CN108731729A - A kind of generator sealing bearing bush simulated experiment rack - Google Patents
A kind of generator sealing bearing bush simulated experiment rack Download PDFInfo
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- CN108731729A CN108731729A CN201711459523.2A CN201711459523A CN108731729A CN 108731729 A CN108731729 A CN 108731729A CN 201711459523 A CN201711459523 A CN 201711459523A CN 108731729 A CN108731729 A CN 108731729A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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Abstract
The invention belongs to generator of nuclear power station technical fields, more particularly to it is a kind of can be to generator sealing bearing bush is tested and is detected mechanical device, so that the sealing bearing bush tested is reached the normal operating condition of simulation Turbo-generator Set, and then studies the generator sealing bearing bush simulated experiment rack of the influence of gap, sealing oil pressure, flow and the temperature of assessment sealing bearing bush and axis to sealing bearing bush operating status；Including alternating current generator, main shaft, wheel disc, sealing bearing bush seat, temperature sensor, speed probe, vibrating sensor, flow sensor, leakproof fuel cell, electric heater, gs-oil separator, frequency conversion oil pump, valve, pressure sensor, water cooler, mechanical filter, magnetic filter, buffer oil tank, air compressor, air accumulator, air reducing valve, air cleaner, air dryer, bearing, coupling sleeve, adjust backing plate, key, partition board, oilhole, stomata, vapour side oil return hole a, vapour side oil return hole b, hanging pin and empty side oil return hole.
Description
Technical field
The invention belongs to generator of nuclear power station technical fields, and in particular to a kind of generator sealing bearing bush simulated experiment rack.
Background technology
The hydrogen inside hydrogen cooled generator is along the gap leakage between generator both ends casing and rotor in order to prevent,
Generator both ends have been respectively mounted sealing bearing bush device, and the hydrogen come in sealed electric generator by the high pressure sealing oil of flowing leaks.
Joint ring type sealing bearing bush, such sealing bearing bush repair is complicated, and mounting process requires height, and the sealing bearing bush of this kind of pattern exists
The problem of being easy to deform in unit red switch or operational process, field gulf nuclear power station once repeatedly appeared in unit running process
Because sealing bearing bush deforms the defect for causing sealing bearing bush temperature high, the safe and stable operation of unit is seriously threatened.
The reason of sealing bearing bush deforms is more complicated, may be for machining stress does not discharge and gradually releases in the process of running
It puts and causes to deform, it is also possible to which blank natrual ageing is not enough during sealing bearing bush processing and manufacturing or heat treatment process has shortcoming
And cause to deform, no matter which kind of reason, be required for just deforming after sealing bearing bush runs a period of time, therefore overhaul
Cheng Zhong can not determine the state of sealing bearing bush in the process of running.
Moreover, in the sealing bearing bush installation standard that the Russian side provides, formulated under Russian local environmental weather conditions
, since weather, the temperature difference of China and Russia are larger, when the standard provided according to the Russian side installs sealing bearing bush,
Sealing oil system often will appear some conflicting problems, such as increases sealing bearing bush internal diameter and corresponding axle journal difference, can drop
Low watt of temperature, but may result in the decline of Seal Oil fuel feeding main-piping pressure, even lower than run-limiting, on the contrary, may then cause watt
Temperature increases.
Therefore, the installation for such sealing bearing bush at present mainly carries out sealing bearing bush by experienced maintenance personal
Maintenance and installation, even if in this way, still will appear due to mounting process or sealing bearing bush deformation the problem of, lead to sealing bearing bush watt temperature
The phenomenon that the defects of height, leakage hydrogen.
Invention content
The object of the present invention is in view of the shortcomings of the prior art, provide one kind generator sealing bearing bush can be carried out experiment and
The mechanical device of detection makes the sealing bearing bush tested reach the normal operating condition of simulation Turbo-generator Set, and then studies and comment
Estimate the generator sealing bearing bush of the influence of gap, sealing oil pressure, flow and the temperature of sealing bearing bush and axis to sealing bearing bush operating status
Simulated experiment rack.
