CN107179243A - Self-balancing type hydraulic pressure axle power combination loading experimental rig - Google Patents
Self-balancing type hydraulic pressure axle power combination loading experimental rig Download PDFInfo
- Publication number
- CN107179243A CN107179243A CN201710249846.2A CN201710249846A CN107179243A CN 107179243 A CN107179243 A CN 107179243A CN 201710249846 A CN201710249846 A CN 201710249846A CN 107179243 A CN107179243 A CN 107179243A
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- China
- Prior art keywords
- nacelle
- rear end
- testpieces
- threaded cylinder
- long bolt
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of self-balancing type hydraulic pressure axle power combination loading experimental rig, for carrying out load test to testpieces 20, including nacelle main body 9, it is fixedly arranged at the front end with the nacelle leading section 6 being tightly connected with drive end bearing bracket 1, rear end is fixed with nacelle rearward end 12, the two ends of testpieces are respectively arranged with front end flange and rear end flanges, and its front end is fixedly connected by front end flange with nacelle leading section 6, and rear end is connected by rear end flanges and bolt connecting device 18 with threaded cylinder 16；Bolt connecting device 18 includes threaded long bolt 24, the two ends of long bolt 24 are respectively fixed with front end flange and rear end flanges, front end flange is fixedly connected for long bolt 24 with the rear end of testpieces 20, end flanges are used for the connection of long bolt 24 and threaded cylinder 16 afterwards, and threaded cylinder 16 stretches out outside rear portion end cap 14 and is tightly connected between rear portion end cap 12.
Description
Technical field
The present invention relates to a kind of buckling test device of submarine pipeline hydraulic pressure-axle power combination loading, it is possible to achieve to reduced scale
It is that mechanical property of the submarine pipeline in the stage of laying and be on active service is carried than the simulation that submarine pipeline applies hydraulic pressure and axle power synergy
Supported for data, check the ultimate bearing capacity of the submarine pipeline in whole life cycle, be that submarine pipeline is combined in hydraulic pressure-axle power
Failure mechanism under binding mode provides reliable test simulation.
Background technology
World oil exploitation has had more than the history of 200 years, and oil is alive as one of main carriers of fossil energy
In occupation of consequence in terms of boundary's economy, political and military, energy security and guarantee are even more to turn into the world in this day and age
The primary strategic objective in various countries, the sustainable supply of the energy is the important leverage of various countries' sustainable economic development.Opened in fossil energy
Hair initial stage, land fossil energy experienced the exploitation of predation formula, to fossil within today of rapid economic development, worldwide
The demand of the energy is also increasing, and the exhaustion of this and land fossil energy forms insoluble contradiction, and then the whole world will
Sight invests ocean, and Marine oil and gas resource exploitation rapidly becomes the core industry that various countries are greatly developed, Marine oil and gas resource is opened
Send out and include Study on Long-team Strategy, the Chinese developing country as maximum in the world,《Made in China 2025》Planning
In clearly propose marine engineering equipment and high performance ship as ten big one of fields of giving priority to and to accelerate propulsion, implement ocean
Power's strategy, gives priority to the related high and new technology equipment of Marine oil and gas resource, ensures energy security.
Submarine pipeline has easy for installation, and pumped (conveying) medium is continuous, the features such as safety economy is reliable, as Marine oil and gas resource
" lifeline " of the important equipment of conveying, also referred to as marine oil and gas engineering, is responsible for important in Marine oil and gas resource exploitation
Mission.With the exploitation of Marine oil and gas resource, global major marine sites have formed huge submarine pipeline network.Due to ocean
Environment is complicated, submarine pipeline by a variety of load synergy, once submarine pipeline flexing fails, it will give marine environment band
Carry out the destruction that can not be made up, heavy losses are equally also brought along to economy, the submarine pipeline limit that then must be set up complete set is held
Force estimation standard is carried, its flexing failure mechanism is studied, it is necessary to implement substantial amounts of model test to enter on the basis of theoretical research
Row checking, ensures that submarine pipeline whole life cycle is safe and reliable.Before undersea pipe-laying, physical model test must
Indispensable, experimental rig be able to will be simulated to the true force environment of submarine pipeline, ensure the safe operation of submarine pipeline.It is existing
It is modern mainly to have in the weak point of the presence of deep sea pressure cabin design aspect both at home and abroad：
1. being only applicable to the experiment of submarine pipeline ultimate pressure capacity ability, the synergy of hydraulic pressure and other load is not considered,
Experimental rig has significant limitation to the stress of submarine pipeline in simulating ocean environment；
2. possessing the pressure chamber of complex load combination loading, the application of respective loads needs to be equipped with large hydraulic device, examination
Test process complicated, operation inconvenience is, it is necessary to which the cooperation of plurality of devices, serious forgiveness is low.
