CN111426564A - Pipeline complex load loading test device - Google Patents
Pipeline complex load loading test device Download PDFInfo
- Publication number
- CN111426564A CN111426564A CN202010300048.XA CN202010300048A CN111426564A CN 111426564 A CN111426564 A CN 111426564A CN 202010300048 A CN202010300048 A CN 202010300048A CN 111426564 A CN111426564 A CN 111426564A
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- loading
- connecting rod
- bending moment
- test
- rotating shaft
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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
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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
- G01N3/02—Details
-
- 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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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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
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
Abstract
The invention relates to a pipeline complex load loading test device, which is used for carrying out a load loading test on a test pipe fitting (12) and comprises a load providing component, a load transmission component and a pipeline fixing component, wherein the load providing component comprises an axial displacement driving gear (1), a torsion driving gear (2), a fixed rotating shaft (8), a bending moment loading rotating shaft (9) and a limiting component; the load transfer component comprises a loading connecting rod front end (3), a hinged joint (4), a loading connecting rod rear end (5) and a connecting rod end flange (10); the pipeline fixing component is a pipe fitting front end flange (11). Wherein, the joint of the front end (3) of the loading connecting rod, the axial displacement driving gear (1) and the torsion driving gear (2) is provided with a tooth-shaped joint surface which is respectively used for transmitting tension and torque and is in contact connection with each other through a tooth surface; the front end (3) of the loading connecting rod is connected with the rear end (5) of the loading connecting rod through a hinged joint (4).
Description
Technical Field
The invention relates to the technical field of pipeline tests, and is used for carrying out combined loading of multiple loads on a test pipeline and carrying out a pipeline deep sea pressure test under the action of complex loads.
Background
With the vigorous development of marine oil and gas resources in China, marine pipelines play an important role in the oil and gas exploitation and operation process. The deep sea pipeline bears a plurality of loads such as dead weight, external hydrostatic pressure, seabed acting force and the like, the mechanical property of the deep sea pipeline under the action of complex loads is always the key point of research of numerous scholars at home and abroad, and the full-scale test is helpful for eliminating the influence of the size effect on the test result and obtaining more accurate test data. In the development of full-scale test equipment, the combined loading mode of complex loads including tension, compression, bending, torsion and hydrostatic pressure is an important subject.
Disclosure of Invention
The invention aims to provide a combined loading device for pipeline tension, torque and bending moment in a deep water pressure cabin. The technical scheme is as follows:
a pipeline complex load loading test device is used for carrying out a load loading test on a test pipe fitting 12 and comprises a load providing component, a load transmission component and a pipeline fixing component, wherein the load providing component comprises an axial displacement driving gear 1, a torsion driving gear 2, a fixed rotating shaft 8, a bending moment loading rotating shaft 9 and a limiting component; the load transfer component comprises a loading connecting rod front end 3, a hinged joint 4, a loading connecting rod rear end 5 and a connecting rod end flange 10; the pipeline fixing component is a pipe fitting front end flange 11.
The joint of the front end 3 of the loading connecting rod, the axial displacement driving gear 1 and the torsion driving gear 2 is provided with a tooth-shaped joint surface which is respectively used for transmitting tension and torque and is in contact connection with each other through a tooth surface.
The loading link front end 3 is connected with the loading link rear end 5 by a hinged joint 4.
The limiting component, the fixed rotating shaft 8 and the bending moment loading rotating shaft 9 are rigidly connected to form a bending moment loading module together, and the fixed rotating shaft 8 is fixedly connected with an external component and used for limiting the bending moment loading module to only rotate around the fixed rotating shaft 8; the bending moment loading rotating shaft 7 is connected with a piston rod of the hydraulic oil cylinder and provides a driving force for the rotation of the bending moment loading module; the limiting component is used for limiting the rear end 5 of the loading connecting rod, transmits the rotation of the bending moment loading module to the connecting rod end flange 10, and simultaneously does not limit the axial displacement and the rotation of the rear end 5 of the loading connecting rod.
The test pipe 12 is tightly connected with the connecting rod end flange 10 through the pipe front end flange 11.
Preferably, the axial displacement driving gears 1 are two opposite in position, and the two axial displacement driving gears synchronously rotate in opposite directions to provide axial tension for a pipeline test together; the driving gear 2 is twisted to rotate clockwise and anticlockwise so as to provide torque required by a pipeline test; the bending moment loading module is rotated to drive the connecting rod end flange 10 and the pipe fitting front end flange 11 to rotate so as to provide bending moment required by a pipeline test.
The tension sensor and the bending moment sensor are fixed on the rear end 5 of the loading connecting rod, the torque sensor is fixed at the hinged joint 4, and the strain gauge is attached to the test pipe fitting 12.
