CN112145807A - Device and method for inhibiting vortex-induced vibration of submarine pipeline - Google Patents
Device and method for inhibiting vortex-induced vibration of submarine pipeline Download PDFInfo
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- CN112145807A CN112145807A CN202011012856.2A CN202011012856A CN112145807A CN 112145807 A CN112145807 A CN 112145807A CN 202011012856 A CN202011012856 A CN 202011012856A CN 112145807 A CN112145807 A CN 112145807A
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- vortex
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- fixedly connected
- pipeline
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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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
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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
Abstract
The invention discloses a device and a method for inhibiting vortex-induced vibration of a submarine pipeline, wherein the device comprises two supporting plates, a driving cavity is formed in each of the two supporting plates, two lead screws are rotatably connected to the opposite cavity walls of the two driving cavities through bearings, threads on the two lead screw rod walls in each driving cavity are symmetrically arranged, and one end of each of the four lead screws respectively penetrates through and extends into the two driving cavities, so that the device and the method have the beneficial effects that: when the device for inhibiting the vortex-induced vibration of the submarine pipeline is used, the pipeline can be placed between the two supporting plates, then the clamping blocks and the clamping grooves can be driven to clamp the pipelines with different sizes, so that the pipeline can be supported, the pipeline is prevented from shaking randomly when used on the seabed, and meanwhile, a protection mechanism is arranged outside to protect the pipeline, so that the pipeline is prevented from being damaged due to the vibration of random submarine vortex of the pipeline.
Description
Technical Field
The invention relates to a device and a method for inhibiting vortex-induced vibration, in particular to a device and a method for inhibiting the vortex-induced vibration of a submarine pipeline, and belongs to the technical field of vortex-induced vibration inhibition.
Background
When the fluid bypasses the blunt body structure, the back part of the structure generates alternately-falling vortexes due to physical reasons such as fluid viscosity and the like; this vortex motion causes the structure to be subjected to alternating pulsating transverse forces (known as lift) and to the flow-wise forces exerted by the fluid on the structure, i.e. the structure is subjected to drag; the structure can be displaced along the flowing direction after being subjected to resistance, so that end buildings such as platforms and the like which are linked with the column structure can drift within a certain range; the structure is subjected to a lifting force, the structure can vibrate (vortex-induced vibration) due to the alternate change of the directionality of the structure, and under special conditions, when the vortex shedding frequency formed after an incoming flow bypasses the cylinder is close to the natural frequency of the structure, namely, the vortex shedding frequency resonates, the structure oscillation amplitude is increased sharply, and even the structure can be damaged by fatigue, so that structural damage such as cracking or fracture occurs, and corresponding production activities and even production stop are influenced.
When the existing vortex-induced vibration suppression equipment is used, the protection equipment which is arranged in a rhombic shape is simply arranged outside, the existing vortex-induced vibration suppression equipment only has a certain flow dividing effect on the torrent on the seabed, still can shake along with the torrent on the seabed in the long-time use process, and only has a certain vortex-induced vibration suppression effect, so that a device and a method for suppressing the vortex-induced vibration of the submarine pipeline are needed to be provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a device and a method for inhibiting vortex-induced vibration of a submarine pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme:
designing a device for inhibiting vortex-induced vibration of a submarine pipeline, which comprises two supporting plates, wherein a driving cavity is formed in each of the two supporting plates, two screw rods are rotatably connected to opposite cavity walls of the two driving cavities through bearings, threads on two screw rod walls in each driving cavity are symmetrically arranged, one end of each of the four screw rods respectively penetrates and extends into the two driving cavities, a first bevel gear is fixedly connected to each of the four screw rods in the two driving cavities, a rotating rod is rotatably connected to the cavity wall at the bottom end of each of the two driving cavities through bearings, one end of each of the two rotating rods respectively penetrates and extends into the two driving cavities, a second bevel gear is fixedly connected to each of the two ends of each of the two rotating rods in the two driving cavities, and the two first bevel gears are respectively meshed with the two second bevel gears, the other ends of the two rotating rods respectively penetrate through corresponding side walls of the supporting plate and extend out of the supporting plate, one end of each of the two rotating