CN202033164U - Testing device capable of simulating uniform-flow vortex-induced vibration of submarine pipeline - Google Patents
Testing device capable of simulating uniform-flow vortex-induced vibration of submarine pipeline Download PDFInfo
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- CN202033164U CN202033164U CN2011200076939U CN201120007693U CN202033164U CN 202033164 U CN202033164 U CN 202033164U CN 2011200076939 U CN2011200076939 U CN 2011200076939U CN 201120007693 U CN201120007693 U CN 201120007693U CN 202033164 U CN202033164 U CN 202033164U
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Abstract
The utility model relates to a testing device capable of simulating uniform-flow vortex-induced vibration of a submarine pipeline, which is characterized by comprising a false simulation bottom arranged in a towing tank, the two ends of the false simulation bottom respectively penetrates through a column in a sliding way, the top ends of the two columns are both connected onto a towing vehicle arranged on the towing tank, the middle lower parts of the two columns are respectively provided with an end support structure, and the two end support structures are respectively connected with a corresponding shaft end of a submarine pipeline model; and a measurement and analysis system is arranged in the towing tank. The testing device has a delicate structure, the submarine pipeline model can be horizontally arranged in the towing tank, the vortex-induced vibration can be simulated under the uniform flow, the actual submarine conditions and the actual submarine pipeline can also be simulated, and the testing time is longer. Therefore, the testing device can be widely applied in testing of the vortex-induced vibration of the submarine pipeline.
Description
Technical field
The utility model relates to a kind of device of field of ocean engineering, particularly the vortex-induced vibration simulation test device that is evenly flowing down about a kind of submarine pipeline model that is horizontally placed in the towing basin.
Background technology
If the column structure thing is placed in the middle of the incoming flow of certain speed, the whirlpool can take place alternately to rush down in its both sides.Be associated with the generation and the bleed off of whirlpool, cylinder can be subjected to laterally and the fluctuation pressure that flows to.If this moment, cylinder was a resiliency supported, pulsating flow muscle power can cause the vibration of cylinder so, and the vibration of cylinder can change its wake structure again conversely.The interactional problem of this fluidic structures thing is called vortex-induced vibration.For example under the effect of ocean current, be suspended on the flexible pipe such as floating drum, mooring hawser of ocean platform standpipe in the ocean, towing cable, subsea pipeline, spar platform and the vortex-induced vibration phenomenon can occur, will cause the fatigure failure of flexible pipe.
Because the marine oil and gas exploitation advances to deep water, the standpipe in the deepwater environment can be considered the elongated flexible structure, and the small deformation theory is no longer suitable, and this makes that the vortex-induced vibration problem of standpipe is more outstanding.So far, be exactly model test method to one of most important method of research of flexible pipe vortex-induced vibration phenomenon.The phenomenon of simulating in the test approaches the truth of occurring in nature more, adopts the reliability that advanced test unit can the warranty test data.Can design the vibration-repressing device of better inhibition marine riser vortex-induced vibration by the method for model test.
Through the retrieval of prior art is found present vortex vibration testing device generally carries out in towing oceanographic engineering swimmer's pool, what have carries out in annular water tank, and what have drags standpipe with towboat and carry out the vortex-induced vibration test.Through the prior art document is retrieved discovery, paper " Laboratory Investigation of Long RiserVIV Response " in the 14th international coastal waters and polar region engineering conference " Proceedings of the Fourteen (2004) International Offshore and PolarEngineering Conference " (experimental study of long riser vortex excited vibration response) is about flexible pipe vortex-induced vibration experimental study, mentioned a kind of flexible pipe vortex-induced vibration model test technology in the literary composition, compliant riser is horizontally placed in the towing basin, and trailer drags riser model and produces uniform flow field.With the motion that the acceleration transducer that is arranged in riser interiors is measured standpipe, in the standpipe wall, arrange the dependent variable in the grating measuring standpipe wall.By analysis, the weak point of this experimental technique is: 1, generally can only simulate the vortex-induced vibration of small scale pipe fitting, the vortex-induced vibration that is difficult to effectively carry out under the real Reynolds number is tested.2, pulled the restriction of oceanographic engineering swimmer's pool length, resulting test section distance is less, and the test figure that records is less; 3, can not simulate the residing rough physical features environment of submarine pipeline truly.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides the equal uniform flow vortex-induced vibration of a kind of submarine pipeline simulation test device, this device is horizontally placed on the submarine pipeline model in the towing basin, carry out the vortex-induced vibration simulation, can simulate true sub sea conditions and physical size submarine pipeline, the test duration is longer.
