CN106679599A - Hydroelectric set axis measurement device - Google Patents
Hydroelectric set axis measurement device Download PDFInfo
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- CN106679599A CN106679599A CN201611094329.4A CN201611094329A CN106679599A CN 106679599 A CN106679599 A CN 106679599A CN 201611094329 A CN201611094329 A CN 201611094329A CN 106679599 A CN106679599 A CN 106679599A
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- 238000005259 measurement Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 claims abstract description 43
- 239000000523 sample Substances 0.000 claims abstract description 35
- 230000005611 electricity Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 11
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000012517 data analytics Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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Abstract
The invention discloses a hydroelectric set axis measurement device. The hydroelectric set axis measurement device comprises an angle measurement device, a plurality of throw measurement devices and a computer. The angle measurement device and the throw measurement devices wirelessly exchange data with the computer. In operation, a photoelectric encoder collects a spindle rotation angle value, a throw internal processing device transmits collected data to the computer, a probe I and a probe II are adjusted, the throw measurement devices are started, the throw internal processing device transmits data collected by the probe I and the probe II to the computer, and the computer analyzes and processes the data. The hydroelectric set axis measurement device is high in measurement precision, artificial data processing errors are avoided, any angle throw measurement can be realized, throw values of each monitoring point can be acquired in real time in a turning process, turning data analytic processing can be quickly completed by background data analytic processing software, a throw coordinate curve is drawn to make it convenient for axis analysis, and accordingly labor intensity is relieved for workers, and operation efficiency is improved.
Description
Technical field
The present invention relates to Hydropower Unit installation and repairing field, more particularly to a kind of Hydropower Unit shaft centerline measurement device.
Background technology
Turning gear of unit is highly important link in hydroelectric power plant's units' installation service work, is divided by jiggering data
Analysis, check unit axial mass, for axial adjustment and each guide bearing gap calculating, distribution foundation, jiggering quality are provided
Directly influence axial mass.If axial mass is bad, or the locus adjustment of axis operating is improper, or in each portion's bearing
Heart position is misaligned, and main shaft will produce excessive swing in operation, causes rotatable parts out-of-balance force to increase, fixed component
Vibration aggravation etc., deteriorates bearing service condition, the safe and stable operation of serious threat unit.
During Hydropower Unit jiggering, first have to measure axis data, prior art, " jiggering " of unit is all to use to pass
8 isogonism jiggering methods of system, the method is at the thrust collar of rotatable parts, main shaft to be divided into the axle of, i.e., eight at 8 points
Number.During jiggering, the exact residence at each axle number successively, and check that whether main shaft, in free state, is then surveyed with dial gauge
Amount main shaft it is upper lead, the throw data that flange and water are led etc., calculate the net throw that flange and water are led, then pressed on squared paper
The ratio set in advance, draws out the net throw curve that flange and water are led respectively.The big of throw maximum is determined according to the curve
Small, orientation, and processed.But because unit rotatable parts quality is high, inertia big, in operation, randomness is larger, standard
Really rest on certain specific axle number upper extremely difficult, be not that to turn over head be exactly to turn not in place, make jiggering data and specific axis number
Correspondence is inaccurate, increases the error that jiggering throw is calculated, and reduces jiggering quality so that the judgement to jiggering throw size and orientation
With certain blindness, the difficulty of next step axial adjustment is directly affects, most cases are the increase in the weight of axial adjustment
Again count, be delayed the straight line duration, the unreliability of data can also cause service work Quality Down sometimes, the safety to unit is steady
Fixed operation hides some dangers for.
Multiple spot random angle jiggering technology：Domestic some hydroelectric power plants done in terms of turning gear of unit quality is improved many explorations and
Research, but the processing links of jiggering data are concentrated mainly on, the measurement result that 8 jiggerings of tradition are obtained is by curve matching
Method obtains throw characteristic curve, then, maximum throw value and its orientation is determined by the curve.Because this method is in data
Collection aspect cannot ensure the reliability of jiggering data, meanwhile, during axial adjustment, the control of cushioning or scraping amount is depended entirely on
The experience of technical staff, error is very big, therefore, it is unobvious to improving jiggering mass action.For " multiple spot random angle jiggering ", though
It is proposed that correlation theory, but in the work of actual jiggering, be not applied also.
