CN106536857B - The method and auxiliary device be balanced to gas turbine rotor - Google Patents
The method and auxiliary device be balanced to gas turbine rotor Download PDFInfo
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- CN106536857B CN106536857B CN201580024251.6A CN201580024251A CN106536857B CN 106536857 B CN106536857 B CN 106536857B CN 201580024251 A CN201580024251 A CN 201580024251A CN 106536857 B CN106536857 B CN 106536857B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/027—Arrangements for balancing
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Balance (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of method of balance fuel gas turbine wheel, wherein gas turbine rotor have the multiple leaf dishes continuously arranged along line, and described method includes following steps：Obtain the misalignment measurement of the leaf dish of gas turbine rotor in initial configuration；Based on misalignment measurement, at least two danger zones of rotor are identified, wherein variation eccentric between continuous leaf dish does not meet acceptance criteria；Identification is arranged at least first group of continuous leaf dish between two danger zones；Determine at least one corrective action of rotor, which is included in the relative rotation that axis is surrounded between two continuous leaf dishes of first group of leaf dish；And perform corrective action.
Description
Technical field
The present invention relates to a kind of method being balanced to gas turbine rotor and auxiliary devices.
Background technology
As known, it generally includes multiple to fill vaned leaf for the gas turbine rotor of power generation in industrial system
Disk and one or more spacer elements, these components are aligned along axis and are coupled in front.Leaf dish and spacer element are by
Centre tie-rod is clamped.Leaf dish has respective array of vanes, and each leaf dish limits the stage of compressor or turbine.
The rotor of gas turbine must carry out high-precision manufacture and assembling, to ensure close to perfect balance.It considers
Quality and high speed rotation (according to the standard of country variant, usually in 3000rpm or 3600rpm), even minimum mistake
Also it can cause dangerous vibration, and typically result in the premature aging of some components.
The gas turbine rotor no matter to dispatch from the factory be considered as how appropriate balance, rotor own wt, operating temperature and
The load formed during rotation can cause quality to change relative to many symmetry of axis with the time.In fact, when in use
Gravity is intended to make only to obtain the rotor deformation of the support of bearing in end.
It is this flat to restore appropriate equilibrium state often it is necessary to intervene running gas turbine rotor
Although weighing apparatus state is simultaneously non-ideal, always within tolerance interval.
In some cases, relatively low invasive intervention may be carried out, such as increases in the shell suitably provided and puts down
Weight amount.
However at other, unbalanced situation can not be only compensated by these operations, it is necessary to be dismantled and be turned
Son corrects the relative direction of leaf dish group, to eliminate alignment error.
The operation for dismantling and ressembling rotor is very expensive, especially because this means that very long-term machine down
Time or even the several weeks of being.It is thus apparent that it is extremely important to be reduced as far as this kind of intervention required time.
Regrettably, identify which leaf dish needs to rotate and rotates the problem of how many angle are extremely complex, and lead to
The scheme assert on Chang Eryan paper is in practice and inappropriate, because various X factors can not consider completely.For example, continuous leaf
Contact surface between disk may due to the use of and cause deformation or failure, this can cause unforeseen relative rotation.Such as
Fruit theory scheme can not provide desired effect and either detect display rotor not up to balance or not balance fully, then must weigh
Resurgent journey and waste a large amount of time.
Invention content
The object of the present invention is to provide a kind of method being balanced to gas turbine rotor and auxiliary device, to avoid or
Person at least weakens the defects of described.
According to the present invention, a kind of method being balanced to gas turbine rotor is provided, wherein gas turbine rotor has
There are the multiple leaf dishes continuously arranged along line, this method includes：
Obtain the misalignment measurement of the leaf dish of reaction wheel in initial configuration；
Based on misalignment measurement, at least two danger zones of rotor are identified, wherein variation eccentric between continuous leaf dish is not
Meet acceptance criteria；
Identification is arranged at least first group of continuous leaf dish between two danger zones；
Determine at least one corrective action of rotor, the corrective action is included in two continuous leaf dishes of first group of leaf dish
Between surround axis relative rotation；And
Perform the corrective action.
