CN104535433A - Full-size pipeline fatigue test operating platform - Google Patents
Full-size pipeline fatigue test operating platform Download PDFInfo
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- CN104535433A CN104535433A CN201410855846.3A CN201410855846A CN104535433A CN 104535433 A CN104535433 A CN 104535433A CN 201410855846 A CN201410855846 A CN 201410855846A CN 104535433 A CN104535433 A CN 104535433A
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Abstract
The invention discloses a full-size pipeline fatigue test operating platform and belongs to the technical field of ocean engineering equipment. The full-size pipeline fatigue test operating platform comprises a base, two guide rail beams and two servo actuation systems, the specification of the base is 12600 mm*1300 mm*2880 mm, the two guide rail beams are arranged on the two sides of the base in the length direction of the base in parallel, each servo actuation system is provided with sliding trundles, the servo actuation systems can travel on the two guide rail beams through the sliding trundles, each servo actuation system is further provided with a first pipeline clamp, and the full-size pipeline fatigue test operating platform is loaded with a pipeline sample through the first pipeline clamps. The requirements of a full-size pipeline fatigue test for the operating platform can be met. After the pipeline sample is loaded, three-point and four-point bending dynamic and static coordinating loading or separated loading of the pipeline sample can be achieved. According to the specifications of pipeline samples to be loaded, the distance between the two servo actuation systems can be adjusted, and adaptability is higher.
Description
Technical field
The present invention relates to marine engineering equipment technical field, particularly one full-scale pipeline torture test operating platform.
Background technology
Along with the increasing of marine petroleum development dynamics, future need lay a large amount of submarine pipelines.Due to singularity and the complicacy of marine environment, submarine pipeline security in-service also just becomes the problem needing special concern in its design, laying, operation process.In the factors causing submarine pipeline accident, fatigue damage is the main cause causing submarine pipeline to lose efficacy.
Submarine pipeline is as the typical welded structure of one, its welding process usually makes the structure property of welding joint change, thus inevitably produce various defect, and have that serious stress is concentrated, the impact of the mechanics factors such as toe zone notch stress-concentration and high numerical value welding residual-tensile stress, the ability causing it to bear fatigue load is poor, makes welding joint become the weak link of structure.
The fatigue break of submarine pipeline is caused by the various alterante stresses existed in pipeline often, this alterante stress comes from the fluctuation of discharge pressure in pipe on the one hand, then come from the fluctuating load of pipeline external on the other hand, such as: submarine pipeline bears wave, ocean current and ice load, the unsettled section of Kaman's vibration etc. produced under the impact of water that pipeline section is formed not due to buried depth is passed through.Alterante stress makes the defect on pipe interior and surface expand, and finally causes the fatigue break of pipeline, forces supplying oil and gas to interrupt, produce serious consequence.In addition, fatigue break occurs suddenly often, does not have sign in advance, once generation can bringing on a disaster property consequence.
At present, the assessment of domestic submarine pipeline fatigue lifetime, generally all adopt small-size test piece to carry out analysis of experiments, but research shows, adopts small sample data to be foundation in the design, consequently relatively dangerous.Pipeline full scale fatigue test more truly can reflect the actual conditions of Crack Extension in pipeline, comprises the impact such as size effect, unrelieved stress, for its analysis of Fatigue-life and prediction provide true and reliable decision-making foundation.Therefore, part offshore company in recent years, has started to carry out pipeline full scale fatigue test in important engineering, and requires the foundation as the design of pipe layer Cheng Qian phase and construction using full scale fatigue test result.State's development and designs such as external existing Norway, the U.S. and Brazil go out multi-form pipeline full scale fatigue test operating platform, achieve good effect in actual applications.Due to submarine pipeline welding joint full scale fatigue test length consuming time, costly, and by the restriction of the conditions such as equipment, domestic research work is in this respect also little, and utilizable data and information is very limited.
Summary of the invention
In order to solve the problem, the present invention proposes a kind of full-scale pipeline torture test operating platform being applicable to all types of full-scale pipeline testing fatigue.
