CN113911289A - Method for monitoring operation period of floating type fan semi-submersible type platform - Google Patents
Method for monitoring operation period of floating type fan semi-submersible type platform Download PDFInfo
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- CN113911289A CN113911289A CN202111342214.3A CN202111342214A CN113911289A CN 113911289 A CN113911289 A CN 113911289A CN 202111342214 A CN202111342214 A CN 202111342214A CN 113911289 A CN113911289 A CN 113911289A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 81
- 238000007667 floating Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007797 corrosion Effects 0.000 claims abstract description 20
- 238000005260 corrosion Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 239000013307 optical fiber Substances 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/10—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/10—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
- B63B79/15—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers for monitoring environmental variables, e.g. wave height or weather data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B2021/505—Methods for installation or mooring of floating offshore platforms on site
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Atmospheric Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- Civil Engineering (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a method for monitoring the operation period of a floating fan semi-submersible platform, which comprises the following steps: monitoring the tension of the anchor chain: the strain measurement device is arranged in a shackle at the connecting position of the anchor chain and the platform body, and the tension of the anchor chain is measured; monitoring the inclination angle and azimuth angle of the anchor chain: arranging an optical fiber gyroscope on a shackle for connecting the anchor chain and the platform body to measure the azimuth angle of the anchor chain; arranging an inclinometer on a shackle for connecting the anchor chain and the platform body, and monitoring the inclination angle of the top of the anchor chain; monitoring the stress of the platform component: strain sensors are arranged on the upper layer support and the lower layer support for monitoring; monitoring the position, orientation and motion attitude of the platform; and monitoring the wind wave flow of the platform operating environment. The invention can comprehensively monitor the displacement, stress, corrosion and other states of each component of the semi-submersible platform in the operation period.
Description
Technical Field
The invention relates to the technical field of operation period monitoring of a semi-submersible platform of a floating fan.
Background
The floating type fan is generally located in deep and far sea far away from coast, the natural conditions such as field wind, wave and flow are severe, and the operation of the fan is extremely easy to damage unpredictably, so that the monitoring has very important significance on the deep and far sea floating type fan. The working states of the platform and the anchoring system can be found through monitoring, problems and hidden dangers can be found as soon as possible, reinforcement and reinforcement are achieved, the problems are prevented in the bud, and safe operation of the fan is guaranteed.
The research in the floating wind power generation is just started, no standard specification can be followed, and no related design and calculation experience exists, so that on one hand, a design method that first-hand data can be verified and corrected by monitoring the operation period is needed, and data is provided for improving the design and scientific research level; on the other hand, the whole life cycle safe operation of the floating type fan is guaranteed through long-term safety monitoring, and therefore the development of the deep sea floating type wind power technology is promoted.
In order to solve the problems, a set of operation period monitoring method is designed for the floating type fan semi-submersible platform, and the method has important significance for ensuring the safe operation of the deep and open sea floating type fan and improving the corresponding design and scientific research level.
Disclosure of Invention
The invention aims to provide a method for monitoring the operation period of a floating type fan semi-submersible platform, which can comprehensively monitor the displacement, stress, corrosion and other states of each component of the semi-submersible platform in the operation period.
The technical scheme for realizing the purpose is as follows:
a floating fan semi-submersible platform operation period monitoring method comprises the following steps: platform body and through the anchor chain of shackle connection platform body, the platform body includes: the monitoring method comprises the following steps of:
step one, monitoring the tension of an anchor chain: the strain measurement device is arranged in a shackle at the connecting position of the anchor chain and the platform body, and the tension of the anchor chain is measured;
step two, monitoring the inclination angle and the azimuth angle of the anchor chain: arranging an optical fiber gyroscope on a shackle for connecting the anchor chain and the platform body to measure the azimuth angle of the anchor chain; arranging an inclinometer on a shackle for connecting the anchor chain and the platform body, and monitoring the inclination angle of the top of the anchor chain;
step three, monitoring the stress of the platform component: strain sensors are arranged on the upper layer support and the lower layer support for monitoring;
monitoring the position, orientation and motion attitude of the platform: measuring the position of the platform body by adopting a global positioning system and an automatic ship identification system, and measuring the orientation of the platform body by adopting an electronic compass; monitoring acceleration and displacement parameters of the platform body with six degrees of freedom by adopting an MRU (motion reference unit);
step five, monitoring the wind wave flow of the platform operating environment: the method comprises the steps of measuring wind speed and wind direction by using an ultrasonic wind speed sensor, measuring waves by using a buoy type wavemeter, and measuring ocean current by using an acoustic Doppler current profiler.