According to another aspect of the present invention, a kind of auxiliary device of balance fuel gas turbine wheel, wherein gas turbine are provided
Rotor has the multiple leaf dishes continuously arranged along line, which includes：
Measuring instrument, for detecting eccentric dependency number of each leaf dish relative to the rotary shaft for the rotor being placed in support
According to；And
Treating stations are used for：
Obtain the misalignment measurement of the leaf dish of reaction wheel in initial configuration；
Based on misalignment measurement, at least two danger zones of rotor are identified, wherein variation eccentric between continuous leaf dish is not
Meet acceptance criteria；
Identification is arranged in the continuous leaf dish of at least one set between two danger zones；And
Determine at least one corrective action of rotor, the corrective action is included in two continuous leaf dishes of first group of leaf dish
Between surround axis relative rotation.
Description of the drawings
Referring now to the following drawings, the present invention will be described, and attached drawing shows some non-limiting implementations of the present invention
Example, wherein：
Fig. 1 be gas turbine rotor along the vertical view on horizontal axial plane, and show according to embodiments of the present invention
Simplified block diagram about the auxiliary device being balanced to gas turbine rotor；
Fig. 2 a are the diagrams of the eccentric part of rotor in Fig. 1；
Fig. 2 b are to show in the initial state, the schematic diagram of the first polar coordinates misalignment measurement of rotor in Fig. 1；
Fig. 3 is the simplified flowchart of the method according to an embodiment of the invention being balanced to gas turbine rotor；
Fig. 4 is the more detailed flow chart of method and step in Fig. 3；
Fig. 5 is the schematic diagram for showing to measure extracted eccentricity component from first in Fig. 2；
Fig. 6 shows the first amount employed according to the method for the present invention；
Fig. 7 shows the second amount employed according to the method for the present invention；
Fig. 8 is the more detailed flow chart of the further measure of method in Fig. 3；
Fig. 9 is to show in the initial state, the schematic diagram of the second polar coordinates misalignment measurement of rotor in Fig. 1；
Figure 10 is to show to measure extracted eccentric part from second in Fig. 9；
Figure 11 is shown under actual correction state, the schematic diagram of the third polar coordinates misalignment measurement of rotor in Fig. 1；And
Figure 12 is the eccentricity component for showing to measure extraction from second in Figure 11.
Specific embodiment
With reference to Fig. 1, electricity generation system gas turbine rotor is indicated as a whole with reference numeral 1, including multiple along axis A
The leaf dish 2 for arranging and being clamped by central tie-rod 3.The first leaf dish group 2 with respective the first rotor blade 5 limits rotor 1
Compression section 1a, while there is the second leaf dish group 2 of the second rotor blade 6, limit the turbine section 1b of rotor 1.Compression section 1a and
Turbine section 1b is not by having the vaned substantial cylindrical leaf dish 2 for being used as spacer element to be in practice separated from each other.In use,
The toroidal combustion chamber (not shown) of gas turbine can be arranged in around the leaf dish 2 of interval.
Fore bearing engaging portion 7 and rear bearing combining part 8 are contained in the first end plate and the second end plate respectively, before being also referred to as respectively
Or front hollow shaft and rear hollow shaft, it is indicated herein by reference numeral 2a, 2b.
For convenience, unless carrying out other explanations, hollow shaft 2a before " leaf dish 2 " will indicate as a whole hereinafter, in rear
The leaf dish 2 of empty axis 2b, compression section 1a, the leaf dish 2 of turbine section 2b and interval leaf dish 2.
Fig. 1 also illustrates the auxiliary device being balanced to reaction wheel, is indicated with reference numeral 10, and including place
Reason station 11 and measuring instrument 12.
Treating stations 11 receive measurement data from measuring instrument 12, and determine repairing for rotor 1 according to the data received
Positive status, wherein the state of amendment is rotated relative at least one leaf dish 2 of original state, to reduce the totality of rotor 1 not
Balance.