The technical scheme is that：
A kind of generator sealing bearing bush simulated experiment rack, including alternating current generator, main shaft, wheel disc, sealing bearing bush seat, temperature sensing
Device, speed probe, vibrating sensor, flow sensor, leakproof fuel cell, electric heater, gs-oil separator, frequency conversion oil pump, valve
Door, pressure sensor, water cooler, mechanical filter, magnetic filter, buffer oil tank, air compressor, air accumulator, air decompression
Valve, air cleaner, air dryer, bearing, coupling sleeve, adjustment backing plate, key, partition board, oilhole, stomata, vapour side oil return hole a,
Vapour side oil return hole b, hanging pin and empty side oil return hole, wherein alternating current generator is attached by half around property coupling band, key and main shaft, main
Axis is attached by bolt and wheel disc, and the material and size of wheel disc need to be with the generator amature material installed by experiment sealing bearing bush
Matter, size are consistent, and jerk value controls within .mm, and wheel disc is built-in to be supported there are two high-precision bearing, and sealing bearing bush passes through extension
Pin is hung on adjustment backing plate, and is sleeved on wheel disc, is separated with partition board among two pieces of sealing bearing bushes, and two pieces of adjustment backing plates must assure that
It is parallel, within depth of parallelism .mm；It is provided with oilhole, stomata above sealing bearing bush seat, ten measured holes is circumferentially provided with and is passed for installing temperature
Sensor, speed probe, vibrating sensor, lower section are provided with vapour side oil return hole a, vapour side oil return hole b, and sealing bearing bush seat is solid by bolt
It is scheduled on alternating current generator, alternating current generator is attached by bolt and leakproof fuel cell；Leakproof fuel cell is pyramid fuel tank, volume
For m, tank bottoms are square, and week is bolted in ground base, and fuel tank top is connect with alternating current generator, electrical heating
Device is placed in inside leakproof fuel cell, and electric heater is high intensity stick electrical heating elements, preferably eight to 12 groups of quantity；Oil-gas Separation
Device is by flanged joint between vapour side oil return hole a, vapour side oil return hole b and leakproof fuel cell；Frequency conversion oil pump inlet by flange with
The oil circuit outlet connection of leakproof fuel cell bottom, frequency conversion fuel pump outlet are connect by flange with valve, and the valve other end passes through flange
It is attached with the oil pipe line entrance of water cooler, pressure sensor, temperature sensor are threadedly attached in valve and water cooler
On intermediate pipeline；Water cooler oil pipe way outlet is connect by flange with mechanical filter, and valve is separately mounted to by flange
The inlet and outlet of water cooler water lines, the discharge for controlling cooling water, and then control the temperature of Seal Oil；Mechanical filter passes in and out
Mouth is connect by flange with valve, passes through flange and water cooler after two mechanical filters and valve in parallel and magnetic filter connects
It connects；After magnetic filter entrance is connect by pipeline with valve in access leakproof fuel cell, temperature sensor, pressure sensor pass through spiral shell
On the line connection installation subsequent pipeline of magnetic filter；Institute's buffer oil tank is cylindrical tube, and volume m, installation site is higher than examination
Host is tested, for preventing power-off or other situations suddenly, sealing bearing bush or other auxiliary equipments, buffering oil are damaged in docking process
Bottom portion is provided with the inlet and outlet of oil circuit, and top is provided with stomata, and the import of buffer oil tank oil circuit passes through flange and magnetic filter
Outlet connection, outlet are connect by flange with the oilhole on sealing bearing bush seat, and the stomata at top is connect by flange with air accumulator；Temperature
Degree sensor, flow sensor, pressure sensor are installed on the pipeline among buffer oil tank oil pipe way outlet and sealing bearing bush seat；
The air compressor outlet is connect with air accumulator, air reducing valve, air cleaner, air dryer successively, is air-dried
Device outlet is connect by underwater flange with the stomata on sealing bearing bush seat；Air accumulator is cylindrical tube, and volume .m, both sides are opened respectively
There are the entrance and exit of compressed air, air accumulator to ensure to enter the compression in the stomata on sealing bearing bush seat for stablizing air pressure
Air pressure is constant.
