Pipeline vortex-induced vibration rectifying device

Abstract

The utility model discloses a pipeline vortex-induced vibration rectifying device, which relates to the technical field of vortex-induced vibration suppression devices and comprises a pipeline body, a first fixing block and a second fixing block. U-shaped blocks are fixedly arranged on the back-to-back sides of the first fixing block and the second fixing block, a rectifying assembly is rotationally arranged in each U-shaped block, two elastic telescopic rods are symmetrically and fixedly arranged on the back-to-back sides of the first fixing block and the second fixing block, and the free end of each elastic telescopic rod is connected with a U-shaped plate. And a rotating rod is rotationally arranged in each U-shaped plate in a sleeving manner. By means of the connecting mechanism, the first fixing block and the second fixing block can be connected and fixed, on the basis that clamping of the pipeline body is guaranteed, the effect that the pipeline body is convenient to disassemble is achieved, and disassembly, replacement or maintenance are convenient when the pipeline body breaks down.

Description

Technical Field

[0001] The utility model relates to the technical field of vortex-induced vibration suppression devices, in particular to a pipeline vortex-induced vibration rectification device. Background Art

[0002] There are a large number of oil reserves at the bottom of the ocean. Pipelines are widely used in the development and application of offshore oil and natural gas. Pipelines include transverse pipes and risers. The transverse pipes are responsible for horizontal transportation of oil, while the risers are responsible for vertical transportation of oil. The transverse pipes are in a complex and changeable ocean current environment for a long time. When the ocean current passes through the transverse pipes, vortices with periodic alternating discharges will be generated, causing the transverse pipes to vibrate. When the vibration frequency of the transverse pipes is close to the vortex discharge frequency, resonance will be induced, thereby accelerating fatigue damage of the transverse pipes. Due to the changeable ocean current environment, the vortex-induced vibration suppression devices currently used are difficult to adjust their direction according to the ocean current environment, and the effect of suppressing vortex-induced vibration is not ideal.

[0003] After searching, a vortex-induced vibration suppression device for a submarine pipeline with a publication number of CN207111597U is disclosed, comprising a pipeline body, a first fixed block fixedly connected to the surface of the pipeline body, a second fixed block fixedly connected to a side surface of the first fixed block, a round rod fixedly connected to the front surface of the second fixed block, the round rod movably connected to a round hole opened on the front surface of a rectifier plate, a blind hole opened on one side surface of the first fixed block, a cylinder fixedly connected to the inside of the blind hole, a movable rod movably connected to the inside of the cylinder, one end of the movable rod fixedly connected to a spring, the other end of the spring fixedly connected to the inner wall of the cylinder, and a semicircular block fixedly connected to the end of the movable rod away from the cylinder.

[0004] The above technical solution has the following shortcomings:

[0005] The first fixing block in the above technical solution is fixedly sleeved on the surface of the pipe body, which causes a problem that the first fixing block cannot be disassembled when the pipe body fails, thereby affecting the disassembly and replacement of the pipe body. Utility Model Content

[0006] In view of the problems existing in the above-mentioned existing devices, the present utility model is proposed.

[0007] Therefore, the utility model aims to provide a pipeline vortex-induced vibration rectification device, which solves the problem that the pipeline body is inconvenient to replace when a failure occurs.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A pipeline vortex-induced vibration rectifying device comprises a pipeline body, a first fixed block and a second fixed block, wherein the first fixed block and the second fixed block are clamped and arranged on the outside of the pipeline body, a U-shaped block is fixedly arranged on the opposite side of the first fixed block and the second fixed block, a rectifying assembly is rotatably arranged inside each of the U-shaped blocks, two elastic telescopic rods are symmetrically fixedly arranged on the opposite side of the first fixed block and the second fixed block, a free end of each of the elastic telescopic rods is connected to a U-shaped plate, a rotating rod is rotatably sleeved inside each of the U-shaped plates, and a roller matching the corresponding rectifying assembly is fixedly sleeved on the rod wall of each rotating rod;

[0010] Two L-shaped plates and two fixed plates are symmetrically fixed on the side wall of the first fixed block, a bidirectional screw is rotatably arranged between each of the L-shaped plates and the corresponding fixed plate, and a first bevel gear is fixedly sleeved on both ends of each of the bidirectional screws, a connecting mechanism is arranged on the front and rear side walls of the first fixed block, and two mounting plates are symmetrically fixed on the front and rear side walls of the second fixed block, an internal threaded tube is fixedly arranged on the side wall of each mounting plate, and each of the internal threaded tubes matches the corresponding connecting mechanism.