Measuring instrument 12 can be moved along the axis A of rotor 1, and rotor 1 is installed on the substrate (not shown) of turbine lower half
Or lathe (wherein only has the axis 13b of bearing combining part 8 after the steady rest 13a for supporting fore bearing engaging portion 7 and support, with letter
Change mode is shown；Obtain feeling relieved relative to the zero bias heart of rotary shaft by precise locating fixture) on.
Measuring instrument 12 obtains the phase about rotor 1Information (for example, passing through decoder or rotation and angular speed
Detector) and the information of shaft position PA that measures on it.
Measuring instrument 12 can be it is thus determined that each leaf dish 2 be relative to the eccentric data of 1 practical rotary shaft AR of rotor, rotor 1
It is supported by the axis 13b of machine bearing or steady rest 13a and lathe and (also sees Fig. 2 a：There are during alignment errors, reality is revolved
Shaft is not completely the same with the center C of the theoretical axis A of not deformed rotor 1 and leaf dish 2；Further, when being carried out on lathe
During measurement, practical rotary shaft AR can also be determined by combining steady rest 13a mistakes parallel with axis 13b's, in example
It is described).By on lathe a kind of (or being used as selection, on the bearing of machine lower half) rotor 1 determine it is inclined
The heart, and determine that a position is perpendicular to the vibration of practical rotary shaft AR on each leaf dish surface.In practice, periodic output signal
It is recorded.The amplitude and phase of output signal fundamental wave determine the center C of the leaf dish 2 in observation relative to practical rotary shaft
The presence of AR (also seeing Fig. 2 a) deviation and the bias direction relative to 1 reference direction of axis.On the contrary, output signal is secondary
Harmonic wave determines the ellipticalness of the component checked.In addition, (lead to relative to gravity axis in positive round leaf dish 2 and practical rotary shaft
Often gas turbine rotor) inclined situation when, second harmonic contribute to estimate 1 axis A corresponding positions of rotor curvature.
In one embodiment, the output data (and eccentric data) about each leaf dish 2 is by during multiple rotations of rotor 1
It measures, and by being determined to determining to measure progress average operation.In one embodiment, such as treating stations 11：It determines
The Fourier's variation for the output data part that rotor 1 each rotates, measures the leaf dish 2 in inspection during rotation；Inspection
Eccentric peak-to-peak value (is rotated) in n times in the repeatable range in measuring instrument determined by looking into；From each portion of output signal
The transformation average value of the output signal of the frequency range corresponding to fundamental wave (for example, preceding four-time harmonic) presented is divided to determine average output letter
Number；And determine the inverse transformation of average output signal.Average calculating operation can reduce and estimate measurement error.
Fig. 2 b show that in one example, one group of misalignment measurement that polar coordinates are presented, eccentricity vector E1 ..., EP have
The amplitude and phase of all leaf dishes 2 in the initial state of rotor 1.
Treating stations 11 are for execution referring to the described processes of Fig. 3.
First, treating stations 11 detect the consistency of the data received from measuring instrument 1, and correct any Acquisition Error
(frame 100).For example, the non-zero eccentricity value of fore bearing engaging portion 7 or rear bearing combining part 8 means to turn on lathe (not shown)
The incomplete alignment of son 1.Alignment error influences the misalignment measurement of all leaf dishes 2.In this case, treating stations 11 are directed to rotor
1 all leaf dishes 2 determine to be combined caused eccentric contribution by the inaccuracy with lathe, and carried from by measuring instrument 12
The data of confession subtract obtained contribution.
Once error is eliminated, measuring station 11 checks whether rotor 1 needs to balance, such as by will be from measuring instrument institute
The equilibrium index that the data of offer are obtained is compared (frame 110) with threshold value.If (frame 110, output need not be balanced
It is no), then EP (end of program) (frame 120).
Otherwise (frame 110, output are), treating stations 11 identify the danger zone of rotor 1, i.e., between eccentric variation it is higher
2 pairs of leaf dish or group (frame 130).Process about danger zone identification then further will in detail be retouched later with reference to Fig. 4
It states.