For achieving the above object, the utility model is taked following technical scheme: the equal uniform flow vortex-induced vibration of a kind of submarine pipeline simulation test device, it is characterized in that: it comprises the false end of the simulation that is arranged in the towing basin, slide respectively and be equipped with column in the two ends at the false end of described simulation, the common trailer that is arranged on described towing basin top that connects in the top of two described columns, the middle and lower part of two described columns is provided with an end support structure respectively, and two described end support structure connect the corresponding axle head of a submarine pipeline model respectively; Be provided with measuring and analysis system in the described towing basin.
The false end of described simulation, comprise horizontal steel plate, and the middle part of described horizontal steel plate is provided with a protruding brandreth, and on the described protruding brandreth, with the contact position parcel protection rubber of described submarine pipeline model, two described columns slide and are located on the described horizontal steel plate.
Each described column includes upper and lower two sections, each section be shaped as the hollow cylinder tubular, connect by ring flange between upper and lower two sections of described column.
Each described end support structure comprises the coupling sleeve that is arranged on described submarine pipeline model respective end, described coupling sleeve connects the submarine pipeline fixture splice by universal joint, described submarine pipeline fixture splice is fixed on the vertical back up pad, described vertical back up pad is welded on the horizontal supporting plate bottom, and described horizontal supporting plate is arranged on the described column.
Described horizontal supporting plate is provided with some bolts hole, and each described bolt hole cooperates with the bolt hole of the described ring flange of the upper and lower segmentation junction of described column, by bolt the upper and lower segmentation of described horizontal supporting plate and described column is fastenedly connected.
Described measuring and analysis system comprises the underwater camera equipment that is arranged on described column bottom and described trailer afterbody; Axially evenly be arranged on the some grating strain transducers on the described submarine pipeline model; Be arranged on fiber data acquisition system, video recording acquisition system, wireless signal receiver and computer equipment in the trailer pulpit of described towing basin, preset data analysis software in the described computing machine.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the utility model adopts the mode of high speed trailer and towing basin relative motion to simulate uniform incoming flow, and the length that therefore can make full use of towing basin is simulated the real Reynolds number vortex-induced vibration of large-scale submarine pipeline.2, the utility model is because the two ends slip is equipped with column at the false end of simulation, the false end of simulation, can be free to slide along the column hypomere is upper and lower, therefore, can regulate the distance between the false end of simulation and the submarine pipeline model, and the different seabeds physical features that can simulate as required, change the shape of protruding support, thereby make the external environment condition of simulation submarine pipeline truer.3, the utility model is owing to be provided with column module, end portion supports module, the false bed die piece of simulation, submarine pipeline model module, measuring and analysis system module, and each module is separate, is connected by high-strength bolt, therefore, installs, dismounting is convenient.4, be connected with the trailer bottom by ring flange on the column of the present utility model, therefore, but the spacing free adjustment of two heel posts, to cooperate the submarine pipeline model of different length.5, end support structure of the present utility model is made up of coupling sleeve, universal joint, submarine pipeline fixture splice, vertical back up pad and horizontal supporting plate, and each modular construction is simple, is easy to assembling, and it is convenient to replace.6, the false end of simulation of the present utility model, be made of horizontal steel plate and protruding brandreth, and protruding brandreth is an individual components, can make different shapes according to sea-bed topography, and the brandreth of variant shape can be replaced easily, dismantle.7, submarine pipeline model module of the present utility model is independently made, and can change diameter and length as required, the dismounting facility.8, measuring and analysis system of the present utility model is made up of fiber data acquisition system, video recording acquisition system, wireless signal receiver and computer equipment, and each system works alone, and does not disturb mutually.The utility model structure is provided with ingenious, the submarine pipeline model can be horizontally placed in the towing basin, is evenly flowing down the simulation vortex-induced vibration, can simulate true sub sea conditions and physical size submarine pipeline, test duration is longer, therefore, can be widely used in the vortex-induced vibration process of the test of submarine pipeline.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is axle schematic side view such as the following structure of the utility model trailer
Fig. 3 is the utility model simulation synoptic diagram of the false end
Fig. 4 is the utility model column segmentation synoptic diagram
Fig. 5 is the utility model submarine pipeline model and end portion supports mechanism structure synoptic diagram
Fig. 6 is a horizontal supporting plate synoptic diagram in the utility model submarine pipeline and the end portion supports mechanism
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1 and Figure 2, the utility model comprises the false end 2 of the simulation that is arranged in the towing basin 1, the two ends at the false end 2 of simulation slide respectively be arranged in column 3, two columns 3 the top respectively by the common trailer 4 that is arranged on towing basin 1 top that connects of ring flange.The middle and lower part of two columns 3 is provided with an end support structure 5 respectively, and both ends supporting construction 5 connects the corresponding axle head of submarine pipeline model 6 respectively.Be provided with the motion and the stressed measuring and analysis system (not shown) of gathering measurement that are used for submarine pipeline model 6 in the towing basin 1.