2003 Nian Wuxi river power plant lead unit axis treatment software and carry out unit axis using the suspension type three of independent development
Treatment, the software by simulation curve, rejecting abnormalities point, introduces curve reliability, output immediately most according to mechanical jiggering data
Good axial adjustment direction and numerical value, and pre-control is realized to the throw after treatment, through the machine of Hunan zhen Hydropower Station 3 and yellow altar water power
Stand No. 4 machine overhaul jiggering practical applications, effect is preferable.For many disadvantages existed using general measuring method, such as measurement side
Method efficiency is low, measurement means (equipment) precision is low, data reliability is poor, influenceed larger etc. by subjective and objective factor, water power in 2004
" photovoltaic measurement " is employed in the work of Three Gorges left bank 1# units' installations eight innings, as a result show in measuring speed, measurement result
Accuracy, measuring environment are on aspect effect is significants such as measurement result influences.It is therefore contemplated that using advanced e measurement technology and communication skill
Art is when can solve the problems, such as using traditional jiggering method in DATA REASONING link.
The content of the invention
The purpose of the present invention is that the defect that overcome above-mentioned prior art to exist, and provides a kind of Hydropower Unit axis
Measurement apparatus, so as to avoid measurement error present in previous methods, reduce artificial operation element, reduce staff
Labour intensity, accelerate jiggering progress, reliability is high, it is also possible to practical for the measurement of large-scale rotatable parts circularity.
The present invention is made up of angle measurement unit, several throw measurement apparatus and computer, angle measurement unit sum
Individual throw measurement apparatus wirelessly carry out data exchange with computer respectively；
Angle measurement unit include angle inter-process device, photoelectric encoder, data wire and photoelectric encoder support and
Encoder interface circuit, photoelectric encoder support is fixedly installed on oil groove, and photoelectric encoder is arranged on photoelectric encoder support
Upper end, and with the same axle center of main shaft, encoder interface circuit is fixedly installed in angle inter-process device, and photoelectric encoder leads to
Data wire is crossed to be connected in encoder interface circuit；
There is microprocessor, wireless module, keyboard, display, signal projector, electricity in the angle inter-process device
Source and battery, wireless module, keyboard, display, power supply and battery are connected with microprocessor respectively, signal projector connection
On wireless module；
Throw measurement apparatus include throw inter-process device, fine adjustment stage I, data wire, fine adjustment stage II, probe I, spy
First II, current vortex sensor I, current vortex sensor II and A/D interface circuits, A/D interface circuits are fixedly installed on inside throw
In processing unit, current vortex sensor I and current vortex sensor II are connected with A/D interface circuits respectively, and probe I is arranged on micro-
On leveling platform I, probe II is arranged in fine adjustment stage II, II X, the perpendicular orientation of Y-direction on the same plane of probe I and probe
Set, probe I and popping one's head in II is connected by data wire with throw inter-process device respectively, throw inter-process device and angle
Degree inter-process device composition structure is identical；
There is signal receiver, signal projector is engaged with signal receiver on computer.
Operation principle of the invention：
When using, as needed, at least one throw measurement apparatus are selected, when several throw measurement apparatus are selected, number
The sensor probe of individual throw measurement apparatus must vertically on the same axis, respectively by angle measurement unit and throw measurement dress
Put and put specified location, then photoelectric encoder is connected on main shaft, open the power supply of throw measurement apparatus, treat that start is laggard
Enter main menu, check whether (upper and lower, water is led) of angle measurement unit and throw measurement apparatus be correct, if incorrect, according to
The position of measurement end where sensor probe, into main menu adjustment, other parameters typically keep default value；If imprudence is repaiied
Changed the default value in addition to position, can factory reset, into the main menu of throw measurement apparatus, selection " adjustment probe " choosing
, the distance of probe and tested surface is then manually adjusted, make shift value (not require to be necessarily adjusted to 1000 μ at 1000 μm or so
M, closer to better), after adjusting initial displacement, into the main menu of throw measurement apparatus, selection " starts preheating ", waits
30min is preheated, and after the completion of preheating, into the main menu of throw measurement apparatus, selection " starts preheating ", waits to be tested；
The power supply of angle measurement unit is connected, into main menu selection " starting test ", waits to be tested, data radio station mould
Block is connected to computer by USB, opens cranking system data acquisition software, clicks on and searches test lead, it is ensured that each test point
In measurement and control network, if measurement end is not found, whether check measurement end is set correctly, to be checked to find all measurements
Just the collection of jiggering data can be carried out behind port；
In instrument is with table, for reduces cost, generally using the switch of contact as input equipment, but in operation
When, due to the elastic reaction of mechanical contact, its closed and disconnected be not it is so preferable, that is, button jitter phenomenon, this
The method that invention employs software eliminates shake, after CPU detection button displacement signals, calls the delay function just can be real
Existing, the delay time of usual delay function is designed to 10~20ms；
When angle measurement unit works, turn on the power, photoelectric encoder is concentric with main shaft to be rotated, main axis, photoelectricity is compiled
The angular values of measurement are transferred to throw inter-process by code device collection main axis angular values by encoder interface circuit
The data of collection are transferred to computer by device, throw inter-process device；
When throw measurement apparatus work, the distance of probe I and main shaft is adjusted by fine adjustment stage I, by fine adjustment stage II
The distance of pop one's head in II and main shaft, probe I and II X, the perpendicular orientation setting of Y-direction on the same plane of popping one's head in are adjusted, after having adjusted,
Start throw measurement apparatus, then the throw data of collection be transferred in throw inter-process device by A/D interface circuits,
The data of collection are transferred to computer by throw inter-process device, and computer is analyzed and processing data.
