CN207516036U - A kind of gas turbine blower vibration test platform - Google Patents
A kind of gas turbine blower vibration test platform Download PDFInfo
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- CN207516036U CN207516036U CN201720688435.9U CN201720688435U CN207516036U CN 207516036 U CN207516036 U CN 207516036U CN 201720688435 U CN201720688435 U CN 201720688435U CN 207516036 U CN207516036 U CN 207516036U
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Abstract
The utility model is related to a kind of gas turbine blower vibration test platforms, by SFC frequency conversion starters, start motor, test compressor, test-bed, air inlet component, exhaust component, lubricating oil system, pumped vacuum systems, acceleration vibrating sensor, electric vortex vibrating sensor, vibration monitor system forms, the alternating current supply of changeable frequency is started motor by the SFC frequency conversion starters by cable, the startup motor and experiment compressor are coaxially connected by shaft coupling, the air inlet component is connect with experiment compressor inlet, experiment blower outlet is connect with exhaust component entrance；Exhaust pipe at the experiment compressor intergrade setting 3.The utility model can simulate the various operating modes for the machine vibration that causes to calm the anger, and various types are vibrated and carry out feature extraction, so as to pinpoint the problems and be adjusted in time when abnormal vibration occurs in gas turbine blower.
Description
Technical field
The present invention relates to a kind of devices that sunykatuib analysis is carried out for gas turbine blower vibration, can be to gas turbine
The various possible vibration factors of compressor are simulated, and pass through feature extraction and vibration is analyzed, a kind of particularly combustion
Gas-turbine compressor vibration test platform.
Background technology
Common vibration simulation platform is the most direct important means vibrated and learnt to commonly using rotational components,
It is one of important tests equipment for carrying out rotational components diagnosis research work.By Electric Traction, testpieces rotor is dragged
To various rotating speeds, coordinate vibration monitoring equipment, the vibration characteristics of rotary part under various rotating speeds is learnt and analyzed.But
It is many reason of causing gas turbine blower rotor oscillation, common vibration simulation platform only being capable of model rotor injustice
Weighing apparatus, shafting such as misalign at the simple operating mode, compressor surge can not be simulated, for because of bearing fuel feeding and environmental pressure etc.
Caused vibration can not also be simulated.Simultaneously as machine vibration of calming the anger often have to compressor it is certain destructive, therefore
Be difficult to be reappeared in real equipment, by the various influences of synchronous recording calm the anger machine vibration Parameters variation and calm the anger machine vibration
Correlation can carry out further understanding to compressor vibration characteristics.
Invention content
It can not carry out the deficiency of simulation test comprehensively for present day analog testing stand, the present invention provides a kind of test simulations
Platform can simulate the various operating modes that can cause to vibrate to compressor, and pass through vibration analysis equipment and various types are vibrated
Feature extract, can either grasp various types vibration compressor state, and can to various types vibrate know
Not.Its technical solution is：A kind of gas turbine blower vibration test platform, is made of following critical piece：
-- SFC frequency conversion starters；SFC frequency conversion starters pass through rectification and inversion, the variable alternating current supply of output frequency
Start motor, allow the arbitrary stabilization of speed operation between 0~10000rpm of startup motor.
-- start motor, which is an ac variable-frequency electric motor；Start motor output end, by shaft coupling with
Experiment compressor air inlet machine end is coaxially connected.
-- experiment compressor, being one has 3 tunnels to be evacuated multiatage axial flow compressor；The experiment compressor air inlet machine position is equipped with
Adjustable guide vane can adjust restriction characteristic, and then adjust the Air intake characteristics of compressor by adjusting guide vane angle.
The design can adjust compressor air inlet machine flow and the air inlet angle of attack in minimum to maximum magnitude, for being tried under various flow status
The vibration characteristics for testing compressor is simulated.
-- air inlet component；Air inlet component entrance shutter can adjust compressor inlet pressure by regulation blade angle
Environment, for simulating the vibration characteristics that compressor is tested under different atmospheric environmental pressures.
-- exhaust component；Exhaust component has exhaust regulating valve, compressor back pressure can be adjusted, for simulating not
With the vibration characteristics that compressor is tested under compressor back pressure environment.