3. the data acquisition that axial load applies is inaccurate, corresponding numerical value is often the pulling force that hydraulic cylinder is provided, to liquid
The system friction of pressure device can not provide accurate numerical value, cause the test number of experimental rig inaccurate.
Existing experimental rig (such as number of patent application in the country：CN201110008538), submarine pipeline complex load is realized
Combination loading experiment, but the experimental rig needs to be equipped with large-scale hydraulic means to complete the loading of axial force, and axle power applies
The joint used is heavy, and charge and discharge operations difficulty is big, and the axial load signal numerical value exported is the size of hydraulic cylinder pulling force,
The frictional force that system is present can not accurately be estimated.
The content of the invention
It is an object of the invention to overcome the above-mentioned deficiency of prior art need not optional equipment large hydraulic there is provided one kind
Device is the experimental rig for the combination loading experiment that hydraulic pressure-axle power can be achieved.The present invention realizes examination using the hydraulic pressure in pressure chamber
The application of pipe fitting axle power is tested, the device of joint test part is reached self-balancing in cabin and out of my cabin, there is provided more accurate axial direction
Pulling force numerical value, so that simulated sea bottom pipe laying and the axial load that may be subject to during one's term of military service, complete submarine pipeline in this kind
The exploration of failure mode under operating mode, obtains its ultimate bearing capacity under this kind of operating mode, ensures submarine pipeline in whole Life Cycle
It is safe and reliable in phase.Technical scheme is as follows：
A kind of self-balancing type hydraulic pressure-axle power combination loading experimental rig, for carrying out load test to testpieces 20, including
Nacelle main body 9, it is fixedly arranged at the front end with the nacelle leading section 6 being tightly connected with drive end bearing bracket 1, and rear end is fixed with nacelle rearward end 12,
The two ends of testpieces are respectively arranged with front end flange and rear end flanges, and its front end is fixed by front end flange with nacelle leading section 6
Connection, rear end is connected by rear end flanges and bolt connecting device 18 with threaded cylinder 16；Bolt connecting device 18 includes band
The long bolt 24 of screw thread, the two ends of long bolt 24 are respectively fixed with front end flange and rear end flanges, and front end flange is used for long bolt
24 are fixedly connected with the rear end of testpieces 20, and rear end flanges are used for the connection of long bolt 24 and threaded cylinder 16, threaded post
Body 16 stretches out outside rear portion end cap 14 and is tightly connected between rear portion end cap 12；Rear portion end cap 14 is fixed on apart from nacelle rear end
There is the position of a segment distance in portion 12, and the front end of threaded cylinder 16 is fixedly connected with big nut；A described segment distance is used to hold
Receive the threaded cylinder 16 and big nut of stretching.
Draining valve 19, relief valve 21, water injection valve 11, the pressurization and of hole 7 should be additionally provided with the diverse location of nacelle main body 9
Watertight connector 10 for collecting test data.
There is provided a kind of buckling test of new hydraulic pressure-axle power combination loading for submarine pipeline experimental rig by the present invention
Device, has the following advantages that compared with domestic and international prior art：
(1) a kind of loading device of new test part axial tension is devised, the thrust provided by hydraulic pressure in pressure chamber,
Complete application to testpieces axial tension, it is not necessary to the hydraulic means of optional equipment axial tension again.
(2) calculating of axial tension value eliminates the interference of hydraulic means system friction, directly by hydraulic pressure value and sealing
The frictional force of circle show that data acquisition is more accurate, and obtained test data is more true and reliable.