Beneficial effects of the present invention：
1st, certainty of measurement of the present invention is high, it is to avoid the error of artificial data treatment, is respectively observed using displacement sensor
The throw of point, photoelectric encoder measures the corresponding angle of each measuring point, improves the accuracy of measurement, and reducing artificial meter reading may
The error brought, measurement data is sent to host computer using data radio station mode, it is to avoid cumbersome field wiring, reduces work
Personnel labor intensity, installs and uses more convenient and quicker, while the interference noise that long-distance cable transmission belt can be avoided, improves
The stability and precision of displacement measurement；
2nd, the throw measurement of the achievable random angle of the present invention, traditional artificial jiggering generally only chooses eight points and carries out throw
Measurement, after introducing wireless data acquisition system, it is possible to achieve 360 ° measure at any angle, it is to avoid due to measurement position during jiggering
Put the inaccurate influence to jiggering quality for causing；
3rd, data of the present invention are real-time, visual treatment, using wireless data acquisition system, can be with Real-time Collection jiggering mistake
The throw value of each monitoring point in journey, meanwhile, the data analyzing and processing software on backstage can be and be rapidly completed at the analysis of jiggering data
Reason, draws throw coordinate curve, is easy to axis-line analysis；
4th, the present invention can provide practicable axial adjustment opinion, accelerate barring speed.Carrying out Data processing, energy
Enough jiggering data according to collection, carry out throw and calculate analysis, the handling suggestion of axis trimming are provided, to the technical staff at scene
To instruct, it is to avoid due to the calculation error that manual calculation may bring, therefore, according to the guidance of demonstration, can be more accurately complete
Into jiggering task, processing speed is improved.
5th, it is of the invention to improve power station, the flexibility of unit operation using significantly shorten maintenance duration, improve maintenance matter
Amount, makes the security and stability of unit operation be guaranteed, and reduces the workload of regular maintenance.
Brief description of the drawings
Structural representation when Fig. 1 is present invention work.
Fig. 2 is the workflow schematic diagram of angle measurement unit of the present invention.
Fig. 3 is the workflow schematic diagram of throw measurement apparatus of the present invention.
Fig. 4 is keyboard operation principle schematic diagram of the present invention.
Fig. 5 is the shake waveform diagram of keyboard of the present invention.
Fig. 6 is inventive sensor current vortex sensor output characteristic curve figure.
Fig. 7 is the curve matching forms figure of data processing of the present invention.
Fig. 8 is turning gear of unit data acquisition results forms figure of the present invention.
Fig. 9 is the axial adjustment suggestion forms figure that data processing software of the present invention is given.
Specific embodiment
Refer to shown in Fig. 1, Fig. 2 and Fig. 3, the present invention is by angle measurement unit 1, several throw measurement apparatus 2 and meter
Calculation machine 3 is constituted, and angle measurement unit 1 and several throw measurement apparatus 2 wirelessly carry out data friendship with computer 3 respectively
Change；
Angle measurement unit 1 includes angle inter-process device 11, photoelectric encoder 12, data wire 13 and photoelectric encoder
Support 14 and encoder interface circuit 15, photoelectric encoder support 14 are fixedly installed on oil groove 41, and photoelectric encoder 12 is installed
In the upper end of photoelectric encoder support 14, and with the same axle center of main shaft 4, encoder interface circuit 15 be fixedly installed on angle inside at
In reason device 11, photoelectric encoder 12 is connected in encoder interface circuit 15 by data wire 13；
There is microprocessor 111, wireless module 112, keyboard 113, display in the angle inter-process device 11
114th, signal projector 115, power supply 116 and battery 117, wireless module 112, keyboard 113, display 114, power supply 116 and electricity
Pond 117 is connected with microprocessor 111 respectively, signal projector 115 is connected on wireless module 112；
Throw measurement apparatus 2 include throw inter-process device 21, fine adjustment stage I 22, data wire 13, fine adjustment stage II
23rd, probe I 24, probe II 25, current vortex sensor I 26, current vortex sensor II 27 and A/D interface circuits 28, A/D interfaces electricity
Road 28 is fixedly installed in throw inter-process device 21, current vortex sensor I 26 and current vortex sensor II 27 respectively with A/D
Interface circuit 28 is connected, and probe I 24 is arranged in fine adjustment stage I 22, and probe II 25 is arranged in fine adjustment stage II 23, pops one's head in
I 24 X, the perpendicular orientation setting of Y-direction with probe II 25 on the same plane, probe I 24 and probe II 25 pass through data respectively
Line 13 is connected with throw inter-process device 21, and throw inter-process device 21 constitutes structure with angle inter-process device 11
It is identical；
There is signal receiver 31, signal projector 115 is engaged with signal receiver 31 on computer 3.