[0011] Preferably, the connecting mechanism includes two mounting blocks and two screws, the two mounting blocks are symmetrically fixed on the side wall of the first fixed block, the two screws are respectively rotatably passed through the interior of the corresponding mounting blocks, the two screws are respectively threadedly passed through the interior of the corresponding internal threaded tubes, and one end of each screw away from the corresponding internal threaded tube is fixedly connected to a second bevel gear, and each of the first bevel gears is meshingly connected to the corresponding second bevel gear.

[0012] Preferably, the rod wall of the bidirectional screw rod is symmetrically threaded with two sliders, the side wall of each slider is fixedly connected with an L-shaped rod, the side wall of the internal threaded tube is fixedly provided with a triangular block, and the end of the L-shaped rod away from the slider is in contact with the inclined surface of the triangular block.

[0013] Preferably, a worm is rotatably arranged between the two L-shaped plates, the two bidirectional screws both penetrate the corresponding L-shaped plates and are respectively fixedly sleeved with worm wheels, and the two worm wheels are meshingly connected to the worm.

[0014] Preferably, a bellows is fixedly connected between the first fixing block and the second fixing block and the corresponding U-shaped plate, and each of the bellows is movably sleeved with the corresponding elastic telescopic rod.

[0015] Preferably, a limit rod is fixedly arranged between the two mounting blocks, and the limit rod is movably arranged inside the two L-shaped rods.

[0016] Preferably, one end of the L-shaped rod that contacts the inclined surface of the corresponding triangular block is configured as an arc-shaped end surface.

[0017] Preferably, one end of the worm screw passes through the corresponding L-shaped plate and is fixedly connected to a crank.

[0018] Preferably, the middle rod wall of each bidirectional screw rod is rotatably sleeved with a support plate fixedly connected to the side wall of the first fixed block, and each support plate is fixedly sleeved with the rod wall of the corresponding limiting rod.

[0019] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0020] The utility model can realize the connection and fixation of the first fixing block and the second fixing block through the connection mechanism, and achieves the effect of facilitating the disassembly of the pipeline body on the basis of ensuring the clamping of the pipeline body, so as to facilitate the disassembly, replacement or maintenance of the pipeline body when a fault occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the connection structure of the elastic telescopic rod and the U-shaped plate of the utility model;

[0024] Figure 3 It is a schematic diagram of the top view structure of two L-shaped plates of the utility model;

[0025] Figure 4 For the utility model Figure 1 A magnified schematic diagram of part A.

[0026] Description of reference numerals:

[0027] 1. Pipe body; 2. First fixed block; 3. Second fixed block; 4. U-shaped block; 5. Support plate; 6. Rectification assembly; 7. Elastic telescopic rod; 8. U-shaped plate; 9. Rotating rod; 10. Roller; 11. L-shaped plate; 12. Fixed plate; 13. Bidirectional screw; 14. First bevel gear; 15. Mounting plate; 16. Internally threaded pipe; 17. Mounting block; 18. Screw; 19. Second bevel gear; 20. Slider; 21. L-shaped rod; 22. Triangular block; 23. Worm; 24. Worm wheel; 25. Bellows; 26. Limit rod; 27. Crank handle. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] The utility model embodiment discloses a pipeline vortex-induced vibration rectification device.

[0030] Embodiment 1

[0031] The utility model provides Figure 1-4 A pipeline vortex-induced vibration rectifying device shown in the figure comprises a pipeline body 1, a first fixed block 2 and a second fixed block 3, the first fixed block 2 and the second fixed block 3 are clamped and arranged on the outside of the pipeline body 1, a U-shaped block 4 is fixedly arranged on the opposite side of the first fixed block 2 and the second fixed block 3, a rectifying assembly 6 is rotatably arranged inside each U-shaped block 4, two elastic telescopic rods 7 are symmetrically fixedly arranged on the opposite side of the first fixed block 2 and the second fixed block 3, the free end of each elastic telescopic rod 7 is connected to a U-shaped plate 8, a rotating rod 9 is rotatably sleeved inside each U-shaped plate 8, and a roller 10 matching the corresponding rectifying assembly 6 is fixedly sleeved on the rod wall of each rotating rod 9;

[0032] Two L-shaped plates 11 and two fixing plates 12 are symmetrically fixed on the side wall of the first fixing block 2, a bidirectional screw rod 13 is rotatably arranged between each L-shaped plate 11 and the corresponding fixing plate 12, and a first bevel gear 14 is fixedly sleeved on both ends of each bidirectional screw rod 13, the front and rear side walls of the first fixing block 2 are provided with connecting mechanisms, the front and rear side walls of the second fixing block 3 are symmetrically fixed with two mounting plates 15, the side walls of each mounting plate 15 are fixedly arranged with an internal threaded tube 16, and each internal threaded tube 16 matches the corresponding connecting mechanism, and the provided connecting mechanism can realize the connection and fixation of the first fixing block 2 and the second fixing block 3, and achieve the effect of facilitating the disassembly of the pipeline body 1 on the basis of ensuring the clamping of the pipeline body 1, so as to facilitate the disassembly, replacement or maintenance of the pipeline body 1 when a failure occurs.

[0033] like Figure 1 and Figure 3 As shown, the connecting mechanism includes two mounting blocks 17 and two screws 18. The two mounting blocks 17 are symmetrically fixed on the side walls of the first fixing block 2. The two screws 18 are respectively rotatably penetrated into the corresponding mounting blocks 17. The two screws 18 are respectively threadedly penetrated into the corresponding internal threaded tubes 16. One end of each screw 18 away from the corresponding internal threaded tube 16 is fixedly connected to a second bevel gear 19. Each first bevel gear 14 is meshedly connected with the corresponding second bevel gear 19. By utilizing the threaded sleeve connection of the set screw 18 and the corresponding screw 18 and the corresponding internal threaded tube 16, the connection between the first fixing block 2 and the second fixing block 3 can be achieved, so that the pipeline body 1 can be clamped.

[0034] Embodiment 2

[0035] Based on the first embodiment, Figure 1 and Figure 3 As shown, the rod wall of the bidirectional screw rod 13 is symmetrically threaded with two sliders 20, the side wall of each slider 20 is fixedly connected with an L-shaped rod 21, and the side wall of the internal threaded tube 16 is fixedly provided with a triangular block 22, and the end of the L-shaped rod 21 away from the slider 20 is in contact with the inclined surface of the triangular block 22, and the end of the L-shaped rod 21 in contact with the corresponding inclined surface of the triangular block 22 is set as an arc end face. By utilizing the set arc end face, the friction between the L-shaped rod 21 and the corresponding inclined surface of the triangular block 22 can be reduced, so that the two L-shaped rods 21 can further fix the position of the second fixed block 3 when squeezing the corresponding triangular block 22.

[0036] Embodiment 3

[0037] Based on the first embodiment, Figure 4 As shown, a worm 23 is rotatably arranged between the two L-shaped plates 11, and two bidirectional lead screws 13 both penetrate the corresponding L-shaped plates 11 and are respectively fixedly sleeved with worm wheels 24, and the two worm wheels 24 are both meshingly connected with the worm 23, and one end of the worm 23 penetrates the corresponding L-shaped plates 11 and is fixedly connected with a crank 27. The crank 27 can be used to facilitate the driving of the worm 23 to rotate, thereby realizing the synchronous rotation of the two worm wheels 24, and further driving the two bidirectional lead screws 13 to rotate.

[0038] Embodiment 4

[0039] Based on the first embodiment, Figure 1-3 As shown, a bellows 25 is fixedly connected between the first fixed block 2 and the second fixed block and the corresponding U-shaped plate 8, and each bellows 25 is movably connected to the corresponding elastic telescopic rod 7. The provided bellows 25 can block the corresponding elastic telescopic rod 7, thereby preventing seabed mud from entering the interior of the elastic telescopic rod 7 and affecting the normal extension and retraction of the elastic telescopic rod 7.

[0040] Embodiment 5

[0041] Based on the second embodiment, Figure 1 and Figure 3 As shown, a limit rod 26 is fixedly arranged between the two mounting blocks 17, and the limit rod 26 is movably arranged inside the two L-shaped rods 21. The limit rod 26 can be used to achieve sliding limitation of the L-shaped rod 21, thereby preventing the L-shaped rod 21 from rotating with the bidirectional screw rod 13.

[0042] Embodiment 6

[0043] Based on Example 5, Figure 1As shown, the middle rod wall of each bidirectional screw rod 13 is rotatably sleeved with a support plate 5 fixedly connected to the side wall of the first fixed block 2, and each support plate 5 is fixedly sleeved with the rod wall of the corresponding limit rod 26. By utilizing the set support plate 5, the bidirectional screw rod 13 and the limit rod 26 can be stably reinforced, thereby ensuring the stable installation of the bidirectional screw rod 13.

[0044] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pipeline vortex-induced vibration rectification device, comprising a pipeline body (1), a first fixing block (2) and a second fixing block (3), characterized in that: The first fixing block (2) and the second fixing block (3) are clamped and arranged on the outside of the pipeline body (1); a U-shaped block (4) is fixedly arranged on the opposite side of the first fixing block (2) and the second fixing block (3); a rectifier assembly (6) is rotatably arranged inside each of the U-shaped blocks (4); two elastic telescopic rods (7) are symmetrically fixedly arranged on the opposite side of the first fixing block (2) and the second fixing block (3); a free end of each elastic telescopic rod (7) is connected to a U-shaped plate (8); a rotating rod (9) is rotatably sleeved inside each of the U-shaped plates (8); and a roller (10) matching the corresponding rectifier assembly (6) is fixedly sleeved on the rod wall of each rotating rod (9); Two L-shaped plates (11) and two fixed plates (12) are symmetrically fixedly arranged on the side wall of the first fixed block (2); a bidirectional screw rod (13) is rotatably arranged between each of the L-shaped plates (11) and the corresponding fixed plate (12); a first bevel gear (14) is fixedly sleeved on both ends of each of the bidirectional screw rods (13); a connecting mechanism is arranged on the front and rear side walls of the first fixed block (2); two mounting plates (15) are symmetrically fixedly arranged on the front and rear side walls of the second fixed block (3); an internally threaded tube (16) is fixedly arranged on the side wall of each of the mounting plates (15); and each of the internally threaded tubes (16) matches the corresponding connecting mechanism.

2. A pipeline vortex-induced vibration rectification device according to claim 1, characterized in that: The connection mechanism comprises two mounting blocks (17) and two screw rods (18), the two mounting blocks (17) are symmetrically fixedly arranged on the side wall of the first fixed block (2), the two screw rods (18) are respectively rotatably arranged inside the corresponding mounting blocks (17), the two screw rods (18) are respectively threadedly arranged inside the corresponding internal threaded tube (16), one end of each screw rod (18) away from the corresponding internal threaded tube (16) is fixedly connected to the second bevel gear (19), and each first bevel gear (14) is meshedly connected to the corresponding second bevel gear (19).

3. The pipeline vortex-induced vibration rectifying device according to claim 1 is characterized in that: The rod wall of the bidirectional screw rod (13) is symmetrically threaded with two sliders (20), the side wall of each slider (20) is fixedly connected with an L-shaped rod (21), the side wall of the internal threaded tube (16) is fixedly provided with a triangular block (22), and one end of the L-shaped rod (21) away from the slider (20) is in contact with the inclined surface of the triangular block (22).

4. A pipeline vortex-induced vibration rectification device according to claim 1, characterized in that: A worm (23) is rotatably arranged between the two L-shaped plates (11), the two bidirectional screw rods (13) both penetrate the corresponding L-shaped plates (11) and are respectively fixedly sleeved with worm wheels (24), and the two worm wheels (24) are both meshingly connected with the worm (23).

5. The pipeline vortex-induced vibration rectification device according to claim 1, characterized in that: A bellows (25) is fixedly connected between the first fixed block (2) and the second fixed block (3) and the corresponding U-shaped plate (8), and each of the bellows (25) is movably sleeved with a corresponding elastic telescopic rod (7).

6. A pipeline vortex-induced vibration rectification device according to claim 2, characterized in that: A limiting rod (26) is fixedly arranged between the two installation blocks (17), and the limiting rod (26) is movably arranged inside the two L-shaped rods (21).

7. The pipeline vortex-induced vibration rectification device according to claim 3 is characterized in that: One end of the L-shaped rod (21) that contacts the inclined surface of the corresponding triangular block (22) is configured as an arc-shaped end surface.

8. The pipeline vortex-induced vibration rectifying device according to claim 4, characterized in that: One end of the worm (23) passes through the corresponding L-shaped plate (11) and is fixedly connected to a crank (27).

9. The pipeline vortex-induced vibration rectifying device according to claim 6, characterized in that: The middle rod wall of each bidirectional screw rod (13) is rotatably sleeved with a support plate (5) fixedly connected to the side wall of the first fixed block (2), and each support plate (5) is fixedly sleeved with the rod wall of the corresponding limiting rod (26).

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