CN204297024U - A kind of fatigue test device of ocean platform - Google Patents
A kind of fatigue test device of ocean platform Download PDFInfo
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- CN204297024U CN204297024U CN201420607425.4U CN201420607425U CN204297024U CN 204297024 U CN204297024 U CN 204297024U CN 201420607425 U CN201420607425 U CN 201420607425U CN 204297024 U CN204297024 U CN 204297024U
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Abstract
The utility model discloses a kind of fatigue test device of ocean platform, it comprises offshore platform structure model, four layers of annular steel plate, host computer, sensor, offshore platform structure model is placed on the home position of four layers of annular steel plate, these four layers of annular steel plates are followed successively by from bottom to up: pedestal, ocean current layer experiment table, wave layer experiment table, sea wind layer experiment table, every layer is connected with other layer at circumferentially equally distributed steel column by four of outside, ocean current layer experiment table, wave layer experiment table, this three layers every layer of sea wind layer experiment table arranges location and installation hole and this location and installation hole one_to_one corresponding of three layers at circumferencial direction every 22.5 degree, at ocean current layer experiment table, wave layer experiment table, the location and installation hole of sea wind layer experiment table is placed respectively ocean current layer PTO, wave layer PTO, sea wind layer PTO, the real time detection signal of PC control PTO and pick-up transducers also processes.
Description
Technical field
The utility model belongs to the technical field that marine energy utilizes, and relates to a kind of fatigue test device of ocean platform particularly.
Background technology
Now, energy problem has become a global problem, and oil is as the most crucial strategic resources most important thing especially.Although China's land surface is vast, but output peak value has been crossed in the exploitation of onshore oil field all, most onshore oil field yield has exceeded 70% of workable reserves, along with the exploitation of continental platform hydrocarbon resources spends golden period, the development of resources towards marine field has progressively become the inexorable trend of world today's offshore petroleum industry development.Therefore as the basic facility that ocean resources exploitation utilizes, the construction of ocean platform and detection technique receive increasing concern.
Ocean platform is the basic facility of marine development of resources, is also the base of offshore production operation and life, and therefore the safety problem of ocean platform is also the primary factor in Offshore Platform Design.Environment residing for offshore platform structure is very complicated and severe, and the superiors have sea wind to attack, and there is sea laps in middle layer, and the bottom has ocean current to corrode, at its many-sided degradation resistance affecting Offshore Platform Under structure clearly.The failure damage of offshore platform structure, not only can cause direct heavy economic losses and casualties, also may cause serious environmental pollution and social influence, and the actual time safety detection therefore for ocean platform just seems most important.The utility model is that a set of fatigue test device of design detects offshore platform model and analyzes, thus provides corresponding empirical theory support for the safety detection of real ocean platform and accident diagnosis.
Summary of the invention
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of fatigue test device of ocean platform is provided, it can detect offshore platform model and analyze, thus provides corresponding empirical theory support for the safety detection of real ocean platform and accident diagnosis.
Technical solution of the present utility model is: the fatigue test device of this ocean platform, and it comprises according to the scaled offshore platform structure model of the ocean platform of reality, four layers of annular steel plate, host computer, sensor, offshore platform structure model is placed on the home position of four layers of annular steel plate, these four layers of annular steel plates are followed successively by from bottom to up: pedestal, ocean current layer experiment table, wave layer experiment table, sea wind layer experiment table, every layer is connected with other layer at circumferentially equally distributed steel column by four of outside, pedestal is fixed to ground by the pedestal mounting hole on it, ocean current layer experiment table, wave layer experiment table, this three layers every layer of sea wind layer experiment table arranges location and installation hole and this location and installation hole one_to_one corresponding of three layers at circumferencial direction every 22.5 degree, the location and installation hole of ocean current layer experiment table is placed ocean current layer PTO, the location and installation hole of wave layer experiment table is placed wave layer PTO, the location and installation hole of sea wind layer experiment table is placed sea wind layer PTO, sensor setting is on offshore platform structure model and four layers of annular steel plate, PC control ocean current layer PTO, wave layer PTO, sea wind layer PTO, and the real time detection signal of pick-up transducers processing.