blocks, which is positioned outside the supporting plate, is fixedly connected with a rotating block, the side wall, which is far away from one side of each of the two rotating blocks, is provided with a rectangular groove, the insides of the two rectangular grooves are respectively and slidably connected with a rectangular block, one end of each rectangular block penetrates through a notch of the rectangular groove and extends outwards, one end of each rectangular block, which is positioned outside the rectangular groove, is fixedly connected with a rotating handle, the rod walls, which are positioned in the two driving cavities, of the four screw rods are respectively and threadedly connected with a screw nut, the outer side walls of the four screw nuts are respectively and fixedly sleeved with a sliding block, the four sliding blocks are respectively and slidably connected in the two driving cavities, and through holes are respectively formed in the, four equal fixedly connected with connecting rod, four on the position that the sliding block corresponds four through-holes the one end that the sliding block was kept away from to the connecting rod runs through the through-hole that corresponds respectively and runs through outside extending to the backup pad, four the connecting rod is located two grip blocks of the common fixedly connected with of the outer one end of backup pad, two all set up a centre gripping groove that is the arc setting on the lateral wall of grip block one side in opposite directions, two common centre gripping has a pipeline, two between the centre gripping groove equal slewing mechanism of fixedly connected with, two on the lateral wall of grip block to keeping away from one side the equal buffer gear of fixedly connected with of one end that slewing mechanism kept away from mutually, two common fixed mounting has a protection machanism on the buffer gear, the last fixed establishment that is provided with of protection.
Preferably, two slewing mechanism all include a dead lever, two dead lever fixed connection is on two grip blocks keep away from the lateral wall of one side mutually, two the equal fixedly connected with one of one end that the dead lever was kept away from mutually is the fixing base that the arc set up, two all set up a spout that is the T type setting on the fixing base, two equal sliding connection has a slider in the spout, two wherein one end of slider runs through the notch that corresponds the spout respectively and outwards extends.
Preferably, two buffer gear all includes a mounting panel, two the mounting panel is fixed connection respectively and lies in the outer one end of spout at two sliders, all runs through on two mounting panels and has seted up a mounting hole, two equal sliding connection has an installation pole in the mounting hole, two the both ends of installation pole run through the both ends drill way that corresponds the mounting hole respectively and outwards extend and a fixed plate of fixedly connected with.
Preferably, the protection machanism includes two first guard plates that are the arc setting, two first guard plate difference fixed connection is on four fixed plates, and two first guard plate one end in opposite directions all sets up two draw-in grooves that are the T type setting, four equal sliding connection has a fixture block that is the T type setting in the draw-in groove, four the fixture block all runs through and extends to outside the draw-in groove, four the fixture block is located two second guard plates of one end difference fixedly connected with outside the draw-in groove.
Preferably, the fixing mechanism comprises four first threaded holes, the four first threaded holes are respectively formed in the bottoms of the four clamping grooves, four second threaded holes are formed in the four clamping blocks corresponding to the four first threaded holes in a penetrating mode, and the four first threaded holes are respectively in threaded connection with the corresponding second threaded holes through a common thread.
Preferably, the two sliding grooves and the two sliding blocks are arranged in an arc shape.
Preferably, two equal fixedly connected with two springs on the mounting panel, and four the one end that two mounting panels were kept away from to the spring is fixed connection respectively on four fixed plates.
Preferably, the four springs are respectively sleeved on a section of the rod wall of the two mounting rods outside the mounting holes.
Preferably, the pipeline is arranged in a superposition manner with the centers of the two fixing seats and the two sliding chutes.
A method for inhibiting vortex-induced vibration of a submarine pipeline is characterized by comprising the following steps:
first, drive the rectangular block through rotating the handle and rotate, and the rectangular block can drive the turning block through the cooperation with the rectangular channel and rotate, and the turning block drives the dwang and rotates, and the dwang then drives the lead screw through the meshing of first bevel gear with second bevel gear and rotates, the lead screw removes at the drive intracavity through the cooperation drive sliding block with screw-nut when rotating, the sliding block can drive grip block synchronous movement through the connecting rod simultaneously, and the grip block drives the centre gripping groove and carries out the centre gripping to the pipeline, and then can carry out the centre gripping to the not pipeline of equidimension fixed, make the pipeline can not cause the vibration damage along with the production of vortex excitation at will.
