CN205177152U - Pylon foundation structure monitoring system - Google Patents
Pylon foundation structure monitoring system Download PDFInfo
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- CN205177152U CN205177152U CN201520687487.5U CN201520687487U CN205177152U CN 205177152 U CN205177152 U CN 205177152U CN 201520687487 U CN201520687487 U CN 201520687487U CN 205177152 U CN205177152 U CN 205177152U
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Abstract
The utility model relates to a pylon foundation structure monitoring system, include: surveillance center, communications optical cable, site work station, optical fiber sensing system and electronic type sensing system, wherein the surveillance center includes fiber grating demodulation appearance, host computer, server, power, display and mouse, keyboard etc. The optical fiber sensing system includes fiber grating signal processor, transmission cable, splice tray and multiple on -the -spot fiber grating sensor, electronic type sensing system includes collection equipment, strainometer and optical fiber sensing 0. The system possesses following characteristics and advantage: hug closely the demand: automatic on -line monitoring subsides, meets an emergency, inclines, vibrates, provides the early -warning singal for guideing the booster stations safe operation, prevent because of too bigly subside, the condition such as slope, corruption influence platform normal operating, advanced technology: monitoring technology gives first place to with optic fibre, and monitor sensor does not completely receive the interference of electromagnetic field, and is corrosion -resistant, longe -lived, the expansibility: the system also can expand other structural parameters monitorings in the future.
Description
Technical field
The utility model relates to a kind of tower foundation structure monitoring system.
Background technology
Offshore wind farm pylon is the basis of wind-power electricity generation, and its safety is extremely important, once the conduit of platform, basis occur sedimentation, structural damage, inclination, very large economic loss will be caused.Therefore be necessary to carry out monitoring structural health conditions to blower fan pylon basis.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of tower foundation structure monitoring system, comprise: Surveillance center, communications optical cable, work on the spot station, optical fiber sensing system and electronic type sensor-based system, wherein Surveillance center comprises fiber Bragg grating (FBG) demodulator, main frame, server, power supply, display and mouse, keyboard, optical fiber sensing system comprises fiber Bragg grating signal processor, transmission cable, splice tray and various field fiber-optic grating sensor, and electronic type sensor-based system comprises collecting device, strainometer and accelerometer;
Further, described various field fiber-optic grating sensor comprises positive ladder corrosion sensor;
Further, described various field fiber-optic grating sensor comprises the fiber Bragg grating strain sensor of the ess-strain measuring pylon structure;
Further, described various field fiber-optic grating sensor comprises the fiber-optical grating temperature sensor measuring pylon structure temperature;
Further, described various field fiber-optic grating sensor comprises the optical fiber grating static water level measuring pylon structure sedimentation;
Further, described various field fiber-optic grating sensor comprises the angular transducer measuring pylon structure inclination angle;
Further, described various field fiber-optic grating sensor comprises the fiber Bragg grating type acceleration transducer measuring pylon structure vibration;
Further, the strainometer of described electronic type sensor-based system adopts resistance-type, is arranged on tower cylinder and batter post junction, platform and batter post junction, batter post and jacket junction, for measuring the damage that welding technology causes;
Further, described accelerometer is three axis accelerometer, is arranged on one of them leg of more than the water surface of jacket;
Further, described positive ladder corrosion sensor connects separately a collecting device, and this collecting device connects described work on the spot station, is connected to described Surveillance center by communications optical cable.
beneficial effect
Pylon structure monitoring system of the present utility model is due to the outdoor marine monitoring of data, and system possesses automatic monitoring feature, and all Monitoring Data can be real-time transmitted to land Surveillance center.Land Surveillance center can grasp the structural safety situation of platform, once recurring structure damage, system can realize early warning.
This system possesses following characteristics and advantage: be close to demand: tubularpH sensor sedimentation, strain, inclination, vibration, for instructing booster stations safe operation to provide early warning signal, prevents from normally running because the situations such as excessive sedimentation, inclination, corrosion affect platform; Advanced technology: based on fiber optic monitoring technology, monitoring sensor is not completely by the interference of electromagnetic field, and corrosion-resistant, the life-span is long; Extendability: system also can expand the monitoring of other structural parameters in the future.All monitoring sensors are and can access same system; Maturity: be the monitoring technology of advanced person, be applied in various fields, become the recommended technology of monitoring structural health conditions standard criterion.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, further feature of the present utility model and aspect will become clear.