Full-scale pipeline torture test operating platform provided by the invention comprises base, two guide rail beams and two servoactuation systems, the specification of described base is 12600mm × 1300mm × 2880mm, described two guide rail beams are set in parallel in the both sides of described base along described base length direction, described servoactuation system has slip castor, described servoactuation system can be walked by described slip castor on described two guide rail beams, described servoactuation system is also provided with the first pipeline jig, Piping specimen is carried on described full-scale pipeline torture test operating platform by the first pipeline jig described.
As preferably, described servoactuation system comprises servo-valve, load cell, servo actuator, free bearing and rotating shaft are installed, described servo-valve is used for opening or cutting out described servo actuator, described load cell is used to indicate the load of described servo actuator, described installation free bearing is provided with the first through hole, described servo actuator is provided with the second through hole, described rotating shaft one end is fixedly connected on the first pipeline jig described, the other end passes described second through hole and is fixedly connected on described servo actuator, described rotating shaft has surplus through after described second through hole, described rotating shaft utilizes described surplus can rotate in described first through hole.
As preferably, described full-scale pipeline torture test operating platform also comprises rotation-preventing mechanism, and described rotation-preventing mechanism is fixedly connected on described installation free bearing protrudingly, has gap between described rotation-preventing mechanism and described servo actuator.
As preferably, the first pipeline jig described comprises semi-ring and the first lower semi-ring on the first, described on the first semi-ring be removably connected to the first lower semi-ring, when Piping specimen from described the first is carried on described full-scale pipeline torture test operating platform between semi-ring and the first lower semi-ring time, described on the first on semi-ring and the second semi-ring be fixed together.
As preferably, when Piping specimen from described the first is carried on described full-scale pipeline torture test operating platform between semi-ring and the first lower semi-ring time, described together with semi-ring is all bolted to by least two with semi-ring both sides on the second on the first.
As preferably, described full-scale pipeline torture test operating platform also comprises movable support, the described bearing that can move has slip castor, described movable support can be walked by described slip castor on described guide rail beam, described movable support is also provided with the second pipeline jig, and Piping specimen is carried on described full-scale pipeline torture test operating platform by described the second pipeline jig.
As preferably, described the second pipeline jig is articulated with described movable support, described the second pipeline jig to comprise on the second semi-ring under semi-ring and the second, on described the second, semi-ring is articulated with semi-ring under the second, and Piping specimen is carried on described full-scale pipeline torture test operating platform between semi-ring under semi-ring described the second and the second.
As preferably, described full-scale pipeline torture test operating platform also comprises gland, clearance adjustment mechanism and horizontal sliding mechanism, under described the second, the both sides of semi-ring have storage tank, when Piping specimen is from when being carried on described full-scale pipeline torture test operating platform between semi-ring under semi-ring described the second and the second, on described the second, under semi-ring and the second, the hinged place of semi-ring is contained in described storage tank, described gland is fixedly connected on described storage tank, and described horizontal sliding mechanism and clearance adjustment mechanism are all arranged in described storage tank.
As preferably, described full-scale pipeline torture test operating platform also comprises several protection buckles, and described protection buckle compartment of terrain is horizontally placed between described two guide rail beams.
As preferably, each described member comprise of one piece casting girder steel is made.
The specification of full-scale pipeline torture test operating platform provided by the invention is 12600mm × 1300mm × 2880mm, therefore, it is possible to meet full-scale pipeline torture test to the requirement of operating platform.Because full-scale pipeline torture test operating platform provided by the invention has two servoactuation systems, load after Piping specimen, can realize 3 of Piping specimen with four-point bending dynamically, static coordination loads or loads separately; Overcome in conventional pipeline torture test process and test the defect that loaded type formula is single, polymorphic type test loading cannot realize.In addition, because the servoactuation system of full-scale pipeline torture test operating platform provided by the invention has movable castor, by this movable castor, servoactuation system can be walked on two guide rail beams, thus, can according to the specification of Piping specimen to be loaded, can adjust the spacing between these two servoactuation systems, adaptability is stronger.
Accompanying drawing explanation
Fig. 1 for full-scale pipeline torture test operating platform that the embodiment of the present invention provides be loaded with Piping specimen after structural representation;
The structural representation of the servoactuation system applied in the full-scale pipeline torture test operating platform that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the movable support applied in the full-scale pipeline torture test operating platform that Fig. 3 provides for the embodiment of the present invention.
