CN105865713A - Dynamic balance optimizing device and method for high-medium-pressure rotor of steam turbine generator unit - Google Patents
Dynamic balance optimizing device and method for high-medium-pressure rotor of steam turbine generator unit Download PDFInfo
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- CN105865713A CN105865713A CN201610285579.XA CN201610285579A CN105865713A CN 105865713 A CN105865713 A CN 105865713A CN 201610285579 A CN201610285579 A CN 201610285579A CN 105865713 A CN105865713 A CN 105865713A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005259 measurement Methods 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 23
- 239000003550 marker Substances 0.000 claims description 9
- 238000005457 optimization Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000002372 labelling Methods 0.000 claims 1
- 238000010835 comparative analysis Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000003745 diagnosis Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to a dynamic balance optimizing device and method for a high-medium-pressure rotor of a steam turbine generator unit. Two eddy-current transducers which are installed on two supporting bearings of the high-medium-pressure rotor of a steam turbine and are at 90 degrees to each other in the X direction and the Y direction and a front-end device monitor vibration of the high-medium-pressure rotor in real time, real-time data and historical data of vibration are transmitted to a TDM system and also transmitted to an offline vibration meter to be compared, and after the vibration state of the high-medium-pressure rotor is accurately evaluated through comparative analysis, dynamic balancing is conducted on the high-medium-pressure rotor by utilizing the chance of unit shutdown overhauling until a vibration value reaches the excellent level. According to the dynamic balance optimizing method, the impulse starting time number of the unit can be decreased.
Description
Technical field
The present invention relates to a kind of Turbo-generator Set High inter case dynamic balancing and optimize device and side
Method.
Background technology
The diagnosis of slewing vibration fault and control be a theory and practice combine closely, with
Based on theory, to be practiced as approach, comprehensive work for the purpose of solving vibration problem.
In Thermal Power Station, slewing is numerous, and all kinds of blower fans, water pump, motor etc. rotate and set
Standby is the important component part in heat power generating system.The vibration fault of slewing has burst
The feature such as property, persistence, harm seriousness, and the solution of Diagnosis for Turbogenerator Sets and
Control is mostly important and urgent in the vibration of numerous slewing, Turbo-generator Set dynamic balancing
Because the factor such as strongly professional, influence factor is many causes the spot dynamic balance of turbine LP rotors to need
Turbine LP rotors is carried out repeatedly red switch, had a strong impact on electricity power enterprise economic benefit and
Dynamic balancing efficiency.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide one can be normal at unit
Run and during start and stop, the vibration to High inter case is measured in real time, accurately surveying
After the state of amount High inter case, compressor emergency shutdown servicing machine is utilized can High inter case to be moved
The Turbo-generator Set High inter case dynamic balance optimization method of balance.
Turbo-generator Set High inter case dynamic balancing of the present invention optimizes device, including: coaxially drive
Dynamic High inter case, low pressure rotor, generator amature, the support shaft of described High inter case
Hold be mutually perpendicular to x to y to being provided with vibration measurement sensor, also include and described vibration
Measure signal processing apparatus and the TDM of described signal processing apparatus connection that sensor connects
System, described signal processing apparatus is defeated after processing the vibration data of vibrating sensor collection
Entering to TDM system, described TDM system connects the High inter case according to the output of TDM system
Vibration data analyzes the vibrations analyzer of rotor vibrations fault, and described TDM system stores senior middle school
Pressure rotor history vibration data and the acquisition real-time vibration data of High inter case, storage；
Also include that off-line instrument, described off-line instrument are connected with described signal processing apparatus.
Further, described vibration measurement sensor is eddy current sensor.
Further, described signal processing apparatus includes detecting described vibration measurement sensor
The frequency overlapped-resistable filter that vibration signal is filtered, described frequency overlapped-resistable filter be arranged on described in shake
Between dynamic measurement sensor and TDM system.
Further, described signal processing apparatus also includes being connected to described vibration measurement sensing
Device and the A/D converter of TDM system.
Further, described orthogonal x to being built-in with y to vibration measurement sensor,
And be connected with TDM system by respective preamplifier respectively.
Further, described orthogonal x is to being external with y to vibration measurement sensor
, and be directly connected with external TDM system respectively.
Further, the spring bearing of described High inter case is provided with reference marker, with reference to mark
Remembering corresponding with the phase demodulation sensor of rotor relevant position, phase demodulation sensor is with TDM system even
Connect.
