CN102901560A - Safe comprehensive monitoring system for structure of offshore jacket platform - Google Patents
Safe comprehensive monitoring system for structure of offshore jacket platform Download PDFInfo
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Abstract
The invention relates to a safe comprehensive monitoring system for a structure of an offshore jacket platform, belonging to the technical field of platform safety monitoring. The safe comprehensive monitoring system for the structure of the offshore jacket platform is characterized in that the comprehensive monitoring system comprises a visual display, a signal receiving module, a data comprehensive processing module, a strain monitoring system and a vibration monitoring system, wherein an FBG (Fiber Bragg Grating) strain sensor of the strain monitoring system is connected to a signal demodulation unit through a transmission optical cable; the signal demodulation unit is connected with a signal transmission device; an acceleration sensor of the vibration monitoring system is connected with a signal processing unit through a transmission cable; the signal processing unit is connected with the signal transmission device; a strain monitoring system signal and a vibration monitoring system signal are received by the data comprehensive processing module through the signal receiving module; and after data comprehensive processing is performed, a processing result is displayed on a visual display interface. The safe comprehensive monitoring system has the advantages of high sensitivity, high stability, long service life, intuitive data result, real-time on-line monitoring, capability of fulfilling early warning and the like.
Description
Technical field
The invention belongs to the platform safety monitoring technical field, particularly relate to a kind of approach on offshore jacket platforms structural safety comprehensive monitor system.
Background technology
At present, approach on offshore jacket platforms is a class ocean engineering structure, and it provides the place of offshore operation and life for the development and utilization ocean resources.Ocean platform and jacket structure long service are in abominable marine environment, bear various load (such as wind load, seaway load, ice load etc.) from marine environment and the reciprocation of upper chunk and drilling-production equipment etc. self load, sometimes also will be subjected in addition the destruction of earthquake, typhoon, tsunami, boats and ships etc.The bearing capacity that these load produce and vibration can directly affect intensity and life-span and the kinetic characteristic of platform and jacket structure, even cause collapsing and toppling of platform, and consequence is very serious.
At present approach on offshore jacket platforms mainly takes two aspect measures to understand the platform situation, and the first regularly detects, and it two is to calculate assessment.Two kinds of measures mutually combine and have reflected to a certain extent the platform structure situation, but also exist significantly not enough.Regularly detect (detecting) large cost of difficulty especially under water high, all period interval are longer, limited coverage area, and the detection method that adopts is aided with the part Dynamic Non-Destruction Measurement mainly with being visually main; Calculating assessment is to adopt computer software to carry out the modeling computing, is a kind of inclined to one side theory and method, and adopts authenticity and the direct impact evaluation result of rationality (often being the most difficult clear and definite) of data in the modeling.Two kinds of measures are had nothing in common with each other, and mutually combine to reflect to a certain extent the platform structure situation.
Summary of the invention
The present invention provides a kind of approach on offshore jacket platforms structural safety comprehensive monitor system for solving the technical matters that exists in the known technology.
The purpose of this invention is to provide a kind of new technology that can monitor approach on offshore jacket platforms structural safety situation, can realize that stress, strained situation and the vibration of whole jacket and Deposition Situation to platform and integrally work condition, upper chunk carry out real time on-line monitoring, further diagnostic platform safety case reaches the approach on offshore jacket platforms structural safety comprehensive monitor system of the characteristics such as pre-alarm purpose.
The present invention relates to a kind of safety monitoring system for the approach on offshore jacket platforms structure, be based on the visual integration system of 3D of two kinds of monitoring technology.Integration system comprises two monitoring subsystems, is respectively strain monitoring system and vibration monitor system, to reach from the purpose of the safety case of upper chunk bearing capacity situation, jacket sedimentation situation and degree of impairment three aspects: multi-angle reflection platform.Integration system mainly comprises 3D visualization display interface, reception of wireless signals module, aggregation of data processing module, data result memory module, expert diagnosis module and particular platform structural simulation analytical database.The aggregation of data processing module adopts the wavelet transform signal disposal route, the pretreated result of sub-monitoring system is carried out overall treatment, and by the expert diagnosis module result of calculation is diagnosed, data and corresponding diagnostic result can be stored in the data result memory module by user's request, and are presented on the 3D visualization interface.Particular platform structural simulation database is used for Vibration Monitoring, Analyzing, ensures the monitoring result accuracy.