If there is at least two danger zones (frame 140, output are), treating stations 11 determine the corrective action (frame of rotor 1
150), otherwise (frame 140, output are no) EP (end of program) (frame 120).
When that can perform correction intervention, these measures are defined as between at least a pair of continuous leaf dish 2 by treating stations 11
Relative rotation, and continuous leaf dish 2 keeps certain angle with other leaf dishes 2 of upstream and downstream respectively.In one embodiment, opposite rotation
Turn to be defined, and be arranged at fore bearing engaging portion 7 (Fig. 1) about the gravity axis of leaf dish 2 that rotation is related to, it is special
It is not gravity axis perpendicular to the surface of of leaf dish 2 itself.In this way, in practice two sections of rotor 2 with respect to each other
Rotation.Each section is bound respectively by one in two leaf dishes 2, and relative rotation is set between two leaf dishes 2.
Then treating stations 11 are determined as the configuration (frame 160) caused by corrective action, and assessment result configuration whether with it is secondary
Excellent scheme corresponds to, i.e., the scheme (frame 170) of object function that at least partially optimization instruction is balanced rotor 1.
If (frame 170, output are no) inconsistent with suboptimal design, the result that treating stations 11 are identified with regard to exclusion is configured in result
Be configured and determine new corrective action and new result configuration (frame 180).
If on the contrary, result configuration is exactly sub-optimal configuration (frame 170, output are), treating stations 11, which are also assessed, meets balance strip
Part (if for example, expected equilibrium index associated with result configuration is less than threshold value, frame 180).
If result configuration do not meet, process terminates in the case of no scheme (frame 180, export it is no；Frame 120).
If it is not, then test, by (frame 180, output are), the scheme identified is considered as that reliable and corresponding correction is arranged
It applies to obtain practical execution (according to result configuration is identified, rotor is opened and ressembles).
Once corrective action has performed, reuse measuring instrument 12 and rotor 1 is measured, and treating stations 11 are adopted
Final balance (frame 190) is checked with newer data.
The program in hazard recognition region is based on observation, observes fault-free and obtains the rotor of bearings near end
There is the bending of generally rule due to weight, and rotor tends to be arranged according to radian.The leaf dish for forming rotor has
Given bias, it is eccentric to increase from end towards rotor center.Eccentric variation is relatively low between continuous leaf dish, and with continuous
The line of the respective point that is linked in sequence (such as center) of leaf dish can also be by satisfactory manner come near linear.This institute
During description, all groups all identified (N can easily be selected from 3,4,5) of N number of continuous leaf dish 2.For every
For one group, all it is determined relative to the interpolating function and the margin of tolerance of ideal case.
Interpolating function is chosen inside the group of functions of the configuration for the rotor 1 for describing no symmetry errors (ideal situation).
Tolerance factor is determined about interpolating function, it is contemplated that the asymmetry for being related to measurement error between continuous leaf dish 2
And acceptable processing and build-up tolerance, including, such as：
The self-centering shell on each 2 opposite of leaf dish and detect output data leaf dish 2 outer between bias (such as outside
Along 10 μm between the shell in each face)；
Parallel mistake between the self-centering shell on each 2 opposite of leaf dish.
Whether acceptance criteria is the misalignment measurement based on one group of continuous leaf dish 2 in the corresponding margin of tolerance.If investigation
At least one of 2 misalignment measurement of leaf dish beyond the margin of tolerance, identical group of leaf dish 2 in investigation is danger zone.
Hazard recognition region is described in detail with reference to attached drawing 4 later.
(frame 200) first, treating stations 11 are eccentric come definitive result by vector sum, indicated in fig 2 with ER (for letter
Just, as a result bias ER is presented only with example rather than in proportion).Then, treating stations 11 determine the eccentric institute of the single leaf dish 2 of instruction
There is each projection of the vector on result vector ER directions.The eccentricity component ER1 ..., ERP being achieved in that are shown in edge in Fig. 5
The position of each leaf dish 2 of axis A.
