CN210265032U - Offshore wind turbine generator system bolt looseness detecting system - Google Patents
Offshore wind turbine generator system bolt looseness detecting system Download PDFInfo
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- CN210265032U CN210265032U CN201920852272.2U CN201920852272U CN210265032U CN 210265032 U CN210265032 U CN 210265032U CN 201920852272 U CN201920852272 U CN 201920852272U CN 210265032 U CN210265032 U CN 210265032U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to an offshore wind generating set bolt looseness detecting system, this system including vibration sensor (20) that are used for detecting wind generating set vibration state, the position sensor who is used for detecting the prefabricated symbol position of bolt, data analyzer (30), signal reception transmitter (21) and remote control ware, vibration sensor (20) and position sensor all be connected to data analyzer (30), data analyzer (30) receive transmitter (21) through the signal and be connected to remote control ware. Compared with the prior art, the utility model discloses detecting system simple structure, the good reliability, economic nature is good, can judge whether not hard up of bolt the very first time, accomplishes in time to discover to maintain, ensures offshore wind generating set's safe operation.
Description
Technical Field
The utility model belongs to the technical field of offshore wind power generation operation and maintenance and specifically relates to a not hard up detecting system of offshore wind generating set bolt.
Background
Offshore wind generating set operational environment, for inland the operating mode is more abominable, when main working part bolt is not hard up, can arouse violent shake trouble, it is not hard up that there is generator base fixing bolt typically, can lead to aerogenerator violent shake, if discovery maintenance in time not, can pull up the wire rope cable when long-term serious, make the fan fall down the damage.
The method adopted at present mainly comprises that operation and maintenance personnel check regularly, and the transportation cost and the labor cost are obviously increased compared with the onshore fan due to the fact that the working environment of the fan is on the sea.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an offshore wind turbine set bolt looseness detecting system in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a bolt looseness detection system for an offshore wind generating set comprises a vibration sensor for detecting the vibration state of the wind generating set, a position sensor for detecting the position of a bolt prefabrication symbol, a data analyzer, a signal receiving transmitter and a remote controller, wherein the vibration sensor and the position sensor are connected to the data analyzer, and the data analyzer is connected to the remote controller through the signal receiving transmitter.
The position sensor comprises a CCD sensor used for shooting bolt images.
The CCD sensor is arranged right above the bolt and is arranged right opposite to the bolt.
The data analyzer comprises a singlechip and a DSP processor.
The vibration sensor and/or the position sensor are/is connected with the data analyzer through a communication line.
The vibration sensor and/or the position sensor are/is connected with the data analyzer through a wireless module.
The wireless module comprises Bluetooth.
The remote controller comprises a PC and a handheld terminal.
Compared with the prior art, the utility model has the advantages of as follows:
(1) the utility model discloses a vibration sensor and CCD sensor's combination judge whether the bolt is not hard up, wherein the vibration sensor carries out the primary judgement through the vibration state of wind turbine generator system, triggers CCD sensor collection bolt prefabrication symbol position when the vibration is great, whether changes and confirms whether the bolt is not hard up through bolt prefabrication symbol position, this detecting system simple structure, the good reliability, economic nature is good;
(2) the utility model discloses vibration sensor is in operating condition in real time, and other parts are in standby dormant state, and other parts of trigger system work when vibration sensor gathers unusual vibration signal, on the one hand under marine abominable operating mode environment, the device more shows simply reliably, and on the other hand can judge the bolt very first time and whether become flexible, accomplishes in time to discover to maintain, ensures offshore wind generating set's safe operation.
Drawings
FIG. 1 is a schematic structural view of the offshore wind turbine generator system bolt looseness detection system of the present invention;
FIG. 2 is a view showing an initial position of a bolt preform symbol in the embodiment;
FIG. 3 is a schematic diagram of a bolt prefabrication symbol position B when the bolt is loosened in the embodiment;
FIG. 4 is a schematic diagram of bolt prefabrication symbol positions in the case of bolt loosening in the embodiment.
In the figure, 20 is a vibration sensor, 21 is a signal receiving emitter, 22 is a CCD sensor, 30 is a data analyzer, and 40 is a power supply.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the following description of the embodiments is merely an example of the nature, and the present invention is not intended to limit the application or the use thereof, and the present invention is not limited to the following embodiments.
Examples
As shown in FIG. 1, the offshore wind generating set bolt looseness detection system comprises a vibration sensor 20 for detecting the vibration state of a wind generating set, a position sensor for detecting the position of a bolt prefabrication symbol, a data analyzer 30, a signal receiving transmitter 21 and a remote controller, wherein the vibration sensor 20 and the position sensor are both connected to the data analyzer 30, the data analyzer 30 is connected to the remote controller through the signal receiving transmitter 21, and the remote controller comprises a PC and a handheld terminal, so that remote monitoring can be carried out. The vibration sensor 20, the position sensor, the data analyzer 30, and the signal receiving/transmitting unit 21 are connected to a power source 40.
The position sensor comprises a CCD sensor 22 for shooting the bolt image, and the CCD sensor 22 is installed right above the bolt and is arranged right opposite to the bolt. The data analyzer 30 includes a single chip microcomputer and a DSP processor, and the single chip microcomputer is used in this embodiment.
The vibration sensor 20 and/or the position sensor are connected to the data analyzer 30 through a communication line, and further, the vibration sensor 20 and/or the position sensor may be connected to the data analyzer 30 through a wireless module, which includes bluetooth, thereby reducing the number of communication lines in a complex environment.
The offshore wind turbine generator system bolt looseness detection system works in two modes: active detection mode and passive detection mode:
the specific working principle of the active detection mode is as follows:
a1, detecting a vibration signal of the wind generating set in real time by the vibration sensor 20 and sending the vibration signal to the data analyzer 30;
a2, analyzing the vibration signal of the wind generating set by the data analyzer 30, and activating a position sensor by the data analyzer 30 when the vibration signal is larger than a set threshold value, wherein the position sensor collects the bolt prefabrication symbol position and sends the bolt prefabrication symbol position to the data analyzer 30;
a3, the data analyzer 30 judges whether the bolt prefabrication symbol position is the same as the initial position, if so, the bolt is not loosened, otherwise, the bolt is loosened, and the data analyzer 30 sends a bolt loosening signal to the remote controller through the signal receiving emitter 21;
the specific working principle of the passive detection mode is as follows:
in the active detection mode, the data analyzer 30 receives a passive detection signal of the remote controller in real time through the signal receiving transmitter 21, and if the data analyzer 30 receives the passive detection signal, the following steps are performed:
b1, the data analyzer 30 activates a position sensor, and the position sensor collects the bolt prefabrication symbol position and sends the bolt prefabrication symbol position to the data analyzer 30;
b2, the data analyzer 30 judges whether the bolt prefabrication symbol position is the same as the initial position, if so, the bolt is not loosened, and the data analyzer 30 sends a bolt loosening signal to the remote controller through the signal receiving emitter 21; otherwise the bolt is loose, the data analyser 30 sends a bolt loosening signal to the remote controller via the signal receiving transmitter 21.
Specifically, the utility model discloses not hard up detecting system of marine wind generating set bolt's concrete working process does:
an initialization process:
(1) the power supply 40 is turned on, and the vibration sensor 20, the signal reception emitter 21, the CCD sensor 22, and the data analyzer 30 are in an operating state. The CCD sensor 22 images the bolt, and the bolt initial state image is transmitted to the data analyzer 30 through the communication line, and the data analyzer 30 images the bolt initial state image, and recognizes the position of the initial bolt pre-symbol in the bolt initial state image, as shown in fig. 2, the CCD sensor 22 enters the standby sleep state.
(2) In the normal operation process of the wind driven generator, the vibration sensor 20 detects the wind driven generator in real time, and transmits the operation vibration signal of the wind driven generator to the data analyzer 30 through a communication line, and the data analyzer 30 records that the signal of the vibration sensor 20 is the normal operation vibration signal at the moment.
Daily maintenance check status (i.e., the passive detection mode described above):
when the daily maintenance inspection period is up, a background operator transmits a daily maintenance inspection signal to the signal receiving and transmitting device 21 through the remote controller, the signal receiving and transmitting device 21 transmits the daily maintenance inspection signal to the data analyzer 30 through a communication line, the data analyzer 30 activates the CCD sensor 22 through the communication line to be in a working state, the CCD sensor 22 images the bolt state A and transmits the bolt state A to the data analyzer 30 through the communication line, and the CCD sensor 22 enters a standby dormant state. The data analyzer 30 images the bolt state A, identifies a bolt prefabrication symbol position B in the bolt state imaging A, and as shown in fig. 3, the data analyzer 30 is different from the initial bolt prefabrication symbol position, is connected with the signal receiving transmitter 21 through a communication line and transmits a bolt loosening signal of the wind driven generator; when the data analyzer 30 identifies the bolt prefabrication symbol position B, and the bolt prefabrication symbol position B is the same as the initial bolt prefabrication symbol position, the data analyzer 30 is connected with the signal receiving transmitter 21 through a communication line to transmit a normal bolt signal of the wind driven generator.
Violent shaking state of the wind driven generator:
when the wind driven generator shakes violently due to bolt loosening, the vibration sensor 20 transmits a wind driven generator operation vibration signal C to the data analyzer 30 through a communication line, and the data analyzer 30 compares the wind driven generator operation vibration signal C with a normal operation vibration signal to obtain an abnormal operation vibration signal of the wind driven generator operation vibration signal C. At this time, the data analyzer 30 activates the CCD sensor 22 to be in an operating state through the communication line, the CCD sensor 22 images the bolt state and transmits the image to the data analyzer 30 through the communication line, and the CCD sensor 22 enters a standby sleep state. The data analyzer 30 images the bolt state to identify the bolt prefabrication symbol position penta in the bolt state imaging, as shown in fig. 4, the data analyzer 30 is different from the initial bolt prefabrication symbol position, and is connected with the signal receiving and transmitting device 21 through a communication line to transmit a bolt loosening signal of the wind driven generator.
The utility model provides an offshore wind generating set bolt looseness detecting system judges whether the bolt is not hard up through the combination of vibration sensor 20 and CCD sensor 22, wherein vibration sensor 20 carries out the preliminary judgement through the vibration state of wind turbine generator system, triggers CCD sensor 22 when the vibration is great and gathers the prefabricated symbol position of bolt, whether the bolt is not hard up is confirmed through whether the prefabricated symbol position of bolt changes, this detecting system simple structure, the good reliability, economic nature is good; compared with other bolt loosening judgment methods, the method has simple strategy, the whole system (except the vibration sensor 20) is always in a standby dormant state at ordinary times, and the device is simpler and more reliable under severe working condition environment at sea; the utility model discloses a vibration sensor 20 carries out real-time check to aerogenerator, can judge whether not hard up by the very first time bolt, accomplishes in time to discover to maintain, ensures offshore wind generating set's safe operation.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (8)
1. The offshore wind generating set bolt looseness detection system is characterized by comprising a vibration sensor (20) for detecting the vibration state of a wind generating set, a position sensor for detecting the preset symbol position of a bolt, a data analyzer (30), a signal receiving transmitter (21) and a remote controller, wherein the vibration sensor (20) and the position sensor are both connected to the data analyzer (30), and the data analyzer (30) is connected to the remote controller through the signal receiving transmitter (21).
2. An offshore wind turbine unit bolt loosening detection system according to claim 1, wherein the position sensor comprises a CCD sensor (22) for capturing bolt images.
3. An offshore wind turbine unit bolt looseness detection system according to claim 2, wherein the CCD sensor (22) is installed right above and opposite to the bolt.
4. The offshore wind turbine unit bolt looseness detection system of claim 1, wherein the data analyzer (30) comprises a single chip microcomputer and a DSP processor.
5. An offshore wind turbine unit bolt loosening detection system according to claim 1, wherein the vibration sensor (20) and/or position sensor is connected to a data analyzer (30) via a communication line.
6. An offshore wind turbine unit bolt loosening detection system according to claim 1, wherein the vibration sensor (20) and/or position sensor is connected to the data analyzer (30) via a wireless module.
7. The offshore wind turbine unit bolt looseness detection system of claim 6, wherein said wireless module comprises Bluetooth.
8. The offshore wind turbine unit bolt loosening detection system according to claim 1, wherein the remote controller comprises a PC and a handheld terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852272.2U CN210265032U (en) | 2019-06-06 | 2019-06-06 | Offshore wind turbine generator system bolt looseness detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852272.2U CN210265032U (en) | 2019-06-06 | 2019-06-06 | Offshore wind turbine generator system bolt looseness detecting system |
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| CN210265032U true CN210265032U (en) | 2020-04-07 |
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| CN201920852272.2U Active CN210265032U (en) | 2019-06-06 | 2019-06-06 | Offshore wind turbine generator system bolt looseness detecting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173399A (en) * | 2019-06-06 | 2019-08-27 | 上海电力学院 | A kind of offshore wind turbine bolt looseness detection system and method |
| CN111947003A (en) * | 2020-08-25 | 2020-11-17 | 宁波思密德机电科技有限公司 | Full-automatic machinery that is used for bearing to add grease and shield |
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2019
- 2019-06-06 CN CN201920852272.2U patent/CN210265032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173399A (en) * | 2019-06-06 | 2019-08-27 | 上海电力学院 | A kind of offshore wind turbine bolt looseness detection system and method |
| CN111947003A (en) * | 2020-08-25 | 2020-11-17 | 宁波思密德机电科技有限公司 | Full-automatic machinery that is used for bearing to add grease and shield |
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