The second step, when the grip block carries out the centre gripping to the pipeline of equidimension not, can drive first guard plate simultaneously and remove, and then can select the second guard plate of equidimension not according to the interval between two first guard plates to fix between first guard plate and the second guard plate through the bolt, and then can put back inside through first guard plate and second guard plate, avoided the rivers direct action in seabed on the pipeline, thereby slow down the production of vortex induced vibration.
And thirdly, when the water flow on the seabed acts on the first protection plate and the second protection plate, certain thrust can be generated on the first protection plate, the first protection plate can drive the fixing plate and the mounting rod to move, and then the first protection plate and the second protection plate can move synchronously, so that certain buffering is generated on seabed torrent, and the seabed torrent moves back and forth according to pressure when surrounding eddy current is generated, so that the whole buffering effect is good, and under the support of the spring, the seabed torrent can be prevented from sliding randomly under the impact of the seabed torrent, and the pipeline is damaged by vibration generated inside.
And fourthly, when the submarine water flow acts on the side edges of the first protection plate and the second protection plate, certain thrust can be generated on the side edges of the first protection plate and the second protection plate, so that the first protection plate and the second protection plate can be pushed to move laterally, the slide block can move in the sliding groove, the direction of the first protection plate and the direction of the second protection plate can be adjusted to face the position of the water flow, and then the protection can be continuously performed on the inner pipeline.
The device and the method for inhibiting the vortex-induced vibration of the submarine pipeline have the beneficial effects that:
1. when the device for inhibiting the vortex-induced vibration of the submarine pipeline is used, the pipeline can be placed between the two supporting plates, then the clamping blocks and the clamping grooves can be driven to clamp the pipelines with different sizes, so that the pipeline can be supported, the pipeline is prevented from shaking randomly when used on the seabed, and meanwhile, a protection mechanism is arranged outside to protect the pipeline, so that the pipeline is prevented from being damaged due to the vibration of random submarine vortex of the pipeline.
2. When the device for inhibiting the vortex-induced vibration of the submarine pipeline is used, when a submarine vortex acts on an external protection mechanism, the protection mechanism is buffered and relieved through the buffer mechanism, and meanwhile, the angle of the protection mechanism can be adjusted through the rotating mechanism, so that the protection mechanism always faces the impact angle of the vortex, and the submarine vortex can be buffered all the time.
Drawings
Fig. 1 is a schematic structural diagram of a device and a method for suppressing vortex-induced vibration of a submarine pipeline according to the present invention;
fig. 2 is a structural diagram illustrating an operating state of a buffering mechanism in the device and method for suppressing vortex-induced vibration of a submarine pipeline according to the present invention;
fig. 3 is a structural diagram illustrating an operating state of a rotating mechanism in the device and method for suppressing vortex-induced vibration of a submarine pipeline according to the present invention;
FIG. 4 is a schematic view of a connection structure of a protection mechanism and a fixing mechanism in the device and method for suppressing vortex-induced vibration of a submarine pipeline according to the present invention;
FIG. 5 is a schematic view of an installation structure of a support plate in the device and method for suppressing vortex-induced vibration of a submarine pipeline according to the present invention;
fig. 6 is a schematic view of a connection structure of a rotating mechanism, a buffering mechanism and a protection mechanism in the device and method for suppressing the vortex-induced vibration of the submarine pipeline according to the present invention;
FIG. 7 is an enlarged schematic structural view of part A of FIG. 1 illustrating a device and method for suppressing vortex-induced vibration in a subsea pipeline according to the present invention;
fig. 8 is an enlarged schematic structural diagram of a part a in fig. 1 of a device and a method for suppressing vortex-induced vibration of a submarine pipeline according to the present invention.