Because ocean current layer PTO, wave layer PTO, sea wind layer PTO can select installation site freely according to the position in location and installation hole, the change at the ripple of Various Seasonal, wave, stream phasing degree is simulated by angle combinations different between every layer of PTO, so can detect offshore platform model and analyze, thus provide corresponding empirical theory support for the safety detection of real ocean platform and accident diagnosis.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fatigue test device according to ocean platform of the present utility model;
Fig. 2 is the structural representation of the ocean current layer PTO of fatigue test device according to ocean platform of the present utility model;
Fig. 3 is the structural representation of the wave layer PTO of fatigue test device according to ocean platform of the present utility model;
Fig. 4 is the structural representation of the sea wind layer PTO of fatigue test device according to ocean platform of the present utility model.
Embodiment
As shown in Figure 1, the fatigue test device of this ocean platform, it comprises offshore platform structure model 5, four layer annular steel plate, host computer, the sensor scaled according to the ocean platform of reality, offshore platform structure model is placed on the home position of four layers of annular steel plate, these four layers of annular steel plates are followed successively by from bottom to up: pedestal 1, ocean current layer experiment table 2, wave layer experiment table 3, sea wind layer experiment table 4, every layer is connected with other layer at circumferentially equally distributed steel column 10 by four of outside, pedestal is fixed to ground by the pedestal mounting hole on it, ocean current layer experiment table, wave layer experiment table, this three layers every layer of sea wind layer experiment table arranges location and installation hole 6 and this location and installation hole one_to_one corresponding of three layers at circumferencial direction every 22.5 degree, the location and installation hole of ocean current layer experiment table is placed ocean current layer PTO 9, the location and installation hole of wave layer experiment table is placed wave layer PTO 8, the location and installation hole of sea wind layer experiment table is placed sea wind layer PTO 7, sensor setting is on offshore platform structure model and four layers of annular steel plate, PC control ocean current layer PTO, wave layer PTO, sea wind layer PTO, and the real time detection signal of pick-up transducers processing.
Because ocean current layer PTO, wave layer PTO, sea wind layer PTO can select installation site freely according to the position in location and installation hole, the change at the ripple of Various Seasonal, wave, stream phasing degree is simulated by angle combinations different between every layer of PTO, so can detect offshore platform model and analyze, thus provide corresponding empirical theory support for the safety detection of real ocean platform and accident diagnosis.
In addition, the quantity of pedestal mounting hole is four, is circumferentially being uniformly distributed.
In addition, this three layers every layer of ocean current layer experiment table, wave layer experiment table, sea wind layer experiment table arranges three location and installation holes 6 at circumferencial direction every 22.5 degree, and these three location and installation pore size distributions are equilateral triangle.
In addition, as shown in Figure 2, ocean current layer PTO is constant force hydraulic means, it comprises filtrator 81, unidirectional quantitative hydraulic pump 82, three-position four-way electromagnetic directional valve 88, single-acting formula hydraulic cylinder 814, hydraulic oil in quantitative hydraulic pump performance loop enters in this loop through filter, the left position work of three-position four-way electromagnetic directional valve, cause single-acting formula hydraulic cylinder works and export a constant force, the right position work of three-position four-way electromagnetic directional valve after single-acting formula hydraulic cylinder works completes, performance loop has unloaded one-off.