The beneficial effects of the invention are as follows：
The invention can not only simulate the normal operating condition of Turbo-generator Set 3000r/min by testing host, lead to
Cross the high-precision sensor of installation, the parameters of accurate recording sealing bearing bush operation, it can be estimated that different sealing bearing bushes and axis
Influence of the parameters such as gap, sealing oil pressure, flow and temperature to sealing bearing bush operating status, and at the same time sealing bearing bush can be examined
Whether can deform in the process of running, can effectively reduce sealing bearing bush and formally return the probability to break down after dress.
Description of the drawings
Fig. 1 is sealing bearing bush simulating bench structure chart.
Fig. 2 is structure chart in component sealing bearing bush seat in experiment host
In figure：1. alternating current generator；2 main shafts；3. wheel disc；4. sealing bearing bush seat；5. temperature sensor；6. speed probe；7.
Vibrating sensor；8. flow sensor；9. leakproof fuel cell；10. electric heater；11. gs-oil separator；12. frequency conversion oil pump；13.
Valve；14. pressure sensor；15. water cooler；16. mechanical filter；17. magnetic filter；18. buffer oil tank；19. air pressure
Contracting machine；20. air accumulator；21. air reducing valve；22. air cleaner；23. air dryer；24. bearing；25. coupling sleeve；
26. sealing bearing bush；27 adjustment backing plates；28. key；29. partition board；30. oilhole；31. stomata；32. vapour side oil return hole a；33. the oil return of vapour side
Hole b；34. hanging pin；35. empty side oil return hole.
Specific implementation mode
The present invention is further introduced with embodiment below in conjunction with the accompanying drawings：
A kind of generator sealing bearing bush simulated experiment rack, including alternating current generator 1, main shaft 2, wheel disc 3, sealing bearing bush seat 4, temperature
Sensor 5, speed probe 6, vibrating sensor 7, flow sensor 8, leakproof fuel cell 9, electric heater 10, gs-oil separator
11, frequency conversion oil pump 12, valve 13, pressure sensor 14, water cooler 15, mechanical filter 16, magnetic filter 17, buffer oil tank
18, air compressor 19, air accumulator 20, air reducing valve 21, air cleaner 22, air dryer 23, bearing 24, coupling sleeve
25, adjust backing plate 27, key 28, partition board 29, oilhole 30, stomata 31, vapour side oil return hole a32, vapour side oil return hole b33, hanging pin 34 and
Empty side oil return hole 35, wherein alternating current generator 1 are attached by half around property coupling band 27, key 30 and main shaft 2, and main shaft 2 passes through spiral shell
Bolt is attached with wheel disc 3, the material and size of wheel disc 3 need to installed by experiment sealing bearing bush generator amature material, ruler
Very little consistent, jerk value controls within 0.015mm, and wheel disc is built-in to be supported there are two high-precision bearing 24, and sealing bearing bush 26 is logical
It crosses hanging pin 34 to hang on adjustment backing plate 27, and is sleeved on wheel disc 3, separated with partition board 29 among two pieces of sealing bearing bushes, two pieces of adjustment
Backing plate 27 must assure that it is parallel, within depth of parallelism 0.02mm；4 top of sealing bearing bush seat is provided with oilhole 30, stomata 31, is circumferentially provided with ten
For a measured hole for mounting temperature sensor 5, speed probe 6, vibrating sensor 7, lower section is provided with vapour side oil return hole a32, vapour
Side oil return hole b33, sealing bearing bush seat 4 are bolted on alternating current generator 1, alternating current generator 1 by bolt and leakproof fuel cell 9 into
Row connection；Leakproof fuel cell 9 is pyramid fuel tank, volume 10m3, tank bottoms are square, and week is bolted on ground
On the basis of face, fuel tank top is connect with alternating current generator 1, and electric heater 10 is placed in inside leakproof fuel cell 9, and electric heater 10 is high-strength
Spend stick electrical heating elements, preferably eight to 12 groups of quantity；Gs-oil separator 11 by flanged joint vapour side oil return hole a32,
Between vapour side oil return hole b33 and leakproof fuel cell 9；12 entrance of frequency conversion oil pump is connected by flange and 9 bottom oil circuit outlet of leakproof fuel cell