In the figure: the device comprises a supporting plate 1, a driving cavity 2, a screw rod 3, a first bevel gear 4, a rotating rod 5, a second bevel gear 6, a rotating block 7, a rectangular groove 8, a rectangular block 9, a rotating handle 10, a screw rod nut 11, a sliding block 12, a through hole 13, a connecting rod 14, a clamping block 15, a clamping groove 16, a pipeline 17, a rotating mechanism 18, a fixing rod 181, a fixing seat 182, a sliding groove 183, a sliding block 184, a buffer mechanism 19, a mounting plate 191, a mounting hole 192, a mounting rod 193, a fixing plate 194, a spring 195, a protection mechanism 20, a first protection plate 201, a clamping groove 202, a clamping block 203, a second protection plate 204, a fixing mechanism 21, a first threaded hole 211, a second threaded hole 212 and.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-8, a device for suppressing vortex-induced vibration of a submarine pipeline comprises two support plates 1, wherein a driving cavity 2 is formed inside each of the two support plates 1, two lead screws 3 are rotatably connected to opposite cavity walls of the two driving cavities 2 through bearings, threads on rod walls of the two lead screws 3 in each driving cavity 2 are symmetrically arranged, one end of each of the four lead screws 3 respectively penetrates and extends into the two driving cavities 2, a first bevel gear 4 is fixedly connected to each of the four lead screws 3 in the two driving cavities 2, a rotating rod 5 is rotatably connected to a cavity wall at the bottom end of each of the two driving cavities 2 through bearings, one end of each of the two rotating rods 5 respectively penetrates and extends into the two driving cavities 2, one end of each of the two rotating rods 5 in the two driving cavities 2 is fixedly connected with a second bevel gear 6, the two first bevel gears 4 are respectively engaged with the two second bevel gears 6, the other ends of the two rotating rods 5 respectively penetrate through the corresponding side walls of the support plate 1 and extend out of the support plate 1, one ends of the two rotating blocks 5, which are positioned outside the support plate 1, are fixedly connected with a rotating block 7, the side walls of the two rotating blocks 7, which are far away from one side, are respectively provided with a rectangular groove 8, the insides of the two rectangular grooves 8 are respectively and slidably connected with a rectangular block 9, one end of each rectangular block 9 penetrates through the notch of the rectangular groove 8 and extends outwards, one end of each rectangular block 9, which is positioned outside the rectangular groove 8, is fixedly connected with a rotating handle 10, the rod walls of the four screw rods 3, which are positioned in the two driving cavities 2, are respectively and threadedly connected with a screw nut 11, the outer side walls of the four screw nuts 11 are respectively and fixedly sleeved with a sliding block 12, the four sliding blocks 12 are respectively and slidably connected in the two driving cavities 2, and through holes 13 are respectively, the positions of four sliding blocks 12 corresponding to four through holes 13 are fixedly connected with a connecting rod 14, one end of each connecting rod 14 far away from the sliding block 12 penetrates through the corresponding through hole 13 and extends out of the support plate 1, one end of each connecting rod 14 outside the support plate 1 is fixedly connected with two clamping blocks 15 together, the side walls of the two clamping blocks 15 on the opposite sides are provided with a clamping groove 16 which is arranged in an arc shape, a pipeline 17 is clamped between the two clamping grooves 16 together, the rectangular block 9 is driven to rotate by rotating the handle 10, the rectangular block 9 can drive the rotating block 7 to rotate by matching with the rectangular groove 8, the rotating block 7 drives the rotating rod 5 to rotate, the rotating rod 5 drives the screw rod 3 to rotate by meshing of the first bevel gear 4 and the second bevel gear 6, the sliding block 12 is driven to move in the driving cavity 2 by matching with the screw nut 11 when the screw rod 3 rotates, simultaneously sliding block 12 can drive grip block 15 synchronous motion through connecting rod 14, and grip block 15 drives centre gripping groove 16 and carries out the centre gripping to the pipeline, and then can carry out the centre gripping to the pipeline 17 of equidimension not fixed for pipeline 17 can not cause the vibration damage along with the production of vortex-induced at will.
