CN102095630B - Vertical-type fatigue test device used for vertical tube - Google Patents
Vertical-type fatigue test device used for vertical tube Download PDFInfo
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- CN102095630B CN102095630B CN 201010606154 CN201010606154A CN102095630B CN 102095630 B CN102095630 B CN 102095630B CN 201010606154 CN201010606154 CN 201010606154 CN 201010606154 A CN201010606154 A CN 201010606154A CN 102095630 B CN102095630 B CN 102095630B
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Abstract
The invention relates to a vertical-type fatigue test device used for a vertical tube, comprising a vertical-type tower, top acting cylinders, a bottom acting cylinder, a horizontal acting cylinder and a horizontal sand tank. During simulating the fatigue test of the upper part of the vertical tube, the vertical-type tower is transversely fixed with a rigid upper base plate, two top acting cylinders are connected with the rigid upper base plate, the piston rods of the two top acting cylinders are hinged with a rigid connecting plate, the lower end of the rigid connecting plate is fixedly connected with a test vertical tube; and the lower end of the test vertical tube is supported by and connected with the bottom acting cylinder, the horizontal acting cylinder is fixed at the position corresponding to the middle bottom part of the test vertical tube, and the piston rod of the horizontal acting cylinder can reach and touch the test vertical tube. During simulating the fatigue test of the lower part of the vertical tube, the lower end of the rigid connecting plate is hinged with the test vertical tube, the other end of the vertical tube is inserted into the horizontal sand tank and is fixed by a fixing device; and the sand tank is filled with sand and water. The test device provided by the invention can simulate not only the fatigue state of the upper part of the vertical tube but also the fatigue state of the lower part of the vertical tube, thus the aim of a multipurpose test device is achieved.
Description
Technical field
The present invention relates to a kind of device that standpipe is carried out torture test, particularly about a kind of vertical fatigue experimental device.
Background technology
For the torture test of marine oil and gas exploitation neutral tube device, what present stage mainly adopted is that smooth small specimen is carried out torture test; The real yardstick bending fatigue testing device of general standpipe mainly adopts " horizontal " device, can provide the fatigue lifetime of standpipe under Moment, and financial cost is lower." but horizontal " device can not reflect Action of Gravity Field to standpipe impact fatigue lifetime, and gravity also is the factor that standpipe be can not ignore at the true sea situation next one.In addition, existing fatigue experimental device, perhaps just carry out torture test for riser upper, perhaps just carry out torture test for standpipe bottom mud face place, and near the fatigue problem the standpipe touchdown point also is problem of can not ignore in the contemporary marine technology.
Summary of the invention
For the problems referred to above, the purpose of this invention is to provide a kind of vertical-type fatigue test device used for vertical tube, it both can have been simulated riser upper and be subjected to environmental load to make the fatigue conditions of time spent, also can simulate near the fatigue conditions of the standpipe bottom touchdown point zone, accomplished that a device is multiplex.
For achieving the above object, the present invention takes following technical scheme: a kind of vertical-type fatigue test device used for vertical tube, when the simulation riser upper is subjected to the fatigue conditions of environmental load effect, its following setting: comprise a vertical pylon, on vertical pylon, laterally fix a rigidity upper plate, two top acting cylinders all are connected to the base of acting cylinder the bottom of described rigidity upper plate, the piston rod external part of two described top acting cylinders all is hinged to a rigid connecting fishplate bar, and described rigid connecting fishplate bar lower end is fixedly connected with the test standpipe; The lower end of described test standpipe is by the piston rod support and connection of a bottom acting cylinder, and the base of described bottom acting cylinder is fixed on the described vertical pylon; On the described vertical pylon corresponding with test position, standpipe middle and lower part, fix a horizontal force cylinder, the piston rod of horizontal force cylinder is conflicted in telescopic process on the described test standpipe.
Above-mentioned rigid connecting fishplate bar lower end can be fixedly connected with described test standpipe by a standpipe is pullover.