N number of continuous leaf dish 2 of all groups in rotor 1 is identified (frame 210), that is, in practice：There are two straight for tool
Continue the preceding hollow shaft of leaf dish in succession；Three leaf dishes in the preceding direct downstream of hollow shaft etc.；Up to including turbine section most latter two
Last group of leaf dish and rear hollow shaft.In one embodiment, include three leaf dishes 2 for every group.
To every group of leaf dish 2, treating stations 11 determine interpolating function (F in figs. 6 and 7；Fig. 4, frame 220) and corresponding public affairs
Poor range (the R in Fig. 6 and 7；Fig. 4, frame 230).
Interpolating function F can be, for example, the up to moving average in quartic polynomial function or appropriate period.Interpolation
The number of function F can be selected according to the quantity N of every group of affiliated leaf dish 2.The quantity N for belonging to every group of leaf dish 2 is bigger, inserts
The number of value function F is bigger.In the example of Fig. 6 and 7, the quantity N of every group of leaf dish 2 is 3, and interpolating function F is primary more
Item formula function, that is to say, that straight line.
On the misalignment measurement of each group of continuous leaf dish (2), interpolating function F can be determined with common least square method
(in the case of Fig. 6 ERJ, ERJ+1, ERJ+2；ERK, ERK+1, ERK+2 in the case of Fig. 7).
In addition, in one embodiment, margin of tolerance R is amplitude band W, centered on interpolating function F and is prolonged
It stretches.
Treating stations 11 check the misalignment measurement ERQ of identical group of all leaf dishes 2, and whether ERQ+1, ERQ+N-1 are in respective
Margin of tolerance R in (frame 240).
If the misalignment measurement of all leaf dishes 2 is all in (frame 240, output are) in respective margin of tolerance R in group, by this
2 group echo of leaf dish is qualified (frame 250；Such as misalignment measurement ERK in Fig. 7, in the case of ERK+1, ERK+2).
If on the contrary, at least one in the misalignment measurement of leaf dish 2 is in except margin of tolerance R (frame 240, output in group
It is no), then this group of leaf dish is labeled as danger zone (frame 260；As Fig. 6 misalignment measurement ERJ, ERJ+1, ERJ+2 in the case of).
In the example of hgure 5, it is omitted identification labeled as the group of danger zone.
For all 2 groups of selections for repeating margin of tolerance R and interpolating function of the continuous leaf dish identified and interpolation
Function belongs to the inspection of margin of tolerance R.
With reference to Fig. 8, in order to determine the corrective action of rotor 1, treating stations 11 are excluded first in the group labeled as danger zone
Leaf dish 2 (frame 300), and identify the group farther out (frame 310) of the candidate leaf dish 2 behind two between danger zone.The candidate leaf of this group
Disk 2 includes the minimum number of continuous leaf dish 2, such as 5.
For each pair of leaf dish 2 (frame 320) of candidate 2 groups of leaf dish, treating stations 11 determine multiple modification configurations, for rotor 1
All leaf dishes 2 determine corresponding expected eccentric (frame 330；Also in the example for seeing Fig. 9 and 10, wherein expected eccentric label for
Eccentricity vector E1 ' ..., EP ' and each component ER1 ' ..., ERP ' along result bias ER ' directions), and for each
Modification configuration, which calculates, represents expected unbalanced quality parameter (frame 340).
For example, for each pair of leaf dish 2, treating stations 11 determine 180 modification configurations, and modification configuration has about initial configuration
In 180 ° of tilted 1 ° of ± 90 ° of ranges.
In one embodiment, quality parameter is remaining momentum weight PRM, is defined as the big of rotor aggregated momentum weight
It is small and consider that component is eccentric and its quality.Particularly, remaining momentum weight is defined as：
Wherein Mj is the quality (may have respective blade) of 2 J leaf dishes, and EJ is to define 2 J leaf dishes bias
Vector.