In addition, as shown in Figure 3, wave layer PTO is sinusoidal hydraulic means, and it comprises filtrator 81, unidirectional quantitative hydraulic pump 82, direct-acting overflow valve 83, first solenoid directional control valve 84, second solenoid directional control valve 813, pilot operated compound relief valve 85, proportional pressure control valve 86, current amplifier 87, three-position four-way electromagnetic directional valve 88, first pressure switch 89, second pressure switch 810, stroke valve 811, flow speed control valve 812, single-acting formula hydraulic cylinder 814, retaining valve 815, when being in F.F. mode of operation, hydraulic oil during oil-feed in fuel tank enters the left chamber of single-acting formula hydraulic cylinder through filtrator, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve, during oil return hydraulic oil through the right chamber of single-acting formula hydraulic cylinder, the left chamber of stroke valve, three-position four-way electromagnetic directional valve, single-acting formula hydraulic cylinder, direct-acting overflow valve is as safety valve, when being in slow-motion mode of operation, hydraulic oil during oil-feed in fuel tank enters the left chamber of single-acting formula hydraulic cylinder through filtrator, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve, and during oil return, hydraulic oil enters flow speed control valve, fuel tank through the right chamber of single-acting formula hydraulic cylinder, when being in work and entering mode of operation, after the piston rod of single-acting formula hydraulic cylinder arrives beaer, the left chamber of single-acting formula hydraulic cylinder is overstock, first pressure switch action, current signal inputs through current amplifier, first, second solenoid directional control valve is the next respectively, the work of right position, hydraulic oil during oil-feed in fuel tank is through filtrator, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve enters the left chamber of single-acting formula hydraulic cylinder, during oil return, hydraulic oil enters the second solenoid directional control valve through the right chamber of single-acting formula hydraulic cylinder, fuel tank, the remote control mouth of pilot operated compound relief valve is connected to proportional pressure control valve, the oil pressure relief of direct-acting overflow valve is regulated to be greater than the oil pressure relief of pilot operated compound relief valve, first, second solenoid directional control valve is respectively in bottom, the work of right position, when being in rewind mode of operation, hydraulic oil during oil-feed in fuel tank is through filtrator, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve, retaining valve enters the right chamber of single-acting formula hydraulic cylinder, during oil return, hydraulic oil enters three-position four-way electromagnetic directional valve through the left chamber of single-acting formula hydraulic cylinder, fuel tank, the remote control mouth of pilot operated compound relief valve and proportional pressure control valve disconnect, first, second solenoid directional control valve is respectively upper, the work of left position, after piston rod returns original position, the right chamber of single-acting formula hydraulic cylinder is overstock, second pressure switch action, sinusoidal hydraulic means quits work, return to virgin state.
Particularly, this sinusoidal hydraulic means has four kinds of mode of operations, i.e. F.F., slow-motion, work are entered, backward mode.Sinusoidal hydraulic means according to Fig. 3, detailed duty is as follows:
A. F.F.: press start button, electromagnet 1YA is energized, and three position four-way directional control valve 88 left position work, forms differential circuit to realize F.F..
In-line: the left chamber of fuel tank → filtrator 81 → unidirectional quantitative hydraulic pump 82 → three position four-way directional control valve 88 → hydraulic cylinder 814
Oil return line: the right chamber of hydraulic cylinder → left chamber of stroke valve 811 → three position four-way directional control valve 88 → hydraulic cylinder
In this F.F. process, surplus valve 83 plays safety valve effect, owing to adopting fixed displacement pump, so hydraulic cylinder piston rod at the uniform velocity advances.
B. slow-motion: when hydraulic cylinder piston rod reaches predetermined stroke, depression stroke valve 811, its right position work.
In-line: the left chamber of fuel tank → filtrator 81 → unidirectional quantitative hydraulic pump 82 → three position four-way directional control valve 88 → hydraulic cylinder
Oil return line: hydraulic cylinder right chamber → flow speed control valve 812 → fuel tank
Because the effect of flow speed control valve realizes slow-motion.
C. work is entered: after hydraulic cylinder piston rod arrives beaer, and the left chamber of hydraulic cylinder is overstock, the first pressure switch 89 action, now 3YA, 4YA action simultaneously, I current signal inputs through current amplifier, and first, second solenoid directional control valve 84,813 is the work of the next, right position respectively.For ensureing that P place pressure can regulate, under the condition ensureing oil circuit safety, direct-acting overflow valve 83 oil pressure relief is regulated to be greater than the oil pressure relief of pilot operated compound relief valve 85 all the time.
In-line: the left chamber of fuel tank → filtrator 1 → unidirectional quantitative hydraulic pump 82 → three position four-way directional control valve 88 → hydraulic cylinder
Oil return line: right chamber → the second solenoid directional control valve of hydraulic cylinder 813 → fuel tank
When work is entered, P place pressure is determined by surplus valve 85,85 is pilot operated compound relief valve, its set pressure is determined by the switching value size of its pilot valve, the remote control mouth of surplus valve 85 is connected to proportional pressure control valve 86, input current carrys out the spillway discharge size of operation valve 86 thus the spillway discharge size of operation valve 85 through current amplifier, finally reaches the object regulating P place pressure, and we can obtain the pressure of the continuous change that hydraulic cylinder exports by the change of programming Control electric current like this.
