CN2867329Y - Smoke gas turbine thermal state machinery operation test platform - Google Patents
Smoke gas turbine thermal state machinery operation test platform Download PDFInfo
- Publication number
- CN2867329Y CN2867329Y CNU2005201298368U CN200520129836U CN2867329Y CN 2867329 Y CN2867329 Y CN 2867329Y CN U2005201298368 U CNU2005201298368 U CN U2005201298368U CN 200520129836 U CN200520129836 U CN 200520129836U CN 2867329 Y CN2867329 Y CN 2867329Y
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- China
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- gas turbine
- flue gas
- turbine expander
- running test
- branch
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- Expired - Lifetime
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Abstract
A flue gas turbine thermal state mechanism operation test bed is disclosed. In the test bed, power output end of the motor is connected with hydraulic coupling, the power output end of the hydraulic coupling is connected to gear case, the power output end of the gear case is connected to the flue gas turbine. The test bed also includes close circulation pipeline, the data acquisition/analysis system and hydraulic oil circulating/cooling system. The test bed can meet requirement of flue gas turbine thermal state mechanism operation test with max. output power of 30,000-37,000 kW. It has functions of monitoring mechanism operation state, acquiring and analyzing test data, and simulating practical operation state on site, and is applicable for flue gas turbine of different powers, specifications and dimensions. It also suitable for testing operation of large sized rotation mechanism.
Description
Technical field
The utility model relates to a kind of mechanical running test platform, the hot mechanical running test platform of particularly a kind of flue gas turbine expander.Be at flue gas turbine expander in the operating characteristics of large-scale catalytic cracking unit, for flue gas turbine expander dispatch from the factory the examination custom-designed testing table.It not only will simulate the actual operating mode (as temperature, pressure etc.) of industry spot, also will satisfy the test needs of the flue gas turbine expander of different capacity, different model and size; Not only satisfy the test needs of flue gas turbine expander, can also satisfy the operational test needs of large rotating machinery.
Background technology
In September, 2000, YL33000A type superpower flue gas turbine expander research and development program element is set up the project in group company of PetroChina Company Limited. and country's 15 major technologies and equipment projects respectively.This flue gas turbine expander design power reaches 33000Kw, and the manufacturing of 30000Kw rank flue gas turbine expander and test belong to blank at home, only have minority developed country to manufacture and design in the world.
My company develops on the basis of superpower flue gas turbine expander at independent development, technology and operating experience based on long-term manufacturing flue gas turbine expander, propose design and can satisfy the testing table that 30000Kw rank flue gas turbine expander carries out hot mechanical running test, maximum can satisfy the 37000KW flue gas turbine expander and carry out hot mechanical running test.
The utility model content
The purpose of this utility model provides the hot mechanical running test platform of a kind of flue gas turbine expander, and satisfying peak power output is the hot mechanical running test of flue gas turbine expander of 30000-37000kW.Reach and possess machine operation status monitoring, test figure collection and data analysis function.
The technical solution adopted in the utility model is:
The hot mechanical running test platform of flue gas turbine expander adopts by the motor power output terminal and connects fluid-flywheel clutch, and fluid-flywheel clutch clutch end connection gear case, gear case clutch end connect flue gas turbine expander (testing machine) series connection and constitute.The hot mechanical running test platform of flue gas turbine expander also comprises sealing and circulating pipeline, the data acquisition of flue gas turbine expander testing table, analytic system, and hydraulic oil circulation cooling system.
One, fluid-flywheel clutch is adjusted high and low rotating speed gear in the gear case by the fluid power friction, realizes unit smooth starting and stepless speed regulation.We have selected variable speed fluid coupling.Its advantage is when pump impeller rotating speed (moment) is constant, the penetrability that turbine moment (rotating speed) changes with load.Under certain pump impeller rotating speed, the moment of pump impeller, turbine can only be within the specific limits with working conditions change.These advantages can satisfy following the requirement:
(1) motor can start in advance, starts flue gas turbine expander by fluid-flywheel clutch again, can ignore the startup problem of different model flue gas turbine expander fully, has solved the problem of different model flue gas turbine expander staring torque and power difference great disparity.