Further, described phase demodulation sensor is current vortex sensor or photoelectric sensor；Described
Corresponding reference marker is groove or cursor.
Turbo-generator Set High inter case dynamic balance optimization method of the present invention, utilizes claim
Turbo-generator Set High inter case dynamic balancing described in 1 optimizes device, and described method is specifically wrapped
Include: TDM system debug stage and TDM system detection-phase, wherein TDM system debug rank
Section, including:
S1 off-line instrument, TDM system are connected with signal processing apparatus respectively, obtain height respectively
The vibration data of the High inter case under the different operating state of middle pressure rotor；
The vibration data of the High inter case that off-line instrument is obtained by S2 obtains with TDM system
The vibration data of High inter case takes difference,
If this difference is in predetermined threshold range, do not process；
If this difference is beyond in predetermined threshold range, then adjust the operational factor of TDM system,
Repeat the above steps S1, S2；
TDM system detection-phase, including: utilize two at High inter case two spring bearing
Individual vibration measurement sensor the most in 90 ° is monitored the vibration data of High inter case in real time and send
To TDM system, determine vibration data and the state of High inter case, utilize compressor emergency shutdown chance
High inter case is carried out spot dynamic balance.
By such scheme, invention Turbo-generator Set High inter case dynamic balancing is excellent
Gasifying device and method at least have the advantage that
1, two eddy current sensors the most in 90 ° are installed at High inter case two spring bearing
And the real-time vibration data of High inter case is acquired by fore-lying device, delivers to TDM system and turn
Turn to historical data.
2, by tdm data is compared with off-line vibrometer, high pressure is determined
The indeed vibrations data of rotor.
3, grasp High inter case true, accurately after vibration data, utilize unit to stop
Machine overhauling chance, carries out field high-speed dynamic balancing to High inter case, dynamic not flat exclusively for unit
Weigh and independent red switch rotor, save fund for electricity power enterprise.
Described above is only the general introduction of technical solution of the present invention, in order to better understand this
Bright technological means, and can be practiced according to the content of description, below with the present invention relatively
Good embodiment and coordinate accompanying drawing describe in detail as after.
Accompanying drawing explanation
Fig. 1 is that Turbo-generator Set High inter case dynamic balancing of the present invention optimization apparatus structure shows
It is intended to；
Fig. 2 is that Turbo-generator Set High inter case dynamic balancing of the present invention optimization apparatus structure shows
It is intended to.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is made the most in detail
Describe.Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
Embodiment 1
The present embodiment Turbo-generator Set High inter case dynamic balancing optimizes device, including: coaxial
The High inter case 1 of driving, low pressure rotor 2, generator amature 3, described High inter case
Spring bearing on be mutually perpendicular to x to y to being provided with vibration measurement sensor, also include with
Signal processing apparatus and described signal processing apparatus that described vibration measurement sensor connects connect
The TDM system connect, the vibration data of vibrating sensor collection is entered by described signal processing apparatus
Row inputs after processing to TDM system, and described TDM system connects defeated according to TDM system
The High inter case vibration data haveing analyzes the vibrations analyzer of rotor vibrations fault, described
TDM system stores High inter case history vibration data and obtains the real-time of High inter case
Vibration data, storage.Also include off-line instrument, described off-line instrument and described signal processing device
Put connected.
In the present embodiment, described vibration measurement sensor is eddy current sensor.Described signal processing
It is anti-aliasing that device includes that the vibration signal detecting described vibration measurement sensor is filtered
Wave filter and convert analog signals into the A/D converter of digital signal, described anti-aliasing filter
Ripple device, A/D converter are arranged between described vibration measurement sensor and TDM system.
Described orthogonal x is to being external with y to vibration measurement sensor, and respectively
Directly it is connected with external TDM system.
In the present embodiment, during and Unit Commitment machine properly functioning at unit, by senior middle school
On pressure rotor two spring bearing, the most in 90 ° two eddy current sensor and fore-lying device are installed, right
The vibrational state of High inter case carries out real time on-line monitoring and historical data delivers to TDM system,
By carrying out vibration data relative analysis with off-line instrument, accurately judge the state of High inter case,
Utilize compressor emergency shutdown chance, in conjunction with the vibration historical data of High inter case, to High inter case
Carry out dynamic balancing, during reducing dynamic balancing of hydropower unit, control the red switch number of times of unit.
Embodiment 2
The present embodiment Turbo-generator Set High inter case dynamic balancing optimizes device, with embodiment 1
The difference is that only, described orthogonal x to y to vibration measurement sensor is
Built-in, and be connected with TDM system by respective preamplifier respectively.
Embodiment 3
The present embodiment Turbo-generator Set High inter case dynamic balance optimization method, utilizes above-mentioned reality
Executing the Turbo-generator Set High inter case dynamic balancing described in example and optimize device, described method is concrete
Including: TDM system debug stage and TDM system detection-phase, wherein TDM system is adjusted
The examination stage, including:
S1 off-line instrument, TDM system are connected with signal processing apparatus respectively, obtain height respectively
The vibration data of the High inter case under the different operating state of middle pressure rotor；
The vibration data of the High inter case that off-line instrument is obtained by S2 obtains with TDM system
The vibration data of High inter case takes difference,
If this difference is in predetermined threshold range, do not process；
If this difference is beyond in predetermined threshold range, then adjust the operational factor of TDM system,
Repeat the above steps S1, S2；
TDM system detection-phase, including: utilize two at High inter case two spring bearing
Individual vibration measurement sensor the most in 90 ° is monitored the vibration data of High inter case in real time and send
To TDM system, determine vibration data and the state of High inter case, utilize compressor emergency shutdown machine
High inter case can be carried out spot dynamic balance.
Embodiment 4
The present embodiment Turbo-generator Set High inter case dynamic balancing optimizes device, in embodiment 1
On the basis of, the spring bearing of described High inter case is provided with reference marker, reference marker with
The phase demodulation sensor of rotor relevant position is corresponding, and phase demodulation sensor is connected with TDM system.
Described phase demodulation sensor is current vortex sensor or photoelectric sensor；The reference marker of described correspondence
For groove or cursor.
In the present embodiment, the spring bearing of High inter case is provided with reference marker, with reference to mark
Remembering corresponding with the phase demodulation sensor of the spring bearing relevant position of High inter case, phase demodulation senses
Device is connected with TDM system.Described phase demodulation sensor is current vortex sensor or photoelectric sensor；
The reference marker of described correspondence is groove or cursor.Phase information have distinctness physical meaning and
Directivity, phase place (poor) change again can be according to concrete frame for movement or physical media by clearly
Clear division, therefore, phase contrast analysis can be as " visualization " work of turbine rotator breakdown diagnosis
Tool；By dissecting phase contrast can find out rapidly whether there is phase interference between signal, it is thus possible to more
Add the character determining vibration fault quickly and accurately, take correct measure to vibration fault in time
It is controlled and/or processes, being prevented effectively from operation operation and the failure propagation of mistake, significantly
Reduce troubleshooting cost；Equipment accurately also can be made by the analysis of phase contrast variation tendency
Vibration fault early warning, such as, if finding there is obvious variation tendency, even if now in phase contrast
Vibration amplitude is still the most abnormal, also should search reason in time, take suitable treatment measures,
Do not wait until that amplitude increases suddenly and cause device damage or disorderly closedown, thus effectively take precautions against pernicious
The generation of equipment breakdown.
The above is only the preferred embodiment of the present invention, is not limited to the present invention, should
When pointing out, for those skilled in the art, without departing from the technology of the present invention
On the premise of principle, it is also possible to make some improvement and modification, these improve and modification also should regard
For protection scope of the present invention.
Claims (9)
1. a Turbo-generator Set High inter case dynamic balancing optimizes device, it is characterised in that
Including: the High inter case of Driven by Coaxial, low pressure rotor, generator amature, described high pressure
Be mutually perpendicular on the spring bearing of rotor x to y to being provided with vibration measurement sensor, also wrap
Include the signal processing apparatus being connected with described vibration measurement sensor and described signal processing device
Put the TDM system of connection, the vibration number that vibrating sensor is gathered by described signal processing apparatus
According to inputting after processing to TDM system, described TDM system connects according to TDM system
The High inter case vibration data of system output analyzes the vibrations analyzer of rotor vibrations fault, described
TDM system stores High inter case history vibration data and obtains the real-time of High inter case
Vibration data, storage；
Also include that off-line instrument, described off-line instrument are connected with described signal processing apparatus.
Turbo-generator Set High inter case dynamic balancing the most according to claim 1 optimizes
Device, it is characterised in that described vibration measurement sensor is eddy current sensor.
Turbo-generator Set High inter case dynamic balancing the most according to claim 1 optimizes
Device, it is characterised in that described signal processing apparatus includes examining described vibration measurement sensor
The frequency overlapped-resistable filter that the vibration signal surveyed is filtered, described frequency overlapped-resistable filter is arranged on institute
State between vibration measurement sensor and TDM system.
Turbo-generator Set High inter case dynamic balancing the most according to claim 3 optimizes
Device, it is characterised in that described signal processing apparatus also includes being connected to described vibration measurement
Sensor and the A/D converter of TDM system.
Turbo-generator Set High inter case dynamic balancing the most according to claim 1 optimizes
Device, it is characterised in that described orthogonal x to y to vibration measurement sensor is
Built-in, and be connected with TDM system by respective preamplifier respectively.
Turbo-generator Set High inter case dynamic balancing the most according to claim 1 optimizes
Device, it is characterised in that described orthogonal x to y to vibration measurement sensor is
External, and be directly connected with external TDM system respectively.
Turbo-generator Set High inter case dynamic balancing the most according to claim 1 optimizes
Device, it is characterised in that the spring bearing of described High inter case is provided with reference marker, ginseng
Examine labelling corresponding with the phase demodulation sensor of rotor relevant position, phase demodulation sensor and TDM system
System connects.
Turbo-generator Set High inter case dynamic balancing the most according to claim 7 optimizes
Device, it is characterised in that described phase demodulation sensor is current vortex sensor or photoelectric sensor；
The reference marker of described correspondence is groove or cursor.
9. a Turbo-generator Set High inter case dynamic balance optimization method, it is characterised in that
The Turbo-generator Set High inter case dynamic balancing described in claim 1 is utilized to optimize device, institute
The method of stating specifically includes: TDM system debug stage and TDM system detection-phase, wherein
The TDM system debug stage, including:
S1 off-line instrument, TDM system are connected with signal processing apparatus respectively, obtain height respectively
The vibration data of the High inter case under the different operating state of middle pressure rotor；
The vibration data of the High inter case that off-line instrument is obtained by S2 obtains with TDM system
The vibration data of High inter case takes difference,
If this difference is in predetermined threshold range, do not process；
If this difference is beyond in predetermined threshold range, then adjust the operational factor of TDM system,
Repeat the above steps S1, S2；
TDM system detection-phase, including: utilize two at High inter case two spring bearing
Individual vibration measurement sensor the most in 90 ° is monitored the vibration data of High inter case in real time and send
To TDM system, determine vibration data and the state of High inter case, utilize compressor emergency shutdown machine
High inter case can be carried out spot dynamic balance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285579.XA CN105865713B (en) | 2016-05-03 | 2016-05-03 | Turbo-generator Set High inter case dynamic balancing optimizes device and method |
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|---|---|---|---|
| CN201610285579.XA CN105865713B (en) | 2016-05-03 | 2016-05-03 | Turbo-generator Set High inter case dynamic balancing optimizes device and method |
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| CN105865713B CN105865713B (en) | 2019-07-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106979036A (en) * | 2017-04-17 | 2017-07-25 | 大唐东北电力试验研究所有限公司 | Thermal power plant unit block distortion and unit vibration numerical value monitoring method and system |
| CN107060904A (en) * | 2017-05-05 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Steam turbine high back pressure transformation birotor exchanges accuracy guarantee system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979036A (en) * | 2017-04-17 | 2017-07-25 | 大唐东北电力试验研究所有限公司 | Thermal power plant unit block distortion and unit vibration numerical value monitoring method and system |
| CN106979036B (en) * | 2017-04-17 | 2019-03-29 | 大唐东北电力试验研究院有限公司 | Thermal power plant unit block distortion and unit vibration numerical value monitoring method and system |
| CN107060904A (en) * | 2017-05-05 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Steam turbine high back pressure transformation birotor exchanges accuracy guarantee system |
| CN107060904B (en) * | 2017-05-05 | 2023-07-07 | 大唐东北电力试验研究所有限公司 | Double-rotor interchange precision guaranteeing system for high back pressure transformation of steam turbine |
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