CN206756223U - A kind of Hydropower Unit dynamic signalling analysis device - Google Patents
A kind of Hydropower Unit dynamic signalling analysis device Download PDFInfo
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- CN206756223U CN206756223U CN201720626027.0U CN201720626027U CN206756223U CN 206756223 U CN206756223 U CN 206756223U CN 201720626027 U CN201720626027 U CN 201720626027U CN 206756223 U CN206756223 U CN 206756223U
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- hydropower unit
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- vibration
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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
- Y02E10/20—Hydro energy
Abstract
The utility model belongs to signal processing technology field, disclose a kind of Hydropower Unit dynamic signalling analysis device, Portable data acquisition instrument gathers and exports the vibration of Hydropower Unit in real time, throw, pressure fluctuation, rotating speed and related duty parameter signal, test analysis terminal carries out signal transmission by TCP/IP Ethernets and Portable data acquisition instrument, and vibration, throw, pressure fluctuation, rotating speed and related duty parameter to Hydropower Unit are monitored, manage and analyzed；The Hydropower Unit dynamic signalling analysis device can accurate measurement and analysis turbine-generator units frame vibration, main shaft runout, pressure fluctuation and duty parameter, and various standard stability trials, transitional experiment and the experiment of other correlated performances can be carried out, accuracy is high, it is convenient and swift, the running status of Hydropower Unit accurately can be quickly obtained, direct basis is provided to understand machine unit characteristic and searching failure cause.
Description
Technical field
The utility model belongs to signal processing technology field, more particularly to a kind of Hydropower Unit dynamic signalling analysis dress
Put.
Background technology
Accurate measurement and analysis Hydropower Unit dynamic signalling analysis device can turbine-generator units frame vibration, big
Shaft displacement, pressure fluctuation and duty parameter, and carry out various standard stability trials, transitional experiment and the examination of other correlated performances
Test, turn into quick obtaining Hydropower Unit running status and search the important channel of failure cause.
And the accuracy of Hydropower Unit dynamic signalling analysis is relatively low at present, process is cumbersome, accurately can not quickly obtain
The running status of Hydropower Unit, it staff is quickly understood machine unit characteristic and search failure cause.
The content of the invention
Relatively low for the accuracy of current Hydropower Unit dynamic signalling analysis existing for prior art, process is cumbersome,
The running status of Hydropower Unit accurately can not be quickly obtained, staff is quickly understood machine unit characteristic and search failure
The problem of reason, the utility model provide a kind of Hydropower Unit dynamic signalling analysis device.
The utility model is achieved in that a kind of Hydropower Unit dynamic signalling analysis device, and the Hydropower Unit is moved
State signal testing analytical equipment includes：
For gathering and exporting vibration, throw, pressure fluctuation, rotating speed and the related duty parameter signal of Hydropower Unit in real time
Portable data acquisition instrument；
Signal transmission is carried out by TCP/IP Ethernets and the Portable data acquisition instrument, it is described portable for receiving
Vibration, throw, pressure fluctuation, rotating speed and the related duty parameter signal of formula data collecting instrument output, vibration to Hydropower Unit,
The test analysis terminal that throw, pressure fluctuation, rotating speed and related duty parameter are monitored, manage and analyzed.
The Portable data acquisition instrument respectively with current vortex sensor, low-frequency velocity sensor, pressure and differential pressure transporting
Device, photoelectric sensor carry out signal connection.
The Portable data acquisition instrument is sensed with current vortex sensor, low-frequency velocity respectively by four core coaxial fittings
Device, pressure and differential pressure transmitter, photoelectric sensor carry out signal connection.
Be built-in with sensor power supply in the Portable data acquisition instrument, the sensor power supply respectively with institute
State current vortex sensor, low-frequency velocity sensor, pressure and differential pressure transmitter, photoelectric sensor electrical connection.
The advantages of the utility model and good effect are：The Hydropower Unit dynamic signalling analysis device is by portable number
Formed according to Acquisition Instrument and test analysis terminal, Portable data acquisition instrument gathers and exports the vibration of Hydropower Unit in real time, throw,
Pressure fluctuation, rotating speed and related duty parameter signal, test analysis terminal are adopted by TCP/IP Ethernets with portable data
Collect instrument and carry out signal transmission, vibration, throw, pressure fluctuation, rotating speed and related duty parameter to Hydropower Unit are monitored, managed
Reason and analysis, while Portable data acquisition instrument is sensed with current vortex sensor, low-frequency velocity respectively by four core coaxial fittings
Device, pressure and differential pressure transmitter, photoelectric sensor carry out signal connection, and sensor power supply is built-in with Portable data acquisition instrument
Power supply；The Hydropower Unit dynamic signalling analysis device can accurate measurement and analysis turbine-generator units frame vibration, big
Shaft displacement, pressure fluctuation and duty parameter, and various standard stability trials, transitional experiment and other correlated performances can be carried out
Experiment, accuracy is high, convenient and swift, accurately can quickly obtain the running status of Hydropower Unit, to understand machine unit characteristic and lookup
Failure cause provides direct basis.
