CN102175437A - Buckling test device for deepwater submarine conduit - Google Patents
Buckling test device for deepwater submarine conduit Download PDFInfo
- Publication number
- CN102175437A CN102175437A CN 201110008538 CN201110008538A CN102175437A CN 102175437 A CN102175437 A CN 102175437A CN 201110008538 CN201110008538 CN 201110008538 CN 201110008538 A CN201110008538 A CN 201110008538A CN 102175437 A CN102175437 A CN 102175437A
- Authority
- CN
- China
- Prior art keywords
- cabin
- hatchcover
- tail
- flange
- pipeline
- Prior art date
Links
- 239000003921 oils Substances 0.000 claims abstract description 20
- 239000011901 water Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000463 materials Substances 0.000 claims description 6
- 240000006918 Orchis Species 0.000 claims description 4
- 230000000295 complement Effects 0.000 claims description 4
- 238000000034 methods Methods 0.000 claims description 4
- 238000004642 transportation engineering Methods 0.000 abstract description 2
- 230000000149 penetrating Effects 0.000 abstract 1
- 238000005516 engineering processes Methods 0.000 description 6
- 239000010410 layers Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 210000004279 Orbit Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 230000002706 hydrostatic Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixtures Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 210000003050 Axons Anatomy 0.000 description 1
- 241001669679 Eleotris Species 0.000 description 1
- 210000000887 Face Anatomy 0.000 description 1
- 210000003284 Horns Anatomy 0.000 description 1
- 206010044325 Trachoma Diseases 0.000 description 1
- 241000390203 Trachoma Species 0.000 description 1
- 241001584775 Tunga penetrans Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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Abstract
Description
Technical field
The invention belongs to deep-sea oil exploitation exploitation and transportation technology field, relate to a kind of submarine pipeline buckling test device.
Background technology
Especially the deep-marine-environment complicated condition is various for marine environment; submarine pipeline not only bears deadweight, outside hydrostatic force, internal pressure, medium temperature, prestress, pipeline accessories acting force, coverture and sea bed acting force, pigging is operated the functional load such as acting force that cause; and environmental load such as wind, wave, stream, ice (for standpipe or land line sections) and earthquake, also to face the challenge of accidental load such as extreme sea condition, ship collision, junk, liquefaction of sand, operating troubles.Losing efficacy very likely appears under the effect of external applied load in the pipeline that is layed in deepwater regions, as the surrender of pipeline suspended span section lost efficacy, because the fatigue failure of the high hydrostatic pressure of deepwater regions and pipeline flexing that axial force causes, conquassation, pipeline etc.In a single day subsea pipeline causes the generation of accidents such as damaged leakage, fracture because of a variety of causes, not only can national economy be brought about great losses, and marine environment is caused severe contamination.Therefore, need study the gordian techniquies such as architectural characteristic of deep water submarine pipeline.
At present, the buckling structure Study on Theory of deep underwater pipes still is in the exploratory stage, need be to deep water submarine pipeline flexing mechanism and condition research experiment, with checking and improvement Post-buckling Theory.And developed the multiple test unit that is used to study the pipeline flexing both at home and abroad at present, and perfect pipeline buckling test technology.As the bell pressure chamber of Norway, vertical placement be used to measure the flexural property of upper and lower surface under the effect of hydrostatic force difference of plate, but this highest pressure-bearing in pressure cabin has only 4Mpa; And 915 domestic pressure measuring cylinder active section yardstick diameter 1.5m, active section length 2.9m, this pressure measuring cylinder are vertical equally, and are applicable to than long pipe fittings and the pipeline buckling test device of considering multiple load combinations and also do not occur at home.
Summary of the invention
The object of the invention provides a kind ofly can simulate the deep-sea hyperbaric environment, carries out the device of pipeline buckling test under the multiple loading.Technical scheme of the present invention is as follows:
A kind of deep water submarine pipeline buckling test device, be used for the pipeline test specimen is carried out buckling test, this device comprises by main cabin body, the front end hatchcover, the pressure chamber that cabin body tail end hatchcover constitutes, front end hatchcover and tail end hatchcover are connected to the two ends of main cabin body, inboard at front end hatchcover and tail end hatchcover is provided with O-ring seal, on the front end hatchcover, be fixed with oil hydraulic system, the piston rod of oil hydraulic system passes the front end hatchcover and extends in the body of main cabin, the end of piston rod is provided with the piston rod flange, upper base surface at main cabin body is provided with guide rail, on guide rail, be placed with the coaster that is used for the transport pipeline test specimen, the two ends of pipeline test specimen are connected with the pipe end flange, described piston rod flange and pipe end flange are complementary, and the pipe end flange on the other end of pipeline test specimen is complementary with the top and bottom process orchid that is fixed on the body tail end hatchcover of cabin; Pressure chamber is provided with pressurization hole, pressure relief opening, water filling port, exhausr port, safety valve, pressure transducer opening and measurement circuit export mouth.