As Fig. 2, shown in Figure 3, the false end 2 of simulation, comprise horizontal steel plate 21, and the middle part of horizontal steel plate 21 is provided with a protruding brandreth 22.The sea situation that projection brandreth 22 can be simulated as required; be welded into different shapes; projection brandreth 22 is supported naturally with submarine pipeline model 6; be protection submarine pipeline model 6, parcel protection rubber (not shown) on the protruding brandreth 22 in the place that protruding brandreth 22 contacts with submarine pipeline model 6.
As shown in Figure 4, each column 3 includes upper and lower two sections, each section be shaped as the hollow cylinder tubular, connect by ring flange 31 between upper and lower two sections columns 3.The hypomere of two columns 3 is located in the two ends of horizontal steel plate 21 respectively, and horizontal steel plate 21 can be free to slide along the hypomere of two columns 3, to regulate the distance between the false end 2 of simulation and the submarine pipeline model 6.
As shown in Figure 5, end support structure 5 is used for fixing and supports submarine pipeline model 6, each end support structure 5 comprises the coupling sleeve 51 that is arranged on submarine pipeline model 6 respective end, coupling sleeve 51 connects submarine pipeline fixture splice 53 by a universal joint 52, submarine pipeline fixture splice 53 is fixed on the vertical back up pad 54, vertically back up pad 54 is welded on a horizontal supporting plate 55 bottoms, and horizontal supporting plate 55 is arranged on the upper and lower segmentation junction of column 3.
As shown in Figure 6, horizontal supporting plate 55 is provided with some bolts hole 56, and each bolt hole 56 cooperates with the bolt hole of the ring flange 31 of the upper and lower segmentation junction of column 3, by bolt the upper and lower segmentation of horizontal supporting plate 55 and column 3 is fastenedly connected.
Measuring and analysis system comprises the underwater camera equipment that is arranged on column 3 bottoms and trailer 4 afterbodys; Axially evenly be arranged on the some grating strain transducers on the submarine pipeline model 6; Be arranged on fiber data acquisition system, video recording acquisition system, wireless signal receiver and computer equipment in the trailer pulpit of towing basin 1 top, preset data analysis software in the computing machine.In the process of the test, fiber data acquisition system and video recording acquisition system receive the signal of grating strain transducer and the signal of picture pick-up device by wireless signal receiver, and in real time the data that receive are stored and handled by the data analysis software that presets in the computing machine.
In the foregoing description, trailer 4 is the existing testing equipments on the towing basin 1, can realize the linear uniform motion under the two-way friction speed, and trailer 4 provides power, is provided with measuring and analysis system in the trailer pulpit that towing basin 1 top is provided with.When measuring and analysis system was carried out image data, the middle steady section data that need only get in trailer 4 towing submarine pipeline models 6 motion processes got final product.
The utility model is selected proper model scaling factor and operating condition of test earlier according to the size of towing basin, the size of seabed pipe fitting, the concrete condition of operating condition of test and the economy of test.Require to determine the size and the material of each module according to the requirement of strength of whole test device and vibration control.Installation process concrete after each module is ready respectively is as follows:
1) on the ground coupling sleeve 51, universal joint 52, submarine pipeline fixture splice 53, vertical back up pad 54, horizontal supporting plate 55 are connected composition end support structure 5;
2) be connected in aggregates by horizontal supporting plate 55 with the ring flange 31 usefulness bolts of the upper and lower segmentation of column 3 end support structure 5, with this integral hoisting to trailer 4 belows, and the top segmentation of a column 3 connected trailer 4 one side bottoms by ring flange, opposite side is finished with identical step.