(2) along with the variation of motor output power, the moment of transmission can change, thereby reaches the purpose of speed governing.
(3) rotating speed of turbine can not exceed its intrinsic variation range, if load moment surpasses turbine output maximum moment, the rotating speed of turbine can progressively reduce until being zero.Play the effect of limit square protection.In this process, variable speed fluid coupling can be regulated the length of load machinery accelerator by the filling amount of regulating working chamber.
(4) fluid-flywheel clutch can weaken the torsional oscillation of engine and isolate the vibration of load, the life-span of improving engine and gearing.
(5) can also accomplish that in this way the motor zero load starts, and at utmost reduces fluctuation and infringement to electrical network.
(6) configuration gearbox, the gear pair that has designed 3 kinds of speed ratios cooperates speed governing, can finish the testing requirements of all kinds of flue gas turbine expanders of 0～9000r/min.
This mechanical running test to this big inertia rotating machinery of flue gas turbine expander is particularly important.
Two, adopt the structure of sealing and circulating pipeline to be: adopt sealed tube that the exhanst gas outlet and the inlet of flue gas turbine expander are coupled together, its effect is the cyclic space that forms a sealing, cold air is set in the bypass of pipeline replenishes mouth and exhaust of hot air mouth.Cold air replenishes mouth and there is butterfly valve at exhaust of hot air mouth place.Automatically regulate air themperature in the circulation pipe by pilot system according to testing requirements.
The effect of sealing and circulating pipe is as follows:
(1) adopt the sealing and circulating pipe, by the flue gas turbine expander acting, the air that the self-loopa heating is airtight makes air heat up rapidly and produce and flows, and satisfies the temperature requirement of hot test.
(2) can the exhaust of hot air mouth from the inner part air of extracting out of airtight circulation pipe, cause vacuum in the pipe, air friction loss power and air blast institute wasted power when reducing the flue gas turbine expander operation reduce the power consumption of motor.According to calculating, can reduce power attenuation by this method and be 40% to the maximum.
For some oversized flue gas turbine expanders, the output power of motor can not meet the demands.Such as when testing the flue gas turbine expander of 40000KW level from now on, existing motor can not be satisfied the demand.Just can adopt this method to finish experiment work.
Three, hydraulic oil circulation cooling system comprises total feed line, total oil return pipeline and branch's oil supply line and branch's oil return pipeline.Take-off line is connected to flue gas turbine expander bearing, gear case and motor bearings, adopts the hydraulic oil circulating cooling method to reduce bearing temperature.
Four, flue gas turbine expander testing table data acquisition, analytic system structure comprise:
(1) branch of each temperature signal of test unit hot test detects.At sealing and circulating pipe, flue gas turbine expander, gear case, fluid-flywheel clutch, motor, and hydraulic oil circulation cooling system is provided with temperature sensor.The quantity of temperature sensor satisfies the hot test requirement between 20-70.
(2) branch of each hydraulic pressure signal of test unit mechanical running test detects.The oil pressure sensor and the flow sensor that mainly comprise total feed line of hydraulic oil circulation cooling system, total oil return pipeline and branch's oil supply line and branch's oil return pipeline.
(3) branch of each mechanical signal of test unit mechanical running test detects.Mainly comprise flue gas turbine expander front and back bearings vibration transducer, box bearing vibration transducer and displacement transducer.
(4) electric moter voltage, current sensor.
Flue gas turbine expander test special software.
