CN202042120U - Pipe section model for deep-water benthonic pipeline paving test - Google Patents
Pipe section model for deep-water benthonic pipeline paving test Download PDFInfo
- Publication number
- CN202042120U CN202042120U CN2010207001657U CN201020700165U CN202042120U CN 202042120 U CN202042120 U CN 202042120U CN 2010207001657 U CN2010207001657 U CN 2010207001657U CN 201020700165 U CN201020700165 U CN 201020700165U CN 202042120 U CN202042120 U CN 202042120U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- cone
- ballast
- water
- lower cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Pipeline Systems (AREA)
Abstract
The utility model provides a pipe section model for a deep-water benthonic pipeline paving test, which comprises a barrel, an upper cone, a lower cone, a spring, a connecting rod and a ballast. The upper cone is connected with the upper end of the barrel; the lower cone is connected with the lower end of the barrel; the connecting rod is positioned in the barrel; one end of the connecting rod is in threaded connection with the spring; the other end of the connecting rod passes through the ballast and then is inserted into the lower cone; one end of the spring is in threaded connection with the connecting rod; the other end of the spring penetrates through the top end of the upper cone; the ballast is sleeved on the connecting rod, and is further fixed in the lower cone through a nut; and water is filled in the barrel. The pipe section models for the deep-water benthonic pipeline paving test are connected mutually to form a cluster-shaped discrete benthonic pipeline model, and are used for simulating an initial paving process and a final paving process of a deep-water benthonic pipeline, carrying out the research on the internal stress of the benthonic pipeline and the influence of a pipeline system on the hydrodynamic force of a pipe paving ship, and completing the simulation of total pipeline quality, water displacement weight and pipeline rigidity before the deep-water benthonic pipeline is paved so as to supply evidences for an actual pipe paving project.
Description
Technical field
The utility model relates to the marine oil engineering equipment, relates in particular to a kind of deep water undersea pipe-laying test pipeline section model that is used for the deep water undersea pipe-laying.
Background technology
Submarine pipeline S type paving system comprises pipelaying barge, rubber tube expander, stinger and pipeline etc. at present.When carrying out the deep-sea laying work, system's each several part is except being subjected to the static(al) effect, because the motion of boats and ships under wave action, also can in system, produce considerable dynamic loading, these static(al)s and power all will be in pipelaying barge, rubber tube expander, stinger and pipeline with different forms and magnitude variations and exist, and can influence each other.Therefore, submarine pipeline needs to study before laying and verifies that pipeline produces the additional dynamic stress influence and distribution, peak value and the characteristic of this dynamic stress to water surface pipelaying barge in influence and the water surface pipelaying barge system heave acceleration movement that the exercise performance on the wave produces in pipeline configuration.Because the complicacy of marine environment to the performance study of offshore engineering equipment, except theoretical analysis, also needs to come by experimental study the accuracy and the accuracy of proof theory model usually.
In the test before undersea pipe-laying, need make pipelaying barge according to certain reduced scale, stinger and pipeline model, because motion and the power performance of pipe laying system in wave will mainly be subjected to this three parts quality and coupled effect, test model as shown in Figure 1, this pipelaying barge 1 is placed on the experimental tank water surface, there are two hinge holes the rear end of stinger 2, be connected with the stinger support 21 of hull by pivot pin, the upper end of pipeline model 3 is connected on the pulling force sensor 31, and pulling force sensor 31 is fixed on the lower end of stinger 2 by seizing wire 32.Experimental tank simulation different conditions wave motion, the data of the power of pulling force sensor 31 inductions change, thereby measure the influence parameter of the motion of pipe laying system in wave to pipeline and boats and ships.
Along with developing rapidly of ocean engineering technology, marine petroleum development is constantly advanced to deep water, the Independence project depth of water that the present Gulfian is being developed has reached 2410 meters, and the northern deep water hydrocarbon in China South Sea district depth of water is the darkest in 3000 meters, for the deep water undersea pipe-laying, if by the scaling factor of the similarity theory of general oceanographic engineering 1: 40～1: 60, making pipeline model tests, there are two subject matters, the one, the test depth of water is restricted, the wind that generally is used at present ocean engineering experiment, wave, about 4～10 meters of the flowing water pond test degree of depth, 40 meters of domestic existing swimmer's pool depth capacitys, can not satisfy up to 3000 meters simulation requirements, then can influence test accuracy as improving scaling factor; The 2nd, pipeline geometric scale and weight simulation restriction, the 12 inch extra large pipes commonly used with oceanographic engineering are example, the actual diameter of pipeline is 5.4 millimeters as simulate then according to 1: 60 scaling factor, causes the difficulty of modelling.