As preferred implementation, described main cabin body is tied up by multilayer steel plates and is made; Described main cabin body is selected the Q345R material for use, and front end hatchcover and tail end hatchcover are selected the 20MnMo material for use.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention is owing to adopt the advanced technology of tying up that high-strength steel sheet is tied up layer by layer, whenever tie up one deck and all will use x-ray inspection, 1 centimetre of every layer of steel plate thickness, total is tied up 24 layers of steel plate, 24 centimetres of gross thickness have guaranteed that the cabin body has extremely strong anti-pressure ability and high security performance.Apparatus of the present invention can be simulated the deep sea pressure environment of 4300 meters depth of waters (43Mpa), for the research of deep water submarine pipeline buckling test provides the pressure stable environment.2, the present invention is equipped with axial oil press on its front end hatchcover, this oil press can be connected with inner pipe fitting flange by the flange on its piston rod, and promote piston rod with oil pressure the pipeline test specimen of body inside, cabin is applied axial force, can load hydraulic pressure and axial force simultaneously to pipe fitting, the flexing of pipeline under the research load combinations operating mode.3, length overall of the present invention is 11.5 meters, 1.6 meters of diameters, and 1.2 meters of inside diameters, portion can hold 1: 1 true ratio test specimen and tests within it.4, jigger, high strength steel guide rail are equipped with in body inside in apparatus of the present invention cabin, are convenient to the conveying and the installation of pipeline test specimen.5, apparatus of the present invention top is provided with the proportion expression pressure regulator, and when hydraulic pressure in the cabin surpassed the safe pressure of setting, proportion expression pressure regulator automatic water jetting reached rapid release, safing purpose.
Description of drawings
Fig. 1 is an agent structure synoptic diagram of the present invention.
Fig. 2 be the A of Fig. 1 to cut-open view, i.e. front end hatchcover structural drawing.
Fig. 3 is that the A-A of Fig. 1 is to sectional view.
Fig. 4 is tail end hatchcover figure of the present invention.
Fig. 5 (a) and (b) be respectively rail-sides view and vertical view.
The main components of apparatus of the present invention is installed the accessory letter representation with numeral among the figure, and implication is as follows:
1---cabin body front end oil press
2,3,4---be used for oil press double-screw bolt, nut and the packing ring that connects is installed
5,60---the type packing ring
7---be used to install the big double-screw bolt of double end of fastening front end hatchcover, totally 16, every double-screw bolt diameter 120mm, length 1m
8---the hexagonal nut that the big double-screw bolt of front end hatchcover is equipped with
9---spheric washer
10---the front end hatchcover
11---the piston rod flange
12---pipeline test piece end flange
13---the double-screw bolt of connecting tube test specimen flange
14---pipe fitting flange attaching nut
15---main cabin body
16---coaster in the cabin
17---the top and bottom process orchid
18---the big double-screw bolt of tail end
19---the tail end big nut
20---the pipeline test specimen
21---be used to be connected and fixed the studs of tail end hatchcover
22---the supporting nut of tail end hatchcover double-screw bolt
23---the supporting packing ring of tail end nut
24---cabin body tail end hatchcover
25---guide rail in the cabin
26---orbit of guide rail
27---lead concrete slab sleeper
28---front end hatchcover hanger
A---safety-valve
B---exhausr port
C---water filling port
D---pressurization hole
E---pressure relief opening
F---pressure transducer opening
G1, g2, g3, g4, g5---measurement circuit export mouth
H---draining valve
I1, i2---cabin body tail end tensimeter
J---tail end vent valve
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, inside of the present invention can be simulated the deep-sea hyperbaric environment and be carried out the deep-sea specimen test, and the oil press of available outfit applies axial force to inner test piece, its bearing capacity 43Mpa, 11.5 meters of length overalls, 1.6 meters of diameters, horizontal installation is the internal pressure medium with water.The present invention includes main cabin body 15, front end hatchcover 10, cabin body tail end hatchcover 24, cabin body front end oil hydraulic system 1 several main parts, be used to simulate the deep sea pressure environment; Also comprise, can utilize body front end oil hydraulic system 1 pair of pipeline test specimen 20 of putting into the cabin body in cabin to apply axial