CN105840250B - Turbo-generator Set Vibration protection device and method - Google Patents
Turbo-generator Set Vibration protection device and method Download PDFInfo
- Publication number
- CN105840250B CN105840250B CN201610285598.2A CN201610285598A CN105840250B CN 105840250 B CN105840250 B CN 105840250B CN 201610285598 A CN201610285598 A CN 201610285598A CN 105840250 B CN105840250 B CN 105840250B
- Authority
- CN
- China
- Prior art keywords
- axle
- shakes
- vibration
- threshold
- turbo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Control Of Turbines (AREA)
Abstract
The present invention relates to a kind of Turbo-generator Set Vibration protection device and method; pass through mutual X in 90 °, two eddy current sensors of Y-direction in Turbo-generator Set in pressure rotor bearing; the vibration values of centering pressure rotor are measured; the vibration of rotor is being pressed in being diagnosed to be after tribological failure causes; the method of rotor oscillation is pressed in control to carry out comprehensive descision according to the current load of Vibration Condition and unit; when pressing the vibration of rotor X-direction more than 150 μm in unit, unit performs load shedding；When central pressure rotor X-direction vibration is less than 70 μm, unit can carry out load adjustment.
Description
Technical field
The present invention relates to a kind of Turbo-generator Set Vibration protection device and method.
Background technology
The diagnosis and control of slewing vibration fault be a theory and practice combine closely, based on theory, with
It is practiced as approach, the synthesis sex work for the purpose of solving vibration problem.In Thermal Power Station, slewing is numerous, all kinds of
The slewings such as blower fan, water pump, motor are the important components in heat power generating system.The vibration fault tool of slewing
The features such as having sudden, continuation, harm seriousness, and the solution of Diagnosis for Turbogenerator Sets and control are numerous rotations
Mostly important and urgent in vibration equipment, ascendant trend is presented in the frictional vibration failure of turbine LP rotors in recent years,
Effective vibration control method is particularly important, especially the thermal power plant unit in cold district, and such as Turbo-generator Set exists
Frictional vibration occurs during heat supply, and unit can not shut down overhauled during this period, can only take the measure pair in terms of operation
Vibration Condition is controlled by.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide easy to use, the applicable root diameter scope of one kind greatly,
And the Turbo-generator Set Vibration guard method of convenient scene adjustment rotor-position.
Turbo-generator Set Vibration protection device of the present invention, including：The high pressure rotor of Driven by Coaxial, middle pressure rotor, low pressure
X is mutually perpendicular on rotor, generator amature, the spring bearing of medium pressure rotor, to provided with vibration measurement sensor, to go back to y
The steam turbine SIS connected including the signal processing apparatus being connected with the vibration measurement sensor and the signal processing apparatus
System, the vibration data that the signal processing apparatus is gathered to vibrating sensor is inputted after handling to steam turbine SIS systems,
Rotor real-time vibration data is pressed in acquisition.
Further, the vibration measurement sensor is eddy current sensor.
Further, the signal processing apparatus includes filtering the vibration signal that the vibration measurement sensor is detected
The frequency overlapped-resistable filter of ripple, the frequency overlapped-resistable filter is arranged between the vibration measurement sensor and steam turbine SIS systems.
Further, the signal processing apparatus also includes being connected to described vibration measurement sensor and steam turbine SIS
The A/D converter of system.
Further, the orthogonal x to y to vibration measurement sensor to be built-in, and respectively by respective
Preamplifier be connected with vibration measurement instrument.
Further, the orthogonal x to y to vibration measurement sensor to be external, and respectively directly with outside
The vibration measurement instrument connection connect.
Turbo-generator Set Vibration guard method of the present invention, including
Pressure rotor holds that X shakes to axle, Y-direction axle shakes in acquisition, and centering pressure rotor oscillation is monitored in real time；
Contrast X is shaken to axle and Y-direction axle shakes size,
If X shakes to axle and shaken more than Y-direction axle, judge X shakes whether be more than first threshold to axle,
If X shakes more than X to first threshold to axle, Turbo-generator Set carries out load shedding operation, reached so that X shakes to axle
In predetermined threshold range；
If X shakes less than X to Second Threshold to axle, steam turbine generator carries out load adjustment so that X shaken to axle reach it is predetermined
In threshold range；
If X shakes to axle and shaken less than Y-direction axle, output X alarms to sensor fault, judges that whether Y-direction axle shakes more than Y-direction the
One threshold value,
If Y-direction axle shakes more than Y-direction first threshold, Turbo-generator Set carries out load shedding operation, so that Y-direction axle shakes and reached
In predetermined threshold range；
If Y-direction axle shakes less than Y-direction Second Threshold, steam turbine generator carries out load adjustment so that Y-direction axle shake reach it is predetermined
In threshold range.