Operation principle and process that the present invention is implemented：
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, when using, as needed, selection is extremely
Few throw measurement apparatus 2, when several throw measurement apparatus 2 are selected, the sensor probe of several throw measurement apparatus 2 must
Angle measurement unit 1 and throw measurement apparatus 2 vertically on the same axis must be put into specified location respectively, then photoelectricity
Encoder 12 is connected on main shaft 4, opens the power supply of throw measurement apparatus 2, and main menu is entered after starting shooting, and checks angular surveying
Whether (upper and lower, water is led) of device 1 and throw measurement apparatus 2 be correct, if incorrect, is measured according to where sensor probe
The position at end, into main menu adjustment, other parameters typically keep default value；If imprudence have modified the acquiescence in addition to position
Value, can factory reset, into the main menu of throw measurement apparatus 2, then selection " adjustment probe " option manually adjusts spy
Head and the distance of tested surface, make shift value in 1000 μm or so (not requiring to be necessarily adjusted to 1000 μm, closer to better), adjustment
After good initial displacement, into the main menu of throw measurement apparatus 2, selection " starts preheating ", waits 30min preheatings, preheating to complete
Afterwards, into the main menu of throw measurement apparatus 2, selection " starts preheating ", waits to be tested；
The power supply of angle measurement unit 1 is connected, into main menu selection " starting test ", waits to be tested, data radio station
Module is connected to computer by USB, opens cranking system data acquisition software, clicks on and searches test lead, it is ensured that each test point
In all in measurement and control network, if measurement end is not found, whether check measurement end is set correctly, to be checked to find all surveys
Just the collection of jiggering data can be carried out behind amount port；
In instrument is with table, for reduces cost, generally using the switch of contact as input equipment, but in operation
When, due to the elastic reaction of mechanical contact, its closed and disconnected be not it is so preferable, that is, button jitter phenomenon, this
The method that invention employs software eliminates shake, after CPU detection button displacement signals, calls the delay function just can be real
Existing, the delay time of usual delay function is designed to 10~20ms；
When angle measurement unit 1 works, 116 are turned on the power, photoelectric encoder 12 is concentric with main shaft 4 to be rotated, 4 turns of main shaft
Dynamic, the collection rotational angle numerical value of main shaft 4 of photoelectric encoder 12 transmits the angular values of measurement by encoder interface circuit 15
To throw inter-process device 21, the data of collection are transferred to computer 3 by throw inter-process device 21；
When throw measurement apparatus 2 work, the distance of probe I 24 and main shaft 4 is adjusted by fine adjustment stage I 22, by fine setting
The adjustment of platform II 23 probe II 25 and the distance of main shaft 4, probe I 24 are perpendicular with pop one's head in II 25 X on the same plane, Y-direction
Orientation is set, and after having adjusted, starts throw measurement apparatus 2, and then the throw data of collection are transferred to by A/D interface circuits 28
In throw inter-process device 21, the data of collection are transferred to computer 3 by throw inter-process device 21, and computer 3 is carried out
Analysis and processing data.
Claims (2)
1. a kind of Hydropower Unit shaft centerline measurement device, it is characterised in that：It is by angle measurement unit (1), several throws measurement dress
Put (2) and computer (3) composition, angle measurement unit (1) and several throw measurement apparatus (2) wirelessly respectively with calculating
Machine (3) carries out data exchange.