Brief description of the drawings
Fig. 1 is the structural representation for the Hydropower Unit dynamic signalling analysis device that the utility model embodiment provides.
In figure：1st, Portable data acquisition instrument；1-1, current vortex sensor；1-2, low-frequency velocity sensor；1-3, pressure
And differential pressure transmitter；1-4, photoelectric sensor；2nd, TCP/IP Ethernets；3rd, test analysis terminal.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows.
Structure of the present utility model is explained in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the Hydropower Unit dynamic signalling analysis device includes：
For gathering and exporting vibration, throw, pressure fluctuation, rotating speed and the related duty parameter signal of Hydropower Unit in real time
Portable data acquisition instrument 1；
Signal transmission is carried out by TCP/IP Ethernets 2 and Portable data acquisition instrument 1, for receiving portable data
Vibration, throw, pressure fluctuation, rotating speed and the related duty parameter signal that Acquisition Instrument 1 exports, vibration, throw to Hydropower Unit,
The test analysis terminal 3 that pressure fluctuation, rotating speed and related duty parameter are monitored, manage and analyzed.
Portable data acquisition instrument 1 becomes with current vortex sensor 1-1, low-frequency velocity sensor 1-2, pressure and differential pressure respectively
Device 1-3, photoelectric sensor 1-4 is sent to carry out signal connection.
Portable data acquisition instrument 1 by four core coaxial fittings respectively with current vortex sensor 1-1, low-frequency velocity sensor
1-2, pressure and differential pressure transmitter 1-3, photoelectric sensor 1-4 carry out signal connection.
Sensor power supply is built-in with Portable data acquisition instrument 1, sensor power supply passes with current vortex respectively
Sensor 1-1, low-frequency velocity sensor 1-2, pressure and differential pressure transmitter 1-3, photoelectric sensor 1-4 electrical connection.
The composition of the Hydropower Unit dynamic signalling analysis device：
The Hydropower Unit dynamic signalling analysis device is used to measuring and analyze the frame vibration of turbine-generator units, big
Shaft displacement, pressure fluctuation and duty parameter, and various standard stability trials, transitional experiment and other correlated performances can be carried out
Experiment.
The Hydropower Unit dynamic signalling analysis device is made up of Portable data acquisition instrument 1 and test analysis terminal 3,
Gather in real time and show vibration, throw, pressure fluctuation, rotating speed and related duty parameter, various data are monitored, manage and
Analysis.Portable data acquisition instrument 1 it is compact-sized, carry built-in sensors power supply, pass through TCP/IP Ethernets 2 will
Data are sent to test analysis terminal 3.
Signal connects：Spot sensor signal or duty parameter are directly connected to the rear board of Portable data acquisition instrument 1.
Rear board can input 1 road key signal (photoelectric sensor 1-4 and current vortex sensor 1-1), 8 road main shaft runouts or axial displacement
Signal (0~-24V), 12 road frame vibration signals (± 12V), 12 tunnel pressure fluctuations or working condition signal (4-20mA, 0-5V, switch
Node).
All signals can be accessed by four core coaxial fittings, and grafting is convenient；Portable data acquisition instrument 1 can carry to sensor
For required working power, there are+24V, -24V ,+12V and -12V.
Data acquisition：Portable data acquisition instrument 1 is to all signals using synchronous parallel sampling complete cycle mode or continuous
Parallel sampling mode, sample mode can be set.For removal of load, amide percarbonate process, using continuous sampling mode, for stable state
Process, using normal rolling mode.AD conversion precision is 14Bit, and single channel AD conversion speed can expire up to 20kHz
The status monitoring and field test of all Hydropower Units of foot need.
In not outside key signal, coherent signal can be acquired by the key signal of internal settable rotating speed
And corresponding analysis is carried out, this brings great convenience for the relevant parameter monitoring of some units.
Data storage：The electric board (standard configuration 16G) of Large Copacity built in Portable data acquisition instrument 1, except for storing inside
Routine data, it may also be used for interim storage field test data.