Drawings
FIG. 1 is an isometric view of the device of the present invention; FIG. 2 is a front view of the apparatus of the present invention; FIG. 3 is a top view of the apparatus of the present invention;
the icons are labeled as follows: 1-axial displacement drive gear; 2-a torsion drive gear; 3-loading the front end of the connecting rod; 4-an articulated joint; 5-loading the rear end of the connecting rod; 6-a baffle plate; 7-a stop lever; 8-fixing the rotating shaft; 9-bending moment loading rotating shaft; 10-connecting rod end flange; 11-pipe fitting front end flange; 12-test tubes.
Detailed Description
The combined loading device for pipeline tension, torque and bending moment in the full-size deepwater pressure cabin is provided. On the basis of the existing deep sea hydraulic loading cabin, the loading end of the deep sea hydraulic loading cabin is designed, so that the deep sea loading condition is better simulated. The device consists of a load providing component, a load transmission component and a pipeline fixing component. The load providing component comprises an axial displacement driving gear 1, a torsion driving gear 2, a fixed rotating shaft 8, a bending moment loading rotating shaft 9 and a limiting component comprising a baffle 6 and a stop lever 7; the load transfer component comprises a loading connecting rod front end 3, a hinged joint 4, a loading connecting rod rear end 5 and a connecting rod end flange 10; the pipeline fixing component is a pipe fitting front end flange 11.
The joint of the front end 3 of the loading connecting rod with the axial displacement driving gear 1 and the torsion driving gear 2 is provided with a tooth-shaped joint surface which is used for transmitting pulling force and torque respectively, and the front end 3 of the loading connecting rod is only in contact connection with the tooth surface, and can simultaneously generate small-amplitude axial displacement and rotation.
The front end 3 of the loading connecting rod is connected with the rear end 5 of the loading connecting rod through the hinged joint 4, and the joint position does not bear bending moment, but can still transmit pulling force and torque.
The baffle 6, the stop lever 7, the fixed rotating shaft 8 and the bending moment loading rotating shaft 9 are rigidly connected to form a bending moment loading module together. The fixed rotating shaft 8 is fixed on the pressure chamber, and the bending moment loading limiting module can only rotate around the fixed rotating shaft 8; the bending moment loading rotating shaft 7 is connected with a piston rod of the hydraulic oil cylinder and provides a driving force for the rotation of the bending moment loading module; the baffle 6 and the stop lever 7 are only contacted with the rear end 5 of the loading connecting rod, the rotation of the bending moment loading module is transmitted to the connecting rod end flange 10, and meanwhile, the small-amplitude axial displacement and rotation of the rear end 5 of the loading connecting rod are not limited. The baffle 6 comprises two baffles which are connected through a plurality of baffle rods 7 and are positioned at the periphery of the rear end 5 of the loading connecting rod
The connecting rod end flange 10 and the pipe fitting front end flange 11 are both blind flange flanges and are tightly connected through bolts, so that the transmission of bending moment, axial tension and compression and torque can be realized.
The front end flange 11 of the pipe fitting is welded with the test pipe fitting 12, and the test pipe fitting 12 is closed and is hollow or has internal flow so as to simulate a real oil pipeline.
The rear end flange of the test pipe fitting 12 is fixed, and the driving gears 1 synchronously and reversely rotate through the upper axial displacement and the lower axial displacement to jointly provide axial tension for a pipeline test; the driving gear 2 can rotate clockwise and anticlockwise through twisting to provide torque required by a pipeline test; the bending moment loading module is rotated to drive the connecting rod end flange 10 and the pipe fitting front end flange 11 to rotate so as to provide bending moment required by a pipeline test. The three can be loaded independently and together, and the combined loading of hydrostatic pressure, tension, torque and bending moment can be realized by the aid of the sealing environment of the deepwater pressure cabin.
In the invention, the tension sensor and the bending moment sensor can be arranged on the rear end 5 of the loading connecting rod, the torque sensor can be arranged at the hinged joint 4, and the strain gauge can be attached to the test pipe fitting 12 before entering the cabin.
Claims (3)
1. A pipeline complex load loading test device is used for carrying out a load loading test on a test pipe fitting (12) and comprises a load providing component, a load transmission component and a pipeline fixing component, wherein the load providing component comprises an axial displacement driving gear (1), a torsion driving gear (2), a fixed rotating shaft (8), a bending moment loading rotating shaft (9) and a limiting component; the load transfer component comprises a loading connecting rod front end (3), a hinged joint (4), a loading connecting rod rear end (5) and a connecting rod end flange (10); the pipeline fixing component is a pipe fitting front end flange (11). Wherein the content of the first and second substances,
the joint of the front end (3) of the loading connecting rod, the axial displacement driving gear (1) and the torsion driving gear (2) is provided with a tooth-shaped joint surface which is respectively used for transmitting tension and torque and is in contact connection with each other through a tooth surface;
the front end (3) of the loading connecting rod is connected with the rear end (5) of the loading connecting rod through a hinged joint (4);
the limiting component, the fixed rotating shaft (8) and the bending moment loading rotating shaft (9) are rigidly connected to form a bending moment loading module together, and the fixed rotating shaft (8) is fixedly connected with an external component and used for limiting the bending moment loading module to only rotate around the fixed rotating shaft (8); the bending moment loading rotating shaft 7 is connected with a piston rod of the hydraulic oil cylinder and provides a driving force for the rotation of the bending moment loading module; the limiting component is used for limiting the rear end (5) of the loading connecting rod, transmitting the rotation of the bending moment loading module to the connecting rod end flange (10), and meanwhile, not limiting the axial displacement and the rotation of the rear end (5) of the loading connecting rod;
the test pipe fitting (12) is tightly connected with the connecting rod end flange (10) through the pipe fitting front end flange (11).
2. The device according to claim 1, wherein the axial displacement driving gears (1) are two opposite in position, and the two axial displacement driving gears synchronously rotate in opposite directions to jointly provide axial tension for the pipeline test; the clockwise and anticlockwise rotation is carried out by twisting the driving gear (2) so as to provide the torque required by the pipeline test; the connecting rod end flange (10) and the pipe fitting front end flange (11) are driven to rotate through the rotating bending moment loading module, so that bending moment required by a pipeline test is provided.
3. The device according to claim 1, characterized in that the tension sensor and the bending moment sensor are fixed on the rear end (5) of the loading connecting rod, the torque sensor is fixed at the hinged joint (4), and the strain gauge is attached to the test tube (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010300048.XA CN111426564B (en) | 2020-04-16 | 2020-04-16 | Pipeline complex load loading test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010300048.XA CN111426564B (en) | 2020-04-16 | 2020-04-16 | Pipeline complex load loading test device |
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| Publication Number | Publication Date |
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| CN111426564A true CN111426564A (en) | 2020-07-17 |
| CN111426564B CN111426564B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010300048.XA Active CN111426564B (en) | 2020-04-16 | 2020-04-16 | Pipeline complex load loading test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533028A (en) * | 2021-08-18 | 2021-10-22 | 天津大学 | Multi-degree-of-freedom elastic rotation constraint simulation system |
| CN114636523A (en) * | 2022-05-17 | 2022-06-17 | 浙江大学 | Carrier gas bin testing device for hydrogen conveying pipeline |
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|---|---|---|---|---|
| JP2001074624A (en) * | 1999-09-01 | 2001-03-23 | Nippon Steel Corp | External pressure load-testing device of steel pipe |
| CN101441477A (en) * | 2007-11-19 | 2009-05-27 | 北京航空航天大学 | Bending combined two-dimension time-varying load loading unit |
| CN103900913A (en) * | 2012-12-25 | 2014-07-02 | 中国直升机设计研究所 | Assessment area equal bending moment applying apparatus |
| CN106442181A (en) * | 2016-09-16 | 2017-02-22 | 天津大学 | Fatigue test device for marine riser external corrosion |
| CN106442133A (en) * | 2016-10-08 | 2017-02-22 | 大连理工大学 | Oceanographic engineering flexible tube cable stretching bending combination experimental facility and experimental method |
| CN110196156A (en) * | 2019-03-12 | 2019-09-03 | 天津大学 | A kind of deep-sea pipeline Complicated Loads combination loading test method |
| CN110895194A (en) * | 2019-11-07 | 2020-03-20 | 天津航天瑞莱科技有限公司 | Engine shafting rigidity simulation and loading precision control device |
-
2020
- 2020-04-16 CN CN202010300048.XA patent/CN111426564B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001074624A (en) * | 1999-09-01 | 2001-03-23 | Nippon Steel Corp | External pressure load-testing device of steel pipe |
| CN101441477A (en) * | 2007-11-19 | 2009-05-27 | 北京航空航天大学 | Bending combined two-dimension time-varying load loading unit |
| CN103900913A (en) * | 2012-12-25 | 2014-07-02 | 中国直升机设计研究所 | Assessment area equal bending moment applying apparatus |
| CN106442181A (en) * | 2016-09-16 | 2017-02-22 | 天津大学 | Fatigue test device for marine riser external corrosion |
| CN106442133A (en) * | 2016-10-08 | 2017-02-22 | 大连理工大学 | Oceanographic engineering flexible tube cable stretching bending combination experimental facility and experimental method |
| CN110196156A (en) * | 2019-03-12 | 2019-09-03 | 天津大学 | A kind of deep-sea pipeline Complicated Loads combination loading test method |
| CN110895194A (en) * | 2019-11-07 | 2020-03-20 | 天津航天瑞莱科技有限公司 | Engine shafting rigidity simulation and loading precision control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533028A (en) * | 2021-08-18 | 2021-10-22 | 天津大学 | Multi-degree-of-freedom elastic rotation constraint simulation system |
| CN114636523A (en) * | 2022-05-17 | 2022-06-17 | 浙江大学 | Carrier gas bin testing device for hydrogen conveying pipeline |
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| CN111426564B (en) | 2022-04-29 |
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