Alternatively, quality parameter can be expected unbalanced index IS, be defined as：
Wherein | | EJ | | it is to define the eccentric vectorial size of 2 J leaf dishes, INOMIt is the nominal moment of inertia of rotor 1, and C
It is constant (such as 109)。
Optionally, quality parameter can be that the cumulative maximum on quadrant MEQ is eccentric, as heuristic parameter, according to as follows
It calculates：
The sector of given amplitude (such as 60 °) is defined about practical rotary shaft AR；
The size of eccentricity vector E1 ..., EP in sector are added；
Sector is rotated in whole circumference with constant space, all eccentricity vectors that will be presented in sector every time
The size of E1 ..., EP sums up；
Identify that maximum sector of the sum of size of all eccentricity vector E1 ..., EP presented in sector.
Accumulation bias on quadrant MEQ is quality parameter to be optimized.
Instruction parameter is given before or after correction is intervened to the quantitative assessment of true rotor unbalance and with being counted
The configuration that the corrective action drawn generates is associated expected uneven.
If the rotor of full symmetric balance, the maximum on remaining momentum weight PMR, unbalanced index IS and quadrant
It is zero to accumulate bias.Higher value represents the equilibrium condition deteriorated, until threshold value, more than threshold value, then rotor is not met.
In a further embodiment, quality parameter to be optimized is normalized, makes the residue with dimension and weight
Momentum component PMR, unbalanced index IS and the combination as cumulative maximum bias on standard limit MEQ.The quality parameter of this type
It is robust because it is summarised respectively by the cumulative maximum on remaining momentum component PMR, unbalanced index IS and quadrant MEQ
Various aspects representated by bias.
Once treating stations 11 determine the respective value of all modification configurations and quality parameter, then optimize quality parameter
(modification that in this case, remaining momentum weight is minimized is configured for configuration；Fig. 8, frame 350) it is just chosen.
Once performing selected modification measure using the process, inspection result is shown in Figure 11 and Figure 12.
Particularly, the newer misalignment measurement of leaf dish 2 in actual modification configuration is obtained.The newer misalignment measurement of leaf dish 2
By the polar coordinate representation of the eccentricity vector E1 " ..., EP " in Figure 11, while Figure 12 is showing along the update in result ER " directions
Eccentricity component ER1 " ..., ERP ".
In one embodiment, treating stations 11 are configured to identify several groups of candidate's leaf dishes 2, every group be defined as rotor 1 two
The group of continuous leaf dish 2 between a danger zone.In this case, treating stations 11 determine corrective action, generally as described,
In the presence of likely also providing at least one relative rotation between continuous leaf dish 2.
The modification configuration of rotor can be determined according to the method for the present invention, and when measuring benefit, modification configuration is likely to shape
Into satisfactory balance.The risk of complex operations therefore, it is necessary to which rotor is disassembled and reset for several times be avoided or
Person is at least greatly decreased.Service intervention number is minimized to save considerable expense.Further, there is relatively low meter
Burden is calculated, this method can define a kind of potential satisfactory configuration, and optimal case is then present among such.
It is finally apparent that in the case of the scope of the present invention being detached from defined in appended claims, it can be right
It makes a change and changes in the method and device.
Claims (14)
1. a kind of method of balance fuel gas turbine wheel (1), the gas turbine rotor (1) has continuously to be arranged along line (A)
Multiple leaf dishes (2), the method includes：
Obtain the misalignment measurement (ER1 ..., ERP) of the leaf dish (2) of reaction wheel (1) in initial configuration；
Based on misalignment measurement (ER1 ..., ERP), at least two danger zones of identification rotor (1), wherein continuous leaf dish (2) it
Between eccentric variation do not meet acceptance criteria；
Identification is arranged at least first group of continuous leaf dish (2) between two danger zones；
Determine at least one corrective action of rotor (1), the corrective action is included in two continuous leaves of first group of leaf dish (2)
The relative rotation of axis (A) is surrounded between disk (2)；And
Perform the corrective action.
2. according to the method described in claim 1, wherein identification is defined as at least two first groups of continuous leaf dishes of danger zone
(2) include：
The multiple second group of continuous leaf dish (2) of identification in rotor (1)；
For each second group of leaf dish (2), the interpolating function of leaf dish (2) corresponding points in each second group of leaf dish (2) is inserted into selection
(F)；
Based on each interpolating function (F) of each second group of leaf dish (2), the margin of tolerance (R) is defined；And
Identify second group of leaf dish (2) as danger zone, indivedual misalignment measurements of wherein at least one leaf dish (2) (ER1 ...,
ERP) except each margin of tolerance (R).