One of subsystem of integration system is the strain monitoring system, and the strain monitoring system is mainly based on the know-why of structural strain monitoring, and the strain variation situation by the monitoring of structures surface reflects platform top carrying situation of change and non-uniform settling situation.Subsystem comprises optical fiber FBG strain transducer, transmission cable, signal demodulation unit and wireless signal transmission.Can optical fiber FBG sensor adopts the encapsulation of titanium alloy substrate, when carrying out strain monitoring sensor is laid in jacket pile crown position, monitors single pile crown bearing capacity change situation, is used for judging whether it carries overweight, cause the platform jacket non-uniform settling.Each pile crown monitoring result is added and can reflect whole platform upper chunk bearing capacity change situation comprehensively.Optical fiber FBG sensor transfers to the signal that gathers the signal demodulation unit of subsystem through transmission cable, signal demodulation unit is separated the primary Calculation of mediation data to it, and by radio transmitting device the aggregation of data processing module that the primary Calculation result transfers to integration system is carried out the overall treatment analysis.
Another subsystem of integration system is vibration monitor system, vibration monitor system is based on the modal response analysis to whole platform structure, determine the threshold frequency injury tolerance of structure, and reflect the degree of impairment of jacket by the vibration frequency result of the measuring point that gathers, especially for the submerged structure of jacket.Subsystem comprises acceleration transducer, transmission cable, signal processing unit and wireless signal transmission.Acceleration transducer is installed in platform top, can continue to monitor the response of jacket under environmental load, transmission cable transfers to signal processing unit with the acceleration signal that records, signal processing unit degree of will speed up signal is converted into the vibration frequency signal with the intrinsic mode of waving of identification jacket, and the rough handling result carries out the overall treatment analysis through the aggregation of data processing module that radio transmitting device transfers to integration system.
The technical scheme that approach on offshore jacket platforms structural safety comprehensive monitor system of the present invention is taked is:
A kind of approach on offshore jacket platforms structural safety comprehensive monitor system is characterized in: comprehensive monitor system comprises visual display, signal receiving module, aggregation of data processing module, strain monitoring system and vibration monitor system; The strain monitoring system comprises optical fiber FBG strain transducer, transmission cable, signal demodulation unit and signal transmitting apparatus, and optical fiber FBG strain transducer connects signal demodulation unit through transmission cable, and signal demodulation unit connects signal transmitting apparatus; Vibration monitor system comprises acceleration transducer, transmission cable, signal processing unit and signal transmitting apparatus, and acceleration transducer connects signal processing unit through transmission cable, and signal processing unit connects signal transmitting apparatus; The aggregation of data processing module receives strain monitoring system and vibration monitor system signal by signal receiving module, carries out result being shown at the visualization display interface after aggregation of data processes.
Approach on offshore jacket platforms structural safety comprehensive monitor system of the present invention can also adopt following technical measures:
Described approach on offshore jacket platforms structural safety comprehensive monitor system is characterized in: comprehensive monitor system is provided with data result memory module and platform structural simulation analytical database.
Described approach on offshore jacket platforms structural safety comprehensive monitor system is characterized in: optical fiber FBG sensor adopts the encapsulation of titanium alloy substrate, when carrying out strain monitoring sensor is laid in jacket pile crown position, monitors single pile crown bearing capacity change situation.
Described approach on offshore jacket platforms structural safety comprehensive monitor system, be characterized in: optical fiber FBG sensor adopts the encapsulation of titanium alloy substrate, be arranged in the pile crown position of each spud leg, and apart from weld seam part at least more than the 50cm, the same absolute altitude place of each pile crown arranges two groups of four sensors.