(1) core in the cigarette machine-heating load mechanical running test platform monitoring system---portable monitoring station PMS comprises: data acquisition unit; Data Management Unit; Display unit; The motion graphics display unit is arranged between the control of unit instrument.It both can unite use with AMS, and the automatic management role of powerful real-time data acquisition, monitoring, alarming, data transmission, online in real time graphic presentation, state analysis, fault diagnosis and database is provided, and can independently finish above-mentioned all tasks again.
(2) system's output function: on-the-spot real time on-line monitoring analysis; Fault sample is analyzed; The performance analysis of starting and stopping machine; The history run state analysis.Provide following analysis: time domain waveform, orbit of shaft center, FFT spectrogram, waterfall figure, frequency characteristic, cepstrum, power spectrum, statistical study, coherence analysis, correlation analysis, trend prediction, printing reports etc.
Five, the connected mode of unit and testing table:
For adapting to the different shaft coupling sizes of different model flue gas turbine expander, between test unit and flue gas turbine expander connector is arranged, connector construction is in guard shield, and the gear case half a coupler connects gear coupling, gear coupling connects adjusts pipe nipple, adjusts pipe nipple and connects the flue gas turbine expander half a coupler.
Gear coupling can be changed to the diaphragm type shaft coupling as required, plays better connection effect; By changing the flue gas turbine expander axle head size that the size of adjusting pipe nipple can adapt to various models.
The beneficial effects of the utility model:
1) the testing table unit ability of dragging satisfies the requirement of 37000KW flue gas turbine expander operational test;
2) adopt the sealing and circulating pipe, by the flue gas turbine expander acting, the heat cycles inner air tube heats up air rapidly and has reached the temperature of testing requirements;
3) online FFT amplitude spectrum, time domain waveform and the orbit of shaft center that refreshes whole 64 paths, the real-time follow-up monitoring is carried out to vibration signal, 3 road axial displacement signals, one road key phase signal in 12 paths, and can carry out following on-line analysis: BODE figure, NY figure, waterfall figure, GUBEL shaft core position figure, time domain waveform, orbit of shaft center, FFT spectrogram, cepstrum, power spectrum, statistical study, coherence analysis etc. simultaneously.Black box fault sample analytic function carries out real-time monitoring record and data analysis to various super scope alert datas.
4) satisfy among the international standard API-617 relevant rotor unbalance response analysis requirement, draw synchronous amplitude, phasing degree relation curve, and filtering and non-filtered curve are provided rotating speed.Satisfy the rotor transverse vibration and analyze requirement, can draw uneven trial curve figure, satisfy the factory inspection requirement of unbalance Response Analysis.
The hot mechanical running test platform of the utility model flue gas turbine expander, structural design has bigger improvement, makes on its experimental performance and the manufacturing cost, meets the needs of industry and has produced handy and practical effect.It is a new and innovative, progressive, practical new design.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Description of drawings
Accompanying drawing 1 is the hot mechanical running test platform of a utility model flue gas turbine expander structural profile synoptic diagram.Position relation between the hot mechanical running test platform parts of expression flue gas turbine expander.
Accompanying drawing 2 is the connector construction diagrammatic cross-section between flue gas turbine expander and the testing table.
Among the figure, 1. motor, 2. fluid coupling, 3. gear case, 4. flue gas turbine expander, 5. exhaust of hot air mouth, 6. sealing and circulating pipe, 7. cold air replenishes mouthful, 8. circulating temperature is popped one's head in, 9. outlet temperature probe, 10. temperature in probe, 11. the case temperature probe, 12. oil-feed house stewards, 13. oil return house stewards, 14. connector, 15. guard shields, 16. gear case half a couplers, 17. gear coupling, 18. adjust pipe nipple, 19. flue gas turbine expander half a couplers.
Embodiment
June in 2003,33000KW superpower on the 1st flue gas turbine expander carried out hot mechanical running test at this testing table.The 33000KW flue gas turbine expander is country's 15 major technologies and equipment research and development program elements, and to the program of test, the collection of data, system calibrating, analysis means etc. have clearly regulation, so whole test operating process strictness.