Example 2 a protection mechanism 20 is fixedly mounted on two buffer mechanisms 19 together, a fixing mechanism 21 is disposed on the protection mechanism 20, the protection mechanism 20 includes two first protection plates 201 disposed in an arc shape, the two first protection plates 201 are respectively fixedly connected to four fixing plates 194, two slots 202 disposed in a T shape are respectively formed at opposite ends of the two first protection plates 201, a fixture block 203 disposed in a T shape is slidably connected in each of the four slots 202, the four fixture blocks 203 extend through the slots 202, two second protection plates 204 are respectively fixedly connected at ends of the four fixture blocks 203 located outside the slots 202, the fixing mechanism 21 includes four first threaded holes 211, the four first threaded holes 211 are respectively formed at bottoms of the four slots 202, and four second threaded holes 212 are respectively formed in the four fixture blocks 203 corresponding to positions of the four first threaded holes 202, four first screw holes 211 respectively with correspond second screw hole 212 in common threaded connection have a bolt 213, when grip block 15 carries out the centre gripping to the not pipeline 17 of equidimension, can drive first guard plate 201 simultaneously and remove, and then can select not equidimension second guard plate 204 according to the interval between two first guard plates 201, and fix between first guard plate 201 and the second guard plate 204 through bolt 213, and then can put back to inside through first guard plate 201 and second guard plate 204, the rivers direct action on pipeline 17 of having avoided the seabed, thereby slow down the production of vortex induced vibration.
Example 3: the ends, far away from each other, of the two rotating mechanisms 18 are fixedly connected with a buffer mechanism 19, each buffer mechanism 19 comprises a mounting plate 191, the two mounting plates 191 are fixedly connected to the ends, located outside the sliding grooves 813, of the two sliding blocks 184 respectively, a mounting hole 192 is formed in each of the two mounting plates 191 in a penetrating mode, a mounting rod 193 is connected in each of the two mounting holes 192 in a sliding mode, two ends of each mounting rod 193 penetrate through orifices in two ends of the corresponding mounting hole 192 respectively and extend outwards and are fixedly connected with a fixing plate 194, two springs 195 are fixedly connected to the two mounting plates 191, one ends, far away from the two mounting plates 191, of the four springs 195 are fixedly connected to the four fixing plates 194 respectively, the four springs 195 are sleeved on a section of rod wall, located outside the mounting hole 192, when the water flow in the seabed acts on the first protection plate 201 and the second protection plate 204, will produce certain thrust at first guard plate 201, and first guard plate can drive fixed plate 194 and installation pole 193 and produce the removal, and then can electronic first guard plate 201 and second guard plate 204 synchronous motion, and then produce certain buffering to the seabed torrent, and according to pressure round trip movement when producing the vortex that encircles, make holistic buffering effect better, and under spring 195's support, can avoid it can slide at will under the impact of seabed torrent, and produce the vibration damage in the inside of pipeline 17.
Example 4: the side walls of the two clamping blocks 15 far away from one side are fixedly connected with a rotating mechanism 18, each rotating mechanism 18 comprises a fixing rod 181, the two fixing rods 181 are fixedly connected to the side walls of the two clamping blocks 15 far away from one side, the ends of the two fixing rods 181 far away from one side are fixedly connected with fixing seats 182 arranged in an arc shape, each fixing seat 182 is provided with a sliding groove 183 arranged in a T shape, each sliding groove 183 is connected with a sliding block 184 in a sliding manner, one end of each sliding block 184 penetrates through the notch of the corresponding sliding groove 183 and extends outwards, the two sliding grooves 183 and the two sliding blocks 184 are arranged in an arc shape, the pipeline 17 is arranged in a superposition shape with the two fixing seats 182 and the centers of the two sliding grooves 183, when the water flow in the seabed acts on the side edges of the first protection plate 201 and the second protection plate 204, a certain thrust force can be generated on the side edges of the first protection plate 201 and the second, and then the first protection plate 201 and the second protection plate 204 are pushed to move laterally, and at this time, the sliding block 184 can move in the sliding groove 183, so that the directions of the first protection plate 201 and the second protection plate 204 can be adjusted to the positions facing the water flow, and the internal pipeline 17 can be protected continuously.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a restrain submarine pipeline vortex induced vibration device, includes two backup pads (1), its characterized in that, two a drive chamber (2) have all been seted up to the inside of backup pad (1).