Data are also storable in test analysis terminal 3, the limitation of the hard-disk capacity of memory capacity tested person analysing terminal 3,
Continuous 24 hours uninterrupted sampling needs can be met.
The function of the Hydropower Unit dynamic signalling analysis device：
Real time monitoring function：1 road key signal and the vibration of 32 tunnels, throw, pressure fluctuation and duty parameter can be monitored simultaneously
(active/reactive power, exciting current/pressure, guide vane opening etc.), the peak-to-peak value, average value, 1X of related monitoring parameters are calculated in real time
Amplitude and phase, real time spectrum, and with form, rod figure, real-time tendency, time domain waveform, real time spectrum, orbit of shaft center, shafting appearance
The data and set state that the mode Real time dynamic display such as state figure is monitored, interface is abundant directly perceived, unit information and running status
It is very clear.
Data analysis function：Can provide waveform analysis, spectrum analysis, trajectory analysis, main shaft posture analysis, trend analysis,
A variety of dedicated analysis instruments such as correlation analysis, waterfall map analysis, continuous wave analysis, available for analysis unit in steady-state operation
Vibration, throw, pressure fluctuation and the related duty parameter data that journey stores to system in transient process, to evaluate unit in stable state
State change during operation and in transient process, to help to grasp the operation conditions of unit in time and find failure.
All analysis tools can be combined as needed, and the data analyzed also can be selected independently.
Trend analysis function：Complete trend analysis function is provided, can show all monitoring parameters real-time tendency and
Historical trend, be advantageous to grasp the feature of the newest running status of unit and transient process in time.Monitoring parameters may be selected, selected
Monitoring parameters can be shown on independent coordinate, can also be shown in same coordinate.A certain model can conveniently be amplified in figure
Enclose interior trend.
Abscissa and ordinate in trend analysis instrument can be selected arbitrarily, so as to generate set steady ginseng
Number and the correlation performance curve between rotating speed, load, head, exciting current, excitation voltage, to understand machine unit characteristic and looking into
Failure cause is looked for provide direct basis.By trend analysis instrument, dynamic unit, test report of steady-state behaviour and various can be generated
Characteristic curve：Vibration, throw, pressure fluctuation are with rotation speed change curve；Vibration, throw, pressure fluctuation are with excitation change curve；Shake
Dynamic, throw, pressure fluctuation are with load variations curve；Vibration, throw, pressure fluctuation are with guide vane opening change curve；Any two ginseng
Number correlation curve.
Performance test：Automatically various field tests can be completed or by human assistance, as set steady experiment (becomes and turned
Speed experiment, become exciting test, load change test), Unit Commitment machine experiment (unit opens machine process, stopping process), transient process
Experiment (overspeed test, load dump test), dynamic balance running and Relative Efficiency Test etc..
Load dump test：Automatic decision load rejection state is switched by the active power signal and machine set outlet of collection
And enter the quick recording drainage pattern of removal of load.Also can be adopted by manually starting load dump test into the quick recording of removal of load
Integrated mode.It is not required to do any other operation during load dump test, automatic decision removal of load terminates, and also can at any time interrupt and get rid of
Load test.
Amide percarbonate：Can be by gathering tach signal automatic decision unit overrun condition, and enter quick recording of overrunning and adopt
Integrated mode.Also amide percarbonate can be manually started, into quick recording drainage pattern of overrunning.During amide percarbonate, it is not required to do
Any other operation, can automatic decision overrun end, can also interrupt amide percarbonate at any time.
Start and stop is tested：Can be by the tach signal automatic decision Unit Commitment machine process of collection, also can be in data on the spot
Acquisition station manually starts start and stop experiment, into the quick recording drainage pattern of start and stop process.During start and stop experiment not
Any other operation need to be done, meeting automatic decision off-test, can also interrupt start and stop experiment at any time.
Stability test：Can be by the automatic storage stability that gathers the change of tach signal, excitation signal or load signal
Process data is tested, and variable speed process can be analyzed by correlation analysis tool, becomes excitation process and each stabilization of variable speed process
Property monitoring parameters variation tendency, the influence to set steady of analysis mechanical factor, electromagnetic factors and hydraulic factors.
By analyzing the vibration under different load operating mode, throw and pressure fluctuation data characteristics, using providing performance curve
Auto-Generation Tool, the characteristic curve of projection unit unstable period characteristic can be obtained by being not required to the operation of complexity, grasp unit
Unsteady operating conditions area and special vibrating area.
Dynamic balance running：Unit mechanical imbalance and the unbalanced overweight angle of magnetic pull and weightless angle can be readily obtained,
So as to instruct spot dynamic balance.The Hydropower Unit dynamic signalling analysis device additionally provides a set of based on influence coefficient
The synthesis dynamic balance calculation method of method, auxiliary Field Force are rapidly completed spot dynamic balance counterweight, while also provide influence coefficient meter
The utilities such as calculation, vector plus and minus calculation, residual vibration estimation.
The dynamic balance calculation algorithm is in big-and-middle-sized water power such as Three-Gorges Right Bank Power Station, Datang Pengshui Power Station, Longma Power Stations
Successfully used on unit, the good using effect of tool.
Other experiments：By gathering related duty parameter, the Hydropower Unit dynamic signalling analysis device can aid in
Tested into various correlated performances.Such as by gathering or being manually entered active power, spiral case differential pressure and working head, machine can be obtained
Flow, relative efficiency and water consumption rate, auxiliary complete efficiency test；Such as by gathering Weng'an biota, stator leak can be calculated
Amount.
Data storage and management：The Hydropower Unit dynamic signalling analysis device for Hydropower Unit operation characteristic and
Scene needs, and devises special data storage method, can meet the monitoring analysis needs at scene and long-term data storage, can
To be used as on-line monitoring system.Data storage procedure can automatically exempt from operation data storage, and all data refer to according to user
Title packing storage is named, and data readback can be carried out.
The data storage of the Hydropower Unit dynamic signalling analysis device employs constant duration storage, deposited by hand
Storage, test data store three kinds of modes.Constant duration storage mode is mainly used in stable operation of unit state, can record stable
The vibration variation tendency of unit during operation.Storage thinks to need log-on data during data storage to deposit for onsite application personnel by hand
Storage.Test data storage is mainly used in storing various test datas.
The data storage capacity of the Hydropower Unit dynamic signalling analysis device can meet live long-time data storage
Needs.Each field test data, which can be backuped to easily, carries out off-line analysis on other computers, there is provided it is supporting from
Line analysis function is analyzed and diagnosed to Backup Data for user.
The Hydropower Unit dynamic signalling analysis device provides corresponding setting, can be directed to each test assignment and set phase
Tunnel name, calibration parameter, data storage method and memory gap, test name and the type answered and corresponding display interface
Parameter etc., all arrange parameters will be stored automatically.
Artificial duty parameter input：The Hydropower Unit dynamic signalling analysis device provides corresponding manual typing parameter
Mode, input parameter can be dissolved into the data structure of automatic data collection automatically, common parameters data analysis.
Printing and report：The Hydropower Unit dynamic signalling analysis device provides powerful preview, printing function.User
Can be as needed, to choose the arbitrary region in interface and carry out preview and printing, the title and explanation during printout can be changed,
Stamp with the size can be scaled；All forms in interface can carry out preview and printing in the form of form, in form
Data can be saved in a manner of WORD, EXCEL, text etc. in storage dish.Experiment report can be customized as needed simultaneously
Table, test data can automatic computing, report curve possess automatic Fitting draw function.
Technical indicator：
Input channel：
Throw or displacement passage：8 (current vortex sensor 1-1,0~-24V)；
Vibrating channel：12 (low-frequency velocity sensor 1-2, ± 12V)；
Duty parameter：12 (pressure and differential pressure transmitter 1-3,4~20mA signals, 0~5V signals, switching signals)；
Key phase passage：1 (current vortex sensor 1-1 and photoelectric sensor 1-4)；
Measurement range：
Rotating speed：1~1000rpm；
Throw：0~2000 μm；
Vibration：- 500~500 μm；
Pressure or operating mode：4~20mA, 0-5V or switching node；
Measurement accuracy：
AD digital-to-analogue conversions：14；
Speed error≤0.1rpm；
Trueness error≤0.5%；
Phase error ＜ ± 1 degree；
Frequency error ＜ ± 0.2%；
Effectively analysis frequency：0.1~1500Hz, 1/32~256 frequency multiplication；
Communication interface：10/100M Ethernet interfaces；
Nominal service condition：
Power reguirements:180-264VAC, 47-63Hz, power consumption ＜ 50W；
Environment temperature:0 DEG C~50 DEG C；
Ambient humidity:10%~95%；
Size：Wide 255mm × high 185mm × deep 305mm；
Weight：5kg.
The Hydropower Unit dynamic signalling analysis device that the utility model embodiment provides, by Portable data acquisition instrument
1 and test analysis terminal 3 form, Portable data acquisition instrument 1 gathers and exports the vibration of Hydropower Unit in real time, throw, pressure
Pulsation, rotating speed and related duty parameter signal, test analysis terminal 3 pass through TCP/IP Ethernets 2 and portable data acquisition
Instrument 1 carries out signal transmission, and vibration, throw, pressure fluctuation, rotating speed and related duty parameter to Hydropower Unit are monitored, managed
Reason and analysis, while Portable data acquisition instrument 1 by four core coaxial fittings respectively with current vortex sensor 1-1, low-frequency velocity
Sensor 1-2, pressure and differential pressure transmitter 1-3, photoelectric sensor 1-4 carry out signal connection, in Portable data acquisition instrument 1 in
It is equipped with sensor power supply；The Hydropower Unit dynamic signalling analysis device can accurate measurement and analysis turbine-generator units
Frame vibration, main shaft runout, pressure fluctuation and duty parameter, and various standard stability trials, transitional experiment can be carried out
Tested with other correlated performances, accuracy is high, convenient and swift, accurately can quickly obtain the running status of Hydropower Unit, to understand
Machine unit characteristic and lookup failure cause provide direct basis.
Described above is only to preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, it is every according to the technical essence of the utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, is belonged in the range of technical solutions of the utility model.
Claims (4)
- A kind of 1. Hydropower Unit dynamic signalling analysis device, it is characterised in that the Hydropower Unit dynamic signalling analysis Device includes：For gathering and exporting vibration, throw, pressure fluctuation, rotating speed and the related duty parameter signal of Hydropower Unit in real time just Take formula data collecting instrument；Signal transmission is carried out by TCP/IP Ethernets and the Portable data acquisition instrument, for receiving the portable number Vibration, throw, pressure fluctuation, rotating speed and the related duty parameter signal exported according to Acquisition Instrument, vibration, pendulum to Hydropower Unit The test analysis terminal that degree, pressure fluctuation, rotating speed and related duty parameter are monitored, manage and analyzed.
- 2. Hydropower Unit dynamic signalling analysis device as claimed in claim 1, it is characterised in that the portable data Acquisition Instrument carries out signal company with current vortex sensor, low-frequency velocity sensor, pressure and differential pressure transmitter, photoelectric sensor respectively Connect.
- 3. Hydropower Unit dynamic signalling analysis device as claimed in claim 2, it is characterised in that the portable data Acquisition Instrument by four core coaxial fittings respectively with current vortex sensor, low-frequency velocity sensor, pressure and differential pressure transmitter, photoelectricity Sensor carries out signal connection.
- 4. Hydropower Unit dynamic signalling analysis device as claimed in claim 2, it is characterised in that the portable data Sensor power supply is built-in with Acquisition Instrument, the sensor power supply is fast with the current vortex sensor, low frequency respectively Spend sensor, pressure and differential pressure transmitter, photoelectric sensor electrical connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720626027.0U CN206756223U (en) | 2017-06-01 | 2017-06-01 | A kind of Hydropower Unit dynamic signalling analysis device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720626027.0U CN206756223U (en) | 2017-06-01 | 2017-06-01 | A kind of Hydropower Unit dynamic signalling analysis device |
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| CN206756223U true CN206756223U (en) | 2017-12-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110096000A (en) * | 2018-01-29 | 2019-08-06 | 天津职业技术师范大学 | A kind of novel high-pressure water washer group analysis device |
| CN111564822A (en) * | 2020-05-21 | 2020-08-21 | 国家电网有限公司 | Cross-domain protection method of generator relay protection device |
| CN112432749A (en) * | 2020-10-16 | 2021-03-02 | 西安理工大学 | Relevance test analysis method for water turbine runner vibration and pressure pulsation |
-
2017
- 2017-06-01 CN CN201720626027.0U patent/CN206756223U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110096000A (en) * | 2018-01-29 | 2019-08-06 | 天津职业技术师范大学 | A kind of novel high-pressure water washer group analysis device |
| CN111564822A (en) * | 2020-05-21 | 2020-08-21 | 国家电网有限公司 | Cross-domain protection method of generator relay protection device |
| CN112432749A (en) * | 2020-10-16 | 2021-03-02 | 西安理工大学 | Relevance test analysis method for water turbine runner vibration and pressure pulsation |
| CN112432749B (en) * | 2020-10-16 | 2023-05-16 | 西安理工大学 | Correlation test analysis method for turbine runner vibration and pressure pulsation |
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