Brief description of the drawings
Fig. 1 experimental rig complete layouts
Label declaration in figure：1-drive end bearing bracket；2-sealing ring；3-alignment pin；Open the cabin door gear for 4-front end；5-clip
Fastening assembly；6-nacelle leading section；7-pressurization hole；8-safety valve；9-nacelle main body；10-watertight connector；11-water filling
Valve；12-nacelle rearward end；13-fastening bolt；14-rear portion end cap；15-big nut；16-threaded cylinder；
17-saddle and saddle regulating block；18-bolt connecting device；19-draining valve；20-testpieces；21-pressure release
Valve
Fig. 2 bolt connecting devices 18
Label declaration in figure：22-nut；23-flange with holes；24-threaded long bolt
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is further described：
As shown in figure 1, self-balancing type hydraulic pressure-axle power combination loading experimental rig mainly includes：Drive end bearing bracket 1, sealing ring 2,
Alignment pin 3, open the cabin door gear 4 for front end, clip fastening assembly 5, nacelle leading section 6, hole 7 of pressurizeing, safety valve 8, nacelle main body 9,
Watertight connector 10, water injection valve 11, nacelle rearward end 12, fastening bolt 13, rear portion end cap 14, king-bolt 15, threaded cylinder 16,
Saddle and saddle regulating block 17, bolt connecting device 18, draining valve 19, testpieces 20, relief valve 21.Wherein bolt connecting device
18 as shown in Fig. 2 mainly include：Nut 22, flange 23 with holes, threaded long bolt 24.The experimental rig drive end bearing bracket 1 is adopted
Opened and closed with automatic liquid pressure device, clip fastening assembly 5 is connected using stud, work is tied up in main nacelle part using advanced
Skill ties up high-strength steel sheet layer by layer, often ties up one layer and uses x-ray inspection, it is ensured that nacelle have extremely strong anti-pressure ability and
Security performance, can bear the pressure of 7500 meters of depth of water.Testpieces 20 includes scaling factor pipe fitting and former and later two flanges, pipe fitting with
Flange is by being welded to connect, and the testpieces 20 assembled is connected with nacelle front end fixture by stud, after testpieces 20
End flanges are bolted device 18 and are attached with threaded cylinder 16.Threaded cylinder 16 is connected in part out of my cabin
There is big nut 15, big nut 15 can be by the screw thread shift position on cylinder 16, when testpieces 20, nacelle front end, bolt connect
Connection device 18 and threaded cylinder 16 enter nacelle after pressure completes connection out of my cabin by slide rail, finally install big nut 15.
It is effect that the superiority of the experimental rig, which is mainly reflected in the pressure conversion that bolt connecting device 18 provides hydraulic pressure,
Pulling force on testpieces 20, so as to reach the balance of itself.Draining valve 19 and relief valve 21 are first shut off, by water by water injection valve
11 injection nacelles, close steam vent and water injection valve 11 after water fills nacelle, open force (forcing) pump and water is injected into cabin by hole 7 of pressurizeing
Body, with the rising of hydraulic pressure in nacelle, hydraulic pressure produce pressure can act on bolt connecting device 18, promote right flange and
Threaded cylinder 16, when its stress balance, threaded cylinder 16 stops being displaced outwardly, and is thus bolted dress
Put 18 and the hydraulic pressure in cabin is converted into the pulling force acted on testpieces, realize the application of drag load, apply the size of pulling force
It can be calculated and obtained according to the relation between hydraulic pressure and the intrinsic frictional force of effective active area and sealing station.When to experiment
The pulling force that part applies is reached after predetermined pull, rotates the big nut 15 at nacelle rear positions so that big nut and rear portion end cap
14 are close to, so that when hydraulic pressure continues to rise, and big nut 15 and rear portion end cap 14 being capable of effective preventing belt threaded cylindricals 16
It is mobile, reach the purpose that value of thrust that holding is acted on testpieces is definite value.The test data of pipe fitting passes through nacelle in nacelle
Watertight connector 10 be transferred to Data collection and precessing system outside nacelle, while the design of safety valve 8 can ensure nacelle
When interior pressure is excessive, the water in nacelle is discharged, it is ensured that the security of experimental rig.After experiment is completed, relief valve 21 is opened
Pressure release is carried out, then steam vent is opened and draining valve 19 drains the water in nacelle, by the big nut 15 on threaded cylinder 16
Unload down, open hatch door and take out testpieces, viewing test part deformation result.
Claims (2)
1. a kind of self-balancing type hydraulic pressure-axle power combination loading experimental rig, for carrying out load test to testpieces (20), including
Nacelle main body (9), it is fixedly arranged at the front end with the nacelle leading section (6) being tightly connected with drive end bearing bracket (1), and rear end is fixed with nacelle rear end
Portion (12), the two ends of testpieces are respectively arranged with front end flange and rear end flanges, and its front end passes through front end flange and nacelle front end
Portion (6) is fixedly connected, and rear end is connected by rear end flanges and bolt connecting device (18) with threaded cylinder (16)；Bolt connection
Device (18) includes threaded long bolt (24), and the two ends of long bolt (24) are respectively fixed with front end flange and rear end flanges,
Front end flange is fixedly connected for long bolt (24) with the rear end of testpieces (20), and rear end flanges are used for long bolt (24) and with spiral shell
The connection of line cylinder (16), threaded cylinder (16) is stretched out outside rear portion end cap (14) and the company of sealing between rear portion end cap (12)
Connect；Rear portion end cap (14) is fixed on the position for having a segment distance apart from nacelle rearward end (12), the front end of threaded cylinder (16)
It is fixedly connected with big nut.A described segment distance is used to accommodate the threaded cylinder (16) and big nut stretched out.