During near in simulation standpipe bottom the touchdown point zone fatigue conditions, its following setting: comprise a vertical pylon, on vertical pylon, laterally fix a rigidity upper plate, two top acting cylinders all are connected to the base of acting cylinder the bottom of described rigidity upper plate, the piston rod external part of two described top acting cylinders all is hinged to a rigid connecting fishplate bar, the hinged test standpipe in described rigid connecting fishplate bar lower end; The other end of described test standpipe extend in the horizontal husky groove, and is fixed by the stationary installation that is positioned at the horizontal husky groove other end; Be placed with sand, water in the described horizontal husky groove.
The hinged described test standpipe of a connecting link can be passed through in the lower end of above-mentioned rigid connecting fishplate bar.
Described top acting cylinder, bottom acting cylinder, horizontal force cylinder are controlled by servo control mechanism, wherein to the described top acting cylinder alternating force of certain probability distribution in addition.
Described top acting cylinder, bottom acting cylinder, horizontal force cylinder are hydraulic cylinder.
The present invention is owing to take above technical scheme, its beneficial effect that has is: the present invention adopts a covering device, as required action by different parts, the torture test that realizes riser upper and platform join domain can be simulated, the torture test of standpipe lower well port area and mud face contact area can also be simulated.When doing the top test, in the test standpipe, finish the torture test of riser upper under the environmental load effect by top acting cylinder, bottom acting cylinder and the acting in conjunction of horizontal force cylinder.When doing the bottom test, the top acting cylinder acts on the test standpipe, and the top acting cylinder both can have been simulated near the elevating movement of standpipe touchdown point, can simulate again near the tangential movement of standpipe touchdown point.The test standpipe is hinged on the below of top acting cylinder, and extend in the husky groove, thereby near the cyclic shift of simulation standpipe touchdown point.In the test standpipe water is housed, closed at both ends adds interior pressure, can simulate the real work situation of standpipe in the deep-sea.
Description of drawings
Fig. 1 is the fatigue device synoptic diagram of simulation riser upper and platform join domain;
Fig. 2 is the fatigue device synoptic diagram of simulation standpipe lower well port area and mud face contact area.
Embodiment
Be described in detail of the present invention below in conjunction with drawings and Examples.
As shown in Figure 1, 2, a kind of vertical-type fatigue test device used for vertical tube, it comprises following critical component generally: vertical pylon 1, top acting cylinder 3 and 4, bottom acting cylinder 8, horizontal force cylinder 9, horizontal husky groove 11.As about the Simulated Fatigue Test of riser upper and platform join domain the time, mainly use vertical pylon 1, top acting cylinder 3 and 4, bottom acting cylinder 8, horizontal force cylinder 9 and finish test.As about the Simulated Fatigue Test of standpipe bottom and mud face contact area the time, mainly use vertical pylon 1, top acting cylinder 3 and 4 and horizontal husky groove 11 finish test.
Fig. 1 is the vertical torture test synoptic diagram of simulation riser upper and platform join domain, and it fixedly mounts a rigidity upper plate 2 in the upper end of vertical pylon 1.Top acting cylinder 3,4 base portion are connected respectively to the bottom of rigidity upper plate 2, and acting cylinder 3,4 is arranged side by side, and its piston-rod lower end is hinged on the rigid connecting fishplate bar 5.The bottom of rigid connecting fishplate bar 5 standpipe that is connected is pullover 6, joint test standpipe 7 on the standpipe pullover 6.Test standpipe 7 vertically is arranged in the device, and connections is connected in the lower end of test standpipe 7 with the bottom acting cylinder, and the base that is specially bottom acting cylinder 8 is fixed on the bottom of pylon 1, and the tailpiece of the piston rod of bottom acting cylinder 8 is connected to the lower end of testing standpipe 7.On the pylon 1 corresponding with test position, standpipe 7 middle and lower part, fix a horizontal force cylinder 9, the piston rod of horizontal force cylinder 9 can be conflicted in telescopic process and be tested on the standpipe 7, and can execute a transverse force to test standpipe 7.
Test structure shown in Figure 1 mainly by top acting cylinder 3 and 4, bottom acting cylinder 8 and 9 actings in conjunction of horizontal force cylinder in the test standpipe 7, finish the torture test of riser upper under the environmental load effect.Top acting cylinder 3,4 is used for the roll and pitch motion of analog platform, and bottom acting cylinder 8 is used for simulating the axial tensile force of standpipe, and horizontal force cylinder 9 is used for simulating the relative level displacement of this position standpipe and platform.The same with present horizontal type device, in the test standpipe 7 water is housed, closed at both ends adds interior pressure, so that the real work situation of simulation standpipe in the deep-sea.
Fig. 2 is near the torture test synoptic diagram of simulation standpipe bottom mud face contact area.It is that rigidity upper plate 2 is fixed on vertical pylon 1 middle and lower part, and concrete height is determined according to standpipe length and test needs.The same with the riser upper fatigue experimental device, it connects top acting cylinder 3,4 in the bottom of rigidity upper plate 2, and acting cylinder 3,4 is arranged side by side, and its piston-rod lower end is hinged on the rigid connecting fishplate bar 5.Difference is that rigid connecting fishplate bar 5 lower ends are not to be fixedly connected with test standpipe 7 by standpipe pullover 6, but pass through a connecting link 10 hinged test standpipes 7.Certainly, also can be to utilize standpipe pullover 6 hinged test standpipes 7.
In above-mentioned two embodiment, also can be without standpipe pullover 6 or connecting link 10, but directly by the affixed or hinged test standpipe 7 in rigid connecting fishplate bar 5 lower ends.
As shown in Figure 2, simulation standpipe bottom also has a difference to be in the torture test of mud face contact area, the other end of test standpipe 7 is not to be supported by bottom acting cylinder 8, but extend in the horizontal husky groove 11, and fixing by the stationary installation 12 that is positioned at horizontal husky groove 11 other ends.Sand is put in horizontal husky groove 11 inside, and water is with the Reality simulation sea situation.
Test structure shown in Figure 2 mainly acts on test standpipe 7 by top acting cylinder 3 and 4, and top acting cylinder 3 and 4 both can have been simulated near the elevating movement of standpipe touchdown point, can simulate again near the tangential movement of standpipe touchdown point.In the test standpipe 7 water is housed, closed at both ends adds interior pressure, with the real work situation of simulation standpipe in the deep-sea.Test standpipe 7 is hinged on the below of top acting cylinder 3 and 4, and extend in the husky groove, thereby near the cyclic shift of simulation standpipe touchdown point.
Top acting cylinder 3,4 among the present invention, bottom acting cylinder 8, horizontal force cylinder 9 is controlled by servo control mechanism, wherein to top acting cylinder 3 and 4 alternating force of certain probability distribution in addition, thereby provide the moment of flexure of alternative cycle in the upper end of standpipe, control parameters, thereby obtain the fatigue lifetime of different situation lower standing tubes.Top acting cylinder 3,4, bottom acting cylinder 8, horizontal force cylinder 9 all can be hydraulic cylinder, control the power of each acting cylinder with hydraulic servo.
Claims (10)
1. vertical-type fatigue test device used for vertical tube, it is characterized in that: it comprises a vertical pylon, on vertical pylon, laterally fix a rigidity upper plate, two top acting cylinders all are connected to the base of acting cylinder the bottom of described rigidity upper plate, the piston rod external part of two described top acting cylinders all is hinged to a rigid connecting fishplate bar, and described rigid connecting fishplate bar lower end is fixedly connected with the test standpipe; The lower end of described test standpipe is by the piston rod support and connection of a bottom acting cylinder, and the base of described bottom acting cylinder is fixed on the described vertical pylon; On the described vertical pylon corresponding with test position, standpipe middle and lower part, fix a horizontal force cylinder, the piston rod of horizontal force cylinder is conflicted in telescopic process on the described test standpipe.
2. a kind of vertical-type fatigue test device used for vertical tube as claimed in claim 1, it is characterized in that: described top acting cylinder, bottom acting cylinder and horizontal force cylinder are controlled by servo control mechanism, wherein to the described top acting cylinder alternating force of certain probability distribution in addition.
3. a kind of vertical-type fatigue test device used for vertical tube as claimed in claim 1 or 2, it is characterized in that: described top acting cylinder, bottom acting cylinder and horizontal force cylinder are hydraulic cylinder.
4. a kind of vertical-type fatigue test device used for vertical tube as claimed in claim 1 or 2 is characterized in that: described rigid connecting fishplate bar lower end is fixedly connected with described test standpipe by a standpipe is pullover.
5. a kind of vertical-type fatigue test device used for vertical tube as claimed in claim 3 is characterized in that: described rigid connecting fishplate bar lower end is fixedly connected with described test standpipe by a standpipe is pullover.
6. vertical-type fatigue test device used for vertical tube, it is characterized in that: it comprises a vertical pylon, on vertical pylon, laterally fix a rigidity upper plate, two top acting cylinders all are connected to the base of acting cylinder the bottom of described rigidity upper plate, the piston rod external part of two described top acting cylinders all is hinged to a rigid connecting fishplate bar, the hinged test standpipe in described rigid connecting fishplate bar lower end; The other end of described test standpipe extend in the horizontal husky groove, and is fixed by the stationary installation that is positioned at the horizontal husky groove other end; Be placed with sand, water in the described horizontal husky groove.
7. a kind of vertical-type fatigue test device used for vertical tube as claimed in claim 6, it is characterized in that: described top acting cylinder is controlled by servo control mechanism, wherein to the described top acting cylinder alternating force of certain probability distribution in addition.
8. such as claim 6 or 7 described a kind of vertical-type fatigue test device used for vertical tubes, it is characterized in that: described top acting cylinder is hydraulic cylinder.
9. such as claim 6 or 7 described a kind of vertical-type fatigue test device used for vertical tubes, it is characterized in that: the lower end of described rigid connecting fishplate bar is by the hinged described test standpipe of a connecting link.
10. a kind of vertical-type fatigue test device used for vertical tube as claimed in claim 8 is characterized in that: the lower end of described rigid connecting fishplate bar is by the hinged described test standpipe of a connecting link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010606154 CN102095630B (en) | 2010-12-15 | 2010-12-15 | Vertical-type fatigue test device used for vertical tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010606154 CN102095630B (en) | 2010-12-15 | 2010-12-15 | Vertical-type fatigue test device used for vertical tube |
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| CN102095630A CN102095630A (en) | 2011-06-15 |
| CN102095630B true CN102095630B (en) | 2013-05-29 |
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| CN 201010606154 Expired - Fee Related CN102095630B (en) | 2010-12-15 | 2010-12-15 | Vertical-type fatigue test device used for vertical tube |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104931285B (en) * | 2015-06-02 | 2017-08-04 | 中国海洋石油总公司 | A kind of vertical standpipe principle prototype experimental rig of Free Station |
| CN106092751A (en) * | 2016-06-24 | 2016-11-09 | 江苏蓝潮海洋风电工程建设有限公司 | A kind of high-pressure hose fatigue machine |
| CN107389480A (en) * | 2017-08-31 | 2017-11-24 | 中国海洋大学 | A kind of ocean compliant riser multiaxle fatigue experimental device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201096685Y (en) * | 2007-11-15 | 2008-08-06 | 中国石油天然气集团公司 | A continuous pipe fatigue testing clamping device |
| US9388642B2 (en) * | 2008-03-05 | 2016-07-12 | Schlumberger Technology Corporation | Flexible pipe fatigue monitoring below the bend stiffener of a flexible riser |
| CN101750248A (en) * | 2008-12-11 | 2010-06-23 | 天水红山试验机有限公司 | Multipoint loading fatigue tester controlled by microcomputer |
| CN102087183B (en) * | 2010-12-02 | 2013-05-29 | 中国海洋石油总公司 | Fatigue experiment device for deepwater stand pipe |
| CN202033245U (en) * | 2010-12-15 | 2011-11-09 | 中国海洋石油总公司 | Vertical fatigue testing device for riser |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Patentee after: Shanghai Jiao Tong University Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center Patentee before: Shanghai Jiao Tong University |
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Granted publication date: 20130529 Termination date: 20151215 |
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