It connects, the outlet of frequency conversion oil pump 12 is connect by flange with valve 13, the oil pipe that 13 other end of valve passes through flange and water cooler 15
Road entrance is attached, and pressure sensor 14, temperature sensor 5 are threadedly attached in valve 13 and the pipe among water cooler 15
On line；15 oil pipe way outlet of water cooler is connect by flange with mechanical filter 16, and valve 13 is separately mounted to water by flange
The inlet and outlet of 15 water lines of cooler, the discharge for controlling cooling water, and then control the temperature of Seal Oil；Mechanical filter 16 into
Outlet is connect by flange with valve 13, passes through flange and water cooler 15 and magnetic after 13 parallel connection of two mechanical filters 16 and valve
Filter 17 connects；After 17 entrance of magnetic filter is connect by pipeline with valve 13 in access leakproof fuel cell 9, temperature sensor 5,
Pressure sensor 14 is connected through a screw thread on installation 17 subsequent pipeline of magnetic filter；Institute's buffer oil tank 18 is cylindrical tube,
Volume 1m3, installation site is higher than experiment host, for preventing from powering off suddenly or other situations, is damaged in docking process close
Envelope watt or other auxiliary equipments, 18 bottom of buffer oil tank are provided with the inlet and outlet of oil circuit, and top is provided with stomata, buffer oil tank 18
Oil circuit import is connect by flange with the outlet of magnetic filter 17, and outlet is connect by flange with the oilhole 30 on sealing bearing bush seat 4,
The stomata at top is connect by flange with air accumulator 20；Temperature sensor 5, flow sensor 8, pressure sensor 14 are installed on slow
It rushes on the pipeline among 18 oil pipe way outlet of fuel tank and sealing bearing bush seat 4；The air compressor 19 outlet successively with air accumulator 20,
Air reducing valve 21, air cleaner 22, air dryer 23 connect, and the outlet of air dryer 23 passes through underwater flange and sealing
Stomata 33 on watt seat 4 connects；Air accumulator 20 is cylindrical tube, volume 0.3m3, both sides have the entrance of compressed air
And outlet, for air accumulator 20 for stablizing air pressure, the compressed air pressure for ensureing to enter in the stomata 31 on sealing bearing bush seat 4 is permanent
It is fixed.
The invention is several by experiment host, main fuel tank, oil pump, oil cooler, filter, buffer oil tank, air compressor machine, gas storage mechanism
Big component composition.
Wherein experiment host is bolted on above main fuel tank, and oil pump is located on the right side of main fuel tank, and the entrance of oil pump is logical
Flange to be crossed to connect with fuel tank, fuel pump outlet is attached by flange and oil cooler, and oil cooler outlet is connect with filter inlet,
Filter outlet is connect by flange with buffer oil tank entrance, and buffer oil tank outlet is connect by flange with experiment host.Pneumatics
Machine outlet connect by flange with gas storage mechanism entrance, and the outlet of gas storage mechanism passes through flange and connect with host is tested.
The experiment host includes mainly alternating current generator, main shaft, wheel disc, sealing bearing bush seat, temperature sensor, rotating speed biography
Sensor, vibrating sensor etc..Alternating current generator drives main shaft and wheel disc to 3000 turns by half around property coupling band, for simulating steamer
The normal operating condition of generating set, temperature sensor, speed probe, vibrating sensor, flow sensor pass through spiral shell screw thread
It is connected on sealing bearing bush seat, for ginsengs such as vibration, rotating speed, the sealing bearing bush temperature tested in monitoring test host operational process
Number.
The main fuel tank includes mainly leakproof fuel cell, electric heater, gs-oil separator.Leakproof fuel cell is bolted
In ground base, electric heater is placed in inside leakproof fuel cell, for being heated to Seal Oil before opening machine, gs-oil separator
It is connected between sealing bearing bush seat and leakproof fuel cell by pipe flange, Seal Oil and sky for detaching sealing bearing bush gas side leakage current
Gas.
The oil pump is frequency conversion oil pump, provides power for the sealing bearing bush experimental rig sealing oil circuit, guarantee enters examination
Test the oil pressure Pass Test requirement in host.