The angle measurement unit (1) includes angle inter-process device (11), photoelectric encoder (12), data wire (13) and light
Photoelectric coder support (14) and encoder interface circuit (15), photoelectric encoder support (14) are fixedly installed on oil groove (41),
Photoelectric encoder (12) installed in photoelectric encoder support (14) upper end, and with main shaft (4) same axle center, encoder interface circuit
(15) it is fixedly installed in angle inter-process device (11), photoelectric encoder (12) is connected to encoder by data wire (13)
On interface circuit (15)；
The throw measurement apparatus (2) include throw inter-process device (21), fine adjustment stage I (22), data wire (13), fine setting
Platform II (23), probe I (24), probe II (25), current vortex sensor I (26), current vortex sensor II (27) and A/D interfaces
Circuit (28), (28 are fixedly installed in throw inter-process device (21) A/D interface circuits, current vortex sensor I (26) and electricity
Eddy current sensor II (27) is connected with A/D interface circuits (28) respectively, and probe I (24) is arranged in fine adjustment stage I (22), visits
First II (25) is arranged in fine adjustment stage II (23), and probe I (24) is perpendicular with pop one's head in II (25) X on the same plane, Y-direction
Orientation is set, and probe I (24) and probe II (25) are connected by data wire (13) with throw inter-process device (21) respectively,
Throw inter-process device (21) is identical with angle inter-process device (11) composition structure；
There is signal receiver (31), signal projector (115) is engaged with signal receiver (31) on the computer (3).
2. a kind of Hydropower Unit shaft centerline measurement device according to claim 1, it is characterised in that：The angle inter-process
There is microprocessor (111), wireless module (112), keyboard (113), display (114), signal projector in device (11)
(115), power supply (116) and battery (117), wireless module (112), keyboard (113), display (114), power supply (116) and electricity
Pond (117) is connected with microprocessor (111) respectively, signal projector (115) is connected on wireless module (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094329.4A CN106679599A (en) | 2016-12-02 | 2016-12-02 | Hydroelectric set axis measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094329.4A CN106679599A (en) | 2016-12-02 | 2016-12-02 | Hydroelectric set axis measurement device |
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| CN106679599A true CN106679599A (en) | 2017-05-17 |
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| CN201611094329.4A Pending CN106679599A (en) | 2016-12-02 | 2016-12-02 | Hydroelectric set axis measurement device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157107A (en) * | 2020-02-05 | 2020-05-15 | 胡令江 | High-stability generator swing measuring device |
| CN113883068A (en) * | 2021-09-28 | 2022-01-04 | 江苏省水利科学研究院 | Method and system for detecting main shaft throw of vertical water pump unit |
| CN114251998A (en) * | 2021-11-12 | 2022-03-29 | 扬州大学 | Self-adaptive full-angle swing measuring device and method for variable-speed turning gear |
| CN115060209A (en) * | 2022-04-13 | 2022-09-16 | 南昌工程学院 | Shafting throw measurement and adjustment calculation system of full-automatic vertical hydroelectric generating set |
| CN115077364A (en) * | 2022-05-13 | 2022-09-20 | 华电电力科学研究院有限公司 | Device and method for measuring axis of hydroelectric generating set |
| CN117932192A (en) * | 2024-03-25 | 2024-04-26 | 南方电网调峰调频发电有限公司检修试验分公司 | Digital intelligent-based hydroelectric generating set axis processing method and device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157107A (en) * | 2020-02-05 | 2020-05-15 | 胡令江 | High-stability generator swing measuring device |
| CN113883068A (en) * | 2021-09-28 | 2022-01-04 | 江苏省水利科学研究院 | Method and system for detecting main shaft throw of vertical water pump unit |
| CN114251998A (en) * | 2021-11-12 | 2022-03-29 | 扬州大学 | Self-adaptive full-angle swing measuring device and method for variable-speed turning gear |
| CN115060209A (en) * | 2022-04-13 | 2022-09-16 | 南昌工程学院 | Shafting throw measurement and adjustment calculation system of full-automatic vertical hydroelectric generating set |
| CN115060209B (en) * | 2022-04-13 | 2024-05-28 | 南昌工程学院 | Full-automatic vertical hydroelectric generating set shafting swing degree measurement and adjustment calculation system |
| CN115077364A (en) * | 2022-05-13 | 2022-09-20 | 华电电力科学研究院有限公司 | Device and method for measuring axis of hydroelectric generating set |
| CN117932192A (en) * | 2024-03-25 | 2024-04-26 | 南方电网调峰调频发电有限公司检修试验分公司 | Digital intelligent-based hydroelectric generating set axis processing method and device |
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Application publication date: 20170517 |