Further, described X to first threshold, X to Second Threshold, Y-direction first threshold, Y-direction Second Threshold be through
Test value.
Further, described X to first threshold be 150 μm, X to Second Threshold be 70 μm.
By such scheme, invention Turbo-generator Set Vibration protection device and method are at least with following excellent
Point：
1st, on the premise of pressing rotor to there is frictional vibration in judging 200MW Turbo-generator Sets, by middle pressure rotor
The two mutual eddy current sensors in 90 ° and signal processing apparatus centering pressure rotor installed at bearing carry out real-time vibration acquisition.
2nd, the vibration data gathered in real time delivers to SIS systems, is born with reference to middle pressure rotor original state and unit load
Lotus adjustment operation.
3rd, when central pressure rotor X-direction vibration reaches 150 μm, unit performs load down operation, and central pressure rotor X-direction is shaken
Dynamic when being down to 70 μm, unit can carry out load adjustment.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is Turbo-generator Set Vibration protection device structural representation of the present invention；
Fig. 2 is A-A sectional views.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Embodiment 1
As shown in Fig. 1 to 2, the present embodiment Turbo-generator Set Vibration protection device, including：The high pressure rotor of Driven by Coaxial
1st, middle pressure rotor 2, low pressure rotor 3, generator amature 4, be mutually perpendicular on the spring bearing of medium pressure rotor x to y to setting
There is vibration measurement sensor, the vibration measurement sensor is eddy current sensor.
Also include signal processing apparatus and the signal processing apparatus connection being connected with the vibration measurement sensor
Steam turbine SIS systems, the vibration data that the signal processing apparatus is gathered to vibrating sensor inputs after handling to vapour
Turbine SIS systems, press rotor real-time vibration data in acquisition.
In the present embodiment, the signal processing apparatus includes carrying out the vibration signal that the vibration measurement sensor is detected
The frequency overlapped-resistable filter of filtering and the A/D converter for converting analog signals into data signal, the frequency overlapped-resistable filter, A/
D converters are arranged between the vibration measurement sensor and steam turbine SIS systems.
In the present embodiment, further, the orthogonal x to y to vibration measurement sensor to be external, and point
It is not connected with external steam turbine SIS systems directly.
In actual applications, can also be the orthogonal x to the present embodiment to and y to vibration measurement sensor be
Built-in, and be connected respectively by respective preamplifier with steam turbine SIS systems.
In the present embodiment, on the premise of pressing rotor to there is frictional vibration failure in judging unit, by installed in middle pressure
Mutual two eddy current sensors and fore-lying device in 90 ° at rotor bearing, centering pressure rotor carry out real time on-line monitoring, tie simultaneously
Pressure rotor original state and the current load of unit in 200MW Turbo-generator Sets are closed, structure adjusting is carried out.Central pressure rotor X
When direction frictional vibration value reaches 150 μm, unit performs load shedding operation, and 70 μ are dropped to when pressing the vibration of rotor X-direction in unit
After m, unit can be adjusted load, to reach vibration in controlled range.
Embodiment 2
The present embodiment Turbo-generator Set Vibration guard method, is protected using the Turbo-generator Set Vibration of above-described embodiment 1
Protection unit, method is specifically included：Pressure rotor holds that X shakes to axle, Y-direction axle shakes in acquisition, and centering pressure rotor oscillation is supervised in real time
Survey；
Contrast X is shaken to axle and Y-direction axle shakes size,
If X shakes to axle and shaken more than Y-direction axle, judge X shakes whether be more than first threshold to axle,
If X shakes more than X to first threshold to axle, Turbo-generator Set carries out load shedding operation, reached so that X shakes to axle
In predetermined threshold range；
If X shakes less than X to Second Threshold to axle, steam turbine generator carries out load adjustment so that X shaken to axle reach it is predetermined
In threshold range；
If X shakes to axle and shaken less than Y-direction axle, output X alarms to sensor fault, judges that whether Y-direction axle shakes more than Y-direction the
One threshold value,
If Y-direction axle shakes more than Y-direction first threshold, Turbo-generator Set carries out load shedding operation, so that Y-direction axle shakes and reached
In predetermined threshold range；
If Y-direction axle shakes less than Y-direction Second Threshold, steam turbine generator carries out load adjustment so that Y-direction axle shake reach it is predetermined
In threshold range.
