression device is convenient to mount and dismount; one side, far away from the installation pipe body 2, of the fixed ring plate 5 is rotatably connected with a plurality of uniformly distributed balls 8, 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 protection pipe body 7 can rotate more stably; a limiting groove is formed in one side, 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, the limiting block 6 is connected with the fixed ring plate 5 in a sliding mode through the limiting groove, and the limiting block 6 can limit the rotating track of the protection pipe body 7; a plurality of uniformly distributed barrier columns 16 are fixedly connected to one side of the first support ring plate 15, a plurality of uniformly distributed barrier columns 16 are fixedly connected to two sides of the second support ring plate 17, the barrier columns 16 and the second support ring plate 17 can protect structures such as the rotary wing 9, and the use of the rotary wing 9 is prevented from being affected by the winding of large marine matters such as seaweed on the rotary wing 9; a plurality of uniformly distributed adjusting grooves are formed in the inner side of the protective pipe body 7, and a plurality of uniformly distributed supporting springs 18 are fixedly connected to the inner wall of each adjusting groove; a plurality of mounting posts 20 are fixedly connected to one side of the sliding plate 19, which is far away from the supporting spring 18, one end of the mounting post 20, which is far away from 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 tightly attached to the surface of the marine riser body 1.
When the marine riser pipe is used, firstly, the installation pipe bodies 2 on two sides are respectively placed on the surface of the marine riser pipe body 1, then the installation plates 3 on two sides are connected by the installation bolt assemblies 4, so that the structures of the installation pipe bodies 2, the protection pipe bodies 7 and the like are installed on the surface of the marine riser pipe body 1, then the auxiliary ring plates 10 are installed on the surface of the installation pipe bodies 2 by the fixing bolts 11, then the adjusting sleeves 14 are rotated, at the moment, under the action of the fixing threaded columns 12, the adjusting sleeves 14 can move along the fixing threaded columns 12, so that the first support ring plates 15 are driven to move in the same direction, so that the structures of the blocking columns 16, the second support ring plates 17 and the like are driven to move in opposite directions, the structures of the rotary wings 9 and the like can be protected by the blocking columns 16 and the second support ring plates 17, and the phenomenon that larger marine algae and the like are wound on the rotary wings 9 to influence the rotation of the rotary wings 9 is avoided, the vortex-induced vibration suppression device is prevented from being influenced, then the vortex-induced vibration of the marine riser body 1 is suppressed through the rotary wings 9, under the action of the structures such as the fixed ring plate 5 and the limiting blocks 6, the rotary wings 9 can rotate freely and can adapt to the change of the incoming flow direction, the operation safety and the anti-fatigue capability of the marine riser body 1 are convenient to improve, in addition, the protective tube body 7 can rotate when the rotary wings 9 rotate, so that the limiting blocks 6 are 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, the rotation of the protective tube body 7 is more stable, meanwhile, the protective tube body 7 can rotate to drive the sliding plate 19 to rotate, so that the mounting columns 20 and the rolling balls 21 are driven to rotate, at the moment, the supporting rolling balls 21 can be tightly attached to the marine riser body 1 through the supporting springs 18, and the supporting rolling balls 21 are utilized to roll on the marine riser body 1, the rotation of the protective pipe body 7 is more stable, the vortex-induced vibration of the marine riser body 1 is restrained conveniently, and the vortex-induced vibration restraining device is convenient to use.