The utility model content
Fundamental purpose of the present utility model is to overcome the above-mentioned shortcoming that existing product exists, use the pipeline section model and provide a kind of deep water undersea pipe-laying to test, it is by last lower cone, spring, cylindrical shell, connecting link, nut and ballast constitute, again this deep water undersea pipe-laying test is interconnected with the pipeline section model, constitute the discrete type submarine pipeline model of string shape, stop process of deployment in order to simulation deep water submarine pipeline initial sum, carry out the hydrodynamic force influence research of submarine pipeline internal stress and piping system to pipelaying barge, it is preceding to the pipeline gross mass to finish the deep water undersea pipe-laying, arrange the simulation of quality and pipeline rigidity, for actual piping work provides foundation.
The purpose of this utility model is realized by following technical scheme.
The pipeline section model is used in the test of the utility model deep water undersea pipe-laying, it is characterized in that, comprises cylindrical shell 6, upper cone 4, lower cone 10, spring 5, connecting link 7 and ballast 9; This upper cone 4 is connected with cylindrical shell 6 upper ends, and lower cone 10 is connected with cylindrical shell 6 lower ends; This connecting link 7 is positioned at cylindrical shell 6 inside, and one end and spring 5 are spirally connected, and the other end passes ballast 9 backs and inserts in the lower cone 10, these spring 5 one ends and connecting link 7 are spirally connected, the other end passes upper cone 4 tops, and ballast 9 is set on the connecting link 7, and is fixed in the lower cone 10 by nut 8; Concentrate water 11 in the cylindrical shell 6 on.
Aforesaid deep water undersea pipe-laying test pipeline section model, wherein upper cone 4 centers are provided with perforation 41, and the bottom has accommodation space 42, and its bottom outside is provided with external thread 43 and is connected with cylindrical shell 6 upper end internal threads; Described lower cone 10 tops are provided with screw 101, and the bottom has accommodation space 102 and is provided with perforation 103, and its bottom outside is provided with external thread 104 and is connected with cylindrical shell 6 lower end internal threads; This upper cone 4 is identical symmetrical cone with lower cone 10.
Aforesaid deep water undersea pipe-laying test pipeline section model, wherein connecting link 7 one ends are provided with external thread and pass nut 8 successively and the perforation 103 that lower cones 10 are arranged in accommodation space 102 is inserted in ballast 9 back, and the other end is provided with internal thread and spring 5 external thread bolt connections.
Aforesaid deep water undersea pipe-laying test pipeline section model, its medi-spring 5 two ends are equipped with external thread, one end external thread is connected with the connecting link internal thread, and the other end passes the back by upper cone 4 central hole 41 and links to each other with the internal thread of another deep water undersea pipe-laying test with pipeline section model lower cone top screw 101.
Aforesaid deep water undersea pipe-laying test pipeline section model, wherein ballast 9 is provided with endoporus 91, this ballast 9 is set in connecting link 7 by endoporus 91 and is positioned at an end of lower cone 10 and is positioned at lower cone 10 bottom accommodation spaces 102, and by the nut 8 that is set on the connecting link 7 connecting link 7 and ballast 9 is fixed with lower cone 10.
Aforesaid deep water undersea pipe-laying test pipeline section model, the water of concentrating in its middle cylinder body 6 11 is fresh water.
The utility model deep water undersea pipe-laying test beneficial effect of pipeline section model, after using this pipeline section model, can realize the model test requirement that deep water sea pipe is laid fully, and can reflect the pipeline in the process of deployment and the interaction of hull, for actual pipe laying work provides reliable basis.
Description of drawings:
Fig. 1 is existing undersea pipe-laying test unit synoptic diagram.
Fig. 2 is the utility model deep water undersea pipe-laying test pipeline section model structure synoptic diagram.