3. according to the method described in claim 2, wherein described interpolating function (F) is polynomial function.
4. according to the method described in claim 3, wherein described interpolating function (F) is based on the leaf dish in each second group of leaf dish (2)
(2) misalignment measurement (ERJ, ERJ+1, ERJ+2；ERK, ERK+1, ERK+2) it is selected.
5. include according to the method described in claim 1, wherein obtaining misalignment measurement (ER1 ..., ERP)：
For each leaf dish (2), about the rotary shaft (AR) of rotor (1), determine eccentricity vector (E1 ..., EP), it is described it is eccentric to
The eccentric amplitude of size instruction leaf dish (2) of (E1 ..., EP) is measured, its phase instruction leaf dish (2) eccentric direction,
Definitive result eccentricity vector (ER)；And
According to result eccentricity vector (ER) come be determined as the misalignment measurement of eccentricity vector (E1 ..., EP) component (ER1 ...,
ERP)。
6. according to the method described in claim 1, at least one corrective action of wherein described determining rotor (1) includes：
For each of multiple modifications configuration of rotor (1), the expected eccentric of rotor (1) all leaf dishes (2) is determined
(El' ..., EP'), wherein the continuous leaf dish (2) of two of first group of leaf dish (2) relative to initial configuration about being revolved each other
Turn；
For each modification configuration, quality parameter (PMR is calculated；IS；MEQ), the quality parameter (PMR；IS；MEQ) instruction is repaiied
Change the expected imbalance of rotor (1) in configuration；And
Selection optimization quality parameter (PMR；IS；MEQ modification configuration).
7. according to the method described in claim 6, wherein described modification configuration includes following configuration, for first group of leaf dish (2)
Each pair of continuous leaf dish (2), this is to the leaf dish (2) in continuous leaf dish (2) relative to initial configuration with certain inclination, with certain
Interval about being rotated each other.
8. according to the method described in claim 6, including：
Determine rotor (1) with the selected modification associated equilibrium index of configuration and
Equilibrium index and threshold value are compared.
9. according to the method described in claim 1, including：
Obtain update misalignment measurement of the leaf dish (2) of reaction wheel (1) in initial configuration about rotary shaft (AR)
(El",…,EP")；
The balance check of rotor (1) is performed using newer misalignment measurement (El " ..., EP ").
10. a kind of auxiliary device of balance fuel gas turbine wheel, the gas turbine rotor has what is continuously arranged along line (A)
Multiple leaf dishes (2), described device includes：
Measuring instrument (12), for detecting rotary shaft (CR) of each leaf dish (2) relative to the rotor (1) being placed in support (13)
Eccentric related data；And
Treating stations (11), are used for：
Obtain the misalignment measurement (ER1 ..., ERP) of the leaf dish (2) of reaction wheel (1) in initial configuration；
Based on misalignment measurement (ER1 ..., ERP), at least two danger zones of identification rotor (1), wherein continuous leaf dish (2) it
Between eccentric variation do not meet acceptance criteria；
The continuous leaf dish (2) of at least one set that identification is arranged between two danger zones；And
Determine at least one corrective action of rotor (1), the corrective action is included in two continuous leaves of first group of leaf dish (2)
The relative rotation of axis (A) is surrounded between disk (2).
11. device according to claim 10, wherein the treating stations (11) are used for：
The multiple second group of continuous leaf dish (2) of identification in rotor (1)；
For each second group of leaf dish (2), the interpolating function of leaf dish (2) corresponding points in each second group of leaf dish (2) is inserted into selection
(F)；
Based on each interpolating function (F) of each second group of leaf dish (2), the margin of tolerance (R) is defined；And
Identify second group of leaf dish (2) as danger zone, indivedual misalignment measurements of wherein at least one leaf dish (2) (ER1 ...,
ERP) except the corresponding margin of tolerance (R).