Accompanying drawing explanation
Comprise in the description and form the accompanying drawing of a part for instructions and instructions together illustrates exemplary embodiment of the present utility model, characteristic sum aspect, and for explaining principle of the present utility model.
Fig. 1 is tower foundation structure monitoring system schematic diagram;
Each sensor connection diagram when Fig. 2 is single installation cross section;
Fig. 3 be Jie Mian ?the connection diagram of sensor between cross section.
Embodiment
The load that offshore wind turbine supporting construction is born mainly contains: the extreme loads such as the conventional load such as wind, wave, ocean current, ship berthing and floating thing shock, earthquake, typhoon, tsunami.
The failure mode of blower fan supporting construction mainly contains: crucial rod member reaches strength degree and causes structure partial or overall collapse; Key node produces fatigue crack; Wash away or soil around pile weak (by force) change cause the rigidity of supporting construction to change, its fundamental frequency exceeds specialized range; Supporting construction distortion is excessive and lost efficacy; Structural elements corrodes.
For above-mentioned failure mode, the Contents for Monitoring of blower fan supporting construction mainly contains: the strain of monitoring crucial rod member; The fatigue of monitoring key node; The vibration of monitoring supporting construction; The displacement of supporting construction, comprises sedimentation, horizontal shift, rotation displacement and torsional displacement etc.; The corrosion of district, fluctuation of water table district and atmospheric zone etc. under water.
Shown in accompanying drawing 1-3, tower foundation structure monitoring system of the present utility model, comprise: Surveillance center, communications optical cable, work on the spot station, optical fiber sensing system and electronic type sensor-based system, wherein Surveillance center comprises fiber Bragg grating (FBG) demodulator, main frame, server, power supply, display and mouse, keyboard, optical fiber sensing system comprises fiber Bragg grating signal processor, transmission cable, splice tray and various field fiber-optic grating sensor, electronic type sensor-based system comprises collecting device, strainometer and accelerometer, the data of optical fiber sensing system and the collection of electronic type sensor-based system are transferred to the fiber Bragg grating (FBG) demodulator of Surveillance center by communications optical cable, fiber Bragg grating (FBG) demodulator is set to multi-channel mode, as 16 passages, the wavelength signals of the sensor measurement of reception is resolved out, send the main frame of Surveillance center to, various wavelength signals is converted into the characteristic signal of measured physical quantity by main frame, real-time monitoring can be carried out to tower foundation structure, wherein multiple fiber-optic grating sensor data are the ess-strain of pylon, temperature, vibration, bottom sedimentation, inclination angle and degree of corrosion, main frame shows above-mentioned characteristic signal by display, and the characteristic signal setting value stored in itself and server is compared, the operating personnel of Surveillance center carry out the operation of being correlated with according to comparative result, carry out pylon structure maintenance as reported to the police or report pylon structure state to its upper-level leader, also keyboard and mouse etc. can be utilized to input correlation parameter.
Optical fiber sensing system comprises measures the ess-strain of pylon structure, temperature, vibration, bottom sedimentation, the isoparametric field optical fibers grating sensor of degree of corrosion and inclination angle.Adopt fiber Bragg grating strain sensor to be arranged on cross bar, the Xuan Ganchu of the larger pylon of stress ratio, the strain of pylon structure is monitored; Fiber-optical grating temperature sensor is adopted to measure the temperature of pylon structure, temperature is very large on the impact of structure, so its installation site and fiber Bragg grating strain sensor position adapt, a temperature sensor will be laid near each strain transducer, use as environment temperature monitoring on the one hand, use as strain transducer temperature compensation on the other hand; Adopt fiber Bragg grating type angular transducer, be arranged in the middle deck of pylon, monitoring platform tilts, and monitors the inclination of different aspects; Adopt optical fiber grating static water level, respectively arrange one at the corner place of the middle deck of pylon, sedimentation situation of each point of same platform can be monitored, identify abnormal sedimentation, as too fast in subsidence rate, local sedimentation etc.; Adopt fiber Bragg grating type acceleration transducer, the short transverse along tower cylinder arranges 4, to monitor real-time vibration, monitors the vibration frequency of each installation site of different aspects; Adopt positive ladder corrosion sensor to carry out the extent of corrosion of regular visit measurement pylon structure, in the server of Surveillance center, store the corrosion rate value of setting in advance, when the speed of actual monitoring exceedes this memory rate value, system alarm.