Major label description in figure: centrum external thread, 5 springs, 6 cylindrical shells, 7 connecting links, 8 nuts, 9 ballasts, 91 ballast endoporus, 10 lower cones, 101 hypocentrum screws, 102 hypocentrum accommodation spaces, the perforation of 103 hypocentrums, 104 hypocentrum external threads, 11 water on the centrum accommodation space, 43 in the centrum perforation on 1 pipelaying barge, 2 stingers, 21 stinger supports, 3 pipelines, 31 pulling force sensors, 32 seizing wires, 4 upper cones, 41,42.
Embodiment
As shown in Figure 2, the pipeline section model is used in the test of the utility model deep water undersea pipe-laying, and it comprises cylindrical shell 6, upper cone 4, lower cone 10, spring 5, connecting link 7 and ballast 9; This upper cone 4 is connected with cylindrical shell 6 upper ends, and lower cone 10 is connected with cylindrical shell 6 lower ends; This connecting link 7 is positioned at cylindrical shell 6 inside, and one end and spring 5 are spirally connected, and the other end passes ballast 9 backs and inserts in the lower cone 10, these spring 5 one ends and connecting link 7 are spirally connected, the other end passes upper cone 4 tops, and ballast 9 is set on the connecting link 7, and is fixed in the lower cone 10 by nut 8; Concentrate water 11 in the cylindrical shell 6 on.
As shown in Figure 2, the pipeline section model is used in the test of the utility model deep water undersea pipe-laying, and wherein, these upper cone 4 centers are provided with perforation 41, and the bottom has accommodation space 42, and its bottom outside is provided with external thread 43 and is connected with cylindrical shell 6 upper end internal threads; Described lower cone 10 tops are provided with screw 101, and the bottom has accommodation space 102 and is provided with perforation 103, and its bottom outside is provided with external thread 104 and is connected with cylindrical shell 6 lower end internal threads; This upper cone 4 is identical symmetrical cone with lower cone 10; These connecting link 7 one ends are provided with external thread and pass nut 8 successively and the perforation 103 that lower cones 10 are arranged in accommodation space 102 is inserted in ballast 9 back, and the other end is provided with internal thread and spring 5 external thread bolt connections; These spring 5 two ends are equipped with external thread, and an end external thread is connected with the connecting link internal thread, and the other end passes the back by upper cone 4 central hole 41 and links to each other with the internal thread of another deep water undersea pipe-laying test with pipeline section model lower cone top screw 101; This ballast 9 is provided with endoporus 91, and this ballast 9 is set in connecting link 7 by endoporus 91 and is positioned at an end of lower cone 10 and is positioned at lower cone 10 bottom accommodation spaces 102, and by the nut 8 that is set on the connecting link 7 connecting link 7 and ballast 9 is fixed with lower cone 10; The water of concentrating in this cylindrical shell 6 11 is fresh water.
Embodiment:
Make test and use the pipeline section model: the long 102mm of cylindrical shell, external diameter 40.4mm, volume are 243.513cm
3, quality is 155.8g; The long 45.5mm of last centrum, volume are 20.109cm
3, quality is 155.8g; The long 45.5mm of hypocentrum, volume are 22.8986cm
3, quality is 155.8g; Perfusion fresh water volume is 91.726cm
3, quality is 91.7g; The long 69mm of connecting link, external diameter 5mm, volume are 1.63cm
3, quality is 4.56g; The spring steel diameter is 2mm, and quality is 10.8g.
Analogue formation contracts than being 1: 49, and model quality is 571.6 grams, and the displacement of volume of model is 0.180dm
3, the rigidity of model spring is 1.21387Kg/mm, just corresponding to the quality 6.725 * 10 of 250m, outer diameter tube 0.3239m, internal diameter of the pipeline, the actual pipeline of 0.2447m
4Kg, displacement of volume 20.5888m
3Rigidity 2.9145 * 10 with pipeline
7N/m promptly simulates the parameter of this pipe pipeline section of 250m.
After 12 above-mentioned models are connected in series, its model quality, displacement of volume, the rigidity of spring contracts more identical than the parameter that is 1: 49 with 3000 meters actual pipelines.
During test, under the quiescent conditions at first dead in water condition, record the static pulling force of discrete pipeline model by pulling force sensor; Select corresponding wave parameter according to sea situation then, under the effect of wave, the discrete pipeline model that seizing wire connects with stinger and pipelaying barge with wave motion, produce acceleration, so each pipeline section model generation acceleration force, and cause the flexible of spring, its acceleration force passes to the hypocentrum of a last pipeline section model by being threaded of spring upper end, pass to seizing wire successively, until passing to pulling force sensor, the changing value of the real-time monitoring record pulling force of sensor; Relatively draw test parameterss such as peak value and stress characteristics at last by sequential operation.