Described approach on offshore jacket platforms structural safety comprehensive monitor system is characterized in: a temperature compensation sensor is installed at 8-12cm place, optical fiber FBG sensor below.
Described approach on offshore jacket platforms structural safety comprehensive monitor system, be characterized in: acceleration transducer is installed in platform top, the response of monitoring tube frame under environmental load, transmission cable transfers to signal processing unit with the acceleration signal that records, signal processing unit degree of will speed up signal is converted into the vibration frequency signal with the intrinsic mode of waving of identification jacket, and result transfers to the aggregation of data processing module through signal transmitting apparatus and carries out the overall treatment analysis.
Described approach on offshore jacket platforms structural safety comprehensive monitor system, be characterized in: signal receiving module is the wireless signal receiver structure, signal transmitting apparatus is the radio signal transmitter structure, and the wireless signal receiver structure receives the optical fiber FBG strain transducer data-signal that the radio signal transmitter structure sends.
Described approach on offshore jacket platforms structural safety comprehensive monitor system is characterized in: visual display has 3D visualization display interface.
Advantage and good effect that the present invention has are:
Approach on offshore jacket platforms structural safety comprehensive monitor system is owing to having adopted the brand-new technical scheme of the present invention, and compared with prior art, the present invention has following innovation and advantage:
1) strain monitoring technology and vibration monitoring are incorporated into together, multi-angle, comprehensive, real-time and accurately platform structure is monitored, and provide the real-time diagnosis result.
2) innovatively the light grating sensor is used for the offshore platform structure strain monitoring, utilize the advantages such as its high sensitivity, high stability, adverse environment resistant, anti-electromagnetic interference (EMI), long service life, can be better than traditional strain transducer, be more suitable for the Yu Haiyang environmental applications.
3) for a jacket submerged structure damage monitoring difficult problem, improve the accuracy of monitoring result, integration system has also been set up the sunykatuib analysis database of particular platform structure, by the SACS Finite Element Simulation Software platform structure is carried out the evaluation simulation, determine to cause the different reasons of platform natural frequency variation, cause the reason of platform damage.Result in the database can be used for judging the analysis of monitoring result, instructs the safe early warning of platform structure, is the further guarantee to the monitoring result accuracy.
4) the visual integration system of exploitation 3D interface, whole platform structure can be illustrated in the system interface by the 3D emulation technology, the user can directly read the data of each sensor in system, and the Graphic State that is reflected by these data, and is more vivid, lively, easily read and understand.
Description of drawings
Fig. 1 is approach on offshore jacket platforms structural safety comprehensive monitor system framed structure schematic diagram;
Fig. 2 is jacket platform field monitoring scheme of installation.
Among the figure, 1, acceleration transducer, 2, transmission cable, 3, vibration monitor system, 4, wireless signal transmission, 5, signal processing unit, 6, strain transducer, 7, temperature compensation sensor, 8, transmission cable, 9, strain monitoring system, 10, signal demodulation unit, 11, wireless signal transmission, 12, reception of wireless signals module, 13, the sunykatuib analysis database, 14, the aggregation of data processing module, 15, memory module, 16, display interface, 17, the expert diagnosis module.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
A kind of approach on offshore jacket platforms structural safety comprehensive monitor system comprises visual display, signal receiving module, aggregation of data processing module, data result memory module, expert diagnosis module and platform structural simulation analytical database, strain monitoring system and vibration monitor system; The strain monitoring system comprises optical fiber FBG strain transducer, transmission cable, signal demodulation unit and signal transmitting apparatus, and optical fiber FBG strain transducer connects signal demodulation unit through transmission cable, and signal demodulation unit connects signal transmitting apparatus; Vibration monitor system comprises acceleration transducer, transmission cable, signal processing unit and signal transmitting apparatus, and acceleration transducer connects signal processing unit through transmission cable, and signal processing unit connects signal transmitting apparatus; The aggregation of data processing module receives strain monitoring system and vibration monitor system signal by signal receiving module, carries out result being shown at the visualization display interface after aggregation of data processes.
Concrete mounting structure and the effect of the present embodiment:
Be illustrated in figure 1 as the general frame figure of system of the present invention, the present invention is based on the visual integration system of 3D of two kinds of monitoring technology, and Fig. 2 is jacket platform field monitoring scheme of installation.
In Fig. 2, integration system comprises two monitoring subsystems, be respectively strain monitoring system 9 and vibration monitor system 3, to reach from the purpose of the safety case of upper chunk bearing capacity situation, jacket sedimentation situation and degree of impairment three aspects: multi-angle reflection platform.Integration system mainly comprises 3D visualization display interface 16, reception of wireless signals module 12, aggregation of data processing module 14, data result memory module 15, expert diagnosis module 17 and particular platform structural simulation analytical database 13.
In Fig. 2, when carrying out platform jacket upper chunk bearing capacity and jacket settlement monitoring, the strain monitoring system comprises optical fiber FBG strain transducer 6, transmission cable 8, signal demodulation unit 10 and wireless signal transmission 11.During field monitoring, optical fiber FBG sensor adopts the encapsulation of titanium alloy substrate, and sensor is arranged in the pile crown position of each spud leg, and apart from the weld seam part at least more than the 50cm, the same absolute altitude place of each pile crown arranges two groups of four sensors, monitors single pile crown bearing capacity change situation.A temperature compensation sensor 7 is installed at the 10cm place below the distance strain transducer, is used for getting rid of temperature variation to the impact of sensor.Optical fiber FBG sensor transfers to the signal that gathers the signal demodulation unit of subsystem through transmission cable, signal demodulation unit is separated the primary Calculation of mediation data to it, and the primary Calculation result being transferred to the signal receiving module of integration system by radio transmitting device, signal receiving module passes to the aggregation of data processing module with the signal that receives and carries out the overall treatment analysis.Aggregation of data processing module in the integration system can be analyzed the stressed situation of change of each spud leg, and judge that by the expert diagnosis module it exceeds the safe range of bearing capacity or non-uniform settling, provide real-time diagnostic result, final form with data and figure is stored in data memory module and is presented on the 3D visualization interface, reads for the user.
When carrying out the platform jacket damage monitoring in Fig. 2, the vibration monitoring subsystem comprises acceleration transducer 1, transmission cable 2, signal processing unit 5 and wireless signal transmission 4.This subsystem is determined the threshold frequency injury tolerance of structure based on the modal response analysis to whole platform structure, and reflects the degree of impairment of jacket by the vibration frequency result of the measuring point that gathers, especially for the submerged structure of jacket.During field monitoring, acceleration transducer is installed on four angles, platform top by the mode of pasting, continue to monitor the response of jacket under environmental load, transmission cable transfers to signal processing unit with the acceleration signal that records, signal processing unit degree of will speed up signal is converted into the vibration frequency signal with the intrinsic mode of waving of identification jacket, the rough handling result transfers to the signal receiving module of integration system through radio transmitting device, signal receiving module passes to the aggregation of data processing module with the signal that receives and carries out the overall treatment analysis.The sunykatuib analysis database of particular platform structure is set in the integration system specially, by the SACS Finite Element Simulation Software platform structure is carried out the evaluation simulation, determine to cause the different reasons of platform natural frequency variation, cause the reason of platform damage.Compare and analyze with the field monitoring data, by the expert diagnosis module data in the simulated database and field measurement data are analyzed, provide structural damage whether diagnostic result, final form with data and figure is stored in data memory module and is presented on the 3D visualization interface, reads for the user.
In the various embodiments described above; each parts, facility position, Choice of Sensors, choosing all of structural simulation analysis software can change to some extent; on the basis of technical solution of the present invention; the improvement that individual component is carried out and equivalents, and the change of correlation parameter should not got rid of outside protection scope of the present invention.