3) submarine pipeline model 6 is lifted to trailer 4 belows, its two ends and end portion supports mechanism 5 are connected and fixed respectively, the data line that submarine pipeline model 6 two ends derive each segmentation intermediate hollow part of passing column 3 is then received on the trailer 4 on the data acquisition system (DAS) in the trailer pulpit always; In segmentation of the bottom of column 3 and trailer 4 afterbodys underwater camera equipment is installed simultaneously;
4) on the ground horizontal steel plate 21 and brandreth 22 are formed the false ends 2 of simulation, will simulate the vacation ends 2 integral hoisting, be connected with the bottom segmentation of two heel posts 3 to trailer 4 times; Mo Ni true seabed situation is as required adjusted the shape of the protruding brandreth 22 at the false end 2 of simulation, it is contacted naturally with submarine pipeline model 6, and superscribe protection rubber in its place that contacts with submarine pipeline model 6;
5) real-time analysis software and image processing software are installed on the computing machine in the trailer pulpit, to derive the data line that comes from submarine pipeline model 6 two ends then and be connected on the computer, and simultaneously the surveying instrument in the trailer pulpit be derived the power lead that comes and connect with the mains;
6) the post debugging device is finished in integral installation, determines the good simulation position at the false end 2; After debugging is finished, just can test according to concrete operating mode and test specification starting characteristics test device.
The various embodiments described above only are used to illustrate the utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (8)
1. the equal uniform flow vortex-induced vibration of submarine pipeline simulation test device, it is characterized in that: it comprises the false end of the simulation that is arranged in the towing basin, slide respectively and be equipped with column in the two ends at the false end of described simulation, the common trailer that is arranged on described towing basin top that connects in the top of two described columns, the middle and lower part of two described columns is provided with an end support structure respectively, and two described end support structure connect the corresponding axle head of a submarine pipeline model respectively; Be provided with measuring and analysis system in the described towing basin.
2. the equal uniform flow vortex-induced vibration of a kind of submarine pipeline as claimed in claim 1 simulation test device; it is characterized in that: the false end of described simulation, comprise horizontal steel plate; the middle part of described horizontal steel plate is provided with a protruding brandreth; on the described protruding brandreth; with the contact position parcel protection rubber of described submarine pipeline model, two described columns slide and are located on the described horizontal steel plate.
3. the equal uniform flow vortex-induced vibration of a kind of submarine pipeline as claimed in claim 1 simulation test device, it is characterized in that: each described column includes upper and lower two sections, each section be shaped as the hollow cylinder tubular, connect by ring flange between upper and lower two sections of described column.
4. the equal uniform flow vortex-induced vibration of a kind of submarine pipeline as claimed in claim 2 simulation test device, it is characterized in that: each described column includes upper and lower two sections, each section be shaped as the hollow cylinder tubular, connect by ring flange between upper and lower two sections of described column.
5. as claim 1 or the equal uniform flow vortex-induced vibration of 2 or 3 or 4 described a kind of submarine pipelines simulation test device, it is characterized in that: each described end support structure comprises the coupling sleeve that is arranged on described submarine pipeline model respective end, described coupling sleeve connects the submarine pipeline fixture splice by universal joint, described submarine pipeline fixture splice is fixed on the vertical back up pad, described vertical back up pad is welded on the horizontal supporting plate bottom, and described horizontal supporting plate is arranged on the described column.
6. the equal uniform flow vortex-induced vibration of a kind of submarine pipeline as claimed in claim 5 simulation test device, it is characterized in that: described horizontal supporting plate is provided with some bolts hole, each described bolt hole cooperates with the bolt hole of the described ring flange of the upper and lower segmentation junction of described column, by bolt the upper and lower segmentation of described horizontal supporting plate and described column is fastenedly connected.
7. as claim 1 or 2 or 3 or the 4 or 6 equal uniform flow vortex-induced vibration of described a kind of submarine pipeline simulation test devices, it is characterized in that: described measuring and analysis system comprises the underwater camera equipment that is arranged on described column bottom and described trailer afterbody; Axially evenly be arranged on the some grating strain transducers on the described submarine pipeline model; Be arranged on fiber data acquisition system, video recording acquisition system, wireless signal receiver and computer equipment in the trailer pulpit of described towing basin.
8. the equal uniform flow vortex-induced vibration of a kind of submarine pipeline as claimed in claim 5 simulation test device, it is characterized in that: described measuring and analysis system comprises the underwater camera equipment that is arranged on described column bottom and described trailer afterbody; Axially evenly be arranged on the some grating strain transducers on the described submarine pipeline model; Be arranged on fiber data acquisition system, video recording acquisition system, wireless signal receiver and computer equipment in the trailer pulpit of described towing basin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200076939U CN202033164U (en) | 2011-01-12 | 2011-01-12 | Testing device capable of simulating uniform-flow vortex-induced vibration of submarine pipeline |
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| CN2011200076939U CN202033164U (en) | 2011-01-12 | 2011-01-12 | Testing device capable of simulating uniform-flow vortex-induced vibration of submarine pipeline |
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| CN202033164U true CN202033164U (en) | 2011-11-09 |
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| CN102147321A (en) * | 2011-01-12 | 2011-08-10 | 中国海洋石油总公司 | Uniform flow vortex-induced vibration simulation tester for seabed pipeline |
| CN103954429B (en) * | 2014-04-02 | 2016-06-08 | 西北工业大学 | A kind of imitative lotus leaf bar peripheral flow drag reduction test model |
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| CN103954418A (en) * | 2014-04-22 | 2014-07-30 | 太原理工大学 | System for testing vortex-induced vibration traveling wave of structure with large length to diameter ratio |
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| CN104990681A (en) * | 2015-07-09 | 2015-10-21 | 天津大学 | Multi-span supporting device for vortex-induced vibration test of multi-span submarine pipeline |
| CN105157941A (en) * | 2015-07-09 | 2015-12-16 | 天津大学 | Inclination angle uniform inflow condition deep sea tension type standpipe beam vortex induced vibration test device |
| CN104990681B (en) * | 2015-07-09 | 2018-02-23 | 天津大学 | A kind of multispan support meanss for the experiment of multispan submarine pipeline vortex-induced vibration |
| CN105157941B (en) * | 2015-07-09 | 2017-12-15 | 天津大学 | The experimental rig of inclination angle uniform incoming flow condition deep-sea tensioned risers beam vortex-induced vibration |
| CN105203281A (en) * | 2015-09-18 | 2015-12-30 | 天津大学 | Testing device for local flow rate increasing dip-angle incoming flow multi-span seabed pipeline vortex-induced vibration |
| CN105203281B (en) * | 2015-09-18 | 2018-03-23 | 天津大学 | Local velocity increases inclination angle incoming multispan submarine pipeline vortex-induced vibration experimental rig |
| CN105318964A (en) * | 2015-10-23 | 2016-02-10 | 中国海洋石油总公司 | Submarine pipeline suspended span vortex-induced vibration active monitoring system and method thereof |
| CN105277335A (en) * | 2015-10-26 | 2016-01-27 | 中国科学院力学研究所 | Liquid-gas interaction vibration experiment device |
| CN105277335B (en) * | 2015-10-26 | 2017-12-12 | 中国科学院力学研究所 | The vibration testing device of liquid atmosphere interaction |
| CN105971585A (en) * | 2016-05-26 | 2016-09-28 | 山东祺龙海洋石油钢管股份有限公司 | Shaking test device for simulating water-resisting guide pipe under drilling sea condition |
| CN106644332B (en) * | 2016-07-07 | 2019-04-23 | 哈尔滨工程大学 | It flows sharp whirlpool and puts frequency experimental provision |
| CN106644332A (en) * | 2016-07-07 | 2017-05-10 | 哈尔滨工程大学 | Flow-induced vortex amplification frequency experiment apparatus |
| CN106679791A (en) * | 2016-12-15 | 2017-05-17 | 天津大学 | Simulation device for vortex-induced vibration of submarine pipeline and experimental method |
| CN106679791B (en) * | 2016-12-15 | 2019-08-30 | 天津大学 | Submarine pipeline vortex-induced vibration simulator and experimental method |
| CN107870077A (en) * | 2017-06-19 | 2018-04-03 | 中国水利水电科学研究院 | Vertical vortex experimental rig |
| CN107367370A (en) * | 2017-07-05 | 2017-11-21 | 大连理工大学 | Floating gate Logistics automatic system device and multiple degrees of freedom method of work |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Patentee after: Shanghai Jiao Tong University Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center Patentee before: Shanghai Jiao Tong University |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Shanghai Jiao Tong University Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation Co-patentee before: Shanghai Jiao Tong University |
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Granted publication date: 20111109 |
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