In this test, we have carried out real-time monitoring according to the API standard to each passage, will carry out multianalysises such as BODE figure, time domain waveform, orbit of shaft center, FFT spectrogram to vibration signal.Through this test, obtain the test figure of group more than 3000 altogether, and drawn performance graph, carried out The Dynamic Response, real-time characteristic is good, the sweep frequency height, for examination provides process analysis procedure analysis fully reliably and rotor characteristics analysis, be subjected to the consistent of user and expert on the scene and speak highly of.
Now this testing table has been finished more than 30 model flue gas turbine expander experiment works such as YLII8000J, YL10000B, YL10000C, YL5000C, YL5000A, YLII6000A, by using various analysis means, some problems that rotor itself exists have been solved, the test figure that provide sufficient, meets international standard, the delivery test and the insolation level of flue gas turbine expander have been brought up to new height.
Embodiment
Consult accompanying drawing 1.The hot mechanical running test platform of 33000KW flue gas turbine expander, adopting by motor (1) power is 3300KW.Motor (1) clutch end connects fluid-flywheel clutch (2), fluid-flywheel clutch (2) clutch end connection gear case (3), and gear case (3) clutch end connects flue gas turbine expander (4); The hot mechanical running test platform of flue gas turbine expander also comprises sealing and circulating pipeline (6), the data acquisition of flue gas turbine expander testing table, analytic system, and hydraulic oil circulation cooling system.
Fluid-flywheel clutch (2) is selected the GWT58 variable speed fluid coupling for use.Fluid power stepless speed regulation, speed adjustable range 0-3000r/min can realize that by cooperating with the gear case speed increasing gear train speed adjustable range is 0-9000r/min.
The structure of described sealing and circulating pipeline is: adopt close circulation stopped pipe (6) that the exhanst gas outlet and the inlet of flue gas turbine expander are coupled together, form the cyclic space of a sealing.800 millimeters of close circulation stopped pipe (6) diameters are welded into by steel pipe.Cold air is set in the bypass of pipeline replenishes mouthful (7) and an exhaust of hot air mouth (5); Cold air replenishes mouthful (7) and has located a butterfly valve, and exhaust of hot air mouth (5) has been located a butterfly valve.
Described hydraulic oil circulation cooling system comprises oil-feed house steward (12), oil return house steward (13) and branch's oil supply line and branch's oil return pipeline; Take-off line is connected to flue gas turbine expander (4) bearing, gear case (3) and motor (1) bearing.
The data acquisition of described flue gas turbine expander testing table, analytic system structure comprise:
(1) branch of each temperature signal of test unit hot test detects: at sealing and circulating pipe (6), flue gas turbine expander (4), gear case (3), fluid-flywheel clutch (2), motor (1), and hydraulic oil circulation cooling system is provided with temperature sensor, and the quantity of temperature sensor is between 20-70.As circulating temperature probe (8), outlet temperature probe (9), temperature in probe (10) and case temperature probe (11), be exactly sealing and circulating pipe (6) is gone up the temperature sensor that is provided with;
(2) branch of each hydraulic pressure signal of test unit mechanical running test detects: comprise oil-feed house steward (12), oil return house steward (13) and branch's oil supply line of hydraulic oil circulation cooling system and the oil pressure sensor and the flow sensor of branch's oil return pipeline;
(3) branch of each mechanical signal of test unit mechanical running test detects: comprise flue gas turbine expander front and back bearings vibration transducer, box bearing vibration transducer and displacement transducer;
(4) voltage, the current sensor of motor (1);
(5) flue gas turbine expander test special software: core---portable monitoring station PMS comprises: data acquisition unit in the cigarette machine-heating load mechanical running test platform monitoring system; Data Management Unit; Display unit; The motion graphics display unit is arranged between the control of unit instrument; System's output function: comprise online monitoring analysis; Fault sample is analyzed; The performance analysis of starting and stopping machine; The history run state analysis; Provide following analysis: time domain waveform, orbit of shaft center, FFT spectrogram, waterfall figure, frequency characteristic, cepstrum, power spectrum, statistical study, coherence analysis, correlation analysis, trend prediction, printing reports etc.