Embodiment
In order to understand the present invention in depth, below in conjunction with drawings and the specific embodiments, the present invention is described in detail.
See accompanying drawing 1 and accompanying drawing 2, full-scale pipeline torture test operating platform provided by the invention comprises base 1, two guide rail beams 2 and two servoactuation systems 4, the specification of base is 12600mm × 1300mm × 2880mm, two guide rail beams 2 are set in parallel in the both sides of base along base 1 length direction, servoactuation system 4 has slip castor 19, servoactuation system 4 can be walked by slip castor 19 on two guide rail beams 2, servoactuation system 4 is also provided with the first pipeline jig 7a, Piping specimen 3 is carried on full-scale pipeline torture test operating platform by the first pipeline jig 7a.
The specification of full-scale pipeline torture test operating platform provided by the invention is 12600mm × 1300mm × 2880mm, therefore, it is possible to meet full-scale pipeline torture test to the requirement of operating platform.Because full-scale pipeline torture test operating platform provided by the invention has two servoactuation systems 4, load after Piping specimen 3, can realize 3 of Piping specimen 3 with four-point bending dynamically, static coordination loads or loads separately; Overcome in conventional pipeline torture test process and test the defect that loaded type formula is single, polymorphic type test loading cannot realize.In addition, because the servoactuation system 4 of full-scale pipeline torture test operating platform provided by the invention has movable castor 19, by this movable castor 19, servoactuation system 4 can be walked on two guide rail beams 2, thus, can according to the specification of Piping specimen 3 to be loaded, can adjust the spacing between these two servoactuation systems 4, adaptability is stronger.
Wherein, as a kind of concrete implementation of servoactuation system 4, servoactuation system 4 comprises servo-valve 9, load cell 10, servo actuator 11, free bearing 13 and rotating shaft 21 are installed, servo-valve 9 is for opening or cutting out servo actuator 11, load cell 10 is used to indicate the load of servo actuator 11, free bearing 13 is installed and is provided with the first through hole, servo actuator 11 is provided with the second through hole, rotating shaft 21 one end is fixedly connected on the first pipeline jig 7a, the other end passes the second through hole and is fixedly connected on servo actuator 1, rotating shaft 21 has surplus through after the second through hole, rotating shaft 21 utilizes surplus can rotate in the first through hole.This test platform is in process of the test, the Free Transform of Piping specimen 3 can be ensured by hinged clamping ring 8 and the hinged clamping ring 8 be connected with Piping specimen 3 can not be made to deflect, thus load acting force in warranty test process all the time perpendicular to the central axis of Piping specimen 3, and side force can not be produced, ensure that stability and the security of process of the test.
Wherein, full-scale pipeline torture test operating platform also comprises rotation-preventing mechanism 12, and rotation-preventing mechanism 12 is fixedly connected on protrudingly to be installed on free bearing 13, has gap between rotation-preventing mechanism 12 and servo actuator 11.As previously mentioned, in order to stability and the security of warranty test process, allow that hinged clamping ring 8 deflects with rotating shaft 21, but in order to prevent the deflection angle of rotating shaft 21 excessive, need to set up rotation-preventing mechanism 12 on installation free bearing 13, owing to having gap between this rotation-preventing mechanism 12 and servo actuator 11, this hinged clamping ring 8 can at this interstice coverage intrinsic deflection, once exceed this deflection angle, will be stoped by rotation-preventing mechanism 12.Further ensure that stability and the security of process of the test.
Wherein, as a kind of concrete implementation of the first pipeline jig, the first pipeline jig 7a comprises semi-ring and the first lower semi-ring on the first, on the first, semi-ring is removably connected to the first lower semi-ring, when Piping specimen 3 from the first be carried on full-scale pipeline torture test operating platform between semi-ring and the first lower semi-ring time, on the first, on semi-ring and the second, semi-ring is fixed together.Due to this first pipeline jig 7a the first on semi-ring be removably connected to the first lower semi-ring, load Piping specimen 3 process in, semi-ring the first on is unloaded, loading Piping specimen 3 process terminate after, again semi-ring on the first is fixed on the first lower semi-ring, simple to operate.