The oil cooler is water cooler.Water cooler oil pipe line entrance is connect with oil pump, and outlet passes through flange and mechanical mistake
Filter connects, for being cooled down to sealing oil temperature during experiment, ensureing sealing oil temperature within the scope of test requirements document.Water
Cooler has independent chilled(cooling) water return (CWR) for coolant seal oil.
The filter mainly has mechanical filter, magnetic filter, mechanical filter inlet and outlet to pass through flange and valve
Connection, the entrance after two mechanical filter parallel connections are connected by flange and water cooler outlet, mechanical filter outlet and magnetic mistake
Filter inlet is connected again, and magnetic filter outlet is connect with buffer oil tank.Filter is mainly used for close by experiment to entering
The Seal Oil of envelope watt is filtered, and ensures oily Pass Test requirement.
The buffer oil tank is cylindrical tube, and installation site is higher than experiment host, powered off suddenly for preventing or
Other situations damage sealing bearing bush or other auxiliary equipments in docking process.
The air compressor machine is air compressor, for for providing the compressed air needed for sealing bearing bush experiment.
The gas storage mechanism includes air accumulator, air reducing valve, air cleaner, air dryer.Air accumulator entrance
Between air compressor machine outlet connecting pipe line, it is sequentially installed with air reducing valve, air cleaner, air dryer, ensures have
The clean air of rated pressure enters in air accumulator, and reservoir outlet is connect with experiment host, is provided for sealing bearing bush experiment specified
The compressed air of pressure.
Embodiment
As shown in Figure 1 and Figure 2, a kind of generator sealing bearing bush simulated experiment rack, it includes alternating current generator 1, main shaft 2, wheel disc
3, sealing bearing bush seat 4, temperature sensor 5, speed probe 6, vibrating sensor 7, flow sensor 8, leakproof fuel cell 9, electrical heating
Device 10, gs-oil separator 11, frequency conversion oil pump 12, valve 13, pressure sensor 14, water cooler 15, mechanical filter 16, Magnetic filter
Device 17, buffer oil tank 18, air compressor 19, air accumulator 20, air reducing valve 21, air cleaner 22, air dryer 23,
Bearing 24, coupling sleeve 25, adjustment backing plate 27, key 28, partition board 29, hanging pin 34.
As shown in Figure 1 and Figure 2, alternating current generator 1 is attached by half around property coupling band 27, key 30 and main shaft 2, and main shaft 2 is logical
It crosses bolt to be attached with wheel disc 3, the material and size of wheel disc 3 need to be with the generator amature material installed by experiment sealing bearing bush
Matter, size are consistent, and jerk value controls within 0.015mm, and wheel disc is built-in to be supported there are two high-precision bearing 24, sealing bearing bush
26 are hung over by hanging pin 34 on adjustment backing plate 27, and are sleeved on wheel disc 3, are separated with partition board 29 among two pieces of sealing bearing bushes, two pieces
Adjustment backing plate 27 must assure that it is parallel, within depth of parallelism 0.02mm.4 top of sealing bearing bush seat is provided with oilhole 30, stomata 31, circumferentially opens
Have 10 measured holes for mounting temperature sensor 5, speed probe 6, vibrating sensor 7, lower section be provided with vapour side oil return hole a,
Vapour side oil return hole b, sealing bearing bush seat 4 are bolted on alternating current generator 1, alternating current generator 1 by bolt and leakproof fuel cell 9 into
Row connection.
As shown in Figure 1 and Figure 2, leakproof fuel cell 9 is pyramid fuel tank, volume 10m3, tank bottoms are square, 4 weeks
It being bolted in ground base, fuel tank top is connect with alternating current generator 1, and electric heater 10 is placed in inside leakproof fuel cell 9,
Electric heater 10 is high intensity stick electrical heating elements, the preferred 8-12 groups of quantity.Gs-oil separator 11 is by flanged joint 32
Between vapour side oil return hole a, 33 vapour side oil return hole b and leakproof fuel cell 9.