pressure; In order to guarantee the leakproofness of cabin body, employing 7,8,9,18,19 parts such as bolt and nut such as grade connect and seal; Because the needs of pipeline buckling test, be equipped with flange 11,17 and be connected with pipeline test piece end flange 12 and fix, in the cabin in coaster 16, the cabin guide rail 25 be used to transport and support the pipeline test specimen; On the pipe fitting signal wire of each measuring point acquisition test data by g1, g2, g3, g4, g5 measurement circuit export mouth derive, in the cabin hydraulic pressure test circuit by the derivation of f pressure transducer opening; By c water filling port air in cabin body intracontour waterflooding, j tail end vent valve and b exhausr port are discharged the cabin; Pressurize in the cabin and test in d pressurization hole; After the off-test by the release of e pressure relief opening, the draining of h draining valve; Apparatus of the present invention also comprise a safety valve, and hydraulic pressure is unusual in the body of cabin, and when surpassing the maximum safe limit of setting, this valve automatic water jetting makes the inner rapid depressurization of apparatus of the present invention.
Apparatus of the present invention are made and assemble method:
Main cabin body 15 parts of apparatus of the present invention adopt multilayer to tie up the technology manufacturing, promptly on large-scale plate bending rolls, the steel plate of 1 cm thick is rolled into the cylindrical shell shape, steel plate is welded from level to level, every welding one deck all will be used x-ray inspection again, confirms not have scar, trachoma etc. to descend one deck welding again.Tie up 24 layers altogether, main cabin body gross thickness reaches 24 centimetres, and main cabin body front end is uncovered, be by the front end hatchcover sealing of independent making; Tail end is opened the hole of a 160mm diameter, so as when test the pipe fitting tail end fix, install, the tail end perforate is by tail end double-screw bolt 18, tail end nut 19 and 24 sealings of cabin body tail end hatchcover.Main cabin body is selected the Q345R material for use.
Front end hatchcover 10 adopts Forging Technology to make, and guarantees its intensity as shown in Figure 2, has opened 16 king-bolt perforates on the front end hatchcover.The front end hatchcover will often be opened with closed, selects the 20MnMo material for use.
The same Forging Technologies that adopt of cabin body tail end hatchcover 24, on open 16 stove bolt holes.
Because cabin body inner filling water pressurizes again, therefore to guarantee front and rear cover watertightness under high pressure, therefore each fastening one deck aluminum O-ring seal on front and rear cover.
At cabin body inner bottom part along cabin axon guide rail 25 in welding habitat, as shown in Figure 5, this guide rail comprises the parallel orbit of two long 8m, at axis of an orbit to a rectangle pillow of every interval 700mm welding plate.Track is by diameter 68mm, and the steel pipe of thickness 10mm is made, pillow plate thickness 16mm.Guide rail has enough length to transport the pipeline test specimen, and guide rail itself also has enough intensity to resist high hydraulic pressure and support tubes simultaneously.
After each parts of apparatus of the present invention are made and weld well, carry out the assembling of oil press, front and rear cover, each valve and support equipment and main cabin body, concrete grammar is as follows:
Use oil press connection double-screw bolt 2, nut 3, packing ring 4 that oil press 1 and front end hatchcover 10 are fastenedly connected; Main cabin body front end prolongs circumference and evenly has 16 internal thread perforates, is corresponding with size, the spacing of the big double-screw bolt 7 of front end, and with 16 big double-screw bolts of front end hatchcover double end is screwed into main cabin body front end again; The a safety valve is contained in body top, main cabin with joint flange, supporting vent valve is connected with b exhausr port on apparatus of the present invention, and waterflood pump is connected with the c water filling port, and force (forcing) pump is connected with the d pressurization hole of apparatus of the present invention, blowdown valve is connected with e, installs j tail end vent valve at cabin body tail end; The body tail end installs i1 in the cabin, i tensimeter 2; And pressure transducer p-wire, strain data transmission line passed f pressure transducer opening, g1-5 measurement circuit export mouth respectively; The big double-screw bolt 18 of cabin body tail end, tail end big nut 19 are placed the cabin external body, and at last with the front and rear cover closure, fastening front and rear cover nut is finished the assembling of apparatus of the present invention.