Claims (8)
1. approach on offshore jacket platforms structural safety comprehensive monitor system, it is characterized in that: comprehensive monitor system comprises visual display, signal receiving module, aggregation of data processing module, strain monitoring system and vibration monitor system; The strain monitoring system comprises optical fiber FBG strain transducer, transmission cable, signal demodulation unit and signal transmitting apparatus, and optical fiber FBG strain transducer connects signal demodulation unit through transmission cable, and signal demodulation unit connects signal transmitting apparatus; Vibration monitor system comprises acceleration transducer, transmission cable, signal processing unit and signal transmitting apparatus, and acceleration transducer connects signal processing unit through transmission cable, and signal processing unit connects signal transmitting apparatus; The aggregation of data processing module receives strain monitoring system and vibration monitor system signal by signal receiving module, carries out result being shown at the visualization display interface after aggregation of data processes.
2. approach on offshore jacket platforms structural safety comprehensive monitor system according to claim 1, it is characterized in that: comprehensive monitor system is provided with data result memory module and platform structural simulation analytical database.
3. approach on offshore jacket platforms structural safety comprehensive monitor system according to claim 1 and 2, it is characterized in that: optical fiber FBG sensor adopts the encapsulation of titanium alloy substrate, when carrying out strain monitoring sensor is laid in jacket pile crown position, monitors single pile crown bearing capacity change situation.
4. approach on offshore jacket platforms structural safety comprehensive monitor system according to claim 1 and 2, it is characterized in that: optical fiber FBG sensor adopts the encapsulation of titanium alloy substrate, be arranged in the pile crown position of each spud leg, and at least more than the 50cm, the same absolute altitude place of each pile crown arranges two groups of four sensors apart from weld seam part.
5. approach on offshore jacket platforms structural safety comprehensive monitor system according to claim 4 is characterized in that: temperature compensation sensor of optical fiber FBG sensor below 8-12cm place installation.
6. approach on offshore jacket platforms structural safety comprehensive monitor system according to claim 1 and 2, it is characterized in that: acceleration transducer is installed in platform top, the response of monitoring tube frame under environmental load, transmission cable transfers to signal processing unit with the acceleration signal that records, signal processing unit degree of will speed up signal is converted into the vibration frequency signal with the intrinsic mode of waving of identification jacket, and result transfers to the aggregation of data processing module through signal transmitting apparatus and carries out the overall treatment analysis.
7. approach on offshore jacket platforms structural safety comprehensive monitor system according to claim 1 and 2, it is characterized in that: signal receiving module is the wireless signal receiver structure, signal transmitting apparatus is the radio signal transmitter structure, and the wireless signal receiver structure receives optical fiber FBG strain transducer data-signal and the acceleration transducer data-signal that the radio signal transmitter structure sends.
8. approach on offshore jacket platforms structural safety comprehensive monitor system according to claim 1 and 2, it is characterized in that: visual display has 3D visualization display interface.
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| CN103245326A (en) * | 2013-05-21 | 2013-08-14 | 天津亿利科能源科技发展股份有限公司 | Device and method for monitoring subsidence of jacket platform based on inclination angle monitoring |
| CN103398860A (en) * | 2013-07-26 | 2013-11-20 | 天津亿利科能源科技发展股份有限公司 | Method for monitoring safety of ocean platform on basis of displacement sensors |
| CN103792015A (en) * | 2014-02-12 | 2014-05-14 | 中南大学 | On-line monitoring method for temperature and strain in composite material autoclave solidification process |
| CN104121981A (en) * | 2014-08-15 | 2014-10-29 | 青岛科技大学 | Remote wireless vibration monitoring device applied to offshore jacket ocean platform |
| CN104374556A (en) * | 2014-11-10 | 2015-02-25 | 上海交通大学 | Jacket monitoring method |
| CN106812294A (en) * | 2016-12-14 | 2017-06-09 | 上海建工集团股份有限公司 | The intelligent bracket system and its installation and application of integral steel platform |
| CN107084678A (en) * | 2017-05-09 | 2017-08-22 | 上海交通大学 | A kind of novel ocean platform monitoring system |
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| CN103245326A (en) * | 2013-05-21 | 2013-08-14 | 天津亿利科能源科技发展股份有限公司 | Device and method for monitoring subsidence of jacket platform based on inclination angle monitoring |
| CN103398860A (en) * | 2013-07-26 | 2013-11-20 | 天津亿利科能源科技发展股份有限公司 | Method for monitoring safety of ocean platform on basis of displacement sensors |
| CN103398860B (en) * | 2013-07-26 | 2015-12-23 | 天津亿利科能源科技发展股份有限公司 | A kind of ocean platform safety monitoring method of deformation based sensor |
| CN103792015A (en) * | 2014-02-12 | 2014-05-14 | 中南大学 | On-line monitoring method for temperature and strain in composite material autoclave solidification process |
| CN104121981A (en) * | 2014-08-15 | 2014-10-29 | 青岛科技大学 | Remote wireless vibration monitoring device applied to offshore jacket ocean platform |
| CN104374556A (en) * | 2014-11-10 | 2015-02-25 | 上海交通大学 | Jacket monitoring method |
| CN106812294A (en) * | 2016-12-14 | 2017-06-09 | 上海建工集团股份有限公司 | The intelligent bracket system and its installation and application of integral steel platform |
| CN107084678A (en) * | 2017-05-09 | 2017-08-22 | 上海交通大学 | A kind of novel ocean platform monitoring system |
| CN109110073A (en) * | 2017-06-23 | 2019-01-01 | 上海交通大学 | Method for early warning, device and the equipment of marine floating type works parameter resonance movement |
| CN108414201A (en) * | 2018-03-06 | 2018-08-17 | 西南石油大学 | A kind of ocean platform derrick monitoring of working condition and fatigue life predicting system |
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| CN111060183B (en) * | 2019-12-13 | 2021-06-25 | 天津大学 | Method for measuring total weight of upper module of ocean platform |
| CN111188597A (en) * | 2019-12-31 | 2020-05-22 | 中国海洋石油集团有限公司 | Safety monitoring system and method for marine riser in soft suspension state |
| CN111188597B (en) * | 2019-12-31 | 2022-03-15 | 中国海洋石油集团有限公司 | Safety monitoring system and method for marine riser in soft suspension state |
| CN111595423A (en) * | 2020-05-14 | 2020-08-28 | 中海石油（中国）有限公司天津分公司 | Real-time monitoring system for weight of offshore platform upper module |
| CN112325925A (en) * | 2020-09-21 | 2021-02-05 | 中海石油深海开发有限公司 | Health monitoring system for marine jacket platform structure |
| CN112378460A (en) * | 2020-12-21 | 2021-02-19 | 中山艾尚智同信息科技有限公司 | Intelligent monitoring system for safety of cement-based floating structure |
| CN113074807A (en) * | 2021-03-18 | 2021-07-06 | 中国水产科学研究院黄海水产研究所 | Real-time monitoring system for vibration and deformation of cultivation fence facility structure |
| CN114412722A (en) * | 2021-12-28 | 2022-04-29 | 哈尔滨工程大学 | Safety comprehensive monitoring system for offshore floating type fan platform |
| CN114412722B (en) * | 2021-12-28 | 2024-09-20 | 哈尔滨工程大学 | Marine floating fan platform safety integrated monitoring system |
| CN114544040A (en) * | 2022-02-16 | 2022-05-27 | 江苏科技大学 | Pile group node stress monitoring system based on neural network algorithm and early warning method thereof |
| CN114544040B (en) * | 2022-02-16 | 2024-01-23 | 江苏科技大学 | Pile group node stress monitoring system based on neural network algorithm and early warning method thereof |
| CN116305489A (en) * | 2023-04-11 | 2023-06-23 | 北京云庐科技有限公司 | Method, system and medium for monitoring structural damage of building |
| CN116305489B (en) * | 2023-04-11 | 2024-07-12 | 北京云庐科技有限公司 | Method, system and medium for monitoring structural damage of building |
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Application publication date: 20130130 |