Wherein, when Piping specimen 3 from the first be carried on full-scale pipeline torture test operating platform between semi-ring and the first lower semi-ring time, on the first, on semi-ring and the second, semi-ring both sides are all fixed together by least two bolts 20.Because Piping specimen 3 is stressed comparatively large at servoactuation system 4 place, therefore, adopt in this way Piping specimen 3 is clamped in the first pipeline jig 7a safer, reliable.
Wherein, see accompanying drawing 1 and accompanying drawing 3, full-scale pipeline torture test operating platform also comprises movable support, bearing can be moved there is slip castor 19, movable support can be walked by slip castor 19 on guide rail beam 2, movable support is also provided with the second pipeline jig 7b, Piping specimen 3 is carried on full-scale pipeline torture test operating platform by the second pipeline jig 7b.
As preferably, the second pipeline jig is articulated with movable support, the second pipeline jig to comprise on the second semi-ring under semi-ring and the second, on the second, semi-ring is articulated with semi-ring under the second, and Piping specimen is carried on full-scale pipeline torture test operating platform between semi-ring under semi-ring the second and the second.Movable support 6 can be free to slide on guide rail beam 2, meets the span requirement of Piping specimen 3 thus.
Wherein, full-scale pipeline torture test operating platform also comprises gland 15, clearance adjustment mechanism 16 and horizontal sliding mechanism 17, under the second, the both sides of semi-ring have storage tank, when Piping specimen 3 is from when being carried on full-scale pipeline torture test operating platform between semi-ring under semi-ring the second and the second, on the second, under semi-ring and the second, the hinged place of semi-ring is contained in storage tank, gland 15 is fixedly connected on storage tank, and horizontal sliding mechanism 17 and clearance adjustment mechanism 16 are all arranged in storage tank.Sample clamping ring 14 adopts articulated manner to be connected with cast steel support 18, can ensure that Piping specimen 3 stress in sample bending fatigue process is constant thus, can not be subject to additional load impact.In process of the test, if Piping specimen 3 bends, when support span slightly shortens, horizontal sliding mechanism 17 can compensate in real time; Clearance adjustment mechanism 16 gaps that can adjust between horizontal sliding mechanism 17 and gland 15, load requirement with warranty test.
Wherein, see accompanying drawing 1, full-scale pipeline torture test operating platform also comprises several protection buckles 5, and protection buckle 5 compartment of terrain is horizontally placed between two guide rail beams 2.Walk on guide rail beam 2 when servoactuation system 4 and movable support and be, if run into protection buckle 5, they just cannot cross protection buckle 5, and therefore, protection buckle 5 can have position-limiting action to the stroke of servoactuation system 4 and movable support.
Wherein, each member comprise of one piece casting girder steel is made.Overcome in full-scale pipeline torture test process and test that operating platform intensity is low, poor rigidity, easily occur the technological deficiency of fracture failure and fatigure failure.
Above embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; these are only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a full-scale pipeline torture test operating platform, it is characterized in that, comprise base, two guide rail beams and two servoactuation systems, the specification of described base is 12600mm × 1300mm × 2880mm, described two guide rail beams are set in parallel in the both sides of described base along described base length direction, described servoactuation system has slip castor, described servoactuation system can be walked by described slip castor on described two guide rail beams, described servoactuation system is also provided with the first pipeline jig, Piping specimen is carried on described full-scale pipeline torture test operating platform by the first pipeline jig described.
2. full-scale pipeline torture test operating platform according to claim 1, it is characterized in that, described servoactuation system comprises servo-valve, load cell, servo actuator, free bearing and rotating shaft are installed, described servo-valve is used for opening or cutting out described servo actuator, described load cell is used to indicate the load of described servo actuator, described installation free bearing is provided with the first through hole, described servo actuator is provided with the second through hole, described rotating shaft one end is fixedly connected on the first pipeline jig described, the other end passes described second through hole and is fixedly connected on described servo actuator, described rotating shaft has surplus through after described second through hole, described rotating shaft utilizes described surplus can rotate in described first through hole.