As shown in Figure 1,12 entrance of frequency conversion oil pump is connected by flange and 9 bottom oil circuit outlet of leakproof fuel cell, frequency conversion oil pump
12 outlets are connect by flange with valve 13, and 13 other end of valve is connected by the oil pipe line entrance of flange and water cooler 15
It connects, pressure sensor 14, temperature sensor 5 are threadedly attached on the pipeline among valve 13 and water cooler 15.Water cooler
15 oil pipe way outlets are connect by flange with mechanical filter 16, and valve 13 is separately mounted to 15 water lines of water cooler by flange
Inlet and outlet, the discharge for controlling cooling water, so control Seal Oil temperature.
As shown in Figure 1, the inlet and outlet of mechanical filter 16 are connect by flange with valve 13, two mechanical filters 16 and valve
It is connect with water cooler 15 and magnetic filter 17 by flange after 13 parallel connections of door.17 entrance of magnetic filter is connected by pipeline and valve 13
It is accessed in leakproof fuel cell 9 after connecing, it is subsequent that temperature sensor 5, pressure sensor 14 are connected through a screw thread installation magnetic filter 17
On pipeline.
As shown in Figure 1 and Figure 2, buffer oil tank 18 is cylindrical tube, volume 1m3, installation site is higher than experiment host,
For preventing power-off or other situations suddenly, sealing bearing bush or other auxiliary equipments are damaged in docking process.18 bottom of buffer oil tank
Portion is provided with the inlet and outlet of oil circuit, and top is provided with stomata, and 18 oil circuit import of buffer oil tank passes through flange and magnetic filter 17
Outlet connection, outlet are connect by flange with the oilhole 30 on sealing bearing bush seat 4, and the stomata at top is connected by flange and air accumulator 20
It connects.Temperature sensor 5, flow sensor 8, pressure sensor 14 are installed on 18 oil pipe way outlet of buffer oil tank and sealing bearing bush seat 4
On intermediate pipeline.
As shown in Figure 1 and Figure 2, air compressor 19 outlet successively with air accumulator 20, air reducing valve 21, air cleaner
22, air dryer 23 connects, and the outlet of air dryer 23 is connect by underwater flange with the stomata 33 on sealing bearing bush seat 4.Storage
Gas tank 20 is cylindrical tube, volume 0.3m3, both sides have an entrance and exit of compressed air, and air accumulator 20 is for steady
Determine air pressure, ensures that the compressed air pressure entered in the stomata 31 on sealing bearing bush seat 4 is constant.
Illustrate that a kind of work of generator sealing bearing bush simulated experiment rack provided by the present invention is former with reference to Fig. 1, Fig. 2
Reason：In order to simulate by the true operating status of experiment sealing bearing bush, this test-bed simulates the experiment master of Turbo-generator Set operation
Machine, sealing oil system and compressed air system.
It tests host and provides power by alternating current generator 1, main shaft 2, wheel disc 3 is made to reach the rated speed of 3000r/min, be tested
The sealing bearing bush 26 tested is hung over by hanging pin 34 on adjustment backing plate 27, and is sleeved on wheel disc 3, it is ensured that is being taken turns by experiment sealing bearing bush 26
On disk 3 can free floating, separated with partition board 29 among two pieces of sealing bearing bushes.The Seal Oil of rated pressure (such as 0.58MPa) is logical
Oil-through hole 30 enters two pieces by the wedge gap between sealing bearing bush 26 and wheel disc 3, with the pressure of rated pressure (such as 0.5Mpa)
Contracting air substitutes hydrogen, is entered in the annular compartment formed with partition board among two pieces of sealing bearing bushes by stomata 31, for simulating
Hydrogen state in generator thorax.The Seal Oil in the sealing bearing bush 26 tested is entered, it is most of to pass through empty side oil return hole 35
It is flow back into leakproof fuel cell 9, it is gentle to respectively enter gas side oil return hole a for pressure of the sub-fraction Seal Oil due to overcoming compressed air
Side oil return hole b, then by gs-oil separator 11 by after Seal Oil and compressed air separation, Seal Oil flow back into leakproof fuel cell 9.Sealing
10 measured holes that watt seat 4 is circumferentially opened are equipped with temperature sensor 5, speed probe 6, vibrating sensor 7, for continual
Measure sealing bearing bush temperature, the speed of mainshaft and Vibration Condition during testing.