Consult accompanying drawing 2.The connected mode of unit and testing table: connector (14) is arranged between unit and the testing table, connector (14) structure is in guard shield (15), gear case half a coupler (16) connects gear coupling (17), gear coupling (17) connects adjusts pipe nipple (18), adjusts pipe nipple (18) and connects flue gas turbine expander half a coupler (19).
The hot mechanical running test process of narration flue gas turbine expander helps to understand the utility model.
1, starting lubricating oil station and peripherals prepares.
2, after oil station, electrical network entry condition possess, start the 3300KW motor, and make motor reach duty.This moment, so the pump impeller of fluid-flywheel clutch (2) started working under driven by motor, do not work yet with the turbine that flue gas turbine expander (4) links to each other with gear case (3) owing to do not have oil-filledly in the fluid-flywheel clutch (2).
3, carry out oil-filled to fluid-flywheel clutch (2), pump impeller is by charging into the fluid carry-over moment, drive turbine rotation, flue gas turbine expander (4) rotating speed raises gradually, by adjusting oil-filled amount and speed, can carry out stepless speed regulation to the rotating speed of flue gas turbine expander (4), general raising speed is controlled at 100r/min, main consideration is carried out the heating of self-loopa slowly to the air in flue gas turbine expander (4) the sealing and circulating pipe (6), and flue gas turbine expander (4) expanded by heating is even etc.
4, raising speed stays for some time after the rated speed (being generally 6000r/min) of flue gas turbine expander (4) and carries out various input and analysis.Mainly be analysis of vibration signal, if not unusual, each detection signal all normally then carries out overspeed test, is generally 1.05～1.1 times of rated speed, if each detection signal is still normal, signal analysis is not unusual, and then test is finished.
5, progressively reduce rotating speed, and shut down.
6, after flue gas turbine expander (4) reached rated speed, the air themperature of sealing circulation pipe (6) can reach more than 400 ℃, was the protection flue gas turbine expander, and the sealing circulation pipe (6) in test and the superheat section of flue gas turbine expander (4) need insulation.Test temperature is near the temperature (480-600 ℃) under flue gas turbine expander (4) condition of work, and main investigation flue gas turbine expander this moment (4) prevents that in the hot distortion and the gap situation of change of each parts down rotor and stationary parts from bumping the mill phenomenon.
Claims (6)
1, the hot mechanical running test platform of a kind of flue gas turbine expander, it is characterized in that: adopt by motor (1) clutch end to connect fluid-flywheel clutch (2), fluid-flywheel clutch (2) clutch end connection gear case (3), gear case (3) clutch end connects flue gas turbine expander (4); The hot mechanical running test platform of flue gas turbine expander also comprises sealing and circulating pipe (6), the data acquisition of flue gas turbine expander testing table, analytic system, and hydraulic oil circulation cooling system.
2, the hot mechanical running test platform of flue gas turbine expander as claimed in claim 1 is characterized in that: fluid-flywheel clutch (2) adopts variable speed fluid coupling (2).
3, the hot mechanical running test platform of flue gas turbine expander as claimed in claim 1, it is characterized in that: the structure of described sealing and circulating pipe (6) is: adopt sealed tube that the exhanst gas outlet and the inlet of flue gas turbine expander (4) are coupled together, form the cyclic space of a sealing, cold air is set in the bypass of pipeline replenishes mouthful (7) and an exhaust of hot air mouth (5); Cold air replenishes mouthful (7) and exhaust of hot air mouth (5) has been located butterfly valve.