3. full-scale pipeline torture test operating platform according to claim 2, it is characterized in that, also comprise rotation-preventing mechanism, described rotation-preventing mechanism is fixedly connected on described installation free bearing protrudingly, has gap between described rotation-preventing mechanism and described servo actuator.
4. full-scale pipeline torture test operating platform according to claim 1, it is characterized in that, the first pipeline jig described comprises semi-ring and the first lower semi-ring on the first, described on the first semi-ring be removably connected to the first lower semi-ring, when Piping specimen from described the first is carried on described full-scale pipeline torture test operating platform between semi-ring and the first lower semi-ring time, described on the first on semi-ring and the second semi-ring be fixed together.
5. full-scale pipeline torture test operating platform according to claim 4, it is characterized in that, when Piping specimen from described the first is carried on described full-scale pipeline torture test operating platform between semi-ring and the first lower semi-ring time, described together with semi-ring is all bolted to by least two with semi-ring both sides on the second on the first.
6. full-scale pipeline torture test operating platform according to claim 1, it is characterized in that, also comprise movable support, the described bearing that can move has slip castor, described movable support can be walked by described slip castor on described guide rail beam, described movable support is also provided with the second pipeline jig, and Piping specimen is carried on described full-scale pipeline torture test operating platform by described the second pipeline jig.
7. full-scale pipeline torture test operating platform according to claim 6, it is characterized in that, described the second pipeline jig is articulated with described movable support, described the second pipeline jig to comprise on the second semi-ring under semi-ring and the second, on described the second, semi-ring is articulated with semi-ring under the second, and Piping specimen is carried on described full-scale pipeline torture test operating platform between semi-ring under semi-ring described the second and the second.
8. full-scale pipeline torture test operating platform according to claim 7, it is characterized in that, also comprise gland, clearance adjustment mechanism and horizontal sliding mechanism, under described the second, the both sides of semi-ring have storage tank, when Piping specimen is from when being carried on described full-scale pipeline torture test operating platform between semi-ring under semi-ring described the second and the second, on described the second, under semi-ring and the second, the hinged place of semi-ring is contained in described storage tank, described gland is fixedly connected on described storage tank, described horizontal sliding mechanism and clearance adjustment mechanism are all arranged in described storage tank.
9. according to described full-scale pipeline torture test operating platform arbitrary in claim 1,3,6, it is characterized in that, also comprise several protection buckles, described protection buckle compartment of terrain is horizontally placed between described two guide rail beams.
10. the full-scale pipeline torture test operating platform according to claim 1,3,6, is characterized in that, each described member comprise of one piece casting girder steel is made.
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| CN201410855846.3A CN104535433A (en) | 2014-12-31 | 2014-12-31 | Full-size pipeline fatigue test operating platform |
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Cited By (12)
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| CN104807704A (en) * | 2015-05-08 | 2015-07-29 | 西安向阳航天材料股份有限公司 | Bi-metal composite pipe bending test device |
| CN106769396A (en) * | 2017-02-08 | 2017-05-31 | 中国地质大学（武汉） | A kind of horizontal directional drill drilling rod fatigue damage detecting system |
| CN107389470A (en) * | 2017-08-09 | 2017-11-24 | 中国石油天然气集团公司 | A kind of full-scale rotary bending fatigue test device and method of oil well pipe |
