CN205370863U - Aerogenerator sound joint monitoring devices that shakes - Google Patents
Aerogenerator sound joint monitoring devices that shakes Download PDFInfo
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- CN205370863U CN205370863U CN201620148975.3U CN201620148975U CN205370863U CN 205370863 U CN205370863 U CN 205370863U CN 201620148975 U CN201620148975 U CN 201620148975U CN 205370863 U CN205370863 U CN 205370863U
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Abstract
The utility model discloses an aerogenerator sound joint monitoring devices that shakes, including vibration sensor, acoustic emission sensor, first wave filter, second wave filter, microprocessor and display, vibration sensor and acoustic emission sensor all set up on aerogenerator, and first wave filter is connected with vibration sensor, and the second wave filter is connected with acoustic emission sensor, and first wave filter and second wave filter are connected with microprocessor respectively, the display is connected with microprocessor. The utility model discloses a vibration signal and acoustic signals jointly monitor aerogenerator, the monitoring that makes monitoring devices more comprehensively, more effectively, more accurate, reduce monitoring devices's error, further, utilize acoustic emission sensor to monitor the slight crack of aerogenerator inside bearing, judge aerogenerator's trouble in advance, maintain in advance and maintain, have pioneering meaning to aerogenerator fault monitoring.
Description
Technical field
This utility model relates to technical field of wind power generator, shakes monitoring device combining particularly to a kind of wind-driven generator sound.
Background technology
Wind energy is clean energy resource, and wind-power electricity generation is one of regenerative resource exploration project of countries in the world common concern in recent years, and development speed is very swift and violent, and the trend of unit maximization, hugeization occurs.The structure of Wind turbines also becomes increasingly complex.The frequency that vibration fault occurs is more and more higher, and particularly unit operation is after several years, and vibration fault is more prone to appearance.The a large amount of Wind turbines of current China enters the vibration fault period happening with increasing frequency.Current vibration monitoring mainly has two kinds of methods, and one is manual inspection, and one is on-line monitoring system.Monitoring vibration fault is only manually patrolled and examined, and maintenance cost is high, and is difficult to predict in time the generation of fault.On-line monitoring equipment collection only gathers vibration signal, it is easy to producing erroneous judgement, cause that monitoring cost is excessive, monitoring periods is long；Also or monitor inaccurate, it is impossible to monitor wind-driven generator internal bearings and the situation of slight crack occurs, it is impossible in advance wind-driven generator internal bearings is carried out anticipation, corresponding situation is just found when causing occurring big fault.
Utility model content
This utility model for solve above-mentioned technical problem for provide a kind of monitoring more comprehensively, more effective, more accurately wind-driven generator sound shake monitoring device combining.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of wind-driven generator sound shakes monitoring device combining, including vibrating sensor, acoustic emission sensor, the first wave filter, the second wave filter, microprocessor and display；Described vibrating sensor and acoustic emission sensor are arranged on wind-driven generator, described first wave filter is connected with vibrating sensor, described second wave filter is connected with acoustic emission sensor, and described first wave filter and the second wave filter are connected with microprocessor respectively；Described display is connected with microprocessor.
This utility model provides the benefit that: carried out the detection of vibration signal by vibrating sensor, and acoustic emission sensor carries out the detection of acoustic signals, uses microprocessor that vibration signal and acoustic signals are analyzed；By vibration signal and acoustic signals, wind-driven generator is carried out combined monitoring, make the monitoring of monitoring device more comprehensively, more effective, more accurate, reduce the error of monitoring device, further, utilize acoustic emission sensor that the trickle slight crack of wind-driven generator internal bearings is monitored, judge the fault of wind-driven generator in advance, carry out in advance maintaining and safeguarding, wind-driven generator malfunction monitoring is had pioneering meaning.
As a kind of preferred structure of the present utility model, in order to improve the problem that vibration signal cannot carry out analog digital conversion, also including the first analog-digital converter, described first analog-digital converter is arranged between the first wave filter and microprocessor.So, vibration signal can being carried out analog digital conversion by the first analog-digital converter, the calculating making microprocessor is simpler, accurate, the calculating time of microprocessor.
As a kind of preferred structure of the present utility model, in order to improve the problem that acoustic signals cannot carry out analog digital conversion, also including the second analog-digital converter, described second analog-digital converter is arranged between the second wave filter and microprocessor.So, acoustic signals can being carried out analog digital conversion by the second analog-digital converter, the calculating making microprocessor is simpler, accurate, the calculating time of microprocessor.