-- lubricating oil system, the system have vaccum-pumping equipment, can control fuel tank vacuum degree；
-- vibration monitor system；
-- control system.
In the vibration test platform, the SFC frequency conversion starters are opened the alternating current supply of changeable frequency by cable
Dynamic motor, the startup motor and experiment compressor are coaxially connected by shaft coupling, ensure that startup motor and experiment compressor are same
Rotating speed.The air inlet component is connect with experiment compressor inlet, blower outlet, i.e. compressor exhaust end is tested, with exhaust portion
Part entrance connects；Exhaust pipe at the experiment compressor intergrade setting 3, can pass through bleeding regulating respectively in different rotating speeds
Valve is simulated under all kinds of rotating speeds, and different parts are evacuated the influence for machine vibration of calming the anger to experiment.
The lubricating oil system is lubricated by pipeline to experiment compressor bearing, and pumped vacuum systems is mounted on lubricating oil
Vacuum cavitations are carried out to fuel tank in system；The system is in addition to it can be adjusted charge oil pressure, additionally it is possible to pass through vacuum pump pair
Fuel tank carries out vacuum cavitations, overcomes the shortcomings that existing testing stand can only adjust bearing charge oil pressure.Start motor, experiment pressure
Mechanism of qi, air inlet component and exhaust component are mounted on test-bed；
The each bearing portion installation acceleration vibrating sensor of compressor is tested, while a pair of orthogonal electric whirlpool is installed
Flow vibrating sensor；Compressor exhaust end installation electric vortex vibrating sensor is tested, electric vortex vibrating sensor vertical is in experiment
The end face of compressorshaft；Acceleration vibrating sensor, electric vortex vibrating sensor, temperature transmitter and pressure transmitter signal lead to
Cable transmission is crossed to vibration monitor system.
In the vibration test platform, speed probe, vibration sensor signal are output to vibration monitor system, vibration prison
Vibration parameters after extraction characteristic signal are output to control system by examining system simultaneously.At the same time, lubricating oil system, air inlet system
Every measurement parameter in system, exhaust system is output to control system, convenient for carrying out further correlation to institute's gathered data
Analysis.
Preferably, alternating-current variable frequency motor by SFC frequency conversion starters drive multi stage axial flow compressor with 0~
Arbitrary rotating speed operation between 10000rpm, for simulating compressor low speed to the vibration characteristics of high speed section.
Preferably, in each bearing portion of the experiment compressor, it is also equipped with orthogonal a pair of of current vortex
Vibrating sensor, for carrying out analysis of orbit to vibration.
Preferably, acceleration vibrating sensor is installed in the bearing portion, for carrying out spectrum analysis to vibration, together
When the characteristics of low-frequency of compressor surge can effectively be monitored.
Preferably, the experiment compressor further includes exhaust end, and electric vortex vibrating is installed in an axial direction in the exhaust end
Sensor, for the vibration of simulation test compressor rotor axial direction and experiment compressor surge.
Preferably, there is the experiment compressor import guide vane is adjusted, for simulating compressor inlet flow
Influence to machine vibration of calming the anger, and then under quantitative description different rotating speeds, the vibration corresponding to the adjustable guide vane angle of difference
Feature.
Preferably, the air inlet component further includes shutter, and the angle of regulation range of the shutter is 0~90 °.
By adjusting shutter angle, simulate under varying environment pressure, test the vibration characteristics of compressor.
Preferably, the current vortex proximity sensor, acceleration transducer access the vibration monitor system.
The invention has the advantages that since machine vibration of calming the anger is more with inducement, complicated component is shaken, and with certain broken
Bad property, the characteristics of being not easy to reappear, the present invention can simulate, and to various types the various operating modes for the machine vibration that causes to calm the anger
Vibration carries out feature extraction, so as to pinpoint the problems and carry out in time when abnormal vibration occurs in gas turbine blower
Adjustment.The invention is solved currently since gas turbine blower is using equipment vendors' modular in design, can not be to its vibration characteristics
Carry out the difficulty of quantitative analysis.
Description of the drawings
In order to illustrate more clearly of the present invention, will simply be situated between to attached drawing needed in embodiment description below
It continues.It should be evident that the accompanying drawings in the following description is only the description to the embodiment of the present invention, for ordinary skill
For personnel, without having to pay creative labor, can also simple deformation or title be carried out according to technical solution
Change or take customary means, can also realize goal of the invention.
Fig. 1 gas turbine blower vibration test platform system pie graphs
Fig. 2 tests compressor
Fig. 3 air inlet component figures
Fig. 4 exhaust component figures
Fig. 5 lubricating oil system figures
Fig. 6 measurement system diagrams
In figure：1-SFC frequency conversion starters；2-startup motor；3-air inlet component；4-experiment compressor；5-exhaust
Component；6-lubricating oil system；7-vibration monitor system；8-control system；9-pedestal；41- shaft couplings；421st, 422- axis
It holds；43- adjustable guide vanes；44- compressor rotors；45- compressor housings；461~463- compressor exhaust pipes；471~
473- evacuating valves.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, following embodiment be explanation of the invention and
The invention is not limited in following embodiments.
Embodiment 1
In Fig. 1, SFC frequency conversion starters 1 export variable frequency alternating current to motor 2 is started, and start motor 2 and experiment
Compressor 4 is coaxially connected by shaft coupling 41, and good centering.Meanwhile the experiment compressor 4 carries out good dynamic balancing.By
This excludes to influence due to equipment caused by rotor unbalance and rotor misalignment.The exhaust outlet of air inlet component 3 and experiment compressor 2
Inlet location connection.The exhaust outlet of experiment compressor 4 is connect with exhaust component inlet location.In experiment, opened by SFC frequency conversions
The dynamic driving of device 1 starts motor 2 can the arbitrary stabilization of speed operation between 0~10000rpm of rotating speed.As shown in Fig. 2, experiment pressure
Mechanism of qi 4 has 3 grades of compressor exhaust pipes, and 3 road exhaust pipes are respectively 461,462,463, and a pumping is set per road exhaust pipe
Air valve, 3 evacuating valves are respectively 471,472,473.Experiment compressor 4 has adjustable guide vane 43 simultaneously.Such as Fig. 3,
The air inflow that air inlet component 3 can enter experiment compressor 4 by adjusting 31 angular adjustment of air inlet shutter simulates compressor
Ambient pressure.As shown in figure 4, exhaust component 5 can pass through 52 Adjustment Tests compressor exhaust back pressure of exhaust regulating valve and flow.
Start motor 2, air inlet component 3, experiment compressor 4 and exhaust component 5 to be each attached on pedestal 9.Lubricating oil system 6 can adjust
Supply the air negative pressure around the oil pressure and bearing of bearing.System drives by adjusting the output frequency of SFC frequency conversion starters
Motor frequency conversion operates, and can measure compressor air inlet machine pressure respectively under different rotating speeds, import adjustable guide vane angle, calm the anger
Pumping, the influence of compressor back pressure, sliding bearing oil pressure, fuel tank vacuum degree to rotor oscillation between machine grade.Meanwhile with regard to each adjusting
Vibration under state, vibrating sensor carry out spectrum analysis, Chart of axes track by vibration input vibration monitor system 7, to vibration
Analysis, waterfall map analysis etc., and the characteristic spectrum of each vibration is recorded, and these data are sent to control system 8.
In experiment compressor shown in Fig. 2, the connection of shaft coupling 41 starts motor 2 and experiment compressor 4.The experiment compressor
Meet experiment demand after being centainly transformed for common shaft stream multistage compressor, improved compressor has following function and has
Following functions.
It, can be by compressor inlet air-flow in an axial direction between 0 °~40 ° with compressor inlet adjustable guide vane 43
It adjusts.By adjusting guide vane angle, it can be estimated that influence of the different rotating speeds lower inlet air-flow angle to machine vibration of calming the anger.
With low-pressure stage, 3 grades of compressor exhaust pipes of medium pressure grade and hiigh pressure stage 461,462,463, have on each pipeline
Accordingly can independent control evacuating valve 471,472,473.Under different rotating speeds, separately adjustable high, medium and low voltage evacuating valve,
Influence of the pumping to machine vibration of calming the anger at different levels under different rotating speeds can be assessed.
Tool is disposed with orthogonal 2 electric vortex vibrating sensors there are two sliding bearing 421,422 on each bearing
71st, 72 and 75,76, for monitoring shaft vibration, carry out analysis of orbit.Each bearing arranges 1 acceleration vibration simultaneously
Sensor 73,77 for monitoring vibration of bearings, carries out spectrum analysis, waterfall map analysis.Simultaneously at bearing 421, installation turns
Fast sensor 74, monitors rotating speed of gas compressor in real time, at bearing 422, installation electric vortex vibrating sensor 78, during for monitoring each
Carve the axial vibration of experiment compressor.Bearing 421,422 adjusts the working oil of work bearing by lubrication pressure force regulating valve 64
Pressure, the influence of assessment bearing charge oil pressure shaft vibration.Regulating valve 67 is vacuumized by regulating oil tank and adjusts bearing working atmosphere
The air pressure enclosed, the influence of assessment bearing working ambient pressure shaft vibration.
In figure 3, shutter 31 can be adjusted between 0 °~90 ° at inlet mouth, by angle change change into
Enter the air inflow of compressor and compressor inlet pressure.Air pretreatment unit 32 is one layer of low efficient filter screen, and rear is bee
Nest shape rectification unit.Filter screen first carries out simple filtration to intake air, prevents bulky grain foreign matter and dust damages and pollution
Compressor.Then cellular rectification unit carries out air-flow to change back into compressor inlet through deflector 33 after rectification.Into
Air pressure power transmitter 35 and intake air temperature transmitter 36 distinguish the inlet ambient temperature and pressure of monitoring test compressor 4.More than
Shutter 31, air pretreatment unit 32, deflector 33, admission pressure transmitter 35 and intake air temperature transmitter 36 are installed in
On admission line 34, air inlet component 3 is formed.
In Fig. 4, exhaust regulating valve 52 controls compressor exhaust back pressure by controlling opening of valve, for assessing compressor
Influence of the back pressure to machine vibration of calming the anger.Pressure at expulsion transmitter 53 and delivery temperature transmitter 54 distinguish monitoring test compressor 4
Export environment temperature and pressure.More than exhaust regulating valve 52, pressure at expulsion transmitter 53 and intake air temperature transmitter 54 are pacified
On discharge duct 51, exhaust gas component 5 is formed.The compressed gas with certain temperature and pressure after regulating valve can be for
Other testing equipments are taken.
In Figure 5, grease pump 62 and fuel tank vacuum pumping pump 67 are mounted on grease-box 61.Grease pump 62 passes through set
Oil return line 63 is put into sliding bearing 421,422 fuel feeding, pressure is adjusted by lubrication pressure force regulating valve 64.Fuel tank vacuum degree
Ensured by 67 continuous firing of fuel tank vacuum pumping pump, regulating valve 68 is vacuumized by fuel tank to adjust fuel tank vacuum degree, due to oil
Case is connect with bearing by being set with oil inlet and oil return pipeline 63, therefore fuel tank vacuum of space is equal to bearing ambient air vacuum degree.
Lubrication pressure power transmitter 65 and lubricating oil temperature transmitter 66 monitor the oil temperature supplying and pressure of sliding bearing 421,422 respectively
Power.Fuel tank vacuum degree transmitter 69 monitors the internal environment negative pressure of grease-box 61.
In figure 6, vibration monitor system 7 acquires following a few class vibrations respectively：(1) electric vortex vibrating sensor 71,72 and
75th, 76 respectively obtain bearing 421,422 Relative Vibration.(2) acceleration vibrating sensor 73 and 77 obtain respectively bearing 421,
422 vibration severity.(3) electric vortex vibrating sensor 78 obtains the axial vibration of 422 bearing portion rotors.(3) revolution speed sensing
Device 74 obtains experiment 4 rotating speed of compressor.And vibration is handled, typical vibration performance is obtained, such as spectrogram, orbit of shaft center
Figure, Waterfall plot etc..Control system 8 receives following several during the vibration performance for receiving vibration monitor system transmission
Class systematic survey parameter：(1) admission pressure transmitter 35 and intake air temperature transmitter 36 distinguish the entrance of monitoring test compressor 4
Environment temperature and pressure.(2) monitoring test compressor 4 goes out respectively for pressure at expulsion transmitter 53 and delivery temperature transmitter 54
Choma border temperature and pressure.(3) lubrication pressure power transmitter 65 and lubricating oil temperature transmitter 66 monitor sliding bearing respectively
421st, 422 oil temperature supplying and pressure.Fuel tank vacuum degree transmitter 69 monitors the internal environment negative pressure of grease-box 61.By system
The measurement data of middle sensor is corresponding with vibration performance, so as to which various change factor and corresponding caused vibration is special
It levies corresponding.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, without departing from the inventive concept of the premise, can also make several improvements and modifications, these improvements and modifications also should be regarded as
In protection scope of the present invention.Although the present invention is disclosed as above with embodiment, it is not limited to the protection of the present invention
Range, any technical staff for being familiar with this technology, in the variation and retouching made without departing from the spirit and scope of the invention,
It is within the scope of protection of the invention.
Claims (3)
1. a kind of gas turbine blower vibration test platform, which is characterized in that by SFC frequency conversion starters, start motor, examination
Test compressor, test-bed, air inlet component, exhaust component, lubricating oil system, pumped vacuum systems, acceleration vibrating sensor, electricity
Vortex vibration sensor, vibration monitor system composition, the SFC frequency conversion starters are supplied the alternating current of changeable frequency by cable
To motor is started, the startup motor and experiment compressor are coaxially connected by shaft coupling, and the air inlet component is calmed the anger with experiment
Machine entrance connects, and experiment blower outlet is connect with exhaust component entrance；Exhaust tube at the experiment compressor intergrade setting 3
Road；
The lubricating oil system is lubricated by pipeline to experiment compressor bearing, and pumped vacuum systems is mounted on lubricating oil system
On to fuel tank carry out vacuum cavitations；Start motor, experiment compressor, air inlet component and exhaust component to be mounted on test-bed；
The each bearing portion installation acceleration vibrating sensor of compressor is tested, while a pair of orthogonal current vortex is installed and is shaken
Dynamic sensor；Compressor exhaust end installation electric vortex vibrating sensor is tested, electric vortex vibrating sensor vertical is calmed the anger in experiment
The end face of arbor；Acceleration vibrating sensor, electric vortex vibrating sensor, temperature transmitter and pressure transmitter signal pass through electricity
Cable is transferred to vibration monitor system.
A kind of 2. gas turbine blower vibration test platform as described in claim 1, which is characterized in that the experiment pressure
There is mechanism of qi import guide vane is adjusted.
A kind of 3. gas turbine blower vibration test platform as described in claim 1, which is characterized in that the intake section
Part further includes shutter, and the angle of regulation range of the shutter is 0~90 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720688435.9U CN207516036U (en) | 2017-06-14 | 2017-06-14 | A kind of gas turbine blower vibration test platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688435.9U CN207516036U (en) | 2017-06-14 | 2017-06-14 | A kind of gas turbine blower vibration test platform |
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| CN207516036U true CN207516036U (en) | 2018-06-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912624A (en) * | 2020-06-24 | 2020-11-10 | 湖南航翔燃气轮机有限公司 | Movable mini-type gas turbine generator set test bed |
| CN114645858A (en) * | 2022-03-15 | 2022-06-21 | 天津大学 | Centrifugal compressor performance test bench device under variable working condition of engine |
-
2017
- 2017-06-14 CN CN201720688435.9U patent/CN207516036U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912624A (en) * | 2020-06-24 | 2020-11-10 | 湖南航翔燃气轮机有限公司 | Movable mini-type gas turbine generator set test bed |
| CN114645858A (en) * | 2022-03-15 | 2022-06-21 | 天津大学 | Centrifugal compressor performance test bench device under variable working condition of engine |
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