CN208751816U - A kind of vibration monitoring device for gas turbine compressor blade and blade - Google Patents
A kind of vibration monitoring device for gas turbine compressor blade and blade Download PDFInfo
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- CN208751816U CN208751816U CN201821450418.2U CN201821450418U CN208751816U CN 208751816 U CN208751816 U CN 208751816U CN 201821450418 U CN201821450418 U CN 201821450418U CN 208751816 U CN208751816 U CN 208751816U
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Abstract
The utility model discloses a kind of vibration monitoring devices for gas turbine compressor blade and blade to obtain the vibration data of compressor blade and blade using Tip-Timing measurement method by the contactless vibration measurement sensor of setting blade tip and speed probe；And in 2~4 movable vane pieces of every grade of compressor selection, foil gauge is designed on blade, the vibration data of 2~4 movable vane pieces is obtained using radio telemetry method, blade vibration data for obtaining with Tip-Timing measurement method compare, analyze the error range of its every grade movable vane piece, the vibration measurement data of every movable vane piece are corrected, every movable vane piece vibration measurement accuracy is improved.
Description
Technical field
The utility model relates to a kind of vibration monitoring devices for gas turbine compressor blade and blade.
Background technique
With the continuous development of China's clean energy resource, gas turbine power plant installed capacity steady-state growth, to ensure combustion gas
The various on-line monitoring technique levels of the safe operation of turbine, gas turbine are also being continuously improved.Compressor blade is combustion gas wheel
The important component of machine, the vibration measurement of compressor blade are one of gas turbine key technologies.Domestic Gas Turbine Combined-cycle
Regulating units, start and stop are frequent, and the failure of compressor blade happens occasionally.Compressor blade needs to do each in design, fabrication stage
Kind vibration-testing, it is practical in investment including the blade vibration characteristic test under static state and the vibration characteristics test under rotation status
After operation, due to test macro complexity, the vibration monitoring of compressor blade is seldom applied in actual set.
The country is less to the vibration monitoring device installation of gas turbine compressor blade and blade, and it is more multiple to be primarily due to system
Miscellaneous, it is larger that data analyze difficulty, but with the continuous improvement of sensor accuracy, data collector and Data Analysis Services hand
The continuous development of section, compressor blade vibration monitor system also continue to develop again.
As gas turbine blower constantly develops to high-power, high efficiency direction, flow, compression ratio are continuously increased, right
The security requirement of compressor blade is also continuously improved.The need of compressor blade and blade vibration monitor system are installed in actual set
Ask more more and more urgent.
Utility model content
The purpose of this utility model is that in view of the above shortcomings of the prior art, providing one kind and calming the anger for gas turbine
The vibration monitoring device of machine blade.
In order to achieve the above objectives, the utility model adopts the following technical solution is achieved:
A kind of vibration monitoring device for gas turbine compressor blade and blade, the gas turbine blower rotor are placed left
On spring bearing and right support bearing, gas turbine blower rotor includes compressor part and Turbine section, and rotor is by combustion gas
Cylinder wraps up under turbine upper cylinder half and gas turbine, is fixedly connected between upper and lower cylinder with cylinder bolt, compressor part and Turbine section
Between along direction of rotation border be evenly arranged several burners；Compressor cylinder is provided with compressor bleeding point；
Spring bearing position is provided with armature spindle vibration displacement sensor, is used for real-time measurement gas turbine blower rotor
Vibration displacement variation；Shaft end is provided with the speed probe for measuring rotor speed；
Foil gauge is arranged in every grade of the compressor several gas compressor moving blade on pieces of selection, is measured using radio telemetry method
The vibration information of every grade of compressor blade and blade；
Punching is equipped with the contactless vibration measurement sensing of blade tip on the corresponding gas turbine cylinder of compressor blade and blade
Device obtains the vibration information of every compressor blade and blade using Tip-Timing measurement method；For comparing radio telemetry method
As a result, the vibration measurement of every grade of 2~4 movable vane pieces of verifying as a result, and carry out error analysis, and then to whole every movable vane piece of circle
Vibration measurement result is modified；
The data that gas turbine blower rotor respectively vibrates measuring point are connected to multi-channel data by vibrating data collection device
Recorder is stored.