In the present embodiment, described X to first threshold be 150 μm, X to Second Threshold be 70 μm.
In practical situations both, described X is equal to first threshold, X to Second Threshold, Y-direction first threshold, Y-direction Second Threshold
For empirical value.
In the various embodiments described above, reference marker is provided with rotor, reference marker and the phase demodulation of rotor relevant position are sensed
Device is corresponding, and phase demodulation sensor is connected with steam turbine SIS systems.The phase demodulation sensor is current vortex sensor or photoelectric sensing
Device；The corresponding reference marker is groove or cursor.Phase information has distinct physical meaning and directive property, phase (poor)
Change can clearly be divided according to specific mechanical structure or physical media again, therefore, and phase difference analysis can be used as rotor oscillation
" visualization " instrument of fault diagnosis；It whether there is phase interference between signal by dissecting phase difference and can find out rapidly, so as to
The property of vibration fault is more quickly and accurately determined, takes correct measure to be controlled and/or locate vibration fault in time
Reason, is prevented effectively from operation operation and the failure propagation of mistake, substantially reduces troubleshooting cost；Pass through phase difference variation tendency
Analysis can also make accurate vibration equipment fault pre-alarming, if for example, find phase difference there is obvious variation tendency, even if this
When vibration amplitude still without substantially abnormal, reason should be also searched in time, proper treatment measure is taken, should not be unexpected when amplitude
Increase causes device damage or disorderly closedown, so as to effectively take precautions against the generation of pernicious equipment breakdown.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (1)
1. a kind of Turbo-generator Set Vibration guard method, it is characterised in that including
Pressure rotor holds that X shakes to axle, Y-direction axle shakes in acquisition, and centering pressure rotor oscillation is monitored in real time；
Contrast X is shaken to axle and Y-direction axle shakes size, is shaken if X shakes to axle more than Y-direction axle, judges that whether X shakes more than the first threshold to axle
Value, if X shakes more than X to first threshold to axle, Turbo-generator Set carries out load shedding operation so that X shaken to axle reach it is predetermined
In threshold range；If X shakes less than X to Second Threshold to axle, Turbo-generator Set carries out load adjustment, reached so that X shakes to axle
Into predetermined threshold range；If X shakes to axle and shaken less than Y-direction axle, output X alarms to sensor fault, judges whether Y-direction axle shakes
More than Y-direction first threshold, if Y-direction axle shakes more than Y-direction first threshold, Turbo-generator Set carries out load shedding operation, so that Y-direction
Axle, which shakes, to be reached in predetermined threshold range；If Y-direction axle shakes less than Y-direction Second Threshold, Turbo-generator Set carries out load adjustment, with
Make Y-direction axle shake to reach in predetermined threshold range；Described X to first threshold be 150 μm, X to Second Threshold be 70 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285598.2A CN105840250B (en) | 2016-05-03 | 2016-05-03 | Turbo-generator Set Vibration protection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285598.2A CN105840250B (en) | 2016-05-03 | 2016-05-03 | Turbo-generator Set Vibration protection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105840250A CN105840250A (en) | 2016-08-10 |
| CN105840250B true CN105840250B (en) | 2017-11-03 |
Family
ID=56590549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610285598.2A Active CN105840250B (en) | 2016-05-03 | 2016-05-03 | Turbo-generator Set Vibration protection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840250B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285799B (en) * | 2016-08-23 | 2017-08-08 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of rotor oscillation guard method decomposed based on harmonic component |