Electronic type sensor-based system comprises collecting device, strainometer and accelerometer, the wherein data of collecting device Real-time Collection strainometer and accelerometer measures, and be transferred to Surveillance center by work on the spot station, strainometer adopts resistance-type, be arranged on tower cylinder and batter post junction, platform and batter post junction and batter post and jacket junction, for measuring the damage that welding technology causes; Accelerometer is three axis accelerometer, is arranged on one of them leg of more than the water surface of jacket.
In addition, this positive ladder corrosion sensor also can connect separately a collecting device, and collecting device connects work on the spot station, is connected to Surveillance center by communications optical cable, thus measures the extent of corrosion of pylon structure.
For single installation cross section, sensor adopts and goes here and there and the mode combined, and optical cable employing diameter is the single mode armored optical cable of 6mm, and optical cable is through and is embedded in the pipeline of below ground, transmission for sensor between cross section-cross section adopts multicore communications optical cable, and the middle splice tray that adopts continues.
In this monitoring system, near same surface level or this surface level, sensor can be imbedded as at a controlling sections corrosion sensor and strain transducer, piling bar then surface is installed, the Grad that the equal poling of all the sensors cabling protects same cross section or conllinear monitoring point to be connected to form position can be used for early warning to use (early warning value 2%, alarming value 5%); This monitoring system can reach following technique effect:
All monitoring sensors access a monitoring platform;
The most I of data acquisition time reaches 1s;
Hard disk can store the data of 1 month;
System software can realize location, and interface can be checked all the sensors position and monitoring numerical value;
Visual display monitoring site and number;
Observation process is real time on-line monitoring;
Spot sensor realizes without pyroelectric monitor, and sensing, transmission want electromagnetism interference, also do not disturb other system simultaneously.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (10)
1. a tower foundation structure monitoring system, comprise: Surveillance center, communications optical cable, work on the spot station, optical fiber sensing system and electronic type sensor-based system, wherein Surveillance center comprises fiber Bragg grating (FBG) demodulator, main frame, server, power supply, display and mouse, keyboard, optical fiber sensing system comprises fiber Bragg grating signal processor, transmission cable, splice tray and various field fiber-optic grating sensor, and electronic type sensor-based system comprises collecting device, strainometer and accelerometer.
2. monitoring system according to claim 1, is characterized in that: described various field fiber-optic grating sensor comprises positive ladder corrosion sensor.
3. monitoring system according to claim 1, is characterized in that: described various field fiber-optic grating sensor comprises the fiber Bragg grating strain sensor of the ess-strain measuring pylon structure.
4. monitoring system according to claim 1, is characterized in that: described various field fiber-optic grating sensor comprises the fiber-optical grating temperature sensor measuring pylon structure temperature.
5. monitoring system according to claim 1, is characterized in that: described various field fiber-optic grating sensor comprises the optical fiber grating static water level measuring pylon structure sedimentation.
6. monitoring system according to claim 1, is characterized in that: described various field fiber-optic grating sensor comprises the angular transducer measuring pylon structure inclination angle.
7. monitoring system according to claim 1, is characterized in that: described various field fiber-optic grating sensor comprises the fiber Bragg grating type acceleration transducer measuring pylon structure vibration.
8. monitoring system according to claim 1, it is characterized in that: the strainometer of described electronic type sensor-based system adopts resistance-type, be arranged on tower cylinder and batter post junction, platform and batter post junction and batter post and jacket junction, for measuring the damage that welding technology causes.
9. monitoring system according to claim 8, is characterized in that: described accelerometer is three axis accelerometer, is arranged on one of them leg of more than the water surface of jacket.