Apparatus of the present invention using method is as follows:
Apparatus of the present invention are mainly used in simulation deep-sea hyperbaric environment, and can apply axial force load to inner test piece and carry out deep water submarine pipeline buckling test.Can be divided into following a few step:
Aids such as the pipeline test specimen 20 usefulness overhead traveling cranes that 1, will handle well are sling, and have welded pipe fitting two ends at this moment end flange 12, and pipe fitting tail end flange is connected with top and bottom process orchid 17 on the big double-screw bolt of tail end and uses supporting double-screw bolt, nut fastening.Coaster in the cabin 16 is slided into cabin body front port, relend instruments such as helping overhead traveling crane pipe fitting tail end and big double-screw bolt junction are ridden in the cabin on the coaster.
2, pipeline test piece end flange 12 is connected with flange 11 on the oil press piston rod and uses supporting double-screw bolt, nut fastening, for guaranteeing two flange faces alignment, uses horn cupping the nut on the flange fastening successively.
3, the data acquisition line on the pipe fitting is derived by g1-5 measurement circuit export mouth.
4, by aids such as overhead traveling crane or trailers big double-screw bolt 18 integral body of front end hatchcover 10, pipeline test specimen 20, tail end that connect are sent in the cabin, at this moment, are asking in the cabin of pipe fitting coaster guide rail 25 in the cabin slowly to slide to cabin body afterbody.
5, to guarantee that the big double-screw bolt 18 of tail end passes cabin body tail end opening, 16 king-bolts that are installed in cabin body front end in advance also can pass the bolt hole of preceding hatchcover, after the big double-screw bolt of tail end passes, be contained in tail end big nut 19 on the big double-screw bolt of tail end and tighten, buckle cabin body tail end hatchcover 24 again, with supporting double-screw bolt 21,22,23, nut and packing ring are with cabin body tail end sealing.
6, spheric washer 9, big nut 8 once are enclosed within on the big double-screw bolt of front end hatchcover, and by instruments such as hydraulic elongator or hydraulic spanners big nut are tightened, and finish the fastening of front end hatchcover.
7, check whether each valve closes, open j tail end vent valve, b exhausr port then, subsequently by the water filling in the body of cabin of c water filling port, when observing j tail end vent valve and there are flowing out, tail end hatchcover internal gas is discharged, and closes this vent valve.When observing the b upper air vent and there are flowing out, whole cabin body air drains, and closes this exhausr port, closes water filling port again.Water filling is finished in the cabin.
8, open d pressurization mouth, to cabin body internal pressurization, owing to seal in the cabin, fetching water in the cabin by force (forcing) pump just makes the lasting rising of hydraulic pressure in the cabin, by external system acquisition test data, up to off-test.
9, after the off-test, open the e pressure relief opening hydraulic pressure in the cabin is reduced to 0, open the h draining valve draining of body bottom, cabin again, open cabin body tail end hatchcover and front end hatchcover successively, dismounting pipeline test specimen is finished single test.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100085383A CN102175437B (en) | 2011-01-14 | 2011-01-14 | Buckling test device for deepwater submarine conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100085383A CN102175437B (en) | 2011-01-14 | 2011-01-14 | Buckling test device for deepwater submarine conduit |
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| Publication Number | Publication Date |
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| CN102175437A true CN102175437A (en) | 2011-09-07 |
| CN102175437B CN102175437B (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100085383A CN102175437B (en) | 2011-01-14 | 2011-01-14 | Buckling test device for deepwater submarine conduit |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103903488A (en) * | 2014-04-10 | 2014-07-02 | 北京工业大学 | Axial seal hoop quick-opening horizontal type deep sea simulation cabin |
| CN103982719A (en) * | 2014-05-20 | 2014-08-13 | 天津大学 | Remote stud butt joint method |