2. experimental rig according to claim 1, it is characterised in that the diverse location of nacelle main body (9) is provided with row
Water valve (19), relief valve (21), water injection valve (11), pressurization hole (7) and the watertight connector (10) for collecting test data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249846.2A CN107179243A (en) | 2017-04-17 | 2017-04-17 | Self-balancing type hydraulic pressure axle power combination loading experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249846.2A CN107179243A (en) | 2017-04-17 | 2017-04-17 | Self-balancing type hydraulic pressure axle power combination loading experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107179243A true CN107179243A (en) | 2017-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710249846.2A Pending CN107179243A (en) | 2017-04-17 | 2017-04-17 | Self-balancing type hydraulic pressure axle power combination loading experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107179243A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108051313A (en) * | 2017-11-15 | 2018-05-18 | 天津大学 | In-service deep seafloor buried pipeline earthquake-high pressure load combination loading experimental rig |
| CN108801798A (en) * | 2018-06-15 | 2018-11-13 | 中国海洋石油集团有限公司 | A kind of hydraulic pressure provides the complex load experimental rig of axle power load |
| CN110196156A (en) * | 2019-03-12 | 2019-09-03 | 天津大学 | A kind of deep-sea pipeline Complicated Loads combination loading test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509583A (en) * | 2009-03-24 | 2009-08-19 | 江苏奎泽机械工业有限公司 | Ballast expansion joint |
| CN101793584A (en) * | 2009-12-04 | 2010-08-04 | 中冶建筑研究总院有限公司 | Large-diameter pipeline sealing property detection device and method |
| CN102607956A (en) * | 2012-03-04 | 2012-07-25 | 茂名重力石化机械制造有限公司 | Self-tightening sealing pressure test tool for high-pressure steel tube |
| CN202533325U (en) * | 2011-12-15 | 2012-11-14 | 中国石油天然气股份有限公司 | Composite load simulation test system for in-service pipeline |
| CN204594646U (en) * | 2015-04-14 | 2015-08-26 | 北京强度环境研究所 | Low temperature pressurising pipeline vibration test displacement loading system |
| CN105806694A (en) * | 2016-01-29 | 2016-07-27 | 天津大学 | Combined loading testing device for complex loads of submarine pipelines |
-
2017
- 2017-04-17 CN CN201710249846.2A patent/CN107179243A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509583A (en) * | 2009-03-24 | 2009-08-19 | 江苏奎泽机械工业有限公司 | Ballast expansion joint |
| CN101793584A (en) * | 2009-12-04 | 2010-08-04 | 中冶建筑研究总院有限公司 | Large-diameter pipeline sealing property detection device and method |
| CN202533325U (en) * | 2011-12-15 | 2012-11-14 | 中国石油天然气股份有限公司 | Composite load simulation test system for in-service pipeline |
| CN102607956A (en) * | 2012-03-04 | 2012-07-25 | 茂名重力石化机械制造有限公司 | Self-tightening sealing pressure test tool for high-pressure steel tube |
| CN204594646U (en) * | 2015-04-14 | 2015-08-26 | 北京强度环境研究所 | Low temperature pressurising pipeline vibration test displacement loading system |
| CN105806694A (en) * | 2016-01-29 | 2016-07-27 | 天津大学 | Combined loading testing device for complex loads of submarine pipelines |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108051313A (en) * | 2017-11-15 | 2018-05-18 | 天津大学 | In-service deep seafloor buried pipeline earthquake-high pressure load combination loading experimental rig |
| 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 |
| CN108801798A (en) * | 2018-06-15 | 2018-11-13 | 中国海洋石油集团有限公司 | A kind of hydraulic pressure provides the complex load experimental rig of axle power load |
| CN108801798B (en) * | 2018-06-15 | 2021-02-09 | 中国海洋石油集团有限公司 | Complicated load test device for providing axial force loading by water pressure |
| CN110196156A (en) * | 2019-03-12 | 2019-09-03 | 天津大学 | A kind of deep-sea pipeline Complicated Loads combination loading test method |
| CN110196156B (en) * | 2019-03-12 | 2024-03-22 | 天津大学 | Deep sea pipeline complex load combined loading test method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170919 |
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| RJ01 | Rejection of invention patent application after publication |