Sealing oil system is by leakproof fuel cell 9, frequency conversion oil pump 12, water cooler 15, mechanical filter 16, magnetic filter 17, slow
Rush fuel tank 18, gs-oil separator 11 collectively constitutes.12 outlet pressure of frequency conversion oil pump is adjusted to rated pressure by Frequency Converter Control,
Such as 0.58Mpa, Seal Oil is transported to from leakproof fuel cell 9 in water cooler 15 with constant pressure, water cooler 15 belongs to surface-type
Heat exchanger cools down Seal Oil by cooling water, and Seal Oil after cooling enters mechanical filter 16 and magnetic filter
17, filtration machinery impurity and magnetisable material respectively, later Seal Oil enter in buffer oil tank 18, by buffer oil tank 18 again into
Enter into experiment host the oilhole 30 on sealing bearing bush seat 4, eventually enters by between the wedge shape between experiment sealing bearing bush 26 and wheel disc 3
Gap.Pressure sensor 14, temperature sensor 5, flow sensor 8 for input pressure during continual experiment, inlet oil temperature,
Returning-oil temperature, into oil stream amount, return flow.
Compressed air system is used to simulate the operating status of hydrogen in generator hall, the outlet of air compressor 19 successively with sky
Gas pressure reducing valve 21, air cleaner 22, air dryer 23,20 entrance of air accumulator connection, by air reducing valve 21 ensure into
Enter to the compressed air temperature in air accumulator 20 in rated pressure, such as 0.5Mpa, air cleaner 22 and air dryer 23
Cleaning drying for ensureing compressed air, air accumulator 20 export the stomata 31 being connected in experiment host on sealing bearing bush seat 4, use
In providing the compressed air needed for sealing bearing bush experiment, temperature sensor 5, pressure sensor 14 enter stomata for continuing to monitor
The pressure and temperature of compressed air in 33.The another stomata for thering is a branch to be connected to 18 top of buffer oil tank, for ensureing prominent
So power-off or other in the case of, buffer oil tank can provide the Seal Oil of short time in docking process, avoid damage sealing bearing bush
Or other auxiliary equipments.
Above in conjunction with attached drawing, invention is explained in detail, but the present invention is not limited to examples detailed above, in ability
In the knowledge that the those of ordinary skill in domain has, relevant parameter, changing main-spindle 2, wheel disc 3, not are arranged by change
Under the premise of being detached from present inventive concept, the purpose tested different types of sealing bearing bush may be implemented.Description of the invention
In the content that is not described in detail can be used the prior art, such as temperature sensor 5, speed probe 6, vibrating sensor 7,
Flow sensor 8, valve 13, pressure sensor 14, water cooler 15, air reducing valve 21, air cleaner 22, air dryer
23, the product of the prior art can be used in bearing 24.
Claims (1)
1. a kind of generator sealing bearing bush simulated experiment rack, it is characterised in that：Including alternating current generator (1), main shaft (2), wheel disc
(3), sealing bearing bush seat (4), temperature sensor (5), speed probe (6), vibrating sensor (7), flow sensor (8), sealing
Fuel tank (9), electric heater (10), gs-oil separator (11), frequency conversion oil pump (12), valve (13), pressure sensor (14), water cooling
Device (15), mechanical filter (16), magnetic filter (17), buffer oil tank (18), air compressor (19), air accumulator (20), sky
Gas pressure reducing valve (21), air cleaner (22), air dryer (23), bearing (24), coupling sleeve (25), adjustment backing plate (27),
Key (28), partition board (29), oilhole (30), stomata (31), vapour side oil return hole a (32), vapour side oil return hole b (33), hanging pin (34) and
Empty side oil return hole (35), wherein alternating current generator (1) are attached by half around property coupling band (27), key (30) and main shaft (2), main
Axis (2) is attached by bolt and wheel disc (3), and the material and size of wheel disc (3) need to be with the hair installed by experiment sealing bearing bush
Rotor material, size are consistent, jerk value control within 0.015mm, wheel disc it is built-in there are two high-precision bearing (24) into
Row support, sealing bearing bush (26) is hung over by hanging pin (34) on adjustment backing plate (27), and is sleeved on wheel disc (3), two pieces of sealing bearing bushes