D. rewind: press fast backward button, electromagnet 2YA is energized, 3YA power-off, 4YA power-off, three position four-way directional control valve 88 right position work, and the second reversal valve 813 left position work, the upper work of the first reversal valve 84, now, remote control mouth and the proportional pressure control valve 86 of surplus valve 85 disconnect.
In-line: the right chamber of fuel tank → filtrator 81 → unidirectional quantitative hydraulic pump 82 → three position four-way directional control valve 88 → retaining valve, 815 → hydraulic cylinder
Oil return line: hydraulic cylinder left chamber → three position four-way directional control valve 88 → fuel tank
After piston rod returns original position, the right chamber of hydraulic cylinder is overstock, and the second pressure switch 810 action, whole device quits work, and returns to virgin state, system unloaded.
In addition, as shown in Figure 4, sea wind layer PTO is surging force pneumatic means, and it comprises gas motor 71, solenoid directional control valve 72, pressure switch 73, cylinder 74, after unlatching, the left position work of solenoid directional control valve, gas motor operations is the pressurization of whole performance loop simultaneously, pressure switch work when the pressure reaches a predetermined value, cylinder is caused to export a controlled surging force instantaneously, then the work of right position changed to by solenoid directional control valve, and whole performance loop unloading, completes one-off.
In addition, sensor comprises strain rosette, heat sensitive sensor, acoustic emission detector.The particular location of each sensor is not fixed, and can experimentally require to carry out free arrangement.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong to the protection domain of technical solutions of the utility model.
Claims (7)
1. a fatigue test device for ocean platform, is characterized in that: it comprises according to the scaled offshore platform structure model (5) of the ocean platform of reality, four layers of annular steel plate, host computer, sensor, offshore platform structure model is placed on the home position of four layers of annular steel plate, these four layers of annular steel plates are followed successively by from bottom to up: pedestal (1), ocean current layer experiment table (2), wave layer experiment table (3), sea wind layer experiment table (4), every layer is connected with other layer at circumferentially equally distributed steel column (10) by four of outside, pedestal is fixed to ground by the pedestal mounting hole on it, ocean current layer experiment table, wave layer experiment table, this three layers every layer of sea wind layer experiment table arranges location and installation hole (6) and this location and installation hole one_to_one corresponding of three layers at circumferencial direction every 22.5 degree, ocean current layer PTO (9) is placed in the location and installation hole of ocean current layer experiment table, wave layer PTO (8) is placed in the location and installation hole of wave layer experiment table, sea wind layer PTO (7) is placed in the location and installation hole of sea wind layer experiment table, sensor setting is on offshore platform structure model and four layers of annular steel plate, PC control ocean current layer PTO, wave layer PTO, sea wind layer PTO, and the real time detection signal of pick-up transducers processing.
2. the fatigue test device of ocean platform according to claim 1, is characterized in that: the quantity of described pedestal mounting hole is four, is circumferentially being uniformly distributed.
3. the fatigue test device of ocean platform according to claim 1 and 2, it is characterized in that: this three layers every layer of described ocean current layer experiment table, wave layer experiment table, sea wind layer experiment table arranges three location and installation holes (6) at circumferencial direction every 22.5 degree, and these three location and installation pore size distributions are equilateral triangle.
4. the fatigue test device of ocean platform according to claim 1, it is characterized in that: described ocean current layer PTO is constant force hydraulic means, it comprises filtrator (81), unidirectional quantitative hydraulic pump (82), three-position four-way electromagnetic directional valve (88), single-acting formula hydraulic cylinder (814), hydraulic oil in quantitative hydraulic pump performance loop enters in this loop through filter, the left position work of three-position four-way electromagnetic directional valve, cause single-acting formula hydraulic cylinder works and export a constant force, the right position work of three-position four-way electromagnetic directional valve after single-acting formula hydraulic cylinder works completes, performance loop has unloaded one-off.