| CN104316412A (en) * | 2014-09-19 | 2015-01-28 | 天津大学 | Multifunctional loading pipeline overall buckling experiment system |
| CN104316342A (en) * | 2014-11-18 | 2015-01-28 | 中国电子科技集团公司第三研究所 | Underwater comprehensive pressure testing device |
| CN105065778A (en) * | 2015-07-24 | 2015-11-18 | 天津大学 | Global buckling control method for anchoring disc type nakedly-laid submarine pipeline |
| CN105424484A (en) * | 2015-12-02 | 2016-03-23 | 天津大学 | Test device for of complex loading and united loading buckling of submarine pipeline |
| CN105806694A (en) * | 2016-01-29 | 2016-07-27 | 天津大学 | Combined loading testing device for complex loads of submarine pipelines |
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| CN108931331A (en) * | 2017-12-14 | 2018-12-04 | 杭州电子科技大学 | Rope tension measuring device |
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| RU2723634C1 (en) * | 2019-12-18 | 2020-06-18 | Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" | Device for performance of strength tests and tightness testing of deep-water technical facility intended for operation at depths of up to 11_5 km, external hydrostatic pressure |
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| CN101220887A (en) * | 2008-01-16 | 2008-07-16 | 天津大学 | Submerged pipeline air guide sleeve and its production and fixing method |
| CN101696751A (en) * | 2009-11-13 | 2010-04-21 | 天津大学 | Method for preventing buckle propagation and inhibiting vortex-induced vibration of benthal pipeline |
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| US5884519A (en) * | 1998-07-23 | 1999-03-23 | Theener; Ronald E. | Automatic hydraulic pin up system for a pipe bending apparatus |
| CN101220887A (en) * | 2008-01-16 | 2008-07-16 | 天津大学 | Submerged pipeline air guide sleeve and its production and fixing method |
| CN101696751A (en) * | 2009-11-13 | 2010-04-21 | 天津大学 | Method for preventing buckle propagation and inhibiting vortex-induced vibration of benthal pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903488B (en) * | 2014-04-10 | 2016-06-22 | 北京工业大学 | The clip of a kind of axial seal opens horizontal deep-sea boiler-plate soon |
| CN103903488A (en) * | 2014-04-10 | 2014-07-02 | 北京工业大学 | Axial seal hoop quick-opening horizontal type deep sea simulation cabin |
| CN103982719A (en) * | 2014-05-20 | 2014-08-13 | 天津大学 | Remote stud butt joint method |
| CN104316412A (en) * | 2014-09-19 | 2015-01-28 | 天津大学 | Multifunctional loading pipeline overall buckling experiment system |
| CN104316342A (en) * | 2014-11-18 | 2015-01-28 | 中国电子科技集团公司第三研究所 | Underwater comprehensive pressure testing device |
| CN105065778A (en) * | 2015-07-24 | 2015-11-18 | 天津大学 | Global buckling control method for anchoring disc type nakedly-laid submarine pipeline |
| CN106786254A (en) * | 2015-11-20 | 2017-05-31 | 天津市贝斯特防爆电器有限公司 | A kind of special explosion-proof wiring box of extra large cable |
| CN105424484A (en) * | 2015-12-02 | 2016-03-23 | 天津大学 | Test device for of complex loading and united loading buckling of submarine pipeline |
| CN105424484B (en) * | 2015-12-02 | 2018-05-04 | 天津大学 | Submarine pipeline complex load combination loading buckling test device |
| CN105806694A (en) * | 2016-01-29 | 2016-07-27 | 天津大学 | Combined loading testing device for complex loads of submarine pipelines |
| CN108007792A (en) * | 2017-11-15 | 2018-05-08 | 天津大学 | In-service deep seafloor buried pipeline earthquake-high pressure load combination loading test method |
| CN108007792B (en) * | 2017-11-15 | 2020-05-08 | 天津大学 | Earthquake-high pressure load combined loading test method for in-service deep sea seabed buried pipeline |
| CN108931331A (en) * | 2017-12-14 | 2018-12-04 | 杭州电子科技大学 | Rope tension measuring device |
| CN108731922A (en) * | 2018-02-28 | 2018-11-02 | 宝鸡石油机械有限责任公司 | A kind of marine riser pouring valve pilot system and its test method |
| CN109163855A (en) * | 2018-10-12 | 2019-01-08 | 中国石油天然气集团有限公司 | A kind of critical external compressive resistance performance test methods of pipelines in deep sea steel pipe |
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Free format text: CORRECT: INVENTOR; FROM: YU JIANXING BIAN XUEHANG YU YANG FU MINGYANG WANG YONGGENG LIN ZHENSHI WANG BAOJIAN MA JUN JING HAIYONG TO: LIANG JING YU JIANXING BIAN XUEHANG YU YANG YANG YUAN LI YAN SUN ZHENZHOU JING HAIYONG |
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