| CN107389475A (en) * | 2017-08-21 | 2017-11-24 | 西南交通大学 | Asphalt interlaminar shear strength test device based on four_point bending beam method |
| CN108195549A (en) * | 2018-01-02 | 2018-06-22 | 中国航天空气动力技术研究院 | A kind of support system suitable for the operation of wind-tunnel various modes |
| CN108844813A (en) * | 2018-08-17 | 2018-11-20 | 南京航空航天大学 | A kind of fixture for fatigue tester |
| CN109142062A (en) * | 2018-10-26 | 2019-01-04 | 镇江龙成绝缘材料有限公司 | A kind of polyimide molding part tube body bursting stress experimental rig and its application |
| CN109342177A (en) * | 2018-11-20 | 2019-02-15 | 大连理工大学 | A kind of full-scale pipeline deep-sea complexity ocean environmental loads combination loading pilot system |
| CN110018047A (en) * | 2019-03-12 | 2019-07-16 | 天津大学 | A kind of deep-sea pipeline Complicated Loads combination loading pilot system |
| CN111579227A (en) * | 2020-05-13 | 2020-08-25 | 中国水产科学研究院南海水产研究所 | Test equipment for testing mechanical property of deep water net cage floating frame structure |
| CN111721520A (en) * | 2020-06-30 | 2020-09-29 | 山东建筑大学 | Monotonic static force loading device for flexural member and working method |
| CN113075064A (en) * | 2021-02-05 | 2021-07-06 | 海洋石油工程（青岛）有限公司 | Full-size fatigue test method for tension tendon welded joint of tension leg platform |
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| CN104807704B (en) * | 2015-05-08 | 2017-08-08 | 西安向阳航天材料股份有限公司 | A kind of composite bimetal pipe bend test device |
| CN104807704A (en) * | 2015-05-08 | 2015-07-29 | 西安向阳航天材料股份有限公司 | Bi-metal composite pipe bending test device |
| CN106769396B (en) * | 2017-02-08 | 2019-03-01 | 中国地质大学（武汉） | A kind of horizontal directional drill drilling rod fatigue damage detection system |
| CN106769396A (en) * | 2017-02-08 | 2017-05-31 | 中国地质大学（武汉） | A kind of horizontal directional drill drilling rod fatigue damage detecting system |
| CN107389470A (en) * | 2017-08-09 | 2017-11-24 | 中国石油天然气集团公司 | A kind of full-scale rotary bending fatigue test device and method of oil well pipe |
| CN107389470B (en) * | 2017-08-09 | 2020-07-14 | 中国石油天然气集团公司 | Full-size rotating bending fatigue test device and method for oil well pipe |
| CN107389475A (en) * | 2017-08-21 | 2017-11-24 | 西南交通大学 | Asphalt interlaminar shear strength test device based on four_point bending beam method |
| CN107389475B (en) * | 2017-08-21 | 2019-10-11 | 西南交通大学 | Asphalt interlaminar shear strength test device based on four_point bending beam method |
| CN108195549A (en) * | 2018-01-02 | 2018-06-22 | 中国航天空气动力技术研究院 | A kind of support system suitable for the operation of wind-tunnel various modes |
| CN108195549B (en) * | 2018-01-02 | 2019-12-20 | 中国航天空气动力技术研究院 | Supporting system suitable for wind tunnel multi-mode operation |
| CN108844813A (en) * | 2018-08-17 | 2018-11-20 | 南京航空航天大学 | A kind of fixture for fatigue tester |
| CN108844813B (en) * | 2018-08-17 | 2020-07-31 | 南京航空航天大学 | Clamp for fatigue testing machine |
| CN109142062A (en) * | 2018-10-26 | 2019-01-04 | 镇江龙成绝缘材料有限公司 | A kind of polyimide molding part tube body bursting stress experimental rig and its application |
| CN109342177A (en) * | 2018-11-20 | 2019-02-15 | 大连理工大学 | A kind of full-scale pipeline deep-sea complexity ocean environmental loads combination loading pilot system |
| CN109342177B (en) * | 2018-11-20 | 2021-02-23 | 大连理工大学 | Full-size pipeline deep sea complex marine environment load combined loading test system |
| CN110018047A (en) * | 2019-03-12 | 2019-07-16 | 天津大学 | A kind of deep-sea pipeline Complicated Loads combination loading pilot system |
| CN111579227A (en) * | 2020-05-13 | 2020-08-25 | 中国水产科学研究院南海水产研究所 | Test equipment for testing mechanical property of deep water net cage floating frame structure |
| CN111721520A (en) * | 2020-06-30 | 2020-09-29 | 山东建筑大学 | Monotonic static force loading device for flexural member and working method |
| CN113075064A (en) * | 2021-02-05 | 2021-07-06 | 海洋石油工程（青岛）有限公司 | Full-size fatigue test method for tension tendon welded joint of tension leg platform |
| CN113075064B (en) * | 2021-02-05 | 2023-02-28 | 海洋石油工程（青岛）有限公司 | Full-size fatigue test method for tension tendon welded joint of tension leg platform |
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