5. the fatigue test device of ocean platform according to claim 1, it is characterized in that: described wave layer PTO is sinusoidal hydraulic means, it comprises filtrator (81), unidirectional quantitative hydraulic pump (82), direct-acting overflow valve (83), first solenoid directional control valve (84), second solenoid directional control valve (813), pilot operated compound relief valve (85), proportional pressure control valve (86), current amplifier (87), three-position four-way electromagnetic directional valve (88), first pressure switch (89), second pressure switch (810), stroke valve (811), flow speed control valve (812), single-acting formula hydraulic cylinder (814), retaining valve (815), when being in F.F. mode of operation, hydraulic oil during oil-feed in fuel tank enters the left chamber of single-acting formula hydraulic cylinder through filtrator, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve, during oil return hydraulic oil through the right chamber of single-acting formula hydraulic cylinder, the left chamber of stroke valve, three-position four-way electromagnetic directional valve, single-acting formula hydraulic cylinder, direct-acting overflow valve is as safety valve, when being in slow-motion mode of operation, hydraulic oil during oil-feed in fuel tank enters the left chamber of single-acting formula hydraulic cylinder through filtrator, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve, and during oil return, hydraulic oil enters flow speed control valve, fuel tank through the right chamber of single-acting formula hydraulic cylinder, when being in work and entering mode of operation, after the piston rod of single-acting formula hydraulic cylinder arrives beaer, the left chamber of single-acting formula hydraulic cylinder is overstock, first pressure switch action, current signal inputs through current amplifier, first, second solenoid directional control valve is the next respectively, the work of right position, hydraulic oil during oil-feed in fuel tank is through filtrator, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve enters the left chamber of single-acting formula hydraulic cylinder, during oil return, hydraulic oil enters the second solenoid directional control valve through the right chamber of single-acting formula hydraulic cylinder, fuel tank, the remote control mouth of pilot operated compound relief valve is connected to proportional pressure control valve, the oil pressure relief of direct-acting overflow valve is regulated to be greater than the oil pressure relief of pilot operated compound relief valve, first, second solenoid directional control valve is respectively in bottom, the work of right position, when being in rewind mode of operation, hydraulic oil during oil-feed in fuel tank is through filtrator, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve, retaining valve enters the right chamber of single-acting formula hydraulic cylinder, during oil return, hydraulic oil enters three-position four-way electromagnetic directional valve through the left chamber of single-acting formula hydraulic cylinder, fuel tank, the remote control mouth of pilot operated compound relief valve and proportional pressure control valve disconnect, first, second solenoid directional control valve is respectively upper, the work of left position, after piston rod returns original position, the right chamber of single-acting formula hydraulic cylinder is overstock, second pressure switch action, sinusoidal hydraulic means quits work, return to virgin state.
6. the fatigue test device of ocean platform according to claim 1, it is characterized in that: described sea wind layer PTO is surging force pneumatic means, it comprises gas motor (71), solenoid directional control valve (72), pressure switch (73), cylinder (74), after unlatching, the left position work of solenoid directional control valve, gas motor operations is the pressurization of whole performance loop simultaneously, pressure switch work when the pressure reaches a predetermined value, cylinder is caused to export a controlled surging force instantaneously, then the work of right position changed to by solenoid directional control valve, whole performance loop unloading, complete one-off.
7. the fatigue test device of ocean platform according to claim 1, is characterized in that: described sensor comprises strain rosette, heat sensitive sensor, acoustic emission detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420607425.4U CN204297024U (en) | 2014-10-20 | 2014-10-20 | A kind of fatigue test device of ocean platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420607425.4U CN204297024U (en) | 2014-10-20 | 2014-10-20 | A kind of fatigue test device of ocean platform |
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| CN201420607425.4U Expired - Fee Related CN204297024U (en) | 2014-10-20 | 2014-10-20 | A kind of fatigue test device of ocean platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354829A (en) * | 2014-10-20 | 2015-02-18 | 中国海洋大学 | Fatigue testing device of ocean platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354829A (en) * | 2014-10-20 | 2015-02-18 | 中国海洋大学 | Fatigue testing device of ocean platform |
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Granted publication date: 20150429 Termination date: 20161020 |