2. The device for inhibiting the vortex-induced vibration of the submarine pipeline according to claim 2, wherein two lead screws (3) are rotatably connected to opposite cavity walls of the two driving cavities (2) through bearings, threads on the rod walls of the two lead screws (3) in each driving cavity (2) are symmetrically arranged, one end of each of the four lead screws (3) respectively extends into the two driving cavities (2), a first bevel gear (4) is fixedly connected to each of the four lead screws (3) in the two driving cavities (2), a rotating rod (5) is rotatably connected to the cavity wall at the bottom end of each of the two driving cavities (2) through bearings, one end of each of the two rotating rods (5) respectively extends into the two driving cavities (2), and a second bevel gear (6) is fixedly connected to each of the two rotating rods (5) at one end in the two driving cavities (2), the two first bevel gears (4) are respectively meshed with the two second bevel gears (6), the other ends of the two rotating rods (5) respectively penetrate through corresponding side walls of the supporting plate (1) and extend out of the supporting plate (1), one ends of the two rotating blocks (5) located outside the supporting plate (1) are fixedly connected with a rotating block (7), the side wall of one side, far away from one side of each rotating block (7), is provided with a rectangular groove (8), the insides of the two rectangular grooves (8) are respectively and slidably connected with a rectangular block (9), one end of each rectangular block (9) penetrates through a notch of the rectangular groove (8) and extends outwards, one end of each rectangular block (9) located outside the rectangular groove (8) is fixedly connected with a rotating handle (10), and the four lead screws (3) located on rod walls of the two driving cavities (2) are respectively and are in threaded connection with a lead screw nut (11), a sliding block (12) is fixedly sleeved on the outer side wall of each of the four lead screw nuts (11), the four sliding blocks (12) are respectively connected in the two driving cavities (2) in a sliding manner, a through hole (13) is formed in the positions, corresponding to the four sliding blocks (12), of the two driving cavities (2) in a penetrating manner, a connecting rod (14) is fixedly connected to the positions, corresponding to the four through holes (13), of the sliding blocks (12), four ends, far away from the sliding blocks (12), of the connecting rods (14) respectively penetrate through the corresponding through holes (13) and extend out of the supporting plate (1), two clamping blocks (15) are fixedly connected to one end, located outside the supporting plate (1), of each connecting rod (14), two clamping grooves (16) which are arranged in an arc shape are formed in the side wall, opposite to one side of each clamping block (15), and a pipeline (17) is clamped between the two clamping grooves (16) together, the side walls of the two clamping blocks (15) far away from one side are fixedly connected with a rotating mechanism (18), one ends, far away from the two rotating mechanisms (18), of the two rotating mechanisms (18) are fixedly connected with a buffer mechanism (19), the two buffer mechanisms (19) are jointly and fixedly provided with a protection mechanism (20), and the protection mechanism (20) is provided with a fixing mechanism (21); two slewing mechanism (18) all include a dead lever (181), two dead lever (181) fixed connection is two on two grip block (15) keep away from the lateral wall of one side mutually, two the equal fixedly connected with of one end that dead lever (181) kept away from mutually is fixing base (182) that the arc set up, two all set up one on fixing base (182) and be spout (183) that the T type set up, two equal sliding connection has a slider (184), two in spout (183) the wherein one end of slider (184) runs through the notch that corresponds spout (183) respectively and outwards extends.
3. The device for suppressing the vortex-induced vibration of the submarine pipeline according to claim 2, wherein each of the two buffering mechanisms (19) comprises a mounting plate (191), the two mounting plates (191) are fixedly connected to one ends of the two sliding blocks (184) outside the sliding grooves (813), a mounting hole (192) is formed in each of the two mounting plates (191) in a penetrating manner, a mounting rod (193) is slidably connected in each of the two mounting holes (192), and two ends of each of the two mounting rods (193) respectively penetrate through two end openings of the corresponding mounting hole (192), extend outwards, and are fixedly connected with a fixing plate (194).
4. The device for inhibiting the vortex-induced vibration of the submarine pipeline according to claim 2, wherein the protection mechanism (4) comprises two first protection plates (201) arranged in an arc shape, the two first protection plates (201) are respectively and fixedly connected to four fixing plates (194), two clamping grooves (202) arranged in a T shape are respectively formed in opposite ends of the two first protection plates (201), a clamping block (203) arranged in a T shape is respectively and slidably connected into the four clamping grooves (202), the four clamping blocks (203) extend out of the clamping grooves (202), and two second protection plates (204) are respectively and fixedly connected to ends of the four clamping blocks (203) which are located outside the clamping grooves (202).