Centre separated with partition board (29), two pieces adjust backing plates (27) must assure that it is parallel, within depth of parallelism 0.02mm；Sealing bearing bush seat (4)
Top is provided with oilhole (30), stomata (31), is circumferentially provided with ten measured holes for mounting temperature sensor (5), speed probe
(6), vibrating sensor (7), lower section are provided with vapour side oil return hole a (32), vapour side oil return hole b (33), and sealing bearing bush seat (4) passes through bolt
It is fixed on alternating current generator (1), alternating current generator (1) is attached by bolt and leakproof fuel cell (9)；Leakproof fuel cell (9) is gold
Word turriform fuel tank, volume 10m3, tank bottoms are square, and week is bolted in ground base, fuel tank top with
Alternating current generator (1) connects, and electric heater (10) is placed in leakproof fuel cell (9) inside, and electric heater (10) is that high intensity stick electricity adds
Thermal element, preferably eight to 12 groups of quantity；Gs-oil separator (11) is returned by flanged joint in vapour side oil return hole a (32), vapour side
Between oilhole b (33) and leakproof fuel cell (9)；Frequency conversion oil pump (12) entrance is exported by flange and leakproof fuel cell (9) bottom oil circuit
Connection, frequency conversion oil pump (12) outlet are connect by flange with valve (13), and valve (13) other end passes through flange and water cooler
(15) oil pipe line entrance is attached, pressure sensor (14), temperature sensor (5) be threadedly attached in valve (13) with
On the intermediate pipeline of water cooler (15)；Water cooler (15) oil pipe way outlet is connect by flange with mechanical filter (16), valve
(13) it is separately mounted to the inlet and outlet of water cooler (15) water lines, the discharge for controlling cooling water by flange, and then controls
The temperature of Seal Oil；Mechanical filter (16) inlet and outlet connect with valve (13) by flange, two mechanical filters (16) and
It is connect with water cooler (15) and magnetic filter (17) by flange after valve (13) is in parallel；Magnetic filter (17) entrance passes through pipeline
It is accessed in leakproof fuel cell (9) after being connect with valve (13), temperature sensor (5), pressure sensor (14) are connected through a screw thread peace
It fills on magnetic filter (17) subsequent pipeline；Institute's buffer oil tank (18) is cylindrical tube, volume 1m3, installation site is higher than
Host is tested, for preventing power-off or other situations suddenly, sealing bearing bush or other auxiliary equipments, buffering are damaged in docking process
Fuel tank (18) bottom is provided with the inlet and outlet of oil circuit, and top is provided with stomata, buffer oil tank (18) oil circuit import by flange with
The outlet of magnetic filter (17) connects, and outlet is connect by flange with the oilhole (30) on sealing bearing bush seat (4), and the stomata at top is logical
Flange is crossed to connect with air accumulator (20)；Temperature sensor (5), flow sensor (8), pressure sensor (14) are installed on buffering oil
On pipeline among case (18) oil pipe way outlet and sealing bearing bush seat (4)；The air compressor (19) outlet successively with air accumulator
(20), air reducing valve (21), air cleaner (22), air dryer (23) connection, air dryer (23) outlet pass through
Underwater flange is connect with the stomata (33) on sealing bearing bush seat (4)；Air accumulator (20) is cylindrical tube, volume 0.3m3, both sides point
It is not provided with the entrance and exit of compressed air, air accumulator (20) ensures to enter the gas on sealing bearing bush seat (4) for stablizing air pressure
Compressed air pressure in hole (31) is constant.
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| CN111060313A (en) * | 2019-12-23 | 2020-04-24 | 河北工业大学 | Sliding bearing performance test experiment table under oil film cavitation state |
| CN111536406A (en) * | 2019-07-04 | 2020-08-14 | 电子科技大学中山学院 | New forms of energy electric automobile's driving motor lubricating system |
| CN111981956A (en) * | 2020-07-21 | 2020-11-24 | 东方电气集团东方电机有限公司 | Device and method for factory testing of parallelism of bearing of steam turbine generator |
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| CN111981956A (en) * | 2020-07-21 | 2020-11-24 | 东方电气集团东方电机有限公司 | Device and method for factory testing of parallelism of bearing of steam turbine generator |
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