Step six, monitoring platform corrosion: the monitoring platform body corrodes the electric current size and the protection potential voltage size of the sacrificial anode transmission of monitoring point, monitors the electric current size and the protection potential voltage size of the sacrificial anode transmission of anchor chain corrosion monitoring point.
Preferably, the method further comprises the following steps:
seventhly, monitoring the growth and corrosion conditions of marine organisms in the underwater mooring system: a diver or an underwater robot carries a vernier caliper and a weighing device to measure the appearance size of the anchor chain and weigh the weight of the anchor chain;
step eight, data transmission: all data are gathered to the micro control unit in the tower barrel of the platform body and are transmitted to the onshore monitoring center through optical fibers.
Preferably, in step three, strain sensors are arranged at the top and bottom of the rod at positions 1/4, 1/2 and 3/4 of the respective lengths of the upper and lower supports.
Preferably, in the fourth step, the global positioning system, the automatic ship identification system and the electronic compass are all arranged at the top of the transition section of the platform body.
Preferably, in the fifth step, the ultrasonic wind speed sensor is arranged at the top of the transition section of the platform body, and the buoy-type wave meter is connected to a buoy of the platform body by an anchor chain and a floating ball; the acoustic Doppler current profiler is arranged on a buoy of the platform body and is positioned below the buoy-type wave meter.
Preferably, in the sixth step, the corrosion monitoring point of the platform body is located at the depth of 5m below the top of the buoy of the platform body;
the anchor chain corrosion monitoring point is positioned at the shackle position of the connecting position of the anchor chain and the platform body.
The invention has the beneficial effects that: the invention effectively realizes the omnibearing monitoring of the operation period of the semi-submersible type platform through the effective design, ensures the safe operation of the whole life cycle of the floating type fan and has important significance on the level of scientific research.
Drawings
FIG. 1 is a schematic diagram of the position of a semi-submersible platform strain sensor according to the present invention;
FIG. 2 is a schematic view of the semi-submersible position, orientation and motion monitoring position of the present invention;
FIG. 3 is a schematic view of the operation environment of the semi-submersible platform of the present invention showing the positions of wind, wave and current monitoring;
FIG. 4 is a schematic view of the corrosion monitoring position of the semi-submersible platform according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1-4, the floating fan semi-submersible comprises: platform body and through the anchor chain of shackle connection platform body, the platform body includes: the device comprises a plurality of floating barrels, an upper layer support connected with each floating barrel and a lower layer support connected with each floating barrel.
The invention discloses a method for monitoring the operation period of a semi-submersible platform of a floating fan, which comprises the following steps:
step one, monitoring the tension of an anchor chain: and the strain measuring device is arranged in the shackle at the connecting position of the anchor chain and the platform body, and the tensile force of the anchor chain is measured. The strain measuring device adopts a strain sensor, the precision is 1 mu epsilon, and the sampling frequency is 5 Hz.
Step two, monitoring the inclination angle and the azimuth angle of the anchor chain: an optical fiber gyroscope is arranged on a shackle for connecting the anchor chain and the platform body to measure the azimuth angle of the anchor chain, the measurement precision is 0.5 degrees, the measurement range is +/-90 degrees, and the sampling frequency is 5 Hz. An inclinometer is arranged on a shackle for connecting the anchor chain and the platform body, the inclination angle of the top of the anchor chain is monitored, the measurement precision is 1 degree, the measurement range is +/-45 degrees, and the sampling frequency can be 5 Hz.