10. monitoring system according to claim 2, is characterized in that: described positive ladder corrosion sensor connects separately a collecting device, and this collecting device connects described work on the spot station, is connected to described Surveillance center by communications optical cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520687487.5U CN205177152U (en) | 2015-09-07 | 2015-09-07 | Pylon foundation structure monitoring system |
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| CN201520687487.5U CN205177152U (en) | 2015-09-07 | 2015-09-07 | Pylon foundation structure monitoring system |
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| CN205177152U true CN205177152U (en) | 2016-04-20 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927023A (en) * | 2016-04-29 | 2016-09-07 | 国家电网公司 | Anticorrosion assemblage supporting mechanism system used for power supply system and having tilting early warning function |
| CN110160682A (en) * | 2019-06-17 | 2019-08-23 | 三一重能有限公司 | A kind of load monitoring system and method |
| CN110763276A (en) * | 2019-11-08 | 2020-02-07 | 陕西能源麟北发电有限公司 | Smoke tower unification steel construction intercooling tower health monitoring system |
| CN111750796A (en) * | 2020-07-01 | 2020-10-09 | 交通运输部公路科学研究所 | Bragg fiber grating static and dynamic automatic compensation type structural deformation monitoring system |
| CN112414455A (en) * | 2020-11-08 | 2021-02-26 | 华能通辽风力发电有限公司 | System and method for distinguishing deformation and foundation settlement of wind turbine tower |
| CN112985479A (en) * | 2021-02-09 | 2021-06-18 | 山东省科学院海洋仪器仪表研究所 | Real-time health condition monitoring system and method for ocean buoy communication antenna |
| CN113847945A (en) * | 2021-09-18 | 2021-12-28 | 上海电力设计院有限公司 | Health monitoring system and method for wind power tower barrel |
| WO2023092853A1 (en) * | 2021-11-26 | 2023-06-01 | 中国电力科学研究院有限公司 | Power transmission line photonics-electronics converged long-distance monitoring device and method |
| WO2023181217A1 (en) * | 2022-03-23 | 2023-09-28 | 日本電気株式会社 | Deterioration detection system, deterioration detection device, and deterioration detection method |
-
2015
- 2015-09-07 CN CN201520687487.5U patent/CN205177152U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927023A (en) * | 2016-04-29 | 2016-09-07 | 国家电网公司 | Anticorrosion assemblage supporting mechanism system used for power supply system and having tilting early warning function |
| CN110160682A (en) * | 2019-06-17 | 2019-08-23 | 三一重能有限公司 | A kind of load monitoring system and method |
| CN110763276A (en) * | 2019-11-08 | 2020-02-07 | 陕西能源麟北发电有限公司 | Smoke tower unification steel construction intercooling tower health monitoring system |
| CN111750796A (en) * | 2020-07-01 | 2020-10-09 | 交通运输部公路科学研究所 | Bragg fiber grating static and dynamic automatic compensation type structural deformation monitoring system |
| CN112414455A (en) * | 2020-11-08 | 2021-02-26 | 华能通辽风力发电有限公司 | System and method for distinguishing deformation and foundation settlement of wind turbine tower |
| CN112985479A (en) * | 2021-02-09 | 2021-06-18 | 山东省科学院海洋仪器仪表研究所 | Real-time health condition monitoring system and method for ocean buoy communication antenna |
| CN112985479B (en) * | 2021-02-09 | 2022-07-08 | 山东省科学院海洋仪器仪表研究所 | Real-time health condition monitoring system and method for ocean buoy communication antenna |
| CN113847945A (en) * | 2021-09-18 | 2021-12-28 | 上海电力设计院有限公司 | Health monitoring system and method for wind power tower barrel |
| WO2023092853A1 (en) * | 2021-11-26 | 2023-06-01 | 中国电力科学研究院有限公司 | Power transmission line photonics-electronics converged long-distance monitoring device and method |
| WO2023181217A1 (en) * | 2022-03-23 | 2023-09-28 | 日本電気株式会社 | Deterioration detection system, deterioration detection device, and deterioration detection method |
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