Theoretical numerical value computation model and physical model are combined the test of carrying out, and are a kind of new mixing model test methods that the modern marine engineering test proposes.The test of the utility model deep water undersea pipe-laying is adopted pipeline discrete model combined test method with the pipeline section model, deep water long pipeline with the physical simulation difficulty, block into plurality of sections, every section replaces testing with equivalent physical model, from the dynamics angle, simulate the displacement mass of this pipeline section, weight and structural elasticity under water, the quality and the elasticity that substitute each segment pipe with lumped mass and spring are set up model.
The utility model deep water undersea pipe-laying test advantage of pipeline section model:
1,, can shorten the length of simulation pipeline greatly after adopting this pipeline section model, thereby reduce the restriction of the experimental tank depth of water because according to the length of the actual (tube) length pipeline ratio that contracts, its length is very long, needs the experimental tank of the super large degree of depth.Since actual pipeline contract than process in, the physical dimension and the wall thickness of the pipeline of model are all very little, are difficult to processing and fabricating, simultaneously elastic modulus with contract than variation change, be difficult to find the material of corresponding elastic modulus, make simulation test be difficult to realize, adopt this method to make test feasible thus.Can use the discrete type pipeline model tests such as hydrodynamic force of being correlated with, make full use of existing experimental tank condition, use relatively large scaling factor, thereby reduce the difficulty in the test pipe modelling, warranty test measuring accuracy.
2, because big degree of depth pipeline simulation test, if adopt the ratio that contracts greatly, test parameters can distortion, if adopt the ratio that contracts for a short time, needs the pond of the big degree of depth, adopts this method can realize simulation to deep water undersea pipe-laying part process thus; Because the model of this method can be simulated quality, displacement of volume and the elastic modulus of actual pipeline fully, can effectively simulate the structural mechanics characteristic of deep water long pipeline thus.
3, have simple in structure, easy to connect, be convenient to transport and install and fixing effect.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. the pipeline section model is used in a deep water undersea pipe-laying test, it is characterized in that, comprises cylindrical shell (6), upper cone (4), lower cone (10), spring (5), connecting link (7) and ballast (9); This upper cone (4) is connected with cylindrical shell (6) upper end, and lower cone (10) is connected with cylindrical shell (6) lower end; This connecting link (7) is positioned at cylindrical shell (6) inside, one end and spring (5) are spirally connected, the other end passes ballast (9) back and inserts in the lower cone (10), these spring (5) one ends and connecting link (7) are spirally connected, the other end passes upper cone (4) top, ballast (9) is set on the connecting link (7), and is fixed in the lower cone (10) by nut (8); Concentrate water (11) in the cylindrical shell (6) on.
2. deep water undersea pipe-laying test pipeline section model according to claim 1, it is characterized in that, described upper cone (4) center is provided with perforation (41), and the bottom has accommodation space (42), and its bottom outside is provided with external thread (43) and is connected with cylindrical shell (6) upper end internal thread; Described lower cone (10) top is provided with screw (101), and the bottom has accommodation space (102) and is provided with perforation (103), and its bottom outside is provided with external thread (104) and is connected with cylindrical shell (6) lower end internal thread; This upper cone (4) is identical symmetrical cone with lower cone (10).
3. deep water undersea pipe-laying test pipeline section model according to claim 1, it is characterized in that, described connecting link (7) one ends are provided with external thread and pass nut (8) successively and the perforation (103) that lower cone (10) is arranged in accommodation space (102) is inserted in ballast (9) back, and the other end is provided with internal thread and spring (5) external thread bolt connection.
4. deep water undersea pipe-laying test pipeline section model according to claim 1, it is characterized in that, described spring (5) two ends are equipped with external thread, one end external thread is connected with the connecting link internal thread, and the other end passes the back by upper cone (4) central hole (41) and links to each other with the internal thread of another deep water undersea pipe-laying test with pipeline section model lower cone top screw (101).