As a kind of preferred structure of the present utility model, in order to improve the problem that microprocessor performance is low, cost is high, described microprocessor is STM32 chip, and described STM32 chip is arranged in display, and is connected with display.So, by STM32 chip, there is high-performance, low cost, low-power consumption and simple in construction, for Embedded chip, be directly embedded in display, improve service efficiency.
As a kind of preferred structure of the present utility model, in order to improve the problem that display cannot connect with exterior PC end, described display is LED display, and described LED display is connected with exterior PC end, and described microprocessor is connected with exterior PC end.So, it is attached by LED display and microprocessor and exterior PC end, it is possible to further vibration signal and acoustic signals are carried out confluence analysis by exterior PC end.
Accompanying drawing explanation
Fig. 1 is that this utility model wind-driven generator sound shakes the structural representation of monitoring device combining.
Label declaration:
1, vibrating sensor；2, acoustic emission sensor；3, the first wave filter；
4, the second wave filter；5, microprocessor；6, display.
Detailed description of the invention
By describing technology contents of the present utility model, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Please with reference to Fig. 1, it can be seen that this utility model wind-driven generator sound shakes, monitoring device combining includes vibrating sensor 1, acoustic emission sensor the 2, first wave filter the 3, second wave filter 4, microprocessor 5 and display 6 as shown in the figure；The parameter transform of Engineering Vibration is become the signal of telecommunication by vibrating sensor 1, display and record after electronic circuit amplifies.Vibrating sensor 1 is characterized by and first mechanical vibration amount is converted to electricity, then electricity is measured, thus obtaining the mechanical quantity to be measured again.In the present embodiment, use common vibrating sensor 1, for detecting the vibration of wind-driven generator.Acoustic emission sensor 2 is used herein is resonant mode acoustic emission sensor, it is made up of the piezoelectric element of multiple different-thickness, owing to the inside of wind-driven generator is constitutionally stable metal material, the sound of this kind of material is less to anisotropy, SATT coefficient is also only small, frequency band range is 25KHz～750KHz mostly, therefore selects resonant mode acoustic emission sensor more applicable.Acoustic emission sensor 2 is for detecting the abnormal sound that wind-driven generator produces.Described vibrating sensor 1 and acoustic emission sensor 2 are arranged on wind-driven generator, and described first wave filter 3 is connected with vibrating sensor 1, and described second wave filter 4 is connected with acoustic emission sensor 2.Vibration signal is filtered by the first wave filter 3, and the upper limit of filtering is set to the signal of 10KHZ, the interference vibration signal of more than elimination 10KHZ；Acoustic signals is filtered by the second wave filter 4, and the lower limit of filtering is set to the interference acoustic signals of 15KHZ, below elimination 15KHZ.Described first wave filter 3 is connected with microprocessor 5 respectively with the second wave filter 4；The central processing unit that microprocessor 5 is made up of a piece of or several large scale integrated circuits.In the present embodiment, microprocessor 5 adopts STM32 chip, and STM32 chip is the embedded chip of high-performance, low cost, low-power consumption, during clock frequency 72MHz, code is performed from flash memory, STM32 chip power-consumption 36mA, is product least in power-consuming on 32 markets, is equivalent to 0.5mA/MHz.Described STM32 chip is arranged in display 6, and is connected with display 6, improves service efficiency.Described display 6 is LED display, and described LED display is connected with exterior PC end, and described microprocessor 5 is connected with exterior PC end.So, it is attached by LED display and microprocessor and exterior PC end, it is possible to further vibration signal and acoustic signals are carried out confluence analysis by exterior PC end.
In the present embodiment, also including the first analog-digital converter and the second analog-digital converter, described first analog-digital converter is arranged between the first wave filter and microprocessor.Described second analog-digital converter is arranged between the second wave filter and microprocessor.Analog-digital converter and A/D converter, or it is called for short ADC, it is common that refer to that analog-signal transitions is the electronic component of digital signal by one.Common analog-digital converter is the digital signal that an input voltage signal is converted to an output.Vibration signal can being carried out analog digital conversion by the first analog-digital converter, the calculating making microprocessor is simpler, accurate, the calculating time of microprocessor.Acoustic signals can being carried out analog digital conversion by the second analog-digital converter, the calculating making microprocessor is simpler, accurate, the calculating time of microprocessor.
In use procedure, vibrating sensor 1, acoustic emission sensor 2 are arranged on wind-driven generator, vibrating sensor 1 and acoustic emission sensor 2 are filtered by first wave filter the 3, second wave filter 4 respectively, vibration signal and acoustic signals are processed by microprocessor 5, and show on display 5.This utility model carries out the detection of vibration signal by vibrating sensor 1, and acoustic emission sensor 2 carries out the detection of acoustic signals, uses microprocessor 5 that vibration signal and acoustic signals are analyzed；By vibration signal and acoustic signals, wind-driven generator is carried out combined monitoring, make the monitoring of monitoring device more comprehensively, more effective, more accurate, reduce the error of monitoring device, further, utilize acoustic emission sensor 2 that the trickle slight crack of wind-driven generator internal bearings is monitored, judge the fault of wind-driven generator in advance, carry out in advance maintaining and safeguarding, wind-driven generator malfunction monitoring is had pioneering meaning.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent shapes utilizing this utility model description and accompanying drawing content to make or reconfiguration; or directly or indirectly it is used in other relevant technical fields, all in like manner include in scope of patent protection of the present utility model.
Claims (5)
1. a wind-driven generator sound shakes monitoring device combining, it is characterised in that: include vibrating sensor, acoustic emission sensor, the first wave filter, the second wave filter, microprocessor and display；
Described vibrating sensor and acoustic emission sensor are arranged on wind-driven generator, described first wave filter is connected with vibrating sensor, described second wave filter is connected with acoustic emission sensor, and described first wave filter and the second wave filter are connected with microprocessor respectively；
Described display is connected with microprocessor.
2. wind-driven generator sound according to claim 1 shakes monitoring device combining, it is characterised in that: also including the first analog-digital converter, described first analog-digital converter is arranged between the first wave filter and microprocessor.
3. wind-driven generator sound according to claim 1 shakes monitoring device combining, it is characterised in that: also including the second analog-digital converter, described second analog-digital converter is arranged between the second wave filter and microprocessor.
4. wind-driven generator sound according to claim 1 shakes monitoring device combining, it is characterised in that: described microprocessor is STM32 chip, and described STM32 chip is arranged in display, and is connected with display.
5. wind-driven generator sound according to claim 1 shakes monitoring device combining, it is characterised in that: described display is LED display, and described LED display is connected with exterior PC end, and described microprocessor is connected with exterior PC end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620148975.3U CN205370863U (en) | 2016-02-29 | 2016-02-29 | Aerogenerator sound joint monitoring devices that shakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620148975.3U CN205370863U (en) | 2016-02-29 | 2016-02-29 | Aerogenerator sound joint monitoring devices that shakes |
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| Publication Number | Publication Date |
|---|---|
| CN205370863U true CN205370863U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620148975.3U Expired - Fee Related CN205370863U (en) | 2016-02-29 | 2016-02-29 | Aerogenerator sound joint monitoring devices that shakes |
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| CN (1) | CN205370863U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969928A (en) * | 2017-03-28 | 2017-07-21 | 辽宁机电职业技术学院 | A kind of mechanical fault detection diagnostic method |
| CN108021064A (en) * | 2017-12-06 | 2018-05-11 | 合肥沙泰机电科技有限公司 | A kind of power-equipment health status inline diagnosis method |
| CN109952429A (en) * | 2016-09-07 | 2019-06-28 | 维斯塔斯风力系统集团公司 | Predict wind turbine noise |
| WO2021159919A1 (en) * | 2020-02-10 | 2021-08-19 | 中国海洋大学 | System and method for monitoring health state of offshore wind power wind turbine and sound waves of sea waves |
| CN116733687A (en) * | 2023-04-28 | 2023-09-12 | 广东工业大学 | Detection method for internal modal resonance of fan |
-
2016
- 2016-02-29 CN CN201620148975.3U patent/CN205370863U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952429A (en) * | 2016-09-07 | 2019-06-28 | 维斯塔斯风力系统集团公司 | Predict wind turbine noise |
| CN109952429B (en) * | 2016-09-07 | 2020-11-10 | 维斯塔斯风力系统集团公司 | Predicting wind turbine noise |
| US11286909B2 (en) | 2016-09-07 | 2022-03-29 | Vestas Wind Systems A/S | Predicting wind turbine noise |
| CN106969928A (en) * | 2017-03-28 | 2017-07-21 | 辽宁机电职业技术学院 | A kind of mechanical fault detection diagnostic method |
| CN108021064A (en) * | 2017-12-06 | 2018-05-11 | 合肥沙泰机电科技有限公司 | A kind of power-equipment health status inline diagnosis method |
| WO2021159919A1 (en) * | 2020-02-10 | 2021-08-19 | 中国海洋大学 | System and method for monitoring health state of offshore wind power wind turbine and sound waves of sea waves |
| CN116733687A (en) * | 2023-04-28 | 2023-09-12 | 广东工业大学 | Detection method for internal modal resonance of fan |
| CN116733687B (en) * | 2023-04-28 | 2024-01-12 | 广东工业大学 | Detection method for internal modal resonance of fan |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20200229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |