CN206801793U - A kind of detection means for wind power generating set overspeed trip device - Google Patents
A kind of detection means for wind power generating set overspeed trip device Download PDFInfo
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- CN206801793U CN206801793U CN201720632991.4U CN201720632991U CN206801793U CN 206801793 U CN206801793 U CN 206801793U CN 201720632991 U CN201720632991 U CN 201720632991U CN 206801793 U CN206801793 U CN 206801793U
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- trip device
- overspeed trip
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- ammeter
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a kind of detection means for wind power generating set overspeed trip device, including the DC power supplier being engaged, signal generating module, 24V relay module and ammeter, signal generating module electrically connects with tested overspeed trip device, for exporting different analog square wave signals to tested overspeed trip device with the different rotating speeds operating mode of wind-driven generator simulation group wheel hub, DC power supplier is used to power to tested overspeed trip device, ammeter and DC power supplier, 24V relay module and tested overspeed trip device are electrically connected for measuring output current in real time when signal generating module exports analog square wave signal.The utility model has simple and compact for structure, flexible to operation, low manufacture cost, can improve detection operating efficiency, reduce the advantages of artificial intensity.
Description
Technical field
The utility model is mainly concerned with wind-power electricity generation testing equipment field, and in particular to one kind is used for wind power generating set
The detection means of overspeed trip device.
Background technology
At present, hub rotation speed monitoring is made up of 2 overspeed trip devices in a wind power generating set, except to respective turn
Outside fast signal is monitored, system also compares the output current of 2 overspeed trip devices automatically, as current value difference arrives certain journey
Degree, system quote failure.
In wind power generating set operation maintenance maintenance process, blower fan master control report dependent failure, such as wheel hub hypervelocity, rotor system
Dynamic device hypervelocity failure etc., it is thus necessary to determine that whether the performance of overspeed trip device is normal, and due to lacking related detection method, wind field is sold
Attendant can only carry out malfunction elimination by the method for the new spare unit of integral replacing afterwards.This method both wastes Material Cost,
Add artificial intensity and malfunction elimination time.
Utility model content
The technical problem that the utility model solves is：A kind of the problem of existing for prior art, there is provided structure letter
Single compact, flexible to operation, low manufacture cost, can improve detect operating efficiency, reduction artificial intensity is used for wind-power electricity generation
The detection means of unit overspeed trip device.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of detection means for wind power generating set overspeed trip device, including DC power supplier, the letter being engaged
Number module occurs, 24V relay module and ammeter, the signal generating module are electrically connected with tested overspeed trip device, be used for
Different analog square wave signals is exported with the different rotating speeds operating mode of wind-driven generator simulation group wheel hub, institute to tested overspeed trip device
State DC power supplier to be used to power to tested overspeed trip device, the ammeter and DC power supplier, 24V relay module
Electrically connected with tested overspeed trip device for measuring output current in real time when signal generating module exports analog square wave signal.
Further, in the preferred embodiment, the first terminal row's module and Second terminal row's module, the ammeter are additionally provided with
By the first terminal module is arranged to electrically connect with tested overspeed trip device, the Second terminal arrange module respectively with dc source mould
Block, 24V relay module, ammeter and the electrical connection of tested overspeed trip device.
Further, in the preferred embodiment, the DC power supplier is provided with switch module, for tested in regulation
DC power supplier is set to stop power supply during overspeed trip device.
Further, in the preferred embodiment, in addition to detection installing plate, the DC power supplier, 24V relay moulds
Block, tested overspeed trip device, the first terminal row's module and Second terminal row's module are fixed on detection installing plate by fixture
On in order to detecting in real time.
Further, in the preferred embodiment, the fixture includes the installation guide rail crossed on detection installing plate.
Compared with prior art, the utility model has the advantage of：
（1）Detection means of the present utility model for wind power generating set overspeed trip device, simple and compact for structure, operation
Convenient, flexible, operating personnel to tested overspeed trip device when detecting, for wind-powered machine unit hub rotating speed slip ring encoder
Signal, different tach signals is simulated using signal generating module, with reference to tested overspeed trip device internal circuit, by adjusting mould
Intend tach signal frequency, dutycycle, measure the output current of tested overspeed trip device, and observe the sudden strain of a muscle breaking and connecting of corresponding indicator lamp
Tentaculum disjunction, it is final that detection operating efficiency is greatly improved, manually so as to realize the performance detection to being tested overspeed trip device
Detection intensity substantially reduces.
Brief description of the drawings
Fig. 1 is the structural principle signal of the detection means of the present utility model for wind power generating set overspeed trip device
Figure.
Marginal data：
1st, DC power supplier；2nd, signal generating module；3rd, 24V relay module；4th, ammeter；5th, it is tested overspeed trip
Device；6th, the first terminal row module；7th, Second terminal row module；8th, installing plate is detected；9th, fixture.
Embodiment
The utility model is described in further detail below in conjunction with specific embodiments and the drawings.
As shown in figure 1, the utility model provides a kind of detection means for wind power generating set overspeed trip device, including
DC power supplier 1, signal generating module 2,24V relay module 3 and the ammeter 4 being engaged, signal generating module 2 and quilt
Overspeed trip device 5 is surveyed to electrically connect, for exporting different analog square wave signals to tested overspeed trip device 5 with simulating wind power generation
The different rotating speeds operating mode of machine unit hub.DC power supplier 1 selects 24V dc sources, for being supplied to tested overspeed trip device 5
Electricity, ammeter 4 are electrically connected for being sent out in signal with DC power supplier 1,24V relay module 3 and tested overspeed trip device 5
Raw module 2 measures output current in real time when exporting analog square wave signal.In the present embodiment, the preferably luxuriant and rich with fragrance Buddhist nun of 24V relay module 3
Gram this relay, play a part of automatically adjusting in circuit, change-over circuit.The first terminal row's module is additionally provided with the present embodiment
6 and Second terminal row module 7, ammeter 4 by the first terminal arrange module 6 electrically connected with tested overspeed trip device 5, Second terminal
Row's module 7 electrically connects with DC power supplier 1,24V relay module 3, ammeter 4 and tested overspeed trip device 5 respectively, to rise
To the effect of signal transmission.Specific Cleaning Principle is as follows：
During detection operation, operating personnel will first intend tested tested overspeed trip device 5 and above related device and be electrically connected respectively
It is connected to position.Then DC power supplier 1 is first started, now, tested overspeed trip device 5 has been powered, and then the tested hypervelocity of observation is de-
Detain device 5 on Pwr indicator lamps whether Chang Liang.Under normal circumstances, indicator lamp should Chang Liang.Then operating personnel connect signal
The power supply of module 2, according to equipment operation handbook, Regulate signal occurs module 2 and exports square-wave signal, and frequency is in 1Hz.Now close
DC power supplier 1, adjust the surface knob of tested overspeed trip device 5, it is desirable to the Hz of frequency 49, dutycycle 90%, time delay
0.5S, Factor1000mHz.Then DC power supplier 1 is opened again, the square-wave signal lamp being now tested on overspeed trip device 5
Alternately flash, flash speed is slower, the indicator lamp Chang Liang of 24V relay module 3.The reading of ammeter 4 is observed, output current value exists
4 ± 0.5mA or so.Now operating personnel are by signal generating module 2, then increase square-wave signal frequency, are tested overspeed trip device 5
On square-wave signal lamp alternately flash, flash speed accelerate, the indicator lamp Chang Liang of 24V relay module 3, observe the reading of ammeter 4,
Current value constantly increases.
Then again by the frequency regulation button in signal generating module 2, regulation square-wave signal frequency 44.1 ±
0.5Hz.Now, square-wave signal lamp Chang Liang, the 24V relay module 3 being tested on overspeed trip device 5 does not work, and can hear
The tested coil motion of overspeed trip device 5, is measured with universal meter ohms range, finds conducting.The reading of ammeter 4 is observed, current value exists
20mA or so.Then DC power supplier 1 is turned off, adjusts the tested surface knob of overspeed trip device 5, it is desirable to the Hz of frequency 60, account for
Empty ratio 100%, time delay 0.5S, Factor100mHz.
Now module 2 occurs operating personnel for Regulate signal again so that square-wave signal frequency is in 1Hz, opening dc source
Module 1, now, the square-wave signal lamp being tested on overspeed trip device 5 alternately flash, and flash speed is slower, 24V relay module 3
Indicator lamp Chang Liang, the reading of ammeter 4 is observed, current value is in 6.67mA or so.Then signal generating module 2, lasting increase are passed through
Square-wave signal frequency, the square-wave signal lamp being tested on overspeed trip device 5 alternately flash, and flash speed is accelerated, 24V relay module
3 indicator lamp Chang Liang, observe the reading of ammeter 4, and current value constantly increases.
Step-by-step operation by the above process, until signal generating module 2 so that square-wave signal frequency in 70 ± 0.5Hz, this
When, the indicator lamp of square-wave signal lamp Chang Liang, 24V relay module 3 on tested overspeed trip device 5 does not work, and can hear by
The coil motion of overspeed trip device 5 is surveyed, observes the reading of ammeter 4, current value is in 19.97mA or so.Finally disconnect dc source mould
Module 2 occurs for the power supply of block 1, shutdown signal, and detection terminates.
The special scientific design more than, has if any advantage：Structure of the detecting device simple and compact of the present utility model,
Flexible to operation, operating personnel compile when being detected to tested overspeed trip device 5 for wind-powered machine unit hub rotating speed slip ring
Code device signal, different tach signals is simulated using signal generating module 2, with reference to the tested internal circuit of overspeed trip device 5, is passed through
Regulation simulation tach signal frequency, dutycycle, measure the output current of tested overspeed trip device 5, and observe corresponding indicator lamp
Flash, contactor disjunction, it is final to cause detection operating efficiency significantly so as to realize the performance detection to being tested overspeed trip device 5
Improve, artificial detection intensity substantially reduces.
Further, in the preferred embodiment, DC power supplier 1 is provided with switch module, for tested super in regulation
DC power supplier 1 is set to stop power supply during quick release device 5.
Further, in the preferred embodiment, in addition to detection installing plate 8, DC power supplier 1,24V relay module 3,
Tested overspeed trip device 5, the first terminal row's module 6 and Second terminal row's module 7 are fixed on detection installing plate by fixture 9
In order to detecting in real time on 8.In the present embodiment, fixture 9 includes the installation guide rail crossed on detection installing plate 8.Pass through
Detection installing plate 8 and fixture 9 is set so that each device installation is firm, operation during in order to detect regulation.
It the above is only preferred embodiment of the present utility model, the scope of protection of the utility model is not limited merely to above-mentioned
Embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should be pointed out that pair
For those skilled in the art, some improvements and modifications under the premise of the utility model principle is not departed from,
It should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of detection means for wind power generating set overspeed trip device, it is characterised in that including the direct current being engaged
Source module（1）, signal generating module（2）, 24V relay module（3）And ammeter（4）, the signal generating module（2）With quilt
Survey overspeed trip device（5）Electrical connection, for tested overspeed trip device（5）Different analog square wave signals is exported to simulate wind-force
The different rotating speeds operating mode of generating set hub, the DC power supplier（1）For to tested overspeed trip device（5）Power supply, institute
State ammeter（4）With DC power supplier（1）, 24V relay module（3）With tested overspeed trip device（5）Electrical connection for
In signal generating module（2）Output current is measured in real time when exporting analog square wave signal.
2. the detection means according to claim 1 for wind power generating set overspeed trip device, it is characterised in that also set
There is the first terminal to arrange module（6）Module is arranged with Second terminal（7）, the ammeter（4）Module is arranged by the first terminal（6）With quilt
Survey overspeed trip device（5）Electrical connection, the Second terminal arrange module（7）Respectively with DC power supplier（1）, 24V relay moulds
Block（3）, ammeter（4）With tested overspeed trip device（5）Electrical connection.
3. the detection means according to claim 1 for wind power generating set overspeed trip device, it is characterised in that described
DC power supplier（1）It is provided with switch module, in the tested overspeed trip device of regulation（5）When make DC power supplier
（1）Stop power supply.
4. the detection means according to claim 2 for wind power generating set overspeed trip device, it is characterised in that also wrap
Include detection installing plate（8）, the DC power supplier（1）, 24V relay module（3）, tested overspeed trip device（5）, first end
Son row's module（6）Module is arranged with Second terminal（7）Pass through fixture（9）It is fixed on detection installing plate（8）On in order to real-time
Detection.
5. the detection means according to claim 4 for wind power generating set overspeed trip device, it is characterised in that described
Fixture（9）Including crossing at detection installing plate（8）On installation guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632991.4U CN206801793U (en) | 2017-06-02 | 2017-06-02 | A kind of detection means for wind power generating set overspeed trip device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632991.4U CN206801793U (en) | 2017-06-02 | 2017-06-02 | A kind of detection means for wind power generating set overspeed trip device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206801793U true CN206801793U (en) | 2017-12-26 |
Family
ID=60743589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720632991.4U Active CN206801793U (en) | 2017-06-02 | 2017-06-02 | A kind of detection means for wind power generating set overspeed trip device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206801793U (en) |
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2017
- 2017-06-02 CN CN201720632991.4U patent/CN206801793U/en active Active
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