5. deep water undersea pipe-laying test pipeline section model according to claim 1, it is characterized in that, described ballast (9) is provided with endoporus (91), this ballast (9) is set in connecting link (7) by endoporus (91) and is positioned at an end of lower cone (10) and is positioned at lower cone (10) bottom accommodation space (102), and by the nut (8) that is set on the connecting link (7) connecting link (7) and ballast (9) is fixed with lower cone (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010207001657U CN202042120U (en) | 2010-12-30 | 2010-12-30 | Pipe section model for deep-water benthonic pipeline paving test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010207001657U CN202042120U (en) | 2010-12-30 | 2010-12-30 | Pipe section model for deep-water benthonic pipeline paving test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042120U true CN202042120U (en) | 2011-11-16 |
Family
ID=44969557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010207001657U Expired - Lifetime CN202042120U (en) | 2010-12-30 | 2010-12-30 | Pipe section model for deep-water benthonic pipeline paving test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104899391A (en) * | 2015-06-18 | 2015-09-09 | 哈尔滨工程大学 | J-shaped pipe laying work model modeling simulation method |
| CN107727358A (en) * | 2017-10-27 | 2018-02-23 | 天津大学 | A kind of submerged pipeline moves simulation experiment system |
-
2010
- 2010-12-30 CN CN2010207001657U patent/CN202042120U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104899391A (en) * | 2015-06-18 | 2015-09-09 | 哈尔滨工程大学 | J-shaped pipe laying work model modeling simulation method |
| CN104899391B (en) * | 2015-06-18 | 2018-01-19 | 哈尔滨工程大学 | A kind of J-type pipelaying work model modeling emulation mode |
| CN107727358A (en) * | 2017-10-27 | 2018-02-23 | 天津大学 | A kind of submerged pipeline moves simulation experiment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11255745B2 (en) | Test device for simulating longitudinal-lateral-torsional coupled nonlinear vibration of drill string of deepwater riserless drilling and method therefor | |
| Xu et al. | Analysis of hydrodynamic behavior of a submersible net cage and mooring system in waves and current | |
| Kim et al. | Benchmark study on motions and loads of a 6750-TEU containership | |
| Amaechi et al. | Mathematical modelling of bonded marine hoses for single point mooring (SPM) systems, with Catenary Anchor Leg Mooring (CALM) buoy application—A review | |
| CN104089810B (en) | Difference buries thin-walled pipeline thermal buckling assay device under condition underground | |
| Zhao et al. | Numerical analysis of the elastic response of a floating collar in waves | |
| CN105424484A (en) | Test device for of complex loading and united loading buckling of submarine pipeline | |
| CN202042120U (en) | Pipe section model for deep-water benthonic pipeline paving test | |
| Liu et al. | Experimental study of the behaviour of a circular gravity cage in linear waves | |
| CN202599635U (en) | System for applying internal flow and top tension in marine riser vortex-induced vibration test | |
| CN110186645B (en) | Test device for testing load of buoy region of deepwater anti-bench drilling marine riser | |
| CN104359700B (en) | FPSO (Floating Production Storage and Offloading System) crude oil transportation system coupling property testing method | |
| Huang et al. | Study on the influence of mesh grouping on numerical simulation results of fish cages | |
| CN206114923U (en) | Ocean electromagnetism acquisition station fixed knot constructs | |
| Høiland | Dynamic analysis of a vessel-shaped fish farm for open sea | |
| Wang et al. | A singular perturbation method for parametric investigation on J-lay installation of deepwater pipelines | |
| CN203657959U (en) | Measuring system of internal wave horizontal force | |
| CN110489918B (en) | Method for processing elastic displacement of ultra-large floating body in anchoring analysis | |
| He et al. | Dieless bulging and nonlinear buckling of longan-shaped pressure hull | |
| Pham et al. | Composite riser design and development–A review | |
| Huang et al. | Effects of Aspect Ratio on the Hydrodynamic Performance of Circular Cambered Otter Board | |
| CN112084663B (en) | Flexible pipeline test system based on complex marine environment | |
| CN204594681U (en) | Outer defeated floating drum damping characteristic development test device | |
| Lemoe¨ l et al. | Design of the world’s 1st gravity actuated pipe (GAP) for Murphy’s Kikeh deepwater development, east Malaysia | |
| Gjuka | Dynamic Analysis of Feed Pipes for Fish Farming in Open Sea |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Shanghai Jiaotong University Haike (Group) Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: Shanghai Jiaotong University Haike (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |