CN205785821U - A kind of experimental provision measuring turbine rotor critical speed influence factor - Google Patents
A kind of experimental provision measuring turbine rotor critical speed influence factor Download PDFInfo
- Publication number
- CN205785821U CN205785821U CN201620488708.0U CN201620488708U CN205785821U CN 205785821 U CN205785821 U CN 205785821U CN 201620488708 U CN201620488708 U CN 201620488708U CN 205785821 U CN205785821 U CN 205785821U
- Authority
- CN
- China
- Prior art keywords
- turbine rotor
- speed
- sliding bearing
- rotor
- wheel disc
- 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
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Control Of Turbines (AREA)
Abstract
A kind of experimental technique measuring turbine rotor critical speed influence factor, relates to a kind of experimental provision measuring turbine rotor critical speed Correlative Influence Factors and measuring method.Chassis (1) is upper installs the first sliding bearing (2), second sliding bearing (3), dragging motor (4), displacement sensor bracket (7), speed probe support (10), turbine rotor analog main shaft (5) and turbine rotor simulation wheel disc (6) are arranged on above-mentioned two bearing, on displacement transducer (8) and speed probe (11) fixed support, measured signal inputs in computer and test software (14) after vibrating data analysis instrument (13) processes, rotating speed velometer (12) controls the output speed of dragging motor (4) by connecting wire (15).This invention can draw, by changing the rigidity of structure and the change of mass measurement critical rotor speed of steam turbine model rotor, principal element and the impact effect affecting turbine rotor critical speed.
Description
Technical field
This utility model relates to turbine rotor experimental measurement method, particularly a kind of measurement turbine rotor critical speed
The experimental provision of influence factor.
Background technology
Current thermal power plant is towards Large Copacity, high parameter trend development, the stable operation of unit and centralized Control level
Require the highest.Turbo-generator Set is thermal power plant nucleus equipment, and its operational reliability will directly affect the safety of full factory
Property and economy.Turbine rotor system is made up of equipment such as main shaft, impeller, blade and shaft couplings, rotor-support-foundation system and steam turbine
Stationary part gap is the least, will cause unit generation rub impact phenomena due to vibration cause, and cause device damage, shake in running
Moved senior general and made compressor emergency shutdown.Owing to the rotor-support-foundation system of Turbo-generator Set is flexible rotor, steam turbine is starting or was shutting down
Cheng Zhong, the critical speed of rotor to be crossed.Turbo-generator Set amplitude of rotor when critical speed is increased dramatically, and causes sound
Between touch and rub, after crossing critical speed, amplitude reduces.During so opening at unit, shutting down, the critical speed of GPRS rotor, Ying Ji
Short time pass through critical speed, it is to avoid rotor-support-foundation system and stationary part cause excessive friction damage.If well grasping
The influence factor of steamer rotor-support-foundation system critical speed, can help to analyze the critical speed size judging rotor-support-foundation system, have pin
The abrasion of touching that property is avoided critical speed cause unit is hindered.
Utility model content
The purpose of this utility model is, by experimental facilities, turbine rotor system is carried out critical speed measurement, and leads to
Cross the rigidity of structure and the mass change changing turbine rotor system, observe the situation of change of its critical rotor speed.By reality
Test and draw the principal element affecting turbine rotor system critical speed, and it is analyzed research, grasp and affect steam turbine
The origin cause of formation of rotor-support-foundation system critical speed, actual opens at unit, in stopping process, vibrated when avoiding critical speed targetedly
The big damage that unit is caused.Meanwhile, the factor of turbine rotor system critical speed is affected by research, it is possible to achieve to turning
The adjustment of subsystem critical speed, on purpose makes working speed avoid critical speed, prevents when extraneous excited frequency and system
Natural frequency identical time the resonance that occurred, reach the purpose of preventing and treating resonance harm.
The purpose of this utility model is achieved through the following technical solutions:
A kind of experimental provision measuring turbine rotor critical speed influence factor, described device includes chassis, the first cunning
Dynamic bearing, the second sliding bearing, dragging motor, turbine rotor analog main shaft, turbine rotor simulation wheel disc, displacement transducer
Support, displacement transducer, oil can, speed probe support, speed probe, rotating speed velometer, vibrating data analysis instrument, computer
And test software, connection wire, it is characterised in that chassis (1) is above installed the first sliding bearing (2), the second sliding bearing (3), is dragged
Galvanic electricity machine (4), displacement sensor bracket (7), speed probe support (10), the first sliding bearing (2) and the second sliding bearing
(3) vertical upper device oil can (9), steam turbine model rotor is simulated by turbine rotor analog main shaft (5) and turbine rotor
Wheel disc (6) forms, and is arranged on the first sliding bearing (2) and the second sliding bearing (3), and displacement transducer (8) and rotating speed pass
Sensor (11) is fixed on displacement sensor bracket (7) and speed probe support (10), displacement transducer (8) and revolution speed sensing
Device (11) measured signal is by connecting in wire (15) inputted vibration data analyzer (13), and vibrating data analysis instrument (13) arranges
After data signal by connecting in wire (15) input computer and test software (14), rotating speed velometer (12) is led by connection
Line (15) controls the output speed of dragging motor (4).
Described a kind of experimental provision measuring turbine rotor critical speed influence factor, described turbine rotor is simulated
Wheel disc (6) is made up of the wheel disc of three different qualities, and wheel disc position is upper adjustable at turbine rotor analog main shaft (5), steam turbine
Rotor simulation wheel disc (6) can be respectively mounted 1,2 or 3.
Described a kind of experimental provision measuring turbine rotor critical speed influence factor, described first sliding bearing
(2) and the second sliding bearing (3) screw fastening means is fixed on chassis (1), position of bearings absolute altitude can be adjusted and
Install pad additional.
Advantage of the present utility model with effect is:
This patent in the running of thermal power plant, by research affect turbine rotor system critical speed because of
Element, it is possible to achieve the adjustment to rotor-support-foundation system critical speed, on purpose makes working speed avoid critical speed, reduces steamer and sends out
The abnormal vibrations that group of motors occurs when experiencing critical rotor speed.Grasp critical speed and the major influence factors thereof of rotor
Analysis, can actively prevent the harm that resonance is brought, it is ensured that thermal power generation unit safely and steadily runs, and has far-reaching
Theory significance and engineering practical value.
Accompanying drawing explanation
Fig. 1 is this utility model patent structure schematic diagram.
Detailed description of the invention
This utility model patent is described in detail by illustrated embodiment below in conjunction with the accompanying drawings.
Figure is numbered: 1. chassis 2. first sliding bearing 3. second sliding bearing 4. dragging motor 5. steamer
Machine rotor analog main shaft 6. turbine rotor simulation wheel disc 7. displacement sensor bracket 8. displacement transducer 9. oil can
10. speed probe support 11. speed probe 12. rotating speed velometer 13. vibrating data analysis instrument 14. computer and
Test software 15. connects wire
Its structure and consisting of: chassis, the first sliding bearing, the second sliding bearing, dragging motor, turbine rotor simulation
Main shaft, turbine rotor simulation wheel disc, displacement sensor bracket, displacement transducer, oil can, speed probe support, rotating speed pass
Sensor, rotating speed velometer, vibrating data analysis instrument, computer and test software, connection wire.In chassis (1), upper installation first is sliding
Dynamic bearing (2), the second sliding bearing (3), dragging motor (4), displacement sensor bracket (7), speed probe support (10), the
One sliding bearing (2) and the second sliding bearing (3) vertical upper device oil can (9), steam turbine model rotor is by turbine rotor
Analog main shaft (5) and turbine rotor simulation wheel disc (6) composition, and it is arranged on the first sliding bearing (2) and the second sliding bearing
(3), on, displacement transducer (8) and speed probe (11) are fixed on displacement sensor bracket (7) and speed probe support
(10), on, displacement transducer (8) and speed probe (11) measured signal are by connecting wire (15) inputted vibration data analysis
In instrument (13), vibrating data analysis instrument (13) reduced data signal is by connecting wire (15) input computer and test software
(14), in, rotating speed velometer (12) controls the output speed of dragging motor (4) by connecting wire (15).
Using method of the present utility model is as follows:
This utility model mainly measures the experimental provision of turbine rotor critical speed influence factor, changes steam turbine simulation
Rotor disk position measurement critical speed changes, and changes the change of steam turbine model rotor bearings stiffness measurement critical speed,
Change the change of steam turbine model rotor wheel disc mass measurement critical speed, utilize Bode diagram method to measure under different experimental conditions
Critical speed.
First determine the original state of steam turbine model rotor, be as the criterion in alignment of shafts position with single small trochal disc, connect
Good each experimental provision, prepares before carrying out experiment, detects each measurement equipment the most handy, start rotating speed velometer (12), constantly rise
Speed, until measuring the experiment of Bode diagram curve stopping accurately in computer and test software (14), and records experimental result.
Change the position of turbine rotor simulation wheel disc (6), make turbine rotor simulation wheel disc (6) turn steam turbine respectively
Sub-analog main shaft (5) distance the first sliding bearing (2) 100mm, 200mm, 300mm, 400mm, 500mm, measure rotor respectively and face
Boundary's rotating speed obtains Bode diagram curve, and has recorded experimental result.
Change the quality of turbine rotor simulation wheel disc (6), by the three of different quality turbine rotors simulation wheel disc (6)
It is arranged on the center on turbine rotor analog main shaft (5), measures critical rotor speed respectively and obtain Bode diagram curve, and remember
Record experimental result.
Change the first sliding bearing (2) and the second sliding bearing (3) support stiffness, adjust the first sliding bearing (2) respectively
With the absolute altitude of the second sliding bearing (3), measure critical rotor speed respectively and obtain Bode diagram curve, and recorded experimental result.
Utilize experimental result, analyze the principal element affecting turbine rotor critical speed, it was therefore concluded that.
Claims (3)
1. measuring the experimental provision of turbine rotor critical speed influence factor, described device includes chassis, the first slip
Bearing, the second sliding bearing, dragging motor, turbine rotor analog main shaft, turbine rotor simulation wheel disc, displacement transducer prop up
Frame, displacement transducer, oil can, speed probe support, speed probe, rotating speed velometer, vibrating data analysis instrument, computer and
Test software, connection wire, it is characterised in that chassis (1) is upper installs the first sliding bearing (2), the second sliding bearing (3), dragging
Motor (4), displacement sensor bracket (7), speed probe support (10), the first sliding bearing (2) and the second sliding bearing (3)
Vertical upper device oil can (9), steam turbine model rotor is simulated wheel disc by turbine rotor analog main shaft (5) and turbine rotor
(6) composition, and be arranged on the first sliding bearing (2) and the second sliding bearing (3), displacement transducer (8) and speed probe
(11) it is fixed on displacement sensor bracket (7) and speed probe support (10), displacement transducer (8) and speed probe
(11) measured signal is by connecting in wire (15) inputted vibration data analyzer (13), after vibrating data analysis instrument (13) arranges
Data signal by connecting in wire (15) input computer and test software (14), rotating speed velometer (12) is by connecting wire
(15) output speed of dragging motor (4) is controlled.
A kind of experimental provision measuring turbine rotor critical speed influence factor the most according to claim 1, its feature
Being, turbine rotor simulation wheel disc (6) is made up of the wheel disc of three different qualities, and wheel disc position is main in turbine rotor simulation
Axle (5) is upper adjustable, and turbine rotor simulation wheel disc (6) can be respectively mounted 1,2 or 3.
A kind of experimental provision measuring turbine rotor critical speed influence factor the most according to claim 1, its feature
Being, the first sliding bearing (2) and the second sliding bearing (3) screw fastening means are fixed on chassis (1), and position of bearings is marked
Height can be adjusted and install pad additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620488708.0U CN205785821U (en) | 2016-05-26 | 2016-05-26 | A kind of experimental provision measuring turbine rotor critical speed influence factor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620488708.0U CN205785821U (en) | 2016-05-26 | 2016-05-26 | A kind of experimental provision measuring turbine rotor critical speed influence factor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205785821U true CN205785821U (en) | 2016-12-07 |
Family
ID=58109788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620488708.0U Active CN205785821U (en) | 2016-05-26 | 2016-05-26 | A kind of experimental provision measuring turbine rotor critical speed influence factor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205785821U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806622A (en) * | 2016-05-26 | 2016-07-27 | 沈阳工程学院 | Experimental method for measuring critical speed influencing factors for steam turbine rotor |
| CN107063692A (en) * | 2017-04-18 | 2017-08-18 | 无锡富起电力设备配件有限公司 | Steam turbine experimental rig |
| CN107702854A (en) * | 2017-07-10 | 2018-02-16 | 北京航天动力研究所 | A kind of high-speed balancing method for meeting rocket engine turbopump assembling and using |
| CN109030004A (en) * | 2018-07-31 | 2018-12-18 | 大连凌海华威科技服务有限责任公司 | Turbine speed regulating system imitative experimental appliance and its method |
-
2016
- 2016-05-26 CN CN201620488708.0U patent/CN205785821U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806622A (en) * | 2016-05-26 | 2016-07-27 | 沈阳工程学院 | Experimental method for measuring critical speed influencing factors for steam turbine rotor |
| CN107063692A (en) * | 2017-04-18 | 2017-08-18 | 无锡富起电力设备配件有限公司 | Steam turbine experimental rig |
| CN107702854A (en) * | 2017-07-10 | 2018-02-16 | 北京航天动力研究所 | A kind of high-speed balancing method for meeting rocket engine turbopump assembling and using |
| CN107702854B (en) * | 2017-07-10 | 2019-02-15 | 北京航天动力研究所 | A kind of high-speed balancing method for meeting rocket engine turbopump assembly and using |
| CN109030004A (en) * | 2018-07-31 | 2018-12-18 | 大连凌海华威科技服务有限责任公司 | Turbine speed regulating system imitative experimental appliance and its method |
| CN109030004B (en) * | 2018-07-31 | 2021-03-16 | 大连凌海华威科技服务有限责任公司 | Simulation experiment device and method for steam turbine rotating speed adjusting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205785821U (en) | A kind of experimental provision measuring turbine rotor critical speed influence factor | |
| CN105806622A (en) | Experimental method for measuring critical speed influencing factors for steam turbine rotor | |
| US8049637B2 (en) | Systems and methods for sensor-level machine monitoring | |
| Reddy et al. | Detection and monitoring of coupling misalignment in rotors using torque measurements | |
| CN109374273A (en) | Torsional Vibration of Turbine Generator Rotor and fault simulation multi-function test stand and test method | |
| CN107024332A (en) | A kind of experimental provision for simulating the pseudo- vibration fault of rotating machinery | |
| CN104764607B (en) | Turbine rotor fault simulation experiment system | |
| CN205941030U (en) | Vibration state simulation experiment device | |
| CN104215395A (en) | Method and device for detecting imbalance fault of rotor | |
| KR100954063B1 (en) | Dynamic Characteristic Analysis Device Of Superspeed Air Bearing Spindle | |
| CN106353678A (en) | Motor quality control data monitoring system | |
| CN208999082U (en) | Torsional Vibration of Turbine Generator Rotor and fault simulation multi-function test stand | |
| CN105526959A (en) | Encoder reliability test device and method | |
| Mo et al. | An FFT-based high-speed spindle monitoring system for analyzing vibrations | |
| US10533530B2 (en) | Rotating machine and installation for converting energy comprising such a machine | |
| CN104019889A (en) | Power system rotating mechanical shaft vibration measurement method | |
| CN205669464U (en) | A kind of impeller of wind turbine set imbalance test system | |
| CN210625841U (en) | Online measurement high and medium pressure rotor gap bridge steam seal vibration device | |
| Rusinski et al. | Monitoring and testing of high power industrial fans vibration | |
| CN208928293U (en) | Simulate the pilot system of ball milling machine vibration work | |
| Erol et al. | Tribological approach on vibration and electrical current response of experimental misalignment and unbalance failure modes | |
| Pardeshi et al. | Condition monitoring of induction motor-vibration analysis technique | |
| CN106338363A (en) | Dynamic balancing correction process | |
| Ab Ghani et al. | Detection of Shaft Misalignment Using Machinery Fault Simulator (MFS) | |
| Hassan et al. | Diagnosing the Effect of Misalignment on a Rotating System using Simulation and Experimental Study |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211223 Address after: 110136 no.28-6, Puchang Road, Shenbei New District, Shenyang City, Liaoning Province (1-1-1) Patentee after: Shenyang Yicheng Energy Technology Co.,Ltd. Address before: 110136 Pu Chang Road, Shenbei New Area, Shenyang, Liaoning Province, No. 18 Patentee before: SHENYANG INSTITUTE OF ENGINEERING |
|
| TR01 | Transfer of patent right |