The utility model, which further improves, to be, 2~4 gas compressor moving blade on piece arrangements is selected to answer at every grade of compressor
Become piece, perceive the vibration information of blade, and punching is equipped with miniature signal transmitter at the wheel disc of shaft end, for by the vibration of blade
Dynamic information transmitting, is arranged receiving antenna at the corresponding cylinder body in miniature signal transmitter position, and the vibration for receiving blade is believed
Breath, and it is transmitted to receiver, and connect vibrating data collection device and be acquired and store, finally by data analysis system to each
The blade vibration information in channel is analyzed in real time, and real-time display.
The utility model, which further improves, to be, in order to monitor the torsional oscillation situation of compressor blade and blade, installs two groups of leaves
Sharp Time Pick-off Units, one group is installed at the leading edge of blade, for monitoring the Vibration Condition of blades leading edges, another group of installation
In the rear edge of blade, for monitoring the Vibration Condition of blade rear edge, according to the measurement knot of two groups of Tip timing sensors
The displacement of fruit and phase calculation obtain the torsional oscillation situation of blade.
The utility model have it is following the utility model has the advantages that
A kind of vibration monitoring device for gas turbine compressor blade and blade of the utility model, by being arranged, blade tip is non-to be connect
Touch vibration measurement sensor and speed probe obtain the vibration number of compressor blade and blade using Tip-Timing measurement method
According to；And in 2~4 movable vane pieces of every grade of compressor selection, foil gauge is designed on blade, is somebody's turn to do using radio telemetry method
The vibration data of 2~4 movable vane pieces, the blade vibration data for obtaining with Tip-Timing measurement method compare, analysis
The error range of its every grade movable vane piece corrects the vibration measurement data of every movable vane piece, and it is quasi- to improve every movable vane piece vibration measurement
True property.
In conclusion a kind of vibration monitoring device for gas turbine compressor blade and blade of the utility model, solves
The problem that compressor blade and blade on-line monitoring is difficult, accuracy is not high provides a kind of for real-time monitoring compressor blade and blade
The method of vibration being capable of every movable vane of real-time measurement compressor suitable for the vibration monitoring of each gas turbine compressor blade and blade
The Vibration Condition of piece provides real time data for gas turbine compressor blade and blade vibration evaluation, strong to improve compressor blade and blade
Health management level.
Detailed description of the invention
Fig. 1 is the vibration monitoring device schematic diagram of gas turbine compressor blade and blade；
Fig. 2 is compressor grade movable vane piece vibration measurement sensor arrangement schematic diagram；
Fig. 3 is movable vane piece twisting vibration measurement sensor arrangement schematic diagram；
Fig. 4 is movable vane piece vibration monitor system flow chart；
In figure: 1, gas turbine blower rotor；2, left support bearing；3, right support bearing；4, compressor part；5, thoroughly
Flat part；6, gas turbine upper cylinder half；7, cylinder under gas turbine；8, burner；9, compressor bleeding point；10, armature spindle vibration displacement
Sensor；11, speed probe；12, compressor blade and blade；13, the contactless vibration measurement sensor of blade tip；14, foil gauge；
15, miniature signal projector；16, receiving antenna；17 receivers；18, vibrating data collection instrument；19, multi-channel data recorder；
20, data collecting instrument；21, data analysis system；22, the time domain letter of selected 2~4 movable vane pieces vibration of foil gauge measurement
Breath；23, the frequency domain information of selected 2~4 movable vane pieces vibration of foil gauge measurement；24, the time domain of every movable vane piece vibration
Information；25, selected 2~4 movable vane piece vibration informations that Tip-Timing mensuration obtains；26, two methods measurement result
Comparative analysis；27, the result of oscillation for obtaining every movable vane piece to Tip-Timing mensuration is corrected.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to Fig. 1, a kind of vibration monitoring device for gas turbine compressor blade and blade of the utility model, including combustion gas
Turbine compressor rotor 1 is placed on left support bearing 2 and right support bearing 3, and gas turbine blower rotor 1 includes compressor portion
Points 4 and Turbine section 5, rotor wrapped up by cylinder 7 under gas turbine upper cylinder half 6 and gas turbine, it is solid with cylinder bolt between upper and lower cylinder
Fixed connection, has been evenly arranged several burners 8 along direction of rotation border between compressor part 4 and Turbine section 5；In compressor
Cylinder is provided with compressor bleeding point 9.
Spring bearing position is provided with armature spindle vibration displacement sensor 10 to turn for real-time measurement gas turbine blower
The vibration displacement variation of son；In shaft end, setting speed probe 11 measures rotor speed.
Foil gauge 14 is arranged on 2~4 compressor blade and blades 12 of every grade of compressor selection, using radio telemetry method
Measure the vibration information of every grade of 2~4 movable vane pieces.
The contactless vibration measurement sensing of punching installation blade tip on the corresponding gas turbine cylinder of compressor blade and blade 12
Device 13 obtains the vibration information of every compressor blade and blade 12 using Tip-Timing measurement method.Compare radio telemetry method
As a result, the vibration measurement of every grade of 2~4 compressor blade and blades of verifying as a result, and carry out error analysis, and then to every pressure of whole circle
The vibration measurement result of mechanism of qi movable vane piece is modified.
The data that gas turbine blower rotor respectively vibrates measuring point are connected to data analysis by vibrating data collection instrument 18
System 21 is analyzed.
Referring to Fig. 1,2, selects 2~4 gas compressor moving blade on pieces to arrange foil gauge at every grade of compressor, perceive the vibration of blade
Dynamic information, and miniature signal transmitter 15 is installed in punching at the wheel disc of shaft end, and the vibration information of blade is emitted, and is arranged in shaft end
Receiving antenna 16, receives the vibration information of blade, and is transmitted to receiver 17, and connects vibrating data collection instrument 18 and adopted
Collection, data analysis system 21 analyzes the blade vibration information in each channel in real time, and real-time display.
Referring to Fig. 1,2, the punching installation contactless vibration of blade tip on the corresponding gas turbine cylinder of compressor blade and blade
Measurement sensor 13 is arranged revolving speed flow sensor 11 in shaft end to measure revolving speed, obtains every using Tip-Timing measurement method
The vibration information of movable vane piece.Tach signal rotor for each revolution when generate a zero moment reference pulse, each vanes
When crossing blade tip sensor 13, system will record down the arrival time of the blade, and when blade does not vibrate, blade reaches sensor
Moment it is every circle be all it is identical, when have vibration generate when, the arrival time of blade will be variant, to generate the time of arrival
Poor Δ T.The vibration information of blade is measured by analyzing the time difference Δ T of every blade, more sensor comprehensive utilizations can
Measure amplitude, frequency, monitoring crack and the analysis vibration shape of blade vibration.
The movable vane the piece number of compressor grade is n, and the radius of turn of blade is R, when i-th blade is contactless by blade tip
When vibration measurement sensor 13, position is α relative to the angle of revolving speed synchronous pointi, angle is α when not vibrating0, revolving speed Ω；
After rotation speed synchronizing signal reaches, blade i is t by the time of Tip timing sensori, accordingly for the same blade i,
Tip-Timing signal is t relative to the time of blade root synchronization signalbi, then αi=Ω × ti, can acquire vibration displacement is yi=R
(αi-α0)。
Referring to Fig. 3, in order to monitor the torsional oscillation situation of compressor blade and blade 12, need to install two groups of contactless vibrations of blade tip
Measurement sensor 13, one group is installed at the leading edge of blade, for monitoring the Vibration Condition of blades leading edges, another group of installation
In the rear edge of blade, for monitoring the Vibration Condition of blade rear edge.It is passed according to the contactless vibration measurement of two groups of blade tips
The measurement result of sensor 13 can calculate the torsional oscillation situation of blade.
Referring to fig. 4, by the blade tip in the time-domain information 24 for obtaining the vibration of every movable vane piece using Tip-Timing measurement method
Selected 2~4 of selected 2~4 movable vane piece vibration informations 25 and the foil gauge measurement that Timing measurement method obtains are dynamic
The frequency domain information 23 of selected 2~4 movable vane pieces vibration of time-domain information 22 and the foil gauge measurement of blade vibration carries out
Comparison verifies the vibration measurement of every grade of 2~4 movable vane piece Tip-Timing measurement methods as a result, and carrying out two methods measurement knot
The comparative analysis 26 of fruit, and then the vibration measurement result of every movable vane piece of whole circle is corrected, then carry out to Tip-Timing
Mensuration obtains the result of oscillation amendment 27 of every movable vane piece, and carries out data output display.
Claims (3)
1. a kind of vibration monitoring device for gas turbine compressor blade and blade, which is characterized in that the gas turbine blower
Rotor (1) is placed on left support bearing (2) and right support bearing (3), and gas turbine blower rotor (1) includes compressor part
(4) it is wrapped up with Turbine section (5), rotor by cylinder (7) under gas turbine upper cylinder half (6) and gas turbine, uses cylinder between upper and lower cylinder
Bolt is fixedly connected, and has been evenly arranged several burners along direction of rotation border between compressor part (4) and Turbine section (5)
(8)；Compressor cylinder is provided with compressor bleeding point (9)；
Spring bearing position is provided with armature spindle vibration displacement sensor (10), is used for real-time measurement gas turbine blower rotor
Vibration displacement variation；Shaft end is provided with the speed probe (11) for measuring rotor speed；
Foil gauge (14) are arranged on every grade of the compressor several compressor blade and blades (12) of selection, using radio telemetry method
Measure the vibration information of every grade of compressor blade and blade；
Punching is equipped with the contactless vibration measurement sensing of blade tip on the corresponding gas turbine cylinder of compressor blade and blade (12)
Device (13), the vibration information of every compressor blade and blade (12) is obtained using Tip-Timing measurement method；For comparing radio
The method of telemetering as a result, every grade of 2~4 movable vane pieces of verifying vibration measurement as a result, and carry out error analysis, and then to whole every, circle
The vibration measurement result of movable vane piece is modified；
The data that gas turbine blower rotor respectively vibrates measuring point are connected to multi-channel data by vibrating data collection device (18)
Recorder (19) is stored.
2. a kind of vibration monitoring device for gas turbine compressor blade and blade according to claim 1, feature exist
In selecting 2~4 gas compressor moving blade on pieces to arrange foil gauges at every grade of compressor, perceive the vibration information of blade, and in shaft end
Punching is equipped with miniature signal transmitter (15) at wheel disc, for emitting the vibration information of blade, in miniature signal transmitter
Receiving antenna (16) are set at the corresponding cylinder body in position, for receiving the vibration information of blade, and are transmitted to receiver (17), and
Connection vibrating data collection device (18) is acquired and stores, and shakes finally by blade of the data analysis system (21) to each channel
Dynamic information is analyzed in real time, and real-time display.
3. a kind of vibration monitoring device for gas turbine compressor blade and blade according to claim 1, feature exist
In in order to monitor the torsional oscillation situation of compressor blade and blade (12), two groups of Tip timing sensors (13) of installation, one group is installed on leaf
At the leading edge of piece, for monitoring the Vibration Condition of blades leading edges, another group of rear edge for being installed on blade, for monitoring
The Vibration Condition of blade rear edge is obtained according to the displacement of the measurement result of two groups of Tip timing sensors (13) and phase calculation
The torsional oscillation situation of blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821450418.2U CN208751816U (en) | 2018-09-05 | 2018-09-05 | A kind of vibration monitoring device for gas turbine compressor blade and blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821450418.2U CN208751816U (en) | 2018-09-05 | 2018-09-05 | A kind of vibration monitoring device for gas turbine compressor blade and blade |
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| Publication Number | Publication Date |
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| CN208751816U true CN208751816U (en) | 2019-04-16 |
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| CN201821450418.2U Active CN208751816U (en) | 2018-09-05 | 2018-09-05 | A kind of vibration monitoring device for gas turbine compressor blade and blade |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731896A (en) * | 2018-09-05 | 2018-11-02 | 西安热工研究院有限公司 | A kind of vibration monitoring device for gas turbine compressor blade and blade |
| CN110375971A (en) * | 2019-07-11 | 2019-10-25 | 北京理工大学 | The accelerated life test device and method of radial flow turbine wheel and compressor impeller |
| CN111636932A (en) * | 2020-04-23 | 2020-09-08 | 天津大学 | Blade crack online measurement method based on blade tip timing and integrated learning algorithm |
| CN112326172A (en) * | 2020-11-23 | 2021-02-05 | 华能国际电力股份有限公司 | Cooling device of gas turbine moving blade non-contact vibration measurement sensor |
-
2018
- 2018-09-05 CN CN201821450418.2U patent/CN208751816U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731896A (en) * | 2018-09-05 | 2018-11-02 | 西安热工研究院有限公司 | A kind of vibration monitoring device for gas turbine compressor blade and blade |
| CN108731896B (en) * | 2018-09-05 | 2024-02-23 | 西安热工研究院有限公司 | Vibration monitoring device for movable blade of gas turbine compressor |
| CN110375971A (en) * | 2019-07-11 | 2019-10-25 | 北京理工大学 | The accelerated life test device and method of radial flow turbine wheel and compressor impeller |
| CN111636932A (en) * | 2020-04-23 | 2020-09-08 | 天津大学 | Blade crack online measurement method based on blade tip timing and integrated learning algorithm |
| CN112326172A (en) * | 2020-11-23 | 2021-02-05 | 华能国际电力股份有限公司 | Cooling device of gas turbine moving blade non-contact vibration measurement sensor |
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