4, the hot mechanical running test platform of flue gas turbine expander as claimed in claim 1 is characterized in that: described hydraulic oil circulation cooling system comprises oil-feed house steward (12), oil return house steward (13) and branch's oil supply line and branch's oil return pipeline; Take-off line is connected to flue gas turbine expander (4) bearing, gear case (3) and motor (1) bearing.
5, the hot mechanical running test platform of flue gas turbine expander as claimed in claim 1, it is characterized in that: the data acquisition of described flue gas turbine expander testing table, analytic system structure comprise:
The branch of each temperature signal of test unit hot test detects: at sealing and circulating pipe (6), flue gas turbine expander (4), gear case (3), fluid-flywheel clutch (2), motor (1), and hydraulic oil circulation cooling system is provided with temperature sensor, and the quantity of temperature sensor is between 20-70;
The branch of each hydraulic pressure signal of test unit mechanical running test detects: comprise oil-feed house steward (12), oil return house steward (13) and branch's oil supply line of hydraulic oil circulation cooling system and the oil pressure sensor and the flow sensor of branch's oil return pipeline;
The branch of each mechanical signal of test unit mechanical running test detects: comprise flue gas turbine expander (4) front and back bearings vibration transducer, gear case (3) bear vibration sensor and displacement transducer;
Motor (1) voltage, current sensor.
6, as claim 1 or the hot mechanical running test platform of 2 or 3 or 4 described flue gas turbine expanders, it is characterized in that: connector (14) is arranged between flue gas turbine expander (4) and the testing table, connector (14) structure is in guard shield (15), gear case half a coupler (16) connects gear coupling (17), gear coupling (17) connects adjusts pipe nipple (18), adjusts pipe nipple (18) and connects flue gas turbine expander half a coupler (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201298368U CN2867329Y (en) | 2005-10-18 | 2005-10-18 | Smoke gas turbine thermal state machinery operation test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201298368U CN2867329Y (en) | 2005-10-18 | 2005-10-18 | Smoke gas turbine thermal state machinery operation test platform |
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| Publication Number | Publication Date |
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| CN2867329Y true CN2867329Y (en) | 2007-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201298368U Expired - Lifetime CN2867329Y (en) | 2005-10-18 | 2005-10-18 | Smoke gas turbine thermal state machinery operation test platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418228A (en) * | 2007-10-26 | 2009-04-29 | 中国石油化工集团公司 | Recovery system of full pressure energy for catalytic cracking flue gas turbine |
| CN102363126A (en) * | 2011-11-03 | 2012-02-29 | 西安船舶工程研究院有限公司 | Crusher |
| CN109883703A (en) * | 2019-03-08 | 2019-06-14 | 华北电力大学 | It is a kind of to be concerned with the fan bearing health monitoring diagnostic method of cepstral analysis based on vibration signal |
-
2005
- 2005-10-18 CN CNU2005201298368U patent/CN2867329Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418228A (en) * | 2007-10-26 | 2009-04-29 | 中国石油化工集团公司 | Recovery system of full pressure energy for catalytic cracking flue gas turbine |
| CN101418228B (en) * | 2007-10-26 | 2013-11-06 | 中国石油化工集团公司 | Recovery system of full pressure energy for catalytic cracking flue gas turbine |
| CN102363126A (en) * | 2011-11-03 | 2012-02-29 | 西安船舶工程研究院有限公司 | Crusher |
| CN102363126B (en) * | 2011-11-03 | 2013-10-30 | 西安船舶工程研究院有限公司 | Crusher |
| CN109883703A (en) * | 2019-03-08 | 2019-06-14 | 华北电力大学 | It is a kind of to be concerned with the fan bearing health monitoring diagnostic method of cepstral analysis based on vibration signal |
| CN109883703B (en) * | 2019-03-08 | 2021-04-20 | 华北电力大学 | Fan bearing health monitoring and diagnosing method based on vibration signal coherent cepstrum analysis |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070207 |
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| EXPY | Termination of patent right or utility model |