5. The device for suppressing vortex-induced vibration of the submarine pipeline according to claim 2, wherein the fixing mechanism (21) comprises four first threaded holes (211), the four first threaded holes (211) are respectively formed in the bottoms of the four clamping grooves (202), four second threaded holes (212) are respectively formed in the four clamping blocks (203) corresponding to the positions of the four first threaded holes (202) in a penetrating manner, and a bolt (213) is respectively and jointly screwed in the four first threaded holes (211) and the corresponding second threaded holes (212).
6. The device for suppressing vortex induced vibration of a submarine pipeline according to claim 2, wherein the two chutes (183) and the two sliders (184) are both arc-shaped.
7. The device for suppressing vortex-induced vibration of the submarine pipeline according to claim 3, wherein two springs (195) are fixedly connected to each of the two mounting plates (191), and one ends of the four springs (195) far away from the two mounting plates (191) are respectively and fixedly connected to the four fixing plates (194).
8. The device for suppressing vortex-induced vibration of a subsea pipeline according to claim 7, wherein said four springs (195) are respectively fitted over a section of the wall of two mounting rods (193) located outside said mounting holes (192).
9. The device for suppressing vortex induced vibration of a subsea pipeline according to claim 2, wherein said pipeline (17) is arranged in a manner of coinciding with the centers of the two fixed seats (182) and the two sliding chutes (183).
10. A method of suppressing subsea pipeline vortex induced vibrations according to any of claims 2-9, comprising the steps of:
firstly, a rotating handle (10) is rotated to drive a rectangular block (9) to rotate, the rectangular block (9) can drive a rotating block (7) to rotate through the matching with a rectangular groove (8), the rotating block (7) drives the rotating rod (5) to rotate, the rotating rod (5) drives the screw rod (3) to rotate through the meshing of the first bevel gear (4) and the second bevel gear (6), the sliding block (12) is driven to move in the driving cavity (2) through the matching of the screw rod (3) and the screw rod nut (11) when the screw rod (3) rotates, meanwhile, the sliding block (12) can drive the clamping block (15) to move synchronously through the connecting rod (14), the clamping block (15) drives the clamping groove (16) to clamp the pipeline, furthermore, the pipelines (17) with different sizes can be clamped and fixed, so that the pipelines (17) cannot be damaged by vibration randomly along with the generation of vortex excitation;
secondly, when the clamping block (15) clamps pipelines (17) with different sizes, the first protection plates (201) can be synchronously driven to move, then second protection plates (204) with different sizes can be selected according to the distance between the two first protection plates (201), the first protection plates (201) and the second protection plates (204) are fixed through bolts (213), the inner parts of the first protection plates (201) and the second protection plates (204) can be placed back, the direct action of submarine water flow on the pipelines (17) is avoided, and the generation of vortex-induced vibration is slowed down;
thirdly, when the water flow on the seabed acts on the first protection plate (201) and the second protection plate (204), certain thrust can be generated on the first protection plate (201), the first protection plate can drive the fixing plate (194) and the mounting rod (193) to move, the first protection plate (201) and the second protection plate (204) can be driven to move synchronously, certain buffering is generated on seabed torrent, and the first protection plate can move back and forth according to pressure when surrounding vortex is generated, so that the overall buffering effect is good, and under the support of the spring (195), the submarine torrent can be prevented from sliding randomly under the impact of the seabed torrent, and vibration damage can be generated in the pipeline (17);
and fourthly, when the water flow of the seabed acts on the side edges of the first protection plate (201) and the second protection plate (204), certain thrust can be generated on the side edges of the first protection plate (201) and the second protection plate (204), and then the first protection plate (201) and the second protection plate (204) can be pushed to move laterally, at the moment, the sliding block (184) can move in the sliding groove (183), and then the direction of the first protection plate (201) and the direction of the second protection plate (204) can be adjusted to the position facing the water flow, so that the protection of the internal pipeline (17) can be continued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112943305A (en) * | 2021-02-26 | 2021-06-11 | 成都建工路桥建设有限公司 | Concrete lining trolley capable of reducing ventilation vibration |
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