The application has the advantages that:
1. the marine riser body structure is convenient to operate, the mounting plate and the mounting bolt assembly can be used for conveniently mounting structures such as the mounting pipe body and the protective pipe body on the surface of the marine riser body, the vortex-induced vibration suppression device can be mounted and dismounted conveniently, the rotating wings can freely rotate around the marine riser body by using the limiting blocks, the change of the incoming flow direction can be adapted, the vortex-induced vibration of the marine riser body can be effectively suppressed, the safety and the fatigue resistance of the operation of the marine riser body are improved, and the marine riser body is convenient to use;
2. the vortex-induced vibration suppression device is reasonable in structure, the positions of the barrier column and the second support ring plate can be conveniently adjusted by utilizing the fixed threaded column, the limiting plate and other structures, the structures of the rotating wings and other structures can be protected by utilizing the barrier column and the second support ring plate, the situation that larger marine matters such as seaweed are wound on the rotating wings to affect use is avoided, and the vortex-induced vibration suppression device is convenient to use;
3. this application simple structure utilizes supporting spring isotructure can make the support spin hug closely ocean riser body surface, utilizes the rotation that the spin can be convenient for protect body and swivel wing isotructure of supporting, is convenient for restrain the vortex-induced vibration of ocean riser body.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A marine riser vortex-induced vibration suppression device, its characterized in that: including marine riser body (1) and mounting structure, mounting structure is including installation body (2), installation body (2) set up in marine riser body (1) outside, installation body (2) side rigid coupling mounting panel (3), mounting panel (3) department is provided with construction bolt subassembly (4), installation body (2) one side rigid coupling retaining ring board (5), retaining ring board (5) one side sliding connection stopper (6), stopper (6) one side rigid coupling protection body (7), protection body (7) side sliding connection ball (8), ball (8) rotate to be connected in retaining ring board (5) one side, protection body (7) outside rigid coupling has two symmetric distribution's rotor (9).
2. A marine riser vortex induced vibration suppression apparatus as claimed in claim 1, wherein: including protective structure, protective structure includes supplementary crown plate (10), supplementary crown plate (10) are installed in installation body (2) outside through fixing bolt (11), fixing bolt (11) and installation body (2) threaded connection, supplementary crown plate (10) one side rigid coupling fixed thread post (12), fixed thread post (12) one end rigid coupling limiting plate (13), fixed thread post (12) surface threaded connection adjusting sleeve (14), adjusting sleeve (14) one end is rotated and is connected first supporting ring board (15), first supporting ring board (15) one side rigid coupling blocks post (16), it has single rigid coupling second supporting ring board (17) to block post (16).
3. A marine riser vortex induced vibration suppression apparatus as claimed in claim 1, wherein: the novel protective pipe is characterized by comprising a supporting structure, wherein the supporting structure comprises a supporting spring (18), an adjusting groove is formed in the inner side of the protective pipe body (7), the inner wall of the adjusting groove is fixedly connected with the supporting spring (18), one end of the supporting spring (18) is fixedly connected with a sliding plate (19), one side of the sliding plate (19) is fixedly connected with an installation column (20), and one end of the installation column (20) is rotatably connected with a supporting rolling ball (21).
4. A marine riser vortex induced vibration suppression apparatus as claimed in claim 1, wherein: the installation pipe body (2) outside rigid coupling has mounting panel (3) of two symmetric distributions, marine riser body (1) outside is provided with the installation pipe body (2) of two symmetric distributions, and two the cross-section of installation pipe body (2) all is semi-circular.
5. A marine riser vortex induced vibration suppression apparatus as claimed in claim 1, wherein: both sides all are provided with installation body (2) about protection body (7), construction bolt subassembly (4) include bolt and nut, just bolt and nut threaded connection, the mounting hole has been seted up in mounting panel (3).
6. A marine riser vortex induced vibration suppression apparatus as claimed in claim 1, wherein: one side of the fixing ring plate (5) far away from the installation pipe body (2) is rotatably connected with a plurality of balls (8) which are uniformly distributed, sliding grooves are formed in the upper side and the lower side of the protection pipe body (7), and the balls (8) are connected with the protection pipe body (7) in a sliding mode through the sliding grooves.
7. A marine riser vortex induced vibration suppression apparatus as claimed in claim 1, wherein: the limiting groove is formed in one side, away from the installation pipe body (2), of the fixing ring plate (5), the cross section of the limiting block (6) is of a T-shaped structure, and the limiting block (6) is connected with the fixing ring plate (5) in a sliding mode through the limiting groove.
8. A marine riser vortex induced vibration suppression apparatus as claimed in claim 2, wherein: first supporting ring board (15) one side rigid coupling has a plurality of evenly distributed's separation post (16), the equal rigid coupling in second supporting ring board (17) both sides has a plurality of evenly distributed's separation post (16).
9. A marine riser vortex induced vibration suppression apparatus as claimed in 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 distributed are fixedly connected to the inner wall of each adjusting groove.
10. A marine riser vortex induced vibration suppression apparatus as claimed in 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 each mounting column (20) far away from the sliding plate (19) 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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| 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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| CN113983041A true CN113983041A (en) | 2022-01-28 |
| CN113983041B CN113983041B (en) | 2024-01-12 |
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