12. according to the devices described in claim 11, wherein the treating stations are used for based on the leaf dish in each second group of leaf dish (2)
(2) misalignment measurement (ERJ, ERJ+1, ERJ+2；ERK, ERK+1, ERK+2) select the interpolating function (F).
13. device according to claim 10, wherein the treating stations are used for：
For each leaf dish (2), eccentricity vector (E1 ..., EP) is determined for the rotary shaft (AR) of rotor (1), it is described it is eccentric to
The eccentric amplitude of size instruction leaf dish (2) of (E1 ..., EP) is measured, phase indicates leaf dish (2) eccentric direction,
Definitive result eccentricity vector (ER)；And
According to result eccentricity vector (ER) come be determined as the misalignment measurement of eccentricity vector (E1 ..., EP) component (ER1 ...,
ERP)。
14. device according to claim 10, wherein the treating stations are used for：
For each of the multiple modification configurations of rotor (1), determine rotor (1) all leaf dishes (2) it is expected eccentric (El' ...,
EP'), wherein two continuous leaf dishes (2) of first group of leaf dish (2) relative to initial configuration about being rotated each other；
For each modification configuration, quality parameter is calculated, rotor (1) is expected uneven in the quality parameter instruction modification configuration
Weighing apparatus；And
The modification configuration of selection optimization quality parameter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2014A000369 | 2014-05-09 | ||
| ITTO20140369 | 2014-05-09 | ||
| PCT/IB2015/053388 WO2015170296A1 (en) | 2014-05-09 | 2015-05-08 | Method and auxiliary apparatus for balancing a rotor of a gas turbine |
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| Publication Number | Publication Date |
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| CN106536857A CN106536857A (en) | 2017-03-22 |
| CN106536857B true CN106536857B (en) | 2018-07-03 |
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| CN201580024251.6A Active CN106536857B (en) | 2014-05-09 | 2015-05-08 | The method and auxiliary device be balanced to gas turbine rotor |
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| EP (1) | EP3140513B1 (en) |
| CN (1) | CN106536857B (en) |
| WO (1) | WO2015170296A1 (en) |
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| FR3073045B1 (en) * | 2017-10-26 | 2019-11-22 | Safran Aircraft Engines | METHOD FOR BALANCING A SET OF AUBES |
| EP3896252B1 (en) * | 2020-04-16 | 2023-04-12 | ANSALDO ENERGIA S.p.A. | Method and assembly for controlling the positioning of at least one rotor disc about a tie-rod of a partially assembled rotor |
| CN115575038B (en) * | 2022-11-24 | 2023-04-07 | 中国航发沈阳发动机研究所 | Control method for reducing rotation inertia excitation of compressor rotor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6341419B1 (en) * | 2000-02-29 | 2002-01-29 | General Electric Company | Loop stacked rotor assembly |
| EP2075406A2 (en) * | 2007-12-27 | 2009-07-01 | Pratt & Whitney Canada Corp. | Gas turbine rotor assembly method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7539594B2 (en) * | 2006-09-26 | 2009-05-26 | Axiam, Incorporated | Method and apparatus for geometric rotor stacking and balancing |
| US7792600B2 (en) * | 2007-12-31 | 2010-09-07 | General Electric Company | System and a method for assembling a rotor stack |
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2015
- 2015-05-08 CN CN201580024251.6A patent/CN106536857B/en active Active
- 2015-05-08 EP EP15732349.4A patent/EP3140513B1/en active Active
- 2015-05-08 WO PCT/IB2015/053388 patent/WO2015170296A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6341419B1 (en) * | 2000-02-29 | 2002-01-29 | General Electric Company | Loop stacked rotor assembly |
| EP2075406A2 (en) * | 2007-12-27 | 2009-07-01 | Pratt & Whitney Canada Corp. | Gas turbine rotor assembly method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3140513B1 (en) | 2019-04-24 |
| WO2015170296A1 (en) | 2015-11-12 |
| CN106536857A (en) | 2017-03-22 |
| EP3140513A1 (en) | 2017-03-15 |
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