| 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 |
| CN109612722A (en) * | 2018-12-12 | 2019-04-12 | 北京振测智控科技有限公司 | A kind of bearing of turbo generator set misaligns the diagnosis and method of adjustment of failure |
| CN111852577A (en) * | 2020-07-07 | 2020-10-30 | 大唐巩义发电有限责任公司 | Air pump vibration protection device and protection method thereof |
| CN114252145A (en) * | 2020-09-25 | 2022-03-29 | 上海电气电站设备有限公司 | Axial vibration on-line testing system and method for steam turbine generator unit |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706356A (en) * | 2009-12-04 | 2010-05-12 | 北京英华达软件工程有限公司 | Device and method for automatically displaying vibration signal characteristics of turbo generator unit |
| CN201765055U (en) * | 2010-08-23 | 2011-03-16 | 山东中实易通集团有限公司 | Shafting vibration phase difference aided diagnosis system of steam turbine generator unit |
| CN102087139B (en) * | 2010-11-24 | 2012-10-10 | 华北电力大学 | Method for analyzing frequency components of low-frequency vibration of steam turbine generator unit in real time |
| CN203879555U (en) * | 2014-05-06 | 2014-10-15 | 大唐鲁北发电有限责任公司 | Steam turbine vibration protection device |
| CN104727866B (en) * | 2015-01-31 | 2016-07-06 | 浙江浙能中煤舟山煤电有限责任公司 | The control method of the chaser accident that prevention Steam Flow Excited Vibration on Steam Turbine causes |
| CN104806303A (en) * | 2015-04-13 | 2015-07-29 | 吉林省电力科学研究院有限公司 | Vibration protection method for steam turbine generator unit |
| CN205027438U (en) * | 2015-08-28 | 2016-02-10 | 中国神华能源股份有限公司 | Turbo generator set's vibration detection device and turbo generator set |
-
2016
- 2016-05-03 CN CN201610285598.2A patent/CN105840250B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105840250A (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105840250B (en) | Turbo-generator Set Vibration protection device and method | |
| US10298100B2 (en) | Shaft-mounted monitor for monitoring rotating machinery | |
| CN203414278U (en) | System for detecting abnormal condition of vibration of hydroelectric generating set in real time | |
| WO2017088215A1 (en) | Method and system for collecting vibration phase signal of nuclear reactor cooling pump | |
| Jamil et al. | Technical communication of Condition Monitoring System of hydroelectric generating unit of HPP | |
| CN107084843B (en) | A kind of shaft vibration monitoring method and device | |
| CN111289897B (en) | Motor monitoring system | |
| CN103575326A (en) | Compact-type wind turbine generator set signal detection device and method | |
| CN107191405A (en) | A kind of blast furnace blower temperature monitoring method and system | |
| CN103149869A (en) | Systems and methods for use in monitoring an industrial facility | |
| CN205593707U (en) | Turbo generator set high -and medium -voltage rotor dynamic balance optimizing apparatus | |
| JP2009133810A (en) | Vibration monitoring device | |
| CN205858424U (en) | Turbo-generator Set Vibration protection device | |
| CN105865713B (en) | Turbo-generator Set High inter case dynamic balancing optimizes device and method | |
| CN202350908U (en) | Intelligent monitor for vibration and temperature | |
| CN104236910A (en) | Testing system for CT scanner rotary disc bearing | |
| CN205176191U (en) | Transformer winding deformation test system | |
| CN110285748A (en) | Tip clearance calibration measuring system and method based on shrouded blade coupling feature | |
| CN207571518U (en) | Mine ventilator monitoring device | |
| CN214304143U (en) | Monitoring and control system | |
| CN109470934B (en) | Input phase loss detection method and detection system thereof | |
| CN202350728U (en) | Monitor for axial displacement | |
| CN212254562U (en) | Vibration monitoring system for moving blade of steam turbine | |
| CN207315713U (en) | Blower fan system | |
| CN103728527A (en) | System for monitoring fault of loop on multi-bus section of direct current system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 3195, Jilin high tech Zone Wei Shan Road, Changchun, Jilin Patentee after: Datang northeast electric power test and Research Institute Co., Ltd. Address before: No. 3195, Jilin high tech Zone Wei Shan Road, Changchun, Jilin Patentee before: DATANG NORTHEAST ELECTRIC POWER TEST RESEARCH INSTITUTE CO., LTD. |