Step three, monitoring the stress of the platform component: strain sensors are placed at the top and bottom (compression and tension sides of the rod when it is bent) of the rod at 1/4, 1/2 and 3/4 locations of the respective lengths of the upper and lower struts for monitoring. As shown in fig. 1. Meanwhile, only one of the three supports is arranged, and the other two supports are arranged in the same way, so that 36 strain sensors are arranged. In addition, the longitudinal and circumferential strains of 0 degree, 90 degrees, 180 degrees and 270 degrees in the circumferential direction are measured at the joint interface of the tower barrel and the transition section, and the total number of the strain sensors is 4 measuring points and 8 strain sensors. All the strain sensors adopt fiber Bragg grating strain sensors, the measurement precision is 1 mu epsilon, and the sampling frequency is 5 Hz.
Monitoring the position, orientation and motion attitude of the platform: the position of the platform body is measured by a global positioning System and an Automatic identification System (Automatic identification System), the measurement precision position is +/-1 m, and the sampling frequency is 0.1 Hz. The orientation of the platform body is measured by an electronic compass, the measurement precision position is +/-1 degree, and the sampling frequency is 0.1 Hz. And monitoring the acceleration and displacement parameters of six degrees of freedom of the platform body in the modes of swaying, surging, heaving, swaying, pitching and yawing by adopting an MRU (motion reference unit) motion reference unit. As shown in fig. 2, the global positioning system, the automatic ship identification system and the electronic compass are all arranged on the top of the transition section of the platform body.
Step five, monitoring the wind wave flow of the platform operating environment: as shown in FIG. 3, the wind speed and wind direction were measured using an ultrasonic wind speed sensor, and the sampling frequency was 0.1 Hz. The waves are measured by a buoy type wavemeter, and the data sampling frequency is 0.1 Hz. The ultrasonic wave wind speed sensor is arranged at the top of the transition section of the platform body, and the buoy type wave meter is connected to a buoy of the platform body through an anchor chain and a floating ball. The sampled data is transmitted directly to a receiver on the platform via a short-range signal. The flow of the sea is measured using an acoustic doppler flow profiler. The acoustic Doppler current profiler is arranged on the buoys of the platform body and is positioned at the positions 1m and 2m below the cross sections of the wavemeters at the lowest layers of the two buoys, two buoys are respectively arranged on the two buoys, and the sampling frequency is 0.1Hz as shown in figure 3.
Step six, monitoring platform corrosion: the current and the protection potential voltage emitted by the sacrificial anode of the corrosion monitoring point of the platform body are monitored, and the monitoring frequency is 0.1 Hz. And monitoring the current emitted by the sacrificial anode of the anchor chain corrosion monitoring point and the protection potential voltage, wherein the monitoring frequency is 0.1 Hz. As shown in fig. 4, the platform body corrosion monitoring point is located at a depth of 5m below the top of the float bowl of the platform body; the anchor chain corrosion monitoring point is positioned at the shackle position of the connecting position of the anchor chain and the platform body. The number of the measuring points on the platform steel pipe structure is 6, the number of the measuring points on the anchor chain is 4, and each measuring point monitors the protection potential and the emission current of the sacrificial anode.
Seventhly, monitoring the growth and corrosion conditions of marine organisms in the underwater mooring system: a diver or an underwater robot carries a vernier caliper and a weighing device to measure the appearance size of the anchor chain and weigh the weight of the anchor chain; the initial monitoring was set 1 month after the start of the operation, followed by underwater monitoring every 3 months.
Step eight, data transmission: all data are gathered to the micro control unit in the tower barrel of the platform body and are transmitted to the onshore monitoring center through optical fibers.
In fig. 1 to 4, reference numerals denote: 1. strain monitoring measuring points; 2. measuring the position, the orientation and the motion posture of the platform; 3. measuring points of an ultrasonic wind speed sensor; 4. measuring points of an acoustic Doppler current profiler; 5. measuring points of a buoy type wave meter; 6. measuring a corrosion point of the platform structure; 7. the anchor chain is connected with the platform and corroded the measurement point.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (6)
1. A floating fan semi-submersible platform operation period monitoring method comprises the following steps: platform body and through the anchor chain of shackle connection platform body, the platform body includes: the monitoring method comprises the following steps of (1) connecting a plurality of floating bowls, upper layer supports connected with the floating bowls and lower layer supports connected with the floating bowls, and is characterized in that the monitoring method comprises the following steps:
step one, monitoring the tension of an anchor chain: the strain measurement device is arranged in a shackle at the connecting position of the anchor chain and the platform body, and the tension of the anchor chain is measured;
step two, monitoring the inclination angle and the azimuth angle of the anchor chain: arranging an optical fiber gyroscope on a shackle for connecting the anchor chain and the platform body to measure the azimuth angle of the anchor chain; arranging an inclinometer on a shackle for connecting the anchor chain and the platform body, and monitoring the inclination angle of the top of the anchor chain;
step three, monitoring the stress of the platform component: strain sensors are arranged on the upper layer support and the lower layer support for monitoring;
monitoring the position, orientation and motion attitude of the platform: measuring the position of the platform body by adopting a global positioning system and an automatic ship identification system, and measuring the orientation of the platform body by adopting an electronic compass; monitoring acceleration and displacement parameters of the platform body with six degrees of freedom by adopting an MRU (motion reference unit);
step five, monitoring the wind wave flow of the platform operating environment: the method comprises the steps of measuring wind speed and wind direction by using an ultrasonic wind speed sensor, measuring waves by using a buoy type wavemeter, and measuring ocean current by using an acoustic Doppler current profiler.
Step six, monitoring platform corrosion: the monitoring platform body corrodes the electric current size and the protection potential voltage size of the sacrificial anode transmission of monitoring point, monitors the electric current size and the protection potential voltage size of the sacrificial anode transmission of anchor chain corrosion monitoring point.
2. The method of monitoring an operational period of a floating wind turbine semi-submersible platform according to claim 1, further comprising:
seventhly, monitoring the growth and corrosion conditions of marine organisms in the underwater mooring system: a diver or an underwater robot carries a vernier caliper and a weighing device to measure the appearance size of the anchor chain and weigh the weight of the anchor chain;
step eight, data transmission: all data are gathered to the micro control unit in the tower barrel of the platform body and are transmitted to the onshore monitoring center through optical fibers.
3. The floating wind turbine semi-submersible platform operational period monitoring method of claim 1, wherein in step three, strain sensors are placed at the top and bottom of the rod at 1/4, 1/2 and 3/4 positions of the respective lengths of the upper and lower supports.
4. The floating fan semi-submersible platform operation period monitoring method according to claim 1, wherein in step four, the global positioning system, the ship automatic identification system and the electronic compass are all disposed on top of the transition section of the platform body.
5. The method for monitoring the operation period of the floating fan semi-submersible platform according to claim 1, wherein in the fifth step, the ultrasonic wind speed sensor is arranged at the top of the transition section of the platform body, and the buoy-type wave instrument is connected to a buoy of the platform body by an anchor chain and a floating ball; the acoustic Doppler current profiler is arranged on a buoy of the platform body and is positioned below the buoy-type wave meter.
6. The floating fan semi-submersible platform operation period monitoring method according to claim 1, wherein in step six, the platform body corrosion monitoring point is located 5m deep below the top of the float bowl of the platform body;
the anchor chain corrosion monitoring point is positioned at the shackle position of the connecting position of the anchor chain and the platform body.
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| CN202111342214.3A CN113911289B (en) | 2021-11-12 | 2021-11-12 | Floating fan semi-submersible platform operation period monitoring method |
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| CN202111342214.3A CN113911289B (en) | 2021-11-12 | 2021-11-12 | Floating fan semi-submersible platform operation period monitoring method |
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